CN203644711U - Magnetic system structure of small circuit breaker - Google Patents
Magnetic system structure of small circuit breaker Download PDFInfo
- Publication number
- CN203644711U CN203644711U CN201320871094.0U CN201320871094U CN203644711U CN 203644711 U CN203644711 U CN 203644711U CN 201320871094 U CN201320871094 U CN 201320871094U CN 203644711 U CN203644711 U CN 203644711U
- Authority
- CN
- China
- Prior art keywords
- iron core
- circuit breaker
- yoke
- coil
- system structure
- Prior art date
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 25
- 230000003068 static effect Effects 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a small circuit breaker and particularly relates to a magnetic system structure inside the small circuit breaker. The magnetic system structure of a small circuit breaker is characterized in that the magnetic yoke integrally forms a U-shaped frame; the upper side faces of two sides of the magnetic yoke are respectively provided with circular arc concave surfaces; the magnetic yoke is laterally fixed and clamped on the shell of the circuit breaker; and an iron core assembly is erected on the circular arc concave surfaces of the two sides of the magnetic yoke via one end of a coil skeleton and one end of a static iron core. By adopting the above scheme, problems existing in the prior art can be overcome; reliable and convenient assembly of the magnetic system structure can be provided; the magnetic yoke, the coil and the static contact are separately designed; welding points are reduced; the conductive ability is improved; the design of the magnetic yoke and the static iron core enhances a magnetic field passing through a moving iron core, and instant tripping stability is improved.
Description
Technical field
The utility model relates to a kind of miniature circuit breaker, refers to especially the magnetic system structure that it is inner.
Background technology
Current known miniature circuit breaker magnetic system has two kinds of situations: one is not to be with yoke, another kind is with yoke, wherein not the circuit breaker with yoke in instantaneous protection process, due to the magnetic line of force disperse, moving iron core is magnetic field force induced less than normal, can affect the stability of product instantaneous trip; With the circuit breaker of yoke, mostly yoke, together with coil and the first-class welding of stationary contact, increases number of welds, increases welding process flow, can increase line resistance simultaneously,, and then reduce product temperature rise performance, affect product and use.
Summary of the invention
The utility model overcomes the problem that prior art exists, provide a kind of magnetic system structure reliably convenient for assembly, the separate design of yoke and coil and fixed contact, reduce pad, improve conductive capability, yoke and static iron core design are strengthened, by moving core field, improving the novel miniature circuit breaker magnetic system structure of instantaneous trip stability.
Realize above-mentioned purpose, the utility model adopts following technology: a kind of miniature circuit breaker magnetic system structure, include yoke, core assembly and contact supporting, it is characterized in that: described yoke includes two sides and a horizontal edge, wherein horizontal edge is placed in the framework that forms entirety one-tenth " U " shape between dual-side, on the upper side of described yoke dual-side, be respectively arranged with circular arc concave surface, described yoke side direction fixed card is located on the housing of circuit breaker, described core assembly includes and comprises moving iron core, instantaneous spring, coil rack, static iron core and push rod, wherein static iron core is fixed on one end of coil rack, core assembly is erected on the circular arc concave surface of yoke dual-side by one end of coil rack and one end of static iron core.
Further setting of the present utility model is: described contact supporting includes and comprises terminal block, coil and fixed contact, the coil rack of described core assembly is positioned at moving iron core one end and is provided with a circle chimb, on this chimb, be provided with breach, one end of coil is stretched out with terminal block and is connected from breach, and the other end of coil connects fixed contact.
By the effect that adopts such scheme to reach be: 1, the yoke of separate type and contact supporting design, reduce weld number, improve production efficiency and reliability; 2, coordinating of " U " shape of yoke design and static iron core, improve the effect of confining magnetic field and the concentration magnetic line of force, in the time of coil electricity, moving iron core can be subject to larger magnetic force, the stability of raising instantaneous trip.
Below in conjunction with drawings and embodiments, the utility model is described further.
Brief description of the drawings
Fig. 1 is the overall structure schematic diagram of the utility model embodiment;
Fig. 2 is the magnetic yoke structure schematic diagram of the utility model embodiment;
Fig. 3 is the cutaway view of the core assembly of the utility model embodiment;
Fig. 4 reflects the structural representation of coil rack chimb opening for the utility model embodiment.
