CN109243921A - A kind of permanent magnetism mounting structure of D.C. contactor - Google Patents
A kind of permanent magnetism mounting structure of D.C. contactor Download PDFInfo
- Publication number
- CN109243921A CN109243921A CN201811049539.0A CN201811049539A CN109243921A CN 109243921 A CN109243921 A CN 109243921A CN 201811049539 A CN201811049539 A CN 201811049539A CN 109243921 A CN109243921 A CN 109243921A
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- CN
- China
- Prior art keywords
- contactor
- static
- contact
- permanent
- mounting structure
- 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.)
- Pending
Links
- 230000005389 magnetism Effects 0.000 title claims abstract description 12
- 230000003068 static effect Effects 0.000 claims abstract description 34
- 238000009434 installation Methods 0.000 abstract description 6
- 238000010891 electric arc Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 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 2
- 238000013475 authorization Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003306 harvesting 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
-
- 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)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of permanent magnetism mounting structure of D.C. contactor, it includes stationary contact bracket (1), at least two static contacts (2, 2 ') it is installed in the cavity (101) of the stationary contact bracket (1), the both ends of moving contact (3) respectively with described two static contacts (2, 2 ') it is correspondingly formed D.C. contactor major loop, it is characterized by: described two static contacts (2, 2 ') each static contact in is correspondingly arranged one piece of permanent magnet (4, 4 '), two pieces of permanent magnets (4, 4 ') it is respectively arranged in two static contact (2, 2 ') two sides of the line of centres, two pieces of permanent magnets (4, 4 ') line direction and two static contacts (2 between, 2 ') line direction is neither perpendicular to nor parallel between；The permanent magnetism mounting structure of this is nonpolarity D.C. contactor realizes that major loop is nonpolarity, meets running in new-energy automobile and charging pile and requires；It is small in size, meet the installation requirement of new-energy automobile and charging pile；Enhance magnetic blow-out, under existing small volume space, improves the breaking capacity of contactor, ensure and use upper safety.
Description
Technical field
The invention belongs to D.C. contactor technical fields, are specifically exactly to be related to a kind of permanent magnet installation of D.C. contactor
Structure.
Background technique
With the rapid development of new-energy automobile, matching used charging pile also popularizes large area, and new energy vapour
It can all be used inside vehicle and charging pile and arrive D.C. contactor.Wherein since charging pile generally has two pipette tips, in order to reach rush-harvesting and rush-planting
It works at the same time or single rifle high-power operation, needs inside charging pile using the nonpolarity D.C. contactor for arriving high target disjunction.Cause
This, can realize that high target disjunction and the non-polar D.C. contactor of major loop are particularly important for new-energy automobile industry simultaneously.
Chinese patent Authorization Notice No. CN107331583A discloses nonpolarity high-voltage DC contactor arc quenching system structure,
Its by being respectively respectively arranged with a permanent magnet outside the opposite sides of quiet contact point, line direction between two permanent magnets with two
Line direction between quiet contact point is mutually perpendicular to, and the polarity of two permanent magnets is identical, so that moving contacting plate quiet is contacted with two
The electric arc dispersal direction generated between point is identical, and is always maintained at parastate, to effectively prevent moving contacting plate and two
The arc contacts that are generated between a quiet contact point and short circuit occurs, realize nonpolarity arc extinguishing.But in this arc quenching system structure,
Two permanent magnet lines are vertical with two stationary contact lines, and to occupy internal arc extinguishing space more for two pieces of biggish permanent magnets, is having
In the space of limit, it is unfavorable for the elongation of electric arc.
Chinese patent Authorization Notice No. CN104966646A discloses a kind of nonpolarity D.C. contactor, the patent at least two
Permanent magnet described in block is divided into the two sides of the extended line of two stationary contact lines, and the magnetic direction of the permanent magnet and two stationary contacts
Current direction of the point line direction in parallel and simultaneously between dynamic and static contact is vertical.Forever by adjusting D.C. contactor inside
Magnet direction and magnetic field strength realize the two-way performance cut-off of D.C. contactor.But in the arc quenching system structure, permanent magnet
The two sides of the extended line of two stationary contact lines are divided into, and the magnetic direction of the permanent magnet and two stationary contact line directions are flat
Capable and simultaneously between dynamic and static contact current direction is vertical, increases installation difficulty.
Summary of the invention
The purpose of the present invention is to above-mentioned existing nonpolarity D.C. contactor volume is larger, assemble more complicated
Technological deficiency, provides a kind of permanent magnetism mounting structure of D.C. contactor, realizes that major loop is nonpolarity, meet new-energy automobile and
Running requires in charging pile；It is small in size, meet the installation requirement of new-energy automobile and charging pile；Enhance magnetic blow-out, in existing corpusculum
Under product space, the breaking capacity of contactor is improved, ensures and uses upper safety.
Technical solution
In order to achieve the above technical purposes, a kind of permanent magnetism mounting structure for D.C. contactor that the present invention designs, it is wrapped
Include stationary contact bracket, at least two static contacts are installed in the cavity of the stationary contact bracket, the both ends of moving contact respectively with
Described two static contacts are correspondingly formed D.C. contactor major loop, it is characterised in that: each stationary contact in described two static contacts
Head is all correspondingly arranged one piece of permanent magnet, and two pieces of permanent magnets are respectively arranged in the two sides of the two static contacts line of centres, and two pieces forever
Line direction is neither perpendicular to nor parallel between line direction and two static contacts between magnet；
The magnetic line of force direction of two pieces of permanent magnets is in opposite direction, and is not parallel to center company between two static contact
Line.
Preferably, for two pieces of permanent magnets in the mounting groove of stationary contact bracket, the mounting groove is equipped with anti-fall down in a faint
Angle.
Beneficial effect
A kind of permanent magnetism mounting structure of D.C. contactor provided by the invention realizes that major loop is nonpolarity, meets new energy
Running requires in source automobile and charging pile；It is small in size, meet the installation requirement of new-energy automobile and charging pile；Enhance magnetic blow-out,
Under existing small volume space, the breaking capacity of contactor is improved, ensures and uses upper safety.
Detailed description of the invention
Attached drawing 1 is the product figure of the embodiment of the present invention.
Attached drawing 2 is the main view of the embodiment of the present invention.
Attached drawing 3 is permanent magnet and static contact positional diagram in the embodiment of the present invention.
Attached drawing 4a is magnetic blow-out schematic diagram one in the embodiment of the present invention.
Attached drawing 4b is magnetic blow-out schematic diagram two in the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be further described.
Embodiment
As shown in attached drawing 1,2 and 3, a kind of permanent magnetism mounting structure of D.C. contactor, it includes stationary contact bracket 1, until
Few two static contacts 2,2 ' are installed in the cavity 101 of the stationary contact bracket 1, and the both ends of moving contact 3 are respectively with described two
A static contact 2,2 ' is correspondingly formed D.C. contactor major loop, it is characterised in that: described two static contacts 2, each of 2 ' is quiet
Contact is all correspondingly arranged one piece of permanent magnet 4, and 4 ', two pieces of permanent magnets 4,4 ' are respectively arranged in two static contacts, 2, the 2 ' line of centres
Two sides, line direction is neither perpendicular to nor parallel between line direction and two static contacts 2,2 ' between two pieces of permanent magnets 4,4 '；
The magnetic line of force direction of two pieces of permanent magnets 4,4 ' is in opposite direction, and is not parallel between two static contact 2,2 '
The line of centres.
As shown in Fig. 1, two pieces of permanent magnets 4,4 ' are described in the mounting groove 102,102 ' of stationary contact bracket 1
Mounting groove 102,102 ' is equipped with mistake proofing chamfering.
The magnetic blow-out process of the present embodiment be when an arc occurs, as shown in attached drawing 4a, direction be from the static contact 2 ' on right side,
Moving contact 3 arrives the static contact 2 in left side, fixed according to left hand when the magnetic direction that the pole N of permanent magnet 4 and 4 ' and the pole S generate is opposite
Then, the electric arc stress F that the static contact 2 and moving contact 3 in left side generate is as shown in attached drawing 4a, the static contact 2 ' and moving contact 2 on right side
As shown in fig. 4 a, the direction of motion of two electric arcs is different for the electric arc stress of generation.When and static contact 2, moving contact 3 of the direction from left side
To right side static contact 2 ' when, electric arc stress F ' is then as depicted in fig. 4b.
A kind of permanent magnetism mounting structure of D.C. contactor provided by the invention realizes that major loop is nonpolarity, meets new energy
Running requires in source automobile and charging pile；It is small in size, meet the installation requirement of new-energy automobile and charging pile；Enhance magnetic blow-out,
Under existing small volume space, the breaking capacity of contactor is improved, ensures and uses upper safety.
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 (2)
1. a kind of permanent magnetism mounting structure of D.C. contactor, it includes stationary contact bracket (1), at least two static contacts (2,2 ')
Be installed in the cavity (101) of the stationary contact bracket (1), the both ends of moving contact (3) respectively with described two static contacts (2,
2 ') it is correspondingly formed D.C. contactor major loop, it is characterised in that: each static contact in described two static contacts (2,2 ') is right
One piece of permanent magnet (4,4 ') should be set, and two pieces of permanent magnets (4,4 ') are respectively arranged in two static contact (2, the 2 ') line of centres
Two sides, line direction is neither perpendicular to nor parallel between line direction and two static contacts (2,2 ') between two pieces of permanent magnets (4,4 ')；
The magnetic line of force direction of two pieces of permanent magnets (4,4 ') is in opposite direction, and is not parallel between two static contact (2,2 ')
The line of centres.
2. a kind of permanent magnetism mounting structure of D.C. contactor as described in claim 1, it is characterised in that: two blocks of permanent magnetism
For body (4,4 ') in the mounting groove (102,102 ') of stationary contact bracket (1), the mounting groove (102,102 ') is equipped with mistake proofing
Chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811049539.0A CN109243921A (en) | 2018-09-10 | 2018-09-10 | A kind of permanent magnetism mounting structure of D.C. contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811049539.0A CN109243921A (en) | 2018-09-10 | 2018-09-10 | A kind of permanent magnetism mounting structure of D.C. contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109243921A true CN109243921A (en) | 2019-01-18 |
Family
ID=65067374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811049539.0A Pending CN109243921A (en) | 2018-09-10 | 2018-09-10 | A kind of permanent magnetism mounting structure of D.C. contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109243921A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560031A (en) * | 2013-11-15 | 2014-02-05 | 中国电子科技集团公司第四十研究所 | Permanent magnet arc extinction structure of transverse magnetic field |
| CN104966646A (en) * | 2015-07-03 | 2015-10-07 | 昆山国力真空电器有限公司 | Non-polar DC contactor |
| CN107331583A (en) * | 2017-08-15 | 2017-11-07 | 昆山国力源通新能源科技有限公司 | Nonpolarity high-voltage DC contactor arc quenching system structure |
| CN107749374A (en) * | 2017-11-02 | 2018-03-02 | 苏州安来强电子科技有限公司 | A kind of modified D.C. contactor arc extinguishing structure |
| CN208848831U (en) * | 2018-09-10 | 2019-05-10 | 上海良信电器股份有限公司 | A kind of permanent magnetism mounting structure of D.C. contactor |
-
2018
- 2018-09-10 CN CN201811049539.0A patent/CN109243921A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560031A (en) * | 2013-11-15 | 2014-02-05 | 中国电子科技集团公司第四十研究所 | Permanent magnet arc extinction structure of transverse magnetic field |
| CN104966646A (en) * | 2015-07-03 | 2015-10-07 | 昆山国力真空电器有限公司 | Non-polar DC contactor |
| CN107331583A (en) * | 2017-08-15 | 2017-11-07 | 昆山国力源通新能源科技有限公司 | Nonpolarity high-voltage DC contactor arc quenching system structure |
| CN107749374A (en) * | 2017-11-02 | 2018-03-02 | 苏州安来强电子科技有限公司 | A kind of modified D.C. contactor arc extinguishing structure |
| CN208848831U (en) * | 2018-09-10 | 2019-05-10 | 上海良信电器股份有限公司 | A kind of permanent magnetism mounting structure of D.C. contactor |
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