CN104201071B - A kind of miniature circuit breaker with contact fast closing mechanism - Google Patents
A kind of miniature circuit breaker with contact fast closing mechanism Download PDFInfo
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- CN104201071B CN104201071B CN201410372252.7A CN201410372252A CN104201071B CN 104201071 B CN104201071 B CN 104201071B CN 201410372252 A CN201410372252 A CN 201410372252A CN 104201071 B CN104201071 B CN 104201071B
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- moving contact
- locating part
- contact
- lever
- fixture block
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Abstract
A kind of miniature circuit breaker with contact fast closing mechanism. having solved existing breaker does not have quick-acting closure, has the problem of potential safety hazard. it comprises housing, in described housing, be provided with moving contact, lever and locating part, described lever is provided with pushing block, described moving contact is provided with the first fixture block, in described housing, be hinged with locating part, described locating part has the primary importance of blocking mutually with moving contact the first fixture block and the second place that is promoted to make locating part and the release of the de-card of the first fixture block by pushing block, described return unit has and lever, the first state of moving contact interlock, the second state of return unit energy storage when locating part blocks mutually with the first fixture block, after the release of the de-card of locating part and the first fixture block, return unit release mechanical energy makes the third state of moving contact quick-make. when the moving contact that the invention enables breaker is soon closed, can lean on mechanical energy storage quick-make contact, avoid external force to operate the impact on contact closure speed.
Description
Technical field
The present invention relates to a kind of breaker, be specifically related to a kind of miniature circuit breaker with contact fast closing mechanism.
Background technology
Comprise handle, U-shaped bolt, snap close and the contact system of miniature circuit breaker form. When closing operation, handle rotates and drives U-shaped bolt and then drive screw-home movement, hasp strap movable contact system closure. In operating process, handle torsion spring moment increases with handle rotational angle, and contact system is closed in the increase process gradually of torsion spring moment. Therefore the closing speed of contact system is still relevant with manual operation speed, so just has influence on the reliability of combined floodgate and the operation lifetime of product. Therefore, breaker needs quick-make function to improve the reliability of product.
Quick-make function is mainly the irrelevant manual operation of the equipment of realizing, and avoids the security incident because of the improper initiation of manual operation. Existing most of breaker is without quick-make function, thereby be subject to the impact of the factors such as operating personnel's gimmick, dynamics, product installation site, product possible speed in closing course is slow or closed not in place, once contact pitch causes disruptive discharge close to too, and contact cannot be closed in time, gently strengthen contact loss, heavy easily cause security incident.
Summary of the invention
There is no quick-acting closure for solving existing breaker in background technology, have the problem of potential safety hazard, the invention provides a kind of miniature circuit breaker with contact fast closing mechanism.
Technical scheme of the present invention is: a kind of miniature circuit breaker with contact fast closing mechanism, comprise housing, in described housing, be provided with static contact, moving contact and lever, described moving contact is articulated with on lever by bearing pin, described bearing pin is provided with return unit, block mutually with moving contact one end of described return unit, the other end blocks mutually with lever, described return unit has the movement tendency that drives moving contact to rotate around bearing pin, described lever is provided with pushing block, described moving contact is provided with the first fixture block, in described housing, be hinged with locating part, described locating part has the primary importance of blocking mutually with moving contact the first fixture block and the second place that is promoted to make locating part and the release of the de-card of the first fixture block by pushing block, described return unit has and lever, the first state of moving contact interlock, when locating part blocks mutually with the first fixture block, lever rotates the second state that makes return unit energy storage, after the release of the de-card of locating part and the first fixture block, return unit release mechanical energy makes the third state of moving contact quick-make.
As a modification of the present invention, described lever is provided with gib head, and described bearing pin is located on gib head.
As a further improvement on the present invention, described gib head has two, is formed for the storage tank of accommodating moving contact between two described gib heads.
As a further improvement on the present invention, described moving contact is provided with break slot, and described return unit blocks mutually with moving contact in break slot.
As a further improvement on the present invention, described moving contact is provided with the second fixture block, and the second described fixture block coordinates with lever is spacing.
As a further improvement on the present invention, block on described locating part, the top of described block is corresponding with the first fixture block, and the bottom of described block is corresponding with pushing block.
As a further improvement on the present invention, described locating part is arranged with reduction torsion spring outward, and the block on one end and the locating part of described reduction torsion spring offsets, and the other end and housing offset.
The invention has the beneficial effects as follows, set up locating part, and on moving contact, be provided with the first fixture block and on lever, set up pushing block, when the moving contact that makes breaker is soon closed, can lean on mechanical energy storage quick-make contact, make to become about the operation of manpower the operation of irrelevant manpower, avoid external force to operate the impact on contact closure speed. That the present invention also has is simple in structure, compact, rationally, dependable performance, be easy to realize, be easy to assembling, the advantage such as cost is low, and closing speed and breaking speed are faster.
