CN111448625A - 适用于压敏电阻的可外部控制的热脱扣装置、方法及应用 - Google Patents
适用于压敏电阻的可外部控制的热脱扣装置、方法及应用 Download PDFInfo
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- CN111448625A CN111448625A CN201880070882.5A CN201880070882A CN111448625A CN 111448625 A CN111448625 A CN 111448625A CN 201880070882 A CN201880070882 A CN 201880070882A CN 111448625 A CN111448625 A CN 111448625A
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- Prior art keywords
- piezoresistor
- heating element
- thermal
- controllable
- chip
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
- H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
- H01C1/144—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors the terminals or tapping points being welded or soldered
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C13/00—Resistors not provided for elsewhere
- H01C13/02—Structural combinations of resistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
- H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
- H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/12—Means for adjustment of "on" or "off" operating temperature
- H01H37/14—Means for adjustment of "on" or "off" operating temperature by anticipatory electric heater
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H61/00—Electrothermal relays
- H01H61/02—Electrothermal relays wherein the thermally-sensitive member is heated indirectly, e.g. resistively, inductively
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermistors And Varistors (AREA)
- Fuses (AREA)
Abstract
一种适用于压敏电阻的可外部控制的热脱扣装置,包括压敏电阻芯片(1)和热脱离器(2),还包括可控发热元件(3);热脱离器(2)的脱扣电极(21)与压敏电阻芯片(1)的电极(11)通过可熔的焊接材料(4)连接;可控发热元件(3)由外部控制终端控制进行发热,并将发热的热量传递至焊接材料(4)的焊接处,以熔化焊接材料(4),使热脱离器(2)的脱扣电极(21)与压敏电阻芯片(1)断开电连接。通过在外部控制可控发热元件(3)发热,以实现热脱离器(2)与压敏电阻芯片(1)的主动脱离,如,当发现压敏电阻芯片(1)劣化或其他元器件老化时,在外部控制终端的控制下,可控发热元件(3)可自主发热,使得焊接材料(4)熔化,热脱离器(2)与压敏电阻芯片(1)主动脱离,提高应用该压敏电阻的设备的安全可靠性。
Description
PCT国内申请,说明书已公开。
Claims (10)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2018/073637 WO2019140691A1 (zh) | 2018-01-22 | 2018-01-22 | 适用于压敏电阻的可外部控制的热脱扣装置、方法及应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111448625A true CN111448625A (zh) | 2020-07-24 |
CN111448625B CN111448625B (zh) | 2022-03-08 |
Family
ID=67301244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201880070882.5A Active CN111448625B (zh) | 2018-01-22 | 2018-01-22 | 适用于压敏电阻的可外部控制的热脱扣装置、方法及应用 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11145442B2 (zh) |
CN (1) | CN111448625B (zh) |
WO (1) | WO2019140691A1 (zh) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2147673Y (zh) * | 1992-12-26 | 1993-11-24 | 王川 | 分流式避雷器脱扣器及泄漏电流观测仪 |
CN101030466A (zh) * | 2006-03-03 | 2007-09-05 | 隆科电子(惠阳)有限公司 | 具有超温脱离机构和压敏电阻器的总成 |
CN101202137A (zh) * | 2006-12-15 | 2008-06-18 | 兴勤电子工业股份有限公司 | 具有热保护功能的压敏电阻 |
CN201247666Y (zh) * | 2008-06-17 | 2009-05-27 | 袁春 | 压敏模块装置 |
CN201374558Y (zh) * | 2009-01-23 | 2009-12-30 | 孙巍巍 | 一种新型浪涌保护器 |
CN201733089U (zh) * | 2010-08-04 | 2011-02-02 | 浙江雷泰电气有限公司 | 电涌保护器 |
US20110248816A1 (en) * | 2010-04-09 | 2011-10-13 | Abb France | Varistor comprising an electrode having a protruding portion forming a pole and protection device comprising such a varistor |
CN202178743U (zh) * | 2011-07-06 | 2012-03-28 | 广西地凯科技有限公司 | 一种压敏电阻劣化脱扣的装置 |
US20150280420A1 (en) * | 2014-03-28 | 2015-10-01 | Xiaomao MAO | Surge suppression device |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3742419A (en) * | 1971-09-30 | 1973-06-26 | Gen Electric | Integral sensor for monitoring a metal oxide varistor |
US6430019B1 (en) * | 1998-06-08 | 2002-08-06 | Ferraz S.A. | Circuit protection device |
FR2848353B1 (fr) * | 2002-12-10 | 2005-06-17 | Soule Protection Surtensions | Dispositif de protection contre des surtensions |
SI1743346T1 (sl) * | 2004-04-19 | 2011-04-29 | Abb France | Zaščitna naprava pred prenapetostjo s sredstvom za prekinitev obloka |
CN100370567C (zh) | 2005-02-05 | 2008-02-20 | 希珂尔电气有限公司 | 避免压敏电阻失效的装置及方法以及接地故障断路器 |
WO2007014302A2 (en) * | 2005-07-29 | 2007-02-01 | Tyco Electronics Corporation | Circuit protection device having thermally coupled mov overvoltage element and pptc overcurrent element |
US8836464B2 (en) * | 2009-06-24 | 2014-09-16 | Ceramate Technical Co., Ltd. | Explosion-proof and flameproof ejection type safety surge-absorbing module |
US9165702B2 (en) * | 2011-03-07 | 2015-10-20 | James P. Hagerty | Thermally-protected varistor |
JP5981537B2 (ja) * | 2011-06-17 | 2016-08-31 | リッテルフューズ,インコーポレイティド | 熱金属酸化物バリスタ回路保護デバイス |
CN202405029U (zh) | 2012-01-12 | 2012-08-29 | 上海金临电子科技有限公司 | 带温度传感器的压敏电阻防护装置 |
DE102013019391B4 (de) * | 2013-04-11 | 2022-04-28 | Dehn Se | Anordnung zum Überlastschutz von Überspannungsschutzgeräten |
TWI545605B (zh) * | 2013-12-13 | 2016-08-11 | 勝德國際研發股份有限公司 | 整合式突波吸收裝置 |
-
2018
- 2018-01-22 US US16/956,737 patent/US11145442B2/en active Active
- 2018-01-22 CN CN201880070882.5A patent/CN111448625B/zh active Active
- 2018-01-22 WO PCT/CN2018/073637 patent/WO2019140691A1/zh active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2147673Y (zh) * | 1992-12-26 | 1993-11-24 | 王川 | 分流式避雷器脱扣器及泄漏电流观测仪 |
CN101030466A (zh) * | 2006-03-03 | 2007-09-05 | 隆科电子(惠阳)有限公司 | 具有超温脱离机构和压敏电阻器的总成 |
CN101202137A (zh) * | 2006-12-15 | 2008-06-18 | 兴勤电子工业股份有限公司 | 具有热保护功能的压敏电阻 |
CN201247666Y (zh) * | 2008-06-17 | 2009-05-27 | 袁春 | 压敏模块装置 |
CN201374558Y (zh) * | 2009-01-23 | 2009-12-30 | 孙巍巍 | 一种新型浪涌保护器 |
US20110248816A1 (en) * | 2010-04-09 | 2011-10-13 | Abb France | Varistor comprising an electrode having a protruding portion forming a pole and protection device comprising such a varistor |
CN201733089U (zh) * | 2010-08-04 | 2011-02-02 | 浙江雷泰电气有限公司 | 电涌保护器 |
CN202178743U (zh) * | 2011-07-06 | 2012-03-28 | 广西地凯科技有限公司 | 一种压敏电阻劣化脱扣的装置 |
US20150280420A1 (en) * | 2014-03-28 | 2015-10-01 | Xiaomao MAO | Surge suppression device |
Also Published As
Publication number | Publication date |
---|---|
US11145442B2 (en) | 2021-10-12 |
WO2019140691A1 (zh) | 2019-07-25 |
US20200402689A1 (en) | 2020-12-24 |
CN111448625B (zh) | 2022-03-08 |
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