CN109920704A - Anti- Lorentz force relay - Google Patents
Anti- Lorentz force relay Download PDFInfo
- Publication number
- CN109920704A CN109920704A CN201910240866.2A CN201910240866A CN109920704A CN 109920704 A CN109920704 A CN 109920704A CN 201910240866 A CN201910240866 A CN 201910240866A CN 109920704 A CN109920704 A CN 109920704A
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- Prior art keywords
- movable contact
- contact
- yoke plate
- lower magnetic
- stationary contact
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 238000010891 electric arc Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A kind of anti-Lorentz force relay, including insulating boot and yoke plate, the yoke plate and insulating boot constitute the chamber for accommodating movable contact and stationary contact, the movable contact includes the left movable contact and right movable contact for being fixed on movable contact spring left and right sides, movable contact spring is fixed on push rod top, push rod lower end passes through yoke plate to be located on the downside of yoke plate, the stationary contact includes left stationary contact and right stationary contact, several lower magnetic steels are equipped with below the movable contact spring, when movable contact and stationary contact closure contact, movable contact spring is formed by magnetic field and the magnetic field of lower magnetic steel after being powered and repels each other.The present invention below movable contact spring by being arranged several lower magnetic steels, repelled each other by lower magnetic steel magnetic field and the magnetic field of movable contact spring after energization, so that movable contact spring has a trend power separate to lower magnetic steel after being powered, to guarantee the closure contact of sound contact, to avoid because the movable contact caused by Lorentz force far from stationary contact side to the case where movement, so that using for relay is more stable, safely.
Description
Technical field
The present invention relates to a kind of high-voltage relays, and in particular to a kind of anti-Lorentz force relay.
Background technique
High-voltage relay includes two stationary contacts, two movable contacts, and stationary contact is fixed at the top of insulating boot by exit,
The part that exit is located at outside insulating boot is connect with conducting wire, and two movable contacts are fixed on movable contact spring, movable contact spring and push rod
Linkage, movable contact spring can move up after the energization of the coil of relay so that the contact closure of sound contact, to realize two stationary contacts
Connection between point.
In sound contact closure, sound contact and movable contact spring can be generated through overcurrent, sound contact closure contact position
Anti- Lorentz force, under the influence of Lorentz force, movable contact can be to far from the movement of stationary contact direction.It is such as new for high pressure field
Relay in energy vehicle or bus is with greater need for anti-Lorentz force.Relay in high pressure field can be through super-high-current, sound
The Lorentz force generated between contact is bigger, and there are the security risks that short-circuit failure is even burnt for relay.
Summary of the invention
The object of the present invention is to provide a kind of anti-Lorentz force effect is good, the anti-Lip river logical sequence of sound contact closure contact can guarantee
Hereby power relay.
To achieve the above object, the present invention adopts the following technical scheme: a kind of anti-Lorentz force relay, including insulating boot
With yoke plate, the yoke plate and insulating boot constitute the chamber for accommodating movable contact and stationary contact, and the movable contact includes solid
Due to the left movable contact and right movable contact of movable contact spring left and right sides, movable contact spring is fixed on push rod top, and push rod lower end passes through yoke plate
To be located on the downside of yoke plate, the stationary contact includes left stationary contact and right stationary contact, and left movable contact is corresponding with left stationary contact, and the right side is dynamic
Contact is corresponding with right stationary contact, and left stationary contact and right stationary contact pass through exit and be fixed at the top of insulating boot, the movable contact spring
Lower section is equipped with several lower magnetic steels, and when movable contact and stationary contact are closed when contacting, movable contact spring is formed by magnetic field and lower magnetic after being powered
Repel each other in the magnetic field of steel.
The present invention passes through the magnetic of movable contact spring behind lower magnetic steel magnetic field and energization by the way that several lower magnetic steels are arranged below movable contact spring
Field is repelled each other, so that movable contact spring has the trend power far from lower magnetic steel after being powered, to guarantee the closure contact of sound contact, with
The case where movable contact caused by avoiding because of Lorentz force is moved to separate stationary contact side, so that the use of relay is more
Stablize, safety.Wherein, only when relay coil is powered so that push rod rises, lower magnetic steel heteropolar can just repel each other with movable contact spring.
Wherein, lower magnetic steel of the invention can be used for the arc blow-out to electric arc produced by the disjunction of sound contact, can reinforce arc quenching effect.Its
In, when relay is equipped with the side magnet steel for carrying out arc blow-out to electric arc produced by the disjunction of sound contact, by adjusting lower magnetic steel
Upper and lower position and size so that lower magnetic steel magnetic field will not the magnetic field of opposite side magnet steel impact, the arc extinguishing ability of relay itself
It is unaffected.
Preferably, the support frame that the yoke plate is equipped with, support frame as described above has upwardly extended several positioning protrusion, institute
It states positioning protrusion and is formed with upwardly opening lower groove, the lower magnetic steel is fixed in the lower groove.
Preferably, being set on the downside of the movable contact spring there are two lower magnetic steel, two lower magnetic steels are in plane where push rod axis
It is symmetrical set for the plane of symmetry.
Preferably, the positioning protrusion is located relatively on the downside of lower groove and is formed with hollow groove, the hollow groove is under
Groove is formed with step structure to be supported to lower magnetic steel.
The present invention has the advantages that be able to achieve anti-Lorentz force to guarantee that sound contact closure contacts.And the present invention also has
The advantage for keeping relay arc extinguishing ability more preferable.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention.
Specific embodiment
Below according to the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, a kind of anti-Lorentz force relay of the invention, including insulating boot 1 and yoke plate 2, yoke plate 2 with
Insulating boot 1 constitutes the chamber for accommodating movable contact and stationary contact, and movable contact includes the dynamic touching in a left side for being fixed on 3 left and right sides of movable contact spring
Point 31 and right movable contact 32, movable contact spring 3 are fixed on 4 top of push rod, and 4 lower end of push rod passes through yoke plate 2 to be located under yoke plate 2
Side, institute contact include left stationary contact 11 and right stationary contact 12, and left movable contact 31 is corresponding with left stationary contact 11, right movable contact 32 and the right side
Stationary contact 12 is corresponding, and left stationary contact 11 and right stationary contact 12 pass through the top 10 that exit 13 is fixed on insulating boot 1, movable contact spring
3 left and right sides are equipped with one for carrying out the side magnet steel 5 of arc blow-out to electric arc produced by the disjunction of sound contact, set below movable contact spring 3
There are two lower magnetic steels 6, and when movable contact and stationary contact are closed when contacting, movable contact spring 3 is formed by magnetic field and lower magnetic steel 6 after being powered
Repel each other in magnetic field.
Wherein, the support frame 7 that yoke plate 2 is equipped with, support frame 7 have upwardly extended several positioning protrusion 71, positioning protrusion
71 are formed with upwardly opening lower groove, and lower magnetic steel 6 is fixed in lower groove.Wherein, two lower magnetic steels 6 are in 4 axis of push rod
Place plane is symmetrical set for the plane of symmetry.Positioning protrusion 71, which is located relatively on the downside of lower groove, is formed with hollow groove 72, in
Empty slot 72 is formed with step structure with lower groove to be supported to lower magnetic steel 6
The present invention passes through the magnetic field phase in lower magnetic steel magnetic field and movable contact spring after energization by the way that several lower magnetic steels are arranged below movable contact spring
Reprimand, so that movable contact spring has the trend power far from lower magnetic steel after being powered, to guarantee the closure contact of sound contact, to avoid
Because the movable contact caused by Lorentz force far from stationary contact side to the case where movement so that relay using more steady
Fixed, safety.Wherein, the setting of lower magnetic steel of the invention not only will not opposite side magnet steel arc blow-out adversely affect, lower magnetic steel can also
Reinforce arc blow-out effect, to improve the arc quenching effect of relay.
Claims (4)
1. a kind of anti-Lorentz force relay, it is characterised in that including insulating boot and yoke plate, the yoke plate and insulating boot structure
At the chamber for accommodating movable contact and stationary contact, the movable contact includes left movable contact and the right side for being fixed on movable contact spring left and right sides
Movable contact, movable contact spring are fixed on push rod top, and push rod lower end passes through yoke plate to be located on the downside of yoke plate, and the stationary contact includes
Left stationary contact and right stationary contact, left movable contact is corresponding with left stationary contact, and right movable contact is corresponding with right stationary contact, left stationary contact and the right side
Stationary contact passes through exit and is fixed at the top of insulating boot, and several lower magnetic steels are equipped with below the movable contact spring, when movable contact with it is quiet
When contact closure contacts, movable contact spring is formed by magnetic field and the magnetic field of lower magnetic steel after being powered and repels each other.
2. anti-Lorentz force relay according to claim 1, it is characterised in that the support frame that the yoke plate is equipped with,
Support frame as described above has upwardly extended several positioning protrusion, and the positioning protrusion is formed with upwardly opening lower groove, the lower magnetic
Steel is fixed in the lower groove.
3. anti-Lorentz force relay according to claim 1, it is characterised in that set on the downside of the movable contact spring there are two under
Magnet steel, two lower magnetic steels are in be symmetrical set using plane where push rod axis as the plane of symmetry.
4. anti-Lorentz force relay according to claim 2, it is characterised in that the positioning protrusion is located relatively at recessed
Hollow groove is formed on the downside of slot, the hollow groove is formed with step structure with lower groove to be supported to lower magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910240866.2A CN109920704B (en) | 2019-03-28 | 2019-03-28 | Lorentz force resistant relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910240866.2A CN109920704B (en) | 2019-03-28 | 2019-03-28 | Lorentz force resistant relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109920704A true CN109920704A (en) | 2019-06-21 |
| CN109920704B CN109920704B (en) | 2024-08-27 |
Family
ID=66967332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910240866.2A Active CN109920704B (en) | 2019-03-28 | 2019-03-28 | Lorentz force resistant relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109920704B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581044A (en) * | 2019-10-11 | 2019-12-17 | 蚌埠市双环电子集团股份有限公司 | High-voltage direct-current contactor capable of realizing rapid breaking |
| CN111415839A (en) * | 2020-03-17 | 2020-07-14 | 中国航天时代电子有限公司 | High-voltage direct-current contactor |
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2019
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| CN104091726A (en) * | 2014-07-04 | 2014-10-08 | 厦门宏发电力电器有限公司 | Direct-current relay |
| CN104882336A (en) * | 2015-03-31 | 2015-09-02 | 厦门宏发电力电器有限公司 | Arc extinction magnetic circuit resisting/matching electro-dynamic repulsion force and DC relay thereof |
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| CN110581044A (en) * | 2019-10-11 | 2019-12-17 | 蚌埠市双环电子集团股份有限公司 | High-voltage direct-current contactor capable of realizing rapid breaking |
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| CN111415839B (en) * | 2020-03-17 | 2022-05-20 | 中国航天时代电子有限公司 | High-voltage direct current contactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109920704B (en) | 2024-08-27 |
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