CN109119291A - A kind of D.C. contactor arc extinguishing structure - Google Patents
A kind of D.C. contactor arc extinguishing structure Download PDFInfo
- Publication number
- CN109119291A CN109119291A CN201811050036.5A CN201811050036A CN109119291A CN 109119291 A CN109119291 A CN 109119291A CN 201811050036 A CN201811050036 A CN 201811050036A CN 109119291 A CN109119291 A CN 109119291A
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- China
- Prior art keywords
- permanent magnet
- contact component
- contactor
- fracture
- arc extinguishing
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- 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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- 230000003068 static effect Effects 0.000 claims abstract description 29
- 230000005404 monopole Effects 0.000 abstract description 4
- 238000010791 quenching Methods 0.000 abstract description 2
- 230000000171 quenching effect Effects 0.000 abstract description 2
- 238000010891 electric arc Methods 0.000 description 13
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A kind of D.C. contactor arc extinguishing structure, it includes moving contact component (1) and static contact component (2), it is characterized by: the moving contact component (1) and the static contact component (2) series connection form tool, there are four fracture (a, b, c, d) D.C. contactor major loop, four fracture (a, b, c, d) at least two permanent magnet is provided on the outside of the forming region that successively joins end to end, the pole orientation that permanent magnet of the moving contact component (1) when engaging with the static contact component (2) on the outside of the fracture of identical current direction is located at fracture face side is identical, the pole orientation that permanent magnet on the outside of the fracture of different current directions is located at fracture face side is different.This D.C. contactor arc extinguishing structure, major loop use four breakpoint cascade of monopole.Permanent magnet magnetic quenching is used in the single-pole contactor containing four fractures, the connection breaking capacity of D.C. contactor is greatly promoted while not increasing contactor volume, can turn on the higher main circuit voltage of disjunction, realizes the purpose of small size, high breaking.
Description
Technical field
The invention belongs to D.C. contactor technical fields, are specifically exactly to be related to a kind of D.C. contactor arc extinguishing structure.
Background technique
D.C. contactor is commonly used on using battery as the vehicle of the energy, and control vehicle launch, speed regulation etc. are multiple
Movement.With the rapid development of electric vehicles, market is higher and higher to the voltage rating demand of D.C. contactor.Since direct current connects
The volume of tentaculum is determined by rated current, and contact space is closed.And influence the connection breaking capacity of D.C. contactor contactor
Main factor be to turn on voltage, the connection voltage of D.C. contactor is higher, is less susceptible to normal ON disjunction, existing dynamic
Contact scheme has been difficult meet the needs of connecting disjunction high voltage.
Chinese patent Authorization Notice No. CN206250126U discloses a kind of D.C. contactor, and D.C. contactor includes: dynamic
Contact and static contact have spacing between moving contact and static contact, magnetic portion is equipped with around spacing, and magnetic portion generates arc extinguishing
Magnetic field, D.C. contactor further include magnetic-conductance portion, are arranged in around spacing and are located at the outside of magnetic portion to weaken outside magnetic portion
The contact assembly of the magnetic force of side, the D.C. contactor is weakened using single bridge-type contact structure by changing arc extinguishing area Distribution of Magnetic Field
The magnetic induction intensity in non-arc extinguishing area is avoided because of the influence after increasing magnetic field to product installation attachment component；It reduces forever
Magnet one end fringe magnetic leakage reinforces the magnetic field strength in rupturing duty area, to improve the arc extinguishing ability of product.But the direct current connects
Electric arc continues the problem of arcing when tentaculum will exist in disjunction when high voltage occasion uses.
Summary of the invention
The purpose of the present invention is to above-mentioned existing D.C. contactors when connecting disjunction DC high voltage, is difficult
The technical problem for extinguishing electric arc, provides a kind of D.C. contactor arc extinguishing structure, installs on an axis inside single-pole contactor
Two moving contact pieces, major loop use four breakpoint cascade of monopole.Permanent magnetism is used in the single-pole contactor containing four fractures
Body magnetic quenching greatly promotes the connection breaking capacity of D.C. contactor while not increasing contactor volume, can turn on point
Break higher main circuit voltage, realizes the purpose of small size, high breaking.
Technical solution
In order to achieve the above technical purposes, a kind of D.C. contactor arc extinguishing structure that the present invention designs, it includes moving contact
Component and static contact component, engagement and the disengagement of the moving contact component and the static contact component can control the direct current and connect
The on-off of tentaculum, it is characterised in that: the moving contact component and the static contact component, which are connected, to be formed tool there are four the straight of fracture
Contactor major loop is flowed, four fractures successively join end to end and are provided at least two permanent magnet on the outside of forming region, described
Permanent magnet of moving contact component when engaging with the static contact component on the outside of the fracture of identical current direction is located at fracture face side
Pole orientation it is identical, the pole orientation that the permanent magnet on the outside of the fracture of different current directions is located at fracture face side is different.
Further, four fractures, which successively join end to end, is provided with 2 permanent magnets on the outside of forming region, and described forever
Magnet is permanent magnet one and permanent magnet two, and the permanent magnet one is identical with two shape of permanent magnet, and the permanent magnet one fills for forward direction
Magnetic, permanent magnet two are reversely to magnetize.
Further, the permanent magnet one and permanent magnet two are rectangular or arc.
Further, four fractures, which successively join end to end, is provided with a permanent magnet on the outside of forming region, and described 4 forever
Magnet includes two permanent magnet three and two permanent magnets four, and the permanent magnet three and permanent magnet four are rectangular or arc.
Further, the permanent magnet three magnetizes for forward direction, and the permanent magnet four is reversely to magnetize.
Further, the moving contact component and static contact component connect to form zigzag major loop.
Beneficial effect
A kind of D.C. contactor arc extinguishing structure provided by the invention installs two on an axis inside single-pole contactor
Moving contact piece, major loop use four breakpoint cascade of monopole.Permanent magnet magnetic is used in the single-pole contactor containing four fractures
Arc is blown out, the connection breaking capacity of D.C. contactor is greatly promoted while not increasing contactor volume, can turn on disjunction more
High main circuit voltage realizes the purpose of small size, high breaking.
Detailed description of the invention
Attached drawing 1 is the product structure figure of the embodiment of the present invention 1.
Attached drawing 2 is the electric arc stress diagram of the embodiment of the present invention 1.
Attached drawing 3 is the permanent magnet arrangement schematic diagram of the embodiment of the present invention 2.
Attached drawing 4 is the permanent magnet arrangement schematic diagram of the embodiment of the present invention 3.
Attached drawing 5 is the permanent magnet arrangement schematic diagram of the embodiment of the present invention 4.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be further described.
Embodiment 1
As shown in Fig. 1, a kind of embodiment provided by the invention is a kind of D.C. contactor arc extinguishing structure, it includes dynamic touching
Head assembly 1 and static contact component 2, the engagement and disengagement of the moving contact component 1 and the static contact component 2 can control described
The on-off of D.C. contactor.The moving contact component 1 includes moving contact 1 and moving contact 2 102, the static contact component 2
Including static contact 1, static contact 2 202 and static contact 3 203, the static contact 1 and static contact 2 202 respectively with institute
The movable contact for stating a upper both ends in 2 102 both ends diagonal line of moving contact 1 and moving contact is corresponding, the static contact three
203 two stationary contacts 203a, 203a ' are respectively and on another in 2 102 both ends diagonal line of moving contact 1 and moving contact
The corresponding series connection of the movable contact at both ends forms tool, and there are four fracture a, b, c, the zigzag major loops of d.
As shown in Fig. 2, four fractures a, b, c, d successively join end to end and are provided with 4 forever on the outside of forming region
Magnet, the pole N of a permanent magnet to the pole S from inside to outside, 4 permanent magnets include two permanent magnets 3 303,303 ' and two
A permanent magnet 4 304,304 ', the permanent magnet 3 303,303 ' and permanent magnet 4 304,304 ' are arc.
The permanent magnet 3 303,303 ' magnetizes for forward direction, and the permanent magnet 4 304,304 ' is reversely to magnetize.
The course of work of the present embodiment is that as shown in Fig. 2, when disjunction, moving contact component 1 separates shape with static contact component 2
Electric arc is generated when moving contact component 1 is just separated with static contact component 2 at a, b, c, d, four fractures of four fractures.Electric arc is forever
It is elongated under the magnetic blow-out power F effect that magnet 3 303,303 ' and permanent magnet 4 304,304 ' generate, finally extinguishes electric arc quickly.
If when D.C. contactor reverse wiring, magnetic blow-out power of the electric arc in permanent magnet 3 303,303 ' and the generation of permanent magnet 4 304,304 '
It is reversed elongation under effect, can equally electric arc be made quickly to extinguish.
Embodiment 2
It as shown in Fig. 3, is the permanent magnet 3 303,303 ' and permanent magnet four the present invention also provides a kind of embodiment
304,304 ' can also be it is rectangular, other structures and embodiment 1 are identical.
Embodiment 3
As shown in Fig. 4, four fracture a, b, c, d described in a kind of embodiment that the present invention provides again successively join end to end
2 permanent magnets, the same current when moving contact component 1 and the static contact component 2 engage are provided on the outside of forming region
The pole orientation that permanent magnet on the outside of the fracture in direction is located at fracture face side is identical, on the outside of the fracture of different current directions forever
The pole orientation that magnet is located at fracture face side is different.
Four fractures a, b, c, d, which successively join end to end, is provided with 2 permanent magnets on the outside of forming region, and described forever
From inside to outside to the pole S, 2 permanent magnets are permanent magnet 1 and permanent magnet 2 302, the permanent magnet one for the pole N of magnet
301 is identical with 2 302 shape of permanent magnet, and the permanent magnet 1 magnetizes for forward direction, and permanent magnet 2 302 is reversely to magnetize.
The permanent magnet 1 and permanent magnet 2 302 are arc.
The course of work of the present embodiment is as shown in Fig. 4, and when disjunction, moving contact component 1 separates to be formed with static contact component 2
A, b, c, d, four fractures of four fractures generate electric arc when moving contact component 1 is just separated with static contact component 2.Electric arc is in permanent magnetism
It is elongated under the magnetic blow-out power F ' effect that body 1 and permanent magnet 2 302 generate, finally extinguishes electric arc quickly.If direct current connects
When tentaculum reverse wiring, electric arc quilt under the magnetic blow-out power effect that the magnetic blow-out power that permanent magnet 1 and permanent magnet 2 302 generate generates
It is reversed to elongate, can equally electric arc be made quickly to extinguish.
Embodiment 4
As shown in Fig. 5, a kind of embodiment that the present invention provides again is the permanent magnet 1 and permanent magnet 2 302 is
Rectangular, other structures and embodiment 3 are identical.
A kind of D.C. contactor arc extinguishing structure provided by the invention installs two on an axis inside single-pole contactor
Moving contact piece, major loop use four breakpoint cascade of monopole.Permanent magnet magnetic is used in the single-pole contactor containing four fractures
Arc is blown out, the connection breaking capacity of D.C. contactor is greatly promoted while not increasing contactor volume, can turn on disjunction more
High main circuit voltage realizes the purpose of small size, high breaking.
Structure depicted in this specification institute accompanying drawings of the embodiment of the present invention, ratio, size, quantity etc., only to cooperate specification
Revealed content is not intended to limit the invention enforceable restriction item so that those skilled in the art understands and reads
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed technology contents and obtain and can contain
In the range of lid.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre ", " clockwise ", " inverse time in this specification
The term of needle " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Claims (6)
1. a kind of D.C. contactor arc extinguishing structure, it includes moving contact component (1) and static contact component (2), the moving contact group
The engagement and disengagement of part (1) and the static contact component (2) can control the on-off of the D.C. contactor, it is characterised in that:
The moving contact component (1) and the static contact component (2) series connection form tool, and there are four the D.C. contactors of fracture (a, b, c, d)
Major loop, four fractures (a, b, c, d) successively join end to end and are provided at least two permanent magnet, institute on the outside of forming region
Moving contact component (1) is stated with the permanent magnet on the outside of the fracture of current direction identical when the static contact component (2) engagement positioned at disconnected
The pole orientation of mouth face side is identical, and the permanent magnet on the outside of the fracture of different current directions is located at the pole orientation of fracture face side
It is different.
2. a kind of D.C. contactor arc extinguishing structure as described in claim 1, it is characterised in that: four fractures (a, b, c,
D) 2 permanent magnets are provided on the outside of the forming region that successively joins end to end, 2 permanent magnets are for permanent magnet one (301) and forever
Magnet two (302), the permanent magnet one (301) is identical with permanent magnet two (302) shape, and the permanent magnet one (301) is forward direction
It magnetizes, permanent magnet two (302) is reversely to magnetize.
3. a kind of D.C. contactor arc extinguishing structure as claimed in claim 2, it is characterised in that: the permanent magnet one (301) and
Permanent magnet two (302) is rectangular or arc.
4. a kind of D.C. contactor arc extinguishing structure as described in claim 1, it is characterised in that: four fractures (a, b, c,
D) 4 permanent magnets are provided on the outside of the forming region that successively joins end to end, 4 permanent magnets include two permanent magnets three
(303,303 ') and two permanent magnets four (304,304 '), the permanent magnet three (303,303 ') and permanent magnet four (304,304 ')
For rectangular or arc.
5. a kind of D.C. contactor arc extinguishing structure as claimed in claim 4, it is characterised in that: the permanent magnet three (303,
303 ') it magnetizes for forward direction, the permanent magnet four (304,304 ') is reversely to magnetize.
6. a kind of D.C. contactor arc extinguishing structure as described in claim 1, it is characterised in that: the moving contact component (1) and
Static contact component (2) series connection forms zigzag major loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811050036.5A CN109119291B (en) | 2018-09-10 | 2018-09-10 | Arc extinguishing structure of direct current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811050036.5A CN109119291B (en) | 2018-09-10 | 2018-09-10 | Arc extinguishing structure of direct current contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109119291A true CN109119291A (en) | 2019-01-01 |
| CN109119291B CN109119291B (en) | 2024-02-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811050036.5A Active CN109119291B (en) | 2018-09-10 | 2018-09-10 | Arc extinguishing structure of direct current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109119291B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416031A (en) * | 2019-08-19 | 2019-11-05 | 德力西电气有限公司 | Four breakpoint contactors |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994014177A1 (en) * | 1992-12-16 | 1994-06-23 | Nu-Lec Pty. Ltd. | Arc extinguishing switch apparatus and method |
| CN1967753A (en) * | 2006-11-24 | 2007-05-23 | 西安交通大学 | A high-speed double-break magnetic blowing middle-pressure great electric current direct current current-limiting circuit breaker |
| CN203134623U (en) * | 2013-02-06 | 2013-08-14 | 西安沙尔特宝电气有限公司 | Permanent-magnetic arc extinguishing apparatus for contactor main contact |
| CN104124118A (en) * | 2014-08-17 | 2014-10-29 | 中国船舶重工集团公司第七一二研究所 | Magnetic blow-out device of direct current breaker |
| EP2927927A1 (en) * | 2014-04-02 | 2015-10-07 | Schaltbau GmbH | Dc contactor with additional switching for ac loads and polling contrary to the preferred power direction |
| CN208903932U (en) * | 2018-09-10 | 2019-05-24 | 上海良信电器股份有限公司 | A kind of D.C. contactor arc extinguishing structure |
-
2018
- 2018-09-10 CN CN201811050036.5A patent/CN109119291B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994014177A1 (en) * | 1992-12-16 | 1994-06-23 | Nu-Lec Pty. Ltd. | Arc extinguishing switch apparatus and method |
| CN1967753A (en) * | 2006-11-24 | 2007-05-23 | 西安交通大学 | A high-speed double-break magnetic blowing middle-pressure great electric current direct current current-limiting circuit breaker |
| CN203134623U (en) * | 2013-02-06 | 2013-08-14 | 西安沙尔特宝电气有限公司 | Permanent-magnetic arc extinguishing apparatus for contactor main contact |
| EP2927927A1 (en) * | 2014-04-02 | 2015-10-07 | Schaltbau GmbH | Dc contactor with additional switching for ac loads and polling contrary to the preferred power direction |
| CN104124118A (en) * | 2014-08-17 | 2014-10-29 | 中国船舶重工集团公司第七一二研究所 | Magnetic blow-out device of direct current breaker |
| CN208903932U (en) * | 2018-09-10 | 2019-05-24 | 上海良信电器股份有限公司 | A kind of D.C. contactor arc extinguishing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416031A (en) * | 2019-08-19 | 2019-11-05 | 德力西电气有限公司 | Four breakpoint contactors |
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| Publication number | Publication date |
|---|---|
| CN109119291B (en) | 2024-02-20 |
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