CN206564205U - A kind of D.C. contactor is non-to wait wall thickness arc extinguishing storehouse - Google Patents
A kind of D.C. contactor is non-to wait wall thickness arc extinguishing storehouse Download PDFInfo
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- CN206564205U CN206564205U CN201720337167.6U CN201720337167U CN206564205U CN 206564205 U CN206564205 U CN 206564205U CN 201720337167 U CN201720337167 U CN 201720337167U CN 206564205 U CN206564205 U CN 206564205U
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- heat radiating
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- metal grid
- radiating metal
- permanent magnets
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Abstract
The utility model discloses a kind of non-wait in wall thickness arc extinguishing storehouse, including warehouse, warehouse of D.C. contactor and is provided with movable contact and two stationary contacts；Warehouse inwall is respectively equipped with two pieces of permanent magnets and two heat radiating metal grid, and two pieces of permanent magnets are located at movable contact both sides and identical with movable contact direction, and the relative two sides opposite polarity of two pieces of permanent magnets；Two heat radiating metal grid and two pieces of permanent magnets are perpendicular, are respectively arranged on two other inwall of warehouse；Heat radiating metal grid is curved, and the inner side cambered surface of heat radiating metal grid is raised provided with one group of tip；The sense of current of the magnetic line of force between dynamic and static contact between two pieces of permanent magnets, it is raised by the tip of heat radiating metal grid, electric arc is carried out to be divided into short arc, so that arc temperature is reduced and extinguished rapidly；It is effectively reduced the burning of electric arc continuous high temperature and loss, adhesion and arc extinguishing bulkhead calcination etc. harmful effect is produced to contact, so as to improves the safety in utilization and service life of contactor.
Description
Technical field
The utility model is related to technical field of electric equipment, and specifically a kind of D.C. contactor is non-to wait wall thickness arc extinguishing storehouse.
Background technology
With the continuous development of scientific technology, in industries such as electric automobile, engineering machinery, luminous energy, wind energy plants, tend to
Using 100~more than 500VDC DC power system, to provide higher power.Now matched performance is best
D.C. contactor be sealed contactor.Zero crossing due to direct current not as alternating current so can not put out naturally
Go out, therefore the arc quenching system of D.C. contactor directly determines arc extinguishing ability, and arc extinguishing ability determines the switching capacity of contactor
And the life-span.
Experiment is proved, when cut-offfing in an atmosphere or sealing voltage exceedes 0.5A circuit more than 10V, electric current, in contact
Can be produced in gap (or arc gap) extreme temperatures, brightness it is extremely strong and can be conductive gas, referred to as electric arc.For there is contact
For electrical equipment, when occurring mainly with contact disconnecting circuit due to electric arc, high temperature is by scaling loss contact and insulation, under serious conditions even
Cause phase fault, electrical equipment blast, lead to fire, jeopardize the safety of personnel and equipment.
The arc quenching method of D.C. contactor have natural arc extinguishing, metal grid arc extinguishing, vacuum extinction, pressed gas arc extinguishing, from
The forms such as body magnetic blow-out combination metal grid arc extinguishing, permanent magnetism magnetic quenching, pressed gas combination permanent magnetism magnetic quenching.But these arc extinguishings
Mode all has itself advantage and disadvantage.
At present, permanent magnetism magnetic quenching be electric arc in the presence of magnetic blow-out power, the wall of arc extinguishing storehouse two is blowed to, so as to arc extinguishing bulkhead
Calcination and galvano-cautery are carried out, prolonged corrosion and calcination can cause arc extinguishing storehouse to lose sealing, most always cause HVDC to connect
Tentaculum fails.
Utility model content
The purpose of this utility model is to provide that a kind of D.C. contactor is non-waits wall thickness arc extinguishing storehouse, and the arc extinguishing storehouse reduces electricity
The burning of arc continuous high temperature produces the harmful effects such as loss, adhesion and arc extinguishing bulkhead calcination to contact, improves the use of contactor
Security and service life.
The utility model solves the technical scheme that its technical problem used：
A kind of non-wait in wall thickness arc extinguishing storehouse, including warehouse, warehouse of D.C. contactor is provided with movable contact and two stationary contacts；Institute
State warehouse inwall and be respectively equipped with two pieces of permanent magnets and two heat radiating metal grid, two pieces of permanent magnets are located at movable contact both sides and with moving
Contact direction is identical, and the relative two sides opposite polarity of two pieces of permanent magnets；Two heat radiating metal grid are hung down with two pieces of permanent magnetism body phases
Directly, it is respectively arranged on two other inwall of warehouse.
Further, the heat radiating metal grid is curved, and the inner side cambered surface of heat radiating metal grid is convex provided with one group of tip
Rise.
The beneficial effects of the utility model are：Electricity of the magnetic line of force between dynamic and static contact between two pieces of permanent magnets
Direction is flowed, electric arc that is concentration or being possible to be superimposed is disperseed, elongated and blowed to heat radiating metal grid, passes through heat radiating metal grid
Tip it is raised, electric arc is carried out to be divided into short arc, so that arc temperature is reduced and extinguished rapidly；Heat radiating metal grid is relative
Ground adds the thickness of warehouse wherein both sides, warehouse is turned into non-and waits wall thickness, is effectively reduced the burning pair of electric arc continuous high temperature
Contact produces loss, adhesion and arc extinguishing bulkhead calcination etc. harmful effect, so as to improve the safety in utilization of contactor and make
Use the life-span.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is schematic perspective view of the present utility model, omits warehouse；
Fig. 3 is partial assembled top view of the present utility model；
Fig. 4 is the enlarged diagram of heat radiating metal grid in Fig. 3；
Fig. 5 is the distribution schematic diagram of the utility model magnetic line of force；
Fig. 6 is the utility model sense of current and arc blow-out direction schematic diagram.
Embodiment
With reference to shown in Fig. 1~4, a kind of D.C. contactor of the utility model offer is non-to wait wall thickness arc extinguishing storehouse, including warehouse 1,
Movable contact 2 and two stationary contacts 3 are provided with warehouse 1；The inwall of warehouse 1 is respectively equipped with two pieces of permanent magnets 4 and two heat radiating metal grid
Piece 5, two pieces of permanent magnets 4 are located at the both sides of movable contact 2 and identical with movable contact direction, and the relative two sides polarity of two pieces of permanent magnets 4
Conversely；Two heat radiating metal grid 5 and two pieces of permanent magnets 4 are perpendicular, are respectively arranged on two other inwall of warehouse 1；As excellent
Choosing, heat radiating metal grid 5 is curved, and the inner side cambered surface of heat radiating metal grid 5 is provided with one group of sophisticated projection 5a.
With reference to shown in Fig. 5 and Fig. 6, after movable contact 2 and two 3 adhesives of stationary contact, the electric current side between dynamic and static contact
Vertical to the magnetic line of force between two pieces of permanent magnets, the magnetic line of force forms the diversity level of relatively strong and comparatively dense in contact disjunction face
Component, the different magnetic blow-out power in direction is produced to the electric arc of each different contact point, by concentration or be possible to the electric arc of superposition
Disperse, elongate and blow to heat radiating metal grid, it is raised by the tip of heat radiating metal grid, electric arc is carried out to be divided into short arc,
So that arc temperature is reduced and extinguished rapidly；Heat radiating metal grid relatively increases the thickness of warehouse wherein both sides, makes storehouse
Body turns into non-and waits wall thickness, is effectively reduced the burning of electric arc continuous high temperature and produces loss, adhesion and arc extinguishing bulkhead calcination to contact
Etc. harmful effect, so as to improve the safety in utilization and service life of contactor.
It is described above, only it is preferred embodiment of the present utility model, not makees any formal to the utility model
Limitation；Any those skilled in the art, it is all available in the case where not departing from technical solutions of the utility model ambit
The methods and techniques content of the disclosure above makes many possible variations and modification to technical solutions of the utility model, or is revised as
The equivalent embodiment of equivalent variations.Therefore, every content without departing from technical solutions of the utility model, according to of the present utility model
Technical spirit still falls within this practicality to any simple modification made for any of the above embodiments, equivalent substitution, equivalence changes and modification
In the range of the protection of new technique scheme.
Claims (2)
1. a kind of non-wait in wall thickness arc extinguishing storehouse, including warehouse, warehouse of D.C. contactor is provided with movable contact and two stationary contacts, it is special
Levy and be, the warehouse inwall is respectively equipped with two pieces of permanent magnets and two heat radiating metal grid, two pieces of permanent magnets are located at movable contact
Both sides are simultaneously identical with movable contact direction, and the relative two sides opposite polarity of two pieces of permanent magnets；Two heat radiating metal grid with two pieces
Permanent magnet is perpendicular, is respectively arranged on two other inwall of warehouse.
2. a kind of D.C. contactor according to claim 1 is non-to wait wall thickness arc extinguishing storehouse, it is characterised in that the heat radiating metal
Grid is curved, and the inner side cambered surface of heat radiating metal grid is raised provided with one group of tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720337167.6U CN206564205U (en) | 2017-04-01 | 2017-04-01 | A kind of D.C. contactor is non-to wait wall thickness arc extinguishing storehouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720337167.6U CN206564205U (en) | 2017-04-01 | 2017-04-01 | A kind of D.C. contactor is non-to wait wall thickness arc extinguishing storehouse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206564205U true CN206564205U (en) | 2017-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720337167.6U Active CN206564205U (en) | 2017-04-01 | 2017-04-01 | A kind of D.C. contactor is non-to wait wall thickness arc extinguishing storehouse |
Country Status (1)
| Country | Link |
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| CN (1) | CN206564205U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114613628A (en) * | 2022-03-18 | 2022-06-10 | 深圳市友利通新能源科技有限公司 | Direct current contactor |
| CN114628176A (en) * | 2022-03-18 | 2022-06-14 | 深圳市友利通新能源科技有限公司 | High-pressure direct current contactor arc extinguishing system |
-
2017
- 2017-04-01 CN CN201720337167.6U patent/CN206564205U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114613628A (en) * | 2022-03-18 | 2022-06-10 | 深圳市友利通新能源科技有限公司 | Direct current contactor |
| CN114628176A (en) * | 2022-03-18 | 2022-06-14 | 深圳市友利通新能源科技有限公司 | High-pressure direct current contactor arc extinguishing system |
| CN114613628B (en) * | 2022-03-18 | 2023-11-24 | 深圳市友利通新能源科技有限公司 | DC contactor |
| CN114628176B (en) * | 2022-03-18 | 2023-12-08 | 深圳市友利通新能源科技有限公司 | Arc extinguishing system of high-pressure direct-current contactor |
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