CN209626120U - A kind of static contact and contact pair with magnetic quenching - Google Patents
A kind of static contact and contact pair with magnetic quenching Download PDFInfo
- Publication number
- CN209626120U CN209626120U CN201920312938.5U CN201920312938U CN209626120U CN 209626120 U CN209626120 U CN 209626120U CN 201920312938 U CN201920312938 U CN 201920312938U CN 209626120 U CN209626120 U CN 209626120U
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- contact
- guide part
- interconnecting piece
- head
- stationary contact
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
The utility model discloses a kind of static contact and contact pair with magnetic quenching.Contact is to including static contact and moving contact.Static contact is formed by copper bar bending, including interconnecting piece, guide part and stationary contact head.Interconnecting piece and stationary contact head level, and be connected by vertical guide part.Interconnecting piece connects firewire connector.Moving contact is equipped with the contact block being in contact with stationary contact head.Contact block is located at the lower section on stationary contact head.The inside of interconnecting piece, guide part and the bending of stationary contact head, is provided with ferromagnetic magnetic conductance plate along interconnecting piece, guide part and stationary contact head.Ferromagnetic magnetic conductance plate is made of ferromagnetic material.Ferromagnetic magnetic conductance plate forms the second arc guide part along the ends bent on stationary contact head.Moving contact end is equipped with the first arc guide part.The contact of the present embodiment to the contact pair for being magnetic blow-out and step effect combines, using on-board the circuit breaker when, there is extraordinary arc quenching effect.
Description
Technical field
The utility model relates to switch the static contact of combined floodgate and moving contact, in particular to going out between static contact and moving contact
Arc technology.
Background technique
Contact of breaker arc extinguishing is generally divided into gas blast arc-quenching, magnetic quenching and vacuum extinction.Gas blast arc-quenching is to pass through electricity
The indoor air of contact where camber temperature heating contact, or by high arc temperature gasification adminicle, so that contact indoor and outdoor
Draught head is generated, so that electric arc is blown in arc quenching plate group in such a way that gas flows, realizes arc extinguishing.Magnetic quenching then utilizes
Electric current itself generates current field, by current field to the active force of electric arc, electric arc is blown in arc quenching plate group, realization is gone out
Arc.Vacuum extinction then utilizes the vacuum environment of arc-chutes, so that can not generate electric arc when moving contact and static contact combined floodgate or separating brake.
It should be evident that arc-chutes of the vacuum extinction mode due to needing to construct vacuum environment, with high costs, it is disconnected to be unsuitable for low-voltage platform area
The application of road device.The greatest problem of magnetic quenching is how the enough electric currents of magnetic field strength to be generated between moving contact and static contact
Magnetic field.
Summary of the invention
Problem to be solved in the utility model: how the enough electricity of magnetic field strength are generated between moving contact and static contact
Magnetic field is flowed, realizes the effect of magnetic quenching.
To solve the above problems, the scheme that the utility model uses is as follows:
A kind of static contact with magnetic quenching according to the present utility model, the static contact are formed by copper bar bending, packet
Include interconnecting piece, guide part and stationary contact head；Interconnecting piece and stationary contact head level, and be connected by vertical guide part；Interconnecting piece,
The inside of guide part and the bending of stationary contact head, is provided with ferromagnetic magnetic conductance plate along interconnecting piece, guide part and stationary contact head；Ferromagnetic magnetic
Guide plate is made of ferromagnetic material.
Further, the static contact according to the present utility model with magnetic quenching, ferromagnetic magnetic conductance plate is along stationary contact head
Ends bent forms the second arc guide part.
A kind of contact pair with magnetic quenching according to the present utility model, including static contact and moving contact；The stationary contact
Head is formed by copper bar bending, including interconnecting piece, guide part and stationary contact head；Interconnecting piece and stationary contact head level, and by vertical
Guide part be connected；Interconnecting piece connects firewire connector；The moving contact is equipped with the contact block being in contact with stationary contact head；Contact block
Positioned at the lower section on stationary contact head；The inside of interconnecting piece, guide part and the bending of stationary contact head, along interconnecting piece, guide part and stationary contact
Head is provided with ferromagnetic magnetic conductance plate；Ferromagnetic magnetic conductance plate is made of ferromagnetic material.
Further, the contact pair according to the present utility model with magnetic quenching, ferromagnetic magnetic conductance plate is along stationary contact head
Ends bent forms the second arc guide part；The moving contact end is equipped with the first arc guide part；First arc guide part is located at the second arc guide part
Underface.
The technical effect of the utility model is as follows: the static contact of the utility model by the remanent magnetism property of ferromagnetic magnetic conductance plate,
Magnetic quenching is realized, and combines the electric arc step effect and gas blast arc-quenching of arc guide part, so that so that breaker is with non-
Often good arc extinction performance, can be completed in a short time extinguishing arc.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model embodiment.
Wherein, 15 be support frame, and 21 be permanent magnet mechanism, and 222 be lifting guide pillar, and 23 be interlocking bar, and 24 be handle, and 33 are
It is driven snap-gauge, 51 be support plate, and 52 be conductive plate, and 521 be the first arc guide part, and 54 be W-shaped spring plate, and 55 be supporting rod, 56
It is contact block, 61 be interconnecting piece, and 62 be guide part, and 63 be stationary contact head, and 64 be ferromagnetic magnetic conductance plate, and 641 be the second arc guide part.
Specific embodiment
The utility model is described in further details with reference to the accompanying drawing.
The present embodiment is related to a kind of breaker driven by permanent magnet mechanism, including static contact, moving contact, permanent magnet mechanism
21, lifting guide pillar 222, interlocking bar 23, handle 24.The moving contact of the present embodiment is by the driving of permanent magnet mechanism 21 straight up and down dynamic
Contact.There are two static contacts, and moving contact both ends respectively correspond two static contacts, and when combined floodgate, two static contacts are respectively and moving contact
Both ends are connected, and realize electrical connection.
Moving contact includes support plate 51, conductive plate 52 and W-shaped spring plate 54.Conductive plate 52 and W-shaped spring plate 54 divide
It She Yu not about 51 support plate.Moving contact level is clamped in supporting rod 55 by supporting rod 55 for lifting guide pillar 222 and lifting is led
Between 222 bottom end of column.Lifting guide pillar 222 connects permanent magnet mechanism 21.Permanent magnet mechanism 21 is mounted on support frame 15.Lifting guide pillar
222 top connects interlocking bar 23 by transmission snap-gauge 33.Interlocking bar 23 is horizontally arranged on support frame 15, and can surround axis
Heart rotation.Handle 24 is mounted in interlocking bar 23.Support frame 15 is mounted in circuit breaker housing.Moving contact both ends be provided with it is quiet
The contact block 56 of contact.Contact block 56 is mounted on conductive plate 52.
Static contact is mounted in circuit breaker housing, is formed by copper bar bending, including interconnecting piece 61, guide part 62 and static contact
Portion 63.Interconnecting piece 61 and stationary contact head 63 are horizontal, and are connected by vertical guide part 62.Two static contacts are oppositely arranged.It is quiet
Contact part 63 is located at the lower section of interconnecting piece 61.Two movable contacts at moving contact both ends are located at two 6 stationary contacts of copper bar static contact
The lower section on head 63, specifically, two contact blocks 56 at moving contact both ends are located at immediately below stationary contact head 63, switch on of moving contact
When be in contact by two stationary contact heads 63 of two contact blocks 56 and two static contacts.One end of moving contact and one of stationary contact
The contact pair of head composition the utility model meaning.The both ends of moving contact and two static contacts form two contacts pair.Interconnecting piece 61
End connect firewire connector.Lifting guide pillar 222 is held between two guide parts 62 of two static contacts.Interconnecting piece 61 is led
The inside bent to portion 62 and stationary contact head 63, is provided with ferromagnetic magnetic conductance along interconnecting piece 61, guide part 62 and stationary contact head 63
Plate 64.Ferromagnetic magnetic conductance plate 64 is made of ferromagnetic material.In addition, the both ends setting of moving contact 5 has the first arc guide part 521 respectively.The
By 52 both ends of conductive plate, bending is formed obliquely for one arc guide part 521.Ferromagnetic magnetic conductance plate 64 along stationary contact head 63 ends bent
Form the second arc guide part 641.First arc guide part 521 is located at the lower section of the second arc guide part 641.
The working principle of the present embodiment is as follows: contact is in the arc-chutes of breaker.Arc extinguishing is provided in arc-chutes
Piece group.Arc quenching plate group is located at the outside of contact pair.The inside of contact pair is isolated by lifting guide pillar 222, so that on the inside of arc-chutes
Closing, and be open towards arc quenching plate group.Since high arc temperature heats air, the air expansion of heating also can be by electric arc toward arc quenching plate
Group direction is blown, and air-blowing effect is formed.After switch on of moving contact, electric current is flowed along stationary contact head 63, guide part 62 and interconnecting piece 61,
Electric current is flowed along stationary contact head 63, guide part 62 and interconnecting piece 61 to be bent on interconnecting piece 61, guide part 62 and stationary contact head 63
Inside formed current field.Current field magnetized ferromagnetic magnetic conductance plate 64, moment after separating brake, since ferromagnetic magnetic conductance plate 64 is ferromagnetic
Material, also there are remanent magnetism after magnetization.The remanent magnetism of ferromagnetic magnetic conductance plate 64 causes between the contact block 56 of moving contact and stationary contact head 63
There are remnant fields.The arc current direction between contact block 56 and stationary contact head 63 is resulted from perpendicular to the remnant field.By
This, remnant field acts on electric arc, so that electric arc is blown toward outside, that is, arc quenching plate group direction, forms magnetic blow-out effect.First leads arc
Portion 521 and the second arc guide part 641 are then that electric arc step effect is utilized.According to the step effect of electric arc, contact block 56 and stationary contact
Electric arc between head 63 can step between the first arc guide part 521 and the second arc guide part 641 so that electric arc is moved to arc quenching plate group
It is dynamic.After electric arc is moved to arc quenching plate group, eliminated after the arc quenching plate cutting being stacked.It is, open circuit involved in the present embodiment
Device is that a kind of magnetic blow-out, air-blowing, step effect combine the breaker for carrying out arc extinguishing.The static contact and moving contact of the present embodiment be then
The contact pair that magnetic blow-out and step effect combine.
Claims (4)
1. a kind of static contact with magnetic quenching, the static contact are formed by copper bar bending, including interconnecting piece (61), guide part
(62) and stationary contact head (63)；Interconnecting piece (61) and stationary contact head (63) are horizontal, and are connected by vertical guide part (62)；Its
It is characterized in that, the inside of interconnecting piece (61), guide part (62) and stationary contact head (63) bending, along interconnecting piece (61), guide part
(62) and stationary contact head (63) are provided with ferromagnetic magnetic conductance plate (64)；Ferromagnetic magnetic conductance plate (64) is made of ferromagnetic material.
2. having the static contact of magnetic quenching as described in claim 1, which is characterized in that ferromagnetic magnetic conductance plate (64) is along stationary contact
The ends bent on head (63) forms the second arc guide part (641).
3. a kind of contact pair with magnetic quenching, including static contact and moving contact；The static contact is formed by copper bar bending, packet
Include interconnecting piece (61), guide part (62) and stationary contact head (63)；Interconnecting piece (61) and stationary contact head (63) are horizontal, and by vertical
Guide part (62) be connected；Interconnecting piece (61) connects firewire connector；The moving contact is equipped with and is in contact with stationary contact head (63)
Contact block (56)；Contact block (56) is located at the lower section on stationary contact head (63)；It is characterized in that, interconnecting piece (61), guide part (62)
With the inside of stationary contact head (63) bending, interconnecting piece (61), guide part (62) and stationary contact head (63) are provided with ferromagnetic magnetic
Guide plate (64)；Ferromagnetic magnetic conductance plate (64) is made of ferromagnetic material.
4. having the contact pair of magnetic quenching as claimed in claim 3, which is characterized in that ferromagnetic magnetic conductance plate (64) is along stationary contact
The ends bent on head (63) forms the second arc guide part (641)；The moving contact end is equipped with the first arc guide part (521)；First
Arc guide part (521) is located at the underface of the second arc guide part (641).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920312938.5U CN209626120U (en) | 2019-03-13 | 2019-03-13 | A kind of static contact and contact pair with magnetic quenching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920312938.5U CN209626120U (en) | 2019-03-13 | 2019-03-13 | A kind of static contact and contact pair with magnetic quenching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209626120U true CN209626120U (en) | 2019-11-12 |
Family
ID=68456555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920312938.5U Active CN209626120U (en) | 2019-03-13 | 2019-03-13 | A kind of static contact and contact pair with magnetic quenching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209626120U (en) |
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2019
- 2019-03-13 CN CN201920312938.5U patent/CN209626120U/en active Active
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