ОБОГРЕВАТЕЛЬ

Изобретение относится к электротехнике, в частности к области силовой преобразовательной техники, и может быть использовано в устройствах, преобразующих электрическую энергию в тепловую. Обогреватель, сетевой питающий кабель (1) которого, состоящий из двух силовых проводников, а при необходимости заземления защитного корпуса (2) или деталей конструкции нагревательного элемента, из трех проводников, подводится к защитному корпусу, внутри которого первый силовой проводник (3) питающего кабеля подключен к первому силовому проводнику (4) разделительного кабеля непосредственно, а второй силовой проводник (6) сетевого кабеля подключен ко второму силовому проводнику (7) разделительного кабеля через ключ переменного тока, состоящий минимум из двух полевых транзисторов и связанный со схемой управления, включающей в себя датчик температуры и устройство установки температуры срабатывания. Техническим результатом является повышение надежности, удешевление, улучшение производственных и эксплуатационных ...

БЫСТРОДЕЙСТВУЮЩЕЕ НАГРЕВАЮЩЕЕ УСТРОЙСТВО ДЛЯ НАГРЕВАНИЯ ТВЕРДОГО ВЕЩЕСТВА, ЖИДКОСТИ, ГАЗА И ПАРОВ

Предложено нагревающее устройство, содержащее нагреватель (2), выполненный из материала, электрическое сопротивление которого может изменяться в зависимости от температуры, источник (1, 10) энергии, присоединенный к нагревателю (2) при помощи электрических соединений (8, 9) для подачи электрического тока, протекающего через нагреватель (2), блок (4) управления, выполненный с возможностью регулирования тока, подаваемого источником (1) энергии, измерительные соединения (6, 7), расположенные на концах нагревателя (2) и соединенные с блоком (4) управления, который выполнен с возможностью измерения сопротивления нагревателя (2) путем вычисления соотношения между напряжением на концах нагревателя (2) и током, протекающим через нагреватель (2), причем напряжение и ток регистрируются с помощью измерительных соединений (6, 7). Изобретение обеспечивает решение проблемы измерения сопротивления и температуры нагревателя, связанной с большим временем отклика, когда используется источник питания переменного ...

СПОСОБ РЕГУЛИРОВАНИЯ ПАРОВОЙ УСТАНОВКИ В БЫТОВОМ УСТРОЙСТВЕ

Изобретение относится к способу регулирования паровой установки в бытовом устройстве, в котором паровой установкой вырабатывается водяной пар, в частности горячий, или перегретый. Водяной пар подается в область обработки, в частности к барабану. Указанная паровая установка содержит, по меньшей мере, один парогенератор с нагревательным элементом и средства водоснабжения для подачи воды к парогенератору. Измеряют температуру парогенератора, в частности температуру его поверхности, и/или температуру нагревательного элемента парогенератора, и/или температуру водяного пара, и при нормальном рабочем режиме нагревательный элемент парогенератора и/или средства водоснабжения регулируются таким образом, что измеренная температура поддерживается между заданными нижним и верхним температурными пределами. Нормальный режим работы состоит из первой фазы и второй фазы, причем в первой фазе при нормальном рабочем режиме, начинающейся при достижении заданного нижнего температурного предела и продолжающейся ...

ЭЛЕКТРИЧЕСКАЯ СХЕМА ДЛЯ ЭНЕРГОСНАБЖЕНИЯ

Изобретение относится к электротехнике, а именно к электрическим схемам для токоприемников. Технический результат, заключающийся в создании более дешевой схемы с упрощенным расположением элементов, достигается путем того, что в электрической схеме для токоприемника, с двумя параллельными между собой первым и вторым тепловыми резисторами, с подключенным источником переменного напряжения, а также с вентиляторным электромотором постоянного тока, который связан с одним из резисторов через выпрямительную схему, выпрямительная схема имеет только два выпрямителя со встречным соединением, причем к точке соединения выпрямителей подсоединено одно из мест подключения вентиляторного электромотора постоянного тока, и к другому месту подключения вентиляторного электромотора постоянного тока подсоединен второй резистор или тепловой резистор. 7 з.п.ф-лы, 3 ил.

НАГРЕВАТЕЛЬ ДЛЯ УСТРОЙСТВА, ГЕНЕРИРУЮЩЕГО АЭРОЗОЛЬ, С СОЕДИНИТЕЛЯМИ

Изобретение относится к устройствам, генерирующим аэрозоль, и системам, таким как удерживаемые рукой электрически управляемые устройства, генерирующие аэрозоль, и системы. Устройство, генерирующее аэрозоль, содержит корпус и блок питания, выполненный с возможностью подачи электропитания на нагревательный элемент посредством трансформатора в сборе внутри корпуса. Трансформатор в сборе содержит магнитопровод, первичную цепь, содержащую первичную обмотку, проходящую вокруг первой части магнитопровода и электрически соединенную с блоком питания, и вторичную цепь, содержащую вторичную обмотку, индуктивно связанную с первичной обмоткой и проходящую вокруг второй части магнитопровода. Количество витков в первичной обмотке превышает количество витков во вторичной обмотке. Вторичная цепь содержит по меньшей мере два электрических контакта, выполненных с возможностью образования электрического соединения с нагревательным элементом. Технический результат заключается в обеспечении большей гибкости ...

СИСТЕМА УПРАВЛЕНИЯ НАГРЕВАТЕЛЕМ

Система управления нагревателем, имеющая электрические нагревательные элементы, питаемые от источника трехфазного переменного тока через твердотельные реле, соединенные с контроллером, и снабженная блоком предохранительного выключателя, характеризующаяся тем, что каждый из нагревательных элементов (G) соединен с отдельным твердотельным реле (K1, K2, K3) пропорционального управления и все твердотельные реле (K1, K2, K3) пропорционального управления соединены с контроллером (S) через повторитель (W) управляющих сигналов. Изобретение повышает эффективность управления нагревательными элементами. 2 з.п. ф-лы, 2 ил.

УСТРОЙСТВО ДЛЯ ГЕНЕРИРОВАНИЯ АЭРОЗОЛЯ И СПОСОБ БЛОКИРОВКИ ТЕПЛА НАГРЕВАТЕЛЯ, ВОЗНИКАЮЩЕГО В РЕЗУЛЬТАТЕ НЕКОРРЕКТНОЙ РАБОТЫ

Изобретение относится к устройству для генерирования аэрозоля, более конкретно, к устройству для генерирования аэрозоля, блокирующему тепловыделение нагревателя вследствие неисправности процессора. Устройство для генерирования аэрозоля содержит: нагреватель; первый переключатель, электрически соединенный с нагревателем последовательно; второй переключатель, электрически соединенный последовательно с нагревателем и первым переключателем; первый процессор, выполненный с возможностью вывода первого управляющего сигнала, управляющего разомкнутым/замкнутым положением первого переключателя; и второй процессор, выполненный с возможностью осуществления связи с первым процессором и вывода второго управляющего сигнала, управляющего разомкнутым/замкнутым положением второго переключателя таким образом, что разомкнутое/замкнутое положение второго переключателя можно изменить на основе состояния связи с первым процессором. Технический результат - устройство и способ генерирования аэрозоля, блокирующие ...

ЭЛЕКТРИЧЕСКИЙ КОНВЕКТОРНЫЙ ОБОГРЕВАТЕЛЬ ИНВЕРТОРНОГО ТИПА

... 1. Электрический конвекторный обогреватель инверторного типа, содержащий корпус с воздухозаборными отверстиями, размещенными снизу, и воздуховыпускными отверстиями, расположенными в верхней части корпуса, переднюю теплоизлучающую панель, нагревательный элемент, блок управления с кнопкой включения, токоподвод, блок управления состоит из корпуса, внутри которого размещена электрическая плата, отличающийся тем, что на корпусе установлен датчик температуры, а на электрической плате размещены соединенные друг с другом исполнительный элемент и элемент контроля, при этом исполнительный элемент электрически соединен с нагревательным элементом, а элемент контроля электрически соединен с датчиком температуры.2. Электрический конвекторный обогреватель инверторного типа по п. 1, отличающийся тем, что в качестве исполнительного элемента использован тиристер.3. Электрический конвекторный обогреватель инверторного типа по п. 1, отличающийся тем, что в качестве элемента контроля использован процессор.4 ...

Таймер холодильных устройств

ТАЙМЕР ОТТАЙКИ ХОЛОДИЛЬНЫХ УСТРОЙСТВ

Полезная модель относится к области автоматики и может быть использована для периодических включений исполнительных устройств автоматики переменного тока, например, холодильных устройств. Техническая задача, решаемая предлагаемой полезной моделью, - упрощение конструкции, повышение надежности работы за счет уменьшения количества дискретных элементов таймера, облегчение выбора оптимального варианта для конкретных условий применения. Поставленная задача решается тем, что: по первому варианту таймер оттайки холодильных устройств, содержащий источник питания, счетчик времени, нагреватель, датчик окончания оттайки, компрессор, выпрямитель, гасящий элемент, ограничитель напряжения, пороговый элемент, трехконтактное электромагнитное реле, подвижный контакт которого подключен ко второму полюсу источника питания; общий вывод счетчика времени соединен с первым неподвижным контактом реле, и через компрессор - с первым полюсом источника питания; счетный вход счетчика времени через нагреватель соединен ...

ЭЛЕКТРОГРЕЛКА

Электрогрелка, содержащая нагревательный элемент, заключенный в гибкую оболочку, устройство защитного отключения электрогрелки от перегрева в виде необратимого нормально замкнутого предохранителя, соединенного последовательно с нагревательным элементом, и переключатель режимов работы, отличающаяся тем, что в устройство защитного отключения введены тиристор и конденсатор, подключенные параллельно выводом нагревательного элемента, а необратимый нормально замкнутый предохранитель выполнен в виде токового предохранителя.

УСТРОЙСТВО УПРАВЛЕНИЯ ПЛИТОЙ

Устройство управления плитой, содержащее плату управления и силовую плату, конструктивно соединенные между собой крепежными элементами и шлейфом, припаянным к силовой плате, а разъем соединен с платой управления для управления режимами работы нагревательных элементов и отображения состояния на дисплеях и индикаторах, при этом микроконтроллер со встроенным таймером платы управления связан с мультиплексором, сенсорные кнопки блокировки и двойного нагрева соединены с индикатором режима двойного нагрева, а импульсный источник питания включает в себя импульсный трансформатор с варистором и связан через реле для включения дополнительных элементов питания и узла подачи звуковых сигналов.

КОНТРОЛЛЕР-ИНДИКАТОР ТЕМПЕРАТУРЫ

... 1. Контроллер-индикатор температуры, содержащий источник питания, датчик температуры, блок обработки, индикатор режима работы, индикатор температурного режима, клавиатуру управления с не менее чем двумя кнопками увеличения и уменьшения задаваемых значений и блок управления нагревательными элементами, выход которого выполнен с возможностью подключения к нагревательным приборам, отличающийся тем, что индикатор режима работы выполнен в виде двухцветного светодиодного индикатора с возможностью изменения цвета при переходе измеряемого значения температуры через заданное значение, блок обработки выполнен в виде однокристальной микроЭВМ, соответствующие входы которой соединены с датчиком температуры и клавиатурой управления, а соответствующие выходы - с индикатором режима работы и входом блока управления.2. Контроллер-индикатор температуры по п.1, отличающийся тем, что один из выходов блока обработки соединен с входом введенного формирователя протокола связи, выполненного с возможностью соединения ...

ТАЙМЕР ОТТАЙКИ

Изобретение относится к области автоматики и может быть использовано для периодических включений исполнительных устройств автоматики переменного тока. Технический результат – снижение потребления электроэнергии за счет снижения ее потерь в процессе работы таймера, повышение степени универсальности таймера. Таймер оттайки содержит источник питания, счетчик времени, нагреватель, датчик окончания оттайки, компрессор, первый выпрямитель, первый и второй гасящий элементы, трехконтактное реле, подвижный контакт которого подключен к второму полюсу источника питания, учетный вход счетчика времени через нагреватель соединен со вторым неподвижным контактом реле и через датчик окончания оттайки соединен с первым полюсом источника питания. Общий вывод счетчика времени соединен с первым неподвижным контактом реле и через компрессор соединен с первым полюсом источника питания. Входы первого выпрямителя включены между неподвижными переключающими контактами трехконтактного реле через первый гасящий элемент ...

СИСТЕМА ПОДОГРЕВА ДЛЯ КОНСТРУКЦИЙ

Изобретение относится к устройствам для предохранения конструкций от повреждения от холода. Электрический ток большой величины и низкого напряжения подается в замкнутый проводящий контур. Предпочтительно, чтобы ток индуцировался в контур посредством трансформатора. Контур состоит из по меньшей мере одного или последовательности проводящих элементов конструкции, которая должна быть нагрета. Величина тока является достаточной по отношению к удельному сопротивлению элементов, чтобы вызвать генерацию тепла внутри элементов. Предпочтительно, чтобы ток был переменным для прохождения его по поверхности элемента или около нее для увеличения эффективного удельного сопротивления элемента и посредством этого увеличения генерирования тепла в нем, в первую очередь около поверхности элементов. Изобретение позволяет нагревать конструкцию в любом месте без применения специальных нагревательных устройств. 16 з.п.ф-лы, 17 ил.

УСТРОЙСТВО ДЛЯ ЗОНАЛЬНОГО ОБОГРЕВА КРИОГЕННОГО РЕГУЛИРУЮЩЕГО АППАРАТА

Устройство для зонального обогрева криогенного регулирующего аппарата, например запирающего элемента, содержащего закрепленный в кожухе криогенной емкости полый корпус 1, внутри которого размещен подвижный вдоль корпуса шток 2, связанный одним концом с выходом привода 3 перемещения штока, а другим - с запирающим элементом 4, изменяющим проходное сечение трубопровода, по которому протекает сжиженный газ. С наружной стороны корпуса 1 регулирующего аппарата установлено не менее одного резистивного нагревательного элемента 11 и датчика температуры 12. Нагревательный элемент 11 и датчик температуры 12 могут быть установлены и на корпусе привода 3. Кроме того, устройство содержит регулятор напряжения 13, задатчик температуры 14 и регулирующее устройство 15, подключенное первым входом к выходу задатчика температуры, вторым входом - к выходу датчика температуры 12, а выходом - к управляющему входу регулятора напряжения, подключенного силовым входом к источнику питания 16. Для удобства монтажа на ...

СПОСОБ РАБОТЫ АККУМУЛЯЦИОННОГО ЭЛЕКТРООБОГРЕВА И УСТРОЙСТВО УПРАВЛЕНИЯ ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

Использование: в технике электрообогрева для управления аккумуляционным обогревом усадебных домов, коттеджей и т.д. Сущность изобретения: время провала графика нагрузки дополнительно разбивают на равные интервалы времени, в каждом из которых последовательно включают суточное аккумуляционное электрообогревающее устройство и долгосрочное аккумуляционное устройство горячего водоснабжения, при этом включение суточного аккумуляционного обогревающего устройства в каждом последовательном интервале времени производят на время τi, которое определяют делением времени, необходимого для зарядки суточного аккумуляционного обогревающего устройства до требуемой температуры, на количество оставшихся до окончания провала графика нагрузки интервалов времени, причем в каждом указанном интервале времени производят коррекцию требуемой температуры зарядки суточного аккумуляционного обогревающего устройства. 2 с.п. ф-лы, 6 ил.

