CN204348622U - A kind of contactor arc extinguishing structure - Google Patents
A kind of contactor arc extinguishing structure Download PDFInfo
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- CN204348622U CN204348622U CN201520017940.1U CN201520017940U CN204348622U CN 204348622 U CN204348622 U CN 204348622U CN 201520017940 U CN201520017940 U CN 201520017940U CN 204348622 U CN204348622 U CN 204348622U
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- arc extinguishing
- grid pieces
- contact
- extinguishing grid
- fixed contact
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Abstract
The utility model discloses a kind of contactor arc extinguishing structure, comprises moving contact, arc extinguishing grid pieces, fixed contact and run-on tab; Moving contact is arranged on contact and supports, contact support activities is arranged in the body; Arc extinguishing grid pieces is arranged in arc control device, and arc control device are arranged on the body; Fixed contact is arranged on the body, contact or separate, and run-on tab is arranged on fixed contact, be electrically connected with fixed contact with moving contact, and run-on tab extends to below arc extinguishing grid pieces; Arc extinguishing grid pieces is set to identical structure, uses one set of die to produce whole arc extinguishing grid pieces, and meanwhile, each one set of die of moving contact, fixed contact and run-on tab is produced.The utility model can strengthen arc quenching effect, and structure is simple and reduce production cost, and easy to assembly.
Description
Technical field
The utility model relates to contactor technical field, refers in particular to a kind of contactor arc extinguishing structure.
Background technology
In prior art, the contact support activities of contactor is arranged in the body, moving contact is installed in contact support, and fixed contact is fixedly mounted on the body.Contactor operationally, is moved up and down by moving contact and contacts closed with fixed contact or separate, operating circuit is switched on or switched off.
Described contact moves under being supported in the sucking action of hot-wire coil, moving contact is made to contact with fixed contact closed or separate, electric arc is produced in moment that is closed or that separate, electric arc directly impacts to be supported at the body and contact, the body and contact support is made to be melted distortion or surface carbonation very soon, especially, when contact support uses common non-high-temperature resistant plastics, it is melted distortion or surface carbonation speed is faster, shortens the useful life of contactor.
Therefore, usually on the body, install arc control device, in arc control device, install arc-chute, then use arc extinguishing structure electric arc to be caused arc-chute and carry out arc extinguishing, this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of contactor arc extinguishing structure, and to strengthen arc quenching effect, structure is simple and reduce production cost, and easy to assembly.
For reaching above-mentioned purpose, solution of the present utility model is:
A kind of contactor arc extinguishing structure, comprises moving contact, arc extinguishing grid pieces, fixed contact and run-on tab; Moving contact is arranged on contact and supports, contact support activities is arranged in the body; Arc extinguishing grid pieces is arranged in arc control device, and arc control device are arranged on the body; Fixed contact is arranged on the body, contact or separate, and run-on tab is arranged on fixed contact, be electrically connected with fixed contact with moving contact, and run-on tab extends to below arc extinguishing grid pieces; Arc extinguishing grid pieces is set to identical structure, uses one set of die to produce whole arc extinguishing grid pieces, and meanwhile, each one set of die of moving contact, fixed contact and run-on tab is produced.
Further, described run-on tab comprises installation portion, horizontal part and vertical portion, installation portion is fixedly mounted on fixed contact, horizontal part is connected with installation portion, vertical portion is connected with horizontal part, horizontal position is below arc extinguishing grid pieces, and vertical portion is positioned at arc extinguishing grid pieces sidepiece, and horizontal part and vertical portion are by semiclosed for arc extinguishing grid pieces encirclement.
Further, described fixed contact is set to " J " type fixed contact, and described " J " type fixed contact is structure as a whole.
Further, described moving contact contacts one end and arranges striking lead angle with contact head, described striking lead angle and arc extinguishing grid pieces vicinity.
Further, upwards, radian is the body dorsad towards arc control device for the radian of described striking lead angle.
Further, described arc control device are provided with slot, and arc extinguishing grid pieces is provided with at least one lug boss, and lug boss radial direction is arranged, and arc extinguishing grid pieces extrudes by the elasticity of lug boss and slot and is installed in slot.
Further, described arc extinguishing grid pieces arranges two lug bosses with one end, and described two lug bosses are crisscross arranged, and protruding direction is contrary.
After adopting such scheme, the utility model fixed contact is arranged on the body, and contact with moving contact or separate, and run-on tab is arranged on fixed contact, be electrically connected with fixed contact, run-on tab extends to below arc extinguishing grid pieces.Run-on tab is when fixed contact to contact with moving contact or separates, and produce induced field, electric arc is guided to arc extinguishing grid pieces by this induced field, makes electric arc contact contact away from fixed contact with moving contact, and reduction electric arc is to the scaling loss contacting contact; Meanwhile, reduce the scaling loss that the body and contact are supported, enhance product performance, and structure simply reduces production cost.
