CN204155855U - A kind of back-off clamping type high-voltage DC contactor - Google Patents
A kind of back-off clamping type high-voltage DC contactor Download PDFInfo
- Publication number
- CN204155855U CN204155855U CN201420529697.7U CN201420529697U CN204155855U CN 204155855 U CN204155855 U CN 204155855U CN 201420529697 U CN201420529697 U CN 201420529697U CN 204155855 U CN204155855 U CN 204155855U
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- contactor
- iron
- fixed
- clad
- bracing frame
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Abstract
A kind of back-off clamping type high-voltage DC contactor, comprise contactor main body (1), iron-clad (2), bracing frame (3) is provided with in described contactor main body, it is characterized in that: bracing frame (3) is fixed on iron-clad (2) inwall, bracing frame (3) height, lower than iron-clad (2), is provided with the back-off (4) of convex shape at iron-clad (2) a little more than the position of bracing frame (3).On iron-clad, the back-off (4) of (2) effectively can clamp the position of bracing frame (3), ensures the firmness of assembly structure.
Description
Technical field
The utility model relates to a kind of contactor, particularly relates to a kind of back-off clamping type high-voltage DC contactor.
Background technology
The contactor of automobile refers to and utilizes coil to flow through current induced magnetic field, makes contact closure, realizes effective transmission of power.Conventional contactor is by electromagnetic system (dynamic unshakable in one's determination, fixed core, solenoid), contact system and arc-control device composition.After the solenoid energising of contactor, very strong magnetic field can be produced, make fixed core produce electromagnetic attraction and attract dynamic unshakable in one's determination, and drive contact action: contact closure; When the coil is de-energized, electromagnetic attraction disappears, and dynamic iron core discharges under the effect of retracting spring, and contact is restored: contact disconnects.
Contact can produce electric arc in make and break process, the high temperature that electric arc produces can make contact burn black, burn, singe and produce metallic particles, directly affect the useful life of contactor.General high-voltage DC contactor is commonly used to new energy motor, the fields such as inverter, and electric current can reach 200A or higher, and voltage is then between 500V-900V, and when voltage is more and more higher, the problem of electric arc also becomes more and more serious.Solving one of method of electric arc is the magnetic quenching adopting sealing means, the magnetic field that usual two magnetic conductive boards (permanent magnet) produce is vertical with the line direction of two contacts, adopt sealing technology be isolated from the outside by arc control device and be filled with insulation arc extinguishing gases, to reach good arc quenching effect simultaneously.On road surface of jolting, car body vibrations occur in vehicle traveling process, contactor interior section structure, due to the easy recurring structure dislocation of existence of fit clearance, affects overall performance.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of back-off clamping type high-voltage DC contactor, overcome the problem that existing D.C. contactor causes part-structure to misplace because of External Force Acting.
The technical scheme in the invention for solving the above technical problem is:
A kind of back-off clamping type high-voltage DC contactor, comprise contactor main body (1), iron-clad (2), bracing frame (3) is provided with in described contactor main body, it is characterized in that: bracing frame (3) is fixed on iron-clad (2) inwall, bracing frame (3) height, lower than iron-clad (2), is provided with the back-off (4) of convex shape at iron-clad (2) a little more than the position of bracing frame (3).
The protrusion direction of described back-off (4) is inside cavity direction.
Described contactor main body (1) also comprises stem (5), fixed contact (6), moving contact (7), (8) unshakable in one's determination, moving axis (9) and return spring (10).(8) unshakable in one's determination are fixed on moving axis (9) lower end, and return spring (10) is fixed on moving axis (9) middle part, and moving contact (7) is arranged on moving axis (9) top; Stem (5) and fixed contact (6) are fixed into an entirety, are in directly over moving contact (7), two fixed contacts (6) corresponding two moving contact (7) contacts respectively.
The technique effect of the utility model employing achieved by technique scheme is:
Back-off on iron-clad effectively can clamp the position of bracing frame, ensures the firmness of assembly structure.
accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model
Fig. 2 is back-off schematic diagram of the present utility model
Wherein, 1-contactor main body, 2-iron-clad, 3-bracing frame, 4-back-off, 5-stem, 6-fixed contact, 7-moving contact, 8-is unshakable in one's determination, 9-moving axis, 10-return spring
Embodiment
A kind of back-off clamping type high-voltage DC contactor as shown in Figure 1 and Figure 2, comprise contactor main body 1, iron-clad 2, bracing frame 3 is provided with in described contactor main body, bracing frame 3 is fixed on iron-clad 2 inwall, bracing frame 3 height, lower than iron-clad 2, is provided with the back-off 4 of convex shape at iron-clad 2 a little more than the position of bracing frame 3.Back-off production method is after the assembling of cavity inner structure, and inside iron cup lateral, extruding is formed.Contactor main body 1 also comprises stem 5, fixed contact 6, moving contact 7, iron core 8, moving axis 9 and return spring 10.Unshakable in one's determination 8 are fixed on moving axis 9 lower end, and return spring 10 is fixed in the middle part of moving axis 9, and moving contact 7 is arranged on moving axis 9 top; Stem 5 and fixed contact 6 are fixed into an entirety, are in directly over moving contact 7, two fixed contacts 6 corresponding two moving contact 7 contacts respectively.
Claims (3)
1. a back-off clamping type high-voltage DC contactor, comprise contactor main body (1), iron-clad (2), bracing frame (3) is provided with in described contactor main body, it is characterized in that: bracing frame (3) is fixed on iron-clad (2) inwall, bracing frame (3) height, lower than iron-clad (2), is provided with the back-off (4) of convex shape at iron-clad (2) a little more than the position of bracing frame (3).
2. back-off clamping type high-voltage DC contactor according to claim 1, is characterized in that: the protrusion direction of described back-off (4) is inside cavity direction.
3. back-off clamping type high-voltage DC contactor according to claim 1, is characterized in that: described contactor main body (1) also comprises stem (5), fixed contact (6), moving contact (7), (8) unshakable in one's determination, moving axis (9) and return spring (10); (8) unshakable in one's determination are fixed on moving axis (9) lower end, and return spring (10) is fixed on moving axis (9) middle part, and moving contact (7) is arranged on moving axis (9) top; Stem (5) and fixed contact (6) are fixed into an entirety, are in directly over moving contact (7), two fixed contacts (6) corresponding two moving contact (7) contacts respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529697.7U CN204155855U (en) | 2014-09-16 | 2014-09-16 | A kind of back-off clamping type high-voltage DC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529697.7U CN204155855U (en) | 2014-09-16 | 2014-09-16 | A kind of back-off clamping type high-voltage DC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204155855U true CN204155855U (en) | 2015-02-11 |
Family
ID=52513953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420529697.7U Active CN204155855U (en) | 2014-09-16 | 2014-09-16 | A kind of back-off clamping type high-voltage DC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204155855U (en) |
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2014
- 2014-09-16 CN CN201420529697.7U patent/CN204155855U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |