CN203674129U - Small-sized zero line breaker - Google Patents
Small-sized zero line breaker Download PDFInfo
- Publication number
- CN203674129U CN203674129U CN201320731627.5U CN201320731627U CN203674129U CN 203674129 U CN203674129 U CN 203674129U CN 201320731627 U CN201320731627 U CN 201320731627U CN 203674129 U CN203674129 U CN 203674129U
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- arc
- zero line
- arc extinguishing
- small
- grid pieces
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Abstract
The utility model discloses a small-sized zero line breaker comprising a housing, an operation mechanism, a zero line static contact, a central control circuit module, and an arc extinguishing assembly. The operation mechanism comprises a connecting/disconnecting handle, a zero line dynamic contact, and a remote shunt excitation coil. The connecting/disconnecting handle is disposed right above the remote shunt excitation coil, and the central control circuit module is disposed right under the remote shunt excitation coil. The arc extinguishing assembly comprises arc guiding convex plates disposed on the inner wall of the housing, a plurality of arc extinguishing grid sheets fixedly disposed in the housing, and a plurality of arc extinguishing through holes disposed in the bottom wall of the housing. Every two adjacent arc guiding convex plates on the same inner wall can be clamped together to form an arc guiding groove, and every two adjacent arc extinguishing grid sheets can be clamped together to form an arc extinguishing groove. The small-sized zero line breaker is advantageous in that the arc extinguishing assembly is additionally provided under the precondition of reserving enough space for the remote shunt excitation coil and the central control module; the electrical arcs between the zero line static contact and the zero line dynamic contact can be extinguished, and therefore the electrical parts cannot be damaged, the utilization performance and the service lifetime can be effectively guaranteed.
Description
Technical field
The utility model belongs to breaker structure design field, is specifically related to a kind of small-sized zero line break device.
Background technology
Traditional 2P formula circuit breaker comprises for the small-sized live wire circuit breaker of break-make live wire and for the small-sized zero line break device of break-make zero line.When combined floodgate power transmission, require zero line break device first closed, and then closed live wire circuit breaker; When separating brake power-off, require live wire circuit breaker first to disconnect, after zero line break device, disconnect; Even if there is a several milliseconds of time difference to millisecond both operate times; This operate time is poor by the operating mechanism between the two and link gear realization; So in traditional small-sized live wire circuit breaker, to be provided with special arc control device, and be arranged on electromagnetic trip coil in small-sized live wire circuit breaker under; In traditional small-sized zero line break device due to without arc extinguishing, so without arc control device are set.
But in concrete manufacturing, be difficult to guarantee the consistency of each product, or due to the manufacturing ability difference of each producer, always have some products and can not reach above-mentioned requirements, the operate time of for example live wire circuit breaker and zero line break device is poor too short, or do not have operate time poor at all, even actual act is completely contrary with requirement, these situations will cause in the time that zero line dynamic/static contact disconnects, also having larger electric arc to produce in zero line break device, directly reduce useful life, even burn out zero line dynamic/static contact, cause electric fault.
Utility model content
The purpose of this utility model is to provide one can extinguish electric arc between zero line dynamic/static contact, thereby prevents that it from damaging electric component, and then effectively guarantees the small-sized zero line break device in serviceability and useful life.
The technical scheme that realizes the utility model object is: a kind of small-sized zero line break device, comprises housing, operating mechanism, zero line fixed contact, middle control circuit module and arc extinguishing assembly; Described operating mechanism comprises divide-shut brake handle, zero line moving contact and long-range shunt opening coil; Described divide-shut brake handle be arranged on long-range shunt opening coil directly over, middle control circuit module be arranged on long-range shunt opening coil under; Described arc extinguishing assembly comprises and is arranged on leading arc flange, be fixedly installed on the multiple arc extinguishing grid pieces in housing and be arranged on the multiple arc extinguishing open-works in shell bottom wall in inner walls; Lead arc flange clamping formation arc guiding groove for adjacent two on same inwall, two adjacent arc extinguishing grid pieces prices form arc chute.
In technique scheme, zero line fixed contact comprises fixed contact support plate and is arranged on the fixed contact on fixed contact support plate; Fixed contact support plate comprises power part for fixed contact is set, is positioned at the fixed part of power part top and is positioned at the arc leading angle of power part below; Power part arranges along the vertical direction, and the bottom of power part to left down square neck tiltedly extends to form described arc leading angle; The shape of each arc extinguishing grid pieces is straight tabular, and each arc extinguishing grid pieces arranges along the vertical direction; The bottom of arc leading angle is positioned at the left side of the arc extinguishing grid pieces in the leftmost side.
In technique scheme, zero line moving contact comprises moving contact steady arm and is arranged on the moving contact on moving contact steady arm.
In technique scheme, the top of the arc extinguishing grid pieces in the rightmost side is bent to form a semicircle striking portion to the right, and the end of this semicircle striking portion extends to form an arc striking piece downwards.
In technique scheme, arc striking piece arranges along the vertical direction, and the bottom of arc striking piece is higher than the bottom of arc extinguishing grid pieces.
In technique scheme, the quantity of arc extinguishing grid pieces is six, and wherein the middle-end top of five arc extinguishing grid pieces in left side is provided with striking breach.
In technique scheme, the shape of each striking breach is V-shape or Y-shaped.
In technique scheme, in inner walls, lead arc flange just to a corresponding arc extinguishing grid pieces setting; The outlet of each arc guiding groove bottom is the import setting to a corresponding arc chute just.
In technique scheme, described middle control circuit module is control circuit module in pre-payment, and described long-range shunt opening coil is electrically connected with control circuit module in pre-payment; Described middle control circuit module is arranged on the left side of arc extinguishing grid pieces.
The utility model has improved the structure of traditional zero line break device, being under the prerequisite of long-range shunt opening coil and the remaining enough installation sites of middle control circuit module, has also increased arc extinguishing assembly; Thereby can extinguish electric arc between zero line dynamic/static contact, thereby prevent that it from damaging electric component, and then effectively guarantee serviceability and useful life.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the present utility model;
A kind of perspective view of Fig. 2 when to be circuit breaker shown in Fig. 1 observe from another angle;
A kind of perspective view of Fig. 3 when to be circuit breaker shown in Fig. 1 observe from the 3rd angle;
Fig. 4 is a kind of front view of circuit breaker shown in Fig. 1.
Embodiment
(embodiment 1)
The present embodiment is a kind of small-sized zero line break device, sees shown in Fig. 1 to Fig. 4, comprises housing 1, operating mechanism 2, zero line fixed contact 3, middle control circuit module (not drawing on figure) and arc extinguishing assembly 8; Housing 1 in the present embodiment comprises first half housing (not drawing on figure) and later half housing 11, for simplicity, does not draw first half housing.
Described operating mechanism comprises divide-shut brake handle 5, zero line moving contact 6 and long-range shunt opening coil 7; Described divide-shut brake handle be arranged on long-range shunt opening coil directly over, middle control circuit module be arranged on long-range shunt opening coil under; Described arc extinguishing assembly comprises and is arranged on leading arc flange 81, be fixedly installed on the multiple arc extinguishing grid pieces 82 in housing and be arranged on the multiple arc extinguishing open-works 83 in shell bottom wall in inner walls; Lead arc flange clamping formation arc guiding groove 84 for adjacent two on same inwall, two adjacent arc extinguishing grid pieces prices form arc chute 85.
The present embodiment does not draw concrete middle control circuit module, but has drawn the storage tank 41 in inner walls that is positioned at for putting control circuit module.For traditional small-sized live wire circuit breaker, arc control device are just in time arranged on the position described in this storage tank 41; But owing to needing in the present embodiment that middle control circuit module is set, thus arc control device can not be set herein again, must alternative elsewhere.
Zero line fixed contact comprises fixed contact support plate 31 and is arranged on the fixed contact 32 on fixed contact support plate; Fixed contact support plate comprises power part 311 for fixed contact is set, is positioned at the fixed part 312 of power part top and is positioned at the arc leading angle 313 of power part below; Power part arranges along the vertical direction, and the bottom of power part to left down square neck tiltedly extends to form described arc leading angle; The shape of each arc extinguishing grid pieces is straight tabular, and each arc extinguishing grid pieces arranges along the vertical direction; The bottom of arc leading angle is positioned at the left side of the arc extinguishing grid pieces in the leftmost side.
Zero line moving contact comprises moving contact steady arm 61 and is arranged on the moving contact 62 on moving contact steady arm.
The quantity of arc extinguishing grid pieces is six, and wherein the middle-end top of five arc extinguishing grid pieces in left side is provided with striking breach 823.The shape of each striking breach is V-shape or Y-shaped.
The top of the arc extinguishing grid pieces in the rightmost side is bent to form a semicircle striking portion 821 to the right, and the end of this semicircle striking portion extends to form an arc striking piece 822 downwards.Arc striking piece arranges along the vertical direction, and the bottom of arc striking piece is higher than the bottom of arc extinguishing grid pieces.
In inner walls, lead arc flange just to a corresponding arc extinguishing grid pieces setting; The outlet of each arc guiding groove bottom is the import setting to a corresponding arc chute just.
