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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 49. Отображено 49.
27-05-2015 дата публикации

High-pressure rotary compensator

Номер: CN104653937A
Автор: GAO YUQIN
Принадлежит:

The invention relates to a high-pressure rotary compensator for compensating expansion and contraction of a pressure pipeline. The high-pressure rotary compensator comprises an outer pipe (1), an inner pipe (2) and a seal sleeve (3), wherein a first connecting pipe (11) is arranged on the left end of a pipe body (12) of the outer pipe; one end of the first connecting pipe stretches into the pipe body; a flange (13) is arranged on the pipe body; the seal sleeve (3) and a locating ring (4) sleeve the middle part of the inner pipe; the seal sleeve is sealed with the excircle of the inner pipe; a second connecting pipe (22) is arranged on the right end of the inner pipe; a pressing plate (5) sleeves the second connecting pipe; the seal sleeve is sealed with the outer pipe through the pressing plate, and the left end of the inner pipe cooperatively sleeves the end part of the first connecting pipe; the inner diameters of the first connecting pipe and the second connecting pipe are equal; the ...

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Номер записи: 1
23-05-2023 дата публикации

Dike project modernization evaluation method based on cloud model and entropy weight combination

Номер: CN116151675A
Автор: GAO YUQIN, CHEN HONGYU, WANG HUI, TAN XILAN, WU MING, LIU YUNPING, ZHAO CHENCHENG, LI YUANYUAN, XU NUO, ZHU JIE
Принадлежит:

The invention discloses an embankment project modernization evaluation method based on a cloud model and entropy weight combination. The method comprises the following steps: constructing an embankment project management modernization evaluation index system; performing conversion between evaluation index data and a cloud model according to a built dike project management modernization evaluation index system; determining the combination weight of each index based on the combination weighting of a cloud model, an entropy weight method and a game theory; constructing a modern evaluation model of dike engineering management based on the cloud theory; and carrying out specific evaluation by using a cloud theory-based dike engineering management modernization evaluation model. According to the method, the connotation and content of dike engineering management modernization are clarified, a multi-level evaluation index system is constructed, and an evaluation model based on the cloud model and ...

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Номер записи: 2
01-09-2010 дата публикации

Multi-path timer

Номер: CN0101819406A
Автор: GAO YUQIN, YUQIN GAO
Принадлежит:

The invention discloses a multi-path timer, which consists of a hardware part and a software part. The hardware part comprises a singlechip IC1, a keyboard circuit for inputting information, a luminous indicating circuit, an acoustic drive circuit and a power supply circuit. The software part is positioned inside the singlechip IC1. The multi-path timer is used for skin test in a hospital. Because the timer controlled by adopting a singlechip program can time eight paths at the same time and has precise timing, each path has four skin test time values for selection, an acousto-optic prompt is produced during selecting and can be cancelled if the time of the selection is incorrect, the selection process does not affect the timing operation of other paths, the operating path is indicated by a light-emitting diode to be normally on, and the ending path has acousto-optic prompt after the operation is ended. Because of the functions of automatically searching an idle path number and transmitting ...

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Номер записи: 3
12-08-2015 дата публикации

Seepage failure hydraulic model

Номер: CN104831674A
Автор: LI NA, ZHAO SHOUGANG, LIU ZHONG, QIAO RUISHE, HAO BOJIN, LU LISAN, YANG XIAOPING, DENG YU, LI ZHENQUAN, YUE YUSU, SONG LI, WANG SHAOFENG, GAO YUQIN, CHANG FANGFANG, YU YUANBAO, XIAO YONGZHI, ZHAO XIANFENG
Принадлежит:

The invention relates to a hydraulic model, especially relates to a hydraulic model for simulating seepage failure of an earth-rock joint part, and belongs to the field of water conservancy. The IPC classification number is E02B 1/02. The seepage failure hydraulic model of the invention comprises a box body, a base, an upper flange, and a top cover. A movable top cover is arranged in the middle of the top cover. The box body is made of a transparent organic glass square pipe with a rectangular cross section. A rectangular groove is arranged in the portion, disposed inside the box body, of the base, and a permeable steel plate is arranged on the upper part of the groove. The testing apparatus of the invention can be used to carry out contact erosion test under different conditions, is convenient to operate and simple, significantly improves the working efficiency, needs less investment, and is simple and feasible. The box body adopts transparent organic glass, which facilitates observation ...

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Номер записи: 4
10-06-2015 дата публикации

Method for positioning wireless sensor network nodes of one-dimensional linear region

Номер: CN104703277A
Автор: HUANG WEIYONG, ZHAO WENJING, ZHANG YANHUA, CHEN BAO, WANG YI, TIAN CHUANGENG, XU XIAOJU, ZHU YONGHONG, CHEN KUI, GAO YUQIN, GUO CHAOPEI, WANG PENG
Принадлежит:

The invention discloses a method for positioning wireless sensor network nodes of a one-dimensional linear region. The method comprises the following steps of uniformly selecting N measuring points in the linear region by respectively arranging two anchor nodes at two ends of the region; repeatedly measuring an RSSI (received signal strength indicator) value; performing filtering and normalization; and performing complementation by using a binary cubic curved-surface polynomial. While steps are reduced and the cost is saved, the positioning precision is high. Steps of estimating environment parameters and performing node distance measurement in the conventional positioning method are omitted, the positioning precision is high, the calculated amount is low, and the cost is also low. The method can be used in a positioning system for the wireless sensor network nodes of one-dimensional regions such as a mine roadway, a long oil and gas transportation line, railway and highway traffic lines ...

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Номер записи: 5
04-04-2023 дата публикации

Tailless up-conversion three-dimensional display modeling object with power density dependence

Номер: CN115895659A
Автор: XIE XIAOJI, GAO YUQIN, LYU MIN
Принадлежит:

The invention belongs to the technical field of materials, and discloses a modeling object for three-dimensional display. The rare earth doped up-conversion nanoparticles are uniformly distributed in a specific three-dimensional shape by utilizing polydimethylsiloxane, and are cured to form a three-dimensional display screen. The three-dimensional display screen is excited by using focused or parallel laser beams, and the position of the laser or the position of the modeling object is changed, so that three-dimensional display is realized. The characteristics of the rare earth doped up-conversion nanoparticles and the polydimethylsiloxane are integrated, and the modeling object can emit light only when exciting light reaches a certain power density, so that the modeling object is clear in display, controllable in position and stable in light emission, and the double image blurring phenomenon caused by trailing is avoided.

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Номер записи: 6
16-09-1998 дата публикации

Handle preventing sliding and rotating

Номер: CN0002291268Y
Автор: FAN YONGDE, GAO YUQIN, YONGDE FAN, YUQIN GAO
Принадлежит: FAN YONGDE

The utility model relates to a handle preventing sliding and rotating. One or more clamping claws is arranged on the surface which is fixed between the handle and an object. When used, the position which is corresponding to the clamping claw on the object is provided with a clamping slot (or a clamping hole) and the clamping claw is clamped into the clamping slot. Other handles are fixed with the objects in the method of using screw nuts and screw rods. Thus the disadvantages of easy slide and rotation of the handles can be avoided. The utility model can be used for glass doors, pan covers, pot covers, steel cup covers, etc.

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Номер записи: 7
24-09-2014 дата публикации

Battery internal resistance measuring instrument

Номер: CN104062507A
Автор: GAO YUQIN
Принадлежит:

A battery internal resistance measuring instrument comprises a square wave pulse generating circuit. Under control of a square wave pulse signal output by the square wave pulse generating circuit, a constant-current charge circuit and a constant-current discharge circuit charge and discharge a battery to enable an alternating-current voltage signal to be formed on the battery. An alternating-current amplification circuit amplifies the alternating-current voltage signal. An amplification signal output by the alternating-current amplification circuit is sent to a wave detection circuit, the wave detection circuit converts the amplification signal into a direct-current voltage signal, and the direct-current voltage signal is sent to a display to display a corresponding internal resistance value. The battery internal resistance measuring instrument is characterized in that the charge and discharge circuits can input a constant alternating current to the battery and enable an alternating-current ...

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Номер записи: 8
12-03-2014 дата публикации

Segmented air cooler

Номер: CN103629950A
Автор: GAO YUQIN
Принадлежит:

The invention relates to a segmented air cooler used for cooling heat flow media through air. The segmented air cooler comprises a shell, wherein the bottom of the shell is provided with an opening, an air outlet 2 in the top of the shell is provided with a fan for air draft, an upper fin tube for first heat exchange and a lower fin tube for secondary heat exchange are arranged in the shell, and the upper fin tube and the lower fin tube are in serial connection. The segmented air cooler is characterized in that the upper fin tube is arranged on the upper portion of the shell, the lower fin tube is arranged in the lower portion of the shell, a water spraying tube is disposed between the upper fin tube and the lower fin tube, a sprayer 5 on the water spraying tube faces towards the lower fin tube, a water storage pool is arranged under the lower fin tube, and fins on the upper fin tube are of a shape that the upper end portions and the lower end portions are symmetrically bent. According ...

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Номер записи: 9
05-06-2020 дата публикации

Stirring type temperature control fermentation tank

Номер: CN0210683734U
Автор: ZHAO YAN, WANG CHANGHU, WU HONGMING, ZHANG GUOJUN, GAO YUQIN
Принадлежит: SHANDONG SHENDONG FERMENTATION EQUIPMENT CO LTD, SHANDONG SHENDONG FERMENTATION EQUIPMENT CO., LTD.

The utility model discloses a stirring type temperature control fermentation tank. The device comprises a fermentation tank and a refrigerating device, the fermentation tank is provided with a stirring device, a speed reducing motor and a temperature sensor; the stirring device comprises a fixed shell and a movable shell, the fixed shell is fixedly connected with the fermentation tank and is rotationally connected with a speed reducing motor, and a first annular fixed cavity, a second annular fixed cavity, a first liquid passing opening connected with the first fixed cavity and a second liquidpassing opening connected with the second annular fixed cavity are formed in the fixed shell and are connected with the refrigerating device through pipelines; the movable shell is fixedly connectedwith a gear motor, a first annular movable cavity and a second annular movable cavity are formed in the movable shell, a third liquid passing opening and a fourth liquid passing opening are formed inthe ...

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Номер записи: 10
12-03-2014 дата публикации

Air cooler

Номер: CN103629951A
Автор: GAO YUQIN
Принадлежит:

An air cooler comprises a shell (5). Supporting boards (3) are arranged at the two ends inside the shell in a sealed mode. A plurality of heat exchange tubes (6) extend out from the portion between the supporting boards and are connected with the supporting boards in a sealed mode. A water inlet tube (4) and a water outlet tube (9) are arranged on the wall of the shell. A front end cover (2) and a rear end cover (7) are connected to the two ends of the shell respectively. An air inlet (1) is formed in the front end cover (2). An air outlet (8) is formed in the rear end cover. The air cooler is characterized in that the tube wall of each heat exchange tube is of a corrugated structure in the axial direction of the tube wall. Due to the fact that the tube wall of each heat exchange tube is of the corrugated structure in the axial direction of the tube wall, gas flows in the tubes in the turbulence state, heat exchange between the gas inside the heat exchange tubes and liquid outside the heat ...

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Номер записи: 11
05-06-2020 дата публикации

Recoil type wort collector

Номер: CN0210683730U
Автор: ZHAO YAN, WANG CHANGHU, WU HONGMING, ZHANG GUOJUN, GAO YUQIN
Принадлежит: SHANDONG SHENDONG FERMENTATION EQUIPMENT CO LTD, SHANDONG SHENDONG FERMENTATION EQUIPMENT CO., LTD.

The utility model discloses a backflushing type wort collector which comprises a wort temporary container, a wort liquid inlet pipe and a wort backflushing pipe are arranged on the wort temporary container, a wort liquid outlet pipe is arranged at the bottom of the wort temporary container, and the wort liquid outlet pipe is sequentially connected with a control valve and a centrifugal pump. A back flushing cavity separated by a baffle is arranged in a liquid inlet of the wort liquid inlet pipe, a one-way valve and a liquid conveying pump are arranged on the wort back flushing pipe, and the liquid outlet end of the wort back flushing pipe is communicated with the back flushing cavity. The utility model provides a recoil type wort collector. The recoil type wort collector is provided with awort recoil pipe and an infusion pump, according to the wort temporary container, wort entering the wort temporary container can be pumped out, the filter sieve plate in the filter device is backflushed ...

