CN201498441U - Contactor contact automatic arc-extinguishing device - Google Patents
Contactor contact automatic arc-extinguishing device Download PDFInfo
- Publication number
- CN201498441U CN201498441U CN2009203081217U CN200920308121U CN201498441U CN 201498441 U CN201498441 U CN 201498441U CN 2009203081217 U CN2009203081217 U CN 2009203081217U CN 200920308121 U CN200920308121 U CN 200920308121U CN 201498441 U CN201498441 U CN 201498441U
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- contact
- fixed contact
- contactor
- conductive pole
- arc
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to the technical field of the contactor, and provides a contactor contact automatic arc-extinguishing device, which solves the problems that in the prior contactor arc-extinguishing way, the arc extinguishing is performed after the arc light is produced, and a favorable effect cannot be realized. The utility model adopts the technical scheme that: the contactor contact automatic arc-extinguishing device comprises a movable contact, a fixed contact, a current output end and a current input end, wherein the movable contact is connected with the current output end, and is characterized by also comprising an electrically-conductive post, an auxiliary contact and a blowout coil, the fixed contact is connected with the electrically-conductive post, the electrically-conductive post is connected with the current input end, the positive pole of the blowout coil is connected with the fixed contact, the negative pole of the blowout coil is connected with the auxiliary contact, the blowout coil is arranged on the electrically-conductive post, the negative pole of the blowout coil is close to the fixed contact, the positive pole of the blowout coil is close to the current input end, and when the movable contact is disconnected with the fixed contact, the auxiliary contact delays the disconnection with the movable contact. The contactor contact automatic arc-extinguishing device has the advantages that the service life of the contactor is prolonged, and the device can be applicable to different contactors.
Description
Technical field
The utility model relates to the contactor technology, particularly the technology of contacts of contactor arc extinguishing.
Background technology
Contactor carries in the Industry Control in a large number and uses, and contactor is used for the running of control appliance, again in the control procedure, contacts of contactor produces arc light, and contacts of contactor is burnt out, and reduces contactor useful life, and be easy to generate the contactor short circuit, make the equipment cisco unity malfunction of its control.If present employed contacts of contactor arc extinguishing is lived the arc light arc-chute and the magnetic cooking arc extinguishing that will produce, these two kinds of arc quenching methods all have shortcoming, mainly be to carry out arc extinguishing after arc light produces, contacts of contactor fusing at present burns out the solution that topmost problem does not obtain essence, existing contactor generally comprises main contact, main contact comprises moving contact, fixed contact, current output terminal and current input terminal, described moving contact is connected with current output terminal, described fixed contact is connected with current input terminal, by moving contact and fixed contact be connected and disconnection reaches energising and outage effect.
The utility model content
The purpose of this utility model is that to overcome present contactor arc quenching method all be to carry out arc extinguishing after arc light produces and the shortcoming that can not reach good result, provides a kind of contacts of contactor automatic arc-control device.
The utility model solves its technical problem, the technical scheme that adopts is, the automatic arc-control device of contacts of contactor, comprise moving contact, fixed contact, current output terminal and current input terminal, described moving contact is connected with current output terminal, it is characterized in that, also comprise conductive pole, auxiliary contact and demagnetization coil, described fixed contact is connected with conductive pole, conductive pole is connected with current input terminal, described demagnetization coil electrode is connected with fixed contact, demagnetization coil negative pole is connected with auxiliary contact, and described demagnetization coil is arranged on the conductive pole, and demagnetization coil negative pole is near fixed contact, the demagnetization coil electrode is near current input terminal, disconnects at moving contact and fixed contact that described auxiliary contact postpone and the moving contact disconnection when being connected;
Further, described conductive pole inner hollow, fixed contact is provided with and the corresponding hole of conductive pole inner hollow, and described auxiliary contact are arranged on conductive pole inside and give prominence to fixed contact by the hole on the fixed contact.
Concrete, described auxiliary contact comprise auxiliary contact and return spring, described auxiliary contact one distal process goes out fixed contact, the other end is positioned at conductive pole inside, described return spring one end is arranged on the bottom of conductive pole near current input terminal, and the other end is connected with the end that auxiliary contact is positioned at conductive pole inside.
The beneficial effects of the utility model are, utilization is arranged on demagnetization coil and the auxiliary contact on the conductive pole, when the moment that fixed contact disconnects, auxiliary contact insert the demagnetization coil automatically, and the demagnetization coil produces an electromotive force opposite with main power supply, the off voltage of fixed contact is transferred on the demagnetization coil, thereby reduce fixed contact voltage, simultaneously, on the demagnetization coil, produce a magnetic field force opposite with the principal current direction, thereby reach the effect of automatic arc extinguishing, prolong contacts of contactor useful life.
Description of drawings
Fig. 1 is the structural representation of embodiment;
Fig. 2 is the longitudinal section schematic diagram of embodiment;
Wherein, 1 is moving contact, and 2 is fixed contact, and 3 is current output terminal, and 4 is current input terminal, and 5 is conductive pole, and 6 is auxiliary contact, and 7 is the demagnetization coil, 8 be on the fixed contact with the corresponding hole of conductive pole inner hollow, 9 is auxiliary contact, 10 is return spring.
Embodiment
Below in conjunction with drawings and Examples, describe the technical solution of the utility model in detail.
The utility model is connected fixed contact with conductive pole, conductive pole is connected with current input terminal, the demagnetization coil electrode is connected with fixed contact, demagnetization coil negative pole is connected with auxiliary contact, wherein, the demagnetization coil is arranged on the conductive pole, demagnetization coil negative pole is near fixed contact, the demagnetization coil electrode is near current input terminal, disconnect at moving contact and fixed contact that described auxiliary contact postpone and the moving contact disconnection when being connected, form a contactor like this, utilize demagnetization coil and auxiliary contact to reach the effect of automatic arc extinguishing.
Embodiment
These routine conductive pole 5 inner hollow, fixed contact 2 is provided with and the corresponding hole 8 of conductive pole 5 inner hollow, auxiliary contact 6 are arranged on conductive pole 5 holes 8 inner and that pass through on the fixed contact 2 and give prominence to fixed contacts 2, its structural representation such as Fig. 1, longitudinal section schematic diagram such as Fig. 2.
Owing to disconnect the purpose that auxiliary contact 6 needs delay and moving contact 1 disconnection when being connected just can reach the application at moving contact 1 and fixed contact 2, therefore these routine auxiliary contact 6 comprise auxiliary contact 9 and return spring 10, described auxiliary contact 6 one distal process go out fixed contact 2, the other end is positioned at conductive pole 5 inside, described return spring 10 1 ends are arranged on the bottom of conductive pole 5 near current input terminal 4, and the other end is connected with the end that auxiliary contact 9 is positioned at conductive pole 5 inside.
When fixed contact 2 is connected with moving contact 1, electric current directly flows to moving contact 1 from current input terminal 4 by conductive pole 5 and fixed contact 2, give current output terminal 3 from moving contact 1 stream again, auxiliary contact 9 is compressed into conductive pole 5 by moving contact 1, therefore compression of return spring 10, when the moment that fixed contact 2 and moving contact 1 disconnect, return spring 10 stretches and promotes auxiliary contact 9 outstanding fixed contacts 2, auxiliary contact 9 postpones to disconnect with moving contact 1 owing to give prominence to fixed contact 2, this moment, electric current flowed to fixed contact 2 from current input terminal 4 by conductive pole 5, give demagnetization coil 7 from fixed contact 2 streams again, flow to moving contact 1 again, produce a stronger electromagnetic field on the demagnetization coil 7 at this moment by flowing to auxiliary contact 9 behind the demagnetization coil 7, magnetic direction is opposite with the principal current direction, retract the electronics that produces arc light, fixed contact 2 is disconnected reliably, reach designing requirement.
Claims (3)
1. the automatic arc-control device of contacts of contactor, comprise moving contact (1), fixed contact (2), current output terminal (3) and current input terminal (4), described moving contact (1) is connected with current output terminal (3), it is characterized in that, also comprise conductive pole (5), auxiliary contact (6) and demagnetization coil (7), described fixed contact (2) is connected with conductive pole (5), conductive pole (5) is connected with current input terminal (4), described demagnetization coil (7) is anodal to be connected with fixed contact (2), demagnetization coil (7) negative pole is connected with auxiliary contact (6), described demagnetization coil (7) is arranged on the conductive pole (5), demagnetization coil (7) negative pole is near fixed contact (2), demagnetization coil (7) is anodal near current input terminal (4), disconnects at moving contact (1) and fixed contact (2) that described auxiliary contact (6) postpone and moving contact (1) disconnection when being connected.
2. according to the automatic arc-control device of the described contacts of contactor of claim 1, it is characterized in that, described conductive pole (5) inner hollow, fixed contact (2) is provided with and the corresponding hole of conductive pole (5) inner hollow (8), and described auxiliary contact (6) are arranged on conductive pole (5) hole (8) inner and that pass through on the fixed contact (2) and give prominence to fixed contact (2).
3. according to the automatic arc-control device of the described contacts of contactor of claim 2, it is characterized in that, described auxiliary contact (6) comprise auxiliary contact (9) and return spring (10), described auxiliary contact (9) one distal process go out fixed contact (2), the other end is positioned at conductive pole (5) inside, described return spring (10) one ends are arranged on the bottom of conductive pole (5) near current input terminal (4), and the other end is positioned at the inner end of conductive pole (10) with auxiliary contact (9) and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203081217U CN201498441U (en) | 2009-08-17 | 2009-08-17 | Contactor contact automatic arc-extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203081217U CN201498441U (en) | 2009-08-17 | 2009-08-17 | Contactor contact automatic arc-extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201498441U true CN201498441U (en) | 2010-06-02 |
Family
ID=42441642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203081217U Expired - Fee Related CN201498441U (en) | 2009-08-17 | 2009-08-17 | Contactor contact automatic arc-extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201498441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373809A (en) * | 2016-10-13 | 2017-02-01 | 余伟蓉 | Three-contact switch structure capable of eliminating arcing |
| CN111584308A (en) * | 2020-03-23 | 2020-08-25 | 中国航天时代电子有限公司 | Replaceable contact device |
-
2009
- 2009-08-17 CN CN2009203081217U patent/CN201498441U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373809A (en) * | 2016-10-13 | 2017-02-01 | 余伟蓉 | Three-contact switch structure capable of eliminating arcing |
| CN111584308A (en) * | 2020-03-23 | 2020-08-25 | 中国航天时代电子有限公司 | Replaceable contact device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20120817 |