CN209641597U - The arc-control device of fast arc extinction - Google Patents
The arc-control device of fast arc extinction Download PDFInfo
- Publication number
- CN209641597U CN209641597U CN201822221239.8U CN201822221239U CN209641597U CN 209641597 U CN209641597 U CN 209641597U CN 201822221239 U CN201822221239 U CN 201822221239U CN 209641597 U CN209641597 U CN 209641597U
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- China
- Prior art keywords
- arc
- side plate
- control device
- magnetic conductive
- bridging board
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Abstract
The utility model discloses a kind of arc-control devices of fast arc extinction, including bridging board and the side plate for being symmetricly set on bridging board two sides, the bridging board and the side plate of two sides are integrally formed and U-shaped setting, is symmetrically arranged with magnetic conductive part on the two sides side plate, and two magnetic conductive parts are in being oppositely arranged.The utility model provides a kind of bigger than prior art magnetic blow-out power, the arc-control device of the electric arc disengaging faster fast arc extinction of contact speed.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, especially a kind of arc-control device of fast arc extinction.
Background technique
In A.C. contactor, in order to extinguish electric arc rapidly, main contact is protected, product service life is improved, usually all can
Arc extinction part is provided in A.C. contactor, the shape of arc extinction part is generally the U-shaped arc extinction part of direct bending and molding, including bridge joint
Plate and the side plate that bridging board two sides are arranged in, dynamic/static contact in A.C. contactor are located at the one end of both side plate far from bridging board
End between, the arc current that is formed between dynamic/static contact in A.C. contactor forms magnetic field along arc extinction part, and arc current exists
Can be mobile to arc extinction part under the action of magnetic field line, the magnetic fields in arc extinction part are in magnetic stronger on arc current, that electric arc is subject to
Blowing force is bigger, and the speed that electric arc leaves contact to arc extinction part is faster, and the effect of arc extinguishing is better.The magnetic field that existing arc extinction part generates
It focuses primarily upon in arc extinction part ontology, magnetic is then formed by the air between end of the both side plate far from one end of bridging board and is returned
Road, the magnetic field line of air part act on arc current, generate magnetic blow-out effect, but the both side plate distance of existing arc extinction part compared with
Far, the magnetic field line for acting on arc current relatively disperses, and magnetic blow-out power is smaller, and electric arc disengaging contact speed is slower, is easy to cause contact
Scaling loss reduces product service life.
Utility model content
It is a kind of bigger than prior art magnetic blow-out power that in order to overcome the deficiencies of the prior art, the utility model provides, electric arc
It is detached from the arc-control device of the faster fast arc extinction of contact speed.
To achieve the goals above, the technical solution adopted in the utility model is: a kind of arc-control device of fast arc extinction, packet
Include bridging board and the side plate for being symmetricly set on bridging board two sides, the side plate of the bridging board and two sides is integrally formed and U-shaped sets
It sets, magnetic conductive part is symmetrically arranged on the two sides side plate, two magnetic conductive parts are in be oppositely arranged.
Using the above scheme, the arc current of generation can form magnetic field around, according to the right-hand rule, the direction of magnetic field line
For counterclockwise, since the magnetic conductivity of arc extinction part is much larger than air, magnetic field line is concentrated mainly on arc extinction part and passes through
Air forming circuit between the side plate of two sides.Arc current is acted on by upward magnetic field line, can be sentenced according to left hand rule
For disconnected arc current out by the active force to arc extinction part bridging board direction, arc current leaves contact under the action of the active force
Onto bridging board, magnetic conductive part is symmetrically arranged on the side plate of two sides, two magnetic conductive parts are in being oppositely arranged, due to the magnetic conductance of magnetic conductive part
Rate is higher than air, therefore the magnetic wire between two magnetic conductive parts is more concentrated, and the magnetic blow-out power for acting on arc current is bigger, energy
It reaches so that arc current is faster detached from contact and moves to bridging board.