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Номер записи: 12
10-09-2014 дата публикации

Internal combustion engine exhaust filter regeneration point measuring device

Номер: CN104033223A
Автор: GAO YUQIN
Принадлежит:

An internal combustion engine exhaust filter regeneration point measuring device is used for making judgments for an internal combustion engine exhaust filter regeneration point. The internal combustion engine exhaust filter regeneration point measuring device structurally comprises an exhaust filter (2) connected to a gas inlet pipe (1), and a pressure reference pipe (4) with a certain resistance coefficient, and is characterized in that an electric valve (5) is connected to an exhaust pipe (3) of the exhaust filter, the pressure reference pipe is connected to the portion, between the exhaust pipe and the electric valve, of the pipeline of the exhaust pipe, a first pressure sensor (61) is arranged on the gas inlet pipe, and a second pressure sensor (62) arranged at the inlet position of the pressure reference pipe. The internal combustion engine exhaust filter regeneration point measuring device has the advantages that the electric valve is in a closed state in the regeneration point measuring ...

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Номер записи: 13
16-04-2014 дата публикации

Electrical conductivity/frequency switching circuit

Номер: CN103728498A
Автор: GAO YUQIN
Принадлежит:

The invention relates to an electrical conductivity/frequency switching circuit which is used for detecting the electrical conductivity of a solution. According to the electrical conductivity/frequency switching circuit, a comparator A1, an analog switch IC, a resistor R1, a resistor R2, a resistor R3, a capacitor C and a conductivity electrode DDJ constitutes a square-wave generator. The electrical conductivity/frequency switching circuit is characterized in that an RC charging-discharging circuit of the square-wave generator is formed by a solution resistor between the capacitor C and the conductivity electrode DDJ, and accordingly currents flowing through the conductivity electrode are changed into alternating currents. The electrical conductivity/frequency switching circuit is simple in structure, the electrical conductivity of the solution can be converted into a corresponding frequency to be output, the frequency of the currents flowing through the solution resistor can be automatically ...

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Номер записи: 14
24-12-2014 дата публикации

Kingston valve

Номер: CN104235475A
Автор: GAO YUQIN
Принадлежит:

A kingston valve comprises a cup-shaped valve body (1), a valve element positioned in the valve body and a valve deck (12), wherein an inlet pipe (20) is arranged on the bottom wall of the valve body, a valve seat (2) is arranged on a pipe opening of the inlet pipe, and the pipe wall of the inlet pipe is fixedly connected with a guide sleeve (3) through a rib (4). The valve element is formed by a magnetic disk, a connection column, a valve clack and a guide shaft, wherein the guide shaft penetrates through the guide sleeve, and a compression spring on the guide shaft can make the valve clack press the valve seat. The valve deck is formed by a plate body (13), a core column (14) and a ring body (15), wherein the core column is sleeved with a coil (16), and a sealing layer (17) fixedly seals the coil. The valve deck and the magnetic disk are made of magnetic metal materials, and the sealing layer is made of nonmagnetic materials. The magnetic field force generated by the magnet exciting coil ...

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Номер записи: 15
18-07-2023 дата публикации

Method for evaluating influence of exploration blasting on levee safety

Номер: CN116451327A
Автор: SONG LI, ZHAO SHOUGANG, GUO BOWEN, WANG SHIZHONG, LI TONG, GAO YUQIN, FAN BING, LU LISAN, LIU ZHONG, CHANG FANGFANG, ZHANG KAI, LI NA, CUI SHANSHAN, YU YUANBAO, YANG ZHIGANG, XIAO YONGZHI, WANG DEHUA, ZHA YANGGUANG, LIAN JUNHANG
Принадлежит:

The invention discloses a method for evaluating the influence of exploration blasting on the safety of a levee, and the method comprises the steps: providing a maximum safety vibration speed control threshold value at a levee foot on the basis of a large amount of exploration blasting monitoring data of a levee project, analyzing levee blasting vibration response based on a finite element numerical simulation technology, and calculating the influence of exploration blasting on the safety of the levee in combination with a calculation result. The method for analyzing the influence of exploration blasting on the levee safety is established from the aspects of the vibration speed of a levee foot, the liquidation degree of a levee body and a levee foundation, levee body slope stability and the like. The method for analyzing the safety influence of exploration blasting on the Yellow River levee is established, and the safety influence of exploration blasting on the Yellow River levee can be ...

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Номер записи: 16
06-06-2023 дата публикации

Production and detection integrated automatic debugging method and system applied to fusion terminal and storage medium

Номер: CN116228263A
Автор: LIU XIALING, ZHOU JUN, FAN YI, HE ZHAORUI, ZHOU QIANG, LU HONGYU, JIANG HAISHENG, ZOU HANG, CHEN CHEN, YUE YOU, SUN JIANDONG, WANG JIA, LU FAN, XING LING, ZHANG CHI, GAO YUQIN, YANG TAO, TAN TAO
Принадлежит:

The invention discloses a production and detection integrated automatic debugging method and system applied to a fusion terminal and a storage medium, and the method comprises the steps: scanning a product nameplate two-dimensional code, and obtaining product ID information; querying the cloud master station through the product ID information; if the product has been tested, obtaining an existing test result; if the product is not tested, a corresponding test scheme is obtained, a production detection test is carried out according to the obtained test scheme, and a test result is stored in a local database; a test result is uploaded to the cloud master station, and a test analysis report is obtained; and if the test fails, the cloud master station comprehensively analyzes the fault and outputs maintenance and recheck suggestions. The problems of complicated debugging link steps, low manual debugging efficiency, long time consumption, high labor cost and relatively high production cost of ...

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Номер записи: 17
29-10-2014 дата публикации

Reactive current measurement circuit

Номер: CN104122434A
Автор: GAO YUQIN
Принадлежит:

The invention discloses a reactive current measurement circuit. According to the reactive current measurement circuit, the turn-on and cut-off of an optical coupler LED1 and an optical coupler LED2 are controlled through the voltage signal of a line voltage UBC, and a line current IA signal is acquired in the specific turn-on intervals of the optical couplers, thus obtaining the average value of the line current IA signal in the turn-on intervals, that is, a reactive current signal. The reactive current measurement circuit has the following beneficial effects that: with the adoption of the optical coupling devices, the voltage signal of the line voltage UBC has no electrical contact with the line current IA signal, thus avoiding the mutual interference therebetween, and reducing the measurement errors of a reactive current; the circuit is simple in structure, easy to debug, and low in production cost; because the circuit is simple in structure, an accumulative error is avoided during the ...