Meanwhile, arc extinguishing grid pieces is set to identical structure, uses one set of die can produce whole arc extinguishing grid pieces, make, the utility model only needs four molds to produce, i.e. each one set of die of moving contact, arc extinguishing grid pieces, fixed contact and run-on tab, thus saves production cost.
Run-on tab horizontal position is below arc extinguishing grid pieces, and vertical portion is positioned at arc extinguishing grid pieces sidepiece, and horizontal part and vertical portion are by semiclosed for arc extinguishing grid pieces encirclement, and this structure makes striking effect better, electric arc all can be caused arc extinguishing grid pieces.
Described fixed contact is set to " J " type fixed contact, and is structure as a whole, and simplifies static contact structure, reduces production cost.
Described moving contact contacts one end and arranges striking lead angle with contact head, described striking lead angle and arc extinguishing grid pieces vicinity, electric arc causes in arc extinguishing grid pieces by this striking lead angle, strengthens striking effect further.
Described arc control device are provided with slot, and arc extinguishing grid pieces is provided with at least one lug boss, and arc extinguishing grid pieces extrudes by the elasticity of lug boss and slot and is installed in slot, and arc extinguishing grid pieces is installed without the need to using extra fixture, simplified structure, cost-saving.
Accompanying drawing explanation
Fig. 1 is end view of the present utility model;
Fig. 2 is the cutaway view in Fig. 1 C-C direction;
Fig. 3 is electrical block diagram of the present utility model;
Fig. 4 is the structural representation that the utility model arc control device and arc extinguishing grid pieces assemble;
Fig. 5 a is the perspective view of the utility model arc extinguishing grid pieces;
Fig. 5 b is the end view of the utility model arc extinguishing grid pieces;
Fig. 5 c is the vertical view of the utility model arc extinguishing grid pieces.
Label declaration
Moving contact 1 contact 11
Striking lead angle 12 arc extinguishing grid pieces 2
Lug boss 21 fixed contact 3
Contact 31 run-on tab 4
Installation portion 41 horizontal part 42
Vertical portion 43 contact supports 5
The body 6 arc control device 7
Slot 71 cover cap 8.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in detail.
Consult shown in Fig. 1 to Fig. 5 c, a kind of contactor arc extinguishing structure that the utility model discloses, comprise moving contact 1, arc extinguishing grid pieces 2, fixed contact 3 and run-on tab 4.
Moving contact 1 is arranged on contact and supports that on 5, contact support 5 is movably arranged in the body 6; Arc extinguishing grid pieces 2 is arranged in arc control device 7, and arc control device 7 are arranged on the body 6, usually on arc control device 7, are provided with cover cap 8.
Fixed contact 3 is arranged on the body 6, contact or separate, and run-on tab 4 is arranged on fixed contact 3 with moving contact 1, can be screwed, and is electrically connected with fixed contact 3, and run-on tab 4 extends to below arc extinguishing grid pieces 2.
Arc extinguishing grid pieces 2 is set to identical structure, one set of die is used to produce whole arc extinguishing grid pieces 2, simultaneously, the each one set of die of moving contact 1, fixed contact 3 and run-on tab 4 is produced, the utility model only needs four molds to produce, the i.e. each one set of die of moving contact, arc extinguishing grid pieces, fixed contact and run-on tab, thus save production cost.
Run-on tab 4 is when fixed contact 3 contacts with moving contact 1 or separates, produce induced field, electric arc is guided to arc extinguishing grid pieces 2 by this induced field, electric arc is made to contact contact (31,11) away from fixed contact 3 with moving contact 1, be double breaking points dynamic/static contact in the present embodiment, reduce the scaling loss of electric arc to contact contact (31,11); Meanwhile, reduce the scaling loss to the body 6 and contact support 5, enhance product performance, and structure simply reduces production cost.
In the present embodiment, described run-on tab 4 comprises installation portion 41, horizontal part 42 and vertical portion 43, installation portion 41 is fixedly mounted on fixed contact 3, horizontal part 42 is connected with installation portion 41, and vertical portion 43 is connected with horizontal part 42, and horizontal part 42 is positioned at below arc extinguishing grid pieces 2, and vertical portion 43 is positioned at arc extinguishing grid pieces 2 sidepiece, horizontal part 42 and vertical portion 43 are by semiclosed for arc extinguishing grid pieces 2 encirclement, and this structure makes striking effect better, electric arc all can be caused arc extinguishing grid pieces 2.
Described fixed contact 3 is set to " J " type fixed contact, and described " J " type fixed contact is structure as a whole, and simplifies fixed contact 3 structure, reduces production cost.
Described moving contact 1 contacts one end with fixed contact 3 and arranges striking lead angle 12, and described striking lead angle 12 is contiguous with arc extinguishing grid pieces 2.Upwards, radian is the body 6 dorsad towards arc control device 7 for the radian of described striking lead angle 12, and namely moving contact 1 two ends are toward upwarping, and electric arc causes in arc extinguishing grid pieces 2 by this striking lead angle 12, strengthen striking effect further.
As shown in Fig. 4 to Fig. 5 c, described arc control device 7 are provided with slot 71, arc extinguishing grid pieces 2 is provided with at least one lug boss 21, lug boss 21 radial direction is arranged, arc extinguishing grid pieces 2 to extrude with the elasticity of slot 71 by lug boss 21 and is installed in slot 71, arc extinguishing grid pieces 2 is made to install without the need to using extra fixture, simplified structure, cost-saving.
For making arc extinguishing grid pieces 2 comparatively stable, described arc extinguishing grid pieces 2 arranges two lug bosses 21 with one end, and described two lug bosses 21 are crisscross arranged, and protruding direction is contrary.Meanwhile, described multiple arc extinguishing grid pieces 2 is set to identical structure, uses a mould can produce whole arc extinguishing grid pieces 2, saves production cost.
The foregoing is only preferred embodiment of the present utility model, not to the restriction of this case design, all equivalent variations done according to the design key of this case, all fall into the protection range of this case.
Claims (7)
1. a contactor arc extinguishing structure, is characterized in that: comprise moving contact, arc extinguishing grid pieces, fixed contact and run-on tab; Moving contact is arranged on contact and supports, contact support activities is arranged in the body; Arc extinguishing grid pieces is arranged in arc control device, and arc control device are arranged on the body; Fixed contact is arranged on the body, contact or separate, and run-on tab is arranged on fixed contact, be electrically connected with fixed contact with moving contact, and run-on tab extends to below arc extinguishing grid pieces; Arc extinguishing grid pieces is set to identical structure, uses one set of die to produce whole arc extinguishing grid pieces, and meanwhile, each one set of die of moving contact, fixed contact and run-on tab is produced.
2. a kind of contactor arc extinguishing structure as claimed in claim 1, it is characterized in that: described run-on tab comprises installation portion, horizontal part and vertical portion, installation portion is fixedly mounted on fixed contact, horizontal part is connected with installation portion, vertical portion is connected with horizontal part, horizontal position is below arc extinguishing grid pieces, and vertical portion is positioned at arc extinguishing grid pieces sidepiece, and horizontal part and vertical portion are by semiclosed for arc extinguishing grid pieces encirclement.
3. a kind of contactor arc extinguishing structure as claimed in claim 1, is characterized in that: described fixed contact is set to " J " type fixed contact, and described " J " type fixed contact is structure as a whole.
4. a kind of contactor arc extinguishing structure as claimed in claim 1, is characterized in that: described moving contact contacts one end and arranges striking lead angle with contact head, described striking lead angle and arc extinguishing grid pieces vicinity.
5. a kind of contactor arc extinguishing structure as claimed in claim 4, is characterized in that: upwards, radian is the body dorsad towards arc control device for the radian of described striking lead angle.
6. a kind of contactor arc extinguishing structure as described in any one of claim 1 to 5, it is characterized in that: described arc control device are provided with slot, arc extinguishing grid pieces is provided with at least one lug boss, and lug boss radial direction is arranged, and arc extinguishing grid pieces extrudes by the elasticity of lug boss and slot and is installed in slot.
7. a kind of contactor arc extinguishing structure as claimed in claim 6, is characterized in that: described arc extinguishing grid pieces arranges two lug bosses with one end, and described two lug bosses are crisscross arranged, and protruding direction is contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017940.1U CN204348622U (en) | 2015-01-12 | 2015-01-12 | A kind of contactor arc extinguishing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017940.1U CN204348622U (en) | 2015-01-12 | 2015-01-12 | A kind of contactor arc extinguishing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204348622U true CN204348622U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520017940.1U Active CN204348622U (en) | 2015-01-12 | 2015-01-12 | A kind of contactor arc extinguishing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204348622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409566A (en) * | 2016-12-02 | 2017-02-15 | 雷顿电气科技有限公司 | Arc-extinguishing device of control and protection switch |
| CN109036905A (en) * | 2018-08-02 | 2018-12-18 | 安徽森力汽车电子有限公司 | A kind of novel arc extinguishing grid and its arc-chutes |
-
2015
- 2015-01-12 CN CN201520017940.1U patent/CN204348622U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409566A (en) * | 2016-12-02 | 2017-02-15 | 雷顿电气科技有限公司 | Arc-extinguishing device of control and protection switch |
| CN109036905A (en) * | 2018-08-02 | 2018-12-18 | 安徽森力汽车电子有限公司 | A kind of novel arc extinguishing grid and its arc-chutes |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |