CN204966430U - Circuit breaker tripped mechanism - Google Patents
Circuit breaker tripped mechanism Download PDFInfo
- Publication number
- CN204966430U CN204966430U CN201520592116.9U CN201520592116U CN204966430U CN 204966430 U CN204966430 U CN 204966430U CN 201520592116 U CN201520592116 U CN 201520592116U CN 204966430 U CN204966430 U CN 204966430U
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- contact
- circuit breaker
- moving contact
- lever
- utility
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Abstract
The utility model provides a circuit breaker tripped mechanism, it includes moving contact (1), moving contact (1) is adorned in pivot (2), movable contact (101), its characterized in that are equipped with in the one end that moving contact (1) and static contact (3) correspond: static contact (3) go up that the position that corresponds with movable contact (101) is equipped with can be rather than fixed contact (4) of coupling / disconnection, and moving contact (1) other end is connected with lever mechanism (5), and the unblock of lever mechanism (5) messenger operating device (6) dropout semi -axis (601) can be stirred at the in -process of movable contact (101) and fixed contact (4) coupling / disconnection in moving contact (1). The utility model discloses an add that the lever mechanism is supplementary to be divided absolutely, at the contact because electronic repulsion after -separating can accurate quick unblock circuit breaker operating device, it can improve circuit breaker operating device's the disconnected speed of branch, avoids the actuation once more of sound contact to cause the circuit breaker to damage.
Description
Technical field
The utility model belongs to breaker apparatus technical field, specifically just relates to a kind of circuit breaker trip mechanism, effectively can shorten the operate time of circuit breaker, improves the interrupting performance of circuit breaker.
Background technology
Circuit breaker is divided into primary cut-out and low-voltage circuit breaker by its scope of application, and low-voltage circuit breaker is a kind of existing hand switch effect, automatically can carry out again decompression, under-voltage, overload and the electrical equipment of short-circuit protection.It can be used to distribute electric energy, infrequently starts asynchronous motor, carries out protection to power circuit and motor etc., can automatic shutdown circuit when serious overload or short circuit and the fault such as under-voltage occur for they.
Circuit breaker is generally made up of contact system, arc quenching system, operating mechanism, release, shell etc., existing low-voltage circuit breaker, especially there is the circuit breaker of current-limiting function when producing short circuit, its dynamic and static contact will separate and produce electric arc under the effect of electrodynamic repulsion force within the extremely short time, along with the increase of distance of separation between dynamic and static contact, electrodynamic repulsion force declines rapidly, and when electrodynamic repulsion force is less than touch spring reaction force, dynamic and static contact starts close.This kind, near being commonly called as " falling of contact ", can be caused harmful effect to circuit breaker.Such as: extend break-time, cause restriking of electric arc in arc control device, serious meeting scaling loss circuit breaker, thus have influence on the breaking capacity of circuit breaker.Existing solution in low capacity circuit breaker, arranges electromagnet action carry out quick release circuit breaker operation mechanism, circuit breaker operation mechanism quick acting is made when short circuit, dynamic and static contact is separated, thus avoids the contact of scolding out and again occur " falling of contact " phenomenon.But due to the restriction in space in large capcity breaker, the size of electromagnet is restricted, and electromagnet is very easily saturated, thus affects the responsiveness of circuit breaker operation mechanism, the contact of scolding out is caused again to occur " falling of contact " phenomenon.
Utility model content
The purpose of this utility model " falling of contact " phenomenon easily occurs for existing large capcity breaker when circuit breaker, a kind of circuit breaker trip mechanism of the accurate quick release circuit breaker operation mechanism of energy after contact is due to electrodynamic repulsion force separation is provided, it can improve the breaking speed of circuit breaker operation mechanism, avoids the adhesive again of dynamic/static contact to cause circuit breaker to damage.
Technical scheme
In order to realize above-mentioned technical purpose, a kind of circuit breaker trip mechanism of the utility model design, it comprises moving contact, moving contact is contained in rotating shaft, moving contact is equipped with in one end that described moving contact is corresponding with fixed contact, it is characterized in that: position corresponding with moving contact on fixed contact is provided with the fixed contact that can be coupled with it/disconnect, the moving contact other end is connected with leverage, can operating mechanism dropout semiaxis be unlocked shifting lever mechanism in the process that moving contact is coupled with fixed contact/disconnects at moving contact.
Further, described moving contact is arranged in rotating shaft by contact axle and also can rotates around contact axle.
Further, described leverage comprises lever, lever shaft and reduction torsion spring, and lever is contained on lever shaft and can rotates around lever shaft, lever shaft is contained in rotating shaft, reduction torsion spring is contained on lever shaft and props up lever, and lever one end is connected with moving contact, and the other end is connected with operating mechanism dropout semiaxis.
Beneficial effect
The utility model provides a kind of circuit breaker trip mechanism, disjunction is assisted by setting up leverage, energy accurately quick release circuit breaker operation mechanism after contact is due to electrodynamic repulsion force separation, it can improve the breaking speed of circuit breaker operation mechanism, avoids the adhesive again of dynamic/static contact to cause circuit breaker to damage.
Accompanying drawing explanation
Accompanying drawing 1 is dynamic/static contact couple state structural representation of the present utility model.
Accompanying drawing 2 is dynamic/static contact off-state structural representations of the present utility model.
Accompanying drawing 3 is leverage motion principle structural representations in the utility model.
Accompanying drawing 4 is leverage structural representations in the utility model.
Accompanying drawing 5 is leverage mounting structure schematic diagrames in the utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
Embodiment
As shown in figure 1 and 2, a kind of circuit breaker trip mechanism, it comprises moving contact 1, moving contact 1 is contained in rotating shaft 2, moving contact 101 is equipped with in one end that described moving contact 1 is corresponding with fixed contact 3, it is characterized in that: position corresponding with moving contact 101 on fixed contact 3 is provided with the fixed contact 4 that can be coupled with it/disconnect, moving contact 1 other end is connected with leverage 5, can operating mechanism 6 semiaxis 601 of threading off be unlocked shifting lever mechanism 5 in the process that moving contact 1 is coupled with fixed contact 4/disconnects at moving contact 101.
Described moving contact 1 is arranged in rotating shaft 2 by contact axle 7 and also can rotates around contact axle 7.
As shown in accompanying drawing 3 ~ 5, described leverage 5 comprises lever 501, lever shaft 502 and reduction torsion spring 503, lever 501 is contained on lever shaft 502 and can rotates around lever shaft 502, lever shaft 502 is contained in rotating shaft 2, reduction torsion spring 503 is contained on lever shaft 502 and props up lever 501, lever 501 one end is connected with moving contact 1, and the other end and operating mechanism 6 semiaxis 601 of threading off is connected.
The course of work of the present utility model is when any a slice moving contact 1 is owing to all can rotate by shifting lever 501 when electrodynamic repulsion force and fixed contact 4 disconnect, lever 501 is stirred operating mechanism 6 semiaxis 601 of threading off and is rotated, operating mechanism 6 is unlocked, thus drives moving contact 1 to be separated until circuit breaker is in trip position further.The utility model provides a kind of circuit breaker trip mechanism, disjunction is assisted by setting up leverage, energy accurately quick release circuit breaker operation mechanism after contact is due to electrodynamic repulsion force separation, it can improve the breaking speed of circuit breaker operation mechanism, avoids the adhesive again of dynamic/static contact to cause circuit breaker to damage.
Structure, ratio, size etc. that the present embodiment institute accompanying drawings illustrates, content all only in order to coordinate specification to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, still all should drop on technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, "left", "right", " centre ", " clockwise ", " counterclockwise " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
Claims (3)
1. a circuit breaker trip mechanism, it comprises moving contact (1), moving contact (1) is contained in rotating shaft (2), moving contact (101) is equipped with in one end that described moving contact (1) is corresponding with fixed contact (3), it is characterized in that: the upper position corresponding with moving contact (101) of fixed contact (3) is provided with the fixed contact (4) that can be coupled with it/disconnect, moving contact (1) other end is connected with leverage (5), can operating mechanism (6) dropout semiaxis (601) be unlocked shifting lever mechanism (5) in the process that moving contact (1) is coupled/disconnects in moving contact (101) and fixed contact (4).
2. a kind of circuit breaker trip mechanism as claimed in claim 1, is characterized in that: described moving contact (1) is arranged on rotating shaft (2) by contact axle (7) and above also can rotates around contact axle (7).
3. a kind of circuit breaker trip mechanism as claimed in claim 1, it is characterized in that: described leverage (5) comprises lever (501), lever shaft (502) and reduction torsion spring (503), lever (501) is contained on lever shaft (502) and can rotates around lever shaft (502), lever shaft (502) is contained in rotating shaft (2), reduction torsion spring (503) is contained on lever shaft (502) and props up lever (501), lever (501) one end is connected with moving contact (1), the other end is connected with operating mechanism (6) dropout semiaxis (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520592116.9U CN204966430U (en) | 2015-08-03 | 2015-08-03 | Circuit breaker tripped mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520592116.9U CN204966430U (en) | 2015-08-03 | 2015-08-03 | Circuit breaker tripped mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966430U true CN204966430U (en) | 2016-01-13 |
Family
ID=55061478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520592116.9U Active CN204966430U (en) | 2015-08-03 | 2015-08-03 | Circuit breaker tripped mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204966430U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409627A (en) * | 2015-08-03 | 2017-02-15 | 上海良信电器股份有限公司 | Circuit breaker tripping mechanism |
| CN109841459A (en) * | 2019-02-20 | 2019-06-04 | 贵州泰永长征技术股份有限公司 | A kind of moving contact reprimand changes up fast tripgear |
-
2015
- 2015-08-03 CN CN201520592116.9U patent/CN204966430U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409627A (en) * | 2015-08-03 | 2017-02-15 | 上海良信电器股份有限公司 | Circuit breaker tripping mechanism |
| CN109841459A (en) * | 2019-02-20 | 2019-06-04 | 贵州泰永长征技术股份有限公司 | A kind of moving contact reprimand changes up fast tripgear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |