CN103871791A - Shunt release for circuit breakers - Google Patents
Shunt release for circuit breakers Download PDFInfo
- Publication number
- CN103871791A CN103871791A CN201210537044.9A CN201210537044A CN103871791A CN 103871791 A CN103871791 A CN 103871791A CN 201210537044 A CN201210537044 A CN 201210537044A CN 103871791 A CN103871791 A CN 103871791A
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- iron core
- coil
- moving iron
- circuit breaker
- shunt release
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Abstract
The invention discloses a shunt release for circuit breakers. A coil in large size can be set on the shunt release to structurally optimize the shunt release. When the coil is powered, large attraction is generated between a fixed core and a moving core to provide large release force for a pull bar so as to enable releasing of the circuit breaker to be more reliable. The shunt release is simple and compact in structure, convenient to use and applicable to multiple types of circuit breakers.
Description
Technical field
the present invention relates to a kind of shunt release of circuit breaker.
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Background technology
the shunt release that is applicable to circuit breaker generally comprises base part and Electromagnetic Control part.In prior art, Electromagnetic Control part comprises coil, be arranged on static iron core in coil inner chamber, be arranged on the moving iron core in coil inner chamber, the draw bar of circuit breaker is connected with moving iron core by pull bar, coil obtains the moving relative static iron core of iron core of electric drive and is subjected to displacement, thereby pulls draw bar that circuit breaker is disconnected.In prior art, these shunt releases are due to the design feature of self, and its tripping force providing is often less, and circuit breaker can not be disconnected timely.
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Summary of the invention
the object of this invention is to provide a kind of shunt release of circuit breaker, the compact conformation of this release, can provide larger tripping force.
for achieving the above object, the technical solution used in the present invention is: a kind of shunt release of circuit breaker, described release comprises base part and Electromagnetic Control part, described base part comprises base, be arranged on the sensitive switch on described base, described Electromagnetic Control part comprises the yoke being fixedly installed on described base, be fixedly installed on the coil on coil rack, described coil is arranged in the inner chamber of described yoke, described Electromagnetic Control part also comprises the static iron core being fixedly installed in described coil inner chamber, slide axially and be arranged on the moving iron core in described coil inner chamber, described static iron core, between described moving iron core, be also provided with back-moving spring, two axial end portions of described back-moving spring respectively with described static iron core, described moving iron core is connected, one end of described yoke has opening, described opening part is provided with cover plate ordinatedly, on described cover plate, offer the through hole running through vertically, one end of described moving iron core slides axially and is located in described through hole, described moving iron core passes described through hole and is positioned at outward on the end outside described yoke inner chamber and is connected with pull bar, described pull bar is connected with the draw bar of described circuit breaker, described sensitive switch is connected in series mutually with described coil.
preferably, in the inner chamber of described coil, the axial line of described static iron core, the axial line of described moving iron core distribute along same rectilinear direction.
as a kind of concrete execution mode, on described static iron core, on the end relative with described moving iron core, described moving iron core, the end relative with described static iron core all offers the groove extending vertically, and two axial end portions of described back-moving spring are embedded respectively vertically in described groove.
preferably, on described moving iron core, there is an annular boss, described annular boss is arranged in the inner chamber of described coil on described moving iron core, and the diameter of described annular boss is greater than the aperture of described through hole, on described moving iron core, between described cover plate and described annular boss, is also arranged with copper sheet.
further preferably, be provided with regularly guide post on described cover plate, the axis parallel setting of the axial line of described guide post and described moving iron core, offers pilot hole on described pull bar, and described guide post slides axially and is located in described pilot hole.
preferably, be provided with regularly support on described base, described sensitive switch is arranged on described support.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: the shunt release of circuit breaker of the present invention, wherein be optimized by the structure to shunt release, the coil of larger volume can be set on this shunt release, coil can make the larger the suction-combining force of generation between static iron core and moving iron core in the time of energising, thereby provide the tripping force that pull bar is larger, the dropout reliability of circuit breaker is improved, this shunt release is simple and compact for structure, easy to use.
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Accompanying drawing explanation
the master that accompanying drawing 1 is release of the present invention looks sectional structure schematic diagram;
the plan structure schematic diagram that accompanying drawing 2 is release of the present invention.
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Embodiment
below in conjunction with accompanying drawing and specific embodiment, technical scheme of the present invention is further elaborated.
referring to the shunt release of a kind of circuit breaker shown in Fig. 1, Fig. 2, this release comprises base part 1 and Electromagnetic Control part 2, and base part 1 comprises base 11, sensitive switch 12, and sensitive switch 12 is arranged on base 11 by support 13.Electromagnetic Control part 2 comprises yoke 21, coil 22, static iron core 23, moving iron core 24, yoke 21 is fixedly installed on base 11, yoke 21 has an inner chamber, and coil 22 is fixedly installed on coil rack and is arranged in the inner chamber of yoke 21, and coil 22 is connected in series mutually with sensitive switch 12.Static iron core 23 is arranged in the inner chamber of coil 22 regularly, its one end can be fixed in yoke 21, moving iron core 24 slides axially and is arranged in the inner chamber of coil 22, the axial line of moving iron core 24, the axial line of static iron core 23 is along same lineal layout, moving iron core 24, between static iron core 23, be also provided with back-moving spring 25, two axial end portions of back-moving spring 25 respectively with static iron core 23, moving iron core 24 is connected, in the present embodiment, on static iron core 23, on the end relative with moving iron core, offer a groove, move on end relative with static iron core 23 on iron core 24 and also offer a groove, two axial end portions of back-moving spring 25 are embedded respectively vertically in above-mentioned groove, so when mounted more for convenience.
one end of yoke 21 has opening, this opening part is provided with cover plate 27 ordinatedly, cover plate 27 in the time that coil 22 is switched on and yoke 21 form work magnetic circuit, on cover plate 27, offer the through hole running through vertically, the other end of moving iron core 24 slides axially and is located in above-mentioned through hole.On moving iron core 24, be connected with pull bar 26, thereby pull bar 26 is for being connected with the draw bar (not shown) of circuit breaker the break-make of controlling circuit breaker.Pull bar 26 is connected on the end that moving iron core 24 passes cover plate 27 through holes and is positioned at outside the inner chamber of yoke 21.Here, can on passing the end of through hole on cover plate 27, moving iron core 24 offer a screwed hole, on pull bar 26, external screw thread is set, realize the installation of pull bar 26 by being connected of external screw thread and screwed hole, in the time that moving iron core 24 slides in chamber in coil vertically, pull bar 26 is thereupon and moves vertically.In the present embodiment, in order to carry out spacing to moving iron core 24 slippage vertically, on moving iron core 24, be also provided with an annular boss, this annular boss is arranged in the inner chamber of coil 22 on moving iron core 24, and the diameter of this annular boss should be set to be greater than the diameter of through hole on cover plate 27.Here, moving iron core 24 can be designed to multidiameter shape, and the diameter of the end relative with static iron core 23 is greater than the diameter of the end for pull bar 26 is installed, and on moving iron core 24, the larger end of diameter forms above-mentioned annular boss.On moving iron core 24, between annular boss and cover plate 27, be also arranged with copper sheet 29, like this can be to carrying out every magnetic between the annular boss on moving iron core 24 and cover plate 27, thus prevent between moving iron core 24 and static iron core 23, can not inhaling mutually after coil 22 energisings.In order to lead to pull bar 26, on cover plate 27, be also provided with regularly guide post 28, the axis parallel setting of the axial line of guide post 28 and moving iron core 24, offers pilot hole on pull bar 26, and guide post 28 slides axially and is located in pilot hole.
as shown in Figure 1, after shunt release of the present invention is disposed on circuit breaker, when circuit breaker is during in "on" position, sensitive switch 12 is connected, coil 22 electric, moving iron core 24 overcomes elastic acting force static iron core 23 slippages relatively vertically of back-moving spring 24, moving iron core 24 slippage vertically drives pull bar 26 to move, thereby pulls the draw bar of circuit breaker that it is threaded off, and at this moment sensitive switch 12 disconnects, coil 22 dead electricity, moving iron core 24 resets under the elastic acting force of back-moving spring 25.The coil 22 that volume is larger can be set on this shunt release, coil 22 can make the larger the suction-combining force of generation between static iron core 23 and moving iron core 24 in the time of energising, thereby provide the tripping force that pull bar 26 is larger, the dropout reliability of circuit breaker is improved, this shunt release is simple and compact for structure, easy to use.
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above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. the shunt release of a circuit breaker, described release comprises base part and Electromagnetic Control part, described base part comprises base, be arranged on the sensitive switch on described base, it is characterized in that: described Electromagnetic Control part comprises the yoke being fixedly installed on described base, be fixedly installed on the coil on coil rack, described coil is arranged in the inner chamber of described yoke, described Electromagnetic Control part also comprises the static iron core being fixedly installed in described coil inner chamber, slide axially and be arranged on the moving iron core in described coil inner chamber, described static iron core, between described moving iron core, be also provided with back-moving spring, two axial end portions of described back-moving spring respectively with described static iron core, described moving iron core is connected, one end of described yoke has opening, described opening part is provided with cover plate ordinatedly, on described cover plate, offer the through hole running through vertically, one end of described moving iron core slides axially and is located in described through hole, described moving iron core passes described through hole and is positioned at outward on the end outside described yoke inner chamber and is connected with pull bar, described pull bar is connected with the draw bar of described circuit breaker, described sensitive switch is connected in series mutually with described coil.
2. the shunt release of circuit breaker according to claim 1, is characterized in that: in the inner chamber of described coil, the axial line of described static iron core, the axial line of described moving iron core distribute along same rectilinear direction.
3. the shunt release of circuit breaker according to claim 1 and 2, it is characterized in that: on described static iron core, on the end relative with described moving iron core, described moving iron core, the end relative with described static iron core all offers the groove extending vertically, and two axial end portions of described back-moving spring are embedded respectively vertically in described groove.
4. the shunt release of circuit breaker according to claim 1, it is characterized in that: on described moving iron core, there is an annular boss, described annular boss is arranged in the inner chamber of described coil on described moving iron core, the diameter of described annular boss is greater than the aperture of described through hole, on described moving iron core, between described cover plate and described annular boss, is also arranged with copper sheet.
5. the shunt release of circuit breaker according to claim 4, it is characterized in that: on described cover plate, be provided with regularly guide post, the axis parallel setting of the axial line of described guide post and described moving iron core, on described pull bar, offer pilot hole, described guide post slides axially and is located in described pilot hole.
6. the shunt release of circuit breaker according to claim 1, is characterized in that: on described base, be provided with regularly support, described sensitive switch is arranged on described support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210537044.9A CN103871791A (en) | 2012-12-13 | 2012-12-13 | Shunt release for circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210537044.9A CN103871791A (en) | 2012-12-13 | 2012-12-13 | Shunt release for circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103871791A true CN103871791A (en) | 2014-06-18 |
Family
ID=50910212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210537044.9A Pending CN103871791A (en) | 2012-12-13 | 2012-12-13 | Shunt release for circuit breakers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103871791A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319204A (en) * | 2014-11-10 | 2015-01-28 | 德力西电气有限公司 | Closing preventing device for breaker |
| CN110085481A (en) * | 2019-04-24 | 2019-08-02 | 瑞声精密制造科技(常州)有限公司 | Electromagnetic switching device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1045416A2 (en) * | 1999-04-08 | 2000-10-18 | ABBPATENT GmbH | Electromagnetic trip device for an electrical circuit breaker |
| CN2510987Y (en) * | 2001-10-18 | 2002-09-11 | 严洪启 | Separate-exciting electrical apparatus release for circuit breaker |
| CN201780941U (en) * | 2010-07-28 | 2011-03-30 | 宁波奇乐电器科技有限公司 | Transmission mechanism of tripping device |
| CN202111023U (en) * | 2011-06-15 | 2012-01-11 | 常熟开关制造有限公司(原常熟开关厂） | Shunt release for breaker |
| CN202205672U (en) * | 2011-09-01 | 2012-04-25 | 常熟开关制造有限公司(原常熟开关厂） | Undervoltage releasing device for breaker |
| CN202977336U (en) * | 2012-12-13 | 2013-06-05 | 苏州景泰电气有限公司 | Shunt release for circuit breakers |
-
2012
- 2012-12-13 CN CN201210537044.9A patent/CN103871791A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1045416A2 (en) * | 1999-04-08 | 2000-10-18 | ABBPATENT GmbH | Electromagnetic trip device for an electrical circuit breaker |
| CN2510987Y (en) * | 2001-10-18 | 2002-09-11 | 严洪启 | Separate-exciting electrical apparatus release for circuit breaker |
| CN201780941U (en) * | 2010-07-28 | 2011-03-30 | 宁波奇乐电器科技有限公司 | Transmission mechanism of tripping device |
| CN202111023U (en) * | 2011-06-15 | 2012-01-11 | 常熟开关制造有限公司(原常熟开关厂） | Shunt release for breaker |
| CN202205672U (en) * | 2011-09-01 | 2012-04-25 | 常熟开关制造有限公司(原常熟开关厂） | Undervoltage releasing device for breaker |
| CN202977336U (en) * | 2012-12-13 | 2013-06-05 | 苏州景泰电气有限公司 | Shunt release for circuit breakers |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319204A (en) * | 2014-11-10 | 2015-01-28 | 德力西电气有限公司 | Closing preventing device for breaker |
| CN110085481A (en) * | 2019-04-24 | 2019-08-02 | 瑞声精密制造科技(常州)有限公司 | Electromagnetic switching device |
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Application publication date: 20140618 |