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Номер записи: 18
29-10-2014 дата публикации

Reactive power measurement circuit

Номер: CN104122438A
Автор: GAO YUQIN
Принадлежит:

The invention discloses a reactive power measurement circuit which is used for a reactive power measurement for a single-phase alternating-current circuit. The reactive power measurement circuit comprises a reactive current detection circuit, wherein the reactive current signal Up detected by the reactive current detection circuit and a voltage signal Ua from the single-phase alternating-current circuit are conveyed to a multiplier circuit. The reactive power measurement circuit is characterized in that the multiplier circuit comprises a resistance control circuit and a reverse phase operational amplifier circuit; the reactive current signal Up is the input signal of the reverse phase operational amplifier circuit, the reactive current signal Up changes the amplification times of the reverse phase operational amplifier circuit through the resistance control circuit, the amplification times is in direct proportion to the voltage signal Ua, and the output signal of the reverse phase operational ...

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Номер записи: 19
28-07-2023 дата публикации

Assist device for breast disease operation

Номер: CN116492128A
Автор: LI HANBING, ZHAO YIZAO, FENG XIAOFEN, GAO YUQIN, WANG XIAOQING, YANG WEN
Принадлежит:

The invention discloses an assist device for breast disease surgery in the field of medical instruments, which comprises a clothes body, and a first zipper is fixedly connected to the middle of the front side of the clothes body; through holes are formed in the chest positions of the clothes body, fixing straps are arranged below the through holes, and the tops and the bottoms of the fixing straps are sewn with the clothes body. Supporting plates are fixedly connected to the two sides of the clothes body, fixing rings are fixedly connected to the sides, away from the clothes body, of the supporting plates, and each fixing ring comprises a first ring body and a second ring body which are hollow. Dressing change is directly carried out on the surgical site of a patient through the through opening, and the possibility that a drainage tube is pulled when the coat body is put on or taken off is reduced to a certain extent; the forearms and the upper arms of a patient are limited to a certain ...

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Номер записи: 20
12-03-2014 дата публикации

Air capacity control device of air cooler

Номер: CN103629133A
Автор: GAO YUQIN
Принадлежит:

The invention relates to an air capacity control device of an air cooler. The air capacity control device comprises a motor providing power for a fan, a frequency conversion circuit providing a variable-frequency power source for the motor and a temperature detector, the two input ends of the temperature detector are connected with the output end of a temperature sensor Rt1 and the output end of a temperature sensor Rt2 respectively, the output end of the temperature detector 1 is connected with the inverting control input end of the frequency conversion circuit, and the output end of the frequency conversion circuit is connected with the motor. The air capacity control device is characterized in that the temperature sensor Rt1 is arranged in the outlet end of a finned tube of the air cooler, and the temperature sensor Rt2 is arranged on one side of the wind facing face of the finned tube 1; the rotating speed of the motor is adjusted according to the difference value between hot fluid ...

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Номер записи: 21
23-05-2023 дата публикации

Disaster-bearing body vulnerability evaluation method based on mutation series

Номер: CN116151671A
Автор: GAO YUQIN, WU JINGJING, ZHU JIE, XU LONGSHENG, WU MING, GAO LI, LIU YUNPING, XIE MENGYAO, CHENG YAYA, XU JIAYING
Принадлежит:

The invention discloses a disaster-bearing body vulnerability evaluation method based on mutation series, which comprises the following steps: collecting data of population, economy, ecology and the like in a research area, and selecting evaluation indexes from the aspects of exposure degree, sensitivity and disaster prevention and reduction capability; constructing a disaster-bearing body vulnerability index system based on the mutation series; performing consistent dimensionless processing on the evaluation indexes; and analyzing the vulnerability of the disaster-bearing body in the research area by using a mutation series comprehensive evaluation method. The invention provides the comprehensive evaluation method for the sudden change series based on the exposure degree, the sensitivity and the disaster prevention and reduction capability, so that the comprehensive evaluation method can provide scientific, standard and guidance for the government to establish a flood emergency plan, and ...

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Номер записи: 22
12-03-2014 дата публикации

Water cooler

Номер: CN103629953A
Автор: GAO YUQIN
Принадлежит:

The invention relates to a serial pipe type water cooler used for conducting heat exchange on cooling water of a high-power electronic component through air. The water cooler comprises a cuboid shell, wherein an axial flow fan is mounted on an air outlet of the top of the shell, an air inlet is formed in a side plate of the lower portion of the shell, a heat exchange assembly is arranged inside the shell, the heat exchange assembly is supported at the position above the air inlet through a cross beam, the heat exchange assembly comprises a plurality of S-shaped heating exchange tubes, and heat exchange fins are arranged on the outer walls of the heating exchange tubes. The water cooler has the advantages that due to the fact that the heat exchange tubes are provided with the heat exchange fins, the heat exchange area is increased, hot water passes through the tube walls of the heat exchange tubes, so that heat is transmitted to the heat exchange fins, air sweeps past the heat exchange fins ...

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Номер записи: 23
22-08-2023 дата публикации

Nonlinear seismic oscillation damage analysis method for reinforced concrete sluice-foundation-water body system

Номер: CN116628801A
Автор: CHENG CHENG, GUO BOWEN, ZHANG CHUNLIN, SONG LI, SUO LEI, FAN BING, HE YUAN, CHANG FANGFANG, MA AO, LI HONGZHI, CHI SHUAI, WU WENXIANG, GAO YUQIN, JIANG FUPING, SUN FENGHUI, WANG CHENG, YU YUANBAO, XIAO YONGZHI, YANG ZHIGANG, WANG DEHUA, ZHA YANGGUANG
Принадлежит:

The invention discloses a method for analyzing nonlinear seismic oscillation damage of a reinforced concrete sluice-foundation-water body system, which comprises the following steps of: establishing a three-dimensional finite element model of a sluice chamber structure comprising a foundation, a water body, a sluice pier, a sluice bottom plate, a steel sluice gate, an upper hoist room structure and reinforcing steel bars according to the structural characteristics of the sluice chamber structure, and simulating the nonlinear seismic oscillation damage of the reinforced concrete sluice-foundation-water body system by adopting a finite element numerical simulation technology; on the basis of viscoelastic artificial boundary conditions, an infinite foundation radiation damping effect, concrete dynamic damage, a bonding slippage effect of reinforced concrete and a fluid-solid coupling effect of a water body and a water gate structure are considered, and nonlinear seismic oscillation damage ...

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Номер записи: 24
03-12-2014 дата публикации

Phase-shifting circuit

Номер: CN104184432A
Автор: GAO YUQIN
Принадлежит:

Provided is a phase-shifting circuit. The phase-shifting circuit can conduct 90-degree phase shifting on input alternating-current voltage signals and is used for measuring reactive power or reactive currents in a single-phase alternating-current circuit. The phase-shifting circuit comprises a shaping circuit body, a waveform conversion circuit body, an extracting circuit body and a polarity distinguishing circuit body. The shaping circuit body enables the input alternating-current voltage signals to be shaped into alternating-current square signals Ui, the waveform conversion circuit body enables the alternating-current square signals to be converted into triangular wave signals Ug, the extracting circuit body is used for extracting alternating-current components in the triangular wave signals, and the polarity distinguishing circuit body conducts polarity distinguishing on the alternating-current components in the triangular wave signals and can output square signals Uo which lag behind ...

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Номер записи: 25
01-07-2015 дата публикации

Wear-resistant rotating compensator

Номер: CN104747850A
Автор: GAO YUQIN
Принадлежит:

A wear-resistant rotating compensator is used for compensating for thermal expansion and cold contraction of a high pressure hot water pipeline and comprises an outer cylinder (1) and an inner pipe (2). A flange (3) is arranged at the right end of the outer cylinder, and the left end of the inner pipe is located in the outer cylinder. The wear-resistant rotating compensator is characterized in that a sealing sleeve (4) is arranged at the left end of the inner pipe in a sleeving mode, a flange which extends in the radial direction and located at the right end of the sealing sleeve is arranged on the inner pipe in a sleeving mode, and a locating disc (6) is attached to the flange in a pressing mode; the sealing sleeve is made of silicon rubber, the left end of a sleeve body of the sealing sleeve is fastened to the inner pipe through an annular hoop (5), and a radial gap is reserved between the sleeve body of the sealing sleeve and the outer cylinder. The wear-resistant rotating compensator ...

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Номер записи: 26
07-01-2015 дата публикации

Corrosion-resistant leakage-free valve

Номер: CN104265982A
Автор: GAO YUQIN
Принадлежит:

A corrosion-resistant leakage-free valve comprises a cup-shaped shell (1) and a valve element. The tube wall of an inlet tube is fixedly connected with a guide sleeve (3) through a plurality of ribs (4). The whole valve element is of a shape like the Chinese character 'gan' comprising a magnetic plate (6), a valve flap (7) and a guide shaft (8). The guide shaft is inserted into the guide sleeve in a matched manner. A cup-shaped bonnet is connected to the opening (11) of the shell in a sealed manner. An E-shaped magnetic core is disposed in the bonnet. A magnet exciting coil sleeves the core part of the magnetic core. When the magnet exciting coil is powered, the magnetic plate can be attracted towards the magnetic core. The corrosion-resistant leakage-free valve has the advantages that the valve element is driven to move by the magnetic field force generated by the magnet exciting coil, the problem that fluid in the valve leaks along a valve rod in the prior art is solved, and the structure ...

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Номер записи: 27
12-03-2014 дата публикации

Temperature controller of air cooler

Номер: CN103629975A
Автор: GAO YUQIN
Принадлежит:

The invention relates to a temperature controller of an air cooler. The temperature controller comprises a temperature sensor for inducting hot fluid outlet temperature, a temperature sampling circuit, an amplifying circuit and a motor speed regulation module. Corresponding frequency signals can be output according to the outlet temperature of hot fluid to change the rotating speed of a motor, and therefore the induced air capacity of the air cooler is changed to control the outlet temperature of the hot fluid. The temperature controller is simple in circuit structure, low in manufacturing cost and reliable in temperature control. The control precision of the cooling temperature of the air cooler can be improved, and electric energy consumption can be lowered.

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Номер записи: 28
01-10-2014 дата публикации

Measuring method of regeneration point of internal combustion engine tail gas filter

Номер: CN104074582A
Автор: GAO YUQIN
Принадлежит:

Disclosed is a measuring method of a regeneration point of an internal combustion engine tail gas filter. The measuring method of the regeneration point of the internal combustion engine tail gas filter is used to judge the regeneration point of the internal combustion engine tail gas filter so as to timely regenerate the internal combustion engine tail gas filter. Devices used in the measuring method of the regeneration point of the internal combustion engine tail gas filter comprise a tail gas filter (2) connected with an air inlet pipe (1) and a pressure reference pipe (4) which has a certain resistance coefficient. The arrangement structure of the devices used in the measuring method of the regeneration point of the internal combustion engine tail gas filter is characterized in that an electric valve (5) is connected with an exhaust pipe (3) of the tail gas filter (2), the pressure reference pipe (4) is connected with an pipeline of the exhaust pipe (3), which is located between the ...

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Номер записи: 29
14-05-2014 дата публикации

Optical measuring device and optical measuring method

Номер: CN103792190A
Автор: GAO YUQIN, LIU CHAOHUI, ZHENG YIKAI, WANG SHICHANG, WANG DAXIANG
Принадлежит:

The invention discloses an optical measuring device, comprising at least one light emitting unit, a carrier, at least one lens and at least a photodetector. The light emitting unit is used for emitting a light beam. The carrier is arranged on the transmission path of the light beam, and comprises a plurality of accommodation spaces, which cut into the transmission path of the light beam in turns. The lens is arranged on the transmission path of the light beam, and is located between the light emitting unit and the carrier. The orthographic projection of the lens onto the carrier is a polygon, wherein when one of the accommodation spaces cuts into the transmission path of the light beam, perpendicular bisector of each side of the polygon does not overlap with adjacent accommodation spaces. The photodetector is arranged on the transmission path of the light beam from the carrier to detect beam. An optical measuring method is also provided.

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Номер записи: 30
01-07-2015 дата публикации

Maintenance-free rotating compensator

Номер: CN104747853A
Автор: GAO YUQIN
Принадлежит:

A maintenance-free rotating compensator comprises an outer pipe (1) and an inner pipe (2) and is characterized in that a flange (5) is arranged in the middle of the inner pipe, a locating ring (4) and a sealing sleeve (3) are sequentially arranged on the right side of the flange in a sleeving mode, and the pipe portion of the sealing sleeve is in sealing contact with the outer circle of the inner pipe; the pipe portion of the sealing sleeve extends into the outer pipe, a gap is reserved between the pipe portion of the sealing sleeve and the inner wall of the outer pipe, a flange (7) is arranged at the left end of the outer pipe, and the left end of the sealing sleeve is located on the left side of the flange along a convex edge which extends in the radial direction; multiple bolts (8) penetrate through the locating ring, the convex edge of the sealing sleeve and the flange, a nut located at the left end of the bolt is screwed up so that the convex edge of the sealing sleeve presses the ...

