CN105374632B - Nonpolarity D.C. contactor arc-extinguishing mechanism - Google Patents
Nonpolarity D.C. contactor arc-extinguishing mechanism Download PDFInfo
- Publication number
- CN105374632B CN105374632B CN201510885072.3A CN201510885072A CN105374632B CN 105374632 B CN105374632 B CN 105374632B CN 201510885072 A CN201510885072 A CN 201510885072A CN 105374632 B CN105374632 B CN 105374632B
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- CN
- China
- Prior art keywords
- permanent magnet
- contact
- static contact
- arc
- contact chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
- H01H50/38—Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
Abstract
The invention discloses a kind of nonpolarity D.C. contactor arc-extinguishing mechanisms, the first static contact and the second static contact set including two parallel intervals, the lower section of first static contact and the second static contact is equipped with contact chip that can simultaneously with its break-make, it is located in the contact chip where first static contact and the second static contact outside the same side of plane and is arranged in sequence with the first permanent magnet, the second permanent magnet and three permanent magnet, the wherein polarity of the first permanent magnet and three permanent magnet is identical, and the second permanent magnet is opposite with the polarity of first permanent magnet and three permanent magnet.This is nonpolarity, and D.C. contactor arc-extinguishing mechanism uses three permanent magnets, the same side of contact chip is arranged on, not only cost is more, but also will not increase the volume of D.C. contactor, it can be played again when static contact power supply is reversed and electric arc deflects again, so as to reach timely and effective arc quenching effect.
Description
Technical field
The present invention relates to a kind of contactor arc-extinguishing mechanism more particularly to a kind of nonpolarity D.C. contactor arc-extinguishing mechanisms.
Background technology
The arc quenching method of D.C. contactor have natural arc extinguishing, metal grid arc extinguishing, vacuum extinction, pressed gas arc extinguishing, from
The forms such as body magnetic blow-out combination metal grid arc extinguishing, permanent magnetism magnetic quenching, pressed gas combination permanent magnetism magnetic quenching.But these arc extinguishings
Mode all has itself advantage and disadvantage.
Wherein, permanent magnetism magnetic quenching is at low cost due to simple in structure, can improve disjunction voltage and be most widely used.It is existing
Most common magnetic quenching mechanism is to set permanent magnet respectively in the two sides of two static contacts, is company below two static contacts
Contact pin.In the case of no permanent magnet, the moment as connection sheet disconnects can form electricity at two between static contact and connection sheet
Arc, due to no permanent magnet, electric arc will not extinguish, and high-temperature electric arc can burn static contact and connection sheet.And it uses quiet at two
When the two sides of contact set the arc-extinguishing mechanism of permanent magnet respectively, since the polarity of permanent magnet is two poles, i.e., one side is N poles,
Another side is S poles, when one of static contact connects the anode of power supply, another static contact connects the cathode of power supply, the electricity of generation
Arc is deflected from the right and left up to extinguishing.This structure is the common structure of D.C. contactor of current polarized, but once on
The positive static contact stated connects the cathode of power supply, and another negative sense static contact connects the anode of power supply, and two electric arc meetings will be simultaneously in
Between deflection until short circuit.
The patent of invention of Patent No. CN201110057695.3 discloses a kind of Nonpolar direct-current contactor arc extinguishing system,
It uses three permanent magnets by electric arc respectively to two opposite movements.Although the arc quenching system realizes the extinguishing of electric arc, real
Nonpolarity requirement is showed, but since three of them permanent magnet and two static contacts are separately positioned on same straight line, has so been formed
D.C. contactor volume it is inevitable very big, the defects of so as to cause inconvenient for use and cost increase.In addition, also have in the market
The arc-extinguishing mechanism of three permanent magnets is set to occur respectively in the both sides of contact chip, although nonpolarity arc quenching effect can be realized,
Since permanent magnet quantity is more, production cost is improved, while contact chip both sides set permanent magnet, also accordingly add product
Volume.
The content of the invention
It is simple in structure tight the present invention provides a kind of nonpolarity D.C. contactor arc-extinguishing mechanism in order to overcome drawbacks described above
It gathers, it is small, and can realize nonpolarity arc extinguishing.