УСТРОЙСТВО ГЕНЕРИРОВАНИЯ АЭРОЗОЛЯ

Устройство генерирования аэрозоля содержит источник питания, по меньшей мере один нагревательный элемент для генерирования аэрозоля и средство контроля температуры нагревательного элемента. Устройство выполнено с возможностью, когда оно находится в рабочем режиме, регулирования подачи питания на нагревательный элемент таким образом, что питание подается на нагревательный элемент для начального повышения его температуры до первого порогового значения; подача питания на нагревательный элемент отключается, когда средство контроля температуры обнаружит, что температура нагревательного элемента равна первому пороговому значению, вызывая тем самым снижение температуры нагревательного элемента до второго порогового значения; включения подачи питания на нагревательный элемент, когда средство контроля температуры обнаружит, что температура нагревательного элемента понизилась до второго порогового значения, вызывая тем самым повышение температуры нагревательного элемента до первого порогового значения ...

ОБОГРЕВАТЕЛЬ

Изобретение относится к электротехнике, в частности к области силовой преобразовательной техники, и может быть использовано в устройствах, преобразующих электрическую энергию в тепловую. Техническим результатом является повышение надежности и уменьшение потерь электрической энергии в режиме «ожидания». Обогреватель, питающий кабель которого подводится к защитному корпусу, внутри которого находится первая схема управления, из защитного корпуса выходит соединительный кабель, состоящий из четырех проводников, два из которых связаны с напряжением сети: один с заземлением и один с цифровым выходом первой схемы управления, с другого конца кабеля, проводники, связанные с напряжением сети, подключены через первый и второй ключевые элементы к нагревательному элементу, проводник заземления подключен к радиатору, проводник, связанный с цифровым выходом первой схемы управления, подключен к первому входу второй схемы управления, у которой первый выход подключен к входу первого ключевого элемента, второй ...

РЕГУЛЯТОР МОЩНОСТИ

Регулятор мощности относится к электромеханическим регуляторам мощности, предназначенным для бесступенчатого регулирования потребления электрической мощности нагревательными элементами бытовых тепловых электроприборов, в частности конфорок кухонных электроплит. Регулятор мощности содержит биметаллический контролер, представляющий собой биметаллическую пластину L-образной формы с резистивным элементом косвенного нагрева, биметаллический компенсатор, быстродействующий выключатель, распределительный вал, механизм фиксации положений вала, толкатель, подвижные и неподвижные контакты управления. Кроме того, толкатель выполнен с продольным пазом, охватывающим распределительный вал, и двумя выступами цилиндрической и ромбовидной формы, при этом цилиндрическим выступом толкатель наложен на пружинный контактодержатель V-образной формы, а ромбовидным выступом - на пружинный контактодержатель плоской формы, причем оба контактодержателя консольно закреплены по обе стороны вала и содержат по одному серебросодержащему ...

УСТРОЙСТВО И СПОСОБ ЗАЩИТЫ БЫТОВОГО ПРИБОРА ОТ НЕПРЕДНАМЕРЕННОЙ РАБОТЫ

... 1. Устройство для защиты бытового прибора, в частности бытового прибора для приготовления пищи, от непреднамеренной работы, содержащее, по меньшей мере, один исполнительный элемент (8) и, по меньшей мере, одно взаимодействующее, по меньшей мере, с одним исполнительным элементом (8) электрическое включающее устройство с функцией временной задержки, у которого при приведении в действие, по меньшей мере, одного исполнительного элемента (8) в течение заданной или задаваемой минимальной продолжительности срабатывания, по меньшей мере, в одной зоне (4), духовке (5) бытового прибора (2) за счет включающего устройства прерывается/прервано или восстанавливается/восстановлено электропитание или блокируется/блокирована или освобождается/освобождена, по меньшей мере, одна функция включения бытового прибора (2). 2. Устройство по п.1, у которого при приведении в действие, по меньшей мере, одного исполнительного элемента (8) в течение заданного или задаваемого минимального промежутка времени прерывается ...

СПОСОБ ЭКОНОМИИ ЭЛЕКТРОЭНЕРГИИ

Способ экономии электроэнергии от источников постоянного или переменного тока произвольной частоты, формы и амплитуды, отличающийся тем, что в целях максимальной экономии электронагреватель периодически включают на заданный интервал времени t1 с последующим соответствующим выключением через интервал t2.

НАГРЕВАТЕЛЬНАЯ УСТАНОВКА

... 1. Нагревательная установка, преимущественно для электроотопления помещений, включающая нагреватели, подключенные к сети через тиристорный регулятор мощности, компаратор, подключенный к датчику температуры, блоки синхронизации, блок установки и коммутатор, отличающаяся тем, что она снабжена последовательно соединенными: модулями защитного отключения, один из которых соединен непосредственно с сетью и с входом тиристорного регулятора мощности, выход которого подключен к входу модулей защитного отключения каждого помещения и соединен с программируемым таймером; резисторами и блоками контроля каждого помещения, выход одного из которых соединен с входом коммутатора, подключенного к первому модулю защитного отключения, при этом выход коммутатора подключен через резистор к заземляющей шине, и дополнительным коммутатором каждого помещения, входы которого соединены с выходами модуля защитного отключения и блока контроля каждого помещения, а выход - через резистор каждого помещения с заземляющей ...

СИСТЕМЫ ДЛЯ КОМБИНИРОВАННЫХ НАГРЕВАТЕЛЕЙ ЗОН ДЛЯ ЛЕТАТЕЛЬНОГО АППАРАТА С НЕСУЩИМ ВИНТОМ И СПОСОБЫ ИХ ЭКСПЛУАТАЦИИ

Группа изобретений относится к антиобледенительным системам для летательного аппарата и способу удаления или предотвращения образования льда на лопастях летательного аппарата с несущим винтом. В первом варианте система содержит комбинированные лопасти, разделенные на секции определенным образом, множество первых и вторых нагревательных систем, распределенных на разных секциях несущего винта, блок управления. Во втором варианте система отличается от первого расположением нагревательных элементов. Способ включает определение условий обледенения, обеспечение условий подачи питания на нагревательные элементы. Обеспечивается всепогодное использование летательного аппарата. 3 н. и 17 з.п. ф-лы, 8 ил., 1 табл.

НАГРЕВАТЕЛЬНЫЙ ЭЛЕМЕНТ С УПРАВЛЕНИЕМ ТЕМПЕРАТУРОЙ

... 1. Нагревательное устройство, содержащее нагревательный элемент, теплопровод и первый и второй преобразователи регулятора температуры, находящиеся в непосредственном контакте с теплопроводом, при этом первый преобразователь регулятора температуры расположен на первом расстоянии от нагревательного элемента, второй преобразователь регулятора температуры расположен на втором, меньшем, чем первое, расстоянии от нагревательного элемента, при этом порог срабатывания первого преобразователя регулятора температуры ниже порога срабатывания второго преобразователя регулятора температуры. !2. Устройство по п.1, в котором оба преобразователя регулятора температуры выполнены на одной и той же поверхности теплопровода. ! 3. Устройство по п.1, в котором первый и второй преобразователи регулятора температуры выполнены на двух различных поверхностях теплопровода. !4. Устройство по п.1, в котором нагревательный элемент выполнен на теплопроводе в виде покрытия. ! 5. Устройство по п.1, в котором нагревательный ...

ЭЛЕКТРОВОДОНАГРЕВАТЕЛЬ

Электроводонагреватель относится к электробытовым нагревательным приборам и может быть использован для нагрева воды для бытовых нужд. Цель изобретения - повышение надежности благодаря исключению перегрева электронагревателей, вызванного их преждевременным включением до заполнения корпуса водой. Электроводонагреватель содержит корпус, в полости которого установлены электронагревательные элементы, U-образный трубопровод подвода холодной воды, присоединенный к нижней части корпуса, кран для регулирования расхода, установленный на трубопроводе подвода холодной воды, датчик расхода, присоединенный к колену этого трубопровода и расположенный вместе с коленом не ниже верхней части теплопередающей поверхности электронагревательных элементов, трубопровод отвода воды, присоединенный к корпусу в верхней части и расположенный вне корпуса, местное гидравлическое сопротивление, установленное в трубопроводе отвода воды. Датчик расхода содержит мембрану, заключенную в кожух, сообщающийся посредством отверстия ...

ПРОТОЧНЫЙ ЭЛЕКТРОНАГРЕВАТЕЛЬНЫЙ АППАРАТ

Проточный электронагревательный аппарат для нагрева потока жидкости, например воды, содержащий один или несколько нагревательных элементов, систему управления мощностью нагревательных элементов, термодатчик и датчик потока нагреваемой жидкости, отличающийся тем, что нагревательные элементы выполнены в виде вакуумного диода с разогреваемым подогревателем термокатодом, анод которого обтекается потоком нагреваемой жидкости, система управления мощностью нагревательных элементов содержит блок управления, включенный в цепь подогревателя катода, и датчики потока и температуры нагреваемой жидкости, выходы которых выведены на блок управления.

УСТРОЙСТВО ДЛЯ ОПРЕДЕЛЕНИЯ НЕСИНХРОННОСТИ СИГНАЛОВ

Устройство относится к области электроизмерений, автоматике и импульсной технике и может быть применено для автоматического управления режимами работы каналов синхронизации. Сущность изобретения заключается в изменении совокупности существенных признаков известного устройства, изменении связей устройства, позволяющих исключить элементы совпадений, сравнений, триггеры и др. и источники их питания, и тем самым упростить устройство. Устройство содержит усилительные элементы, вентили, элемент индикации и выводы (шины) для подключения источников сигналов, другие исполнения элементов устройства. Новым в устройстве являются все связи элементов устройства.

УСТРОЙСТВО ДЛЯ ПРИГОТОВЛЕНИЯ ПИЩИ

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Изобретение относится к электротехнике , Цель изобретения - Повышение надежности при размещении датчика температуры снаружи корпуса прибора . Наличие таймеров 10-12 и логи- .ческих элементов 8 ИСКЛЮЧАЩЕЕ ИЛИ и 9 ЗАПРЕТ -позволяет провести пред- варительнь Й пробный нагрев 15-20 с для определения наличия достаточного количества воды в njHiGope по росту температуры корпуса прибора. Если вода достаточно, за время работы таймера 10 температура корпуса не изменится . После отработки уставки тай-. мером 1i 30-50 с разрешается нагрев до конечной температуры закипания, определяемой по экстремуму производной от температуры, 2 ип. : ...

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УСТРОЙСТВО ДЛЯ ПОДОГРЕВА МЕТАЛЛИЧЕСКОГО ИЗДЕЛИЯ

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Электрокалорифер

Использование: при ступенчатом регулировании нагрева в сельскохозяйственных постройках. Цель: повышение надежности и расширение функциональных возможностей . Сущность изобретения: электрокалорифер содержит вентилятор 1, двигатель которого соединен через силовые контакты магнитного пускателя 2 и силовые контакты автомата 3 защиты двигатели с входным выключателем 4 питающей сети 5, предохранители 6, 12, 13, 14, датчик 7 защиты электрокалорифера, четырехпозиционный ...

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Изобретение относится к электротехнике . Цель - повышение надежности работы электронагревателя путем повышения точности срабатывания термоограничителя . Электронагреватель JiI xzl г содерзкит герметичный корпус 1, на- гревательные элементы 6 и 7 со стерж- невьши выводами 2-5. Электронагреватель снабжен термоограничителем. Подвижные его контакты 8-11 выполнены в форме стакана со спиральной прорезью , установленного на конце каждого вывода. Стакан выполнен из материала со структурой термоупругого мартенсита , которому придана обратимая память формы, а на его наружной торцовой поверхности,обращенной к неподвижным контактам 12-15, выполнен мартенситный микрорельеф. При перегреве за счет уменьшения размеров подвижных контактов 8-11 прерывается питание нагревательных элементов и восстанавливается цепь питания при их охлаждении. Отмечено повышение быстродействия термоограничителя в 5-7 раз. 1 ил. с О) 4 ел ч ч Ni; ...

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Изобретение относится к электротехнике. Цель изобретения - повышение надежности работы установки. Наличие дополнительного сумматора 13 с ограничителем 14, задатчика 15 уровня и связь выхода сумматора 13 с элементом 9, формирующим выходной сигнал регулятора 8 по ПИ-закону, позволяет ограничить управляющий сигнал на силовом тиристорном блоке 2 при условии, когда заданная температура выше текущей, а сигнал на выходе регулятора ниже, чем на выходе. 1 ил.

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Ansteuerschaltung für eine Kochplattensteuerung mit als Kochplattenstellgliedern ausgebildeten Eingabeelementen (2-5) und einer Übertragungsstrecke zu einer digitalen Anzeigeeinheit (12-15), wobei die von den Eingabeelementen (2-5) für eine Kochplattensteuereinheit erzeugten Informationen über einen Multiplexer (7) und eine Gray-Code/7-Segment-Wandlungseinheit (8) einem von einem Oszillator (10) getakteten Parallel-Serienwandler (6) zugeführt werden, an dessen Ausgang eine Verbindungsleitung (Dat) liegt, die wiederum an einen Serien-Parallelwandler zur Ansteuerung der Anzeigeeinheit (12-15) angeschlossen ist.

Spannungsabhängige Betriebsfreigabe

Es wird ein Gerät (1a) zur Erzeugung von Wärme oder Kälte aus elektrischer Energie mit einer elektrischen Nennleistung von mindestens 100 Watt vorgeschlagen. Das Gerät dient zur Abgabe der Wärme oder Kälte in ein vorgegebenes Volumen (21), wobei die Energie mit Hilfe eines Versorgungsnetzes (47) an den Eingangsklemmen des Geräts zur Verfügung gestellt wird. Eine Spannungsmessvorrichtung (29) misst die an den Eingangsklemmen herrschende Spannung. Eine Steuervorrichtung (1b) bewirkt eine Freigabe des Betriebs des Geräts in Abhängigkeit von der gemessenen Spannung. Die Maßnahme dient der Netzstabilisierung eines Versorgungsnetzes, indem regenerative Energie in den Volumina bevorratet werden kann.

Contact breaker for preventing overheating in domestic appliances - operates by melting wire made of alloy whose surface tension, when molten, suffices to break wire

The device prevents overheating in clothes- or dish-washing machines. A metal alloy melting at the limit temperature interrupts a circuit. A wire (9) made of the alloy is placed in a heat resistant insulating jacket (8) whose inner dia. is at least 1.1 time the wire (9) outer dia. The liquid alloy has a surface tension high enough to break the melting wire, forming a gap. A metal protective tube is connected in thermal contact with the heating element. Inside the protective tube is a circuit loop formed from the wire and jacket.

Boiling plate power control - uses temp. sensor on plate surface and has safety switch disconnecting part of resistor

The controller has a power control unit which applies to at least a part of the heater the preselected power by periodic switching on and off. A further temperature sensitive switch (14) is provided, whose switching temperature is below that of the safety switch (8). It is in parallel with switching contacts (4) of the power control unit (6). When the pan begins to boil, the temperature sensitive switch (14) switches the boiling plate from maximum power to the power control by unit (6).

Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug

Elektrische Heizeinrichtung, insbesondere für ein Kraftfahrzeug, mit mehreren zu einem Heizblock (12) zusammengesetzten Heizelementen (14), wobei der Heizblock (12) in einem Rahmen (18) gehalten ist und mit einer Steuervorrichtung (28) zur Ansteuerung der Heizelemente (14), dadurch gekennzeichnet, dass die Steuervorrichtung (28) mit dem in dem Rahmen (18) gehaltenen Heizblock (12) eine bauliche Einheit bildet, so dass die Verlustleistung der Steuervorrichtung (28) dem zu erwärmenden Luftstrom zugeführt wird.

ELEKTRISCH BETRIEBENE TAUCHSCHIEDER UND IHRE REGELUNG

Heizsystem für eine Sauna sowie Sauna mit einem solchen Heizsystem

Die Erfindung betrifft ein Heizsystem für eine Sauna, umfassend einen Ofen, wobei das Heizsystem mit einem Stromnetz elektrisch verbindbar ist, wobei das Stromnetz eine erste elektrische Leistung bereitstellt und wobei das Heizsystem einen Akkumulator umfasst.Erfindungsgemäß ist vorgesehen, dass der Akkumulator eine zweite elektrische Leistung bereitstellt, wobei der Ofen zur Erhöhung der thermischen Leistung mit der ersten und zweiten elektrischen Leistung betreibbar ist.

Elektrischer Milchkocher

Einrichtung zur selbsttaetigen Regelung der Temperatur von elektrisch beheizten Baedern, insbesondere Aquarien

Sensorgesteuertes Kochfeld mit unterhalb der Kochfeldplatte angeordneter Sensoreinheit

Bekannt ist ein sensorgesteuertes Kochfeld mit einer Kochfeldplatte, insbesondere aus Glaskeramik, mit zumindest einer Kochzone, die mittels eines unterhalb der Kochfeldplatte angeordneten Heizelementes beheizbar ist, sowie mit einer unterhalb der Kochfeldplatte angeordneten und gegen deren Unterseite im Bereich eines flächenmäßig begrenzten Meßfleckes gerichteten Wärmestrahlungs-Sensoreinheit, die in Verbindung steht mit einer Steuereinheit zur Regelung der Heizleistung des Heizelementes. Um topfunabhängig eine möglich genaue Heizleistungsregelung zu erreichen, ist erfindungsgemäß vorgesehen, daß der Wert des Transmissionsgrades des Materials der Kochfeldplatte zumindest im Bereich des Meßfleckes zumindest im spektralen Meßbereich der Wärmestrahlungs-Sensoreinheit kleiner als 30%, vorzugsweise kleiner als 10% und insbesondere annähernd etwa 0% ist.

Backofen zum Niedertemperaturgaren

Backofen zum Garen mit niedrigen Temperaturen, insbesondere zum Niedertemperaturgaren, der in einer Backofenmuffel eine Heizeinrichtung im oberen Bereich und eine Heizeinrichtung im unteren Bereich der Backofenmuffel aufweist sowie einen ersten elektromechanischen Temperaturfühler für die Backofenmuffel, dadurch gekennzeichnet, dass der Backofen einen Wahlschalter bzw. Umschalter aufweist zum parallel und/oder seriellen Anschließen der beiden Heizeinrichtungen an eine Leistungsversorgung und einen zweiten zusätzlichen elektromechanischen Temperaturfühler aufweist, der in die Leistungsversorgung der durch den Wahlschalter seriell geschalteten Heizeinrichtungen eingeschleift ist zur thermostatischen Regelung des Backofens mit dieser Verschaltungsart.

Heizeinrichtung und Elektrogerät mit Heizeinrichtung

Eine Heizeinrichtung zur Beheizung einer Flüssigkeit im Durchfluss weist einen Träger auf mit Heizleitern darauf und mindestens zwei SMD-Temperatursensoren. Ein erster Temperatursensor ist nahe am Heizleiter angeordnet mit einem Abstand von weniger als der zweifachen Heizleiterbreite. Ein zweiter Temperatursensor weist einen größeren Abstand zum Heizleiter auf als der erste Temperatursensor, vorzugsweise mehr als der zweifache Abstand des ersten Temperatursensors vom Heizleiter.

GERAETESTECKDOSE

Gerätesteckverbindung

Temperaturregler

Thermostat

Schalt- und Regeleinrichtung an Backoefen von Elektroherden

ELEKTRONISCHE SCHALTUHR.

Heizungs-, Lüftungs- und/oder Klimaanlage mit Leistungsregelung, insbesondere für Kraftfahrzeuge

Heizungs- und/oder Lüftungsanlage, insbesondere zur Verwendung in einer Klimaanlage, insbesondere für ein Kraftfahrzeug, umfassend einen Luftwärmkanal (2), der einen Hauptradiator (6) mit darin umlaufenden heißen Wärmeträgermedium und einen elektrischen Hilfsradiator (7) enthält, wobei die besagten Radiatoren jeweils von einem Luftstrom durchströmt werden können, und die mit in den Fahrzeuginnenraum (H) führenden Luftauslässen (10) in Verbindung stehen, sowie Steuerungsmittel (11), mit denen die Anlage (1) in Abhängigkeit von eingegebenen Lufttemperaturparametern betrieben werden kann, dadurch gekennzeichnet, dass sie einen Temperaturfühler (16) enthält, der die Temperatur des im Hauptradiator (6) umlaufenden Wärmeträgermediums misst, und dass die Steuerungsmittel (11) eine Regelungseinheit (15) enthalten, die die Stromversorgung des Hilfsradiators (7) zumindest in Abhängigkeit von den eingegebenen Lufttemperaturparametern und der gemessenen Temperatur des Wärmeträgermediums regelt.

Sicherheitseinrichtung an einem Heizelement

Heizvorrichtung

Die Heizvorrichtung gemäß der vorliegenden Offenbarung ist ausgestattet mit: einer Wärmeerzeugungseinheit (12); einer Außenfläche (14a); einer Erfassungseinheit (13), die erfasst, wenn ein Objekt (5a) die Außenfläche berührt hat; einer ersten Steuerungseinheit (S210, S220), die die Zufuhr von Elektrizität zu der Wärmeerzeugungseinheit stoppt oder die Menge von zu dieser zugeführten Elektrizität reduziert, wenn das Objekt die Außenfläche in einem ersten Bereich (14c), wo die Außenfläche die Erfassungseinheit in einer ersten Richtung (Z), die die Wärmeerzeugungseinheit und die Außenfläche verbindet, überlagert, berührt; einen Temperatursensor (15), der angebracht ist, um von der Erfassungseinheit in eine Zweitrichtung (X), die die erste Richtung kreuzt, versetzt ist, und die Temperatur der Wärmeerzeugungseinheit erfasst; eine zweite Steuerungseinheit (S100, S110, S120, S130, S101, S121), die die Temperatur der Wärmeerzeugungseinheit auf der Grundlage der durch den Temperatursensor erfassten ...

PTC-Anordnung

Es wird ein PTC-Anordnung angegeben, mit mehreren PTC-Heizelementen (1a, 1b), wobei ein erster Teil der PTC-Heizelemente (1a) eine erste Referenztemperatur (T1) aufweist, die sich von einer zweiten Referenztemperatur (T2) der restlichen PTC-Heizelemente (1b) der Anordnung unterscheidet.

WAERMESCHALTVORRICHTUNG.

Switch monitor, at the electronic switch circuit for a multi-phase heating system, has an emergency direct input on a control defect

The technique is for monitoring the switches at an electronic circuit to open and close a multi-phase heating system (15,16) with the contact of a magnetically controlled switch (1) in each main current line (L1-L3,N) with a parallel contact of an auxiliary magnetically controlled switch (2) as a breaker and an electronic switch for each in series. Before each switch change, the contacts of the electronic switch (3) are closed and the switch is locked and the contacts of the auxiliary switch are opened. All the main current lines are measured at the input (4) and output (6) for a voltage drop to be registered at the micro-processor control (5). The current is measured (13) for a fault to be detected by the control. The impedance is registered at each heater. with open contacts, a weak current from the power supply (7) is used to test the relays (14) for short circuits. Temperature is measured by a sensor (19), the insulation is tested by a voltage connection (10) at the main current lines ...

Durchlauferhitzer

Durchlauferhitzer, insbesondere mit hydraulischer Steuerung und Blankdrahtheizkörpern, dadurch gekennzeichnet, dass in einem Wasserraum (6) der Durchlaufstrecke ein Schwimmkörper (11) angeordnet ist, der ein Schließorgan (12) bildet, trägt oder betätigt, und dass der Schwimmkörper (11) in Wasser hochschwimmend das Schließorgan (12) in Öffnungsstellung hält und dass der Schwimmkörper (11) bei Luft in der Durchlaufstrecke derart absinkt, dass das Schließorgan (12) die Wasser-Durchflussmenge reduziert oder den Wasserdurchfluss unterbricht.

Verfahren und Anordnung zum energiesparenden Betrieb von Spülmaschinen

Insbesondere für größere Betriebe, beispielsweise für Kantinen in Krankenhäusern oder Großbetrieben sowie im Bereich der medizinischen Desinfektion, spielt ein energiesparender Betrieb von Spülmaschinen (110; 410) eine wichtige Rolle. Es werden daher ein Verfahren und eine Vorrichtung vorgeschlagen, bei denen einer Gruppe von elektrischen Verbraucherelementen (14, 15, 18, 19, 22, 23, 26, 33; 418, 420, 432, 438) einer Spülmaschine (110; 410) eine maximale elektrische Gesamtleistung zugewiesen wird. Weiterhin werden jedem elektrischen Verbraucherelement (14, 15, 18, 19, 22, 23, 26, 33; 418, 420, 432, 438) dieser Gruppe mindestens zwei Leistungslevel zugewiesen. In einem Bedarfsermittlungsschritt wird dann abhängig von einem Betriebszustand B der Spülmaschine (119) eine optimale Kombination von Leistungslevels gewählt, wobei für jedes Verbraucherelement (14, 15, 18, 19, 22, 23, 26, 33; 418, 420, 432, 438) das gewählte Leistungslevel dem Leistungsbedarf des Verbraucherelements (14, 15, 18, ...

ELEKTRISCHES BUEGELEISEN.

DURCHLAUFERHITZER, INSBESONDERE ELEKTRO-WASSERHEIZER MIT WASSERMANGELSICHERUNG.

ELEKTROMAGNETISCHES SCHUTZRELAIS FUER ELEKTRISCHE HEIZWIDERSTANDE.

Heiz- und Temperaturmeßelement

Kraftfahrzeug

Kraftfahrzeug, umfassend eine Sitzheizung und ein dieser zugeordnetes Steuergerät (6), dadurch gekennzeichnet, dass das Steuergerät (6) zur Ermittlung der Belegung eines mittels der Sitzheizung beheizbaren Sitzes (2, 3) anhand des zeitlichen Verlaufs wenigstens eines das Aufheizverhalten der Sitzheizung kennzeichnenden Wertes ausgebildet ist.

EINRICHTUNG ZUR FEINSTUFIGEN ODER STUFENLOSEN REGELUNG DER WAERMEABGABE VON MIT WECHSELSTROM BETRIEBENEN ELEKTRISCHEN GERAETEN.

Schutzeinrichtung, Durchlauferhitzer und Fluidspeicher

Schutzeinrichtung (10) für ein fluidführendes Gerät (1) zum Schutz vor Fluidaustritt bei Beschädigung eines fluidführenden Geräteabschnitts (2, 38, 40), gekennzeichnet durch ein Absperrventil (12) zur Anordnung im Fluidzulauf (4) des Gerätes (1), das sich in einer Grundstellung in Schließstellung befindet, durch eine Bypassleitung (16) zum Herstellen einer Fluidverbindung stromaufwärts des Absperrventils (12) von dem Fluidzulauf (4) zum Fluidablauf (6) des Gerätes (1) parallel zum fluidführenden Geräteabschnitt (2, 38, 40), und durch ein Sperrventil (14) zur Anordnung stromaufwärts der Bypassleitung (16) in dem Fluidablauf (4) und das ein Abströmen des Fluids aus der Bypassleitung (16) in Richtung des beschädigten Geräteabschnitts (2, 38, 40) über den Fluidablauf (6) verhindert.

Vorrichtung zur Temperaturmessung an Kochstellen

Vorrichtung zur Temperaturmessung einer Kochstelle (1) aus Glaskeramik mit mindestens einem an der Kochstelle (1), insbesondere unmittelbar unterhalb der Kochstelle (1), angebrachten Sensor (2), der als Leiterbahn mit einem temperaturabhängigen elektrischen Widerstand und mit zwei äußeren Anschlussenden (3) ausgebildet ist, dadurch gekennzeichnet, – dass von der Leiterbahn zwei Messanschlüsse (4) abgezweigt sind und – dass die beiden Abzweigpunkte (5) für die Messanschlüsse einen zentralen Leitungsabschnitt (6) der Leiterbahn begrenzen, der sich innerhalb des zentralen Flächenbereichs der wirksamen Heizfläche einer Kochstelle befindet, und – dass zur Temperaturmessung an den beiden Messanschlüssen der Widerstand des zentralen Leitungsabschnittes messbar ist, – dass der Leiterbahnsensor (2) zur Kapazitätsmessung um ein Aufsetzten eines Kochtopfes auf die Kochstelle (1) zu erkennen und um die Stellung und Größe eines Kochtopfes auf der Kochstelle (1) zu bestimmen, von zwei kreissegmentförmigen ...

Electrical heating system for use in air conditioning system in motor vehicle to heat vehicle interior, has heating element control device comprising direct current/direct current transducer that regulates heat output of heating element

The system has an electrical heating device (1) i.e. electrical positive temperature coefficient auxiliary heater, with a positive temperature coefficient heating element that is attached to an energy source, and a device for stepless control of heating element. The heating element control device has a direct current/direct current transducer (20) that regulates heat output of the heating element. The direct current/direct current transducer is a buck converter or boost converter. A blowing out temperature regulator (19) supplies a correcting variable to the transducer. An independent claim is also included for a method for performing stepless control of an electrical heating device.

VERFAHREN UND VORRICHTUNG ZUR HEIZUNG EINES FAHRZEUGSITZES

Elektrischer Brotroester

SICHERHEITSVORRICHTUNG FÜR ELEKTRISCHES HEIZUNGSGERÄT

Controlled starter switch unit for vehicle electric devices - switches on second switch simultaneously with timed switch which stays active until voltage supply interrupt.

The switch unit (10) has an actuator button (11) for manually starting electric devices in motor vehicles, esp. for electric rear window heaters in cars. A timed switch unit (12) is arranged on a carrier board and can be directly connected to the button (11). This switches on the device (13) for a predetermined time interval after actuation of the button (11). At the same time as the switch unit (12) switches on, a further switch unit (14) is switched on. This stays in its active state until the supply voltage line (15) is interrupted. The active state of the time switch (12) can be switched off before the end of the time interval by pressing the button (11) again. ADVANTAGES - Two different switching functions can be carried out. Can be built in the same space as known single function switches. Simple and inexpensive to manufacture and increases safety for vehicle and user.

Verfahren zum Steuern eines Delta-T-Garprozesses

Verfahren zum Steuern eines Delta-T-Garprozesses, umfassend folgende Schritte: a) Auswählen einer Soll-Kerntemperatur KTs sowie eines Delta-T-Werts für ein zu garendes Gargut, b) Einbringen des Garguts mit einer anfänglichen Kerntemperatur KT0 in einen Garraum, c) Erhöhen der Ist-Garraumtemperatur GTa über ein erstes Zeitintervall (t < t1) in Abhängigkeit von der Ist-Kerntemperatur KTa in der Weise, daß eine gleichbleibende Differenz zwischen GTa und KTa der Größenordnung des Delta-T-Werts solange aufrechterhalten wird, bis GTa = KTs + A ist und somit einem Höchstwert GTa-r entspricht, wobei A einen Temperaturwert darstellt, der kleiner als Delta-T ist, und anschließend d) stufenweises und/oder kontinuierliches Verringern der Ist-Garraumtemperatur GTa auf eine End-Garraumtemperatur GTe = KTs + B während eines zweiten Zeitintervalls (t1 < t < t3), wobei B einen Temperaturwert darstellt mit 0 ≤ B < A, in der Weise, daß zu dem Zeitpunkt, bei dem GTa mit GTe übereinstimmt, KTa gleichzeitig.

