CN202373524U - Arc extinguishing system of contacts of direct-current contactors - Google Patents
Arc extinguishing system of contacts of direct-current contactors Download PDFInfo
- Publication number
- CN202373524U CN202373524U CN2011205167756U CN201120516775U CN202373524U CN 202373524 U CN202373524 U CN 202373524U CN 2011205167756 U CN2011205167756 U CN 2011205167756U CN 201120516775 U CN201120516775 U CN 201120516775U CN 202373524 U CN202373524 U CN 202373524U
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- contactor
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Abstract
The utility model discloses an arc extinguishing system of contacts of direct-current contactors, comprising a reversing contactor, wherein the reversing contactor consists of a first contactor, a fourth contactor, a second contactor and a third contactor; the first contactor and the fourth contactor are connected in series; the second contactor and the third contactor are connected in series; the second contactor and the third contactor are connected with the first contactor and the fourth contactor in parallel; when the first contactor and the third contactor are switched on, the second contactor and the fourth contactor are switched off; and when the first contactor and the third contactor are switched on, the second contactor and the fourth contactor are switched off. The arc extinguishing system disclosed by the utility model has the advantages that after the scheme is adopted, since the control system can be switched off and switched on by controlling the contactors according to a certain order, the arc discharge phenomenon in ignition is greatly reduced, the service life of the contacts of the contactors is prolonged and the effect is better.
Description
Technical field
The utility model relates to a kind of probe of contactor arc quenching system.Particularly relate to high voltage, big electric current, high power DC probe of contactor arc quenching system.
Background technology
D.C. contactor is mainly used in motor torque and the switching-over in the speed control and the on-off action of forklift-walking control, Sightseeing Trolley and electric trailer in Motor Control Field.Contactor can produce electric spark electric arc when belt current is worked, the major injury probe of contactor influences contactor useful life.Traditional arc-suppressing method is many to carry out the contactor arc extinguishing with arc-control device, arc control device, but because of cost is big, complex structure, and reason such as arc quenching effect is undesirable is difficult to large-scale promotion.
The utility model content
The utility model provides a kind of electronically controlled D.C. contactor arc quenching system, to overcome the D.C. contactor problem that contact that arcing causes burns out that occurs in the course of the work striking sparks.
It is following that the utility model solves the problems of the technologies described above the technical scheme of being taked:
A kind of D.C. contactor contact arc-extinguishing system comprises directional contactor, wherein; Said directional contactor is made up of the first and the 4th contactor of series connection and the second and the 3rd contactor of series connection, wherein; The said second and the 3rd contactor is parallelly connected with said the first, the 4th contactor; Wherein, when said first contactor and the 3rd contactor closure, said second contactor and the 4th contactor break off; When said first contactor and the disconnection of the 3rd contactor, said second contactor and the 4th contactor are closed.
The utility model has been taked after the such scheme, because control system can be through the disconnection and the closure of certain sequential control contactor.Thereby significantly reduced sparking arcing phenomenon, improved probe of contactor useful life, had effect preferably.
Description of drawings
Below in conjunction with accompanying drawing the utility model is carried out detailed description, so that the above-mentioned advantage of the utility model is clearer and more definite.
Fig. 1 is the utility model D.C. contactor contact arc-extinguishing schematic representation of apparatus;
Fig. 2 is the total elementary diagram of the system of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is carried out detailed description.
Wherein, Fig. 1 is the utility model D.C. contactor contact arc-extinguishing schematic representation of apparatus; As shown in Figure 1, said D.C. contactor contact arc-extinguishing system comprises directional contactor; Wherein, said directional contactor is made up of the first contactor a of series connection and the second contactor b and the 3rd contactor c of the 4th contactor d and series connection; Wherein, said second contactor and the 3rd contactor are parallelly connected with said the first, the 4th contactor, wherein; When said first contactor and the 3rd contactor closure, said second contactor and the 4th contactor break off; When said first contactor and the disconnection of the 3rd contactor, said second contactor and the 4th contactor are closed.
Specifically, when carrying out switch operation, contactor a, c are one group, and contactor b, d are another group.When contactor a, c closure, contactor b, d break off.Motor is pressed certain orientation and is rotated; When contactor b, d closure, contactor a, c break off.Motor rotates by its rightabout.
Guarantee that no current flows through in the electric motor loop during contactor action.Promptly will carry out switch operation, when breaking off contactor, the copped wave pipe is turn-offed in program running earlier, makes motor carry out afterflow through fly-wheel diode, and program is being sent open command to contactor then; Carry out switch operation, during closed contactor, program control copped wave pipe is in off-state, and the control contactor adhesive.Wait for 200ms, after the complete adhesive of contactor, open the copped wave pipe.When pressing the action of said sequence control contactor,, do not have electric arc during the operation contactor and produce because no current flows through in the loop.
Fig. 2 is the total elementary diagram of the system of the utility model.
Wherein, according to above-mentioned sketch map 2, in the time will breaking off contactor a, c, program is turn-offed the copped wave pipe earlier, lets motor carry out afterflow through the fly-wheel diode of control system, then contactor a, c is broken off control; When closed contactor b, d, program running makes the copped wave pipe be in off-state earlier, orders contactor b, d closure then, and time-delay 200ms treats to open the copped wave pipe again after contactor b, the complete closure of d.In the contactor course of action, in the loop all the time no current flow through, this has just been avoided sparking arcing phenomenon.
It should be noted that; Above-mentioned specific embodiment only is exemplary; Under the above-mentioned instruction of the utility model, those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improve or distortion drops in the protection range of the utility model.
It will be understood by those skilled in the art that top specific descriptions just in order to explain the purpose of the utility model, are not to be used to limit the utility model.The protection range of the utility model is limited claim and equivalent thereof.
Claims (1)
1. a D.C. contactor contact arc-extinguishing system is characterized in that, comprises directional contactor; Wherein, said directional contactor is made up of the first and the 4th contactor of series connection and the second and the 3rd contactor of series connection; Wherein, the said second and the 3rd contactor is parallelly connected with said the first, the 4th contactor, wherein; When said first contactor and the 3rd contactor closure, said second contactor and the 4th contactor break off; When said first contactor and the disconnection of the 3rd contactor, said second contactor and the 4th contactor are closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205167756U CN202373524U (en) | 2011-12-12 | 2011-12-12 | Arc extinguishing system of contacts of direct-current contactors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205167756U CN202373524U (en) | 2011-12-12 | 2011-12-12 | Arc extinguishing system of contacts of direct-current contactors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202373524U true CN202373524U (en) | 2012-08-08 |
Family
ID=46597218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205167756U Expired - Fee Related CN202373524U (en) | 2011-12-12 | 2011-12-12 | Arc extinguishing system of contacts of direct-current contactors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202373524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265248A (en) * | 2019-07-18 | 2019-09-20 | 科都电气有限公司 | The commutation brake gear and direct current electric power tools switch of direct current electric power tools switch |
-
2011
- 2011-12-12 CN CN2011205167756U patent/CN202373524U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265248A (en) * | 2019-07-18 | 2019-09-20 | 科都电气有限公司 | The commutation brake gear and direct current electric power tools switch of direct current electric power tools switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160419 Address after: D block No. 109 at the beginning of Yuan Science and Technology Park A New Industrial Park building 710119 Station Road in Shaanxi province Xi'an City three Patentee after: XI'AN HAIMEN ENVIRONMENTAL PROTECTION POWER TECHNOLOGY CO., LTD. Address before: D block No. 109 at the beginning of Yuan Science and Technology Park A New Industrial Park building 710119 Station Road in Shaanxi province Xi'an City three Patentee before: Xi'an Himen Technology Development Co., Ltd. |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: XI'AN HAIMEN ENVIRONMENTAL PROTECTION POWER TECHNOLOGY CO., LTD. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Xi'an Haimen Environmental Protection Power Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20181212 |