The present invention in order to solve its technical problem used by technical solution be：A kind of nonpolarity D.C. contactor arc extinguishing machine
Structure, including the first static contact and the second static contact that two parallel intervals are set, the lower section of first static contact and the second static contact
Equipped with contact chip that can simultaneously with its break-make, the plane where the contact chip is located at first static contact and the second static contact
The same side outside be arranged in sequence with the first permanent magnet, the second permanent magnet and three permanent magnet, wherein the first permanent magnet and the 3rd is forever
The polarity of magnet is identical, and the second permanent magnet is opposite with the polarity of first permanent magnet and three permanent magnet.
As the preferred embodiment of the present invention, first permanent magnet, the second permanent magnet and the N poles of three permanent magnet and S poles
Place rectilinear direction is each perpendicular to plane where first static contact and the second static contact.
As the preferred embodiment of the present invention, the N poles of first permanent magnet and three permanent magnet are respectively close to the contact
The S poles of piece, first permanent magnet and three permanent magnet are respectively further from the contact chip, and the S of second permanent magnet is extremely close to institute
Contact chip is stated, the N grades of second permanent magnet are away from the contact chip.
As the preferred embodiment of the present invention, the S poles of first permanent magnet and three permanent magnet are respectively close to the contact
The N poles of piece, first permanent magnet and three permanent magnet are respectively further from the contact chip, and the N of second permanent magnet is extremely close to institute
Contact chip is stated, the S grades of second permanent magnet are away from the contact chip.
As the preferred embodiment of the present invention, first permanent magnet, the second permanent magnet and three permanent magnet connect to form one
Body structure.
The beneficial effects of the invention are as follows：This is nonpolarity, and D.C. contactor arc-extinguishing mechanism uses three permanent magnets, is arranged on and connects
The same side of contact, not only cost is more, but also will not increase the volume of D.C. contactor, and can be when static contact power supply is reversed
It plays and electric arc deflects again, so as to reach timely and effective arc quenching effect.
Description of the drawings
Fig. 1 is dimensional structure diagram of the present invention；
Fig. 2 is 1 front view；
Fig. 3 is arc deflection direction schematic diagram of the bottom view of Fig. 1 when the first static contact leads to forward current；
Fig. 4 is arc deflection direction schematic diagram of the bottom view of Fig. 1 when the first static contact leads to reverse current.
With reference to attached drawing, make the following instructions：
1 --- the first static contact 2 --- second static contact
3 --- contact chip 4 --- first permanent magnets
5 --- the second permanent magnet 6 --- three permanent magnets
A --- magnetic line of force B --- arc deflection direction
Specific embodiment
Below in conjunction with attached drawing, elaborate to the preferred embodiment of the present invention.But protection scope of the present invention is not
It is limited to following embodiments, i.e., the simple equivalence changes made in every case with scope of the present invention patent and description are with repairing
Decorations, all still belong within patent covering scope of the present invention.
Refering to Fig. 1-4, a kind of nonpolarity D.C. contactor arc-extinguishing mechanism, the first static contact set including two parallel intervals
1 and second static contact 2, the lower section of first static contact and the second static contact is equipped with contact chip 3 that can simultaneously with its break-make, in institute
It states and is arranged in sequence with the first permanent magnet outside the same side of plane where contact chip is located at first static contact and the second static contact
4th, the second permanent magnet 5 and three permanent magnet 6, wherein the polarity of the first permanent magnet and three permanent magnet is identical, the second permanent magnet with
The polarity of first permanent magnet and three permanent magnet is opposite.
Wherein, first permanent magnet 4, the second permanent magnet 5 and three permanent magnet 6 are connected to form one structure.Described
One permanent magnet 4, the N poles of the second permanent magnet 5 and three permanent magnet 6 and rectilinear direction where S poles are each perpendicular to first stationary contact
Plane where head and the second static contact.
One of which embodiment could be provided as：The N poles of first permanent magnet and three permanent magnet are respectively close to institute
Contact chip is stated, the S poles of first permanent magnet and three permanent magnet are respectively further from the contact chip, the S poles of second permanent magnet
Close to the contact chip, the N grades of second permanent magnet are away from the contact chip.
Another embodiment could be provided as：The S poles of first permanent magnet and three permanent magnet are respectively close to described
The N poles of contact chip, first permanent magnet and three permanent magnet are respectively further from the contact chip, and the N poles of second permanent magnet are leaned on
The nearly contact chip, the S grades of second permanent magnet are away from the contact chip.
Fig. 1 be structure of the present invention dimensional structure diagram (using the N of first and third permanent magnet extremely close to contact chip when as
Example), Fig. 2 is its front view, and Fig. 3 Fig. 4 is the bottom view of Fig. 1, and Fig. 3 is the magnetic force when the first static contact flows into forward current
Line and arc deflection direction signal, Fig. 4 be the first static contact flow into reverse current when the magnetic line of force and arc deflection direction show
Meaning.Wherein, a is magnetic line of force direction, and b is arc deflection direction, and no matter first and second static contact flows into it can be seen from Fig. 3, Fig. 4
Electric current forward or backwards, the deflection direction of electric arc be it is parallel towards the same side, i.e., load on static contact no matter polarity such as
What is impossible to make two arc short circuits, so as to reach non-polar purpose.
Arc-extinguishing mechanism of the present invention is set due to having only used three blocks of magnet, relatively current six blocks of magnet, significantly
Reduce cost；Meanwhile one side of the arc-extinguishing mechanism of the present invention due to being positioned only at contact chip, relatively current both sides are all provided with
The mode of magnet is put, small product size can be substantially reduced.It can be seen that arc-extinguishing mechanism of the present invention is not only concise in structure,
Good nonpolarity effect can be reached, and it is at low cost, it occupies little space.
Claims (1)
1. a kind of nonpolarity D.C. contactor arc-extinguishing mechanism, the first static contact (1) and second set including two parallel intervals is quiet
The lower section of contact (2), first static contact and the second static contact is equipped with contact chip (3) that can simultaneously with its break-make, and feature exists
In：It is located in the contact chip where first static contact and the second static contact outside the same side of plane and is arranged in sequence with first
Permanent magnet (4), the second permanent magnet (5) and three permanent magnet (6), wherein the polarity of the first permanent magnet and three permanent magnet is identical,
Second permanent magnet is opposite with the polarity of first permanent magnet and three permanent magnet；First permanent magnet (4), the second permanent magnet
(5) it is connected to form one structure with three permanent magnet (6)；First permanent magnet (4), the second permanent magnet (5) and the 3rd permanent magnetism
Rectilinear direction where the N poles of body (6) and S poles is each perpendicular to plane where first static contact and the second static contact；Described
The N poles of one permanent magnet and three permanent magnet are respectively close to the contact chip, the S poles difference of first permanent magnet and three permanent magnet
Away from the contact chip, extremely close to the contact chip, the N grades of second permanent magnet connect the S of second permanent magnet away from described
Contact；Or:The S poles of first permanent magnet and three permanent magnet are respectively close to the contact chip, first permanent magnet and
The N poles of three permanent magnet are respectively further from the contact chip, and the N of second permanent magnet is extremely close to the contact chip, second permanent magnetism
The S grades of body are away from the contact chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885072.3A CN105374632B (en) | 2015-12-04 | 2015-12-04 | Nonpolarity D.C. contactor arc-extinguishing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885072.3A CN105374632B (en) | 2015-12-04 | 2015-12-04 | Nonpolarity D.C. contactor arc-extinguishing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105374632A CN105374632A (en) | 2016-03-02 |
| CN105374632B true CN105374632B (en) | 2018-05-22 |
Family
ID=55376728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510885072.3A Active CN105374632B (en) | 2015-12-04 | 2015-12-04 | Nonpolarity D.C. contactor arc-extinguishing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105374632B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210025963A (en) * | 2019-08-28 | 2021-03-10 | 엘에스일렉트릭(주) | Arc path forming part and direct current relay include the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2442872T3 (en) * | 2008-12-12 | 2014-02-14 | Tyco Electronics Amp Gmbh | Contact bridge with blowing magnets |
| WO2012060089A1 (en) * | 2010-11-01 | 2012-05-10 | 日本特殊陶業株式会社 | Relay |
| CN102129935B (en) * | 2011-03-10 | 2013-01-02 | 二一三电器深圳有限公司 | Arc quenching system for nonpolar direct current contactor |
| CN103515153B (en) * | 2013-08-07 | 2016-12-28 | 浙江宏舟新能源科技有限公司 | A kind of nonpolarity high-voltage DC contactor arc quenching system of reliable arc extinguishing |
| CN205230962U (en) * | 2015-12-04 | 2016-05-11 | 苏州安来强电子科技有限公司 | Nonpolarity direct current contactor arc extinguishing mechanism |
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2015
- 2015-12-04 CN CN201510885072.3A patent/CN105374632B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105374632A (en) | 2016-03-02 |
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