CN201946532U - Plastic housing circuit breaker - Google Patents
Plastic housing circuit breaker Download PDFInfo
- Publication number
- CN201946532U CN201946532U CN 201120005919 CN201120005919U CN201946532U CN 201946532 U CN201946532 U CN 201946532U CN 201120005919 CN201120005919 CN 201120005919 CN 201120005919 U CN201120005919 U CN 201120005919U CN 201946532 U CN201946532 U CN 201946532U
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- CN
- China
- Prior art keywords
- armature
- draw bar
- knob
- adjusting rod
- breaker
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- 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 - Fee Related
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Abstract
The utility model relates to a circuit breaker, in particular to a plastic housing circuit breaker. The plastic housing circuit breaker has the improvement points that three horizontal strip-type holes are arranged on a traction rod at intervals; an regulation rod comprises a main body and three bosses arranged on the front side of the main body at intervals; an inclined plane is arranged at the front end of each boss; the width of each strip-type hole is larger than the width of each boss; the main body of the regulation rod is arranged at the rear part of the traction rod; the bosses penetrate through the strip-type holes to enable the inclined plane at the front end surface of each boss is opposite to a regulation screw on a bimetallic strip; the regulation rod is matched with the traction rod in a sliding way with the rotation of a first rotation button, and the upper end of an armature corresponds to the traction rod. The bimetallic strip acts on the regulation rod, and the armature directly acts on the traction rod, so that in case of short circuit, the armature can quickly act on the traction rod to cause a trip device to trip, thereby ensuring the action time of the trip device.
Description
Technical field
The utility model relates to a kind of circuit breaker, particularly a kind of breaker of plastic casing.
Background technology
Breaker of plastic casing has functions such as overload delay protection, short circuit instantaneous protection usually.The overload delay protection promptly is to make two gold plaque distortion by thermal conductance, when circuit breaker transships, thereby produces the overheated pair gold plaque flexural deformations that make, and realizes tripping thereby touch the draw bar rotation.Because the difference of circuit breaker environment for use and the needs of actual condition, the time of overload time-delay sometimes is need be adjustable, and this adjustable breaker tripping mechanism of band time-delay just occurs.This tripping mechanism normally is provided with band inclined-plane adjusting rod on draw bar, regulate the lateral attitude of adjusting rod by a knob, so also just regulated the distance between the adjustment screw on inclined-plane and the two gold plaque, promptly regulated the time of the time-delay of threading off, and in this structure, armature also is by acting on adjusting rod during instantaneous tripping, driving draw bar by adjusting rod threads off its rotation, owing to exist the gap between adjusting rod and the draw bar, life period is poor when therefore driving the draw bar rotation by adjusting rod, when this just caused line short, it was very not timely to thread off, and promptly has transient delay dropout phenomenon.Obviously this protection to circuit element is very disadvantageous.In addition, in the short circuit instantaneous trip mechanism of existing circuit breaker, realize the most more complicated of its structure of regulative mode of different operating currents, cause cost to improve or troublesome poeration.
Summary of the invention
Be the existing technical problem of delayed releasing and instantaneous trip mechanism that solves existing breaker of plastic casing, the utility model provides a kind of breaker of plastic casing that will conveniently regulate delayed releasing and not influence instantaneous trip.
For achieving the above object, the technical solution used in the present invention is: a kind of breaker of plastic casing, include housing, support, draw bar, the front end that links to each other with draw bar is provided with the adjusting rod on inclined-plane and first knob that matches with adjusting rod, which is provided with three groups of bimetal leafs and three groups of armature of adjustment screw, the cover plate that described first knob passes housing matches with adjusting rod, it is characterized in that: described draw bar is provided with three horizontal bar holes that are provided with at interval, described adjusting rod includes body and is disposed on three boss of body front side, described inclined-plane is located at the front end of boss, the width of described bar hole is longer than the width of described boss, the body of described adjusting rod is positioned at the rear of draw bar, described boss passes bar hole makes the inclined-plane of its front end face relative with the adjustment screw on the bimetal leaf, described adjusting rod cooperates with the draw bar slippage with the rotation of first knob, and the upper end of described armature is corresponding with draw bar.
Preferably: the upper and lower side of described boss is provided with overhead kick, and the front end face of this overhead kick and draw bar is clasped.
Preferably: there are three location pits the bottom surface of described cover plate along the axis circumference of first knob, and the corresponding positioning convex point that is provided with cooperates with described three location pits formation gears on described first knob.
Preferably: described armature the place ahead also is provided with a rotating shaft parallel with draw bar, described rotating shaft one end is rack-mount by axle, the other end links to each other with the armature of each group by extension spring and constitutes lever mated, between armature and rotating shaft, also be provided with second knob of the axis normal of axis and rotating shaft, second knob upper end is the adjustable side, the lower end is provided with eccentric polyhedron, and this polyhedron cooperates with the side roof pressure of described rotating shaft.
Preferably: described eccentric polyhedron is eccentric hexahedron.
Preferably: the side of described rotating shaft and eccentric polyhedron cooperation place are the ripple glaze face.
Preferably: described armature is the fork configuration that lower end disjunctor, upper end are provided with two legs, is provided with three highly different being used to and draws the hole that hangs extension spring on every leg.
The beneficial effects of the utility model are: because bimetal leaf is to act on the adjusting rod, and armature is to directly act on the draw bar, therefore when short circuit occurring, armature can directly act on draw bar apace threads off release, has guaranteed the operate time of release.
Description of drawings
Fig. 1 is the exploded view of the utility model embodiment.
Fig. 2 is the front view of the utility model embodiment.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the B-B cutaway view of Fig. 2.
Fig. 5 is the C-C cutaway view of Fig. 4.
Fig. 6 is the partial schematic diagram of the utility model embodiment.
Fig. 7 is the I place enlarged drawing among Fig. 6.
Fig. 8 is the exploded view of Fig. 6.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is done detailed explanation.
As Fig. 1-6, shown in 8, the embodiment of a kind of breaker of plastic casing of the utility model, include housing 1, support 2, draw bar 3, the front end that links to each other with draw bar 3 is provided with the adjusting rod 4 on inclined-plane 421 and first knob 5 that matches with adjusting rod 4, which is provided with three groups of bimetal leafs 6 and three groups of armature 7 of adjustment screw 61, the cover plate 11 that described first knob 5 passes housing 1 matches with adjusting rod 4, described draw bar 3 is provided with three horizontal bar holes 31 that are provided with at interval, described adjusting rod 4 includes body 41 and is disposed on three boss 42 of body front side, described inclined-plane 421 is located at the front end of boss 42, the width of described bar hole 31 is longer than the width of described boss 42, the body 41 of described adjusting rod 4 is positioned at the rear of draw bar 3, described boss 42 passes bar hole 31 makes the inclined-plane 421 of its front end face relative with the adjustment screw 61 on the bimetal leaf 6, described adjusting rod 4 cooperates with draw bar 3 slippages with the rotation of first knob 5, and the upper end of described armature 7 is corresponding with draw bar 3.When need regulating hot dropout delay time, only need rotation first knob 5, knob 5 is by the slippage and drive adjusting rod 4 lateral displacements in the chute 43 of adjusting rod 4 of its eccentric rod 51, so just can regulate the distance on 421 on adjustment screw 61 on the bimetal leaf 6 and inclined-plane, promptly regulate bimetal leaf and promoted the distance that release is threaded off, also just regulated the time of hot dropout.Short circuit phenomenon appears and work as, armature 7 adhesives, and armature 7 directly acts on draw bar 4 and makes its rotation, thereby realizes rapid-releasing.
In shown in Fig. 6,8, the upper and lower side of described boss 42 is provided with overhead kick 422, and this overhead kick 422 is clasped with the front end face 32 of draw bar 3.By establishing overhead kick 422, when adjusting rod 4 is installed, the bar hole 31 that only needs the boss 42 of adjusting rod 4 to be aimed at draw bar 3 firmly one pushes away, just boss 42 can be buckled in the bar hole 31, can can not separate along the horizontal slippage of bar hole after installing, mounting means by overhead kick can make the gap, front and back between adjusting rod and the draw bar accomplish minimum like this, thus reduce moment by adjusting rod to the time difference the draw bar, improve the accuracy of disjunction.
Shown in Fig. 6,7, there are three location pits (not looking out among the figure) bottom surface of described cover plate 11 along the axis circumference of first knob 5, and the corresponding positioning convex point 52 that is provided with cooperates with described three location pits formation gears on described first knob 5.By setting position salient point and location pit, can make first knob that the one accurate position of determining is arranged when rotated.
In the present embodiment, described armature 7 the place aheads also are provided with a rotating shaft 8 parallel with draw bar 3, described rotating shaft 8 one ends are installed on the support 2 by axle 81, the other end links to each other with the armature 7 of each group by extension spring 9 and constitutes lever mated, between armature 7 and rotating shaft 8, also be provided with second knob 10 of the axis normal of axis and rotating shaft 8, second knob, 10 upper ends are the adjustable side, and the lower end is provided with eccentric hexahedron 101, and this hexahedron 101 cooperates with the side roof pressure of described rotating shaft 8.And the side of rotating shaft 8 and eccentric hexahedron 101 cooperation places are the ripple glaze face.Adopt the ripple glaze face, can reduce rotating shaft frictional force when rotated, thereby realize second rotation rotation comparatively easily.Certainly the utility model is not got rid of the mode that adopts whole flat face.
In the utility model, described armature 7 is the fork configuration that lower end disjunctor, upper end are provided with two legs 71, is provided with three highly different being used to and draws the hole 711 that hangs extension spring 9 on every leg 71.
In use can select for use three groups of one legs in the armature 7 to link to each other with rotating shaft 8 with extension spring 9, at this moment be to realize 5-10 rated current dropout doubly, and if when on two legs, all hanging up extension spring 9, then be to realize 10-15 rated current dropout doubly, and if when realizing fine setting, when being the adjusting of the concrete multiple of 5-10 between doubly, only need rotation second knob 10, make the side of the not coplanar overhead rotating shaft of eccentric hexahedron 101, this just just realize spring tension adjusting (such as, when being in the extension spring that only hangs up a side and being doubly position of 5-10, at this moment when in the hexahedron during with nearest face in axle center and rotating shaft roof pressure, be to realize 5 times multiple, when during with the rotating shaft roof pressure, being the multiple of 6 times of realizations with time nearly face in axle center in the hexahedron, and the like, when with the axle center farthest face and during the rotating shaft roof pressure, realize 10 times multiple).
Be understandable that, more than the detailed description in conjunction with the accompanying drawings the utility model embodiment done only be in order to understand the utility model better, and be not to restriction of the present utility model.Any improvement, variation of doing based on connotation of the present utility model all naturally belongs within the protection range of the present utility model.
Claims (7)
1. breaker of plastic casing, include housing, support, draw bar, the front end that links to each other with draw bar is provided with the adjusting rod on inclined-plane and first knob that matches with adjusting rod, which is provided with three groups of bimetal leafs and three groups of armature of adjustment screw, the cover plate that described first knob passes housing matches with adjusting rod, it is characterized in that: described draw bar is provided with three horizontal bar holes that are provided with at interval, described adjusting rod includes body and is disposed on three boss of body front side, described inclined-plane is located at the front end of boss, the width of described bar hole is longer than the width of described boss, the body of described adjusting rod is positioned at the rear of draw bar, described boss passes bar hole makes the inclined-plane of its front end face relative with the adjustment screw on the bimetal leaf, described adjusting rod cooperates with the draw bar slippage with the rotation of first knob, and the upper end of described armature is corresponding with draw bar.
2. breaker of plastic casing according to claim 1 is characterized in that: the upper and lower side of described boss is provided with overhead kick, and the front end face of this overhead kick and draw bar is clasped.
3. breaker of plastic casing according to claim 1, it is characterized in that: there are three location pits the bottom surface of described cover plate along the axis circumference of first knob, and the corresponding positioning convex point that is provided with cooperates with described three location pits formation gears on described first knob.
4. breaker of plastic casing according to claim 1, it is characterized in that: described armature the place ahead also is provided with a rotating shaft parallel with draw bar, described rotating shaft one end is rack-mount by axle, the other end links to each other with the armature of each group by extension spring and constitutes lever mated, between armature and rotating shaft, also be provided with second knob of the axis normal of axis and rotating shaft, second knob upper end is the adjustable side, and the lower end is provided with eccentric polyhedron, and this polyhedron cooperates with the side roof pressure of described rotating shaft.
5. breaker of plastic casing according to claim 4 is characterized in that: described eccentric polyhedron is eccentric hexahedron.
6. breaker of plastic casing according to claim 4 is characterized in that: the side of described rotating shaft and eccentric polyhedron cooperation place are the ripple glaze face.
7. breaker of plastic casing according to claim 4 is characterized in that: described armature is the fork configuration that lower end disjunctor, upper end are provided with two legs, is provided with three highly different being used to and draws the hole that hangs extension spring on every leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120005919 CN201946532U (en) | 2011-01-10 | 2011-01-10 | Plastic housing circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120005919 CN201946532U (en) | 2011-01-10 | 2011-01-10 | Plastic housing circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201946532U true CN201946532U (en) | 2011-08-24 |
Family
ID=44473868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120005919 Expired - Fee Related CN201946532U (en) | 2011-01-10 | 2011-01-10 | Plastic housing circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201946532U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143491A (en) * | 2014-07-25 | 2014-11-12 | 正泰集团股份有限公司 | Delay-adjustable breaker |
| CN104143491B (en) * | 2014-07-25 | 2017-01-04 | 正泰集团股份有限公司 | A kind of time delay adjustable circuit breaker |
| CN107104026A (en) * | 2016-02-22 | 2017-08-29 | Ls 产电株式会社 | Instantaneous trip mechanism for molded case circuit breakers |
| WO2017181989A1 (en) * | 2016-04-21 | 2017-10-26 | 首瑞（天津）电气设备有限公司 | Device for adjusting lost motion of releaser |
| CN107582145A (en) * | 2017-02-04 | 2018-01-16 | 芜湖商环科技有限公司 | A kind of built-in Foreskin loop cutter positioner |
| CN110791420A (en) * | 2019-12-06 | 2020-02-14 | 中国科学院青岛生物能源与过程研究所 | Microalgae harvesting device with adjustable inclined plane |
-
2011
- 2011-01-10 CN CN 201120005919 patent/CN201946532U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143491A (en) * | 2014-07-25 | 2014-11-12 | 正泰集团股份有限公司 | Delay-adjustable breaker |
| CN104143491B (en) * | 2014-07-25 | 2017-01-04 | 正泰集团股份有限公司 | A kind of time delay adjustable circuit breaker |
| CN107104026A (en) * | 2016-02-22 | 2017-08-29 | Ls 产电株式会社 | Instantaneous trip mechanism for molded case circuit breakers |
| CN107104026B (en) * | 2016-02-22 | 2019-03-22 | Ls 产电株式会社 | Instantaneous trip mechanism for molded case circuit breakers |
| WO2017181989A1 (en) * | 2016-04-21 | 2017-10-26 | 首瑞（天津）电气设备有限公司 | Device for adjusting lost motion of releaser |
| CN107582145A (en) * | 2017-02-04 | 2018-01-16 | 芜湖商环科技有限公司 | A kind of built-in Foreskin loop cutter positioner |
| CN107582145B (en) * | 2017-02-04 | 2023-12-15 | 芜湖圣大医疗器械技术股份有限公司 | Built-in circumcision ware positioner |
| CN110791420A (en) * | 2019-12-06 | 2020-02-14 | 中国科学院青岛生物能源与过程研究所 | Microalgae harvesting device with adjustable inclined plane |
| CN110791420B (en) * | 2019-12-06 | 2023-11-24 | 青岛中科蓝智生物科技发展有限公司 | Microalgae harvesting device with adjustable inclined plane |
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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: 20110824 Termination date: 20150110 |
|
| EXPY | Termination of patent right or utility model |