CN205488000U - Low -voltage circuit breaker - Google Patents
Low -voltage circuit breaker Download PDFInfo
- Publication number
- CN205488000U CN205488000U CN201620128467.9U CN201620128467U CN205488000U CN 205488000 U CN205488000 U CN 205488000U CN 201620128467 U CN201620128467 U CN 201620128467U CN 205488000 U CN205488000 U CN 205488000U
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- China
- Prior art keywords
- contact
- lever
- armature
- locking key
- voltage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010438 heat treatment Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 230000003245 working effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a low -voltage circuit breaker, including concatenating the main stationary contact in three -phase circuit respectively, still include operating handle, operating handle is connected with the operating axis, the operating axis is connected with and has contact with, it is connected with the locking key to have contact with the cooperation, the locking key is connected with locking key reset spring, be equipped with in the locking key with the initiative contact that main stationary contact corresponds, the sub -unit connection that has contact with has downwardly extending's lever, the below of lever is equipped with to correspond to push up to be leaned on thermal overload release, electromagnetism release and the under voltage release of lever, the institute under voltage release's armature is connected with armature reset spring. The utility model relates to an it is rational in infrastructure, can realize overload, short circuit and undervoltage protection, can effectively guarantee the working property, job stabilization is reliable, protects personal property safety.
Description
Technical field
This utility model relates to a kind of power equipment, particularly relates to a kind of low-voltage circuit breaker.
Background technology
Low-voltage circuit breaker, once claims automatically switch, be one be possible not only to connect and disjunction normal duty electric current and
Overload electric current, can also connect and the device for switching of disjunction short circuit current.Low-voltage circuit breaker removes in circuit
Rise outside control action, also there is certain protection electric equipment function, such as overload, short circuit, under-voltage protection
Deng.But there is job insecurity, service behaviour imperfection, use in low-voltage circuit breaker of the prior art
The shortcomings such as this height.
Utility model content
It is rational in infrastructure that technical problem to be solved in the utility model is to provide a kind of design, it is possible to realized
Load, short circuit and under-voltage protection, it is possible to effectively guarantee service behaviour, stable and reliable in work, protection person property
The low-voltage circuit breaker of safety.
For solving above-mentioned technical problem, the technical solution of the utility model is: low-voltage circuit breaker, including respectively
The main stationary contact being serially connected in three-phase circuit, also includes operating handle, and described operation handle connects operation axle,
Described operation axle connects to be had and has contact with, described in have contact with and be connected with locking key, described locking key connects has locking key to reset
Spring, described locking key is provided with the active contact corresponding with described main stationary contact, described in the bottom had contact with connect
The lever downwardly extended, the lower section of described lever is had to be provided with correspondence and lean the thermal trip of described lever；Also wrap
Including magnetictrip, the armature of described magnetictrip is positioned at the lower section correspondence of described lever and leans described thick stick
Bar, described thermal trip and magnetictrip be serially connected in a phase of three-phase circuit, three-phase circuit the most biphase
Middle connection has under-voltage release, the armature of described under-voltage release to be positioned at the correspondence top, lower section of described lever
By described lever, the armature of described under-voltage release connects armature back-moving spring.
As preferred technique scheme, described thermal trip includes being serially connected in a phase of three-phase circuit
Heating wire, described heating wire is arranged over being positioned at the lower section correspondence of described lever and leans the bimetallic of described lever
Sheet.
As the improvement to technique scheme, the following side of described lever be provided with respectively with described electromagnetic trip
The stop leg that the armature of device, the armature of described under-voltage release contact.
As the further improvement to technique scheme, also including arc-control device, described arc-control device uses
Grid arc extinguishing, described arc-control device includes arc-extinguish chamber, scribbles insulating barrier inside described arc-extinguish chamber.
As the further improvement to technique scheme, described main stationary contact and the number of described active contact
It is right that amount is respectively three.
As improving the most further technique scheme, the armature of described magnetictrip, described owe
The coil being provided with copper cash spiral surrounding it is wound around on the armature of voltage trip device.
Owing to have employed technique scheme, low-voltage circuit breaker, including the master being serially connected in respectively in three-phase circuit
Stationary contact, also includes operating handle, and described operation handle connects operation axle, and described operation axle connects to be taken
Hook, described in have contact with and be connected with locking key, described locking key connects locking key back-moving spring, and described locking key sets
Have the active contact corresponding with described main stationary contact, described in the bottom had contact with connect and have the lever downwardly extended,
The lower section of described lever is provided with correspondence and leans the thermal trip of described lever；Also include magnetictrip, described
The armature of magnetictrip is positioned at the lower section correspondence of described lever and leans described lever, described thermal trip and electricity
Magnetic release is serially connected in a phase of three-phase circuit, and the another biphase middle connection of three-phase circuit has under-voltage to thread off
Device, the armature of described under-voltage release is positioned at the lower section correspondence of described lever and leans described lever, described deficient
The armature of voltage trip device connects armature back-moving spring.Described thermal trip serves the work of overload protection
With, described magnetictrip is used as short circuit instantaneous protection, and described under-voltage release plays under-voltage protection, energy
The electric current that enough disjunctions are bigger, when circuit breaks down, it is possible to automatic shutdown circuit, with common fuse phase
Ratio, after failture evacuation, it is only necessary to the not replacing parts that again close a floodgate just can reclose circuit.This practicality
New design is rational in infrastructure, it is possible to realize overload, short circuit and under-voltage protection, it is possible to effectively guarantee service behaviour,
Stable and reliable in work, protect personal safety as well as the property safety.
Accompanying drawing explanation
The following drawings is only intended in schematically illustrating this utility model and explaining, does not limit this practicality new
The scope of type.Wherein:
Fig. 1 is the structural representation of this utility model embodiment.
In figure: the main stationary contact of 1-；2-operates axle；3-has contact with；4-locking key；5-locking key back-moving spring；6-master
Movable contact；7-lever；8-magnetictrip；9-under-voltage release；10-armature back-moving spring；11-electricity
Heated filament；12-bimetal leaf；13-stops leg.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is expanded on further.In the following detailed description,
Only by the way of explanation, describe some one exemplary embodiment of the present utility model.Undoubtedly, this area
Those of ordinary skill will be consequently realised that, in the case of without departing from spirit and scope of the present utility model, can
By with various different in the way of described embodiment is modified.Therefore, accompanying drawing and being described in substantially
It is illustrative rather than for limiting scope of the claims.
As it is shown in figure 1, low-voltage circuit breaker, including the main stationary contact 1 being serially connected in respectively in three-phase circuit, also
Including operation handle (not shown), described operation handle connects operation axle 2, described operation axle 2
Connect and have and has contact with 3, described in have contact with 3 and be connected with locking key 4, described locking key 4 connects locking key reset bullet
Spring 5, described locking key 4 is provided with the active contact 6 corresponding with described main stationary contact 1, described in have contact with 3
Bottom connects has the lever 7 downwardly extended, the lower section of described lever 7 to be provided with correspondence and lean described lever 7
Thermal trip；Also include that magnetictrip 8, the armature of described magnetictrip 8 are positioned at described lever 7
Lower section correspondence leans described lever 7, described thermal trip and magnetictrip 8 and is serially connected in the one of three-phase circuit
Xiang Zhong, the another biphase middle connection of three-phase circuit has under-voltage release 9, the rank of described under-voltage release 9
Ferrum is positioned at the lower section correspondence of described lever 7 and leans described lever 7, and the armature of described under-voltage release 9 is even
It is connected to armature back-moving spring 10.
The specific works principle of the present embodiment is: during normal operation of circuit breaker, and described main stationary contact 1 is series at
In three-phase circuit, close described operation handle, and external force makes described locking key 4 overcome described locking key back-moving spring 5
Pulling force, drive described active contact 6 to close with described main stationary contact 1, and had contact with 3 clasped institute by described
State locking key 4, make chopper maintain closing position.When circuit overload, overcurrent flows through described heat and takes off
Button device makes it lean described lever 7 lower end, described lever 7 promote described in have contact with 3 and separate with described locking key 4,
Described locking key 4 is under the effect of described locking key back-moving spring 5, and drives described active contact 6 and described master
Stationary contact 1 separating brake, thus cut off circuit.When circuit is short-circuited fault, described magnetictrip 8 produces
Raw enough electromagnetic forces are by armature adhesive, and the armature of described magnetictrip 8 leans described lever 7 lower end,
Described lever 7 has contact with 3 and separates with described locking key 4 described in promoting, and described locking key 4 is at described locking key reset bullet
Under the effect of spring 5, and drive described active contact 6 and described main stationary contact 1 separating brake, thus cut off circuit.
When Line under-voltage, the armature movement of described under-voltage release 9 leans described lever 7 lower end, described thick stick
Bar 7 has contact with 3 and separates with described locking key 4 described in promoting, and described locking key 4 is at described locking key back-moving spring 5
Under effect, and drive described active contact 6 and described main stationary contact 1 separating brake, thus cut off circuit.
Described thermal trip serves the effect of overload protection, and described magnetictrip 8 is used as short-circuit instantaneous guarantor
Protecting, described under-voltage release 9 plays under-voltage protection, it is possible to the electric current that disjunction is bigger, when event occurs in circuit
During barrier, it is possible to automatic shutdown circuit, compared with common fuse, after failture evacuation, it is only necessary to again close a floodgate
Do not change parts and just can reclose circuit.The present embodiment design is rational in infrastructure, it is possible to realization overload,
Short circuit and under-voltage protection, it is possible to effectively guarantee service behaviour, stable and reliable in work, protect personal safety as well as the property safety.
Described thermal trip includes the heating wire 11 being serially connected in a phase of three-phase circuit, described heating wire 11
The lower section correspondence being arranged over being positioned at described lever 7 leans the bimetal leaf 12 of described lever 7.When circuit mistake
During load, overcurrent flows through described heating wire 11, so that described bimetal leaf 12 is heated and is bent upwards top
By described lever 7 lower end, described lever 7 promote described in have contact with 3 and separate with described locking key 4, described locking key
4 under the effect of described locking key back-moving spring 5, and drives described active contact 6 and described main stationary contact 1
Separating brake, thus cut off circuit.
The following side of described lever 7 is provided with and takes off with the armature of described magnetictrip 8, described under-voltage respectively
The stop leg 13 of the armature contact of button device 9, said structure is conducive to the layout of structure devices.
Also including arc-control device (not shown), described arc-control device uses grid arc extinguishing, described arc extinguishing
Device includes arc-extinguish chamber, scribbles insulating barrier inside described arc-extinguish chamber, said structure is the most perfect workability
Can, applicable home circuit checks the situation of increase.
It is three right that the quantity of described main stationary contact 1 and described active contact 6 is respectively, and said structure is the completeest
It is apt to service behaviour.
The armature of described magnetictrip 8, described under-voltage release 9 armature on be wound around be provided with copper cash spiral shell
The coil of rotation cincture, said structure ensure that service behaviour.
Of the present utility model ultimate principle, principal character and of the present utility model excellent have more than been shown and described
Point.Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-mentioned reality
Execute and principle of the present utility model is simply described, without departing from this utility model spirit described in example and description
On the premise of scope, this utility model also has various changes and modifications, and these changes and improvements both fall within
In the range of claimed this utility model.This utility model claims scope by appending claims
And equivalent defines.
