CN204155885U - Breaker of plastic casing - Google Patents
Breaker of plastic casing Download PDFInfo
- Publication number
- CN204155885U CN204155885U CN201420666688.2U CN201420666688U CN204155885U CN 204155885 U CN204155885 U CN 204155885U CN 201420666688 U CN201420666688 U CN 201420666688U CN 204155885 U CN204155885 U CN 204155885U
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- China
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- armature
- cover cap
- controllable register
- instantaneous
- draw bar
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Abstract
The utility model relates to a kind of breaker of plastic casing, comprise plastic casing, operating mechanism, instantaneous trip mechanism, this instantaneous trip mechanism comprises pedestal, cover cap, three armature brackets, three armature, three iron cores, extension spring is provided with between three armature brackets and each armature, on pedestal, the side place of corresponding three armature rotates and is provided with draw bar, cover cap is sleeved on the pedestal at corresponding draw bar place, draw bar is provided with three pressing plates on the side of three armature, one end of three pressing plates is conflicted respectively on the upper surface of corresponding armature, draw bar is provided with controllable register on the side of cover cap, on cover cap, corresponding controllable register place rotates and is provided with instantaneous adjusting knob, instantaneous adjusting knob is provided with cam near one end of controllable register, conflict on described cam in one end of controllable register, instantaneous adjusting knob can insert slot for handle away from one end of controllable register is provided with.The utility model has that structure is simple, highly sensitive advantage of threading off.
Description
Technical field
The utility model relates to a kind of circuit breaker, is specifically related to a kind of breaker of plastic casing.
Background technology
In low voltage power distribution network, the instantaneous protection of breaker of plastic casing is considerable, and the quality of its performance, the height of action sensitivity are the keys of whole using electricity system safe operation, and the parts realizing this defencive function are exactly instantaneous release.Along with the development of electric utility; the demand of breaker of plastic casing increases day by day; also more and more higher to the performance requirement of institute's case circuit breaker; and from the angle of market to the short-circuit protection demand of breaker of plastic casing, user needs to adjust required short-circuit protection operating current setting value according to the actual demand at scene.But the tripping mechanism of existing breaker of plastic casing can not arbitrarily regulate dropout restraint according to the size of short circuit current, thus limits the protection range of breaker of plastic casing.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provide a kind of structure simple, thread off highly sensitive and can according to the breaker of plastic casing of the size step-less adjustment dropout restraint of short circuit current.
For achieving the above object, the utility model adopts a kind of breaker of plastic casing, comprise plastic casing, operating mechanism, instantaneous trip mechanism, described instantaneous trip mechanism comprises pedestal, cover cap, be disposed side by side on three armature brackets on pedestal, rotate three armature be arranged on each armature bracket, corresponding each armature lower end is arranged on three iron cores on pedestal, extension spring is provided with between three described armature brackets and each armature, on described pedestal, the side place of corresponding three armature rotates and is provided with draw bar, described cover cap is sleeved on the pedestal at corresponding draw bar place, and described draw bar is provided with three pressing plates on the side of three armature, one end of three described pressing plates is conflicted respectively on the upper surface of corresponding armature, described draw bar is provided with controllable register on the side of cover cap, on described cover cap, corresponding controllable register place rotates and is provided with instantaneous adjusting knob, described instantaneous adjusting knob is provided with cam near one end of controllable register, conflict on described cam in one end of described controllable register, described instantaneous adjusting knob can insert in cross slot for handle away from one end of controllable register is provided with.
The beneficial effect of said structure is: this breaker of plastic casing has that structure is simple, highly sensitive advantage of threading off.When operating instantaneous trip mechanism, handle is inserted in slot, rotate clockwise handle, handle drives the cam of instantaneous adjusting knob one end to rotate, the upwards action of cam driven controllable register, controllable register drives draw bar to rotate, draw bar drives three downward actions of pressing plate simultaneously, thus three pressing plates promote each armature stretching extension spring and action downwards respectively, thus reduce three distances between armature and iron core, when rotating counterclockwise handle, thus handle drives the rotation of instantaneous adjusting knob to rotate counterclockwise, instantaneous adjusting knob drives draw bar to rotate, draw bar drives three pressing plate upwards actions, drive three armature upwards actions are shunk in extension spring, thus pulled open three distances between armature and iron core, this instantaneous trip mechanism is by the distance between adjustment armature and iron core, thus user can according to the size step-less adjustment release restraint of short circuit current, thus reach the object of adjustment instantaneous trip value.
Especially, described instantaneous adjusting knob is installed in the U-shaped clip slot of the clamping plate on cover cap, and these clamping plate are provided with installing hole, is provided with the screw be fastenedly connected with cover cap in described installing hole.By the instantaneous adjusting knob which is installed, thus be convenient to the Assembly And Disassembly of staff, improve the operating efficiency of staff.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model instantaneous trip mechanism.
Fig. 2 is the stereogram after the utility model instantaneous trip mechanism removes cover cap.
Fig. 3 is the assembling schematic diagram of the utility model cover cap and instantaneous adjusting knob.
Fig. 4 is the stereogram of the utility model clamping plate.
Embodiment
As Fig. 1, 2, 3, shown in 4, the utility model embodiment is a kind of breaker of plastic casing, comprise plastic casing, operating mechanism, instantaneous trip mechanism, described instantaneous trip mechanism comprises pedestal 10, cover cap 11, be disposed side by side on three armature brackets 12 on pedestal 10, rotate three armature 13 be arranged on each armature bracket 12, corresponding each armature 13 lower end is arranged on three iron cores on pedestal 10, extension spring 17 is provided with between three described armature brackets 12 and each armature 13, on described pedestal 10, the side place of corresponding three armature 13 rotates and is provided with draw bar 14, described cover cap 11 is sleeved on the pedestal 10 at corresponding draw bar 14 place, and described draw bar 14 is provided with three pressing plates 141 on the side of three armature 13, one end of three described pressing plates 141 is conflicted respectively on the upper surface of corresponding armature 13, described draw bar 14 is provided with controllable register 142 on the side of cover cap 11, on described cover cap 11, corresponding controllable register 142 place rotates and is provided with instantaneous adjusting knob 15, described instantaneous adjusting knob 15 is provided with cam 151 near one end of controllable register 142, conflict on described cam 151 in one end of described controllable register 142, described instantaneous adjusting knob 15 one end away from controllable register 142 is provided with and can inserts in cross slot 152 for handle.Described instantaneous adjusting knob 15 is installed in the U-shaped clip slot 161 of the clamping plate 16 on cover cap 11, as shown in Figure 4, clamping plate 16 is provided with installing hole 162, is provided with the screw be fastenedly connected with cover cap 11 in described installing hole 162.By the instantaneous adjusting knob which is installed, thus be convenient to the Assembly And Disassembly of staff, namely improve the operating efficiency of staff.
This breaker of plastic casing has that structure is simple, highly sensitive advantage of threading off.When operating instantaneous trip mechanism, handle is inserted in slot, rotate clockwise handle, handle drives the cam of instantaneous adjusting knob one end to rotate, the upwards action of cam driven controllable register, controllable register drives draw bar to rotate, draw bar drives three downward actions of pressing plate simultaneously, thus three pressing plates promote each armature stretching extension spring and action downwards respectively, thus reduce three distances between armature and iron core, when rotating counterclockwise handle, thus handle drives the rotation of instantaneous adjusting knob to rotate counterclockwise, instantaneous adjusting knob drives draw bar to rotate, draw bar drives three pressing plate upwards actions, drive three armature upwards actions are shunk in extension spring, thus pulled open three distances between armature and iron core, this instantaneous trip mechanism is by the distance between adjustment armature and iron core, thus user can according to the size step-less adjustment release restraint of short circuit current, thus reach the object of adjustment instantaneous trip value.
Claims (2)
1. a breaker of plastic casing, comprise plastic casing, operating mechanism, instantaneous trip mechanism, described instantaneous trip mechanism comprises pedestal, cover cap, be disposed side by side on three armature brackets on pedestal, rotate three armature be arranged on each armature bracket, corresponding each armature lower end is arranged on three iron cores on pedestal, extension spring is provided with between three described armature brackets and each armature, it is characterized in that: on described pedestal, the side place of corresponding three armature rotates and is provided with draw bar, described cover cap is sleeved on the pedestal at corresponding draw bar place, and described draw bar is provided with three pressing plates on the side of three armature, one end of three described pressing plates is conflicted respectively on the upper surface of corresponding armature, described draw bar is provided with controllable register on the side of cover cap, on described cover cap, corresponding controllable register place rotates and is provided with instantaneous adjusting knob, described instantaneous adjusting knob is provided with cam near one end of controllable register, conflict on described cam in one end of described controllable register, described instantaneous adjusting knob can insert in cross slot for handle away from one end of controllable register is provided with.
2. breaker of plastic casing according to claim 1, is characterized in that, described instantaneous adjusting knob is installed in the U-shaped clip slot of the clamping plate on cover cap, and these clamping plate are provided with installing hole, is provided with the screw be fastenedly connected with cover cap in described installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666688.2U CN204155885U (en) | 2014-11-01 | 2014-11-01 | Breaker of plastic casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666688.2U CN204155885U (en) | 2014-11-01 | 2014-11-01 | Breaker of plastic casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204155885U true CN204155885U (en) | 2015-02-11 |
Family
ID=52513982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420666688.2U Active CN204155885U (en) | 2014-11-01 | 2014-11-01 | Breaker of plastic casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204155885U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017206426A1 (en) * | 2016-06-02 | 2017-12-07 | 浙江正泰电器股份有限公司 | Electromagnetic device for molded case circuit breaker |
| CN108257832A (en) * | 2018-04-02 | 2018-07-06 | 浙江智美电气有限公司 | A kind of adjustable small-sized heavy current breaker of drop-away current |
-
2014
- 2014-11-01 CN CN201420666688.2U patent/CN204155885U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017206426A1 (en) * | 2016-06-02 | 2017-12-07 | 浙江正泰电器股份有限公司 | Electromagnetic device for molded case circuit breaker |
| CN108257832A (en) * | 2018-04-02 | 2018-07-06 | 浙江智美电气有限公司 | A kind of adjustable small-sized heavy current breaker of drop-away current |
| CN108257832B (en) * | 2018-04-02 | 2019-06-07 | 浙江智美电气有限公司 | A kind of adjustable small-sized heavy current breaker of drop-away current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |