CN201256088Y - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN201256088Y CN201256088Y CNU200820133591XU CN200820133591U CN201256088Y CN 201256088 Y CN201256088 Y CN 201256088Y CN U200820133591X U CNU200820133591X U CN U200820133591XU CN 200820133591 U CN200820133591 U CN 200820133591U CN 201256088 Y CN201256088 Y CN 201256088Y
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- guide post
- permanent magnet
- breaker according
- iron core
- 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
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Abstract
The utility model relates to a circuit breaker comprising a switching tube, an insulator connected with the switching tube, and a permanent-magnetic mechanism. A guide rod and a core-contact spring are disposed on the insulator, the core-contact spring is sleeved on the guide rod, part of the guide rod and the core-contact spring are embedded in the permanent-magnetic mechanism, part of the guide rod and the core-contact spring extends into a cavity of the permanent-magnetic mechanism, the guide rod and a moving iron core are connected together through a pushing rod shaft, and the insulator is directly and fixedly connected with the permanent-magnetic mechanism together. The circuit breaker has the advantages of simple structure, reduced cost, convenient operation, less friction loss, lower breaker height, wide application and convenient connection.
Description
Technical field
The utility model relates to a kind of circuit breaker, and more particularly, it relates to a kind of circuit breaker with permanent magnet mechanism.
Background technology
The straight line driving permanent magnet mechanism that uses in high, medium and low voltage breaker, the contactor in the electric power system at present is in height all high than product of the same type, general insulator is arranged on the top of permanent magnet mechanism, guide post with touch heart spring and be connected by a jockey in the middle of being arranged on the top of permanent magnet mechanism, therefore under many circumstances since height problem limited and used and promote.For example application number is 200710159063.1, publication number is the CN101188166A patent application, a kind of permanent magnet mechanism, comprise upper shell and lower house, between upper shell and lower house, be provided with moving unshakable in one's determination, be provided with guide post on three on moving top unshakable in one's determination, on last guide post top insulator and contact spring are installed, are provided with a closing coil and permanent magnet in moving both sides unshakable in one's determination.In actual use, because guide post and touch the top of heart spring at permanent magnet mechanism, intermediate demand increases union piece, thereby cause that machine components increase, deterioration increasing in the use, power demand cross high not additional demand, in a lot of occasions also because excessive height causes using is restricted.
The utility model content
Technical problem to be solved in the utility model is to overcome the defective of above-mentioned prior art, provide a kind of simple in structure, friction loss is little, the machine components number is few, highly low, be fit to multiple applications, circuit breaker easy to connect.
A kind of circuit breaker that provides according to the utility model, comprise switching tube, the insulator that is connected with switching tube, permanent magnet mechanism, described insulator is provided with guide post and touches heart spring, the described heart spring housing that touches is contained on the guide post, the part of described guide post and touch heart spring and embed in the permanent magnet mechanism.
A kind of circuit breaker that provides according to the utility model also has following attached technical characterictic:
Described permanent magnet mechanism comprises housing, is installed in the moving iron core in the described housing, the coil and the permanent magnet of the described moving motion unshakable in one's determination of driving, and an end of described guide post is connected with described moving iron core.
Described housing internal shaping has a cavity volume, the part of described guide post and touch heart spring and be positioned at described cavity volume.
The upper end of described moving iron core is provided with the groove of upward opening, and the top of described housing and the corresponding position of described groove are provided with a through hole, and the part of described guide post and touch heart spring and pass described through hole stretches in the described groove.
Be provided with pull rod shaft in the groove of described moving iron core, described moving iron core and described guide post link together by described pull rod shaft.
Described insulator and described permanent magnet mechanism are fixed together.
Described coil comprises closing coil and switching winding, and described closing coil and described switching winding are positioned at the two ends of described permanent magnet.
The center line of described groove and the center line of guide post coincide.
The internal diameter of described groove matches with the external diameter that touches heart spring.
Described pull rod shaft horizontal direction is installed on the moving iron core.
A kind of circuit breaker that provides according to the utility model compared with prior art has following beneficial effect: guide post part and touch heart spring and embed permanent magnet mechanism inside, union piece has been reduced in the centre, make whole circuit breaker height reduce, the scope of application is wider, structure is simpler, deterioration reduction, power demand reduce, cost reduces, dependable performance, the circuit breaker that cost is cheaper.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the permanent magnet mechanism structural representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description:
Referring to Fig. 1, the embodiment of a kind of circuit breaker that provides at the utility model, comprise switching tube 1, the insulator 2 that is connected with switching tube 1, permanent magnet mechanism 3, described insulator 2 is provided with guide post 4 and touches heart spring 5, the described heart spring 5 that touches is sleeved on the guide post 4, the part of described guide post 4 and touch heart spring 5 and embed in the permanent magnet mechanisms 3.The utility model will touch heart spring 5 and embed in the permanent magnet mechanism 3, described insulator 2 directly is fixed together with described permanent magnet mechanism 3, thereby shortened the height of whole circuit breaker, satisfied the demand of different use height because the minimizing of machine components, make simple in structure, cost is low, reduced friction in the use and loss, the scope of application is wider.
Referring to Fig. 2, in the foregoing description that the utility model provides, described permanent magnet mechanism 3 comprises housing 6, described housing 6 internal shapings have a cavity volume 61, the part of described guide post 4 and touch heart spring 5 and be positioned at described cavity volume 61, moving iron core 8, coil 9 and permanent magnet 10 are installed in the described housing 6, described coil 9 comprises closing coil 91 and switching winding 92, described permanent magnet 10 is formed by two, be arranged at closing coil 91 and switching winding 92 centre positions respectively, an end of described guide post 4 is connected with described moving unshakable in one's determination 8.The described cavity volume 61 of present embodiment is provided with the groove 81 of upward opening for described moving unshakable in one's determination 8 upper end, the top of described housing 6 and described groove 81 corresponding positions are provided with a through hole 62, the part of described guide post 4 and touch heart spring 5 and pass described through hole 62, stretch in the described groove 81, the center line of the center line of described groove 81 and guide post 4 coincides, thereby reduced the generation of side force, bounce occurred when having avoided moving unshakable in one's determination 8 to do combined floodgate, separating brake motion, prolonged useful life.
Referring to Fig. 1 and Fig. 2, the internal diameter of described groove 81 matches with the diameter that touches heart spring 5, be provided with pull rod shaft 82 in the described groove 81, described pull rod shaft 82 horizontal directions are installed on moving unshakable in one's determination 8, described moving unshakable in one's determination 8 and described guide post 4 link together by described pull rod shaft 82, when work, moving unshakable in one's determination 8, pull rod shaft 82 is done along guide post 4, following rectilinear motion, in the time will realizing closing a floodgate motion, the closing coil discharge, moving unshakable in one's determination 8 and pull rod shaft 82 under the effect of strong magnetic field upwards rectilinear motion promote guide post 4 and touch heart spring 5 to make switching tube 1 contact closure, moving unshakable in one's determination 8 and pull rod shaft 82 under the magneticaction of permanent magnet 10, be locked in closing position.In the time will realizing the separating brake motion, the switching winding discharge, moving iron core downward rectilinear motion under the effect of strong magnetic field promotes guide post 4 and touches heart spring 5 to make switching tube 1 contact separately finish sub-switching operation, and same moving iron core is locked in the separating brake position under the magneticaction of permanent magnet 10.
Claims (10)
1, a kind of circuit breaker, comprise switching tube (1), the insulator (2) that is connected with switching tube (1), permanent magnet mechanism (3), described insulator (2) is provided with guide post (4) and touches heart spring (5), the described heart spring (5) that touches is sleeved on the guide post (4), it is characterized in that: the part of described guide post (4) and touch heart spring (5) and embed in the permanent magnet mechanism (3).
2, a kind of circuit breaker according to claim 1, it is characterized in that: described permanent magnet mechanism (3) comprises housing (6), is installed in the moving iron core (8) in the described housing (6), the coil (9) and the permanent magnet (10) of the described moving iron core of driving (8) motion, and an end of described guide post (4) is connected with described moving iron core (8).
3, a kind of circuit breaker according to claim 2 is characterized in that: described housing (6) internal shaping has a cavity volume (61), the part of described guide post (4) and touch heart spring (5) and be positioned at described cavity volume (61).
4, a kind of circuit breaker according to claim 2, it is characterized in that: the upper end of described moving iron core (8) is provided with the groove (81) of upward opening, the top of described housing (6) and the corresponding position of described groove (81) are provided with a through hole (62), the part of described guide post (4) and touch heart spring (5) and pass described through hole (62) stretches in the described groove (81).
5, a kind of circuit breaker according to claim 4 is characterized in that: be provided with pull rod shaft (82) in the groove (81) of described moving iron core (8), described moving iron core (8) and described guide post (4) link together by described pull rod shaft (82).
6, a kind of circuit breaker according to claim 1 is characterized in that: described insulator (2) is fixed together with described permanent magnet mechanism (3).
7, a kind of circuit breaker according to claim 2 is characterized in that: described coil (9) comprises closing coil (91) and switching winding (92), and described closing coil (91) and described switching winding (92) are positioned at the two ends of described permanent magnet (10).
8, a kind of circuit breaker according to claim 4 is characterized in that: the center line of the center line of described groove (81) and guide post (4) coincides.
9, a kind of circuit breaker according to claim 4 is characterized in that: the internal diameter of described groove (81) matches with the external diameter that touches heart spring (5).
10, a kind of circuit breaker according to claim 5 is characterized in that: described pull rod shaft (82) horizontal direction is installed on moving (8) unshakable in one's determination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820133591XU CN201256088Y (en) | 2008-09-12 | 2008-09-12 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820133591XU CN201256088Y (en) | 2008-09-12 | 2008-09-12 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201256088Y true CN201256088Y (en) | 2009-06-10 |
Family
ID=40739416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820133591XU Expired - Lifetime CN201256088Y (en) | 2008-09-12 | 2008-09-12 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201256088Y (en) |
-
2008
- 2008-09-12 CN CNU200820133591XU patent/CN201256088Y/en not_active Expired - Lifetime
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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 |
Granted publication date: 20090610 |
|
| CX01 | Expiry of patent term |