CN103094014B - Pneumatic and electromagnet integrated protection device used for circuit breaker - Google Patents
Pneumatic and electromagnet integrated protection device used for circuit breaker Download PDFInfo
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- CN103094014B CN103094014B CN201310021168.6A CN201310021168A CN103094014B CN 103094014 B CN103094014 B CN 103094014B CN 201310021168 A CN201310021168 A CN 201310021168A CN 103094014 B CN103094014 B CN 103094014B
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Abstract
The invention relates to a pneumatic and electromagnet integrated protection device used for a circuit breaker. A brake bar of pneumatic protection and a brake bar of the electromagnet protection of the production device are long shafts. When the pneumatic protection is carried out, the electromagnet protection is not in motion, and a mechanism is driven by just a transmission piece to drop out. When the electromagnet protection is carried out, the pneumatic function is not achieved, and the mechanism is driven by just the transmission piece to drop out. According to different numbers of poles of the circuit breaker, the structure of the protection device differs. The device comprises a long shaft with a plane, a long arm transmission piece and a short arm transmission piece, wherein the long arm transmission piece and the short arm transmission piece are fixed on the long shaft and are both mounted on the long shaft in a sleeved mode, the long shaft is limited by through holes on a first outer shell and a second outer shell of a plastic module and can freely rotate in the through holes, the long arm transmission piece is separated from the short arm transmission piece at a width of the plastic module, and both the long arm transmission piece and the short arm transmission piece can be contacted with a movable iron core support on the plastic module. The pneumatic and electromagnet integrated protection device integrates the electromagnet protection with the pneumatic protection, occupies a small space, and is simple I structure and reliable in motion.
Description
Technical field
the invention belongs to dynamo-electric manufacture field, particularly a kind of protective device of the pneumatic and electromagnet integral type on circuit breaker.
Technical background
On circuit breaker, the electromagnet protection of non-characteristic dropout module is often designed to independent one, need take certain space and carry out practical function protection; Pneumatic protection on circuit breaker is designed to independent one equally, need take certain space and carry out practical function protection.Both are also different to the drive station of tripping mechanism draw bar when practical function, therefore mechanism's draw bar need design two drive station respectively carrys out mating protection device.Both are the protective device that circuit breaker being reacted rapidly to operating mechanism when breaking down, being triped.But above-mentioned two kinds protective device function is identical but structure different, therefore causes complex structure and take up room large.
Summary of the invention
For overcoming difficulties above-mentioned defect, it is simple and pneumatic protection and electromagnet can be protected the molten protective device be integrated that the technical problem to be solved in the present invention is to provide a kind of little, structure of taking up room.
A protective device for pneumatic and electromagnet integral type on circuit breaker, the brake bar that the pneumatic protection of this protective device and electromagnet are protected is major axis; During pneumatic protection, electromagnet protection is failure to actuate, and is only threaded off by driving member lead agency; During electromagnet protection, pneumatic function is unreal existing, is only threaded off by driving member lead agency; The number of poles that this protective device is different according to circuit breaker, structure is different; This device comprises the major axis of a band plane and the long-armed driving member be fixed on major axis and galianconism driving member, and long-armed driving member and galianconism driving member are all set with and are fixed on major axis; Major axis is spacing by the through hole on the first shell of plastic module and second housing, and freely can rotate in this hole; Long-armed driving member and galianconism driving member are separated by the width of a plastic module, and both all can contact with the dynamic iron core bracket on plastic module; Each module is equipped with dynamic iron core bracket, and its quantity becomes the ratio of 1:1 with number of poles.
In whole protective device, the quantity of long-armed driving member is 1, and the quantity of galianconism driving member is determined according to number of poles, and number of poles is N, then the quantity of galianconism driving member is N-1.
Electromagnet is protected:
---the electromagnet iron protection of one pole module, when line failure, can drive long-armed driving member around major axis fulcrum by the lower inclined plane of dynamic iron core bracket, and while long-armed driving member rotation, also the rotation of lead agency draw bar is triped;
---electromagnet protection more than one pole module, when line failure, drive corresponding galianconism driving member around major axis fulcrum by the lower inclined plane of the dynamic iron core bracket on corresponding module, drive long-armed driving member to rotate, long-armed driving member rotates also lead agency draw bar rotation and trips simultaneously;
---when circuit is normal, long-armed driving member and galianconism driving member all reset by the reaction spring of plastic module side, keep and mechanism's draw bar relative distance.
Pneumatic protection:
---the pneumatic protection of one pole module, when line failure, the gas atmosphere in gas-tight silo promotes long-armed driving member, makes it around major axis fulcrum, trips to mechanism; Gas-tight silo to be coordinated with capping by the first shell and is formed, and one of long-armed driving member is positioned at gas-tight silo, relies on the effect of reaction spring to remain on certain position;
---pneumatic protection more than one pole module, when line failure, the hole communicated is had to connect between the seal modules of each pole, make to be combined to form between module a large annular seal space, gas atmosphere in gas-tight silo promotes galianconism driving member, makes it around major axis fulcrum, drives long-armed driving member to rotate simultaneously, long-armed driving member rotates also lead agency draw bar and rotates, and trips to mechanism; One of long-armed driving member and galianconism driving member is all positioned at corresponding gas-tight silo, relies on the effect of reaction spring to remain on certain position;
---when circuit is normal, long-armed driving member and galianconism driving member reset by the reaction spring of plastic module side, keep and mechanism's draw bar relative distance.
Integral type protective device of the present invention is the inspiration obtained on the basis of the protection of former electromagnet and pneumatic protection, by both molten protective devices be integrated, this protective device take up room little and structure simply, reliable in action.
Accompanying drawing explanation
Fig. 1 is the structural representation of protective device of the present invention;
Fig. 2 is the decomposing schematic representation of protective device of the present invention;
Fig. 3 be in protective device of the present invention long-armed driving member or galianconism driving member and dynamic iron core coordinate contact-making surface schematic diagram.
Embodiment
The number of poles of circuit breaker is generally 1 ~ 4 pole, and enterprise needs production according to different, and integral type protective device of the present invention is also slightly different according to different pole count configuration.Integral type protective device of the present invention is the inspiration obtained on the basis of the protection of former electromagnet and pneumatic protection, by both molten protective devices be integrated, this protective device take up room little and structure simply, reliable in action.
A protective device for pneumatic and electromagnet integral type on circuit breaker, this device is combined with the long-armed driving member 2 be fixed on major axis 1 and galianconism driving member 8 by the major axis 1 of a band plane.In whole protective device, the quantity of long-armed driving member 2 is 1, and the quantity of galianconism driving member 8 is determined according to number of poles, if number of poles is N, then the quantity of galianconism driving member 8 is N-1.Each number of poles is equipped with dynamic iron core bracket 6, its quantity becomes the ratio of 1:1 with number of poles.Major axis 1 is spacing by the through hole on the first shell 3 of plastic module 7 and second housing 4, freely can rotate in this hole.Long-armed driving member 2 and galianconism driving member 8 are separated by the width of a plastic module 7, and both all can contact with the dynamic iron core bracket 6 on plastic module 7.
Electromagnet is protected: the electromagnet protection of one pole module, when line failure, can drive long-armed driving member 2 around major axis 1 fulcrum by the lower inclined plane of dynamic iron core bracket 6, and while long-armed driving member 2 rotation, also lead agency draw bar 5 rotation is triped; Electromagnet protection more than one pole module; when line failure; drive corresponding galianconism driving member 8 around major axis 1 fulcrum by the lower inclined plane of the dynamic iron core bracket 6 on corresponding module; drive long-armed driving member 2 to rotate simultaneously; long-armed driving member 2 rotates also lead agency draw bar 5 rotation and trips, and completes electromagnet protection.Fig. 1,2 is for example with the two poles of the earth module.When circuit is normal, long-armed driving member 2 and galianconism driving member 8 all reset by the reaction spring 10 of plastic module 7 side, keep and mechanism's draw bar 5 relative distance.
Pneumatic protection: the pneumatic protection of one pole module, when line failure, the gas atmosphere in gas-tight silo promotes long-armed driving member 2, makes it around major axis 1 fulcrum, trips to mechanism.Gas-tight silo to be coordinated with capping 9 by the first shell 3 and is formed, and one of long-armed driving member 2 is positioned at gas-tight silo, relies on the effect of reaction spring 10 to remain on certain position.Pneumatic protection more than one pole module; when line failure; the hole communicated is had to connect between the seal modules of each pole; make to be combined to form between module a large annular seal space; gas atmosphere in gas-tight silo promotes galianconism driving member 8, makes it around major axis 1 fulcrum, drives long-armed driving member 2 to rotate simultaneously; long-armed driving member 2 rotates also lead agency draw bar 5 and rotates, and trips to mechanism.One of long-armed driving member 2 and galianconism driving member 8 is all positioned at corresponding gas-tight silo, relies on the effect of reaction spring 10 to remain on certain position.Fig. 1,2 is for example with the two poles of the earth module.When circuit is normal, long-armed driving member 2 and galianconism driving member 8 lean on the reaction spring 10 of plastic module 7 side to reset, and keep and mechanism's draw bar 5 relative distance.
Fig. 3 is that what be depicted as long-armed driving member 2 or galianconism driving member 8 and dynamic iron core bracket 6 coordinates contact-making surface schematic diagram with three pole modules for example.Long-armed driving member 2 and galianconism driving member 8 are all set with and are fixed on major axis 1.
Electromagnet protection is circuit breaker when in use circuit occurring suddenly certain fault current, and rely on yoke to attract dynamic iron core, lead agency is reacted rapidly, a kind of instantaneous protection that mechanism is triped.Electromagnet design protection is on seal modules, therefore operate time will faster than the dropout module action time, the more effective protection circuit of energy and equipment.
Pneumatic protection is circuit breaker when there is disjunction fault current, rely on dynamic and static contact in annular seal space first separately time a large amount of gas pushs of producing long-armed or galianconism driving members, a kind of instantaneous protection that lead agency is triped.The damage that pneumatic protection can prevent moving contact from bouncing to circuit breaker when resetting again, for the second level of circuit breaker is protected.
The brake bar that the pneumatic protection of protective device of the present invention and electromagnet are protected is major axis 1.During pneumatic protection, electromagnet protection is failure to actuate, and is only threaded off by driving member lead agency; During electromagnet protection, pneumatic function is unreal existing, is only threaded off by driving member lead agency.Integral type protective device is arranged on circuit breaker base inside, takies inner space little, and reduce parts, it is convenient to install, and has saved cost.
The advantage of integral type protective device of the present invention:
1, limited space is utilized, triped by electromagnet direction and pneumatic direction of triping is designed to rightabout, long-armed driving member 2 or galianconism driving member 8 are with together with plane groove coordinates with band plane major axis 1, can rotation-limited, ensure that driving member rotates consistent with major axis 1;
2, the electromagnet more than one pole module is triped and pneumaticly to be triped; by galianconism driving member 8 by major axis 1; draw long-armed driving member 2 to rotate around major axis 1 fulcrum, the action protection namely in other module, finally realized triping by this module that long-armed driving member 2 and behaviour's machine mechanism are housed.Because galianconism driving member 8 and long-armed driving member 2 are kept strokes, trip so the action protection of each module all can carry out action at one time.
3, the action of dynamic iron core bracket 6 directly drives long-armed driving member 2 or galianconism driving member 8 action.Contact-making surface is positioned at the middle part of dynamic iron core bracket 6, and the rotational angle of dynamic iron core bracket 6 rotational angle and long-armed driving member 2 is proportional.
4, electromagnet protection trip to trip with pneumatic protection by with the coordinating to rotate and realize of long-armed driving member 2, both share a driving member, non-interference in process of triping.
Claims (3)
1. a protective device for the pneumatic and electromagnet integral type on circuit breaker, the brake bar that the pneumatic protection of this protective device and electromagnet are protected is major axis (1); During pneumatic protection, electromagnet protection is failure to actuate, and is only threaded off by driving member lead agency; During electromagnet protection, pneumatic function is unreal existing, is only threaded off by driving member lead agency; The number of poles that this protective device is different according to circuit breaker, structure is different; It is characterized in that: this device comprises the band major axis (1) of plane and the long-armed driving member (2) be fixed on major axis (1) and galianconism driving member (8), and long-armed driving member (2) and galianconism driving member (8) are all set with and are fixed on major axis (1); Described major axis (1) is spacing by the through hole on first shell (3) of plastic module (7) and second housing (4), and freely can rotate in this hole; Long-armed driving member (2) and galianconism driving member (8) are separated by the width of a plastic module (7), and both all can contact with the dynamic iron core bracket (6) on plastic module (7); Each module is equipped with dynamic iron core bracket (6), its quantity becomes the ratio of 1:1 with number of poles.
2. protective device according to claim 1, is characterized in that: described electromagnet protection:
---the electromagnet iron protection of one pole module, when line failure, long-armed driving member (2) can be driven around major axis (1) fulcrum by the lower inclined plane of dynamic iron core bracket (6), while long-armed driving member (2) rotates, also lead agency draw bar (5) rotation is triped;
---electromagnet protection more than one pole module, when line failure, drive corresponding galianconism driving member (8) around major axis (1) fulcrum by the lower inclined plane of the dynamic iron core bracket (6) on corresponding module, drive long-armed driving member (2) to rotate, long-armed driving member (2) rotates also lead agency draw bar (5) rotation and trips simultaneously;
---when circuit is normal, long-armed driving member (2) and galianconism driving member (8) all reset by the reaction spring (10) of plastic module (7) side, keep and mechanism's draw bar (5) relative distance.
3. protective device according to claim 1, is characterized in that: described pneumatic protection:
---the pneumatic protection of one pole module, when line failure, the gas atmosphere in gas-tight silo promotes long-armed driving member (2), makes it around major axis (1) fulcrum, trips to mechanism; Gas-tight silo to be coordinated with capping (9) by the first shell (3) and is formed, and one of long-armed driving member (2) is positioned at gas-tight silo, relies on the effect of reaction spring (10) to remain on certain position;
---pneumatic protection more than one pole module, when line failure, the hole communicated is had to connect between the seal modules of each pole, make to be combined to form between module a large annular seal space, gas atmosphere in gas-tight silo promotes galianconism driving member (8), makes it around major axis (1) fulcrum, drives long-armed driving member (2) to rotate simultaneously, long-armed driving member (2) rotates also lead agency draw bar (5) and rotates, and trips to mechanism; One of long-armed driving member (2) and galianconism driving member (8) is all positioned at corresponding gas-tight silo, relies on the effect of reaction spring (10) to remain on certain position;
---when circuit is normal, long-armed driving member (2) and galianconism driving member (8) reset by the reaction spring (10) of plastic module (7) side, keep and mechanism's draw bar (5) relative distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021168.6A CN103094014B (en) | 2013-01-21 | 2013-01-21 | Pneumatic and electromagnet integrated protection device used for circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021168.6A CN103094014B (en) | 2013-01-21 | 2013-01-21 | Pneumatic and electromagnet integrated protection device used for circuit breaker |
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| Publication Number | Publication Date |
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| CN103094014A CN103094014A (en) | 2013-05-08 |
| CN103094014B true CN103094014B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310021168.6A Active CN103094014B (en) | 2013-01-21 | 2013-01-21 | Pneumatic and electromagnet integrated protection device used for circuit breaker |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845547B (en) * | 2017-12-13 | 2020-10-02 | 常熟开关制造有限公司(原常熟开关厂） | Draw bar and circuit breaker |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4430631A (en) * | 1982-05-10 | 1984-02-07 | Eaton Corporation | Circuit breaker with increased current interrupting capacity |
| US4461937A (en) * | 1981-09-18 | 1984-07-24 | Mcgraw-Edison Company | Fail-safe hydraulically operated circuit breaker accumulator arrangement |
| CN1056374A (en) * | 1990-05-04 | 1991-11-20 | 梅兰日兰公司 | The instantaneous trip apparatus of circuit-breaker |
| CN1071784A (en) * | 1991-10-15 | 1993-05-05 | 梅兰日兰公司 | Range of molded case low voltage circuit breakers |
| CN1482643A (en) * | 2002-09-12 | 2004-03-17 | 浙江正泰电器股份有限公司 | Low-voltage circuit breaker with rapid lock-jumping function |
| CN101604601A (en) * | 2009-06-05 | 2009-12-16 | 上海诺雅克电气有限公司 | Quick trip breaker with function of pneumatic actuation trip |
| CN102568949A (en) * | 2010-12-16 | 2012-07-11 | Ls产电株式会社 | Shaft Assembly For Molded Case Circuit Breaker |
-
2013
- 2013-01-21 CN CN201310021168.6A patent/CN103094014B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4461937A (en) * | 1981-09-18 | 1984-07-24 | Mcgraw-Edison Company | Fail-safe hydraulically operated circuit breaker accumulator arrangement |
| US4430631A (en) * | 1982-05-10 | 1984-02-07 | Eaton Corporation | Circuit breaker with increased current interrupting capacity |
| CN1056374A (en) * | 1990-05-04 | 1991-11-20 | 梅兰日兰公司 | The instantaneous trip apparatus of circuit-breaker |
| CN1071784A (en) * | 1991-10-15 | 1993-05-05 | 梅兰日兰公司 | Range of molded case low voltage circuit breakers |
| CN1482643A (en) * | 2002-09-12 | 2004-03-17 | 浙江正泰电器股份有限公司 | Low-voltage circuit breaker with rapid lock-jumping function |
| CN101604601A (en) * | 2009-06-05 | 2009-12-16 | 上海诺雅克电气有限公司 | Quick trip breaker with function of pneumatic actuation trip |
| CN102568949A (en) * | 2010-12-16 | 2012-07-11 | Ls产电株式会社 | Shaft Assembly For Molded Case Circuit Breaker |
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| CN103094014A (en) | 2013-05-08 |
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Address after: The middle section of Wuhan road Huichuan District Waigaoqiao Industrial Park 563002 Guizhou city of Zunyi Province Patentee after: SHENZHEN TAIYONG ELECTRIC Co.,Ltd. Address before: The middle section of Wuhan road Huichuan District Waigaoqiao Industrial Park 563002 Guizhou city of Zunyi Province Patentee before: Guizhou Taiyong long Technology Co.,Ltd. |
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Address after: The middle section of Wuhan road Huichuan District Waigaoqiao Industrial Park 563002 Guizhou city of Zunyi Province Patentee after: Guizhou Taiyong long Technology Co.,Ltd. Address before: 563002 No. 147, Shanghai Road, Zunyi, Guizhou Patentee before: GUIZHOU CHANGZHENG SWITCH MFG CO.,LTD. |