CN202772081U - Thermal electromagnetic system of miniature circuit breaker - Google Patents
Thermal electromagnetic system of miniature circuit breaker Download PDFInfo
- Publication number
- CN202772081U CN202772081U CN 201220364060 CN201220364060U CN202772081U CN 202772081 U CN202772081 U CN 202772081U CN 201220364060 CN201220364060 CN 201220364060 CN 201220364060 U CN201220364060 U CN 201220364060U CN 202772081 U CN202772081 U CN 202772081U
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- iron core
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- coil
- circuit breaker
- type yoke
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Abstract
A thermal electromagnetic system of a miniature circuit breaker comprises an arc striking angle (1), a silver contact (2), a one-piece magnet yoke (3), a coil (4), a flexible connecter (5), a double-metal thermal element (6), a wiring board (7), a plastic sleeve (8), a static iron core (9), a moving iron core (10), an iron core spring (11) and a top rod (12). According to the utility model, the double-metal thermal element and the coil are connected by a soft wire, series connection of systems is realized, with the connection mode, not only is positioning reliability guaranteed, but also the technology is simpler, positioning is more accurate, the structure is simplified, cost is saved, the product debugging qualified rate is increased, and the repair rate is reduced.
Description
Technical field
The utility model belongs to the miniature circuit breaker technical field, specifically just relates to the thermoelectric magnetic system of double breaking points miniature circuit breaker.
Background technology
Circuit breaker is divided into primary cut-out and low-voltage circuit breaker by its scope of application.Low-voltage circuit breaker claims again automatic switch, is commonly called as " air switch " and also refers to low-voltage circuit breaker, and it is a kind of existing hand switch effect, can automatically carry out again decompression, under-voltage, overload and the electrical equipment of short-circuit protection.It can be used to distribute electric energy; do not start continually asynchronous motor; power circuit and motor etc. are carried out protection; can automatic shutdown circuit when serious overload or short circuit and the fault such as under-voltage occur for their; its function is equivalent to the combination of Fuse switch and mistake underheat relay etc.; and behind the disjunction fault current, generally do not need to change parts, obtain a wide range of applications.
Miniature circuit breaker has overload and short-circuit protection function usually; wherein overload protection function is sensed the crooked breaker mechanism turn-off current loop that promotes of heat generation by thermal element and is realized, thus the magnetictrip induction that short-circuit protection function is formed by elements such as comprising coil, armature, magnetic core, yoke and set up magnetic field and make armature motion and pushing mechanism disconnect the realization that refluxes.
A kind of double breaking points miniature circuit breaker is arranged in the circuit breaker, between the thermoelectric magnetic system of traditional double breaking points miniature circuit breaker and the two Jin Re system for being connected in parallel, the mechanism element kind that some circuit breaker takes the mode that is connected in parallel to need is many, need multiple welding to cause management inconvenient, the existence of a plurality of solder joints causes processing cost high, because the unsteadiness of welding, cause being difficult to guarantee integrally-built consistency, when short circuit current passes through, lead up to two Jin Re systems, lead up to electromagnetic system, when the branch current of electromagnetic system coil of flowing through surpasses the critical value that magnetic threads off, electromagnetic force drives the movement of moving iron core, and then the drive push rod moves, the balanced lever that is assemblied on the push rod is stirred snap close, so that operating mechanism is in unstability, increased the insecurity of circuit breaker work, simultaneously in the whole mechanism action process, the current component of electromagnetic system and hot system can be because of the different generation differences of resistance value allocation proportion, the defective of welding procedure often again so that the dropout critical value is difficult to unification in all products, increases the difficulty that detects.
The utility model content
Thermoelectric magnetic system for existing miniature circuit breaker adopts parallel way, it is interval unstable to cause short circuit to be threaded off, the inconsistent technological deficiency of properties of product, the utility model provides a kind of thermoelectric magnetic system of miniature circuit breaker, employing is flexible coupling coil and two golden thermal element is connected in series mode, be connected in the diverse location of bimetal leaf according to being flexible coupling, to be flexible coupling and change into different length, and then the caloric value of the two golden thermal elements of control, the product structure of applicable different current specification, simplify product structure, saved the spot welding cost, improved the stability of product.
Technical scheme
In order to realize above-mentioned technical purpose, the utility model designs a kind of thermoelectric magnetic system of miniature circuit breaker, comprise arc leading angle, silver contact, the integral type yoke, coil, soft connection, two golden thermal elements, terminal block, plastic sleeve, static iron core, moving iron core, iron core spring and push rod, it is characterized in that: described integral type yoke is fixedly connected with arc leading angle, silver contact is fixed on the static contact panel of integral type yoke, static iron core is contained in the flanging bore of integral type yoke, one end of coil is connected with terminal block, two golden thermal elements are connected with coil by soft connection, two golden thermal elements are fixed on the boss place of integral type yoke, push rod passes the static iron core lumen orifice, moving iron core is contained on the push rod and is positioned at coil near the static iron core place, the iron core spring housing is contained in and is positioned at moving iron core and static iron core inner chamber on the push rod, and plastic sleeve is contained on moving iron core and the static iron core periphery and is arranged in the coil inner chamber.
Further, described silver contact is welded on the static contact panel of integral type yoke.
Further, described integral type yoke is connected with arc leading angle spot welding.
Further, described static iron core riveted is in the flanging bore of integral type yoke.
Beneficial effect
The utility model has been realized connecting between the system by the form of the two golden thermal elements of flexible conductor connection and coil, and such connecting mode guarantees that namely the location is reliable, make again technique simpler, locate more accurate, simplified structure, save cost, the production debugging qualification rate is increased, repair rate reduces.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 be in the accompanying drawing 1 A to perspective view
Accompanying drawing 3 is that the utility model is overlooked direction structure.
Accompanying drawing 4 be among Fig. 3 B to cutaway view.
Accompanying drawing 5 is the utility model working state structure schematic diagrames.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Such as accompanying drawing 1,2, the thermoelectric magnetic system of a kind of miniature circuit breaker shown in 3 and 5, comprise arc leading angle 1, silver contact 2, integral type yoke 3, coil 4, soft connection 5, two golden thermal elements 6, terminal block 7, plastic sleeve 8, static iron core 9, moving iron core 10, iron core spring 11 and push rod 12, wherein, described integral type yoke 3 is connected with arc leading angle 1 spot welding, silver contact 2 is welded on the static contact panel of integral type yoke 3, static iron core 9 riveteds are in the flanging bore of integral type yoke 3, one end of coil 4 is connected with terminal block 7, two golden thermal elements 65 are connected with coil 4 by being flexible coupling, two golden thermal elements 6 are fixed on the boss place of integral type yoke 3, push rod 12 passes static iron core 9 lumen orifice, moving iron core 10 is contained on the push rod 12 and is positioned at coil 4 near static iron core 9 places, iron core spring 11 is sleeved on and is positioned at moving iron core 10 and static iron core 9 inner chambers on the push rod 12, and plastic sleeve 8 is contained on moving iron core 10 and static iron core 9 peripheries and is arranged in coil 4 inner chambers.
As shown in Figure 4, the course of work of the present utility model is that the utility model is when being applied in the circuit, electric current is successively by two golden keeper, the static contact panel on the integral type yoke 3, silver contact 2, movable contact plate 13, lower floor's static contact panel 14 on terminal block 7 one ends, coil 4, soft connection 5, two golden thermal element 6, the integral type yoke 3, when overload occurs, two golden thermal element 6 heated bendings promote snap close 15 and realize tripping function; When being short-circuited, the electric current of the solenoid 4 of flowing through surpasses critical value, and electromagnetism force pushing mandril 12, push rod 12 drive balanced lever 16 and stir snap close 15 realization dropouts, product separating brake.
The utility model is connected in the diverse location of bimetal leaf by the form of the two golden thermal elements of flexible conductor connection and coil according to being flexible coupling, will be flexible coupling and change into different length, and then the caloric value of the two golden thermal elements of control, the product structure of applicable different current specification has been realized connecting between the system, such connecting mode, both guaranteed that the location was reliable, and made again technique simpler, located more accurate, simplified structure, save cost, the production debugging qualification rate is increased, repair rate reduces.
Claims (4)
1. the thermoelectric magnetic system of a miniature circuit breaker, comprise arc leading angle (1), silver contact (2), integral type yoke (3), coil (4), soft connection (5), two golden thermal elements (6), terminal block (7), plastic sleeve (8), static iron core (9), moving iron core (10), iron core spring (11) and push rod (12), it is characterized in that: described integral type yoke (3) is fixedly connected with arc leading angle (1), silver contact (2) is fixed on the static contact panel of integral type yoke (3), static iron core (9) is contained in the flanging bore of integral type yoke (3), one end of coil (4) is connected with terminal block (7), two golden thermal elements (6) are connected with coil (4) by soft connection (5), two golden thermal elements (6) are fixed on the boss place of integral type yoke (3), push rod (12) passes static iron core (9) lumen orifice, moving iron core (10) is contained in the upper close static iron core (9) of push rod (12) and locates to be positioned at coil (4), iron core spring (11) is sleeved on and is positioned at moving iron core (10) and static iron core (9) inner chamber on the push rod (12), and plastic sleeve (8) is contained on moving iron core (10) and static iron core (9) periphery and is arranged in coil (4) inner chamber.
2. the thermoelectric magnetic system of a kind of miniature circuit breaker as claimed in claim 1, it is characterized in that: described silver contact (2) is welded on the static contact panel of integral type yoke (3).
3. the thermoelectric magnetic system of a kind of miniature circuit breaker as claimed in claim 1, it is characterized in that: described integral type yoke (3) is connected with arc leading angle (1) spot welding.
4. the thermoelectric magnetic system of a kind of miniature circuit breaker as claimed in claim 1, it is characterized in that: described static iron core (9) riveted is in the flanging bore of integral type yoke (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364060 CN202772081U (en) | 2012-07-25 | 2012-07-25 | Thermal electromagnetic system of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364060 CN202772081U (en) | 2012-07-25 | 2012-07-25 | Thermal electromagnetic system of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202772081U true CN202772081U (en) | 2013-03-06 |
Family
ID=47778634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220364060 Expired - Lifetime CN202772081U (en) | 2012-07-25 | 2012-07-25 | Thermal electromagnetic system of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202772081U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681143A (en) * | 2013-09-30 | 2014-03-26 | 长城电器集团有限公司 | Electromagnetic device of breaker |
| CN105118748A (en) * | 2015-09-08 | 2015-12-02 | 德力西电气有限公司 | Electromagnetic mechanism of miniature circuit breaker |
| CN107210170A (en) * | 2014-11-20 | 2017-09-26 | 伊顿工业（奥地利）有限公司 | The breaker of the bimetallic element of passive heating including the yoke that acts on electromagnetic tripping apparatus |
| CN110289198A (en) * | 2019-07-26 | 2019-09-27 | 贵州泰永长征技术股份有限公司 | A kind of current limliting and quick disjunction structure of miniature circuit breaker |
| CN113539755A (en) * | 2020-04-17 | 2021-10-22 | 北京人民电器厂有限公司 | Circuit breaker |
-
2012
- 2012-07-25 CN CN 201220364060 patent/CN202772081U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681143A (en) * | 2013-09-30 | 2014-03-26 | 长城电器集团有限公司 | Electromagnetic device of breaker |
| CN107210170A (en) * | 2014-11-20 | 2017-09-26 | 伊顿工业（奥地利）有限公司 | The breaker of the bimetallic element of passive heating including the yoke that acts on electromagnetic tripping apparatus |
| CN107210170B (en) * | 2014-11-20 | 2019-12-03 | 伊顿工业（奥地利）有限公司 | Breaker including acting on the bimetallic element of the magnetic yoke of electromagnetic tripping apparatus passively heated |
| CN105118748A (en) * | 2015-09-08 | 2015-12-02 | 德力西电气有限公司 | Electromagnetic mechanism of miniature circuit breaker |
| CN110289198A (en) * | 2019-07-26 | 2019-09-27 | 贵州泰永长征技术股份有限公司 | A kind of current limliting and quick disjunction structure of miniature circuit breaker |
| CN110289198B (en) * | 2019-07-26 | 2024-03-01 | 贵州泰永长征技术股份有限公司 | Current limiting and quick breaking structure of miniature circuit breaker |
| CN113539755A (en) * | 2020-04-17 | 2021-10-22 | 北京人民电器厂有限公司 | Circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |