CN205122517U - Low -voltage circuit breaker - Google Patents
Low -voltage circuit breaker Download PDFInfo
- Publication number
- CN205122517U CN205122517U CN201520835876.8U CN201520835876U CN205122517U CN 205122517 U CN205122517 U CN 205122517U CN 201520835876 U CN201520835876 U CN 201520835876U CN 205122517 U CN205122517 U CN 205122517U
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- contact
- armature
- lever
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- voltage
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Abstract
The utility model discloses a low -voltage circuit breaker, including the hasp, have contact with, the axle and the lever, hasp one side is provided with the spring, the hasp with have contact with the card and hold and be connected, it is provided with the axle to have contact with one side, the axle with have contact with articulated, the lever is established and is being had contact with the below, the lever with have contact with fixed connection, be provided with the contact on the hasp, the contact is equipped with more than one, the contact below is connected with the electromagnetism release, be provided with armature no. 1 on the electromagnetism release, armature no. 1 and lever swing joint, the lever below is provided with resistance wire and bimetallic strip, contact one side is connected with the no -voltage release, be provided with armature no. 2 and spring no. 2 on the no -voltage release, this low -voltage circuit breaker simple structure, simple to operate has under -voltage protection effect and short -circuit protection's function.
Description
Technical field
The utility model relates to a kind of transmission facility technical field, particularly relates to a kind of low-voltage circuit breaker.
Background technology
Low-voltage circuit breaker (once claiming automatic switch) is that one not only can be connected and disjunction normal duty electric current and overload electric current, the device for switching with disjunction short circuit current can also be connected, low-voltage circuit breaker is in circuit except playing control action, also there is certain defencive function, as overload, short circuit, under-voltage and earth leakage protective etc., the mode classification of low-voltage circuit breaker is a lot, divide by use classes, there are selection type (protective device Parameter adjustable) and non-selection type (protective device parameter is non-adjustable), divide by arc-extinguishing medium, there are air type and vacuum type (domestic mostly at present be air type), low-voltage circuit breaker range of capacity is very large, minimum is 4A, and the maximum 5000A that reaches, low-voltage circuit breaker is widely used in low-voltage distribution system outgoing at different levels, the Energy control of various plant equipment and the control and protection of electric terminal.
Low-voltage circuit breaker: low-voltage circuit breaker is also known as automatic air-break switch or automatic air circuit breaker; be called for short circuit breaker; it is a kind of existing hand switch effect; automatically decompression, under-voltage, overload and the electrical equipment of short-circuit protection can be carried out again; it can be used to distribute electric energy; infrequently start asynchronous motor; protection is carried out to power circuit and motor etc.; can automatic shutdown circuit when serious overload or short circuit and the fault such as under-voltage occur for they, its function is equivalent to Fuse switch and crosses the combinations such as underheat relay.And generally do not need to change parts after disjunction fault current, obtain a wide range of applications, low-voltage electrical apparatus is widely used in the industry-by-industry of national economy, with whole society's fixed investment situation close relation, the fast-developing phase of 21 actual Chu Shi China low voltage electrical apparatus industries, China's low voltage electrical apparatus industry growth rate remains on 10%-15%, the market capacity of low voltage electrical apparatus industry and electric power, industry, real estate, the development of telecommunications industry is closely connected, add the demand structure adjustment of low-voltage electrical apparatus and the potential demand of international market, for the future development of low voltage electrical apparatus industry provides broad space, current existing low-voltage circuit breaker complex structure, install inconvenient, function singleness, stability is lower.
Utility model content
It is simple that the technical problems to be solved in the utility model is to provide a kind of structure, easy for installation, has the low-voltage circuit breaker of the function of o-volt protection effect and short-circuit protection.
For solving the problem, the utility model adopts following technical scheme: a kind of low-voltage circuit breaker, comprise snap close, have contact with, axle and lever, described snap close side is provided with spring, described snap close is connected with having contact with to hold, have contact with and hold connection with snap close, the convenient opening and closing controlling contact, structure is simple, convenient installation, axle keeps having contact with rotation conveniently, described side of having contact with is provided with axle, described axle with have contact with hinged, described lever is located at and has contact with below, described lever is fixedly connected with having contact with, described snap close is provided with contact, described contact is provided with more than one, magnetictrip is connected with below described contact, described magnetictrip is provided with armature one, lever can drive and have contact with rotation, magnetictrip produces enough electromagnetic forces by armature one adhesive when short circuit, protective circuit safety, no-voltage release at supply voltage too low or have a power failure time, described armature one is flexibly connected with lever, resistance wire and bimetal leaf is provided with below described lever, side, described contact is connected with no-voltage release, the electromagnetic force that electromagnet produces is not enough to the pulling force overcoming reaction force spring two, armature two discharges, protective circuit, described no-voltage release is provided with armature two and spring two.
As preferably, described armature two is connected with spring two, and spring two can produce pulling force to armature two.
As preferably, described armature two is flexibly connected with lever, can control lever and move.
As preferably, described resistance wire and magnetictrip are electrically connected, and keep easy for installation.
As preferably, described armature one and armature two are silicon steel armature, long service life.
It is simple that this technical scheme has structure, easy for installation, has the feature of the function of o-volt protection effect and short-circuit protection.
The beneficial effects of the utility model are: arrange and have contact with and hold connection with snap close; the convenient opening and closing controlling contact, structure is simple, convenient installation; axle keeps having contact with rotation conveniently; lever can drive and have contact with rotation, and magnetictrip produces enough electromagnetic forces by armature one adhesive when short circuit, protective circuit safety; no-voltage release at supply voltage too low or have a power failure time; the electromagnetic force that no-voltage release produces is not enough to the pulling force overcoming reaction force spring two, and armature two discharges, protective circuit.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of a kind of low-voltage circuit breaker of the present utility model.
Embodiment
Consult shown in Fig. 1, a kind of low-voltage circuit breaker, comprise snap close 1, have contact with 2, axle 3 and lever 4, described snap close 1 side is provided with spring 5, described snap close 1 with have contact with 2 and hold and be connected, described 2 sides of having contact with are provided with axle 3, described axle 3 is with to have contact with 2 hinged, described lever 4 is located at and has contact with below 2, described lever 4 with have contact with 2 and be fixedly connected with, described snap close 1 is provided with contact 6, described contact 6 is provided with more than one, magnetictrip 7 is connected with below described contact 6, described magnetictrip 7 is provided with armature 1, described armature 1 is flexibly connected with lever 4, resistance wire 9 and bimetal leaf 10 is provided with below described lever 4, side, described contact 6 is connected with no-voltage release 11, described no-voltage release 11 is provided with armature 2 12 and spring 2 13.
Described armature 2 12 is connected with spring 2 13, and in use, spring 2 13 can produce pulling force to armature 2 12.
Described armature 2 12 is flexibly connected with lever 4, in use, can control lever 4 and move.
Described resistance wire 9 is electrically connected with magnetictrip 7, in use, keeps easy for installation.
Described armature 1 and armature 2 12 are silicon steel armature, in use, and long service life.
In use, when supply voltage is too low or have a power failure, the electromagnetic force that no-voltage release 11 produces is not enough to the pulling force overcoming reaction force spring 2 13, armature 2 12 discharges, by lever 4 promote to have contact with 2 and snap close 1 separately, play under-voltage or o-volt protection effect, when circuit is short-circuited fault, magnetictrip 7 produces enough electromagnetic forces by armature 1 adhesive, promote to have contact with 2 by lever 4 to separate with snap close 1, snap close 1, under the effect of reaction force spring 1, is with moving contact 6 separating brake, thus cuts off circuit; When circuit overload, overload current resistance wire 9 makes bimetal leaf 10 be heated to be bent upwards, and promotes to have contact with 2 separate with snap close 1 by lever 4, and snap close 1, under the effect of reaction force spring 1, is with moving contact 6 separating brake, thus cut-out circuit.
The beneficial effects of the utility model are: arrange and have contact with and hold connection with snap close; the convenient opening and closing controlling contact, structure is simple, convenient installation; axle keeps having contact with rotation conveniently; lever can drive and have contact with rotation, and magnetictrip produces enough electromagnetic forces by armature one adhesive when short circuit, protective circuit safety; no-voltage release at supply voltage too low or have a power failure time; the electromagnetic force that no-voltage release produces is not enough to the pulling force overcoming reaction force spring two, and armature two discharges, protective circuit.
The above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection range of the present utility model; therefore, the protection range that protection range of the present utility model should limit with claims is as the criterion.
Claims (5)
1. a low-voltage circuit breaker, it is characterized in that: comprise snap close, have contact with, axle and lever, described snap close side is provided with spring, described snap close is connected with having contact with to hold, described side of having contact with is provided with axle, described axle with have contact with hinged, described lever is located at and has contact with below, described lever is fixedly connected with having contact with, described snap close is provided with contact, described contact is provided with more than one, magnetictrip is connected with below described contact, described magnetictrip is provided with armature one, described armature one is flexibly connected with lever, resistance wire and bimetal leaf is provided with below described lever, side, described contact is connected with no-voltage release, described no-voltage release is provided with armature two and spring two.
2. low-voltage circuit breaker according to claim 1, is characterized in that: described armature two is connected with spring two.
3. low-voltage circuit breaker according to claim 1, is characterized in that: described armature two is flexibly connected with lever.
4. low-voltage circuit breaker according to claim 1, is characterized in that: described resistance wire and magnetictrip are electrically connected.
5. low-voltage circuit breaker according to claim 1, is characterized in that: described armature one and armature two are silicon steel armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835876.8U CN205122517U (en) | 2015-10-27 | 2015-10-27 | Low -voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835876.8U CN205122517U (en) | 2015-10-27 | 2015-10-27 | Low -voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122517U true CN205122517U (en) | 2016-03-30 |
Family
ID=55578101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520835876.8U Expired - Fee Related CN205122517U (en) | 2015-10-27 | 2015-10-27 | Low -voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205122517U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571617A (en) * | 2016-10-14 | 2017-04-19 | 无锡市海升电子科技有限公司 | Leakage protector capable of carrying out leakage detection automatically |
| 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 |
| CN108335953A (en) * | 2018-03-31 | 2018-07-27 | 浙江奥德克电气科技有限公司 | Breaker |
| CN111157679A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Hydrogen pipeline detection system |
| CN111863555A (en) * | 2020-07-15 | 2020-10-30 | 陈垠杰 | Adjustable tripping structure of air switch |
-
2015
- 2015-10-27 CN CN201520835876.8U patent/CN205122517U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571617A (en) * | 2016-10-14 | 2017-04-19 | 无锡市海升电子科技有限公司 | Leakage protector capable of carrying out leakage detection automatically |
| CN106571617B (en) * | 2016-10-14 | 2019-02-05 | 安徽伊法拉电力科技有限公司 | A kind of earth leakage protective device that can carry out detection of electrical leakage automatically |
| 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 |
| CN108335953A (en) * | 2018-03-31 | 2018-07-27 | 浙江奥德克电气科技有限公司 | Breaker |
| CN108335953B (en) * | 2018-03-31 | 2024-01-02 | 浙江天为电气科技有限公司 | Circuit breaker |
| CN111157679A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Hydrogen pipeline detection system |
| CN111863555A (en) * | 2020-07-15 | 2020-10-30 | 陈垠杰 | Adjustable tripping structure of air switch |
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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: 20160330 Termination date: 20161027 |