CN206022242U - A kind of relay contacts mechanism of arc protection - Google Patents
A kind of relay contacts mechanism of arc protection Download PDFInfo
- Publication number
- CN206022242U CN206022242U CN201620963882.6U CN201620963882U CN206022242U CN 206022242 U CN206022242 U CN 206022242U CN 201620963882 U CN201620963882 U CN 201620963882U CN 206022242 U CN206022242 U CN 206022242U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- group
- arc
- spark chamber
- extinguishing grid
- 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.)
- Expired - Fee Related
Links
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 230000005684 electric field Effects 0.000 claims description 6
- 238000010891 electric arc Methods 0.000 abstract description 14
- 230000008033 biological extinction Effects 0.000 abstract description 2
- 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 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Abstract
The utility model discloses a kind of relay contacts mechanism of arc protection, the relay includes upper shell, lower house, moving contact and static contact, the moving contact is connected with the upper shell, the static contact is connected with the lower house, also include arc extinguishing grid pieces group and permanent magnet group, spark chamber is provided between the upper shell and the lower house, the permanent magnet group and the arc extinguishing grid pieces group are arranged in the spark chamber；A kind of relay contacts mechanism of arc protection of the utility model passes through to arrange arc extinguishing grid pieces group in spark chamber, the big electric arc for making which produce between moving contact and static contact, it is partitioned into multiple little electric arcs, reduce the loss to contact, add permanent magnet group in spark chamber simultaneously, the electric arc of generation is moved to arc extinguishing grid pieces group in magnetic field, increased its arc extinction performance.
Description
Technical field
The utility model is related to relay, more particularly to a kind of relay contacts mechanism of arc protection.
Background technology
Relay is a kind of electric control device, is when the change of input quantity (energizing quantity) reaches regulation requirement, electric
Make controlled volume that a kind of electrical equipment of predetermined Spline smoothing occurs in output circuit.It has control system (also known as input circuit) and
By the interactive relationship between control system (also known as output loop).It is commonly used in the control circuit for automating, it is actually
It is to go to control one kind " automatic switch " that high current is operated with small current.Relay during use, its moving contact and quiet
Electric arc being produced during the opening and closing of contact, and electric arc electric arc being a kind of gas discharge phenomenon, electric current passes through some dielectric (examples
Such as air) produced by moment spark.Electric arc can be caused to be lost to the contact of relay, cause the service life of relay significantly
Shortening, increased use cost.
Utility model content
The purpose of this utility model is that to solve the above problems and provides a kind of relay contacts machine of arc protection
Structure.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of relay contacts mechanism of arc protection, the relay include upper shell, lower house, moving contact and stationary contact
Head, the moving contact are connected with the upper shell, and the static contact is connected with the lower house, also include arc extinguishing grid pieces group and forever
Group of magnets, is provided with spark chamber between the upper shell and the lower house, and the permanent magnet group and the arc extinguishing grid pieces group are equal
It is arranged in the spark chamber；
The permanent magnet group includes the first permanent magnet and the second permanent magnet, first permanent magnet and second permanent magnet
The both sides of the spark chamber are separately positioned on, and first permanent magnet is polarity phase with the medial surface of second permanent magnet
Instead, first permanent magnet and second permanent magnet group into magnetic direction and the moving contact and the static contact between
Direction of an electric field is vertical, and the plane that the arc extinguishing grid pieces group is located is parallel with the magnetic direction and vertical with the direction of an electric field,
The arc extinguishing grid pieces group is connected with the spark chamber, and receives the one of the sensing of Lorentz force positioned at electric charge in the magnetic field
Side.
Specifically, between the arc extinguishing grid pieces group includes long grid and short grid, the long grid and the short grid successively
Every distribution.
Further, it is provided between first permanent magnet and the lateral surface and the spark chamber of second permanent magnet
Gear magnetic sheet.
The beneficial effects of the utility model are：
A kind of relay contacts mechanism of arc protection of the utility model passes through to arrange arc extinguishing grid pieces group in spark chamber so as to
The big electric arc that will be produced between moving contact and static contact, is partitioned into multiple little electric arcs, reduces the loss to contact, while going out
Add permanent magnet group in arc chamber, the electric arc of generation is moved to arc extinguishing grid pieces group in magnetic field, increased its arc extinction performance.
Description of the drawings
Fig. 1 is a kind of front view of the relay contacts mechanism of arc protection described in the utility model；
Fig. 2 is a kind of side view of the relay contacts mechanism of arc protection described in the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As depicted in figs. 1 and 2, the relay contacts mechanism of a kind of arc protection of the utility model, relay include upper shell
1st, lower house 2, moving contact 3 and static contact 4, moving contact 3 are connected with upper shell 1, and static contact 4 is connected with lower house 2, also includes going out
Arc grid group 7 and permanent magnet group 10, are provided with spark chamber 11, permanent magnet group 10 and arc extinguishing grid pieces between upper shell 1 and lower house 2
Group 7 is arranged in spark chamber 11, between arc extinguishing grid pieces group 7 includes long grid 8 and short grid 9, long grid 8 and short grid 9 successively
Every distribution.
Permanent magnet group 10 includes that the first permanent magnet 5 and the second permanent magnet 6, the first permanent magnet 5 and the second permanent magnet 6 are set respectively
Put the both sides in spark chamber, and the medial surface of the first permanent magnet 5 and the second permanent magnet 6 is opposite polarity, the first permanent magnet 5 and the
The magnetic direction of two 6 groups 10 one-tenth of permanent magnets is vertical with the direction of an electric field between moving contact 3 and static contact 4, and arc extinguishing grid pieces group 7 is located
Plane parallel with magnetic direction and vertical with direction of an electric field, arc extinguishing grid pieces group 7 is connected with spark chamber 11, and is existed positioned at electric charge
Receive in magnetic field the lateral surface of the side of the sensing of Lorentz force, the first permanent magnet 5 and the second permanent magnet 6 and spark chamber 11 it
Between be provided with gear magnetic sheet.
A kind of operation principle of the relay contacts mechanism of arc protection of the utility model is as follows：
Moving contact 3 produces electric arc with static contact 4 when contacting, and electric arc is in the first permanent magnet 5 and the second permanent magnet 6
Acted on by Lorentz force in the magnetic field of 10 one-tenth of group so as to move to the installation site of arc extinguishing grid pieces group 7.
When big electric arc is moved to arc extinguishing grid pieces group 7, multiple little electric arcs are partitioned into by long grid 8 first, little electric arc is being grown
Continue to move between grid 8, then less electric arc is partitioned into by short grid 9, so as to the electric arc for further reducing is to relay
Impact.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, every according to skill of the present utility model
The technology deformation that art scheme is made, each falls within protection domain of the present utility model.
Claims (3)
1. the relay contacts mechanism of a kind of arc protection, the relay include upper shell, lower house, moving contact and static contact,
The moving contact is connected with the upper shell, and the static contact is connected with the lower house, it is characterised in that：Also include arc-chute
Piece group and permanent magnet group, are provided with spark chamber between the upper shell and the lower house, the permanent magnet group and the arc extinguishing
Grid group is arranged in the spark chamber；
The permanent magnet group includes the first permanent magnet and the second permanent magnet, first permanent magnet and second permanent magnet difference
It is arranged on the both sides of the spark chamber, and the medial surface of first permanent magnet and second permanent magnet is opposite polarity, institute
State the first permanent magnet and second permanent magnet group into magnetic direction and the electric field between the moving contact and the static contact
Direction is vertical, and the plane that the arc extinguishing grid pieces group is located is parallel with the magnetic direction and vertical with the direction of an electric field, described
Arc extinguishing grid pieces group is connected with the spark chamber, and receives the side of the sensing of Lorentz force positioned at electric charge in the magnetic field.
2. the relay contacts mechanism of a kind of arc protection according to claim 1, it is characterised in that：The arc extinguishing grid pieces group
Including long grid and short grid, the long grid is spaced apart successively with the short grid.
3. the relay contacts mechanism of a kind of arc protection according to claim 1, it is characterised in that：First permanent magnet
Gear magnetic sheet is provided with and the lateral surface and the spark chamber of second permanent magnet between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620963882.6U CN206022242U (en) | 2016-08-26 | 2016-08-26 | A kind of relay contacts mechanism of arc protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620963882.6U CN206022242U (en) | 2016-08-26 | 2016-08-26 | A kind of relay contacts mechanism of arc protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206022242U true CN206022242U (en) | 2017-03-15 |
Family
ID=58252930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620963882.6U Expired - Fee Related CN206022242U (en) | 2016-08-26 | 2016-08-26 | A kind of relay contacts mechanism of arc protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206022242U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887222A (en) * | 2017-12-15 | 2018-04-06 | 国网江苏省电力有限公司淮安供电分公司 | Permanent magnetism arc extinguishing livewire work crowbar switch |
| CN109360755A (en) * | 2018-11-26 | 2019-02-19 | 北京人民电器厂有限公司 | Arc-extinguishing mechanism and dc circuit breaker |
| CN109585224A (en) * | 2017-09-29 | 2019-04-05 | 浙江正泰电器股份有限公司 | DC relay |
-
2016
- 2016-08-26 CN CN201620963882.6U patent/CN206022242U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585224A (en) * | 2017-09-29 | 2019-04-05 | 浙江正泰电器股份有限公司 | DC relay |
| CN109585224B (en) * | 2017-09-29 | 2024-04-12 | 浙江正泰电器股份有限公司 | DC relay |
| CN107887222A (en) * | 2017-12-15 | 2018-04-06 | 国网江苏省电力有限公司淮安供电分公司 | Permanent magnetism arc extinguishing livewire work crowbar switch |
| CN107887222B (en) * | 2017-12-15 | 2020-09-08 | 国网江苏省电力有限公司淮安供电分公司 | Permanent-magnet arc extinguishing live working arc extinguishing switch |
| CN109360755A (en) * | 2018-11-26 | 2019-02-19 | 北京人民电器厂有限公司 | Arc-extinguishing mechanism and dc circuit breaker |
| CN109360755B (en) * | 2018-11-26 | 2021-04-27 | 北京人民电器厂有限公司 | Arc extinguishing mechanism and direct current circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20180826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |