CN209388949U - A kind of D.C. contactor - Google Patents
A kind of D.C. contactor Download PDFInfo
- Publication number
- CN209388949U CN209388949U CN201822213597.4U CN201822213597U CN209388949U CN 209388949 U CN209388949 U CN 209388949U CN 201822213597 U CN201822213597 U CN 201822213597U CN 209388949 U CN209388949 U CN 209388949U
- Authority
- CN
- China
- Prior art keywords
- arc
- contactor
- moving contact
- chutes
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of D.C. contactor, it includes shell (1), arc-chutes (2), static contact (3), moving contact component (4), permanent magnet assembly (5) and external magnetic circuit component (6), the static contact (3) and moving contact component (4) can be realized the on-off of D.C. contactor in the indoor engagement of arc extinguishing and separation, it is characterized by: being provided with epoxy resin accommodating chamber (a) between the upper surface and the shell (1) inner cavity top end surface on arc-chutes (2) top, arc-chutes (2) intracavity bottom is provided with arc insulating apparatus (7), the upper and lower surfaces of moving contact piece (401) in the moving contact component (4) are respectively corresponded equipped with the first insulating part (8) and the second insulating part (9).The D.C. contactor is improved by the structure to existing D.C. contactor, can be improved the insulation performance of contactor while the problem for preventing installation from malfunctioning.
Description
Technical field
The utility model belongs to low-voltage electrical technical field, is specifically exactly to be related to a kind of D.C. contactor.
Background technique
D.C. contactor is commonly used on using battery as the vehicle of the energy, and control vehicle launch, speed regulation etc. are multiple
Movement.With the rapid development of electric vehicles, market is higher and higher to the voltage rating demand of D.C. contactor.Since direct current connects
The volume of tentaculum is determined by rated current, and contact space is closed.And influence the connection breaking capacity of D.C. contactor contactor
Main factor be to turn on voltage, the connection voltage of D.C. contactor is higher, is less susceptible to normal ON disjunction.
D.C. contactor is usually by coil and external magnetic circuit, arc-chutes, static contact, moving contact, movable shaft assembly, permanent magnet
It is formed with plastic shell etc., but current D.C. contactor product between major loop and coil due to not insulated effectively
Isolation, after major loop closure, load high pressure can be pivotally connected on the hardware at other positions by movable metallic, be drawn
It plays coil and insulation breakdown occurs, damage coil；Simultaneously although arc-chutes are ceramics or plastic part, but as product is cut-off time
Several increases, and when especially cut-offfing high-voltage large current load, the contact material that arc evaporation goes out can be deposited on ceramic sidewalls, leads
The creepage distance inside arc-chutes is caused to shorten, dielectric strength reduces, and eventually leading to life of product and reliability reduces；Another
Aspect because due to small product size it is small, be easy to cause that existing there are two insulate between static contact and between static contact and permanent magnet
Breakdown.The permanent magnet of last existing D.C. contactor product does not have error-proof structure, is easy setup error in process of production, causes
Product is unable to reach the purpose cut-off.
Utility model content
The purpose of this utility model provides a kind of straight aiming at technological deficiency existing for above-mentioned existing D.C. contactor
Contactor is flowed, is improved by the structure to existing D.C. contactor, can be avoided and above-mentioned insulation performance difference reduction production occur
Product service life and installation are easy to happen the problem of mistake.
Technical solution
In order to achieve the above technical purposes, a kind of D.C. contactor provided by the utility model, it includes shell, arc extinguishing
Room, static contact, moving contact component, permanent magnet assembly and external magnetic circuit component, the arc-chutes are placed in the shell, the stationary contact
Head and moving contact component can be realized the on-off of D.C. contactor in the indoor engagement of arc extinguishing and separation, and the permanent magnet assembly is set
Set the arc extinction ability that can be improved arc-chutes in the cavity between the shell and arc-chutes, the external magnetic circuit component dress
It is sleeved in the shell on the moving contact component to moving contact component and the engagement of static contact and offer electromagnetic force is provided,
It is characterized by: being provided with epoxy resin receiving between the upper surface on the arc-chutes top and the shell inner cavity top end surface
Chamber, the arc-chutes intracavity bottom are provided with arc insulating apparatus, the upper and lower surfaces of the moving contact piece in the moving contact component
It respectively corresponds equipped with the first insulating part and the second insulating part.
Further, static contact mounting hole periphery is located on the shell inner cavity top end surface and is provided with muscle platform, the muscle
Platform is bonded to form epoxy resin accommodating chamber with the dome top surface of the ceramic member in the arc-chutes.
Further, the arc-chutes include ceramic member, and the ceramic member bottom connect installation, institute with that can cut down frame piece upper end
The lower end of frame piece can be cut down by, which stating, connect installation with yoke plate, the arc insulating apparatus mounted in the ceramic member, frame piece can be cut down and yoke plate connects
Connect the indoor bottom of chamber that installation is formed.
Further, the moving contact component includes movable axis, and described movable axis one end passes through the moving contact on yoke plate
Via hole and the moving contact installation via hole on arc insulating apparatus, which be located at ceramic member, can cut down frame piece connect with yoke plate the chamber for installing formation
Interior, moving contact piece is located on the indoor one end of chamber mounted in the movable axis, and the first insulating part lower surface is bonded the moving contact piece
Upper surface, the second insulating part upper surface is bonded the lower surface of the moving contact piece.
Further, the permanent magnet assembly includes permanent magnet and fixed plate, and the permanent magnet is limited by fixed plate 502
For system on the outside of the arc-chutes, the permanent magnet is equipped with fool proof groove, and the shell is equipped with and the fool proof groove pair
The fool proof boss answered.
Further, the bottom of the shell is encapsulated with bottom cover, the bottom cover inner chamber bottom surface and the external magnetic circuit component it
Between setting cushion be capable of providing elastic force and be bonded the muscle platform and the dome top surface of the ceramic member in the arc-chutes.
Further, the arc insulating apparatus is equipped with moving contact and installs via hole, the hole wall surrounding of the moving contact installation via hole
Equipped with arc separating wall.
Further, the arc insulating apparatus is channel-shaped, and the cell wall upper end of the arc insulating apparatus is equipped with step one, the ceramic member
Bottom end is equipped with step two corresponding with the step one, and the arc insulating apparatus bottom outer surface is equipped with elastic piece, and the elastic piece mentions
The step one and step two are bonded for pressure.
Further, the elastic piece is on the pillar in the groove one on the arc insulating apparatus bottom outer surface.
Further, the elastic piece is equipped with mounting hole one, and the pillar is in the mounting hole one, the installation
Kong Yiwei zigzag.
Further, protrusion is provided on the slot bottom inner surface of the arc insulating apparatus.
Further, first insulating part is sleeved on the upper end of the movable axis, the upper surface of first insulating part
Insulation separate slot is stretched out, the end of the movable axis is in the insulation separate slot using exhausted to described first mounted in circlip thereon
Convex wall is stretched out in the limit of edge part, the lower surface of first insulating part, and the convex wall is from the moving contact piece and movable axis cooperation place
It protrudes into the groove two on second insulating part upper surface being located at moving contact piece lower surface.
Further, touch spring one end resists the lower surface of second insulating part, and the other end resists the movable axis
On limited step.
Beneficial effect
D.C. contactor in compared with the existing technology, a kind of D.C. contactor provided by the utility model have following several
The advantages of aspect:
1, increase by the first insulating part and the second insulating part can be realized being dielectrically separated between internal major loop and movable axis；
2, it increases arc insulating apparatus and can be realized and the metal material of arc evaporation out is isolated；
3, epoxy resin accommodating chamber can satisfy reliable encapsulating requirement, realizes and increases between static contact, static contact and week
Enclose the purpose of creepage distance between metalwork；
4, it carries out adding error-proof structure between shell and permanent magnet, avoids permanent magnet anti-loaded, improve the reliability of product.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of D.C. contactor in the embodiment of the present invention；
Attached drawing 2a is contact system mounting structure schematic diagram in the embodiment of the present invention；
Attached drawing 2b is that contact system installs schematic perspective view in the embodiment of the present invention；
Attached drawing 2c is contact system structure schematic diagram in the embodiment of the present invention；
Attached drawing 3 is the structural schematic diagram of the first insulating part in the embodiment of the present invention；
Attached drawing 4 is the structural schematic diagram of the second insulating part in the embodiment of the present invention；
Attached drawing 5 is permanent magnet assembly mounting structure schematic diagram in the embodiment of the present invention；
Attached drawing 6 is ceramic member structural schematic diagram in the embodiment of the present invention；
Attached drawing 7a is interval arc piece structure of embodiment of the present invention schematic diagram one；
Attached drawing 7b is interval arc piece structure of embodiment of the present invention schematic diagram two；
Attached drawing 8 is elastic chip architecture schematic diagram in the embodiment of the present invention；
Attached drawing 9 is shell mechanism schematic diagram in the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described further.
Embodiment
As shown in Fig. 1, a kind of D.C. contactor, it includes shell 1, arc-chutes 2, static contact 3, moving contact component 4, forever
Magnet assembly 5 and external magnetic circuit component 6, the arc-chutes 2 are placed in the shell 1, and the static contact 3 and moving contact component 4 exist
The indoor engagement of arc extinguishing and separation can be realized the on-off of D.C. contactor, and the permanent magnet assembly 5 is arranged in 1 He of shell
It can be improved the arc extinction ability of arc-chutes in cavity between arc-chutes 2, the external magnetic circuit component 6 is mounted in the shell 1
It is inside sleeved on the moving contact component 4 to moving contact component 4 and the engagement of static contact 3 and offer electromagnetic force is provided, in which:
As shown in Fig. 9,101 periphery of static contact mounting hole is located on the 1 inner cavity top end surface of shell and is provided with muscle platform
101a, the muscle platform 101a are bonded to form epoxy resin accommodating chamber with the dome top surface of the ceramic member 201 in the arc-chutes 2
a.It is specifically exactly that the bottom of the shell 1 is encapsulated with bottom cover 10,10 inner chamber bottom surface of bottom cover and the external magnetic circuit component
Setting cushion 11 is capable of providing elastic force and makes on the top of the ceramic member 201 in the muscle platform 101a and the arc-chutes 2 between 6
Surface fitting.The static contact mounting hole 101 from this of static contact 3 is drawn, the insulation such as filling epoxy resin in epoxy resin accommodating chamber a
Colloid, the epoxy resin accommodating chamber a that fit structure is formed at this can prevent colloid when encapsulating from flowing to encapsulating caused by lower part not
The generation of the problems such as enough fine and close, improves the exterior insulation intensity of arc-chutes.
As shown in attached drawing 1 and 2a, it is specifically exactly the present embodiment that 2 intracavity bottom of arc-chutes, which is provided with arc insulating apparatus 7,
In, the arc-chutes 2 include ceramic member 201, and 201 bottom of ceramic member connect installation with that can cut down 202 upper end of frame piece, described
The lower end of frame piece 202 can be cut down and yoke plate 203 connect installation, the arc insulating apparatus 7 is mounted in the ceramic member 201, can cut down frame piece 202
The bottom in the chamber b that installation is formed is connected with yoke plate 203.The arc insulating apparatus 7 is equipped with moving contact and installs via hole 701, institute
The hole wall for stating moving contact installation via hole 701 is surrounded by arc separating wall 701a.As shown in attached drawing 7a and 7b, the arc insulating apparatus 7 is slot
The cell wall upper end of shape, the arc insulating apparatus 7 is equipped with step 1, and as shown in Fig. 6, the bottom end of the ceramic member 201 is equipped with and institute
Corresponding two 201a of step of step 1 is stated, 7 bottom outer surface of arc insulating apparatus is equipped with elastic piece 703, as shown in Fig. 8,
The elastic piece 703 is equipped with jagged one 703a of mounting hole, and the elastic piece 703 is using one 703a of mounting hole mounted in described
On the pillar 704a in groove 1 on 7 bottom outer surface of arc insulating apparatus.The elastic piece 703 resists yoke plate 203 and provides pressure
Power is bonded the step 1 and two 201a of step, can prevent metallic dust and can cut down the metal pieces into contact such as frame piece 202,
Play the role of increasing insulation.Meanwhile protrusion 705 and raised line 706 are provided on the slot bottom inner surface of the arc insulating apparatus 7.Protrusion
705 can prevent metallic dust from entering in the gap between movable axis 402 and static iron core, prevent movable axis 402 from card resistance occurs.Raised line
706 can store the metallic dust fallen, and hinder its movement.