As the further setting of the utility model, including moving contact and static contact, the moving contact and static contact are all provided with
It sets between both side plate, the line of centres between described two magnetic conductive parts is between moving contact and static contact.
Using the above scheme, the magnetic blow-out power between two magnetic conductive parts is enabled accurately to act on moving contact and static contact
Between on the arc current that generates, further improve the stability of product.
The line of centres and moving contact and stationary contact as the further setting of the utility model, between described two magnetic conductive parts
Center line between head is vertical setting and in the same plane.
Using the above scheme, the magnetic acted on the arc current generated between moving contact and static contact is further improved
Blowing force enables arc current to be rapidly separated contact.
As the further setting of the utility model, the lateral edge of described two side plates be symmetrical arranged it is fluted, described two
Bending part is provided in a groove, the magnetic conductive part is bent inwards by two bending parts formed respectively.
Using the above scheme, it enables to the structure of product simpler, processes more convenient.
As the further setting of the utility model, the bending part and the side plate are integrally formed and are arranged.
Using the above scheme, it is integrally formed setting and further facilitates processing, and can be improved the stability of product structure,
The utility model is further described with reference to the accompanying drawing.
Detailed description of the invention
Attached drawing 1 is the appearance diagram 1 of the utility model specific embodiment arc quenching plate；
Attached drawing 2 is the appearance diagram 2 of the utility model specific embodiment arc quenching plate；
Attached drawing 3 is the appearance diagram 1 that the utility model specific embodiment is further arranged；
Attached drawing 4 is the appearance diagram 2 that the utility model specific embodiment is further arranged；
Attached drawing 5 is the arc current stress diagram of the utility model specific embodiment；
Attached drawing 6 is the mobile schematic diagram of arc current of the utility model specific embodiment；
The enlarged drawing in the portion A in 7 Fig. 1 of attached drawing；
The enlarged drawing in the portion B in 8 Fig. 3 of attached drawing.
Specific embodiment
Specific embodiment of the utility model as shown in figures 1-8, a kind of arc-control device of fast arc extinction, including bridging board 1
With the side plate 2 for being symmetricly set on 1 two sides of bridging board, be lower than the upper edge of both side plate on bridging board 1 along x, bridging board it is lower along y high
In the lower edge of both side plate, the side plate 2 of the bridging board 1 and two sides is integrally formed and U-shaped setting, shown in Fig. 5, the electric arc of generation
Electric current can form magnetic field around, and according to the right-hand rule, the direction of magnetic field line a is counterclockwise, due to the magnetic conductance of arc extinction part
Rate is much larger than air, therefore the air that magnetic field line a is concentrated mainly on arc extinction part and between the side plate 2 for passing through two sides is formed back
Road.Effect of the arc current between both side plate by upward magnetic field line a1 can judge electric arc electricity according to left hand rule
For stream by the active force b to 1 direction of arc extinction part bridging board, arc current leaves contact to bridge joint under the action of active force b
On plate 1, is corresponded on the bridging board 1 and be provided with several raised 11 on U-shaped inner concave, raised 11 setting in a strip shape.Institute
It states and is provided with several airflow holes 12 on bridging board 1.The airflow hole 12 is set to junction between protrusion 11 and bridging board 1, institute
Airflow hole 12 is stated along the length direction setting in a strip shape of protrusion 11.Described raised 11 in being uniformly arranged on bridging board 1 up and down, if
It does described raised 11 to extend towards 1 liang of side direction of bridging board, the cross sectional shape semicircular in shape in raised 11 width direction.
Further it is arranged in the present embodiment, is symmetrically arranged with magnetic conductive part 21, two magnetic conductive parts 21 on the two sides side plate 2
In being oppositely arranged, since the magnetic conductivity of magnetic conductive part 21 is higher than air, the magnetic wire between two magnetic conductive parts 21 more collects
In, the magnetic blow-out power for acting on arc current is bigger, and arc current is enabled to faster to be detached from contact and move to bridging board 1
It is dynamic.