Claims (6)
1. low-voltage circuit breaker, including the main stationary contact being serially connected in respectively in three-phase circuit, also includes operating handle,
Described operation handle connects operation axle, it is characterised in that: described operation axle connects to be had and has contact with, described in have contact with
Being connected with locking key, it is quiet with described master that described locking key connection has locking key back-moving spring, described locking key to be provided with
The active contact that contact is corresponding, described in the bottom had contact with connect and have the lever downwardly extended, under described lever
Side is provided with correspondence and leans the thermal trip of described lever；Also include magnetictrip, described magnetictrip
Armature is positioned at the lower section correspondence of described lever and leans described lever, described thermal trip and magnetictrip concatenation
In a phase of three-phase circuit, the another biphase middle connection of three-phase circuit has under-voltage release, described under-voltage
The armature of electrical apparatus release is positioned at the lower section correspondence of described lever and leans described lever, the rank of described under-voltage release
Ferrum connects armature back-moving spring.
2. low-voltage circuit breaker as claimed in claim 1, it is characterised in that: described thermal trip includes concatenation
Heating wire in a phase of three-phase circuit, the lower section that described heating wire is arranged over being positioned at described lever is corresponding
Lean the bimetal leaf of described lever.
3. low-voltage circuit breaker as claimed in claim 1, it is characterised in that: the following side of described lever is provided with
The stop leg that armature with the armature of described magnetictrip, described under-voltage release contacts respectively.
4. low-voltage circuit breaker as claimed in claim 1, it is characterised in that: also include arc-control device, described
Arc-control device uses grid arc extinguishing, and described arc-control device includes arc-extinguish chamber, scribbles insulation inside described arc-extinguish chamber
Layer.
5. low-voltage circuit breaker as claimed in claim 1, it is characterised in that: described main stationary contact and described master
It is right that the quantity of movable contact is respectively three.
6. the low-voltage circuit breaker as described in claim 1 to 5 any claim, it is characterised in that: described
The armature of magnetictrip, described under-voltage release armature on be wound around be provided with copper cash spiral surrounding
Coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128467.9U CN205488000U (en) | 2016-02-19 | 2016-02-19 | Low -voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620128467.9U CN205488000U (en) | 2016-02-19 | 2016-02-19 | Low -voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205488000U true CN205488000U (en) | 2016-08-17 |
Family
ID=56678485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620128467.9U Expired - Fee Related CN205488000U (en) | 2016-02-19 | 2016-02-19 | Low -voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205488000U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108305820A (en) * | 2018-02-23 | 2018-07-20 | 南京飞腾电子科技有限公司 | A kind of breaker |
| CN108648953A (en) * | 2018-05-21 | 2018-10-12 | 苏州天鸿电子有限公司 | A kind of dropout type arc extinguishing breaker |
| CN111157679A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Hydrogen pipeline detection system |
| CN111584314A (en) * | 2020-05-12 | 2020-08-25 | 湖州南浔上福线缆有限公司 | Drop-out power protection device based on thermal bimetallic strip principle |
| CN113937735A (en) * | 2021-10-26 | 2022-01-14 | 傲普(上海)新能源有限公司 | Pre-charging, over-voltage and over-current protection circuit and method for battery module |
| 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 |
-
2016
- 2016-02-19 CN CN201620128467.9U patent/CN205488000U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108305820A (en) * | 2018-02-23 | 2018-07-20 | 南京飞腾电子科技有限公司 | A kind of breaker |
| CN108648953A (en) * | 2018-05-21 | 2018-10-12 | 苏州天鸿电子有限公司 | A kind of dropout type arc extinguishing breaker |
| CN111157679A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Hydrogen pipeline detection system |
| CN111584314A (en) * | 2020-05-12 | 2020-08-25 | 湖州南浔上福线缆有限公司 | Drop-out power protection device based on thermal bimetallic strip principle |
| CN113937735A (en) * | 2021-10-26 | 2022-01-14 | 傲普(上海)新能源有限公司 | Pre-charging, over-voltage and over-current protection circuit and method for battery module |
| 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 |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170219 |