In the present embodiment, described middle control circuit module is control circuit module in pre-payment, and described long-range shunt opening coil is electrically connected with control circuit module in pre-payment; Described middle control circuit module is arranged on the left side of arc extinguishing grid pieces.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all execution modes.And these belong to apparent variation or the variation that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (9)
1. a small-sized zero line break device, comprises housing (1), operating mechanism (2), zero line fixed contact (3) and middle control circuit module; Described operating mechanism comprises divide-shut brake handle (5), zero line moving contact (6) and long-range shunt opening coil (7); Described divide-shut brake handle be arranged on long-range shunt opening coil directly over, middle control circuit module be arranged on long-range shunt opening coil under;
It is characterized in that: also comprise arc extinguishing assembly (8); Described arc extinguishing assembly comprises and is arranged on leading arc flange (81), be fixedly installed on the multiple arc extinguishing grid pieces (82) in housing and be arranged on the multiple arc extinguishing open-works (83) in shell bottom wall in inner walls; Lead arc flange clamping formation arc guiding groove (84) for adjacent two on same inwall, two adjacent arc extinguishing grid pieces prices form arc chute (85).
2. small-sized zero line break device according to claim 1, is characterized in that: zero line fixed contact comprises fixed contact support plate (31) and is arranged on the fixed contact (32) on fixed contact support plate; Fixed contact support plate comprises power part (311) for fixed contact is set, is positioned at the fixed part (312) of power part top and is positioned at the arc leading angle (313) of power part below; Power part arranges along the vertical direction, and the bottom of power part to left down square neck tiltedly extends to form described arc leading angle;
The shape of each arc extinguishing grid pieces is straight tabular, and each arc extinguishing grid pieces arranges along the vertical direction; The bottom of arc leading angle is positioned at the left side of the arc extinguishing grid pieces in the leftmost side.
3. small-sized zero line break device according to claim 2, is characterized in that: zero line moving contact comprises moving contact steady arm (61) and is arranged on the moving contact (62) on moving contact steady arm.
4. small-sized zero line break device according to claim 2, it is characterized in that: the top of the arc extinguishing grid pieces in the rightmost side is bent to form a semicircle striking portion (821) to the right, and the end of this semicircle striking portion extends to form an arc striking piece (822) downwards.
5. small-sized zero line break device according to claim 4, it is characterized in that: arc striking piece arranges along the vertical direction, and the bottom of arc striking piece is higher than the bottom of arc extinguishing grid pieces.
6. small-sized zero line break device according to claim 2, is characterized in that: the quantity of arc extinguishing grid pieces is six, and wherein the middle-end top of five arc extinguishing grid pieces in left side is provided with striking breach (823).
7. small-sized zero line break device according to claim 6, is characterized in that: the shape of each striking breach is V-shape or Y-shaped.
8. small-sized zero line break device according to claim 2, is characterized in that: in inner walls, lead arc flange just to a corresponding arc extinguishing grid pieces setting; The outlet of each arc guiding groove bottom is the import setting to a corresponding arc chute just.
9. small-sized zero line break device according to claim 1, is characterized in that: described middle control circuit module is control circuit module in pre-payment, and described long-range shunt opening coil is electrically connected with control circuit module in pre-payment; Described middle control circuit module is arranged on the left side of arc extinguishing grid pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320731627.5U CN203674129U (en) | 2013-11-15 | 2013-11-15 | Small-sized zero line breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320731627.5U CN203674129U (en) | 2013-11-15 | 2013-11-15 | Small-sized zero line breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203674129U true CN203674129U (en) | 2014-06-25 |
Family
ID=50970396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320731627.5U Expired - Fee Related CN203674129U (en) | 2013-11-15 | 2013-11-15 | Small-sized zero line breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203674129U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103839736A (en) * | 2013-11-15 | 2014-06-04 | 宏秀电气有限公司 | Small-sized null line breaker |
| CN105047496A (en) * | 2015-08-06 | 2015-11-11 | 浙江凯发电气股份有限公司 | Prepaid breaker arc-initiating device |
-
2013
- 2013-11-15 CN CN201320731627.5U patent/CN203674129U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103839736A (en) * | 2013-11-15 | 2014-06-04 | 宏秀电气有限公司 | Small-sized null line breaker |
| CN105047496A (en) * | 2015-08-06 | 2015-11-11 | 浙江凯发电气股份有限公司 | Prepaid breaker arc-initiating device |
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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 |
Granted publication date: 20140625 Termination date: 20141115 |
|
| EXPY | Termination of patent right or utility model |