CN207993778U - D.C. contactor is nonpolarity combined type arc-control device - Google Patents
D.C. contactor is nonpolarity combined type arc-control device Download PDFInfo
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- CN207993778U CN207993778U CN201820539751.4U CN201820539751U CN207993778U CN 207993778 U CN207993778 U CN 207993778U CN 201820539751 U CN201820539751 U CN 201820539751U CN 207993778 U CN207993778 U CN 207993778U
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- arc
- contactor
- moving contact
- contact
- nonpolarity
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Abstract
The utility model is related to D.C. contactors, the specifically nonpolarity combined type arc-control device of D.C. contactor, shell including sealing, it is provided with moving contact in the shell, it is provided with the static contact that can be respectively contacted with the moving contact both ends on the housing, it is provided with the insulating support for making two static contacts reliably insulate on the housing, it is respectively arranged with a permanent magnet at the moving contact both ends, moving contact both sides are provided with arc-chute in the shell, the magnetic field that two permanent magnets generate can will be moved, the electric arc that two contacts of static contact contact generate guides the corresponding arc-chute into.The utility model can be determined that according to the long-range navigation thatch law of electromagnetic theory, regardless of the current polarity loaded on two contacts, it all will be by the magnetic blow-out force effect perpendicular to magnetic line of force direction when generating electric arc between contact, to which electric arc to be guided into the arc-chute of both sides, not only eliminating original magnetic quenching mode, there are polar disadvantages, but also can accelerate arc extinguishing speed, improve arc extinguishing ability.
Description
Technical field
The utility model is related to D.C. contactor, specifically a kind of nonpolarity combined type arc-control device of D.C. contactor.
Background technology
Increasingly increase with new-energy automobile field to electrical energy demands, coming into operation for high-power electric appliance make circuit
In electric current also increase therewith, just to the D.C. contactor that plays on-off action in circuit, more stringent requirements are proposed for this.New energy
Requirement of the source automobile industry to contactor may be summarized to be small size substantially, high-power, the long-life, but this three indexs are each other all
There is a mutual containing, the power of smaller volume and bigger will necessarily excite the electric arc of bigger at work, to influence contactor
Service life；In order to solve this Trinitarian contradiction, general D.C. contactor adds the side of magnetic quenching using vacuum extinction
Formula quickly extinguishes electric arc, to extend the contactor service life.But this magnetic quenching mode connects direct current there are polar disadvantage
The matching requirements of tentaculum are higher
Utility model content
In view of the above technical problems, the utility model provides a kind of nonpolarity group of D.C. contactor for eliminating polarity disadvantage
Box-like arc-control device.
Technical solution is used by the utility model solves above-mentioned technical problem：D.C. contactor is nonpolarity, and combined type goes out
Arc device includes the shell of sealing, and moving contact is provided in the shell, and being provided on the housing can be with the moving contact two
The static contact contacted respectively is held, is provided with the insulating support for making two static contacts reliably insulate on the housing, described dynamic tactile
Head both ends are respectively arranged with a permanent magnet, and moving contact both sides are provided with arc-chute in the shell, and two permanent magnets generate
Magnetic field can by two contacts of dynamic and static contact generate electric arc guide the corresponding arc-chute into.
Preferably, the polarity of the two permanent magnets sides adjacent is different.
Preferably, being connected by armature base plate on the downside of two permanent magnet.
Preferably, being filled with inert gas in the shell of the sealing.
Preferably, the arc-chute is mounted on insulating support.
As can be known from the above technical solutions, the utility model is equipped with permanent magnet, the sky that two permanent magnets generate at moving contact both ends
Between the direction of the magnetic line of force can be along the length direction of moving contact, and magnetic field intensity maximum region is completely covered between the disjunction of two contacts
Gap ensures that good magnetic blow-out effect in this way.It can be determined that according to the long-range navigation thatch law of electromagnetic theory, no matter on two contacts
The current polarity loaded is how, when generating electric arc between contact all by by the magnetic blow-out force effect perpendicular to magnetic line of force direction,
To which electric arc to be guided into the arc-chute of both sides, not only eliminating original magnetic quenching mode, there are polar disadvantages, but also can accelerate
Arc extinguishing speed improves arc extinguishing ability.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model preferred embodiment.
Fig. 2 is the side schematic view of Fig. 1.
Specific implementation mode
The utility model is discussed in detail with reference to Fig. 1 and Fig. 2, this utility model illustrative examples and say
It is bright to be used for explaining the utility model, but be not intended to limit the scope of the present invention.
D.C. contactor is nonpolarity combined type arc-control device includes the shell 1 of sealing, indifferent gas is filled in the shell
Body is, it can be achieved that vacuum extinction；Moving contact 2 is provided in the shell, being provided on the housing can be with the moving contact both ends
The static contact 3 contacted respectively, is provided with the insulating support 4 for making two static contacts reliably insulate on the housing, in the shell
It is respectively arranged with a permanent magnet 5 positioned at moving contact both ends, moving contact both sides are provided with arc-chute 6 in the shell, two
The magnetic field that permanent magnet generates can guide the electric arc that two contacts of dynamic and static contact generate into the corresponding arc-chute.Work as electricity
After arc generates, the electric arc in magnetic field moves under Lorentz force towards arc extinguishing grid bearing, to make arc curved way extend, the electricity of electric arc
Field intensity is lower, and arc column attenuates, arc road reach arc-chute when, electric arc under the segmentation of arc-chute, arc road be further elongated and
It is cooling, until extinguishing completely, to achieve the purpose that fast arc extinction.
In implementation process, permanent magnetism shape can be rectangle or arc-shaped etc..Arc-chute is arranged on insulating support, goes out
It is insulated by insulating support between arc grid, and is positioned by insulating support and shell.Preferably, the two permanent magnets phase
The polarity of adjacent side is different, can be along the space magnetic line of force of the length direction of moving contact so as to be formed.Specifically, two permanent magnetism
It is connected by armature base plate 7 on the downside of body, two permanent magnets can be equal to one piece of whole magnet by approximation；Such as the poles S of whole magnet
The poles N of the poles S of i.e. one of permanent magnet, whole magnet are the poles N of another permanent magnet, and the direction of the space magnetic line of force is one
It is directed toward the poles S of other in which permanent magnet, arrow direction as shown in Figure 2, and magnetic field intensity maximum area in the poles N of permanent magnet
The breaking gap of two contacts is completely covered in domain, ensures that good magnetic blow-out effect in this way.
Since two permanent magnets are similar to a whole magnet, no matter can be determined that according to the long-range navigation thatch law of electromagnetic theory
How is the current polarity loaded on contact, if generating electric arc between contact, which all will be by perpendicular to the magnetic line of force
The effect of the magnetic blow-out power in direction, and the magnetic blow-out power size same direction suffered by the electric arc between two contacts on the contrary, electric arc in electromagnetic force
Promotion under both sides counter motion to moving contact, reach contact edges, arc road is drawn high at contact edges chamfering at this time, arc
Road attenuates energy attenuation, and electric arc finally arrives at the arc-chute positioned at moving contact both sides, and arc road is further drawn high and cooled down directly at this time
Extinguish to complete, completes the working cycles of an arc extinguishing at this time.The utility model proposes a kind of completely new magnetic blowouts as a result,
Arc mode, to eliminate original magnetic quenching mode, there are polar disadvantages, reduce the matching requirements of D.C. contactor.
The above embodiment is only for illustration of the utility model, and is not limitations of the present invention, related skill
The those of ordinary skill in art field can be with various changes can be made in the case where not departing from the spirit and scope of the utility model
And modification, therefore all equivalent technical solutions should also belong to the scope of the utility model.
Claims (5)
1. D.C. contactor is nonpolarity combined type arc-control device, includes the shell of sealing, moving contact is provided in the shell, special
Sign is：It is provided with the static contact that can be respectively contacted with the moving contact both ends on the housing, is arranged on the housing
There is the insulating support for making two static contacts reliably insulate, a permanent magnet is respectively arranged at the moving contact both ends, in the shell
Interior that moving contact both sides are provided with arc-chute, the magnetic field that two permanent magnets generate can generate two contacts of dynamic and static contact
Electric arc guide the corresponding arc-chute into.
2. the nonpolarity combined type arc-control device of D.C. contactor according to claim 1, it is characterised in that：Two permanent magnet
The polarity of sides adjacent is different.
3. the nonpolarity combined type arc-control device of D.C. contactor according to claim 2, it is characterised in that：Two permanent magnet
Downside is connected by armature base plate.
4. according to claims 1 or 2 or the 3 nonpolarity combined type arc-control devices of D.C. contactor, it is characterised in that：It is described close
Inert gas is filled in the shell of envelope.
5. according to claims 1 or 2 or the 3 nonpolarity combined type arc-control devices of D.C. contactor, it is characterised in that：It is described to go out
Arc grid are mounted on insulating support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820539751.4U CN207993778U (en) | 2018-04-17 | 2018-04-17 | D.C. contactor is nonpolarity combined type arc-control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820539751.4U CN207993778U (en) | 2018-04-17 | 2018-04-17 | D.C. contactor is nonpolarity combined type arc-control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207993778U true CN207993778U (en) | 2018-10-19 |
Family
ID=63831771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820539751.4U Expired - Fee Related CN207993778U (en) | 2018-04-17 | 2018-04-17 | D.C. contactor is nonpolarity combined type arc-control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207993778U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216071A (en) * | 2018-11-19 | 2019-01-15 | 尼普顿电器（昆山）有限公司 | A kind of arc-control device |
| CN110071008A (en) * | 2019-05-21 | 2019-07-30 | 贵州电网有限责任公司 | A kind of AC circuit breaker |
-
2018
- 2018-04-17 CN CN201820539751.4U patent/CN207993778U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109216071A (en) * | 2018-11-19 | 2019-01-15 | 尼普顿电器（昆山）有限公司 | A kind of arc-control device |
| CN110071008A (en) * | 2019-05-21 | 2019-07-30 | 贵州电网有限责任公司 | A kind of AC circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 Termination date: 20200417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |