CN209447747U - Anti- Lorentz force relay - Google Patents
Anti- Lorentz force relay Download PDFInfo
- Publication number
- CN209447747U CN209447747U CN201920403878.8U CN201920403878U CN209447747U CN 209447747 U CN209447747 U CN 209447747U CN 201920403878 U CN201920403878 U CN 201920403878U CN 209447747 U CN209447747 U CN 209447747U
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- China
- Prior art keywords
- movable contact
- contact
- yoke plate
- lower magnetic
- stationary contact
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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 utility model 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 the trend power far from lower magnetic steel side 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 utility model 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 purpose of the utility model is to provide a kind of anti-Lorentz force effect is good, the anti-of sound contact closure contact can guarantee
Lorentz force relay.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of anti-Lorentz force relay, including it is exhausted
Edge cover and yoke plate, the yoke plate and insulating boot constitute the chamber for accommodating movable contact and stationary contact, the movable contact packet
The left movable contact and right movable contact for being fixed on movable contact spring left and right sides are included, movable contact spring is fixed on push rod top, and push rod lower end passes through yoke
Iron plate is to be located on the downside of yoke plate, and the stationary contact includes left stationary contact and right stationary contact, and left movable contact is corresponding with left stationary contact,
Right movable 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, described dynamic
Several lower magnetic steels are equipped with below reed, when movable contact and stationary contact closure contact, movable contact spring be formed by after being powered magnetic field with
Repel each other in the magnetic field of lower magnetic steel.
The utility model passes through 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
Magnetic field repel each other so that movable contact spring has the trend power far from lower magnetic steel side after being powered, to guarantee the closure of sound contact
Contact, to avoid because the movable contact caused by Lorentz force far from stationary contact side to the case where movement, so that relay
Use more stable, safety.Wherein, only when relay coil is powered so that push rod rises, lower magnetic steel and movable contact spring just meeting
It is heteropolar to repel each other.Wherein, the lower magnetic steel of the utility model can be used for the arc blow-out to electric arc produced by the disjunction of sound contact, can reinforce
Arc quenching effect.Wherein, 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, pass through
Adjust 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, relay itself
Arc extinguishing ability be 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 utility model has the advantages that be able to achieve anti-Lorentz force to guarantee that sound contact closure contacts.And this is practical new
Type also has the advantages that keep relay arc extinguishing ability more preferable.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model.
Specific embodiment
The utility model is further described below according to the drawings and specific embodiments.
As shown in Figure 1, a kind of anti-Lorentz force relay of the utility model, including insulating boot 1 and yoke plate 2, yoke
Plate 2 and insulating boot 1 constitute the chamber for accommodating movable contact and stationary contact, and movable contact includes being fixed on 3 left and right sides of movable contact spring
Left movable contact 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 at yoke
2 downside of plate, institute contact includes 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 is corresponding with right stationary contact 12, and left stationary contact 11 and right stationary contact 12 pass through the top 10 that exit 13 is fixed on insulating boot 1,
3 left and right sides of movable contact spring is equipped with one for carrying out the side magnet steel 5 of arc blow-out, movable contact spring 3 to electric arc produced by the disjunction of sound contact
Lower section is set there are two lower magnetic steel 6, and when movable contact and stationary contact are closed when contacting, movable contact spring 3 is formed by magnetic field under after being powered
Repel each other in the magnetic field of magnet steel 6.
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 utility model passes through 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
Magnetic field repel each other so that movable contact spring has the trend power far from lower magnetic steel side after being powered, to guarantee the closure of sound contact
Contact, to avoid because the movable contact caused by Lorentz force far from stationary contact side to the case where movement, so that relay
Use more stable, safety.Wherein, the setting of the lower magnetic steel of the utility model not only will not opposite side magnet steel arc blow-out cause negative shadow
It rings, 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 |
|---|---|---|---|
| CN201920403878.8U CN209447747U (en) | 2019-03-28 | 2019-03-28 | Anti- Lorentz force relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920403878.8U CN209447747U (en) | 2019-03-28 | 2019-03-28 | Anti- Lorentz force relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209447747U true CN209447747U (en) | 2019-09-27 |
Family
ID=68034138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920403878.8U Active CN209447747U (en) | 2019-03-28 | 2019-03-28 | Anti- Lorentz force relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209447747U (en) |
-
2019
- 2019-03-28 CN CN201920403878.8U patent/CN209447747U/en active Active
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