In the present embodiment, including moving contact 3 and static contact 4, the moving contact 3 and static contact 4 are arranged at both side plate 2
Between, the line of centres between described two magnetic conductive parts 21 is between moving contact 3 and static contact 4.Described two magnetic conductive parts 21
Between the line of centres and moving contact 3 and static contact 4 between center line be vertical setting and in the same plane.Described two
The lateral edge of a side plate 2 is symmetrical arranged fluted 22, and bending part 221, the magnetic conductive part are provided in described two grooves 22
21 are bent inwards by two bending parts 221 respectively forms.The bending part 221 is integrally formed with the side plate 2 to be arranged.
Further setting, including moving conductive plate 31, quiet conductive plate 41 in the present embodiment, the static contact 4 are arranged quiet
41 one end of conductive plate, quiet 41 one end of conductive plate are arranged below bridging board 1 and between both side plate 2, and quiet conductive plate 41 is another
End extends towards 1 rear of bridging board, and described quiet 41 one end of conductive plate is provided with an arc striking piece 5, and one end 51 of the arc striking piece 5 is bonded
It is arranged on quiet conductive plate 41, the other end 52 is extended at the lower edge of bridging board 1, the arc striking piece 5 and bridging board 1
The distance between lower edge is less than the distance between quiet conductive plate 41 and both side plate 2, by arc striking piece 5 by the electric arc of quiet conductive plate 41
Electric current is directed on the bridging board 1 of arc extinction part and forms longer electric arc c with the arc current on moving conductive plate 31.The striking
The width of one end 51 of piece 5 is greater than the width of 5 other end 52 of arc striking piece and the width of 5 other end 52 of arc striking piece is gradually small.It is described to draw
One end 51 of arcs 5 is arranged close to static contact 4 and the distance between one end 51 of arc striking piece 5 and static contact 4 are less than quiet conductive plate
The distance between 41 and both side plate 2.
In the present embodiment, the arc striking piece 5 is ferromagnetic material.
The utility model is not limited to above-mentioned specific embodiment, and persons skilled in the art are according to the utility model public affairs
The content opened can be implemented the utility model or all using the utility model using other a variety of specific embodiments
Design structure and thinking, do simple change or change, both fall within the protection scope of the utility model.
Claims (5)
1. a kind of arc-control device of fast arc extinction, including bridging board and the side plate for being symmetricly set on bridging board two sides, the bridge joint
Plate and the integrated molding of the side plate of two sides and U-shaped setting, it is characterised in that: it is symmetrically arranged with magnetic conductive part on the two sides side plate,
Two magnetic conductive parts are in be oppositely arranged.
2. the arc-control device of fast arc extinction according to claim 1, it is characterised in that: including moving contact and static contact, institute
State moving contact and static contact be arranged between both side plate, the line of centres between described two magnetic conductive parts be located at moving contact with it is quiet
Between contact.
3. the arc-control device of fast arc extinction according to claim 2, it is characterised in that: between described two magnetic conductive parts
Center line between heart line and moving contact and static contact is vertical setting and in the same plane.
4. the arc-control device of fast arc extinction according to claim 1 or 2 or 3, it is characterised in that: the side of described two side plates
It is fluted along being symmetrical arranged, be provided with bending part in described two grooves, the magnetic conductive part respectively from two bending parts to
Inner bending is formed.
5. the arc-control device of fast arc extinction according to claim 4, it is characterised in that: the bending part and the side plate one
Body formed setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822221239.8U CN209641597U (en) | 2018-12-27 | 2018-12-27 | The arc-control device of fast arc extinction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822221239.8U CN209641597U (en) | 2018-12-27 | 2018-12-27 | The arc-control device of fast arc extinction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209641597U true CN209641597U (en) | 2019-11-15 |
Family
ID=68476118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822221239.8U Active CN209641597U (en) | 2018-12-27 | 2018-12-27 | The arc-control device of fast arc extinction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209641597U (en) |
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2018
- 2018-12-27 CN CN201822221239.8U patent/CN209641597U/en active Active
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