Such as attached drawing 1,2a, shown in 2b and 2c, the moving contact component 4 includes that movable axis 402 described in movable axis 402 is to become
Journal axle, described 402 one end of movable axis pass through the moving contact installation on moving contact via hole 203a and arc insulating apparatus 7 on yoke plate 203
Via hole 701 is located at the ceramic member 201, frame piece 202 can be cut down and chamber b that the connection installation of yoke plate 203 is formed in, moving contact
Piece 401 is located on one end in chamber b mounted in the movable axis 402, and 8 lower surface of the first insulating part is bonded the moving contact piece
401 upper surface, 9 upper surface of the second insulating part are bonded the lower surface of the moving contact piece 401.It is specifically exactly this implementation
In example, first insulating part 8 is sleeved on the upper end of the movable axis 402, as shown in attached drawing 1,3 and 4, first insulating part
Insulation separate slot 801 is stretched out in 8 upper surface, and the end of the movable axis 402, which is located to utilize in the insulation separate slot 801, is mounted in it
On circlip 403 first insulating part 8 is limited, it is anti-that the cell wall of the insulation separate slot 801 close to static contact 3 avoids power supply
The direct contact of electric arc when connecing, and pilot arc is mobile and extinguishes.Convex wall 802, institute are stretched out in the lower surface of first insulating part 8
Convex wall 802 is stated to protrude at 401 lower surface of moving contact piece from the moving contact piece 401 and 402 cooperation place of movable axis
Realize that the first insulating part 8 and the second insulating part 9 generate relative displacement in groove 2 901 on second insulating part, 9 upper surface
Shi Buhui interferes catching phenomenon, at the same realize the insulation between moving contact piece 401 and movable axis 402 and touch spring 12 every
From.When contactor main circuit is connected, high potential will not be passed to the electricity such as static iron core 601, dynamic iron core 602, U-shaped magnetic yoke 604
Magnetic system part enables electromagnetic coil 605 to be effectively isolated with the high potential of main circuit.12 one end of touch spring resists institute
The lower surface of the second insulating part 9 is stated, the other end resists the limited step 402a on the movable axis 402.
As shown in attached drawing 1 and 5, the permanent magnet assembly 5 includes permanent magnet 501 and fixed plate 502, the permanent magnet 501
By the limitation of fixed plate 502 mounted in 2 outside of arc-chutes, the permanent magnet 501 is equipped with fool proof groove 501a, the shell
1 is equipped with fool proof boss 102 corresponding with the fool proof groove 501a.When permanent magnet 501 and fixed plate 502 are according to correct position
When installing in shell 1, fool proof groove 501a be can be inserted in fool proof boss 102, otherwise mounting height can be caused to change,
Eventually leading to bottom cover 10 can not be fitted into shell 1.Cooperation with this configuration can be to avoid the anti-loaded caused accident hair of permanent magnet
It is raw.
As shown in Fig. 1, the external magnetic circuit component 6 includes static iron core 601, dynamic iron core 602, yoke plate 203 and U-shaped magnetic
Yoke 604, the static iron core 601 are connected and fixed with yoke plate 203, and dynamic iron core 602 is sleeved on the movable axis 402, living
Moving axis 402 is pierced by by the centre bore of static iron core 601, and 606 one end of iron core spring connects static iron core 601, and the other end connects dynamic iron
In sleeve 607, coil rack 603 is sleeved on the sleeve 607 for core 602, the static iron core 601 and dynamic iron core 602, electricity
For magnetic coil 605 on coil rack 603, the U-shaped magnetic yoke 604 is located at the yoke plate on the coil rack 603
203 lower sections, setting setting cushion 11 between the bottom lower surface and the bottom cover 10 of the U-shaped magnetic yoke 604.
The course of work of the present embodiment is: when coil is powered, dynamic iron core 602 overcomes iron core spring under electromagnetic force
606 spring force, towards static iron core 601 move, while drive movable axis 402 to move upwards so that moving contact component 4 dynamic touching
Head piece 401 is contacted with static contact 3, continues thereafter with the spring force for overcoming touch spring 12, so that dynamic iron core 602 and static iron core 601
Iron core is bonded to each other, and realizes the reliable conducting of contactor major loop.
