CN204927077U - Frame -type circuit breaker's contact system - Google Patents
Frame -type circuit breaker's contact system Download PDFInfo
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- CN204927077U CN204927077U CN201520722486.XU CN201520722486U CN204927077U CN 204927077 U CN204927077 U CN 204927077U CN 201520722486 U CN201520722486 U CN 201520722486U CN 204927077 U CN204927077 U CN 204927077U
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- contact
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- frame
- circuit breaker
- type circuit
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Abstract
The utility model relates to a frame -type circuit breaker's contact system, including setting up static contact, striking piece on the fixed part of last generating line, setting up at frame internal moving contact subassembly, the one end of striking piece fix on the fixed part of last generating line and be connected with the static contact, and the striking piece constitutes the structure that the basic configuration is the L type with last generating line, the other end of striking piece is connected in arc control device, the moving contact subassembly include contact carrier, set up pivot in contact carrier, set up and change epaxial a plurality of moving contacts, the below department that corresponds the movable contact of each moving contact sets up contact cover on contact carrier, clamp the contact support of contact carrier upper end each moving contact and contact support between all be provided with the spring, the fixed part of each moving contact and lower generating line between be connected through the flexible coupling respectively. The utility model has the advantages of breaking capacity is strong, the temperature rise is low, the stable performance is reliable.
Description
Technical field
The utility model relates to device for switching technical field, is specifically related to a kind of contact system of frame-type circuit breaker.
Background technology
Frame-type circuit breaker can connect, carries and electric current under disjunction normal circuit condition, also can connect under the improper circuit condition of regulation, a kind of mechanical switch electrical equipment of carrying certain hour and breaking current.Frame-type circuit breaker comprises drawout chassis, be installed on the underframe in drawout chassis, be arranged on the frame body in drawout chassis, conducting system, the contact system be arranged in frame body, the arc-control device be arranged in frame body, operating mechanism, face shield, but, the structural design of the contact system of existing frame-type circuit breaker is unreasonable, thus there is unstable properties in this frame-type circuit breaker, the defect that breaking capacity is poor, operating temperature rise is high.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provides a kind of contact system of frame-type circuit breaker, can do effectively to solve that frame-type circuit breaker unstable properties, breaking capacity are poor, the defect of temperature rise.
For achieving the above object, the utility model adopts a kind of contact system of frame-type circuit breaker, comprise the fixed contact be arranged on the fixed part of Up Highway UHW, arc striking piece, be arranged on the moving contact component in frame body, the fixed part that one end of described arc striking piece is fixed on Up Highway UHW is connected with fixed contact, and arc striking piece and Up Highway UHW form the structure that basic configuration is L-type, the other end of arc striking piece is connected in arc-control device, described moving contact component comprises contact supporting, be arranged on the rotating shaft in contact supporting, multiple moving contacts in rotating shaft are set, the below place of the moving contact of corresponding each moving contact is arranged on the Contact Cover on contact supporting, be installed on the contact support of contact supporting upper end, spring is provided with between described each moving contact and contact support, be connected respectively by being flexible coupling between described each moving contact and the fixed part of Down Highway.
The beneficial effect of said structure is: the contact system of this frame-type circuit breaker is by being improved the structure of fixed contact, when this frame-type circuit breaker is in disjunction, this arc striking piece is non-conductive, thus largely reducing the active force of fixed contact to electric arc, and can magnetic field be produced around electric arc, arc striking piece is magnetized, suction is produced to electric arc, thus electric arc moves to arc striking piece direction, rapid elongation electric arc enters in arc-control device, when electric current is by moving contact, interaction force is produced between moving contact and electric arc, electric arc is subject to repulsion upwards, electric arc is by rapid elongation, enter into rapidly in arc-control device, moving contact is subject to repulsion left simultaneously, moving contact is that rotary middle point rotates with rotating shaft, accelerate the opening speed of moving contact and fixed contact, be conducive to rapid elongation and the extinguishing of electric arc, thus improve the breaking capacity of this frame-type circuit breaker.
Especially, in described contact support, corresponding each spring place is provided with location hole, on described each moving contact, corresponding each spring place is provided with suitable draw-in groove, and one end of described each spring is installed in corresponding draw-in groove, and the other end of each spring is installed in corresponding location hole.By being respectively arranged with draw-in groove and location hole at the two ends of spring, spring fitting is more convenient, and can play the effect of location, thus improves the stability of this frame-type circuit breaker work.
Especially, described Contact Cover is configured with a projection towards the extension of fixed contact direction, and the upper surface of this projection is provided with tongue and groove.This Contact Cover is that gas exhausted material is made, when this frame-type circuit breaker meets short circuit current disjunction generation electric arc, electric arc has huge heat, and projection is discharged a large amount of gas push electric arc by glowing combustion, and electric arc is by rapid elongation, and enter rapidly in arc-control device and extinguished, thus improve the short circuit breaking capacity of this frame-type circuit breaker, and the upper surface of projection is provided with tongue and groove, add aerogenesis area, the gas that more effective release is a large amount of, improves gas deliverability.
Especially, described contact support is provided with two isolation grid, described multiple moving contacts are separated into three groups of impartial sets of contacts by described two isolation grid, and between every two moving contacts in described rotating shaft in corresponding each group sets of contacts, place is provided with an insulating trip.By being provided with insulating trip between every two moving contacts in each group of sets of contacts, thus can prevent moving contact from can not tilt because being subject to external force, thus ensure that each moving contact energy flexible rotating, thus improve the stability of this frame-type circuit breaker work.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment cutaway view.
Fig. 2 is the utility model embodiment stereogram.
Fig. 3 is the installation diagram of the utility model moving contact and spring.
Fig. 4 is the stereogram that the utility model contact is supported.
Fig. 5 is the stereogram of the utility model Contact Cover.
Fig. 6 is the vertical view of the utility model moving contact component.
Fig. 7 is the front view of the utility model moving contact.
Embodiment
As shown in Figure 1, 2, the utility model embodiment is a kind of contact system of frame-type circuit breaker, comprises the fixed contact 50 on the fixed part being arranged on Up Highway UHW 10, arc striking piece 51, the moving contact component 60 be arranged in frame body 30.The fixed part that one end of described arc striking piece 51 is fixed on Up Highway UHW 10 is connected with fixed contact 50, and arc striking piece 51 and Up Highway UHW 10 form the structure that basic configuration is L-type, the other end of arc striking piece 51 is connected in arc-control device 70.Described moving contact component 60 comprises contact supporting 61, the rotating shaft 62 be arranged in contact supporting 61, the multiple moving contacts 63 arranged in rotating shaft 62, the below place of the moving contact of corresponding each moving contact 63 is arranged on Contact Cover 64 on contact supporting 61, is installed on the contact support 65 of contact supporting 61 upper end, is provided with spring 66 between described each moving contact 63 and contact support 65, is connected between described each moving contact 63 and the fixed part of Down Highway 20 respectively by being flexible coupling.As shown in Figure 2,3, 4, in described contact support 65, corresponding each spring 66 place is provided with location hole 651, on described each moving contact 63, corresponding each spring 66 place is provided with suitable draw-in groove 631, one end of described each spring 66 is installed in corresponding draw-in groove 631, and the other end of each spring 66 is installed in corresponding location hole 651.By being respectively arranged with draw-in groove and location hole at the two ends of spring, spring fitting is more convenient, and can play the effect of location, thus improves the stability of this frame-type circuit breaker work.
As shown in Fig. 1,2,5, described Contact Cover 64 is configured with a projection 641 towards the extension of fixed contact 50 direction, and the upper surface of this projection 641 is provided with tongue and groove 642.This Contact Cover is that gas exhausted material is made, when this frame-type circuit breaker meets short circuit current disjunction generation electric arc, electric arc has huge heat, and projection is discharged a large amount of gas push electric arc by glowing combustion, and electric arc is by rapid elongation, and enter rapidly in arc-control device and extinguished, thus improve the short circuit breaking capacity of this frame-type circuit breaker, and the upper surface of projection is provided with tongue and groove, add aerogenesis area, the gas that more effective release is a large amount of, improves gas deliverability.
As shown in Figure 6,7, described contact support 65 is provided with two isolation grid 652, described multiple moving contacts 63 are separated into three groups of impartial sets of contacts by described two isolation grid 652, and between every two moving contacts 63 in described rotating shaft 62 in corresponding each group sets of contacts, place is provided with an insulating trip 621.By being provided with insulating trip between every two moving contacts in each group of sets of contacts, thus can prevent moving contact from can not tilt because being subject to external force, thus ensure that each moving contact energy flexible rotating, thus improve the stability of this frame-type circuit breaker work.
When this frame-type circuit breaker is in disjunction, this arc striking piece is non-conductive, thus largely reducing the active force of fixed contact to electric arc, and can magnetic field be produced around electric arc, arc striking piece is magnetized, suction is produced to electric arc, thus electric arc moves to arc striking piece direction, rapid elongation electric arc enters in arc-control device, when electric current is by moving contact, interaction force is produced between moving contact and electric arc, electric arc is subject to repulsion upwards, electric arc is by rapid elongation, enter into rapidly in arc-control device, moving contact is subject to repulsion left simultaneously, moving contact is that rotary middle point rotates with rotating shaft, accelerate the opening speed of moving contact and fixed contact, be conducive to rapid elongation and the extinguishing of electric arc, thus improve the breaking capacity of this frame-type circuit breaker.
Claims (5)
1. the contact system of a frame-type circuit breaker, comprise the fixed contact be arranged on the fixed part of Up Highway UHW, arc striking piece, be arranged on the moving contact component in frame body, it is characterized in that: the fixed part that one end of described arc striking piece is fixed on Up Highway UHW is connected with fixed contact, and arc striking piece and Up Highway UHW form the structure that basic configuration is L-type, the other end of arc striking piece is connected in arc-control device, described moving contact component comprises contact supporting, be arranged on the rotating shaft in contact supporting, multiple moving contacts in rotating shaft are set, the below place of the moving contact of corresponding each moving contact is arranged on the Contact Cover on contact supporting, be installed on the contact support of contact supporting upper end, spring is provided with between described each moving contact and contact support, be connected respectively by being flexible coupling between described each moving contact and the fixed part of Down Highway.
2. the contact system of frame-type circuit breaker according to claim 1, it is characterized in that: in described contact support, corresponding each spring place is provided with location hole, on described each moving contact, corresponding each spring place is provided with suitable draw-in groove, one end of described each spring is installed in corresponding draw-in groove, and the other end of each spring is installed in corresponding location hole.
3. the contact system of frame-type circuit breaker according to claim 1 and 2, is characterized in that: described Contact Cover is configured with a projection towards the extension of fixed contact direction, and the upper surface of this projection is provided with tongue and groove.
4. the contact system of frame-type circuit breaker according to claim 1, is characterized in that: described Contact Cover is configured with a projection towards the extension of fixed contact direction, and the upper surface of this projection is provided with tongue and groove.
5. the contact system of the frame-type circuit breaker according to claim 1 or 2 or 4, it is characterized in that: described contact support is provided with two isolation grid, described multiple moving contacts are separated into three groups of impartial sets of contacts by described two isolation grid, and between every two moving contacts in described rotating shaft in corresponding each group sets of contacts, place is provided with an insulating trip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722486.XU CN204927077U (en) | 2015-09-12 | 2015-09-12 | Frame -type circuit breaker's contact system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722486.XU CN204927077U (en) | 2015-09-12 | 2015-09-12 | Frame -type circuit breaker's contact system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204927077U true CN204927077U (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520722486.XU Active CN204927077U (en) | 2015-09-12 | 2015-09-12 | Frame -type circuit breaker's contact system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204927077U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847637A (en) * | 2017-03-08 | 2017-06-13 | 乐清市正雁电器有限公司 | frame-type circuit breaker |
| CN107749354A (en) * | 2017-11-21 | 2018-03-02 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | Switch contact structure with automatic cleaning function |
| CN117457453A (en) * | 2023-12-25 | 2024-01-26 | 浙江正泰电器股份有限公司 | Arc extinguishing structure of circuit breaker and circuit breaker |
| CN117457453B (en) * | 2023-12-25 | 2024-04-30 | 浙江正泰电器股份有限公司 | Arc extinguishing structure of circuit breaker and circuit breaker |
-
2015
- 2015-09-12 CN CN201520722486.XU patent/CN204927077U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847637A (en) * | 2017-03-08 | 2017-06-13 | 乐清市正雁电器有限公司 | frame-type circuit breaker |
| CN107749354A (en) * | 2017-11-21 | 2018-03-02 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | Switch contact structure with automatic cleaning function |
| CN117457453A (en) * | 2023-12-25 | 2024-01-26 | 浙江正泰电器股份有限公司 | Arc extinguishing structure of circuit breaker and circuit breaker |
| CN117457453B (en) * | 2023-12-25 | 2024-04-30 | 浙江正泰电器股份有限公司 | Arc extinguishing structure of circuit breaker and circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325600 Yueqing City, Zhejiang City East Street industrial function area Yonghe No. three road 15 Patentee after: Zhejiang Zheng Yan Electric Co., Ltd. Address before: 325600 Yueqing City, Zhejiang City East Street industrial function area Yonghe No. three road 15 Patentee before: Yueqing Zhengyan Electric Co., Ltd. |
|
| CU01 | Correction of utility model patent | ||
| CU01 | Correction of utility model patent |
Correction item: Patentee|Address Correct: Zhejiang ever Electric Appliance Co., Ltd.|325600 Yueqing City, Zhejiang City East Street industrial function area Yonghe No. three road 15 False: Zhejiang Zheng Yan Electric Co., Ltd.|325600 Yueqing City, Zhejiang City East Street industrial function area Yonghe No. three road 15 Number: 05-02 Volume: 34 |