Brief description of the drawings
The structural representation that accompanying drawing 1 is the embodiment of the present invention.
Accompanying drawing 2 is for lever 4 in accompanying drawing 1 and be located at the structural representation at moving contact 3 places on lever 4.
Accompanying drawing 3 is the structural representation of lever 4 in accompanying drawing 1.
Accompanying drawing 4 is the structural representation of moving contact 3 in accompanying drawing 1.
Accompanying drawing 5 is the structural representation of locating part 5 in accompanying drawing 1.
In figure, 1, housing; 2, static contact; 3, moving contact; 31, bearing pin; 32, return unit; 33, the first fixture block; 34, break slot; 35, the second fixture block; 4, lever; 41, pushing block; 42, gib head; 43, storage tank; 5, locating part; 51, block; 511, the top of block; 512, the bottom of block; 6, reduction torsion spring.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention is further illustrated:
By Fig. 1 in conjunction with shown in Fig. 2,3,4,5, a kind of miniature circuit breaker with contact fast closing mechanism, comprise housing 1, in described housing 1, be provided with static contact 2, moving contact 3 and lever 4, described moving contact 3 is articulated with on lever 4 by bearing pin 31, and described bearing pin 31 is provided with return unit 32, block mutually with moving contact 3 one end of described return unit 32, the other end blocks mutually with lever 4, and specifically, described return unit is torsion spring. described return unit 32 has the movement tendency that drives moving contact 3 to rotate around bearing pin 31, specifically, is that lever rotates the motion of drive torsion spring, and torsion spring drives moving contact to rotate around bearing pin. described lever 4 is provided with pushing block 41, described moving contact 3 is provided with the first fixture block 33, in described housing 1, be hinged with locating part 5, described locating part 5 has the primary importance of blocking mutually with moving contact 3 first fixture blocks 33 and the second place that is promoted to make locating part 5 and the first fixture block 33 de-card releases by pushing block 41, described return unit 32 has and lever 4, the first state that moving contact 3 links, when locating part 5 blocks mutually with the first fixture block 33, lever rotates the second state that makes return unit 32 energy storage, after locating part 5 and the releases of the de-card of the first fixture block 33, return unit 32 discharges mechanical energy and makes the third state of moving contact 3 quick-makes. in the time that operating mechanism closes a floodgate, between moving contact and static contact, there is certain interval, operating mechanism drives lever motion, and lever drives moving contact close to static contact by the torsion of return unit, and now, lever, return unit, moving contact are connected. the part that is reset of the first fixture block on moving contact drives and turns to when the first fixture block offsets position with locating part with lever that (now the first fixture block on locating part and moving contact blocks mutually, locating part is in primary importance, as shown in fig. 1), the moving contact stop motion of being obstructed, operating mechanism continues to the motion of combined floodgate direction, moving contact stop motion. now lever is because the drive of operating mechanism continues motion, and moving contact blocks stop motion mutually with locating part, lever compression return unit deposit mechanical energy. in the time that mechanism runs to certain position, pushing block on lever promotes locating part and rotates, in the time that moving contact the first fixture block is switched to the opposite side in the locating part center of circle to the force direction of locating part, locating part and the first fixture block dropout release (locating part is in the time of the second place), moving contact is quick and static contact closure under the effect of return unit deposit mechanical energy. the invention has the beneficial effects as follows, set up locating part, and on moving contact, be provided with the first fixture block and on lever, set up pushing block, when the moving contact that makes breaker is soon closed, can lean on mechanical energy storage quick-make contact, make to become about the operation of manpower the operation of irrelevant manpower, avoid external force to operate the impact on contact closure speed. that the present invention also has is simple in structure, compact, rationally, dependable performance, be easy to realize, be easy to assembling, the advantage such as cost is low, and closing speed and breaking speed are faster.
Described lever 4 is provided with gib head 42, and described bearing pin 31 is located on gib head 42. Specifically, described gib head 42 has two, is formed for the storage tank 43 of accommodating moving contact 3 between two described gib heads 42. Such structure is convenient to the installation of moving contact. In particular, described moving contact 3 is provided with break slot 34, and described return unit 32 blocks mutually with moving contact 3 in break slot 34. Such structure ensures that return unit can drive moving contact motion reliably, and simple in structure, easy for installation.
Described moving contact 3 is provided with the second fixture block 35, and the second described fixture block 35 coordinates with lever 4 is spacing. Such structure can ensure moving contact to carry out spacing, avoids the injury gained in sports parts excessively of moving contact.
Described locating part 5 is provided with block 51, and the top 511 of described block is corresponding with the first fixture block 33, and the bottom 512 of described block is corresponding with pushing block 41. Specifically, arranging of block reasonably utilized the space in housing, and makes product reliable in action. In particular, the sidepiece edge on the top of the first fixture block and block offsets, and pushing block is corresponding with the lower side of block. In particular, the described block top place offseting with the first fixture block is provided with arcwall face, is beneficial to the quick-make of moving contact. Described locating part 5 is outer is arranged with reduction torsion spring 6, and the block 51 on one end of described reduction torsion spring 6 and locating part 5 offsets, and the other end and housing 1 offset.
Every technical staff's notice: although the present invention describes according to above-mentioned detailed description of the invention, invention thought of the present invention is not limited in this invention, and the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (6)
1. one kind has the miniature circuit breaker of contact fast closing mechanism, comprise housing (1), in described housing (1), be provided with static contact (2), moving contact (3) and lever (4), described moving contact (3) is articulated with on lever (4) by bearing pin (31), it is characterized in that: described bearing pin (31) is provided with return unit (32), block mutually with moving contact (3) one end of described return unit (32), the other end blocks mutually with lever (4), described return unit (32) has the movement tendency of drive moving contact (3) around bearing pin (31) rotation, described lever (4) is provided with pushing block (41), described moving contact (3) is provided with the first fixture block (33), in described housing (1), be hinged with locating part (5), described locating part (5) has the primary importance of blocking mutually with moving contact (3) first fixture blocks (33) and promotes to make the de-second place of blocking release of locating part (5) and the first fixture block (33) by pushing block (41), described return unit (32) has and lever (4), the first state of moving contact (3) interlock, when locating part (5) blocks mutually with the first fixture block (33), lever rotates the second state that makes return unit (32) energy storage, after the release of the de-card of locating part (5) and the first fixture block (33), return unit (32) release mechanical energy makes the third state of moving contact (3) quick-make, described moving contact (3) is provided with the second fixture block (35), described the second fixture block (35) and spacing cooperation of lever (4).
2. a kind of miniature circuit breaker with contact fast closing mechanism according to claim 1, is characterized in that described lever (4) is provided with gib head (42), and described bearing pin (31) is located on gib head (42).
3. a kind of miniature circuit breaker with contact fast closing mechanism according to claim 2, is characterized in that described gib head (42) has two, is formed for the storage tank (43) of accommodating moving contact (3) between described two gib heads (42).
4. a kind of miniature circuit breaker with contact fast closing mechanism according to claim 1, is characterized in that described moving contact (3) is provided with break slot (34), and described return unit (32) blocks mutually with moving contact (3) in break slot (34).
5. a kind of miniature circuit breaker with contact fast closing mechanism according to claim 1, it is characterized in that described locating part (5) is provided with block (51), the top (511) of described block is corresponding with the first fixture block (33), and the bottom (512) of described block is corresponding with pushing block (41).
6. a kind of miniature circuit breaker with contact fast closing mechanism according to claim 5, it is characterized in that the outer reduction torsion spring (6) that is arranged with of described locating part (5), block (51) on one end of described reduction torsion spring (6) and locating part (5) offsets, and the other end and housing (1) offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372252.7A CN104201071B (en) | 2014-07-31 | 2014-07-31 | A kind of miniature circuit breaker with contact fast closing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410372252.7A CN104201071B (en) | 2014-07-31 | 2014-07-31 | A kind of miniature circuit breaker with contact fast closing mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN104201071A CN104201071A (en) | 2014-12-10 |
| CN104201071B true CN104201071B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410372252.7A Active CN104201071B (en) | 2014-07-31 | 2014-07-31 | A kind of miniature circuit breaker with contact fast closing mechanism |
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| CN (1) | CN104201071B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766769B (en) * | 2015-04-27 | 2017-06-16 | 苏州未来电器股份有限公司 | Circuit breaker tripping structure |
| CN106847630B (en) * | 2017-04-13 | 2020-05-22 | 厦门宏发开关设备有限公司 | Moving contact quick-closing mechanism and circuit breaker with same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4807135B2 (en) * | 2006-04-26 | 2011-11-02 | 富士電機機器制御株式会社 | Circuit breaker |
| ES2556255T3 (en) * | 2007-08-10 | 2016-01-14 | Ls Industrial Systems Co., Ltd | Molded case circuit breaker with contact mechanism |
| CN100561630C (en) * | 2007-11-27 | 2009-11-18 | Tcl低压电器(无锡)有限公司 | The fast closing mechanism of miniature circuit breaker |
| CN101656179B (en) * | 2008-08-21 | 2011-12-14 | 浙江正泰电器股份有限公司 | Co-directional serial double-break small circuit breaker |
| CN102881530B (en) * | 2012-08-28 | 2014-12-17 | 浙江天正电气股份有限公司 | Operating mechanism and miniature circuit breaker |
| CN204067281U (en) * | 2014-07-31 | 2014-12-31 | 浙江天正电气股份有限公司 | A kind of miniature circuit breaker with contact fast closing mechanism |
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- 2014-07-31 CN CN201410372252.7A patent/CN104201071B/en active Active
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| Publication number | Publication date |
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| CN104201071A (en) | 2014-12-10 |
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