CN201417726Y - Shunt tripping device used for circuit breaker - Google Patents
Shunt tripping device used for circuit breaker Download PDFInfo
- Publication number
- CN201417726Y CN201417726Y CN2009200467672U CN200920046767U CN201417726Y CN 201417726 Y CN201417726 Y CN 201417726Y CN 2009200467672 U CN2009200467672 U CN 2009200467672U CN 200920046767 U CN200920046767 U CN 200920046767U CN 201417726 Y CN201417726 Y CN 201417726Y
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- Prior art keywords
- iron core
- circuit breaker
- draw bar
- bar
- pedestal
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- Expired - Lifetime
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Abstract
The utility model discloses a shunt tripping device used for a circuit breaker, belonging to electromagnetic tripping parts. The shunt tripping device comprises an electromagnetic mechanism, an energystorage mechanism and a base, wherein the electromagnetic mechanism comprises a coil, a movable iron core, a static iron core and a spring; the energy storage mechanism comprises a lock catch, an amplified draw bar, an energy storage spring and a striking bar; the movable iron core is arranged above the static iron core; both ends of the spring are respectively in contact with the movable iron core and the static iron core; one end of the lock catch is provided with a lock hook, and the other end is provided with a driving rod; a lock hook hole is arranged on the amplified draw bar; one end of the lock catch realizes the connection with the amplified draw bar through the matching of the lock hook and the look hook hole; and the other end of the lock catch is connected with the movable iron core. The shunt tripping device used for the circuit breaker has the advantages of simple and compact structure, small size, effective amplifying for the electromagnetic force, reliable operation, good action stability and low failure rate.
Description
Technical field
The utility model relates to a kind of electromagnetic trip parts, and particularly a kind of circuit breaker shunt trip is to the improvement of existing circuit breaker with the shunt trip structure.
Background technology
Shunt trip in the prior art comprises: an electromagnetic mechanism and a stored energy mechanism.Described electromagnetic mechanism comprises: a coil, this coil are installed in a centre to have on the skeleton of vestibule; A static iron core and a moving iron core are installed in respectively in the vestibule of described skeleton, and static iron core is positioned at the top of moving iron core, axially disconnected from each other, are formed with the air gap between dynamic and static iron core between the two; One first spring can push described moving iron core to moving away from the static iron core direction; A push rod directly is connected with moving iron core and passes described static iron core.Described stored energy mechanism (claiming the secondary enlarger again) comprising: a locker that has drive part; The strike bar that can drive the circuit breaker tripping is equipped with torsion spring in the locker rotating shaft snap close piece is resetted, and the snap close end of described snap close piece is set to a hook-type, with the end face coupling of hitting bar; One second spring can apply power to hitting bar, makes it resist locker.Push rod on the described moving iron core has a drive end in the outer end, this drive end separates with the drive part of locker.In said structure, by on the dynamic and static iron core of electromagnet, boring a hole, make the push rod that links with moving iron core can pass static iron core, the strike snap close piece is threaded off, also will hold push rod except holding the stage clip in the centre bore of static iron core, therefore in order to satisfy manufacturing process, the diameter in hole is bigger, the overall dimensions of shunt release is increased, can't satisfy the miniaturization development trend of breaker of plastic casing.
Summary of the invention
Task of the present utility model is that a kind of compact conformation will be provided, and volume is little, and the big circuit breaker shunt trip of tripping force.
Task of the present utility model is finished like this, a kind of circuit breaker shunt trip, comprise electromagnetic mechanism, stored energy mechanism and pedestal 3, described electromagnetic mechanism comprises coil 13, moving iron core 11, static iron core 12 and spring 14, coil 13 is arranged on the pedestal 3, dynamic and static iron core 11,12 places the inner chamber of coil 13 respectively, and spring 14 is arranged in the inner chamber of static iron core 12; Described stored energy mechanism comprises snap close 21, amplify draw bar 22, energy-stored spring 23 and strike bar 24, described amplification draw bar 22 is pivotally connected on the pedestal 3, described snap close 21 is pivotally connected on the pedestal 3, one end of described energy-stored spring 23 is connected with amplification draw bar 22, the other end is connected with pedestal 3, described strike bar 24 is pivotally connected with amplification draw bar 22, and it is corresponding with the snap close of circuit breaker operation mechanism, described moving iron core 11 is positioned at the top of static iron core 12, the both ends of described spring 14 respectively with moving iron core 11, static iron core 12 contacts, one end of described snap close 21 has a lock hook 211, the other end has a drive rod 212, offer a lock hook hole 221 on the described amplification draw bar 22, one end of snap close 21 realizes with the cooperation in lock hook hole 221 by lock hook 211 and amplifies being connected between the draw bar 22 that the other end of snap close 21 is connected with moving iron core 11.
In a specific embodiment of the present utility model, the vertical sectional shape of described moving iron core 11 is the big T font in bottom for top is little, is formed with confined planes 112 at upper and lower two-part intersection.
In another specific embodiment of the present utility model, yoke cover 15 also is installed on the described pedestal 3, this yoke cover 15 places the top of described coil 13 inner chambers, is used for passing for described moving iron core 11.
In another specific embodiment of the present utility model, install one in the described yoke cover 15 and be used for the positioning sleeve 16 that the reset position to moving iron core 11 positions.
In another specific embodiment of the present utility model, be formed with a lug 222 on the described amplification draw bar 22, the position of this lug 222 is corresponding with the position of circuit breaker operation mechanism handle.
In of the present utility model and then specific embodiment, described strike bar 24 offers a vertical slot 241 in vertical direction, be provided with one and be used for playing the guiding role and guaranteeing to hit the strike axle 25 that bar 24 can only move up and down hitting bar 24 in vertical slot 241, this strikes spools 25 is fixed on the described pedestal 3.
The beneficial effect that the utlity model has: not only simple and compact for structure, volume is little, can effectively amplify electromagnetic attraction simultaneously, and operation is reliable, and action stability is good, and failure rate is low.
Description of drawings
Fig. 1 is an embodiment plane structure chart of the present utility model.
Fig. 2 is the stereochemical structure sketch of Fig. 1 embodiment.
Among the figure: 11. moving iron cores, 111. bonnet lock holes, 112. confined planes, 12. static iron cores, 13. coils, 14. springs, 15. yoke covers, 16. positioning sleeves; 21. snap close, 211. lock hooks, 212. drive rods, 22. amplify draw bar, 221. lock hook holes, 222. lugs, 23. energy-stored springs, 24. strike bars, 241. vertical slots, 25. strike axles; 3. pedestal.
Embodiment
By the description of applicant, will help to understand the utility model more, and good effect of the present utility model is embodied more, but embodiment should not be considered as the restriction to some extent to technical solutions of the utility model embodiment.
See also Fig. 1 and in conjunction with Fig. 2, a kind of circuit breaker of the utility model comprises electromagnetic mechanism, stored energy mechanism and pedestal 3 with the undervoltage tripping device.Described electromagnetic mechanism comprises coil 13, moving iron core 11, static iron core 12 and spring 14, coil 13 is arranged on the pedestal 3, has the inner chamber that is used to hold described moving iron core 11 and static iron core 12 in the centre of coil 13, described moving iron core 11 is positioned at the top of static iron core 12, moving iron core 11 is the cylinders that are made of two parts about major diameter and the minor diameter, its vertical sectional shape is up-small and down-big T font, last, two-part intersection is formed with confined planes 112 down, offer one in the end, upper end of moving iron core 11 and be used for the bonnet lock hole 111 that is connected with described snap close 21, described spring 14 is arranged in the inner chamber in the middle of the static iron core 12, and it is outer and touch with the bottom connection of moving iron core 11 that an end of spring 14 (Figure 1 shows that the upper end) leans out described static iron core 12 inner chambers.Interior top of chamber at described coil 13 also is provided with a yoke cover 15, this yoke cover 15 is installed on the pedestal 3, moving iron core 11 passes described yoke cover 15 and can overlap in 15 at yoke and moves up and down, in the described yoke cover 15 positioning sleeve 16 is installed, this positioning sleeve 16 cooperates with moving iron core 11, can the reset position of moving iron core 11 be positioned.Here need to prove: the setting of yoke cover 15, one side can be carried out spacing to moving iron core 11, can reduce the leakage field of electromagnetic mechanism on the other hand, increases electromagnetic attraction, makes electromagnetic mechanism compact more.
Please continue to consult Fig. 1 and in conjunction with Fig. 2, described stored energy mechanism comprises snap close 21, amplify draw bar 22, energy-stored spring 23 and strike bar 24, described amplification draw bar 22 is pivotally connected on the pedestal 3, on an end that amplifies draw bar 22, offer a lock hook hole 221, being formed with one at the other end that amplifies draw bar 22 is used for corresponding with the position of circuit breaker operation mechanism handle and can realizes the lug 222 that cooperatively interacts between the two, the middle part of described snap close 21 is pivotally connected on the pedestal 3, one end of snap close 21 has one and is used for realizing colluding the lock hook 211 of joining with the lock hook hole 221 of amplifying on the draw bar 22, the other end of snap close 21 is formed with a drive rod 212, and this drive rod 212 inserts in the bonnet lock hole 111 of ends, described moving iron core 11 upper end and realizes being connected between moving iron core 11 and the snap close 21.One end of described energy-stored spring 23 is connected with amplification draw bar 22, the other end of energy-stored spring 23 is connected with pedestal 3, describedly be used for the strike bar 24 that matches with snap close on the circuit breaker operation mechanism and to amplify draw bar 22 pivotally connected, on the vertical direction of hitting bar 24, offer a vertical slot 241, be provided with one and be used for playing the guiding role and guaranteeing to hit the strike axle 25 that bar 24 can only move up and down hitting bar 24 in vertical slot 241, this strikes spools 25 is fixed on the described pedestal 3.
Narrate operation principle of the present utility model below in conjunction with Fig. 1, Fig. 2: when the voltage at coil 13 two ends during, under the effect of static iron core 12 contained springs 14, apply reset force, snap close 21 is resetted by 11 pairs of snap closes 21 of moving iron core less than the drop away voltage set point.At this moment, if the motion of closing a floodgate takes place in circuit breaker, then the handle of circuit breaker operation mechanism is (not shown, belong to known technology) contact with lug 222 on the amplification draw bar 22, and drive to amplify draw bar 22 and be rotated counterclockwise, amplify the lock hook 211 that snap close 11 is passed in lock hook hole 221 on the draw bar 22, and pinned by snap close 21, shunt release is in the energy storage state, and circuit breaker can operate as normal.
When the voltage at coil 3 two ends during greater than the drop away voltage set point, the counter-force that the electromagnetic attraction that electromagnetic mechanism provides applies greater than spring 14, moving iron core 11 moves downward, and hits snap close 21, under the drive of moving iron core 11, and snap close 21 dropout that turns clockwise.Under the effect of energy-stored spring 23, amplify draw bar 22 and turn clockwise, drive strike part 24 and move upward, hit the snap close (not shown, as to belong to known technology) that part 24 impacts circuit breaker operation mechanism, make breaker open operation.
Claims (6)
1, a kind of circuit breaker shunt trip, it is characterized in that comprising electromagnetic mechanism, stored energy mechanism and pedestal (3), described electromagnetic mechanism comprises coil (13), moving iron core (11), static iron core (12) and spring (14), coil (13) is arranged on the pedestal (3), dynamic and static iron core (11,12) places the inner chamber of coil (13) respectively, and spring (14) is arranged in the inner chamber of static iron core (12); Described stored energy mechanism comprises snap close (21), amplify draw bar (22), energy-stored spring (23) and strike bar (24), described amplification draw bar (22) is pivotally connected on the pedestal (3), described snap close (21) is pivotally connected on the pedestal (3), one end of described energy-stored spring (23) is connected with amplification draw bar (22), the other end is connected with pedestal (3), described strike bar (24) is pivotally connected with amplification draw bar (22), and it is corresponding with the snap close of circuit breaker operation mechanism, described moving iron core (11) is positioned at the top of static iron core (12), the both ends of described spring (14) respectively with moving iron core (11), static iron core (12) contacts, one end of described snap close (21) has a lock hook (211), the other end has a drive rod (212), offer a lock hook hole (221) on the described amplification draw bar (22), one end of snap close (21) realizes with the cooperation of lock hook hole (221) by lock hook (211) and amplifies being connected between the draw bar (22) that the other end of snap close (21) is connected with moving iron core (11).
2, circuit breaker shunt trip according to claim 1, the vertical sectional shape that it is characterized in that described moving iron core (11) is the big T font in bottom for top is little, is formed with confined planes (112) at upper and lower two-part intersection.
3, circuit breaker shunt trip according to claim 1, it is characterized in that also being equipped with on the described pedestal (3) a yoke cover (15), this yoke cover (15) places the top of described coil (13) inner chamber, is used for passing for described moving iron core (11).
4, circuit breaker shunt trip according to claim 3 is characterized in that the interior installation one of described yoke cover (15) is used for the positioning sleeve (16) that the reset position that moves iron core (11) is positioned.
5, circuit breaker shunt trip according to claim 1 is characterized in that being formed with a lug (222) on the described amplification draw bar (22), and the position of this lug (222) is corresponding with the position of circuit breaker operation mechanism handle.
6, circuit breaker shunt trip according to claim 1, it is characterized in that described strike bar (24) offers a vertical slot (241) in vertical direction, be provided with one and be used for playing the guiding role and guaranteeing to hit the strike axle (25) that bar (24) can only move up and down hitting bar (24) in vertical slot (241), this strikes spool (25) is fixed on the described pedestal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200467672U CN201417726Y (en) | 2009-06-24 | 2009-06-24 | Shunt tripping device used for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200467672U CN201417726Y (en) | 2009-06-24 | 2009-06-24 | Shunt tripping device used for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201417726Y true CN201417726Y (en) | 2010-03-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200467672U Expired - Lifetime CN201417726Y (en) | 2009-06-24 | 2009-06-24 | Shunt tripping device used for circuit breaker |
Country Status (1)
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| CN (1) | CN201417726Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093979A (en) * | 2011-11-02 | 2013-05-08 | 西门子公司 | Force amplification module for an electrical switching device, unit comprising force amplification module and shunt release, as well as electrical switching device |
| CN103337418A (en) * | 2013-06-19 | 2013-10-02 | 国家电网公司 | Collision simulation device for combined electric appliance releasing linkage test |
| CN103456576A (en) * | 2013-09-18 | 2013-12-18 | 德力西电气有限公司 | Tripping mechanism on residual current device |
| CN104392866A (en) * | 2014-09-30 | 2015-03-04 | 佳一电气有限公司 | Energy-saving mechanism cooperating with electromagnetic switching-on and switching-off mechanism for use |
| CN107210163A (en) * | 2014-11-28 | 2017-09-26 | 伊顿电气Ip两合公司 | High-speed circuit breaker device for disconnecting the current path in switchgear |
| CN108172469A (en) * | 2016-12-08 | 2018-06-15 | 施耐德电器工业公司 | For the electrical equipment of turn-off current |
| CN112837977A (en) * | 2021-01-11 | 2021-05-25 | 嘉兴京硅智能技术有限公司 | Tripping protection device of electromechanical hybrid circuit breaker |
-
2009
- 2009-06-24 CN CN2009200467672U patent/CN201417726Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9767977B2 (en) | 2011-11-02 | 2017-09-19 | Siemens Aktiengesellschaft | Force amplification module for an electrical switching device, unit comprising force amplification module and shunt release, as well as electrical switching device |
| CN103093979A (en) * | 2011-11-02 | 2013-05-08 | 西门子公司 | Force amplification module for an electrical switching device, unit comprising force amplification module and shunt release, as well as electrical switching device |
| CN103093979B (en) * | 2011-11-02 | 2017-04-19 | 西门子公司 | Force amplification module for an electrical switching device, unit comprising force amplification module and shunt release, as well as electrical switching device |
| CN103337418A (en) * | 2013-06-19 | 2013-10-02 | 国家电网公司 | Collision simulation device for combined electric appliance releasing linkage test |
| CN103337418B (en) * | 2013-06-19 | 2015-09-30 | 国家电网公司 | Combined electrical apparatus dropout linkage test is with clashing into analogue means |
| CN103456576A (en) * | 2013-09-18 | 2013-12-18 | 德力西电气有限公司 | Tripping mechanism on residual current device |
| CN103456576B (en) * | 2013-09-18 | 2015-12-02 | 德力西电气有限公司 | Tripping mechanism on a kind of RCD |
| CN104392866A (en) * | 2014-09-30 | 2015-03-04 | 佳一电气有限公司 | Energy-saving mechanism cooperating with electromagnetic switching-on and switching-off mechanism for use |
| CN107210163A (en) * | 2014-11-28 | 2017-09-26 | 伊顿电气Ip两合公司 | High-speed circuit breaker device for disconnecting the current path in switchgear |
| US10217589B2 (en) | 2014-11-28 | 2019-02-26 | Eaton Intelligent Power Limited | High-speed circuit breaking array for breaking a current path in a switching device |
| CN107210163B (en) * | 2014-11-28 | 2020-02-07 | 伊顿电气Ip两合公司 | High-speed circuit breaker arrangement for breaking a current path in a switchgear |
| CN108172469A (en) * | 2016-12-08 | 2018-06-15 | 施耐德电器工业公司 | For the electrical equipment of turn-off current |
| CN108172469B (en) * | 2016-12-08 | 2021-11-26 | 施耐德电器工业公司 | Electrical device for breaking an electric current |
| CN112837977A (en) * | 2021-01-11 | 2021-05-25 | 嘉兴京硅智能技术有限公司 | Tripping protection device of electromechanical hybrid circuit breaker |
| CN112837977B (en) * | 2021-01-11 | 2023-06-06 | 嘉兴京硅智能技术有限公司 | Tripping protection device of electromechanical hybrid circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100303 |
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| CX01 | Expiry of patent term |