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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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Применить Всего найдено 14. Отображено 11.
19-01-2017 дата публикации

Over-current protection device

Номер: US20170018339A1
Автор: Chun Teng Tseng, David Shau Chew Wang, Tsungmin Su, Yao Te Chang
Принадлежит: Polytronics Technology Corp

An over-current protection device comprises a PTC device and a heating element operable to heat the PTC device. The PTC device contains crystalline polymer and metal or ceramic conductive filler dispersed therein. The PTC device has a resistivity less than 0.1 Ω·cm. The over-current protection device has the relation: It (heating)<Ih (60° C.)×10%, where Ih (60° C.) is a hold current of the over-current protection device at 60° C. when the heating element is not activated; It (heating) is a trip current of the over-current protection device when the heating element is activated to heat the PTC device. The PTC device has high hold current, thereby allowing a battery containing the device can be fast charged with a large current. In a specific situation, the heating element heats the PTC device to decrease the hold current of the over-current protection device of low resistivity, and accordingly the PTC device can trip by a small current.

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Номер записи: 1
05-04-2018 дата публикации

Protection device and circuit protection apparatus containing the same

Номер: US20180097352A1
Автор: David Shau Chew Wang, Tongcheng TSAI, Tsungmin Su
Принадлежит: Polytronics Technology Corp

A protection device comprises a first planar substrate, a second planar substrate, a heating element, a fusible element and an absorbent element. The first substrate comprises a first surface, and the second substrate comprises a second surface facing the first surface. The heating element is disposed on the first surface, and the fusible element is disposed above the heating element. The absorbent element is disposed on the second surface and above the fusible element. When over-current or over-temperature occurs, the heating element heats up to melt and blow the fusible element and the absorbent element absorbs melted metal of the fusible element.

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Номер записи: 2
25-04-2019 дата публикации

PROTECTION DEVICE AND CIRCUIT PROTECTION APPARATUS CONTAINING THE SAME

Номер: US20190122847A1
Автор: SU Tsungmin, TSAI Tongcheng, WANG DAVID SHAU CHEW
Принадлежит:

A protection device comprises a first planar substrate, a second planar substrate, a heating element and a fusible element. The second planar substrate is attached to the underside of the first planar substrate to form a composite structure. The heating element comprises an insulating layer and a heating layer disposed thereon. The heating element is disposed on the first planar substrate, and the insulating layer is disposed between the first planar substrate and the heating layer. The fusible element is disposed above the heating element. The heating element heats up to blow the fusible element in the event of over-voltage or over-temperature. 1. A protection device , comprising:a first planar substrate;a second planar substrate attached to a lower surface of the first planar substrate to form a composite structure;a heating element comprising an insulating layer and a heating layer disposed on the insulating layer, the heating element being disposed on the first planar substrate, the insulating layer being disposed between the first planar substrate and the heating layer; anda fusible element disposed above the heating element;wherein the heating element heats up to blow the fusible element in the event of over-voltage or over-temperature.2. The protection device of claim 1 , wherein the insulating layer has an area capable of uniformly dissipating the heat of the heating layer to avoid cracking on the insulating layer.3. The protection device of claim 1 , wherein the area of the insulating layer is 1-2 times that of the heating layer.4. The protection device of claim 1 , further comprising two external electrodes connecting to two ends of the fusible element claim 1 , the external electrode having a larger cross-sectional area than the fusible element.5. The protection device of claim 4 , wherein the external electrode has a recess to receive the end of the fusible element.6. The protection device of claim 1 , further comprising an intermediate electrode ...

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Номер записи: 3
09-06-2016 дата публикации

OVER-CURRENT PROTECTION DEVICE AND PROTECTIVE CIRCUIT MODULE CONTAINING THE SAME

Номер: US20160163429A1
Автор: CHEN PAO HSUAN, FANG CHAO WEI, SU Tsungmin
Принадлежит:

An over-current protection device comprises a PTC device and a first external lead. The PTC device comprises first and second conductive layers and a PTC material layer laminated therebetween. The first conductive layer forms an upper surface of the PTC device. The first external lead has a lower surface soldered to the first conductive layer. The lower surface is provided with a plurality of protrusions of which tops are in direct contact with the first conductive layer to form a gap between the first external lead and the first conductive layer. Solder paste fills the gap to form an electrically conductive connecting layer. The over-current protection device may further comprise a second external lead with protrusions soldered to the second conductive layer to form an axial-lead or a radial-lead type device. 1. An over-current protection device , comprising:a PTC device comprising first and second conductive layers and a PTC material layer, the first conductive layer forming an upper surface of the PTC device, the PTC material layer being disposed between the first and second conductive layers to form a laminated structure; anda first external lead having a lower surface connecting to the first conductive layer by solder paste, the first external lead comprising a plurality of protrusions on the lower surface, tops of the protrusions being in direct contact with the first conductive layer to form a gap between the first external lead and the first conductive layer, the gap being filled with solder paste to form an electrically conductive connecting layer.2. The over-current protection device of claim 1 , wherein the second conductive layer forms a lower surface of the PTC device to be soldered onto a circuit board.3. The over-current protection device of claim 1 , wherein the gap has a thickness in the range of 0.01 to 0.16 mm.4. The over-current protection device of claim 1 , wherein the first and second conductive layers are in direct contact with upper and ...

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Номер записи: 4
23-05-2019 дата публикации

PROTECTION DEVICE AND CIRCUIT PROTECTION APPARATUS CONTAINING THE SAME

Номер: US20190157031A1
Автор: SU Tsungmin, TSAI Tongcheng, WANG DAVID SHAU CHEW
Принадлежит:

A protection device comprises a substrate, a fusible element and a heating element. The substrate has a surface provided with a first electrode and a second electrode. The fusible element comprises a first metal layer and a second metal layer disposed on the first metal layer. The melting temperature of the second metal layer is higher than that of the first metal layer. The fusible element connects to the first and second electrodes through solder. The solder has a melting temperature lower than that of the first metal layer. The heating element heats up to blow the fusible element in the event of over-voltage or over-temperature. 1. A protection device , comprising:a substrate having a surface provided with a first electrode and a second electrode;a fusible element comprising a first metal layer and a second metal layer, the second metal layer being disposed on the first metal layer, the second metal layer having a melting temperature higher than that of the first metal layer, the first metal layer being an inner layer of the fusible element, the second metal layer being an outer layer of the fusible element; anda heating element which heats up to blow the fusible element in the event of over-voltage or over-temperature;wherein the second metal layer of the fusible element connects to the first electrode and the second electrode through solder, and the solder has a melting temperature lower than that of the first metal layer.2. The protection device of claim 1 , wherein the melting temperature of the second metal layer is higher than a temperature during reflow performed afterwards.3. The protection device of claim 2 , wherein the second metal layer restrains the first metal layer from flowing during reflow.4. The protection device of claim 1 , wherein the first metal layer comprises tin or alloys thereof.5. The protection device of claim 1 , wherein the second metal layer comprises silver claim 1 , copper claim 1 , gold claim 1 , nickel claim 1 , zinc or alloys ...

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Номер записи: 5
23-11-2017 дата публикации

PROTECTION DEVICE AND CIRCUIT PROTECTION APPARATUS CONTAINING THE SAME

Номер: US20170338645A1
Автор: SU Tsungmin, TSAI Tongcheng, WANG DAVID SHAU CHEW
Принадлежит:

A protection device comprises a first substrate, a second substrate, a fusible element and a heating element. The first substrate comprises a first surface, and the second substrate comprises a second surface facing the first surface. The fusible element is disposed on the first surface of the first substrate, and the heating element is disposed on the second surface of the second substrate and is disposed above the fusible element. When over-voltage or over-temperature occurs, the heating element heats up to blow the fusible element and thereby providing over-voltage and over-temperature protection. 1. A protection device , comprising:a first substrate comprising a first surface;a second substrate comprising a second surface facing the first surface;a fusible element disposed on the first surface of the first substrate; anda heating element disposed on the second surface of the second substrate and above the fusible element;wherein the heating element heats up to blow the fusible element in the event of over-voltage or over-temperature;wherein the fusible element comprises low-melting metal and the low-melting metal is absorbed upwards and downwards when the fusible element is blown.2. (canceled)3. The protection device of claim 1 , further comprising a metal layer disposed on or above the fusible element to upwards absorb the low-melting metal.4. The protection device of claim 3 , wherein the fusible element is in direct contact with the metal layer claim 3 , or the fusible element is distanced from the metal layer by a gap.5. The protection device of claim 4 , wherein the gap is filled with solder to connect the fusible element and the metal layer.6. The protection device of claim 4 , wherein the gap is equal to or less than 1.5 mm.7. The protection device of claim 1 , wherein the first substrate is distanced from the second substrate by 0.03-1.5 mm.8. The protection device of claim 1 , wherein the protection device has a thickness of 0.2-2 mm.9. The protection ...

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Номер записи: 6
22-11-2018 дата публикации

Surface-mountable over-current protection device

Номер: US20180336980A1
Автор: David Shau Chew Wang, Tsungmin Su
Принадлежит: Polytronics Technology Corp

A surface-mountable over-current protection device comprises at least one chip, a first lead and a second lead. The chip comprises a PTC material layer and two metal electrode layers disposed on upper and lower surfaces of the PTC material layer. The first lead is bent into multiple portions comprising a first electrode connecting portion connecting to one of the two metal electrode layers of the at least one chip and a first soldering portion for surface-mounting. The second lead is bent into multiple portions comprising a second electrode connecting portion connecting to another one of the two electrode layers of the at least one chip and a second soldering portion for surface-mounting. The PTC material layer comprises crystalline polymer and conductive filler dispersed therein, and the conductive filler has a resistivity less than 500 μΩ·cm. The surface-mountable over-current protection device can withstand a cycle life test of 300 cycles at 20V/40 A without blowout.

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Номер записи: 7
12-01-2021 дата публикации

Protection device and circuit protection apparatus containing the same

Номер: US10892130B2
Автор: David Shau Chew Wang, Tongcheng TSAI, Tsungmin Su
Принадлежит: Polytronics Technology Corp

A protection device comprises a first planar substrate, a second planar substrate, a heating element and a fusible element. The second planar substrate is attached to the underside of the first planar substrate to form a composite structure. The heating element comprises an insulating layer and a heating layer disposed thereon. The heating element is disposed on the first planar substrate, and the insulating layer is disposed between the first planar substrate and the heating layer. The fusible element is disposed above the heating element. The heating element heats up to blow the fusible element in the event of over-voltage or over-temperature.

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Номер записи: 8
23-11-2017 дата публикации

Schutzvorrichtung und Schaltkreisschutzgerät aufweisend dasselbe

Номер: DE102017110897A1
Автор: David Shau Chew Wang, Tong Cheng Tsai, Tsungmin Su
Принадлежит: Polytronics Technology Corp

Eine Schutzvorrichtung (10) weist ein erstes Substrat (13), ein zweites Substrat (14), ein schmelzbares Element (35) und ein Heizelement (45) auf. Das erste Substrat (13) weist eine erste Oberfläche (131) auf und das zweite Substrat (14) weist eine zweite Oberfläche (141) auf, welche der ersten Oberfläche (131) zugewandt ist. Das schmelzbare Element (35) ist auf der ersten Oberfläche (131) des ersten Substrats (13) angeordnet und das Heizelement (45) ist auf der zweiten Oberfläche (141) des zweiten Substrats (14) angeordnet und ist über dem schmelzbaren Element (35) angeordnet. Wenn Überspannung oder Übertemperatur auftritt, heizt sich das Heizelement (45) auf, um das schmelzbare Element (35) durchzubrennen und dadurch einen Überspannung- und Übertemperatur-Schutz bereitzustellen.

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Номер записи: 9
15-05-2018 дата публикации

Protection device and circuit protection apparatus containing the same

Номер: US09972991B2
Автор: David Shau Chew Wang, Tongcheng TSAI, Tsungmin Su
Принадлежит: Polytronics Technology Corp

A protection device comprises a first substrate, a second substrate, a fusible element and a heating element. The first substrate comprises a first surface, and the second substrate comprises a second surface facing the first surface. The fusible element is disposed on the first surface of the first substrate, and the heating element is disposed on the second surface of the second substrate and is disposed above the fusible element. When over-voltage or over-temperature occurs, the heating element heats up to blow the fusible element and thereby providing over-voltage and over-temperature protection.

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Номер записи: 10
13-06-2017 дата публикации

Over-current protection device and protective circuit module containing the same

Номер: US09679683B2
Автор: Chao Wei Fang, Pao Hsuan CHEN, Tsungmin Su
Принадлежит: Polytronics Technology Corp

An over-current protection device comprises a PTC device and a first external lead. The PTC device comprises first and second conductive layers and a PTC material layer laminated therebetween. The first conductive layer forms an upper surface of the PTC device. The first external lead has a lower surface soldered to the first conductive layer. The lower surface is provided with a plurality of protrusions of which tops are in direct contact with the first conductive layer to form a gap between the first external lead and the first conductive layer. Solder paste fills the gap to form an electrically conductive connecting layer. The over-current protection device may further comprise a second external lead with protrusions soldered to the second conductive layer to form an axial-lead or a radial-lead type device.

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Номер записи: 11