CN209675210U - A kind of anti-Lorentz force relay - Google Patents
A kind of anti-Lorentz force relay Download PDFInfo
- Publication number
- CN209675210U CN209675210U CN201920403604.9U CN201920403604U CN209675210U CN 209675210 U CN209675210 U CN 209675210U CN 201920403604 U CN201920403604 U CN 201920403604U CN 209675210 U CN209675210 U CN 209675210U
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- movable contact
- contact
- stationary contact
- stationary
- spring
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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, the stationary contact includes left stationary contact and right stationary contact, left stationary contact and right stationary contact pass through exit and are fixed at the top of insulating boot, several upper magnetic steels are equipped with above the movable contact spring, when movable contact and stationary contact closure contact, it is attracting that movable contact spring is formed by magnetic field and the magnetic field of upper magnetic steel after being powered.The utility model above movable contact spring by being arranged several upper magnetic steels, it is attracting by upper magnetic steel magnetic field and the magnetic field of movable contact spring after energization, so as to attract each other between movable contact spring and magnet steel, so that movable contact spring has the trend power moved up, 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 upper magnetic steels are equipped with above reed, when movable contact and stationary contact closure contact, movable contact spring be formed by after being powered magnetic field with
The magnetic field of upper magnetic steel is attracting.
The utility model passes through movable contact spring behind upper magnetic steel magnetic field and energization by the way that several upper magnetic steels are arranged above movable contact spring
Magnetic field it is attracting, it is dynamic to guarantee so that movable contact spring has the trend power moved up so as to attract each other between movable contact spring and magnet steel
The closure of stationary contact contacts, to avoid because the movable contact caused by Lorentz force far from stationary contact side to the case where movement,
So that relay uses more stable, safety.Wherein, only when relay coil is powered so that push rod rises, upper magnetic steel
Just meeting homopolarity is attracting with movable contact spring.Wherein, the upper magnetic steel of the utility model can be used for electric arc produced by the disjunction of sound contact
Arc blow-out, arc quenching effect can be reinforced.Wherein, when relay is equipped with for carrying out arc blow-out to electric arc produced by the disjunction of sound contact
When the magnet steel of side, by adjust upper 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 cause shadow
It rings, the arc extinguishing ability of relay itself is unaffected.
Preferably, the positioning protrusion extended downwardly at the top of the insulating boot, the positioning protrusion, which is formed with, to be opened downwards
The upper groove of mouth, the upper magnetic steel are fixed in the upper groove.
Preferably, the quantity of the positioning protrusion is one, the positioning protrusion is located at right above push rod, left movable contact
Maximum distance between upper surface and left stationary contact lower end surface be greater than between the push rod upper surface and upper magnetic steel lower end surface it is maximum away from
From.
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, stationary 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
Top be equipped with a upper magnetic steel 6, when movable contact and stationary contact closure contact when, movable contact spring 3 be powered after be formed by magnetic field with it is upper
The magnetic field of magnet steel 6 is attracting.
Wherein, the positioning protrusion 101 that the top 10 of insulating boot 1 extends downwardly, positioning protrusion 101 are formed with downwardly open
Upper groove, upper magnetic steel 6 are fixed in upper groove by mode for dispensing glue.Positioning protrusion 101 is located at right above push rod 4, the dynamic touching in a left side
Maximum distance between 31 upper surfaces of point and 11 lower end surface of left stationary contact is greater than between 6 lower end surface of 4 upper surface of push rod and upper magnetic steel most
Big distance.
The utility model passes through movable contact spring behind upper magnetic steel magnetic field and energization by the way that several upper magnetic steels are arranged above movable contact spring
Magnetic field it is attracting, it is dynamic to guarantee so that movable contact spring has the trend power moved up so as to attract each other between movable contact spring and magnet steel
The closure of stationary contact contacts, to avoid because the movable contact caused by Lorentz force far from stationary contact side to the case where movement,
So that relay uses more stable, safety.Wherein, the setting of the upper magnetic steel of the utility model not only will not opposite side magnet steel blow
Arc adversely affects, and upper magnetic steel can also reinforce arc blow-out effect, to improve the arc quenching effect of relay.
Claims (3)
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 upper magnetic steels are equipped with above the movable contact spring, when movable contact with it is quiet
When contact closure contacts, it is attracting that movable contact spring is formed by magnetic field and the magnetic field of upper magnetic steel after being powered.
2. a kind of anti-Lorentz force relay according to claim 1, it is characterised in that the top of the insulating boot is downward
The positioning protrusion of extension, the positioning protrusion are formed with downwardly open upper groove, and the upper magnetic steel is fixed on the upper groove
It is interior.
3. a kind of anti-Lorentz force relay according to claim 2, it is characterised in that the quantity of the positioning protrusion is
One, the positioning protrusion is located at right above push rod, and the maximum distance between left movable contact upper surface and left stationary contact lower end surface is big
Maximum distance between the push rod upper surface and upper magnetic steel lower end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920403604.9U CN209675210U (en) | 2019-03-28 | 2019-03-28 | A kind of anti-Lorentz force relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920403604.9U CN209675210U (en) | 2019-03-28 | 2019-03-28 | A kind of anti-Lorentz force relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209675210U true CN209675210U (en) | 2019-11-22 |
Family
ID=68572988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920403604.9U Active CN209675210U (en) | 2019-03-28 | 2019-03-28 | A kind of anti-Lorentz force relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209675210U (en) |
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2019
- 2019-03-28 CN CN201920403604.9U patent/CN209675210U/en active Active
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