CN103617930A - Low voltage circuit breaker - Google Patents
Low voltage circuit breaker Download PDFInfo
- Publication number
- CN103617930A CN103617930A CN201310593334.XA CN201310593334A CN103617930A CN 103617930 A CN103617930 A CN 103617930A CN 201310593334 A CN201310593334 A CN 201310593334A CN 103617930 A CN103617930 A CN 103617930A
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- contact
- circuit breaker
- voltage circuit
- release
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Abstract
The invention discloses a low voltage circuit breaker. But most of traditional low voltage circuit breakers in the prior art have effect on only one of overload, short circuits and voltage loss and are single in function. The low voltage circuit breaker comprises a reset spring (1), a contact A (2), a contact B (3) and a contact C (4), wherein the reset spring is connected with a free releasing mechanism, the free tripping mechanism is connected with a lever (5), the contact A and the contact B are connected with an undervoltage release (6) through wires, the lever is respectively connected with a bimetallic strip (7) and a shunt release (8), a heating resistance wire (9) is installed below the bimetallic strip and is connected with an overcurrent release (10), and the overcurrent release is connected with the contact C. The low voltage circuit breaker is used for automatically switching off a circuit when overload, short circuits and voltage loss happen to the circuit.
Description
technical field:
the present invention relates to a kind of low-voltage circuit breaker.
background technology:
low-voltage circuit breaker is that a kind of existing hand switch effect can be transshipped again and the electrical equipment of short-circuit protection automatically; Be a kind of not only can connection and disjunction normal load electric current, motor is made electric current and overload current, and can connect the device for switching with breaking current.But current low-voltage circuit breaker, traditional low-voltage circuit breaker just has a kind of function in overload, short circuit and decompression, function singleness mostly.
summary of the invention:
the object of this invention is to provide a kind of low-voltage circuit breaker.
above-mentioned object realizes by following technical scheme:
a kind of low-voltage circuit breaker, its composition comprises: back-moving spring, contact A, contact B, contact C, described back-moving spring is connected with free tripping mechanism, described free tripping mechanism is connected with lever, described contact A, described contact B are connected with device for under-voltage releasing equipment by wire, described lever is connected with bimetal leaf, shunt release respectively, the below of described bimetal leaf is provided with resistive heater, described resistive heater is connected with overcurrent release by wire, and described overcurrent release is connected with described contact C.
described low-voltage circuit breaker, described free tripping mechanism comprises slide fastener, drag hook, described drag hook is connected with rotation axis.
described low-voltage circuit breaker, described device for under-voltage releasing equipment, described shunt release, described overcurrent release are connected with armature respectively, and the armature of the armature of described device for under-voltage releasing equipment, described shunt release is connected with spring.
described low-voltage circuit breaker, described shunt release is connected with described contact C by switch.
beneficial effect:
the present invention when circuit is short-circuited or seriously transship, overcurrent release adhesive armature 7; When circuit long term overloading, resistive heater adds thrermostatic bimetal-plate is bent upwards it; When circuit decompression or when under-voltage, the coil suction of device for under-voltage releasing equipment is not enough, and armature moves upward under spring-force driven dual; Three can cause having contact with upwards rotation, and main contact is at the effect open circuit of spring.
the present invention makes full use of the permission overload capacity of electric equipment, the scope of dwindling as much as possible fault outage.Under circuit normal running conditions as frequently not the connecting and disjunction use of circuit, and at circuit, transship, minute deenergizing automatically when short circuit and decompression.
accompanying drawing explanation:
accompanying drawing 1 is structural representation of the present invention.
embodiment:
embodiment 1:
a kind of low-voltage circuit breaker, its composition comprises: back-moving spring 1, contact A, piece number: 2, contact B3, contact C, piece number: 4, described back-moving spring is connected with free tripping mechanism, described free tripping mechanism is connected with lever 5, described contact A, described contact B is connected with device for under-voltage releasing equipment 6 by wire, described lever respectively with bimetal leaf 7, shunt release 8 connects, the below of described bimetal leaf is provided with resistive heater 9, described resistive heater is connected with overcurrent release 10 by wire, described overcurrent release is connected with described contact C.
embodiment 2:
according to the low-voltage circuit breaker described in embodiment 1, described free tripping mechanism comprises slide fastener 11, drag hook 12, and described drag hook is connected with rotation axis 13.
embodiment 3:
according to the low-voltage circuit breaker described in embodiment 1 or 2, described device for under-voltage releasing equipment, described shunt release, described overcurrent release are connected with armature 14 respectively, and the armature of the armature of described device for under-voltage releasing equipment, described shunt release is connected with spring 15.
embodiment 4:
according to the low-voltage circuit breaker described in embodiment 1 or 2, described shunt release is connected with described contact C by switch 16.
Claims (4)
1. a low-voltage circuit breaker, its composition comprises: back-moving spring, contact A, contact B, contact C, it is characterized in that: described back-moving spring is connected with free tripping mechanism, described free tripping mechanism is connected with lever, described contact A, described contact B are connected with device for under-voltage releasing equipment by wire, described lever is connected with bimetal leaf, shunt release respectively, the below of described bimetal leaf is provided with resistive heater, described resistive heater is connected with overcurrent release by wire, and described overcurrent release is connected with described contact C.
2. low-voltage circuit breaker according to claim 1, is characterized in that: described free tripping mechanism comprises slide fastener, drag hook, and described drag hook is connected with rotation axis.
3. low-voltage circuit breaker according to claim 1 and 2, it is characterized in that: described device for under-voltage releasing equipment, described shunt release, described overcurrent release are connected with armature respectively, and the armature of the armature of described device for under-voltage releasing equipment, described shunt release is connected with spring.
4. low-voltage circuit breaker according to claim 1 and 2, is characterized in that: described shunt release is connected with described contact C by switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310593334.XA CN103617930A (en) | 2013-11-23 | 2013-11-23 | Low voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310593334.XA CN103617930A (en) | 2013-11-23 | 2013-11-23 | Low voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103617930A true CN103617930A (en) | 2014-03-05 |
Family
ID=50168633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310593334.XA Withdrawn CN103617930A (en) | 2013-11-23 | 2013-11-23 | Low voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103617930A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112629A (en) * | 2014-06-30 | 2014-10-22 | 国家电网公司 | Device for preventing reverse charging of secondary side of voltage transformer |
| CN104217904A (en) * | 2014-09-26 | 2014-12-17 | 成都锐奕信息技术有限公司 | System capable of guaranteeing working stability of large-scale computers |
| CN104269328A (en) * | 2014-09-26 | 2015-01-07 | 成都锐奕信息技术有限公司 | Control structure capable of reducing operating impact force |
| CN104299857A (en) * | 2014-09-26 | 2015-01-21 | 成都锐奕信息技术有限公司 | Low-voltage circuit breaking structure based on power supply of large computer |
| CN104616937A (en) * | 2015-01-15 | 2015-05-13 | 中山大学 | Arc extinction protection device for photovoltaic combiner box |
| CN105514931A (en) * | 2016-01-29 | 2016-04-20 | 宇龙计算机通信科技(深圳)有限公司 | Power-off device and electronic device |
| CN107919245A (en) * | 2017-11-15 | 2018-04-17 | 佛山杰致信息科技有限公司 | A kind of breaker of electric power safety protection |
| CN108169526A (en) * | 2018-02-05 | 2018-06-15 | 国网江苏省电力有限公司苏州供电分公司 | With the intelligent electric meter for being spaced apart moving control function |
| CN108597967A (en) * | 2018-01-17 | 2018-09-28 | 安徽中骄智能科技有限公司 | A kind of thermal tripping broken circuit protecting equipment pushing away formula based on sheet metal |
| CN111508793A (en) * | 2020-04-21 | 2020-08-07 | 国网安徽省电力有限公司铜陵市义安区供电公司 | Overload protection device of low-voltage distribution line distribution transformer |
| CN112185778A (en) * | 2020-10-28 | 2021-01-05 | 国网甘肃省电力公司兰州供电公司 | Automatic reclosing device of air circuit breaker with self-healing function |
| CN114006436A (en) * | 2021-11-04 | 2022-02-01 | 傲普(上海)新能源有限公司 | Battery module undervoltage overvoltage overcurrent relay integrated protection circuit |
-
2013
- 2013-11-23 CN CN201310593334.XA patent/CN103617930A/en not_active Withdrawn
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104112629A (en) * | 2014-06-30 | 2014-10-22 | 国家电网公司 | Device for preventing reverse charging of secondary side of voltage transformer |
| CN104217904A (en) * | 2014-09-26 | 2014-12-17 | 成都锐奕信息技术有限公司 | System capable of guaranteeing working stability of large-scale computers |
| CN104269328A (en) * | 2014-09-26 | 2015-01-07 | 成都锐奕信息技术有限公司 | Control structure capable of reducing operating impact force |
| CN104299857A (en) * | 2014-09-26 | 2015-01-21 | 成都锐奕信息技术有限公司 | Low-voltage circuit breaking structure based on power supply of large computer |
| CN104616937A (en) * | 2015-01-15 | 2015-05-13 | 中山大学 | Arc extinction protection device for photovoltaic combiner box |
| CN104616937B (en) * | 2015-01-15 | 2017-01-25 | 中山大学 | Arc extinction protection device for photovoltaic combiner box |
| CN105514931A (en) * | 2016-01-29 | 2016-04-20 | 宇龙计算机通信科技(深圳)有限公司 | Power-off device and electronic device |
| CN107919245A (en) * | 2017-11-15 | 2018-04-17 | 佛山杰致信息科技有限公司 | A kind of breaker of electric power safety protection |
| CN108597967B (en) * | 2018-01-17 | 2019-09-13 | 安徽中骄智能科技有限公司 | A kind of thermal tripping broken circuit protecting equipment pushing away formula based on sheet metal |
| CN108597967A (en) * | 2018-01-17 | 2018-09-28 | 安徽中骄智能科技有限公司 | A kind of thermal tripping broken circuit protecting equipment pushing away formula based on sheet metal |
| CN108169526A (en) * | 2018-02-05 | 2018-06-15 | 国网江苏省电力有限公司苏州供电分公司 | With the intelligent electric meter for being spaced apart moving control function |
| CN111508793A (en) * | 2020-04-21 | 2020-08-07 | 国网安徽省电力有限公司铜陵市义安区供电公司 | Overload protection device of low-voltage distribution line distribution transformer |
| CN111508793B (en) * | 2020-04-21 | 2021-04-30 | 国网安徽省电力有限公司铜陵市义安区供电公司 | Overload protection device of low-voltage distribution line distribution transformer |
| CN112185778A (en) * | 2020-10-28 | 2021-01-05 | 国网甘肃省电力公司兰州供电公司 | Automatic reclosing device of air circuit breaker with self-healing function |
| CN114006436A (en) * | 2021-11-04 | 2022-02-01 | 傲普(上海)新能源有限公司 | Battery module undervoltage overvoltage overcurrent relay integrated protection circuit |
| CN114006436B (en) * | 2021-11-04 | 2023-09-15 | 傲普(上海)新能源有限公司 | Integrated protection circuit of undervoltage, overvoltage and overcurrent relay of battery module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140305 |