Specific embodiment
As shown in Fig. 1-Fig. 4, a kind of miniature circuit breaker magnetic system structure, include yoke 1, core assembly 2 and contact supporting 3, described yoke 1 includes two sides 11 and a horizontal edge 12, wherein horizontal edge 12 is placed in the framework that forms entirety one-tenth " U " shape between dual-side 11, on the upper side of described yoke 1 dual-side 11, be respectively arranged with circular arc concave surface 111, circular arc concave surface 111 is set according to size, described yoke 1 side direction fixed card is located on the housing of circuit breaker, described core assembly 2 includes and comprises moving iron core 21, instantaneous spring 22, coil rack 23, static iron core 24 and push rod 25, wherein static iron core 24 is fixed on one end of coil rack 23, core assembly 2 is erected on the circular arc concave surface 111 of yoke 1 dual-side 11 by one end of coil rack 23 and one end of static iron core 24.
In the utility model embodiment, described contact supporting 3 includes and comprises terminal block 31, coil 32 and fixed contact 33, the coil rack 23 of described core assembly 2 is positioned at moving iron core 21 one end and is provided with a circle chimb 231, on this chimb 231, be provided with breach 2311, one end of coil 32 is stretched out with terminal block 31 and is connected from breach 2311, and the other end of coil 32 connects fixed contact 33.
By the effect that adopts such scheme to reach be: one, the yoke 1 of separate type designs with contact supporting 3, reduces weld number, improves production efficiency and reliability; Two, coordinating of " U " shape of yoke 1 design and static iron core 24, improve the effect of confining magnetic field and the concentration magnetic line of force, in the time of coil electricity, moving iron core 21 can be subject to larger magnetic force, the stability of raising instantaneous trip.
The utility model discloses, and is the one of preferred embodiment, and local change or modification and come from technological thought of the present utility model and be easy to by haveing the knack of the people of this technology the person of knowing by inference such as, does not all take off patent category of the present utility model.
Claims (2)
1. a miniature circuit breaker magnetic system structure, include yoke, core assembly and contact supporting, it is characterized in that: described yoke includes two sides and a horizontal edge, wherein horizontal edge is placed in the framework that forms entirety one-tenth " U " shape between dual-side, on the upper side of described yoke dual-side, be respectively arranged with circular arc concave surface, described yoke side direction fixed card is located on the housing of circuit breaker, described core assembly includes and comprises moving iron core, instantaneous spring, coil rack, static iron core and push rod, wherein static iron core is fixed on one end of coil rack, core assembly is erected on the circular arc concave surface of yoke dual-side by one end of coil rack and one end of static iron core.
2. miniature circuit breaker magnetic system structure according to claim 1, it is characterized in that: described contact supporting includes and comprises terminal block, coil and fixed contact, the coil rack of described core assembly is positioned at moving iron core one end and is provided with a circle chimb, on this chimb, be provided with breach, one end of coil is stretched out with terminal block and is connected from breach, and the other end of coil connects fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871094.0U CN203644711U (en) | 2013-12-26 | 2013-12-26 | Magnetic system structure of small circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320871094.0U CN203644711U (en) | 2013-12-26 | 2013-12-26 | Magnetic system structure of small circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203644711U true CN203644711U (en) | 2014-06-11 |
Family
ID=50875937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320871094.0U Expired - Lifetime CN203644711U (en) | 2013-12-26 | 2013-12-26 | Magnetic system structure of small circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203644711U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157522A (en) * | 2014-08-28 | 2014-11-19 | 三信国际电器上海有限公司 | Miniature circuit breaker magnetic system |
| CN106898528A (en) * | 2015-12-21 | 2017-06-27 | 浙江正泰电器股份有限公司 | The Pyromagnetic release of breaker |
-
2013
- 2013-12-26 CN CN201320871094.0U patent/CN203644711U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157522A (en) * | 2014-08-28 | 2014-11-19 | 三信国际电器上海有限公司 | Miniature circuit breaker magnetic system |
| CN106898528A (en) * | 2015-12-21 | 2017-06-27 | 浙江正泰电器股份有限公司 | The Pyromagnetic release of breaker |
| CN106898528B (en) * | 2015-12-21 | 2019-09-06 | 浙江正泰电器股份有限公司 | The Pyromagnetic release of 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: 20140611 |