CN201829433U - Tripping device structure of circuit breaker - Google Patents
Tripping device structure of circuit breaker Download PDFInfo
- Publication number
- CN201829433U CN201829433U CN2010205732592U CN201020573259U CN201829433U CN 201829433 U CN201829433 U CN 201829433U CN 2010205732592 U CN2010205732592 U CN 2010205732592U CN 201020573259 U CN201020573259 U CN 201020573259U CN 201829433 U CN201829433 U CN 201829433U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- support
- bimetal leaf
- cavity
- 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 discloses a tripping device structure of a circuit breaker, comprising a bracket on which a cavity is formed, a static iron core is arranged in the cavity, a pin shaft is arranged above the cavity, the pin shaft is hinged with the bracket, one end of the pin shaft is provided with a torsion spring, the pin shaft is fixedly connected with the middle of a deflector rod, and one end of the deflector rod is opposite to the static iron core. With the tripping device structure of the circuit breaker, the original armature and crankarm piece are replaced by the deflector rod, and the static iron core and the deflector rod are connected into a whole by the bracket, so that the volume of the tripping device unit is reduced effectively, the tripping device structure is more compact and smarter, the installation is more convenient, and further the structure of the circuit breaker is more compact and attractive.
Description
Technical field
The utility model relates to a kind of assembly of circuit breaker, particularly a kind of tripper structure that uses on circuit breaker.
Background technology
Circuit breaker is as a kind of contactor, obtained using widely because of it can transship at circuit, carry out reliable protection under the short circuit, situation such as under-voltage.Circuit breaker generally comprises moving contact, fixed contact, operating mechanism and release.Break down in the ifs circuit, then release acts on locking mechanism with generation and makes moving contact and the rapid disjunction of fixed contact, and circuit is disconnected, thereby plays the protective effect to circuit.
Release generally comprises a plurality of trip units such as heat protection release unit, short-circuit release unit.Heat protection release unit mainly adopts bimetal leaf, and bimetal leaf heating power meeting flexural deformation will act on the locking mechanism after bending to a certain degree, and locking mechanism is thrown off circuitry cuts.The short-circuit release unit generally comprises fixed core and armature, armature is connected with connecting lever spare one end, the other end of connecting lever spare is connected with spring, the centre of connecting lever spare is hinged, the magnetic field force that produces when electric current on the fixed core is enough big can attract armature movement, and armature and then drive locking mechanism are thrown off to cut off circuit.
The volume of connecting lever spare is bigger in the above-mentioned short-circuit release unit, and be difficult for to install, all is being installed in the circuit breaker of comparatively disperseing generally, so just make the mechanism of circuit breaker be not very compact, volume is bigger, and process complex procedures, make production efficiency lower.
The utility model content
At above-mentioned the deficiencies in the prior art, the technical problems to be solved in the utility model provides a kind of simple in structure, the tripper structure that volume is little.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of tripper structure of circuit breaker, it comprises a support, form a cavity on the described support, be provided with static iron core in the described cavity, described cavity top is provided with a bearing pin, and described bearing pin and described support are hinged, and described bearing pin one end is provided with a torsion spring, described bearing pin is fixedlyed connected with the middle part of a driving lever, and an end of described driving lever is relative with described static iron core.
Preferably, it also comprises a bimetal leaf and a conductive plate, and described conductive plate is connected with described bimetal leaf, and described conductive plate is fixedlyed connected with described support.
Preferably, described conductive plate comprises a riser portion and a flat part, fixedlys connected with the lower end of described bimetal leaf in the lower end of described riser portion, and described flat part is fixedlyed connected with the bottom surface of support.
Preferably, the upper end of described bimetal leaf is free and be provided with ejector pin.
Technique scheme has following beneficial effect: the tripper structure of this circuit breaker becomes a driving lever with original armature, connecting lever spare, and static iron core and driving lever are connected as a single entity by support is set, so just can effectively reduce the volume of this release unit, make that the structure that changes release is more compact, small and exquisite, and more convenient when mounted, and then also can make the structure of circuit breaker more compact, attractive in appearance.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and conjunction with figs. describe in detail as after.Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the structure chart of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As Fig. 1, the tripper structure of this circuit breaker comprises a support 1, form a cavity 2 on the support, be provided with static iron core 3 in the cavity 2, the top of cavity 2 is provided with a bearing pin 4, bearing pin 4 is hinged with support 1, bearing pin 4 one ends are provided with torsion spring 5, and an end of torsion spring 5 acts on the support 1, and the other end acts on the bearing pin 4, bearing pin 4 is also fixedlyed connected with the middle part of a driving lever 6, and an end of driving lever 6 is relative with static iron core 3.
The tripper structure of this circuit breaker also comprises a bimetal leaf 8 and a conductive plate 7, and conductive plate 7 comprises a riser portion 72 and a flat part 71, fixedlys connected with the lower end of bimetal leaf 8 in the lower end of riser portion 72, and flat part 71 is fixedlyed connected with the bottom surface of support 1.The upper end of bimetal leaf 8 can be free movable, and the upper end of bimetal leaf 8 also is provided with an ejector pin 9.
When this tripper structure is packed circuit breaker into, circuit loop with conductive plate 7 and fixed core 3 access circuit breakers, when the general overload of circuit, can produce certain heat on the conductive plate 7, and with heat transferred bimetal leaf 8, because two sheet material of bimetal leaf 8 are different, bending will deform after bimetal leaf 8 is heated like this, and then ejector pin 9 actions of drive bimetal leaf 8 upper ends, and the locking mechanism that acts on the circuit breaker disconnects circuit breaker.
When the serious overload of electric current promptly is short-circuited, electric current on the fixed core 3 sharply becomes big at this moment, produce bigger magnetic field on the fixed core 3, driving lever 6 lower ends that attract its opposite are near static iron core 3, and will move round about in the upper end of driving lever 6, and the locking mechanism that acts on the circuit breaker disconnects circuit breaker.After circuit breaker disconnects, driving lever 6 will reset under the elastic force effect of torsion spring 5.
The tripper structure of this circuit breaker protects release unit and short-circuit protection release unit to be integrated into an integrative-structure heat; and original armature, connecting lever spare become a driving lever; by support is set static iron core and driving lever are connected as a single entity; so just can effectively reduce the volume of this release unit; make that the structure that changes release is more compact, small and exquisite; and more convenient when mounted, and then also can make the structure of circuit breaker more compact, attractive in appearance.
More than the tripper structure of a kind of circuit breaker that the utility model embodiment is provided be described in detail; for one of ordinary skill in the art; thought according to the utility model embodiment; part in specific embodiments and applications all can change; in sum; this description should not be construed as restriction of the present utility model, and all any changes of being made according to the utility model design philosophy are all within protection range of the present utility model.
Claims (4)
1. the tripper structure of a circuit breaker, it is characterized in that: it comprises a support, form a cavity on the described support, be provided with static iron core in the described cavity, described cavity top is provided with a bearing pin, and described bearing pin and described support are hinged, and described bearing pin one end is provided with a torsion spring, described bearing pin is fixedlyed connected with the middle part of a driving lever, and an end of described driving lever is relative with described static iron core.
2. the tripper structure of circuit breaker according to claim 1, it is characterized in that: it also comprises a bimetal leaf and a conductive plate, and described conductive plate is connected with described bimetal leaf, and described conductive plate is fixedlyed connected with described support.
3. the tripper structure of circuit breaker according to claim 2, it is characterized in that: described conductive plate comprises a riser portion and a flat part, fixedly connected with the lower end of described bimetal leaf in the lower end of described riser portion, described flat part is fixedlyed connected with the bottom surface of support.
4. the tripper structure of circuit breaker according to claim 2 is characterized in that: the free ejector pin that also is provided with in the upper end of described bimetal leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205732592U CN201829433U (en) | 2010-10-21 | 2010-10-21 | Tripping device structure of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205732592U CN201829433U (en) | 2010-10-21 | 2010-10-21 | Tripping device structure of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829433U true CN201829433U (en) | 2011-05-11 |
Family
ID=43967953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205732592U Expired - Lifetime CN201829433U (en) | 2010-10-21 | 2010-10-21 | Tripping device structure of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000460A (en) * | 2011-09-12 | 2013-03-27 | 三菱电机株式会社 | Over-current tripping device and circuit breaker |
-
2010
- 2010-10-21 CN CN2010205732592U patent/CN201829433U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000460A (en) * | 2011-09-12 | 2013-03-27 | 三菱电机株式会社 | Over-current tripping device and circuit breaker |
| CN103000460B (en) * | 2011-09-12 | 2015-08-19 | 三菱电机株式会社 | Over current trip and circuit-breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI YONGJI ELECTRICAL HOLDING CO., LTD. Free format text: FORMER NAME: SHANGHAI ROGY ELECTRICITY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201515 Shanghai, Jinshan District, South Road, No. 2239 Patentee after: SHANGHAI YONGJI ELECTRICAL HOLDING CO., LTD. Address before: 201515 Shanghai, Jinshan District, South Road, No. 2239 Patentee before: Shanghai Rogy Electricity Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |
|
| CX01 | Expiry of patent term |