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Номер записи: 31
15-10-2014 дата публикации

End surface cutting clamp for workpiece and manufacturing method of end surface cutting clamp

Номер: CN104097078A
Автор: GAO YUQIN
Принадлежит:

The invention relates to a clamp. The clamp comprises a disc (1) capable of being clamped by a chuck. The clamp is characterized in that a vertically outwards extending location core (2) is arranged at the circle center part of the disc; a vertical outwards extending driving rod (3) is arranged at the part deviated from the circle center of the disc; the location core is shaped like a Chinese character tu and comprises a table part (21) and a core part (22); the outer diameter of the core part is matched with the inner diameter of a workpiece hole; the length of the core part is slightly smaller than the length of the workpiece hole; the outer diameter of the table part is larger than the inner diameter of the workpiece hole; the driving rod can drive a workpiece to rotate; the workpiece is positioned by the core part of the clamp; the eccentric part of the workpiece is abutted against the driving rod of the clamp so as to drive the workpiece to rotate and finish end surface cutting; the ...

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Номер записи: 32
01-07-2015 дата публикации

High-sealability rotating compensator

Номер: CN104747852A
Автор: GAO YUQIN
Принадлежит:

A high-sealability rotating compensator is used for compensating thermal expansion and cold contraction of pressure pipelines and comprises an outer pipe (1), an inner pipe (2) and a sealing cover (4), the left end of the inner pipe stretches into the outer pipe, and the right edge of the outer pipe extends out of a sealing flange (3) in the radial direction. The high-sealability rotating compensator is characterized in that the sealing cover is provided with a first sealing part (41), a torsion part (42) and a second sealing part (43), the inner pipe is sleeved with the first sealing part and the torsion part, a positioning plate (6) on the inner pipe is sleeved with the second sealing part which is clamped to one end face of the sealing flange through a clamping device, the first sealing part is fixedly sealed at the left end of the inner pipe through a tightening device (5), a gap is reserved between the torsion part of the sealing cover and the inner wall of the outer pipe, and the ...

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Номер записи: 33
10-12-2014 дата публикации

Bus fire early warning and armored window glass bursting remote control system

Номер: CN104200598A
Автор: GAO YUQIN
Принадлежит:

The invention relates to a bus fire early warning and armored window glass bursting remote control system, comprising an intelligent gateway, a ZigBee network, a 3G network and a remote bus monitoring center. The intelligent gateway comprises a Leonardo processor with an ARM+DSP double-core architecture, a video collecting and decoding module and a display alarming module; the ZigBee network is composed of a coordinator node and a plurality of monitoring nodes. Each monitoring node monitors fire information such as temperature, smoke and gas, gives an alarm and controls the bursting of the armored glass in the case of emergency; the 3G network is used for transmitting video information, monitoring data and commands of the bus monitoring center which have been encoded and compressed. The ZigBee network combines real-time data monitoring with 3G network remote video transmission, thus achieving fire pre-warning and multistage alarming functions; in the case of emergency, the monitoring center ...

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Номер записи: 34
05-06-2020 дата публикации

Efficient wort oxygenating device

Номер: CN0210683732U
Автор: ZHAO YAN, WANG CHANGHU, WU HONGMING, ZHANG GUOJUN, GAO YUQIN
Принадлежит: SHANDONG SHENDONG FERMENTATION EQUIPMENT CO LTD, SHANDONG SHENDONG FERMENTATION EQUIPMENT CO., LTD.

The utility model discloses an efficient wort oxygenating device which comprises a heat exchanger, an outlet of the heat exchanger is connected with a vertically-arranged venturi tube, and an outlet of the venturi tube is connected with a first quick-opening valve through a first pipeline and connected with a yeast adding tank in parallel. The venturi tube comprises an inlet pipeline, a necking pipeline and a diffusion pipeline; an inflating head mechanism is arranged on the necking pipeline; the inflation head mechanism is composed of an oxygenation sleeve, an oxygenation connector and a connector ring. A channel is formed in the center of the oxygenating sleeve along the center line; an annular groove is formed in the central position of the outer wall of the oxygenating sleeve; eight oxygen inlet holes are uniformly distributed at the bottom of the groove along a circle of the peripheral wall of the oxygenating sleeve; the center line of the oxygen inlet hole is perpendicular to thecenter ...

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Номер записи: 35
19-02-2014 дата публикации

Oil cooler

Номер: CN103591273A
Автор: GAO YUQIN
Принадлежит:

An oil cooler is used for cooling engine oil of an automobile gearbox and comprises a plurality of heat exchange assemblies (9) which are stacked together and used for performing heat exchange on an oil body. The oil cooler is integrally sealed and is characterized in that every heat exchange assembly is composed of an upper shell (2) and a lower shell (3), the upper shell and the lower shell are connected to form a flat cuboid shell, a sleeve-shaped inlet pipe (4) and a sleeve-shaped outlet pipe (5) are vertically extended from two ends of the upper shell and the lower shell, and protruded strip-type heat dissipation grooves are formed in the horizontal surfaces of the upper shell and the lower shell through pressing along the length direction at equal intervals. The structure of every heat exchange assembly enables the contact area of the oil body and the shell to be larger than the contact area of a cylindrical shell of the same volume, meanwhile, the trip-type heat dissipation grooves ...

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Номер записи: 36
04-08-2023 дата публикации

Analysis method for anti-seismic property of aged reinforced concrete sluice structure

Номер: CN116541934A
Автор: CHENG CHENG, GUO BOWEN, ZHANG CHUNLIN, SONG LI, SUO LEI, FAN BING, MA AO, CHANG FANGFANG, HE YUAN, WANG YUNZHE, GAO YUQIN, SHI JIAQI, LI TONG, ZHU SHENG, SUN FENGHUI, WANG CHENG, YU YUANBAO, XIAO YONGZHI, YANG ZHIGANG, WANG DEHUA, ZHA YANGGUANG
Принадлежит:

The invention discloses a method for analyzing the anti-seismic property of an aged reinforced concrete water gate structure, which comprises the following steps of: establishing a three-dimensional finite element model of the water gate chamber structure comprising a foundation, a water body, a gate pier, a gate bottom plate, a steel gate, an upper hoist room structure and reinforcing steel bars according to the characteristics of the water gate chamber structure; the influence of concrete carbonization and steel bar corrosion is considered, nonlinear seismic oscillation damage analysis is carried out on the aged water gate structure, and the influence mechanism of the aging effect on the anti-seismic property of the water gate structure is clarified. According to the method, the influence of the aging effect on the anti-seismic performance of the water gate structure can be accurately and scientifically reflected, and the blank of anti-seismic capacity analysis of the existing aged water ...

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Номер записи: 37
05-06-2020 дата публикации

Beer fermentation tank

Номер: CN0210683735U
Автор: ZHAO YAN, WANG CHANGHU, WU HONGMING, ZHANG GUOJUN, GAO YUQIN
Принадлежит: SHANDONG SHENDONG FERMENTATION EQUIPMENT CO LTD, SHANDONG SHENDONG FERMENTATION EQUIPMENT CO., LTD.

The embodiment of the utility model discloses a beer fermentation tank. The device comprises a fermentation tank, a bottom liquid outlet of the fermentation tank is connected with an electromagnetic three-way valve, one outlet of the electromagnetic three-way valve is connected with a top liquid inlet of a hops adding tank, a hops filter screen is horizontally arranged in the hops adding tank, a bottom liquid outlet of the hops adding tank is connected with a liquid pump, and the liquid pump is connected with the fermentation tank through a pipeline. The beer fermentation tank disclosed by theutility model is provided with the external hops adding tank; firstly, hops are added into a hops adding tank; white hop addition, the wort flows into the hops adding tank through the height difference and then returns to the fermentation tank through the pump, so that effective components of the hops enter the wort, the wort forms closed circulation between the hops adding tank and the fermentation ...

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Номер записи: 38
29-10-2014 дата публикации

Reactive current detection circuit

Номер: CN104122433A
Автор: GAO YUQIN
Принадлежит:

The invention discloses a reactive current detection circuit. The reactive current detection circuit is used for a reactive current measurement on a three-phase alternating-current circuit, and comprises a switch circuit used for controlling the turn-on and cut-off of optical couplers, and a reactive current formation circuit, wherein the switch circuit is used for controlling the turn-on and cut-off of the phototriodes of the optical couplers by taking a line voltage UBC as an input signal, when the phototriodes are turned, a line current signal passes through, and the passed current signal is the measured reactive current signal. The reactive current detection circuit has the following characteristics that: with the adoption of the optical coupling devices, the voltage signal of the line voltage UBC has no electrical contact with the line current IA signal, thus avoiding the mutual interference therebetween, and reducing the measurement errors of a reactive current; the circuit is simple ...

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Номер записи: 39
16-04-2014 дата публикации

Measurement circuit of solution electrical conductivity

Номер: CN103728497A
Автор: GAO YUQIN
Принадлежит:

The invention relates to a measurement circuit of solution electrical conductivity. According to the measurement circuit of the solution electrical conductivity, a 555 time base integrated circuit IC, a resistor R1, a resistor R2, a capacitor C, a capacitor C1 and a conductivity electrode DDJ form a square-wave oscillator, an electronic switch controls a charging circuit and a discharge circuit of the capacitor C, so that current passing through the conductivity electrode is alternating current, and the frequency of output signals of the measurement circuit and the solution resistance in the conductivity electrode are in a corresponding relation. The measurement circuit of the solution electrical conductivity is simple in structure, can automatically compensate the errors generated by the capacitance effect and polarization in the measurement process, and has high measurement accuracy.

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Номер записи: 40
11-06-2014 дата публикации

Stepping motor control device

Номер: CN103856128A
Автор: GAO YUQIN
Принадлежит:

The invention relates to a stepping motor control device for controlling the rotation of a stepping motor. The stepping motor control device comprises a power amplifier for driving the stepping motor, and a signal generator for outputting a control signal to the power amplifier. The stepping motor control device is characterized in that the signal generator comprises a first voltage generation circuit (1) and a second voltage generation circuit (2) which can be used to generate different voltage values, and a first voltage output switching circuit (3) and a second voltage output switching circuit (4); wherein the first voltage generation circuit (1) and the second voltage generation circuit (2) are current addition operation circuits which are controlled by a single chip microcomputer and can be used to output a voltage Umcos alpha and a voltage Umsin alpha respectively, and power amplification is performed by the power amplifier, so the resultant magnetic field generated by the stepping ...

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Номер записи: 41
22-08-2023 дата публикации

Intelligent terminal adaptive access and interaction method, device and system

Номер: CN116633019A
Автор: FAN YI, ZHOU JUN, LIU MINGXIANG, CAI YUEMING, CHEN NA, CHEN CHEN, OU CHUANGANG, LIU XIALING, HE ZHAORUI, LU HONGYU, ZOU HANG, ZHOU QIANG, JIANG HAISHENG, SUN JIANDONG, WANG JIA, LU FAN, XING LING, ZHANG CHI, GAO YUQIN, TAN TAO, YANG TAO, YUE YOU, XU CHEN, ZHOU SHENGJIE, XU JINGTAO, SHA GUANGLIN
Принадлежит:

The invention discloses a self-adaptive access and interaction method, device and system for an intelligent terminal. The method comprises the following steps: judging the state of the intelligent terminal and the service type in the state; when the intelligent terminal is in different access states, the corresponding service types are different; subscribing or publishing related theme information by adopting a service quality strategy corresponding to the service type in the data distribution service; the related theme information is obtained from the intelligent terminal or an equipment self-description model of the intelligent terminal and equipment connected with the intelligent terminal, and is stored and transmitted based on a lightweight Json format. The problems that an existing communication mode cannot support the wide distribution range of a novel power distribution system, and collected and monitored data are numerous in type and large in quantity can be solved.

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Номер записи: 42
23-03-2018 дата публикации

Power factor setter

Номер: CN0207133683U
Автор: GAO YUQIN
Принадлежит: GAO YUQIN

The utility model provides a power factor setter, includes first transformer BK1, the second transformer BK2, resistive load RZ, power factor meter, and resistive load concatenates in A phase voltagereturn circuit, and first transformer BK1 primary connects in parallel in B phase voltage return circuit, and the second transformer BK2 primary connects in parallel in C phase voltage return circuit,and first transformer secondary coil is equipped with a plurality of taking a percentage, and the voltage of respectively taking a percentage is different, and the second transformer's structure is the same with first transformer, the positive order ground of taking a percentage on the first transformer is connected with a change over switch's stationary contact, and the second transformer is last takes a percentage and anti - order ground and be connected with the 2nd change over switch's stationary contact, and change over switch's cursor slide meets power factor meter's voltage signal input terminal ...

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Номер записи: 43
11-06-2014 дата публикации

Driver of stepping motor

Номер: CN103856127A
Автор: GAO YUQIN
Принадлежит:

The invention relates to a driver of a stepping motor. The driver is used for controlling the rotation of the stepping motor. The driver comprises a power amplifier used for driving the stepping motor and a signal generator used for outputting a control signal to the power amplifier. The driver is characterized in that the signal generator comprises voltage generation circuits (1,2) capable of generating different voltage values and voltage output switching circuits (3, 4); and the voltage generation circuits (1,2) are current addition operation circuits controlled by a single-chip microcomputer and can respectively output voltage Um Cos alpha and voltage Um sin alpha. After power amplification by the power amplifier, a combined magnetic field generated by a stepping motor winding is enabled to have constant magnetic field intensity. Meanwhile, through the combination of the magnetic field, the stepping angle of the stepping motor can be subdivided. The driver of the invention has the advantages ...

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Номер записи: 44
02-05-2023 дата публикации

Nail and breast surgery drainage fixator with limiting effect on breasts

Номер: CN116036390A
Автор: YANG WEN, LI ZHOU, HAN MIN, LIU LU, HE YIDAN, GAO YUQIN, LI HANBING, WANG XIAOQING
Принадлежит:

The invention relates to the technical field of medical apparatus and instruments, and discloses a thyroid and breast surgery drainage fixator which has a limiting effect on breasts and comprises a cover body, a cutting edge, a limiting piece, a cylinder, a first bandage, a second bandage, a first barrel, a second barrel, a third barrel, an inserting block, an inserting groove, a penetrating hole, a pull rope and a spring. The multiple limiting pieces are arranged in the hollow cover body to limit and fix the breasts, meanwhile, the pull rope is arranged to connect the third barrel and the limiting pieces, the second barrel can be rotated to drive the third barrel to move, and therefore the multiple limiting pieces are driven to move at the same time, use is convenient, and the breast fixing effect is good; the electric heating wire is arranged to heat the inside of the cover body, and blood circulation of the breasts can be promoted.

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Номер записи: 45
18-06-2014 дата публикации

Nondestructive testing method for concrete structure with single measurable surface

Номер: CN103868992A
Автор: QIAO RUISHE, JIANG ENHUI, LIU ZHONG, ZHAO SHOUGANG, HE XIANFENG, SONG LI, LI JUNHUA, CHANG FANGFANG, LI NA, GAO YUQIN, HAO BOJIN, LU LISAN, YU YUANBAO, XIAO YONGZHI, ZHAO XIANFENG
Принадлежит:

The invention relates to a nondestructive testing technology of a concrete structure, and particularly relates to a nondestructive testing method for a concrete structure with the single measurable surface. A special energy triggering device is adopted to replace a small steel hammer of a Docter impact echo system, and comprises an impact ball, a gun barrel, an acceleration device, a triggering device and a gun shell; the impact ball collides the concrete surface, and generates a reflection wave which is transferred back to the concrete surface; the reflection wave is received by a neighboring receiver probe; the thickness or the defect depth of the structure concrete is determined by calculation. By adopting the detection method disclosed by the invention, the energy triggering device is adopted to replace manual knock, the defects of an existing Docter impact echo system in detecting the internal defects of the structure are overcome, the accuracy requirements of the Docter impact echo ...

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Номер записи: 46
25-10-2019 дата публикации

Cone cooling device

Номер: CN0209537431U
Автор: WANG CHANGHU, GAO YUQIN, WU HONGMING
Принадлежит: SHANDONG SHENDONG FERMENTATION EQUIPMENT CO LTD, SHANDONG SHENDONG FERMENTATION EQUIPMENT CO., LTD.

The utility model discloses a cone cooling device which comprises a cone-shaped barrel body, a first ring pipe and a second ring pipe are sleeved on the outer side of the cone-shaped barrel body, andthe second ring pipe is arranged below the first ring pipe. The first ring pipe and the second ring pipe are communicated through corrugated plate jackets, and the inner sides of the corrugated platejackets are attached to the outer wall of the conical barrel; a cooling liquid outlet pipe is arranged on the first ring pipe, and a cooling liquid access pipe is arranged on the second ring pipe. According to the utility model, the cooling speed of the mash in the conical barrel is more uniform, and the difference between the cooling speeds of the upper and lower layers of mash is smaller.

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Номер записи: 47
05-05-2023 дата публикации

Regional flood disaster risk evaluation method based on fuzzy clustering factors

Номер: CN116070911A
Автор: GAO YUQIN, WU JINGJING, GAO LI, LIU YUNPING, WU MING, XU MENGQI, XU JIAYING, WANG JIAN, TAN XILAN, ZHENG HANG
Принадлежит:

The invention discloses a regional flood disaster risk evaluation method based on a fuzzy clustering factor, and the method comprises the steps: collecting data, such as hydro meteorology and land utilization, of a research region, constructing a flood analysis model, and obtaining a disaster-inducing factor index; collecting population, nature and social economic development characteristic data in the research area, and selecting vulnerability indexes from the aspects of exposure, sensitivity and disaster prevention and reduction capability; constructing a regional flood disaster risk score evaluation model based on fuzzy clustering factors; and analyzing the research area by using the regional flood disaster risk evaluation model based on the fuzzy clustering factor. The regional flood disaster risk comprehensive evaluation method based on the fuzzy clustering factors is provided on the basis of flood disaster risk analysis and disaster-bearing body vulnerability analysis, scientific ...

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Номер записи: 48
29-10-2014 дата публикации

Electric bicycle charger

Номер: CN104124744A
Автор: GAO YUQIN
Принадлежит:

The invention provides an electric bicycle charger. The electric bicycle charger comprises a charging unit for charging a storage battery, a discharge unit for discharging the storage battery, a stop control unit for controlling the charging unit and the discharging unit to stop working according to the terminal voltage of the storage battery; the charging unit is a single-phase half-wave thyristor rectifier circuit and capable of providing an appropriate charging voltage in the positive half-cycle of the mains supply; the discharge unit is used for discharging the storage battery in the negative positive half-cycle of the mains supply; the voltage output by the thyristor is realized by changing a conduction angle; compared with a switching power source type voltage regulation, the power loss on the thyristor is much lower than that of a switching tube in a switching power source, and meanwhile, the thyristor rectifier circuit comprises less components so that the fault rate can be reduced ...

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Номер записи: 49