When coil blackout, electromagnetic attraction disappears, dynamic iron core 602 iron core spring 606 and touch spring 12 spring force and
It is quickly separated with static iron core 601 under the action of self gravity, and drives moving contact component 4 to move down and realize moving contact piece 401
With the disconnection of static contact 3, the disjunction of contactor major loop is realized.
This specification embodiment structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, it should all still fall in disclosed technology contents and obtain the model that can cover
In enclosing.Meanwhile cited such as "upper", "lower", "left", "right", " centre ", " clockwise ", " counterclockwise " in this specification
Term, be merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or
Adjustment, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Claims (13)
1. a kind of D.C. contactor, it includes shell (1), arc-chutes (2), static contact (3), moving contact component (4), set of permanent magnets
Part (5) and external magnetic circuit component (6), the arc-chutes (2) are placed in the shell (1), the static contact (3) and moving contact component
(4) it can be realized the on-off of D.C. contactor in the indoor engagement of arc extinguishing and separation, the permanent magnet assembly (5) is arranged described
It can be improved the arc extinction ability of arc-chutes, the external magnetic circuit component (6) in cavity between shell (1) and arc-chutes (2)
Be sleeved in the shell (1) on the moving contact component (4) to moving contact component (4) and static contact (3) engagement and
Separation provides electromagnetic force, it is characterised in that: the upper surface on arc-chutes (2) top and the shell (1) inner cavity top end surface
Between be provided with epoxy resin accommodating chamber (a), arc-chutes (2) intracavity bottom is provided with arc insulating apparatus (7), the moving contact group
The upper and lower surfaces of moving contact piece (401) in part (4) are respectively corresponded equipped with the first insulating part (8) and the second insulating part
(9)。
2. a kind of D.C. contactor as described in claim 1, it is characterised in that: shell (1) inner cavity top end surface is upper
It is provided with muscle platform (101a) in static contact mounting hole (101) periphery, the ceramics in the muscle platform (101a) and the arc-chutes (2)
The dome top surface of part (201) is bonded to form epoxy resin accommodating chamber (a).
3. a kind of D.C. contactor as described in claim 1, it is characterised in that: the arc-chutes (2) include ceramic member
(201), ceramic member (201) bottom connect installation, the lower end for cutting down frame piece (202) with that can cut down frame piece (202) upper end
Installation is connect with yoke plate (203), the arc insulating apparatus (7) is mounted in the ceramic member (201), can cut down frame piece (202) and yoke plate
(203) bottom in the chamber (b) that connection installation is formed.
4. a kind of D.C. contactor as described in claim 1, it is characterised in that: the moving contact component (4) includes movable axis
(402), described movable axis (402) one end passes through dynamic on the moving contact via hole (203a) and arc insulating apparatus (7) on yoke plate (203)
Contact installation via hole (701) is located at ceramic member (201), can cut down frame piece (202) and the chamber of yoke plate (203) connection installation formation
(b) in, moving contact piece (401) is located on one end in chamber (b) mounted in the movable axis (402), the first insulating part (8) following table
Face paste closes the upper surface of the moving contact piece (401), and the second insulating part (9) upper surface is bonded under the moving contact piece (401)
Surface.
5. a kind of D.C. contactor as described in claim 1, it is characterised in that: the permanent magnet assembly (5) includes permanent magnet
(501) it is mounted on the outside of the arc-chutes (2) with fixed plate (502), the permanent magnet (501) by fixed plate (502) limitation, institute
Permanent magnet (501) are stated equipped with fool proof groove (501a), the shell (1) is equipped with corresponding with fool proof groove (501a)
Fool proof boss (102).
6. a kind of D.C. contactor as claimed in claim 2, it is characterised in that: the bottom of the shell (1) is with bottom cover (10)
Encapsulation, setting cushion (11), which is capable of providing elastic force, between bottom cover (10) inner chamber bottom surface and the external magnetic circuit component (6) makes
The muscle platform (101a) is bonded with the dome top surface of the ceramic member (201) in the arc-chutes (2).
7. a kind of D.C. contactor as claimed in claim 3, it is characterised in that: the arc insulating apparatus (7) is pacified equipped with moving contact
It fills via hole (701), the hole wall of moving contact installation via hole (701) is surrounded by arc separating wall (701a).
8. a kind of D.C. contactor as claimed in claim 3, it is characterised in that: the arc insulating apparatus (7) is channel-shaped, the arc
The cell wall upper end of part (7) is equipped with step one (702), and the bottom end of the ceramic member (201) is equipped with corresponding to the step one (702)
Step two (201a), arc insulating apparatus (7) bottom outer surface is equipped with elastic piece (703), and the elastic piece (703) provides pressure
It is bonded the step one (702) and step two (201a).
9. a kind of D.C. contactor as claimed in claim 8, it is characterised in that: the elastic piece (703) is mounted in the arc
On the pillar (704a) in groove one (704) on part (7) bottom outer surface.
10. a kind of D.C. contactor as claimed in claim 9, it is characterised in that: the elastic piece (703) is equipped with mounting hole
One (703a), for the pillar (704a) in the mounting hole one (703a), the mounting hole one (703a) is zigzag.
11. a kind of D.C. contactor as claimed in claim 8, it is characterised in that: on the slot bottom inner surface of the arc insulating apparatus (7)
It is provided with raised (705).
12. a kind of D.C. contactor as claimed in claim 4, it is characterised in that: first insulating part (8) is sleeved on described
Insulation separate slot (801), the movable axis (402) are stretched out in the upper surface of the upper end of movable axis (402), first insulating part (8)
End be located in insulation separate slot (801) first insulating part (8) limited using mounted in circlip (403) thereon,
Convex wall (802) are stretched out in the lower surface of first insulating part (8), and the convex wall (802) is from the moving contact piece (401) and activity
It is protruded at axis (402) cooperation recessed on the second insulating part (9) upper surface at moving contact piece (401) lower surface
In slot two (901).
13. a kind of D.C. contactor as claimed in claim 4, it is characterised in that: touch spring (12) one end resists described the
The lower surface of two insulating parts (9), the other end resist the limited step (402a) on the movable axis (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213597.4U CN209388949U (en) | 2018-12-26 | 2018-12-26 | A kind of D.C. contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822213597.4U CN209388949U (en) | 2018-12-26 | 2018-12-26 | A kind of D.C. contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209388949U true CN209388949U (en) | 2019-09-13 |
Family
ID=67854856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822213597.4U Active CN209388949U (en) | 2018-12-26 | 2018-12-26 | A kind of D.C. contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209388949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022021286A1 (en) * | 2020-07-31 | 2022-02-03 | 华为数字能源技术有限公司 | Contact device, electromagnetic switch, on board charger, and new energy vehicle |
-
2018
- 2018-12-26 CN CN201822213597.4U patent/CN209388949U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022021286A1 (en) * | 2020-07-31 | 2022-02-03 | 华为数字能源技术有限公司 | Contact device, electromagnetic switch, on board charger, and new energy vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103155084B (en) | Electromagnetic contactor | |
| CN110783147B (en) | Direct current contactor and car | |
| WO2005004184A1 (en) | Electromagnetic switching device | |
| US8558648B2 (en) | Electromagnetic switching apparatus | |
| CN103140909A (en) | Electromagnetic contactor | |
| CN104704596B (en) | Electromagnetism shutter | |
| EP3846195A1 (en) | Direct current relay | |
| CN106062913A (en) | Electromagnetic contact apparatus | |
| US20230029524A1 (en) | High-voltage dc relay | |
| JP2022509713A (en) | Contact mechanism and switching equipment for switching equipment | |
| CN209388949U (en) | A kind of D.C. contactor | |
| CN111613485A (en) | High voltage direct current contactor | |
| JP2013175437A (en) | Relay | |
| CN105047480A (en) | Magnetic latching relay with asymmetric magnetic circuit | |
| US2946876A (en) | Relay structure | |
| CN209401571U (en) | A kind of moving contact component of D.C. contactor | |
| CN209401570U (en) | A kind of arc structure of D.C. contactor | |
| CN203787357U (en) | DC (direct current) contactor | |
| CN206628422U (en) | Small-sized energy-saving electromagnetic relay | |
| CN100424802C (en) | Electronic magnetic relay | |
| CN220796595U (en) | Electromagnetic relay and power equipment | |
| JP7243535B2 (en) | Contact device and magnetic contactor | |
| CN218004741U (en) | Clapper type electromagnetic relay | |
| CN210578479U (en) | Intermediate solid state relay | |
| CN218333618U (en) | Heavy load electromagnetic relay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |