CN204155853U - A kind of anticollision high-voltage DC contactor - Google Patents
A kind of anticollision high-voltage DC contactor Download PDFInfo
- Publication number
- CN204155853U CN204155853U CN201420528207.1U CN201420528207U CN204155853U CN 204155853 U CN204155853 U CN 204155853U CN 201420528207 U CN201420528207 U CN 201420528207U CN 204155853 U CN204155853 U CN 204155853U
- Authority
- CN
- China
- Prior art keywords
- contactor
- voltage
- fixed
- contact
- upper cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000008393 encapsulating agent Substances 0.000 claims abstract description 14
- 229920006335 epoxy glue Polymers 0.000 claims abstract description 6
- 238000005336 cracking Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A kind of anticollision high-voltage DC contactor, comprise contactor main body (1), encapsulant (3), is characterized in that: outer wall (5) top of described contactor main body (1) is provided with a upper cover (2) and matches.The epoxy glue that upper cover (2) can protect fragility easily to split, prevents the extraneous cracking that clashes into from causing air-tightness to lose efficacy.
Description
Technical field
The utility model relates to a kind of contactor, particularly a kind of anticollision 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.Although the encapsulant that existing high-voltage DC contactor uses possesses good insulating properties, because material is subject to clashing into easily chipping, have impact on the air-tightness of device inside, hidden danger is caused to the use of contactor.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of anticollision high-voltage DC contactor, while can playing and effectively playing arc extinguishing effect, and also can available protecting encapsulant.
The utility model for solving the problems of the technologies described above adopted technical scheme is:
A kind of anticollision high-voltage DC contactor, comprises contactor main body, encapsulant, it is characterized in that: the outer wall top of described contactor main body is provided with a upper cover and matches.
Described contactor main body comprises stem, fixed contact, moving contact, iron core, moving axis and return spring.Iron core is fixed on moving axis lower end, and return spring is fixed in the middle part of moving axis, and moving contact is arranged on moving axis top; Stem and fixed contact are fixed into an entirety, are in directly over moving contact, two fixed contacts corresponding two moving contact contacts respectively.
Described upper cover shape is identical with outer wall top cross sectional form.
Described contactor inside is provided with bracing frame, and the cavity formed with upper cover, outer wall is built with encapsulant.
Described encapsulant is epoxy glue.
The technique effect of the utility model employing achieved by technique scheme is:
The encapsulant that contactor adopts is epoxy glue, and the good electrical insulation property had effectively can ensure arc extinguishing, the epoxy glue that the upper cover of increase can protect fragility easily to split, and prevents the extraneous cracking that clashes into from causing air-tightness to lose efficacy.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further
Fig. 1 is structural representation of the present utility model
Wherein, 1-contactor main body, 2-upper cover, 3-encapsulant, 4-bracing frame, 5-outer wall, 6-stem, 7-fixed contact, 8-moving contact, 9-is unshakable in one's determination, 10-moving axis, 11-return spring
Embodiment
As shown in Figure 1 be a kind of anticollision high-voltage DC contactor; comprise contactor main body 1, encapsulant 3, outer wall 5 top of contactor main body 1 is provided with a upper cover 2 and matches; the epoxy glue that the upper cover increased can protect fragility easily to split, prevents the extraneous cracking that clashes into from causing air-tightness to lose efficacy.。
Contactor main body 1 comprises stem 6, fixed contact 7, moving contact 8, iron core 9, moving axis 10 and return spring 11.Unshakable in one's determination) be fixed on moving axis 10 lower end, return spring 11 is fixed in the middle part of moving axis 10, and moving contact 8 is arranged on moving axis 10 top; Stem 6 and fixed contact 7 are fixed into an entirety, are in directly over moving contact 8, two fixed contacts 7 corresponding two moving contact 8 contacts respectively.
It is easily chipping that encapsulant 3 due to contactor is subject to shock, affects sealing effectiveness.On the top of contactor, use hard metal material to make the upper cover 2 identical with its shape according to top cross sectional form, after encapsulant 3 loads, upper cover 2 and the appearance 5 of contactor are welded together sealing.
Claims (5)
1. an anticollision high-voltage DC contactor, comprise contactor main body (1), encapsulant (3), is characterized in that: outer wall (5) top of described contactor main body (1) is provided with a upper cover (2) and matches.
2. anticollision high-voltage DC contactor according to claim 1, is characterized in that: described contactor main body (1) comprises stem (6), fixed contact (7), moving contact (8), (9) unshakable in one's determination, moving axis (10) and return spring (11); (9) unshakable in one's determination are fixed on moving axis (10) lower end, and return spring (11) is fixed on moving axis (10) middle part, and moving contact (8) is arranged on moving axis (10) top; Stem (6) and fixed contact (7) are fixed into an entirety, are in directly over moving contact (8), two fixed contacts (7) corresponding two moving contact (8) contacts respectively.
3. anticollision high-voltage DC contactor according to claim 1, is characterized in that: described upper cover (2) shape is identical with outer wall (5) top cross sectional form.
4. the anticollision high-voltage DC contactor according to claim 1 or 3, it is characterized in that: described contactor inside is provided with bracing frame (4), the cavity formed with upper cover (2), outer wall (5) is built with encapsulant (3).
5. anticollision high-voltage DC contactor according to claim 1, is characterized in that: described encapsulant (3) is epoxy glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420528207.1U CN204155853U (en) | 2014-09-15 | 2014-09-15 | A kind of anticollision high-voltage DC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420528207.1U CN204155853U (en) | 2014-09-15 | 2014-09-15 | A kind of anticollision high-voltage DC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204155853U true CN204155853U (en) | 2015-02-11 |
Family
ID=52513951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420528207.1U Expired - Lifetime CN204155853U (en) | 2014-09-15 | 2014-09-15 | A kind of anticollision high-voltage DC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204155853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719907A (en) * | 2016-03-31 | 2016-06-29 | 浙江众信新能源科技股份有限公司 | High-voltage DC relay |
| CN112071702A (en) * | 2020-09-04 | 2020-12-11 | 陈金枢 | Ceramic high-voltage direct-current contactor |
-
2014
- 2014-09-15 CN CN201420528207.1U patent/CN204155853U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719907A (en) * | 2016-03-31 | 2016-06-29 | 浙江众信新能源科技股份有限公司 | High-voltage DC relay |
| CN112071702A (en) * | 2020-09-04 | 2020-12-11 | 陈金枢 | Ceramic high-voltage direct-current contactor |
| CN112071702B (en) * | 2020-09-04 | 2022-11-25 | 陈金枢 | Ceramic high-voltage direct-current contactor |
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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: 20150211 |