Control system for continuous flow fluid heater

A potential scanning system (31, 32, 33) is provided for scanning the electrical potential of the heating coils (1a-1d). A second switching circuit (12, 16, 26) is used for the interruption of the heat energy supply to the heating coils and is coupled with the potential scanning system and the flow monitor (21-23). The second switching circuit interrupts the heating energy supply to the heating coils, if an electrical potential at the heating coils is established, whilst the vol. flow of the fluid fails to reach a specified min. value.

Zeitschaltgeraet,insbesondere fuer Elektro- oder Gasbackoefen

Energieregler eines Elektroherdes

Temperature controlled/limiting heating element for an electric cooking appliance

A temperature controlled/limiting heating element for an electrically powered cooking appliance, having: a plate with an upper contact heating surface; a pair of heating element terminals adapted for removably engaging electrical power supply terminals of the electrically powered cooking appliance; a plurality of resistive heating wires, in thermal engagement with a lower surface of the top plate, comprising: a non-cycling resistive heating wire connected in series to the heating element terminals; and a cycling resistive heating wire connected in series to the heating element terminals via a thermostat switch in thermal engagement with a lower surface of the top plate, wherein the thermostat switch is normally closed when exposed to a sensed temperature below a set temperature and the thermostat switch opens when the sensed temperature is equal to or exceeds the set temperature.

STOVETOP INTERFACE, SYSTEM AND METHODS OF TEMPERATURE CONTROL OF COOKWARE, AND METHODS OF COOKING USING NUMERICAL TEMPERATURE CONTROL

A temperature control interface for a stove top is provided. The temperature control interface includes a numerical temperature setting to which a temperature of an object heated on the stovetop will be regulated for a predetermined period of time. A method of cooking on a stovetop is provided in which a recipe includes a numerical temperature to which a cookware object should be regulated during cooking for a predetermined period of time. 1. A temperature control interface for a stovetop comprising:a temperature control selector for manually selecting a temperature;a numerical temperature setting displayed on a temperature control interface;a temperature sensor to measure the temperature of a cookware object placed on a stovetop hob; anda processor to control the power of said stovetop hob to regulate the temperature of said cookware object placed on said stovetop hob for a predetermined period of time.2. The temperature control interface as claimed in further comprising:a processor to control the power of said stovetop hob to regulate the temperature of said cookware object placed on said stovetop hob for a second predetermined period of time.3. The temperature control interface as claim in further comprising:a timing control selector for manually selecting said predetermined period of time.4. The temperature control interface as claim in further comprising:a timing control selector for manually selecting said second predetermined period of time.5. The temperature control interface as claimed in wherein said processor controls the power of said stovetop hob to regulate the temperature of said cookware object placed on said stovetop hob for a predetermined period of time at a first predetermined temperature.6. The temperature control interface as claimed in wherein said processor controls the power of said stovetop hob to regulate the temperature of said cookware object placed on said stovetop hob for said second predetermined period of time at a second ...

COOKING HOB WITH A BALANCE SYSTEM AND A METHOD FOR ADJUSTING THE TEMPERATURE OF A COOKING VESSEL

The present invention relates to a cooking hob () including at least two cooking zones () and a balance system for adjusting the temperature of a cooking vessel () after said cooking vessel () has been moved from a first cooking zone () to a second cooking zone (). The cooking zones () comprise or correspond with a vessel recognition device in each case. The cooking hob () includes a sensor device for detecting the temperature of the first cooking zone (). The balance system is provided for activating a boosted power level () at the second cooking zone () for an estimated time in order to compensate the energy loss (Qs) of the cooking vessel () during setting said cooking vessel () on the second cooking zone (). The boosted power level () is estimated on the basis of a pre-set power level () of the second cooking zone (), the temperature of the first cooking zone () before the cooking vessel () has been set on the second cooking zone () and an estimated time for activating the boosted power level (). Further, the present invention relates to a method for adjusting the temperature of a cooking vessel () on a cooking hob (), after said cooking vessel has been moved from one cooking zone () to another cooking zone (). 110161820201618. A cooking hob () including at least two cooking zones ( , ) and a balance system for adjusting the temperature of a cooking vessel () after said cooking vessel () has been moved from a first cooking zone () to a second cooking zone () , wherein:{'b': 16', '18, 'the cooking zones (, ) comprise or correspond with a vessel recognition device in each case,'}{'b': 10', '16', '30', '18', '20', '20', '18', '30', '28', '18', '18', '20', '30, 'the cooking hob () includes a sensor device for detecting the temperature of the first cooking zone (), the balance system is provided for activating a boosted power level () at the second cooking zone () for an estimated time in order to compensate the energy loss (Qs) of the cooking vessel () during ...

AUTOMATIC SAFETY DEVICE AND METHOD FOR A STOVE

Device and method are described for operational control of a knob on a stove or range. In some examples, a safety device, a sensor relay device, and method are described for automatically positioning an operational shaft of a burner to an Off position such that the power supplied to the burner is terminated upon the occurrence of a safety event. 1. A device for operational control of a burner , the device comprising:a fixed base member;a motor member configured to be attached to an operational shaft of the burner; anda controller configured to control rotation of the motor member to cause rotation of the operational shaft of the burner in response to a signal caused by a sensor.2. The device of claim 1 , wherein the motor member comprises:a gear train configured to engage the fixed base member; anda motor connected to the gear train; andwherein the controller is configured to control rotation of the motor to turn the gear train and cause rotation of the operational shaft of the burner in response to a signal caused by the sensor.310-. (canceled)11. The device of claim 1 , wherein the motor member is configured to be removably attached to the operational shaft of the burner.12. (canceled)13. The device of claim 1 , wherein the motor member is integrated with the operational shaft of the burner.14. The device of claim 13 , wherein the burner and the operational shaft of the burner are manufactured to include the integrated motor member and fixed base member.1525-. (canceled)26. The device of claim 1 , wherein the controller is configured to cause the motor member to turn the operational shaft of the burner to an Off position claim 1 , and wherein the controller is configured to receive the signal and turn the burner to the Off position in response to the signal.27. (canceled)28. The device of claim 26 , wherein the signal is a hazard detected signal.2956-. (canceled)57. A system for operational control of a burner claim 26 , the system comprising: a fixed base member ...

DUAL COIL ELECTRIC HEATING ELEMENT

An embodiment of an electric heating element is disclosed, including an electrically resistive inner heating element, an electrically resistive outer heating element, and a thermostat positioned underneath a centrally-positioned medallion and along a cold leg of the inner heating element. The thermostat is configured to selectively allow electrical current to be delivered to the inner heating element while maximum electrical current, for example, continues to be provided to the outer heating element. The thermostat cycles the electrical current on and off when detecting maximum and minimum desired temperatures radiated from the electric heating element. The inner heating element has a pair of cold legs that extend parallel to a pair of cold legs of the outer heating element, some or all of which may be supported by a terminal bracket. 1. An electric heating element , comprising:an electrically resistive inner heating element including an inner coiled heating portion and first and second cold legs extending from and underneath the inner coiled heating portion for connection to an electrical power source; the first, second, third and fourth cold legs are parallel to the common plane,', 'the third cold leg is positioned adjacent to and directly above the first cold leg and the second cold leg is positioned between the third and fourth cold legs,', 'the second cold leg lies along a central plane of the electric heating element that is perpendicular to the common plane, and', 'the inner heating element is electrically wired in parallel with the outer heating element, wherein first and second conductors extending from the respective first and second cold legs are electrically joined with respective third and fourth electrical conductors extending from the respective third and fourth electrical conductors, wherein the third and fourth electrical conductors are configured for engaging with an appliance electrical receptacle having a single pair of electrical conductor ...

Cooking Hob and Operation Method Thereof

A method () for operating a cooking hob () is proposed. The cooking hob comprises at least a first () and a second () cooking zones and a control unit () configured for controlling the first and second cooking zones. The method comprises the following steps executed by the control unit. A pan (P) containing food to be cooked is associated () to the first cooking zone; a food temperature sensor (Ts) is associated () to the first cooking zone, the food temperature sensor being configured to be in direct contact with the food to be cooked and to communicate to the control unit an indication of the food temperature; a power level of the first cooking zone is automatically adjusted () according to a cooking recipe (CR) and to the current food temperature provided by the food temperature sensor; food movement from the first cooking zone to the second cooking zone is inferred (-----) based on a de-association () of the food temperature sensor from the first cooking zone and a re-association () of the food temperature sensor to the second cooking zone; and the power level of the second cooking zone is automatically adjusted () according to the cooking recipe and to the current food temperature provided by the food temperature sensor, starting from a progress status of the cooking recipe at the first cooking zone before moving the food. 1. A method for operating a cooking hob comprising at least a first and a second cooking zones and a control unit configured for controlling the first and second cooking zones , the method comprising the following steps executed by the control unit:associating a pan containing food to be cooked to the first cooking zone,associating a food temperature sensor to the first cooking zone, the food temperature sensor being configured to be in direct contact with the food to be cooked and to communicate to the control unit an indication of the food temperature,automatically adjusting a power level of the first cooking zone according to a cooking ...

Electric Grill With Current Protection Circuitry

Provided is an apparatus and method for protecting against unsafe electric current conditions. A protections circuit may be used in a device, as an electric grill, that has one or more electric loads, such as heating elements. The protection circuit may protect against various failure scenarios, including, without limitation, instances of ground fault, over current, driver failure, and failure of a microprocessor. In response to a failure, the protection circuit may trip a latch relay or disable a triac driver to stop current from flowing. 1. A circuit , comprising:a first and second heating element connected to a voltage line through a first and second triac, respectively, and further connected to a neutral line;at least one latch connected between the heating elements and the voltage line, the latch being connected to a trip controller through a control line;a current transformer configured to measure a difference in current between the voltage line and the neutral line and connected through a control line to a ground fault detection unit;a control line connecting the ground fault detection unit and the trip controller; anda microprocessor connected to a first triac driver and a second tone driver; the first and second triac drivers being respectively connected to the first and second triacs, respectively.2. The circuit of claim 1 , further comprising at least one Hall Effect sensor connected to measure current in the voltage line claim 1 , said Hall Effect sensor being in communication with the microprocessor.3. The circuit of claim 2 , wherein the microprocessor is configured to disable at least one triac driver in response to a current reading from a Hall Effect sensor which exceeds a predetermined current threshold.4. The circuit of claim 3 , further comprising a watchdog monitor connected to the microprocessor and further connected to the first and second triacs.5. The circuit of claim 4 , further comprising a first and second thermocouple proximately located ...

Cooking Appliance and Method for Limiting Cooking Utensil Temperatures Using Dual Control Modes

Cooking appliances and methods for operating cooking appliances are provided. In one exemplary embodiment, a method for operating a cooking appliance is provided. The method includes providing power to the heating source according to a first control mode; determining whether to transition from the first control mode to a second control mode and, if so, then providing power to the heating source according to the second control mode. The method further includes determining whether to transition to the first control mode and, if so, then returning to providing power to the heating source according to the first control mode. The cooking appliances and methods include features for limiting cooking utensil temperatures using dual control modes. 1. A method for operating a cooking appliance , the method comprising:providing power to the heating source according to a first control mode; providing power to the heating source according to the second control mode;', 'returning to providing power to the heating source according to the first control mode.', 'determining whether to transition to the first control mode and, if so, then'}], 'determining whether to transition from the first control mode to a second control mode and, if so, then'}2. The method of claim 1 , wherein the first control mode utilizes a non-linear proportional control algorithm.3. The method of claim 2 , wherein the first control mode utilizes a temperature of a cooking utensil positioned on the heating source.4. The method of claim 3 , wherein a temperature sensor contacts a bottom surface of the cooking utensil to sense the temperature of the cooking utensil.5. The method of claim 3 , wherein determining whether to transition to the second control mode comprises comparing the temperature of the cooking utensil to a target temperature limit.6. The method of claim 1 , wherein determining whether to transition to the second control mode comprises comparing a timer to a threshold time interval.7. The method ...

Method and apparatus for supplying power to a radiant heating element

In order to supply power to a radiant heating element, which is connected at a first connection, via a triac, to a first terminal of a supply voltage source and at a second connection, with a relay, to a second terminal of the supply voltage source, wherein an interference suppression capacitor is connected in parallel with the series circuit by the triac and the radiant heating element and a feedback circuit is connected between the triac and the radiant heating element, after disconnection of the radiant heating element from the second terminal, the interference suppression capacitor is now only connected to the second terminal via the feedback circuit. Depending on the time of the disconnection from the second terminal and the polarity of the supply voltage present at that time, the interference suppression capacitor is discharged via the feedback circuit, which results in discharge pulses at the feedback circuit which are taken as a signal that the radiant heating element is disconnected from the supply voltage source.

HEATING ELEMENT CONTROL CIRCUIT

A power control circuit includes first and second electrical power terminals connected across a source of electrical power. A heating element is connected to the first terminal. A heating element controller is connected in series with the heating element, between the heating element and the second terminal. The controller is configured to control a temperature level of the element, and includes a control input configured to receive a range of temperature settings, and an OFF command for the element. The controller includes an ON/OFF switch to disconnect the element from the second terminal, and a temperature level control switch to intermittently connect/disconnect the element to the second terminal. A jumper wire series-connects the ON/OFF switch to the temperature level control switch. The ON/OFF switch, the jumper wire, the temperature level control switch, and the element are electrically connected in series.

TEMPERATURE CONTROL FOR BURNER OF A COOKING APPLIANCE

A top cooking appliance is provided having a cooktop with a surface heating unit and a thermally-responsive control device that can include a temperature-sensing thermal switch for controlling the operation of the surface heating unit. When the thermal switch senses that the cooking temperature exceeds a first, predetermined upper threshold temperature, the device can cause an interruption in the operation of the surface heating unit. The thermally-responsive control device can then restore the operation of the surface heating unit when the thermal switch senses that the cooking temperature falls below a second predetermined, lower threshold temperature. The thermally-responsive control device for cooktop burners of the present disclosure can be incorporated in both electric and gas-operated top cooking appliances. 1. An electric cooking appliance , comprising:a thermally-conductive cooktop having an outer perimeter, an upper surface, a lower surface, and an opening therethrough;a surface heating unit comprising an electric coil heating element and a drip pan positioned below the electric coil heating element, the surface heating unit being disposed in the opening;a power terminal mounted to the lower surface of the cooktop near the surface heating unit, the electric coil heating element being electrically connected in series to the power terminal;a temperature sensing electrical switch electrically connected in series with the power terminal and the electric coil heating element; andwherein the temperature sensing electrical switch is mounted against the lower surface of the cooktop, wherein the temperature sensing electrical switch is operable to sense a temperature of the cooktop and to interrupt the electrical connection to one of the power terminal and the electric coil heating element when the temperature of the cooktop is at a first upper threshold and to restore the electrical connection to one of the power terminal and the electric coil heating element when ...

INDUCTION-HEATING COOKING APPARATUS

Disclosed herein is an induction-heating cooking apparatus that includes a sensing circuit for controlling an output of a heating coil, and more specifically, to an induction-heating cooking apparatus capable of enhancing accuracy in measuring electric currents of a heating coil by simply modifying a circuit. The induction-heating cooking apparatus includes a control unit calculating an output of a heating coil on the basis of electric currents measured by a sensor supplying alternating current power. 1. An induction-heating cooking apparatus , comprising:a power supply configured to supply alternating current power;a rectifier configured to rectify the alternating current power supplied by the power supply;a filter configured to filter the power rectified by the rectifier;a first driving circuit including first switches that are selectively activated to regulate a supply of the power filtered by the filter to a first heating coil, and a first resistor provided between the filter and the first switches;a sensor configured to measure first electric currents flowing through the first resistor; anda controller configured to calculate an output of the first heating coil based on the first electric currents measured by the sensor.2. The induction-heating cooking apparatus of claim 1 , further comprising a second driving circuit including second switches that are selectively activated to regulate a supply of the power filtered by the filter to a second heating coil different from the first heating coil claim 1 , and a second resistor provided between the filter and the second switch unit claim 1 , wherein:the sensor is configured to measure second electric currents flowing through the second resistor, andthe controller is further configured to calculate an output of the second heating coil based on the second electric currents measured by the sensor.3. The induction-heating cooking apparatus of claim 2 , wherein the first driving circuit and the second driving circuit are ...

VAPORIZER WITH COVER SLEEVE

A vaporizer may include a battery portion, a cartomizer connectable with the battery portion, and a sleeve fitable over the cartomizer. The sleeve and an outer shell of the battery portion may have the same or complimentary colors or patterns. The battery portion may further include a plurality of illuminable indicators, which may illuminate to indicate, for instance, remaining voltage of a battery housed within the battery portion. 1. A vaporizer comprising: a battery,', 'a printed circuit board, including a microcontroller for operating a program to control the vaporizer,', 'a pressure switch operable to detect a pressure differential generated when the airflow is established,', 'at least one illuminable indicator which illuminates in association with charge remaining of the battery, and', 'electronic circuitry housed within the outer shell, the electronic circuitry electrically connecting the battery, the printed circuit board, the pressure switch, and the at least one illuminable indicator; and, 'a battery portion including an outer shell having an outer shell diameter, a plurality of holes thereby permitting airflow to be established through at least a section of the battery portion, and internal components housed within the outer shell, the internal components including'} a heating element electrically connected with the electronic circuitry of the battery portion when the cartomizer and the battery portion are connected, the heating element operable to heat to a vaporization temperature when a current is passed along the heating element,', 'a storage component for holding a vaporizable fluid, and', 'a tube in fluid communication between the airflow of the battery portion and a mouthpiece provided on the cartomizer outer shell., 'a cartomizer including a cartomizer outer shell having a cartomizer outer shell diameter substantially similar to the outer shell diameter, the cartomizer connectable with the battery portion, the cartomizer including internal ...

METHOD OF OPTIMIZING USE OF COOKTOP AND COOKTOP WITH OPTIMIZATION

A method of optimizing performance of a cooktop with a plurality of adjacent heating zones includes indicating a point for each heating zone; placing a cooking vessel on the cooktop, the cooking vessel being sufficiently large to cover at least two of the points simultaneously; and adjusting the cooking vessel so that the cooking vessel covers the maximum number of the points possible for the size of the cooking vessel. A cooktop includes at least three induction heating elements; and a persistent indicator for each heating element. The cooktop is adapted to instruct a user to cover a maximum possible number of the at least three persistent indicators with a cooking vessel to optimize use of the cooktop. 1. A method of optimizing performance of a cooktop including a plurality of adjacent heating zones , the method comprising:indicating a point for each heating zone;placing a cooking vessel on the cooktop, the cooking vessel being sufficiently large to cover at least two of the points simultaneously; andadjusting the cooking vessel so that the cooking vessel covers the maximum number of the points possible for the size of the cooking vessel.2. The method according to claim 1 , wherein the plurality of adjacent heating zones includes at least three heating zones.3. The method according to claim 1 , wherein the plurality of adjacent heating zones consists of four heating zones.4. The method according to claim 1 , wherein the size of the cooking vessel can cover at least three of the points simultaneously.5. The method according to claim 1 , wherein the size of the cooking vessel cannot cover each of the points simultaneously.6. The method according to claim 1 , wherein the size of the cooking vessel can cover at least three of the points simultaneously and the size of the cooking vessel cannot cover each of the points simultaneously.7. The method according to claim 1 , wherein each heating zone is a separate induction heater.8. The method according to claim 1 , wherein ...

COOKING CONTAINER SENSING FOR IGNITION TRIGGERING AND PROGRAMMED COOKING

A cooking appliance such as a range or stovetop incorporates cooking container sensing for controlling burner ignition and/or triggering events in programmed cooking sequences. 1. A cooking appliance , comprising:a gas burner including an igniter;a sensor configured to detect a presence of a cooking container on the gas burner;a gas valve in fluid communication with the gas burner;a controller coupled to the sensor, the gas valve, and the igniter, the controller configured to:in response to detecting the presence of the cooking container on the gas burner with the sensor, wait a predetermined period of time for a user input to activate the gas burner; andin response to receiving the user input prior to an end of the predetermined period of time, control the gas valve and the igniter to ignite the gas burner.2. The cooking appliance of claim 1 , further comprising a user interface associated with the gas burner and coupled to the controller claim 1 , wherein the user input is received by the user interface.3. The cooking appliance of claim 2 , wherein the user interface comprises a touch-sensitive knob claim 2 , and wherein the user input comprises a user touching the touch-sensitive knob claim 2 , or turning the touch-sensitive knob.4. The cooking appliance of claim 2 , wherein the user interface comprises a dedicated control selector claim 2 , and wherein the user input comprises a user actuating the dedicated control selector.5. The cooking appliance of claim 2 , wherein the user interface comprises a digital camera claim 2 , and wherein the user input comprises a gesture by a user sensed by the digital camera.6. The cooking appliance of claim 2 , wherein the user interface comprises a microphone claim 2 , and wherein the user input comprises a voice command by a user.7. The cooking appliance of claim 2 , wherein the user interface comprises an application on a mobile device claim 2 , and wherein the user input comprises a user actuating the application on the ...

TEMPERATURE CONTROLLING DEVICE FOR AN APPLIANCE HEATING ELEMENT

A burner element for a cooktop includes a heat source for providing heat to a cooking zone positioned above the heat source and an automatic thermostat switch in communication with the cooking zone and the heat source. The automatic thermostat switch senses an actual temperature of the cooking zone, and when the actual temperature reaches a predetermined maximum temperature the automatic thermostat switch moves to an open position defined by the automatic thermostat switch at least partially impeding the heat source. The open position of the automatic thermostat switch is further defined by a decrease in the actual temperature of the cooking zone from approximately the predetermined maximum temperature to a control temperature. When the actual temperature of the cooking zone reaches the control temperature the automatic thermostat switch defines a closed position, wherein the automatic thermostat switch is substantially free of impeding the heat source. 1. A burner element for a cooktop , the burner element comprising:a heat source for providing heat to a cooking zone positioned above the heat source;an automatic thermostat switch in communication with the cooking zone and the heat source, wherein the automatic thermostat switch senses an actual temperature of the cooking zone, and wherein when the actual temperature reaches a predetermined maximum temperature the automatic thermostat switch moves to an open position defined by the automatic thermostat switch at least partially impeding the heat source, wherein the open position of the automatic thermostat switch is further defined by a decrease in the actual temperature of the cooking zone from approximately the predetermined maximum temperature to a control temperature, and wherein when the actual temperature of the cooking zone reaches the control temperature the automatic thermostat switch defines a closed position, wherein the automatic thermostat switch is substantially free of impeding the heat source.2. The ...

Isothermal Cooking Plate Apparatus, System, and Method of Manufacture and Use

An isothermal cooking plate assembly is formed from a first plate of high thermal conductivity material having a back surface and an oppositely disposed top cooking surface. One or more heater circuit assemblies are disposed on the first plate back surface for forming a composite having a back surface. A controller is in electrical connection with the heater circuit assemblies for controlling temperature of the first plate of high thermal conductivity material. The first plate can be substantially pure one or more aluminum, substantially pure copper, or aluminum nitride. The first plate can be a laminate formed from a clad bottom metal layer and clad top cooking surface metal layer, where the clad layers formed from the same material and having about the same thickness. The clad material can be austenitic stainless steel. A second plate of low thermal conductivity material can be attached to the composite back surface. 1. An isothermal cooking plate assembly comprising:(a) a first plate of high thermal conductivity material having a back surface and an oppositely disposed top cooking surface;(b) one or more heater circuit assemblies disposed on the first plate back surface for forming a composite having a back surface; and(c) a controller in electrical connection with said one or more heater circuit assemblies for controlling temperature of said first plate of high thermal conductivity material.2. The isothermal cooking plate assembly of claim 1 , wherein said first plate comprises substantially pure one or more aluminum claim 1 , substantially pure copper claim 1 , or aluminum nitride.3. The isothermal cooking plate assembly of claim 1 , wherein the first plate comprises a laminate comprising a clad bottom metal layer and clad top cooking surface metal layer claim 1 , said clad layers formed from the same material and having about the same thickness.4. The isothermal cooking plate assembly of claim 3 , wherein said clad material comprises austenitic stainless steel ...

Cooktop appliance and temperature switch

A cooktop appliance is generally provided herein. The cooktop appliance may include a cooktop panel, an electric heating element, a ferromagnetic tab, and a magnetic temperature switch. The electric heating element may be positioned at the cooktop panel. The electric heating element may include a first terminal and a second terminal. The ferromagnetic tab may be in thermal engagement with the electric heating element. The magnetic temperature switch may be positioned in selective magnetic engagement with the ferromagnetic tab. The magnetic temperature switch may be electrically connected in series with the second terminal and operable to restrict a voltage to the electric heating element above a predetermined temperature.

VAPORIZER WITH COVER SLEEVE

A vaporizer may include a battery portion, a cartomizer connectable with the battery portion, and a sleeve fitable over the cartomizer. The sleeve and an outer shell of the battery portion may have the same or complimentary colors or patterns. The battery portion may further include a plurality of illuminable indicators, which may illuminate to indicate, for instance, remaining voltage of a battery housed within the battery portion. 1. A vaporizer comprising: a battery,', 'a printed circuit board, including a microcontroller for operating a program to control the vaporizer,', 'a pressure switch operable to detect a pressure differential generated when the airflow is established,', 'at least one illuminable indicator which illuminates in association with charge remaining of the battery, and', 'electronic circuitry housed within the outer shell, the electronic circuitry electrically connecting the battery, the printed circuit board, the pressure switch, and the at least one illuminable indicator; and, 'a battery portion including an outer shell having an outer shell diameter, a plurality of holes thereby permitting airflow to be established through at least a section of the battery portion, and internal components housed within the outer shell, the internal components including'} a heating element electrically connected with the electronic circuitry of the battery portion when the cartomizer and the battery portion are connected, the heating element operable to heat to a vaporization temperature when a current is passed along the heating element,', 'a storage component for holding a vaporizable fluid, and', 'a tube in fluid communication between the airflow of the battery portion and a mouthpiece provided on the cartomizer outer shell., 'a cartomizer including a cartomizer outer shell having a cartomizer outer shell diameter substantially similar to the outer shell diameter, the cartomizer connectable with the battery portion, the cartomizer including internal ...

ELECTRONIC SMOKING APPARATUS AND FLAVOURED VAPOUR GENERATING APPARATUS

A flavored vapor generator () used for an electronic smoking apparatus () comprises a housing; a liquid retention material () which is filled, soaked or immersed with a flavored liquid and received inside the housing; an electric heater () for heating the liquid retention material () to generate flavored vapor; and a sensor () for monitoring soaking or wetness conditions of the liquid retention material () and providing signals for determining whether the flavored liquid in the liquid retention material () is exhausted or almost exhausted. 1. A flavoured vapour generating apparatus comprising a liquid retention device which comprises fibrous liquid retention materials for retaining a flavoured liquid , a liquid reservoir to supply a flavoured liquid to the fibrous liquid retention materials of the liquid retention device , a converter which is operable by electrical power to convert flavoured liquid on the fibrous liquid retention materials into flavoured vapour , and a sensor; wherein the sensor is arranged to provide information on the amount or density of flavoured liquid being retained on the fibrous liquid retention materials.2. A flavoured vapour generating apparatus according to claim 1 , wherein the liquid reservoir includes a reservoir housing that defines an axially extending hollow passage channel claim 1 , and the hollow passage channel is to provide a passage path for flavoured vapour generated by operation of the converter to move out of the apparatus along an axial direction; wherein a first liquid outlet in liquid communication with the passage channel is formed on the housing of the liquid reservoir to supply flavoured liquid to the fibrous liquid retention materials; and wherein the fibrous liquid retention materials project transversely into the passage channel.3. A flavoured vapour generating apparatus according to claim 2 , wherein a second liquid outlet in liquid communication with the passage channel is formed on the housing of the liquid ...

COOKING CONTAINER SENSING FOR IGNITION TRIGGERING AND PROGRAMMED COOKING

A cooking appliance such as a range or stovetop incorporates cooking container sensing for controlling burner ignition and/or triggering events in programmed cooking sequences. 1. A method of controlling a cooking appliance comprising:detecting with a sensor a change in presence of a cooking container on a burner of the cooking appliance; andtriggering an action in a programmed cooking sequence in response to detecting the change in presence of the cooking container on the burner with the sensor.2. The method of claim 1 , further comprising claim 1 , with the controller:detecting placement of the cooking container on the burner with the sensor;waiting a predetermined period of time for user input to activate the burner;controlling a gas valve and an igniter for the burner to ignite gas supplied by the gas valve to the burner in response to receiving the user input prior to an end of the predetermined period of time; andignoring user input received after the predetermined period of time such that the gas valve is not opened and the igniter is not actuated in response to the user input received after the predetermined period of time.3. The method of claim 1 , wherein the change in presence is placement of the cooking container on the burner claim 1 , and wherein the action includes:verifying the correct cooking container is used;indicating to the user about what to put in the cooking container;turning on a timer; ormoving to a next step in the programmed cooking sequence.4. The method of claim 1 , wherein the change in presence is removal of the cooking container from the burner claim 1 , and wherein the action includes:alerting the user about the time elapsed;indicating to the user about what to do next;turning off the burner; orturning on or off the timer.5. A method of controlling a cooking appliance comprising:detecting placement of one or more cooking containers on one or more burners;waiting a predetermined period of time for one or more user inputs to activate ...

Heating Plate with Cooking Oil Ignition Prevention for Electric Cooking Apparatus

An electric heating plate for electric cooking apparatuses is provided with the capability to prevent unintended ignition of cooking oil. The heating plate includes an electric heating conductor as the heat source and a temperature controller electrically connected with the heating conductor, sensing the temperature of the cooking vessel, controlling the heating plate output power, and limiting the temperature of the cooking oil in the cooking vessel. With this heating plate, the electric cooking apparatus will be able to prevent cooking oil ignition during cooking, while the minimum cooking temperature for a daily cooking is still maintained. 1. A heating plate for electric cooking apparatuses , comprising:an electric heating conductor; the temperature controller, comprising:', 'a temperature transfer device (the device), touching the cooking vessel for transferring temperature of the cooking vessel to the control unit, and', the control unit compares the transferred temperature with predetermined upper and lower temperature limits derived from an established relationship between the transferred temperature and the cooking oil temperature during cooking, whereby, under the rated power of the heating plate,', 'when the transferred temperature reaches the upper temperature limit, the control unit reduces output power of the heating plate, and', 'the cooking oil temperature within the cooking vessel is limited in a controlled cycle and kept below the cooking oil ignition point while still maintains the minimum temperature for daily cooking.', 'when the transferred temperature reaches the lower temperature limit, the control unit increases output power of the heating plate, such that'}], 'a control unit for adjusting the output power of the heating plate;'}], 'a temperature controller installed on the heating plate and electrically connected with the heating conductor;'}2. The heating plate according to claim 1 , wherein the upper temperature limit is determined based ...

COOKING APPLIANCES HAVING IMPROVED HEATING ELEMENT OPERATION

Cooking appliances are provided. A cooking appliance includes a cooktop including at least one heating element assembly which includes a first heating element, a second heating element, and a third heating element. The cooking appliance further includes an energy regulator coupled to the heating element assembly and operable to selectively activate the first, second and third heating elements in an activation pattern. During a first segment of the activation pattern the first heating element is active and the second and third heating elements are inactive. During a second segment of the activation pattern the first and second heating elements are active and the third heating element is inactive. During a third segment of the activation pattern the first, second and third heating elements are active for a first portion and the first and second heating elements are active and the third heating element is inactive for a second portion. 1. A cooking appliance , comprising:a cooktop comprising at least one heating element assembly, the at least one heating element assembly comprising a first heating element, a second heating element, and a third heating element; andan energy regulator coupled to the heating element assembly and operable to selectively activate the first heating element, second heating element, and third heating element in an activation pattern,wherein during a first segment of the activation pattern the first heating element is active and the second heating element and third heating element are inactive, during a second segment of the activation pattern the first heating element and second heating element are active and the third heating element is inactive, and during a third segment of the activation pattern the first heating element, second heating element and third heating element are active for a first portion and the first heating element and second heating element are active and the third heating element is inactive for a second portion.2360. The ...

Isotherm Cooking Plate Apparatus, System, and Method of Manufacture

An isothermal cooking plate assembly is formed from a first plate of high thermal conductivity material having a back surface and an oppositely disposed top cooking surface. One or more heater circuit assemblies are disposed on the first plate back surface for forming a composite having a back surface. A controller is in electrical connection with the heater circuit assemblies for controlling temperature of the first plate of high thermal conductivity material. The first plate can be Aluminum Type 1100 or Aluminum Type 6061. The first plate can be a laminate formed from a clad bottom metal layer and clad top cooking surface metal layer, where the clad layers formed from the same material and having about the same thickness. The clad material can be austenitic stainless steel. A second plate of low thermal conductivity material can be attached to the composite back surface of first plate. 15010. An isothermal cooking plate assembly () mechanically attached within a griddle system () and comprising:{'b': 52', '159', '28, '(a) a first plate () of high thermal conductivity material comprising aluminum whose thickness is substantially uniform, having a thermal conductivity of at least 1.67 watts/cm-C, a surface area of not greater than 54 square inches, a length-to-width aspect ratio that does not exceed about 1.5, a thickness in the range of 0.187 to 0.250 inches, and having a back surface () and an oppositely disposed top food-cooking surface ();'}{'b': 130', '159, 'claim-text': [{'b': 141', '159, 'sub': dielectric', 'dielectric', 'dielectric, 'claim-text': {'br': None, 'i': t', '*E', 'k', '/{Q', '/A, 'sub': dielectric', 'dielectric', 'dielectric', 'dielectric', 'dielectric', 'heater', 'heater, '=[{σ*(1−μ)}/{α}]*[}],'}, '(i) a first electrically insulative layer () disposed on the first plate back surface () having a thickness that does not exceed a maximum allowed thickness, tof the glass thick-film printed and fired first electrically insulative layer, the maximum ...

METHOD FOR OPERATING AN APPLIANCE IN A SABBATH OPERATING MODE

A method for operating an appliance. The method includes establishing a current date and time of day and automatically shifting the appliance to a Sabbath operating mode when the current date and time of day is Sabbath. A related appliance having a controller that is configured for automatically shifting the appliance to a Sabbath operating mode when a current date and time of day of a clock corresponds to Sabbath is also provided. 1. A method for operating an appliance , comprising:establishing a current date and time of day in a controller of the appliance; andautomatically shifting the appliance to a Sabbath operating mode with the controller of the appliance when the current date and time of day in the controller of the appliance is Sabbath.2. The method of claim 1 , further comprising connecting the appliance a network claim 1 , said step of establishing comprising receiving the current date and time of day from the network at the controller of the appliance.3. The method of claim 2 , wherein said step of establishing comprises receiving the current date and time of day from a standard time service at the controller of the appliance via the network.4. The method of claim 2 , wherein said step of establishing comprises synchronizing a real time clock of the controller of the appliance with the current date and time of day from the network.5. The method of claim 1 , wherein said step of establishing comprises manually entering the current date and time of day with a user input of the appliance.6. The method of claim 1 , further comprising automatically adjusting the appliance to a non-Sabbath operating mode with the controller of the appliance when the current date and time of day in the controller of the appliance is not Sabbath.7. The method of claim 1 , wherein said step of automatically shifting comprises automatically shifting the appliance to the Sabbath operating mode with the controller of the appliance when the current date and time of day in a real time ...

INDUCTION HEATING COOKING APPARATUS

An induction heating cooking apparatus capable of performing wireless communication with an external apparatus includes a heating unit that inductively heats an object to be heated and a driving circuit that outputs electric power to the heating unit. Electric power output from the driving circuit during a period of time in which the wireless communication with the external apparatus is performed is less than electric power output from the driving circuit during a period of time in which the wireless communication with the external apparatus is not performed. 116-. (canceled)17. An induction heating cooking apparatus capable of performing wireless communication with an external apparatus , the induction heating cooking device used for heating an object to be heated , the induction heating cooking device comprising:a heating unit to inductively heat the object to be heated;a driving circuit to output electric power to the heating unit; anda controller to perform control for setting the electric power output from the driving circuit to a value smaller than a command value in a first period and to perform control for setting the electric power output from the driving circuit to a value larger than the command value in a second period, and whereinthe first period is a period of time in which the wireless communication with the external apparatus is performed, and the second period is a period of time in which the wireless communication with the external apparatus is not performed.18. An induction heating cooking apparatus capable of performing wireless communication with an external apparatus , the induction heating cooking device used for heating an object to be heated , the induction heating cooking device comprising:a heating unit to inductively heat the object to be heated;a driving circuit to output electric power to the heating unit; anda controller to, when wireless communication is periodically performed between the induction heating cooking apparatus and the ...

COOKING APPLIANCE AND CONTROL METHOD OF THE SAME

A cooking appliance is disclosed. The cooking appliance includes an electric heater for heating an object to be cooked, a mechanical manipulation unit connected to the electric heater for allowing a user to input primary ON/OFF of the electric heater and power of the electric heater, a normal open type DC relay connected to the manipulation unit, and a controller for controlling the DC relay to control secondary ON/OFF of the electric heater based on sensing of a primary ON state of the electric heater by the manipulation unit (a state in which the manipulation unit is operated). 1. A cooking appliance comprising:an electric heater configured to generate heat for cooking;a mechanical manipulation unit that is electrically connected to the electric heater, the mechanical manipulation unit being configured to be manipulated by a user to control a primary ON/OFF state and a power level of the electric heater;a normally open type DC relay that is electrically connected to the mechanical manipulation unit; anda controller that is configured to, based on the mechanical manipulation unit controlling the electric heater to be in the primary ON state, control a secondary ON/OFF state of the electric heater via the DC relay,wherein the electric heater is configured to be activated based on both the primary and secondary states being controlled to be ON.2. The cooking appliance according to claim 1 , wherein the mechanical manipulation unit is configured to control the power level of the electric heater based on the electric heater being activated.3. The cooking appliance according to claim 2 , wherein the mechanical manipulation unit is configured to increase a duty ratio of the electric heater based on an increase of an angle input by the user.4. The cooking appliance according to claim 1 , further comprising:a child lock input unit configured to restrict a specific user from using the cooking appliance by setting a child lock, whereinthe controller is configured to control ...

Cooker

There is provided a cooker having at least one heating element (). The cooker also has a supporting structure for supporting a cooking vessel above the heating element () and a bi-metallic element (). The bi-metallic element () drives the heating element () to move based on a temperature of the bi-metallic element (). 1100. A cooker () comprising:{'b': '200', 'a heating element ();'}{'b': 210', '104', '200, 'a supporting structure () for supporting a cooking vessel () above the heating element (); and'}{'b': '202', 'a bi-metallic element (),'}{'b': 202', '200', '202, 'the bi-metallic element () being arranged to drive the heating element () to move based on the temperature of the bi-metallic element ().'}2100300302304202200202202200202. A cooker () according to claim 1 , comprising a connector arrangement ( claim 1 , claim 1 , ) for selectively connecting the bi-metallic element () to the heating element () when the bi-metallic element () is heated so that the bi-metallic element () drives the heating element () to move when the at least one bi-metallic element () is deformed.3100300302304. A cooker () according to claim 2 , wherein the connector arrangement ( claim 2 , claim 2 , ) comprises:{'b': 200', '302', '304', '202', '300, 'the heating element () comprising one of a groove () and a protrusion () and the bi-metallic element () comprising one of a groove and a protrusion (), such that{'b': 302', '304', '200', '300', '202', '202, 'the groove () or the protrusion () of the heating element () selectively engages with the groove or protrusion () of the bi-metallic element () when the bi-metallic element () is deformed; and'}{'b': 302', '304', '200', '300', '202', '202, 'the groove () or the protrusion () of the heating element () disengages from the groove or protrusion () of the bi-metallic element () when the bi-metallic element () is not deformed.'}4100202200202200202. A cooker () according to claim 1 , comprising plural bi-metallic elements () arranged to drive ...

OVEN APPLIANCE HAVING RESISTIVE TOUCHSCREEN AND METHOD FOR OPERATING SAME

Oven appliances and methods for operating oven appliances are provided. An oven appliance includes a cooking assembly, the cooking assembly including a heating element. The oven appliance further includes a user interface panel, the user interface panel comprising a resistive touchscreen operable to transmit electrical signals. The oven appliance further includes a controller in communication with the resistive touchscreen and the heating element. The controller is operable to receive the electrical signals, select a calibration set based on a temperature-related operating condition, and interpret the electrical signals based on the selected calibration set. 1. An oven appliance , comprising:a cooking assembly, the cooking assembly comprising a heating element;a user interface panel, the user interface panel comprising a resistive touchscreen operable to transmit electrical signals; anda controller in communication with the resistive touchscreen and the heating element, the controller operable to receive the electrical signals, select a calibration set based on a temperature-related operating condition, and interpret the electrical signals based on the selected calibration set.2. The oven appliance of claim 1 , wherein the temperature-related operating condition is a local temperature.3. The oven appliance of claim 1 , wherein the temperature-related operating condition is an operating mode.4. The oven appliance of claim 1 , wherein the temperature-related operating condition is an input power level.5. The oven appliance of claim 1 , wherein the calibration set is selected from a plurality of available calibration sets.6. The oven appliance of claim 5 , wherein each of the plurality of available calibration sets corresponds to a distinct level for the temperature-related operating condition.7. The oven appliance of claim 1 , further comprising a temperature sensor claim 1 , the temperature sensor in communication with the controller.8. The oven appliance of claim 1 ...

MICROWAVE, DISPLAY DEVICE AND COOKING SYSTEM INCLUDING THE SAME

A cooking system is disclosed. The cooking system includes a microwave and a display device. The microwave is configured to in response to a received user command, generate a first image by photographing a cooktop located below the microwave through a first camera or generate a second image by photographing an inside of the microwave through a second camera. The microwave is also configured to transmit at least one of the first image and the second image to the display device. The display device is configured to receive the at least one of a first image and the second image from the microwave and display the received at least one image. 1. A cooking system , comprising: in response to a received user command, generate a first image by photographing a cooktop located below the microwave through a first camera or generate a second image by photographing an inside of the microwave through a second camera, and', 'transmit at least one of the first image and the second image to a display device; and, 'a microwave configured to receive at least one of the first image and the second image from the microwave, and', 'display the received at least one image., 'a display device configured to2. The cooking system of claim 1 , wherein the display device claim 1 , in response to receiving of a user input claim 1 , is further configured to transmit a control command for controlling at least one of the microwave and the cooktop to the microwave claim 1 , and receive the control command from the display device, and', 'controls operations of at least one of the microwave and the cooktop according to the received control command., 'wherein the microwave is further configured to3. The cooking system of claim 1 , wherein the first camera photographs a first cooking container positioned on the cooktop from a first photographing direction claim 1 , and the second camera photographs a second cooking container positioned inside the microwave in a second photographing direction claim 1 , ...

WIRELESS INDUCTION HEATING COOKER WITH IMPROVED HEAT CONDUCTION EFFICIENCY

A wireless induction heating cooker includes a main body configured to receive and heat food objects therein, a lid configured to couple to an upper surface of the main body, and an inner pot configured to be accommodated in the main body and to be heated based on a magnetic field being generated by a heating coil of an induction heating device. The inner pot defines a heat conduction space that is surrounded by a bottom surface, an outer surface, and an inner surface of the inner pot. 1. A wireless induction heating cooker comprising:a main body configured to receive and heat food objects therein;a lid configured to couple to an upper surface of the main body; andan inner pot configured to be accommodated in the main body and to be heated based on a magnetic field being generated by a heating coil of an induction heating device,wherein the inner pot defines a heat conduction space that is surrounded by a bottom surface, an outer surface, and an inner surface of the inner pot.2. The wireless induction heating cooker of claim 1 , wherein the lid is coupled to the main body by a hinge and configured to open and close the upper surface of the main body claim 1 , the lid being configured to be detached from the main body.3. The wireless induction heating cooker of claim 1 , wherein the inner pot is configured to transfer heat generated on the bottom surface of the inner pot in a direction upward through the heat conduction space.4. The wireless induction heating cooker of claim 1 , wherein the inner pot has a cylindrical shape and defines a pot opening at an upper surface thereof claim 1 , andwherein the bottom surface of the inner pot has a flat shape and is configured to contact a bottom surface of the main body.5. The wireless induction heating cooker of claim 1 , wherein an area of the bottom surface of the inner pot is less than an area defined by the heating coil of the induction heating device.6. The wireless induction heating cooker of claim 1 , wherein the ...

Appliance Heating Element with Integrated Temperature Sensing

Heating assemblies for cooktop appliances are provided. In one embodiment, the heating assemblies include a first portion and a second portion. The first portion includes a heat generating component and a first sheath surrounding the heat generating component. The first sheath defines a first support surface. The second portion includes a temperature sensing component and a second sheath surrounding the temperature sensing component. The second sheath defines a second support surface. The first support surface and the second support surface contact a cooking utensil when the cooking utensil is positioned on the heating assembly. The heat generating component may be configured to provide heat to the cooking utensil positioned on the heating assembly, and the temperature sensing component may be configured to sense the temperature of the cooking utensil in order to assist in regulating the temperature of the cooking utensil. 1. A heating assembly for a cooktop appliance , the heating assembly comprising: a heat generating component, and', 'a first sheath surrounding the heat generating component, the first sheath defining a first support surface; and, 'a first portion including'} a temperature sensing component, and', 'a second sheath surrounding the temperature sensing component, the second sheath defining a second support surface,, 'a second portion including'}wherein the first support surface and the second support surface contact a cooking utensil when the cooking utensil is positioned on the heating assembly.2. The heating assembly of claim 1 , wherein a length of the second portion is configured in a generally circular shape claim 1 , and wherein a length of the first portion is coiled about the circular shape of the second portion.3. The heating assembly of claim 1 , wherein a length of the first portion is coiled about a center point and a length of the second portion is coiled about the center point claim 1 , and where coils of the first portion alternate ...

INDUCTION HEAT COOKING APPARATUS AND METHOD FOR DRIVING THE SAME

An induction heat cooking apparatus includes a rectifier to rectify an input voltage and to output a DC voltage; a plurality of switching elements to switch the DC voltage output from the rectifier; a plurality of heating coils to heat a cooking container according to an operation of the plurality of switching elements; and a control part to control the plurality of switching elements, wherein the control part controls a time at which a switching element between a heating coil which is operated and a heating coil which is not operated among the plurality of heating coils is opened to be earlier than that of another switching element, such that power is not applied to the heating coil which is not operated. 1. An induction heat cooking apparatus comprising:a rectifier to rectify an input voltage and to output a DC voltage;a plurality of switching elements to switch the DC voltage output from the rectifier;a plurality of heating coils to heat a cooking container according to an operation of the plurality of switching elements; anda control part to control the plurality of switching elements,wherein the control part controls a time at which one of the plurality of switching elements between a heating coil which is operated and a heating coil which is not operated, among the plurality of heating coils, is opened to be earlier than that of other of the plurality of switching elements, such that power is not applied to the heating coil which is not operated.2. The apparatus according to claim 1 , wherein the control part controls a closed state of the one switching element to be shorter than half of a resonant period claim 1 , and also controls each of the other switching elements to be in an opened state or a closed state during half of the resonant period.3. The apparatus according to claim 1 , wherein the plurality of heating coils comprise a first heating coil claim 1 , a second heating coil claim 1 , and a third heating coil claim 1 ,wherein the plurality of ...

Combination Outdoor Cooktop And Grill With Split Cover

A cooking apparatus including a housing having an outer perimeter and a first opening. A flange extending from the housing defines the outer perimeter. An inner peripheral edge defines the first opening. A cooktop element has a first peripheral edge, and at least one grill element has a second peripheral edge. A plurality of holes are in a grill plate of the at least one grill element to allow matter to pass through the holes. The cooktop element and the at least one grill element are mounted to the housing in the first opening with at least part of the first and second peripheral edges facing each other and at least part of the inner peripheral edge facing the first and second peripheral edges. The housing is configured to insert into an opening of a support structure with the flange preventing insertion all the way through the opening of the support structure. 1. A cooking apparatus comprising:a housing having an outer perimeter and a first opening which is substantially rectilinear;an inner peripheral edge defining the first opening;a cooktop element having a first peripheral edge and being an electrically powered induction cooktop;a grill element having a second peripheral edge and a removable grill plate with plurality of holes therein to allow matter to pass there through, said grill element being electrically powered;the cooktop element and the grill element mounted securely to the housing in the first opening such that at least part of the first and second peripheral edges are facing each other and such that at least part of the inner peripheral edge faces the first peripheral edge and the second peripheral edge;wherein the first opening accounts for at least 60% of an area within the outer perimeter.2. The cooking apparatus of claim 1 , wherein the outer perimeter is defined by a flange that extends from the housing claim 1 , the housing is configured to insert into an opening of a support structure such that the flange prevents insertion all the way ...

COOKTOP APPLIANCES AND CONTROL METHODS FOR THE SAME

A cooktop appliance includes an electric heating element positioned at a cooking surface and a controller operably connected to the electric heating element. The controller is configured to generate a temperature setting. The controller is also configured to activate the electric heating element and calculate a projected maximum temperature. The controller is further configured to deactivate the electric heating element when the projected maximum temperature is greater than the temperature setting. 1. A cooktop appliance , comprising:an electric heating element positioned at a cooking surface of the cooktop appliance; and generate a temperature setting;', 'activate the electric heating element;', 'calculate a projected maximum temperature; and', 'deactivate the electric heating element when the projected maximum temperature is greater than the temperature setting., 'a controller operably connected to the electric heating element, the controller configured to2. The cooktop appliance of claim 1 , wherein the controller is configured to calculate the projected maximum temperature based on a current temperature claim 1 , a rate of change in a monitored temperature claim 1 , and an on duration of the electric heating element.3. The cooktop appliance of claim 1 , wherein the controller is further configured to monitor a temperature with a temperature sensor after deactivating the electric heating element.4. The cooktop appliance of claim 3 , wherein the controller is further configured to calculate a projected minimum temperature after deactivating the electric heating element and to reactivate the electric heating element when the projected minimum temperature is less than a lower limit temperature.5. The cooktop appliance of claim 3 , wherein the monitored temperature is a temperature of a cooking utensil.6. The cooktop appliance of claim 3 , wherein the monitored temperature is a temperature of the cooking surface.7. The cooktop appliance of claim 1 , wherein the ...

TEMPERATURE CONTROLLING DEVICE FOR AN APPLIANCE HEATING ELEMENT

A burner element for a cooktop includes a heat source for providing heat to a cooking zone positioned above the heat source and an automatic thermostat switch in communication with the cooking zone and the heat source. The automatic thermostat switch senses an actual temperature of the cooking zone, and when the actual temperature reaches a predetermined maximum temperature the automatic thermostat switch moves to an open position defined by the automatic thermostat switch at least partially impeding the heat source. The open position of the automatic thermostat switch is further defined by a decrease in the actual temperature of the cooking zone from approximately the predetermined maximum temperature to a control temperature. When the actual temperature of the cooking zone reaches the control temperature the automatic thermostat switch defines a closed position, wherein the automatic thermostat switch is substantially free of impeding the heat source. 1. A burner element for a cooktop , the burner element comprising:a heat source for providing heat to a cooking zone positioned above the heat source; anda temperature sensor having an automatic thermostat switch in communication with the cooking zone and the heat source, wherein the automatic thermostat switch senses an actual temperature of the cooking zone, and wherein when the actual temperature reaches a predetermined maximum temperature, the automatic thermostat switch moves to an open position defined by the automatic thermostat switch at least partially impeding the heat source, wherein the open position of the automatic thermostat switch is further defined by a decrease in the actual temperature of the cooking zone from approximately the predetermined maximum temperature to a control temperature, and wherein when the actual temperature of the cooking zone reaches the control temperature, the automatic thermostat switch defines a closed position, wherein the automatic thermostat switch is substantially free ...

Switch box for a cooktop appliance

A switch box for housing a switch underneath a cooktop is disclosed. The switch is connected to a control member accessible above the cooktop to accept user inputs. The switch box has an air-insulation channel defined between first and second spaced-apart barrier walls. In desirable embodiments the first and second barrier walls are integrally formed with other components of the switch box from plastic as a single-piece part.

Cooker and method for controlling the same

提供了一种炊具和炊具的控制方法。所述炊具可包括：热源，配置为产生热；检测传感器，配置为检测所述热源的温度；以及控制器，配置为将由所述检测传感器检测到的所述热源的当前温度与至少一个控制参考温度进行比较以控制所述热源的开/关操作。所述控制器控制所述热源保持在开状态，直到所述热源的当前温度达到所述控制参考温度，并且当所述热源的当前温度超过所述控制参考温度时，所述控制器控制所述热源重复打开和关闭预定时间段或预定次数。

Circuit arrangement in cooking hobs for controlling the heating power

The circuit arrangement is used for controlling the heating power in cooking hobs. According to the invention, electronic measures are adopted as a result of which a time interval can be set for a continuing cooking phase as a function of a set heat value, during which the full achievable heating power is provided as the cooking heating power. <IMAGE>

Temperature control system for film heater

A cook top having a simple, low cost heater control circuit which monitors changes in electrical resistance of a thin film heater that exhibits positive temperature coefficient (PTC) characteristics. The monitored resistance value, as a function of current drawn by the heater, is used to control power output to the heater.

Electric cooking apparatus

Various embodiments of an electrical cooking apparatus are disclosed. In one embodiment, an electrical cooking apparatus includes a substantially continuous cooking surface, a plurality of electrical heating elements disposed under the substantially continuous cooking surface, and at least two temperature controllers configured to allow independent control of temperatures of at least two of the plurality of heating elements.

ELECTRIC COOKING APPARATUS

L'invention concerne un appareil électrique de cuisson comprenant un socle (1) , un bac (2) destiné à reposer sur ledit socle, une résistance électrique chauffante (3) , une grille de cuisson (4) et des moyens de régulation thermique montés en série avec la résistance électrique chauffante (3) et fonctionnant dans une plage de températures de commutation prédéterminée.Selon l'invention, ledit appareil comporte en outre un interrupteur thermostatique de sécurité (11) agencé dans le socle et monté en série avec la résistance chauffante (3) , fonctionnant à une température de commutation fixée inférieure à la température minimale de ladite plage et permettant de détecter, par conduction thermique, les augmentations anormales de température du bac (2) et de couper, le cas échéant, l'alimentation de la résistance électrique chauffante (3) . The invention relates to an electric cooking appliance comprising a base (1), a pan (2) intended to rest on said base, an electric heating resistance (3), a cooking grid (4) and mounted thermal regulation means. in series with the electric heating resistor (3) and operating within a predetermined switching temperature range. According to the invention, said apparatus further comprises a thermostatic safety switch (11) arranged in the base and mounted in series with the resistor heater (3), operating at a fixed switching temperature lower than the minimum temperature of said range and making it possible to detect, by thermal conduction, abnormal increases in temperature of the tank (2) and to cut off, if necessary, the power supply of the electric heating resistance (3).

ELECTRICAL HEATING DEVICE FOR COOKING APPLIANCES

Dispositif de chauffage électrique par résistance pour appareils de cuisson caractérisé en ce qu'il comporte une diode pouvant être mise en série avec la résistance électrique de chauffage et un thermostat commandant le court-circuit de ladite diode. Applications aux mijoteuses. Electric resistance heating device for cooking appliances characterized in that it comprises a diode which can be placed in series with the electric heating resistance and a thermostat controlling the short-circuit of said diode. Slow cooker applications.

Thermostatic control and regulation device

CONTROL DEVICE FOR ELECTRIC COOKING TABLES

Dispositif de commande pour tables de cuisson électriques comprenant un dispositif de commande de puissance quantifiée réglable qui comprend un élément dilatable avec un élément chauffant électrique et un organe de commutation de temporisation qui élève la puissance réglée sur le dispositif de commande de puissance pendant un certain temps au cours de la phase de démarrage de la cuisson. Ce dispositif est caractérisé en ce que l'organe de commutation de temporisation comprend un compteur électronique 32 faisant fonction d'organe de temporisation et au moins un diviseur 33 qui réduit, par l'intermédiaire d'un élément de commutation 35, la puissance amenée à l'élément chauffant 20 selon un rapport de division prédéterminé. Principales applications : usages domestiques. Control device for electric cooktops comprising an adjustable quantized power control device which comprises an expandable member with an electric heating element and a timing switch which raises the power set on the power controller for a certain time during the cooking start phase. This device is characterized in that the timing switching member comprises an electronic counter 32 acting as a timing member and at least one divider 33 which reduces, through a switching element 35, the power supplied. to the heating element 20 according to a predetermined division ratio. Main applications: domestic uses.

DEVICE FOR DETERMINING WITHOUT PROBE THE TEMPERATURE OF A COOKER

IL EST PROPOSE POUR UNE CUISINIERE A POSTES DE CUISSON CHAUFFES ELECTRIQUEMENT UN CIRCUIT DE DETERMINATION SANS SONDE DE LA TEMPERATURE, LE DISPOSITIF ETANT CONSTITUE PAR UNE SECTION DE CALCUL 12, UNE MEMOIRE 13 ET UN INTERFACE 14 DESTINE A UN AFFICHAGE. LA MEMOIRE 13 CONSERVE LES DONNEES SUR LA DUREE DE LA CUISSON ET LA PUISSANCE NECESSAIRE A LA CUISSON ET DIVERSES POSITIONS DE COMMUTATION DES DISPOSITIFS DE CHAUFFAGE ELECTRIQUE, ET EGALEMENT AVANTAGEUSEMENT DES DONNEES SUR LES COURBES DE REFROIDISSEMENT DES POSTES DE CUISSON. LA TEMPERATURE DES POSTES DE CUISSON PEUT ETRE DETERMINEE AU MOYEN DE LA SECTION DE CALCUL 12 EN PARTANT DE CES DONNEES AINSI QUE DE LA DUREE DE BRANCHEMENT DES DISPOSITIFS DE CHAUFFAGE. EN OUTRE, ON PEUT AVANTAGEUSEMENT AFFICHER DES SYMBOLES DIFFERENTS POUR DES ZONES DE TEMPERATURE DIFFERENTES GRACE A L'AFFICHAGE. FOR A COOKER WITH ELECTRICALLY HEATED COOKING STATIONS, A DETERMINATION CIRCUIT WITHOUT A TEMPERATURE PROBE IS PROPOSED, THE DEVICE CONSISTING OF A CALCULATION SECTION 12, A MEMORY 13 AND AN INTERFACE 14 INTENDED FOR A DISPLAY. MEMORY 13 SAVES DATA ON COOKING DURATION AND THE POWER REQUIRED FOR COOKING AND VARIOUS SWITCHING POSITIONS OF ELECTRIC HEATING DEVICES, AND ALSO ADVANTAGEOUSLY DATA ON COOLING CURVES OF COOKING STATIONS. THE TEMPERATURE OF THE COOKING STATIONS CAN BE DETERMINED BY MEANS OF CALCULATION SECTION 12 FROM THESE DATA AS WELL AS FROM THE DURATION OF CONNECTION OF THE HEATING DEVICES. IN ADDITION, DIFFERENT SYMBOLS FOR DIFFERENT TEMPERATURE ZONES CAN BE ADVANTAGEOUSLY DISPLAYED THANKS TO THE DISPLAY.

ELECTRIC COOKING APPARATUS

Hot water tank, electrically heated, with one or more thermostats

Automatic switch for electric heaters

Device for adjusting the heat in electric heaters

Thermometer-radiator for shoe machines

Thermostatic control mechanism

Improvements to automatic switches

Improvements concerning stoves and electric ovens

Thermostatic switch

ELECTRONIC CONTROL DEVICE FOR ELECTRIC COOKERS

Electric appliance with mechanical supply voltage switch

Elektrogerät mit einer geschlossenen Bedienoberfläche (1) und einem mechanischen Schalter (2-4, 6-8; 9, 10), der unter der Bedienoberfläche (1) angeordnet ist und durch eine Durchbiegung der Bedienoberfläche (1) aus der ersten Stellung (SO) in die zweite Stellung (SU) gezwungen wird, wobei der Schalter (2-4, 6-8; 9, 10) eine Schnappfeder (2) umfasst, dadurch gekennzeichnet, dass- der Schalter (2-4, 6-8; 9, 10) in einer ersten Stellung (SO) das Elektrogerät von einem Versorgungsspannungsnetzwerk (5) trennt und in einer zweiten Stellung (SU) das Elektrogerät mit dem Versorgungsspannungsnetzwerk (5) verbindet, indem die Schnappfeder (2) in der zweiten Stellung (SU) elektrische Kontakte (5) überbrückt, um einen Primärstromkreis zu schließen, dass- die Schnappfeder (2) durch ein Federelement (4) an der Bedienoberfläche (1) angelenkt ist, das in der ersten Stellung (SO) die Schnappfeder (2) in Richtung der zweiten Stellung (SU) drückt und dass- die Schnappfeder (2) und das Federelement (4) so ausgelegt sind, dass sie bei Durchbiegung der Bedienoberfläche (1) aus der ersten Stellung (SO) über einen Punkt hinaus verschiebbar sind, ab dem sich die Schnappfeder (2) selbsttätig in die zweite Stellung (SU) bewegt. Electric device with a closed user interface (1) and a mechanical switch (2-4, 6-8, 9, 10), which is arranged under the user interface (1) and by a deflection of the user interface (1) from the first position (SO ) is forced to the second position (SU), said switch (2-4, 6-8, 9, 10) comprising a snap spring (2), characterized in that the switch (2-4, 6-8; 9, 10) in a first position (SO) separates the electrical device from a supply voltage network (5) and in a second position (SU) connects the electrical device to the supply voltage network (5) by the snap spring (2) in the second position (SU ) bridged electrical contacts (5) to close a primary circuit, that the snap spring (2) by a spring element (4) on the control surface (1) is articulated, in the first position ( ...

Patent FR2404369B1

A method for switching cooker heating elements has the elements grouped into different sections each switched by independent time and temperature control switches

The elements (14) are separated into two groups (14-1,14-2) and (14-3,14-4) each of which are switched by time and temperature controlled relays (10) and separate user switches (12) so that, for example, elements (14-1,14-3) may be energised and (14-2,14-4) off.

Electrical controlling device

CIRCUITIVE ARRANGEMENT TO SWITCH THE SUPPLY OF ENERGY TO ELECTRIC USERS

Control circuits for electric ovens

Electric heating systems for ovens or the like

ARRANGEMENT FOR DETECTIVE TEMPERATURE DETECTION IN A STOVE

Hob and method for operating a hob

The invention relates to a hob comprising a plurality of heating elements (10) arranged below a cooking surface and a control unit (16) for actuating the heating elements (10), said control unit (16) being designed to actuate a group of heating elements (10) in at least one operating mode in such a way that said group of heating elements (10) combine to heat a connected heating zone (18, 20). The aim of the invention is to furnish a hob of this type or a method for operating a hob with a higher flexibility in terms of the choice of heating power. To achieve this, the control unit (16) heats a first partial heating zone (22a, 22b, 22c) of the heating zone (18, 20) with a different heating power than at least one second partial heating zone (22a, 22b, 22c) of the heating zone (18, 20).

Control circuit for hot plate - has two circuits supplying switching pulse generator with charging currents which are dependent and independent of mains voltage fluctuation

The hot plate is supplied from the mains. A pulse generator with a charging circuit generates on and off switching signals with a certain keying ratio for the plate. In order to compensate mains voltage fluctuations, the pulse generator (1) is connected to a first supply circuit (17) provided with a component (19), e.g. a neon bulb, with a flat section in its current/voltage characteristic, and with a switch (16). The switch blocks the first supply circuit (17) during the switch off signals. During the switch on signals it passes a charging current which depends on mains voltage fluctuations through the supply circuit (17) to the pulse generator and charging circuit (17) to the pulse generator and charging circuit (1, 2). The pulse generator is connected to a second supply circuit (27) with a second switch (4), which supplies a charging current during the switch off signals which is independent of mains voltage fluctuations.

Control device

Circuit arrangement for indicating the residual heat of a heat source after switching off the electrical heat generator

The circuit arrangement for indicating especially the residual heat of a cooking hob of a cooking oven contains a ceramic PTC thermistor (2), an electromechanical or electronic thermal switch (3) thermally coupled to it, a warning element (4) which is connected to voltage via the thermal switch (3), and, in addition, a resistor (5) which is connected in series with the PTC thermistor (2) when the thermal switch (3) is closed, and the series circuit consisting of the PTC thermistor (2) and the resistor (5) is connected in parallel with the warning element (4). <IMAGE>

Arrangement for sensorless temperature determination on a stove

Für einen Herd mit elektrisch beheizbaren Kochstellen wird eine Schaltungsanordnung zur fühlerlosen Temperaturermittlung vorgeschlagen, welche aus einem Rechenteil, aus einer Speichereinrichtung und aus einer Schnittstelle für eine Anzeigeanordnung besteht. Dabei soll die Speichereinrichtung Daten über die Ankochdauer und die Fortkochleistung in den verschiedenen Schaltstufen der elektrischen Heizeinrichtungen enthalten, sowie vorzugsweise auch Daten über die Abkühlkurven der Kochstellen. Aus diesen Daten, sowie der Einschaltdauer der Heizeinrichtungen soll mittels des Re chenteils die jeweilige Temperatur der Kochstellen ermittelbar sein; außerdem können vorzugsweise mittels der Anzeigeanordnung für verschiedene Temperaturbereiche unterschiedliche Zeichen angezeigt werden. For a stove with electrically heatable hotplates, a circuit arrangement for sensorless temperature determination is proposed, which consists of a computing part, a memory device and an interface for a display arrangement. The storage device should contain data on the parboiling duration and the continued cooking power in the various switching stages of the electrical heating devices, and preferably also data on the cooling curves of the hotplates. From this data, as well as the duty cycle of the heating devices, the respective temperature of the hotplates should be determinable by means of the computing part; in addition, different characters can preferably be displayed for different temperature ranges by means of the display arrangement.

Improvement in thermostatic switches

Heating device with thermostat switch

A system for wiring a heating element in an electrical appliance to a conventional thermostat switch in a new manner and a new thermostat for supporting the new wiring system. The new wiring system avoids switching the full heating element current for both hot power leads of a split-phase power system to reduce the amount of wiring needed to wire the thermostat switch to a heating element and a pilot lamp showing that current is being provided to the heating element.

Emergency shutoff system for a cooking appliance and method of use thereof

An emergency shutoff system for a cooking appliance deactivates a cooking appliance upon the detection of smoke or rapidly rising heat. Three (3) embodiments are provided, depending on the presence of a gas or an electric model, each further comprises a combination heat and smoke detector located on the ceiling immediately above the appliance. The detector is connected to a control panel at the rear of the stove by a section of low voltage wiring. The control panel activates a shunt trip mechanism in the case of an electrically-powered stove or closes a low voltage solenoid valve in the case of gas-powered stove. Such features greatly reduce the affects of a fire at the cooking appliance should one occur.

Improvements in or relating to thermo-statically controlled electric heating devices

935,073. Controlling electric heaters. KODAK Ltd. Oct. 16, 1959 [Jan. 26, 1959], No. 35061/59. Class 39 (3). [Also in Group XXXV] In a system in which a switch type thermostat controls a main electric heater, a high resistance auxiliary heater for the thermostat is connected in parallel with the main heater. In Fig. 1, an exposed sensitized photographic sheet 4 is processed in a solution 2 and the image transferred to a non-sensitized sheet 6 by a mechanism 7 pressing the two sheets together as they leave the apparatus. Expansion of liquid in a capsule 12 responsive to the temperature of the solution operates, through a bellows 13, a switch 9 controlling the energization of an electric heater 8 so that the temperature of the solution is maintained constant at a preset value. To reduce the temperature differential an auxiliary electric heater 19, energized with the main heater, influences capsule 12. In a modification capsule 12 and auxiliary heater 19 are contained in a plastic bag immersed in the solution. Application of the invention to the temperature control of a drum in photographic print glazing or drying apparatus is referred to. Specification 713,729 is referred to.

COOKING FIELD AND PROCEDURE FOR THE OPERATION OF A COOKING FIELD.

Campo de cocción y procedimiento para el accionamiento de un campo de cocción. Cooking field and procedure for drive of a cooking field. Para proveer un campo de cocción según el género y un procedimiento para el accionamiento de un campo de cocción de una mayor flexibilidad en lo referente a la elección de la potencia de calentamiento, se propone que la unidad de mando (16) esté prevista para calentar una primera zona de calentamiento parcial (22a, 22b, 22c) de la zona de calentamiento (18, 20) con otra potencia de calentamiento que al menos una segunda zona de calentamiento parcial (22a, 22b, 22c) de la zona de calentamiento (18, 20). To provide a cooking range according to gender and a procedure for actuating a cooking field of greater flexibility regarding the choice of power heating, it is proposed that the control unit (16) be intended to heat a first partial heating zone (22a, 22b, 22c) of the heating zone (18, 20) with another heating power that at least a second zone of partial heating (22a, 22b, 22c) of the heating zone (18, 20).

Thermostatically controlled heating device and its applications

DEVICE FOR DETERMINING WITHOUT PROBE THE TEMPERATURE OF A COOKER

Domestic heating appliance

Temperature controller for heating elements

Automatic switch for electric heaters

Heat detecting device and cooking apparatus using the same

A heat detecting device and a cooking apparatus using the same, in which the operation of a heating unit is appropriately controlled according to the presence or absence and/or type of cooking container (e.g., pan or pot) on the cooking apparatus. When there is no cooking container on the cooking apparatus, the duty cycle of the heat source is reduced, thereby preventing unnecessary operation of the heat source. Accordingly, power consumption is reduced. On the other hand, when there is a cooking container on the cooking appliance, the duty cycle of the heat source is increased, thereby making faster more efficient cooking possible.

Electronic control device for electric cookers

Electric cooking device with automatic power control

Improvements to electric cookers

Control system for an appliance

A control system for determining a magnitude of a voltage and controlling an application of the voltage to at least one load device of an appliance is disclosed. The control system includes a threshold-crossing circuit configured to receive a representation of the voltage and to provide an output signifying the voltage crossing a predetermined voltage threshold; and a processor which receives the output from the threshold-crossing circuit and determine the magnitude of the voltage based on the output and a line frequency based on the period of the output, determines an initial cooking profile from a group of cooking profiles based on a user selected initial setting for controlling the application of the voltage to the at least one load device, and adjusts the application of the voltage to the at least one load device based on the determined magnitude of the voltage.

Improvements in or relating to vessels suitable for heating material at a substantially constant temperature

192,511. Clark, W. F. Nov. 9. 1921. Heating by electricity.-A vessel 1, Fig. 1,. shown as a glue-pot, for heating liquids by electric heaters 10 supported beneath the bottom is provided with a cavity 11 in the bottom plate 1<b> in which extends a tube 12 containing volatile liquid in communication with a Bourdon tube 13, Fig. 3. The movement of the free end of the tube 13, according to the temperature, is conveyed to a contact arm 18 through a pin 17, and the opening and closing of the electric circuit through the heating elements 10 is effected through contacts 19, 20. The block 22 carrying the flexible contact arm 18 can be raised or lowered by a screw 23 to effect adjustment of the temperature limit.

Patent DE3240547C2

Automatic switch for electric heaters

Apparatus and method for operating an electronic device having at least one electrical load

Eine Vorrichtung zum Betreiben eines Kochfeldes mit mehreren elektrischen Heizeinrichtungen (H1...Hn) weist auf: eine erste Gruppe von Takt-Relais (R1, R2, R3) zum Takten des Betriebs einer Heizeinrichtung (H1, H2, H3), die über einen ersten Versorgungszweig (m1) mit einer Spannungsversorgung (L1, L2, N) verbunden sind; eine zweite Gruppe von Takt-Relais (R4, R5, Rn) zum Takten des Betriebs einer Heizeinrichtung (H4, H5, Hn), die über einen zweiten Versorgungszweig (m2) mit der Spannungsversorgung (L1, L2, N) verbunden sind; ein im ersten Versorgungszweig (m1) angeordnetes erstes Trenn-Relais (Rm1) zum wahlweisen Trennen oder Verbinden der ersten Gruppe von Takt-Relais (R1, R2, R3) von bzw. mit der Spannungsversorgung (L1, L2, N); und ein im zweiten Versorgungszweig (m2) angeordnetes zweites Trenn-Relais (Rm2) zum wahlweisen Trennen oder Verbinden der zweiten Gruppe von Takt-Relais (R4, R5, Rn) von bzw. mit der Spannungsversorgung (L1, L2, N). Nach dem Einstellen eines vorgegebenen Ansteuerzustandes der ansteuerbaren Takt-Relais (R1, R2, R3, R4, R5, Rn) und Trenn-Relais (Rm1, Rm2) wird ein Stromfluss durch einen Verbindungszweig (mc) zwischen dem ersten und dem zweiten Versorgungszweig (m1, m2) erfasst, um dann einen Fehlerzustand zumindest eines der ansteuerbaren Relais (R1...Rn, Rm1, Rm2) in Abhängigkeit von dem Ansteuerzustand der ansteuerbaren Relais und dem erfassten Stromfluss beurteilen zu können. An apparatus for operating a hob with a plurality of electric heaters (H1 ... Hn) comprises: a first group of clock relays (R1, R2, R3) for clocking the operation of a heater (H1, H2, H3) passing over a first supply branch (m1) is connected to a power supply (L1, L2, N); a second group of clock relays (R4, R5, Rn) for clocking the operation of a heater (H4, H5, Hn) connected to the power supply (L1, L2, N) via a second supply branch (m2); a first isolating relay (Rm1) disposed in the first supply branch (m1) for selectively disconnecting or connecting the first ...

Patent FR741109A

Security system for electric cookers

The system has a control button (11) for controlling a heating plate (12) of an electric cooker and switching-off power supply to the plate if current interruption preset by a manufacturer during a cooking process exceeds a critical time. A cooking time countdown is continued with renewed power supply before an end of the critical time independent of the interruption. A control unit (13) is configured such that a cooking time preset by the manufacturer is not altered by a user. An acoustic signal sounds, and a warning lamp illuminates if the control unit interrupts a current to the plate. An independent claim is also included for an electric cooker.

Automatic electric heating system

Automatic temperature regulator

Storage tank for water heating

CONTROL DEVICE FOR HEATING APPLIANCES FOR DOMESTIC USE, ESPECIALLY FOR ELECTRIC TABLES OR COOKTOPS

DISPOSITIF DE COMMANDE D'APPAREILS DE CHAUFFAGE, COMPRENANT UN REGULATEUR DE PUISSANCE POUR L'ALIMENTATION CADENCEE EN ENERGIE DE CHAUFFAGE, ET UN DISPOSITIF POUR FOURNIR LA PLEINE PUISSANCE DE CHAUFFAGE PENDANT LA MISE EN CUISSON. UN ELEMENT DE TEMPORISATION 7 DONT LA DUREE DE MISE EN CIRCUIT EST DEFINIE PAR UN MULTIPLICATEUR ELECTRONIQUE ET DONT LE REGLAGE EST SELECTIONNE PAR UN ORGANE DE MANOEUVRE T EST PREVU POUR L'ACTIONNEMENT DU DISPOSITIF SERVANT A FOURNIR LA PLEINE PUISSANCE DE CHAUFFAGE. APPLICATION : NOTAMMENT AUX PLAQUES OU TABLES DE CUISSON ELECTRIQUES. CONTROL DEVICE FOR HEATING APPLIANCES, INCLUDING A POWER REGULATOR FOR THE RATE SUPPLY OF HEATING ENERGY, AND A DEVICE FOR PROVIDING FULL HEATING POWER DURING COOKING. A TIMING ELEMENT 7 WHOSE SWITCHING ON IS DEFINED BY AN ELECTRONIC MULTIPLIER AND THE ADJUSTMENT OF WHICH IS SELECTED BY AN OPERATING BODY T IS PROVIDED FOR THE ACTUATION OF THE DEVICE SERVING TO PROVIDE FULL HEATING POWER. APPLICATION: ESPECIALLY TO ELECTRIC COOKING PLATES OR TABLES.

Automatic circuit breaker for boilers

Temperature controlled/limiting heating element for an electric cooking appliance

A temperature controlled/limiting heating element for an electrically powered cooking appliance, having: a plate with an upper contact heating surface; a pair of heating element terminals adapted for removably engaging electrical power supply terminals of the electrically powered cooking appliance; a plurality of resistive heating wires, in thermal engagement with a lower surface of the top plate, comprising: a non-cycling resistive heating wire connected in series to the heating element terminals; and a cycling resistive heating wire connected in series to the heating element terminals via a thermostat switch in thermal engagement with a lower surface of the top plate, wherein the thermostat switch is normally closed when exposed to a sensed temperature below a set temperature and the thermostat switch opens when the sensed temperature is equal to or exceeds the set temperature.

Pressure cooker

Acoustic no-load operation display for cooking site

The no-load operation display has a recognition system for the cooking utensils. The display comprises a connection mechanism (18) designed for logical addition of two signals, an operating signal of a monitoring device (21) attached to a power switch (14) of the open- or closed-loop control and a recognition signal for the cooking utensil. The display generates an output signal for the activation of a signal transmitter (30), especially an acoustic one.

Heating plate comprising a heating current regulator acting as a function of the temperature

Cooling controller with push-to-turn rotary switch

A cooking controller assembly includes a heating element, a push-to-turn rotary switch, and an electric controller. The heating element is coupled to the push-to-turn rotary switch and the electric controller. The push-to-turn rotary switch is manually pushed and turned to selectively connect power to the heating element. The electric controller is coupled to the push-to-turn rotary switch and the heating element, and electrically controls the power to the heating element in relation to the manual rotation of the push-to-turn rotary switch.