CN203910684U - Electromagnetic contactor with magnetic blast arc extinguishing - Google Patents
Electromagnetic contactor with magnetic blast arc extinguishing Download PDFInfo
- Publication number
- CN203910684U CN203910684U CN201420303776.6U CN201420303776U CN203910684U CN 203910684 U CN203910684 U CN 203910684U CN 201420303776 U CN201420303776 U CN 201420303776U CN 203910684 U CN203910684 U CN 203910684U
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- arc
- contact
- fixed contact
- electromagnetic contactor
- contactor
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Abstract
The utility model discloses an electromagnetic contactor with magnetic blast arc extinguishing, which comprises an arc-extinguishing coil, a static contact and an arc dividing static contact, wherein the arc extinguishing coil is arranged inside the contactor, the static contact and the arc dividing static contact are arranged at the outer side of the arc extinguishing coil, the internal part of the contactor is further provided with a moving contact which is matched with the static contact and the arc dividing contact and carries out splitting and combining in a segmented mode. According to the utility model, the electromagnetic contactor applies a reliable design, that is, a redundant design. The electromagnetic contactor with magnetic blast arc extinguishing integrates such three arc-extinguishing modes as electrodynamic arc extinguishing, magnetic blast arc extinguishing and ceramic arc-extinguishing, thereby improving the arc extinguishing reliability. The electromagnetic contactor adopts a floating arc dividing static contact assembly and the segmented splitting-combining moving contact in order to realize the mode of magnetic blast arc extinguishing, thereby ensuring the arc extinguishing coil to operate effectively when the electromagnetic contactor breaks high current, achieving an effect of arc blowing, thus preventing the contacts from being burned, and ensuring normal operations of the electromagnetic contactor.
Description
Technical field
The utility model belongs to arc-control device technical field, relates to a kind of electromagnetic contactor, is specifically related to a kind of electromagnetic contactor with magnetic quenching.
Background technology
At present, when magnetic quenching function exists electromagnetic contactor disjunction, Petersen coil can not obtain electricly, can not bring into play arc blowing function, causes that contact burns, contact adhesion, causes the risk that locomotive circuit lost efficacy, and has brought hidden danger to the safe operation of locomotive.The low-voltage electrical apparatus of the large electric current of electromagnetic contactor break-make, the problem that produces electric arc is more outstanding, and therefore, it is particularly important that arc-control device just seems.
Utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provide one can improve single contactor, and the reliability of whole electrical system the electromagnetic contactor with magnetic quenching of guaranteeing magnetic blow-out function that can increase the service life, this contactor is applicable to HXD1C locomotive, subway alternating current-direct current control loop and other electric automatization control appliances.
For achieving the above object, the technical solution adopted in the utility model is: comprise and be arranged on the Petersen coil of contactor inside and be arranged on fixed contact and point arc fixed contact in Petersen coil outside, contactor inside is also provided with matches with fixed contact and point arc fixed contact and the moving contact of segmentation deciliter.
The outside of described moving contact, fixed contact and point arc fixed contact is also provided with ceramic arc suppressing cover; Ceramic arc suppressing cover is fixedly mounted on contactor housing.
Described point arc fixed contact comprises point arc fixed contact matrix and is arranged on point arc fixed contact matrix below for point arc fixed contact matrix jack-up being formed to the shell fragment of floating type point of arc fixed contact; Divide the front end of arc fixed contact matrix to be provided with arc contact.
Described moving contact comprises moving contact matrix, is provided with respectively the first movable contact spring and the second movable contact spring that match, realize segmentation deciliter with arc contact and fixed contact on moving contact matrix.
Compared with prior art, the utlity model has following beneficial effect:
The utility model is by adopting the moving contact form of floating type point of arc static contact component and segmentation deciliter, guarantee that contactor magnetic quenching reliable in function realizes, thereby while avoiding electromagnetic contactor disjunction, Petersen coil can not obtain electric, can not bring into play arc blowing function, cause that contact burns, contact adhesion, cause the risk that locomotive circuit lost efficacy, improved the reliability of single contactor and whole locomotive electric cad system system, thereby it is broken to be to overcome locomotive that prior art causes unnecessary maintenance and machine.Electromagnetic contactor has been applied reliability design, i.e. Redundancy Design in the utility model; Three kinds of arc quenching methods of electric power arc extinguishing, magnetic quenching and ceramic arc extinguishing, in one, have been improved to the reliability of arc extinguishing.
Further, the utility model is for realizing magnetic quenching mode, adopts the moving contact form of floating type point of arc static contact component and segmentation deciliter.Thereby Petersen coil is effectively worked while ensureing electromagnetic contactor disjunction large electric current, reaches arc blowing function, and then avoids contact to burn, guarantee that electromagnetic contactor normally works.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the structural representation that the utility model divides arc fixed contact;
Fig. 3 is the structural representation of the utility model moving contact.
Wherein, 1 is moving contact; 1-1 is the first movable contact spring; 1-2 is the second movable contact spring; 1-3 is moving contact matrix; 2 is fixed contact; 3 is a point arc fixed contact; 3-1 is arc contact; 3-2 is a point arc fixed contact matrix; 3-3 is shell fragment; 4 is Petersen coil; 5 is ceramic arc suppressing cover.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1, the utility model comprises the fixed contact 2 and point arc fixed contact 3 that are arranged on the Petersen coil 4 of contactor inside and are arranged on Petersen coil 4 outsides, and contactor inside is also provided with matches with fixed contact 2 and point arc fixed contact 3 and the moving contact 1 of segmentation deciliter.As shown in Figure 2, divide arc fixed contact 3 to comprise point arc fixed contact matrix 3-2 and be arranged on point arc fixed contact matrix 3-2 below for point arc fixed contact matrix 3-2 jack-up being formed to the shell fragment 3-3 of floating type point of arc fixed contact; Divide the front end of arc fixed contact matrix 3-2 to be provided with arc contact 3-1.As shown in Figure 3, moving contact 1 comprises moving contact matrix 1-3, is provided with respectively the first movable contact spring 1-1 and the second movable contact spring 1-2 that match, realize segmentation deciliter with arc contact 3-1 and fixed contact 2 on moving contact matrix 1-3.The outside of moving contact 1, fixed contact 2 and point arc fixed contact 3 is also provided with ceramic arc suppressing cover 5; Ceramic arc suppressing cover 5 is fixedly mounted on contactor housing.
Principle of the present utility model and the course of work:
The utility model contact apparatus adopts the moving contact form of floating type point of arc static contact component and segmentation deciliter, in the time that contactor is closed, the movable contact spring 1 of moving contact first contacts with the arc contact of point arc static contact component, Petersen coil obtains electric, Petersen coil starts arc blow-out, after the movable contact spring 2 of moving contact contacts with fixed contact, contactor completes energising; In the time of contactor disjunction, because the movable contact spring 1 of moving contact contacts with the arc contact of point arc fixed contact, so Petersen coil is switched on always, Petersen coil is arc blow-out all the time, after the movable contact spring 2 of moving contact disconnects with fixed contact, the movable contact spring 1 of moving contact and the arc contact of point arc fixed contact disconnect, and contactor completes power-off.Such structure guarantees that electromagnetic contactor is in the time of the low-voltage electrical apparatus of the large electric current of break-make, the positive often-have-electricity of Petersen coil, performance arc blowing function, thereby reliably working while ensureing contactor disjunction.
Above content is only explanation technological thought of the present utility model; can not limit protection range of the present utility model with this; every technological thought according to the utility model proposes, any change of doing on technical scheme basis, within all falling into the protection range of the utility model claims.
Claims (4)
1. the electromagnetic contactor with magnetic quenching, it is characterized in that: comprise and be arranged on the Petersen coil (4) of contactor inside and be arranged on fixed contact (2) and point arc fixed contact (3) in Petersen coil (4) outside, contactor inside is also provided with fixed contact (2) and divides arc fixed contact (3) to match and the moving contact (1) of segmentation deciliter.
2. the electromagnetic contactor with magnetic quenching according to claim 1, is characterized in that: the outside of described moving contact (1), fixed contact (2) and point arc fixed contact (3) is also provided with ceramic arc suppressing cover (5); Ceramic arc suppressing cover (5) is fixedly mounted on contactor housing.
3. the electromagnetic contactor with magnetic quenching according to claim 1 and 2, is characterized in that: a described point arc fixed contact (3) comprises point arc fixed contact matrix (3-2) and is arranged on point arc fixed contact matrix (3-2) below for dividing arc fixed contact matrix (3-2) jack-up to form the shell fragment (3-3) of floating type point of arc fixed contact; Divide the front end of arc fixed contact matrix (3-2) to be provided with arc contact (3-1).
4. the electromagnetic contactor with magnetic quenching according to claim 3, it is characterized in that: described moving contact (1) comprises moving contact matrix (1-3), on moving contact matrix (1-3), be provided with respectively the first movable contact spring (1-1) and the second movable contact spring (1-2) that match, realize segmentation deciliter with arc contact (3-1) and fixed contact (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420303776.6U CN203910684U (en) | 2014-06-09 | 2014-06-09 | Electromagnetic contactor with magnetic blast arc extinguishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420303776.6U CN203910684U (en) | 2014-06-09 | 2014-06-09 | Electromagnetic contactor with magnetic blast arc extinguishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910684U true CN203910684U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420303776.6U Active CN203910684U (en) | 2014-06-09 | 2014-06-09 | Electromagnetic contactor with magnetic blast arc extinguishing |
Country Status (1)
| Country | Link |
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| CN (1) | CN203910684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098477A (en) * | 2016-08-15 | 2016-11-09 | 贵州天义电器有限责任公司 | A kind of high-voltage DC contactor of band magnetic coil arc extinguishing |
-
2014
- 2014-06-09 CN CN201420303776.6U patent/CN203910684U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098477A (en) * | 2016-08-15 | 2016-11-09 | 贵州天义电器有限责任公司 | A kind of high-voltage DC contactor of band magnetic coil arc extinguishing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |