CN209401571U - A kind of moving contact component of D.C. contactor - Google Patents
A kind of moving contact component of D.C. contactor Download PDFInfo
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- CN209401571U CN209401571U CN201822245648.1U CN201822245648U CN209401571U CN 209401571 U CN209401571 U CN 209401571U CN 201822245648 U CN201822245648 U CN 201822245648U CN 209401571 U CN209401571 U CN 209401571U
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- moving contact
- movable axis
- insulating part
- contactor
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Abstract
A kind of moving contact component of D.C. contactor, it is characterized by: the moving contact component (4) includes movable axis (402), described movable axis (402) one end passes through moving contact installation via hole (701) on moving contact via hole (203a) and arc insulating apparatus (7) on yoke plate (203) and is located at ceramic member (201), it can cut down in frame piece (202) and the chamber (b) of yoke plate (203) connection installation formation, moving contact piece (401) is located on one end in chamber (b) mounted in the movable axis (402), first insulating part (8) lower surface is bonded the upper surface of the moving contact piece (401), second insulating part (9) upper surface is bonded the lower surface of the moving contact piece (401).The moving contact component of the D.C. contactor improves the dielectric properties and safety of product, avoids interference of the main circuit current to electromagnetic system magnetic field, keep product work more stable by increasing insulation system.
Description
Technical field
The utility model belongs to low-voltage electrical technical field, is specifically exactly to be related to a kind of moving contact group of D.C. contactor
Part.
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 forms, is not dielectrically separated from effectively between existing D.C. contactor major loop and coil, such product with plastic shell etc.
When main circuit is connected, high potential is passed to the electromagnetic systems such as sound iron core and magnetic yoke part through movable axis, easily causes coil
Insulation breakdown occurs；On the other hand, live part is closer apart from shell, reduces the dielectric properties and electrical security of product；
Meanwhile contactor can generate opposite electric arc in the case where positive and negative anodes are reversed between sound contact, the electric arc of two sides may lead to
The contact such as the retaining ring on movable axis top is crossed, the accidents such as explosion on fire is caused to occur.
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
The moving contact component for flowing contactor improves the dielectric properties and safety of product, avoids major loop by increasing insulation system
Interference of the electric current to electromagnetic system magnetic field keeps product work more stable.
Technical solution
In order to achieve the above technical purposes, the moving contact component of a kind of D.C. contactor provided by the utility model, it is special
Sign is: the moving contact component includes movable axis, and described movable axis one end passes through the moving contact via hole and arc on yoke plate
On part moving contact installation via hole be located at ceramic member, can cut down frame piece connect with yoke plate install formation chamber in, moving contact piece
It is located on the indoor one end of chamber mounted in the movable axis, the first insulating part lower surface is bonded the upper surface of the moving contact piece, the
Two insulating part upper surfaces are bonded the lower surface of the moving contact piece.
Further, first insulating part is sleeved on the upper end of the movable axis, and the upper surface of first insulating part is stretched
Insulate separate slot out, and the end of the movable axis is located in the insulation separate slot using the circlip being mounted in thereon to first insulation
Convex wall is stretched out in the lower surface of part limit, first insulating part, and the convex wall is stretched from the moving contact piece and movable axis cooperation place
Enter in the groove being located on second insulating part upper surface at moving contact piece lower surface.
Further, touch spring one end resists the lower surface of second insulating part, and the other end resists on the movable axis
Limited step.
Beneficial effect
D.C. contactor in compared with the existing technology, a kind of moving contact group of D.C. contactor provided by the utility model
Part improves the dielectric properties and safety of product, avoids main circuit current to electromagnetic system magnetic field by increasing insulation system
Interference, make product work it is more stable.
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 moving contact component of D.C. contactor, it includes shell 1, arc-chutes 2, static contact 3, is moved
Contact assembly 4, permanent magnet assembly 5 and external magnetic circuit component 6, the arc-chutes 2 are placed in the shell 1, the static contact 3 and dynamic
Contact assembly 4 can be realized the on-off of D.C. contactor in the indoor engagement of arc extinguishing and separation, and the setting of permanent magnet assembly 5 exists
It can be improved the arc extinction ability of arc-chutes in cavity between the shell 1 and arc-chutes 2, the external magnetic circuit component 6 fills
It is sleeved in the shell 1 on the moving contact component 4 to moving contact component 4 and the engagement of static contact 3 and offer electricity is provided
Magnetic force, 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 201,201 bottom of ceramic member with can cut down 202 upper end of frame piece and connect installation, it is described can
It cuts down the lower end of frame piece 202 and yoke plate 203 connect installation, the arc insulating apparatus 7 is mounted in the ceramic member 201, can cut down 202 and of frame piece
The bottom in chamber b that the connection installation of yoke plate 203 is formed.The arc insulating apparatus 7 is equipped with moving contact and installs via hole 701, described
The hole wall of 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 channel-shaped,
The cell wall upper end of the arc insulating apparatus 7 is equipped with step 1, as shown in Fig. 6, the bottom end of the ceramic member 201 be equipped with it is described
Corresponding two 201a of step of step 1,7 bottom outer surface of arc insulating apparatus are equipped with elastic piece 703, as shown in Fig. 8, institute
Elastic piece 703 is stated equipped with jagged one 703a of mounting hole, the elastic piece 703 using one 703a of mounting hole mounted in it is described every
On the pillar 704a in groove 1 on 7 bottom outer surface of arc part.The elastic piece 703 resists yoke plate 203 and provides pressure
It is bonded the step 1 and two 201a of step, metallic dust can be prevented and the metal pieces into contact such as frame piece 202 can be cut down, is risen
To the effect for 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 and U-shaped magnetic yoke 604, described
Static iron core 601 and dynamic iron core 602 are sleeved on the movable axis 402, and 606 one end of iron core spring connects static iron core 601,
The other end connects dynamic iron core 602, the static iron core 601 and dynamic iron core 602 in sleeve 607, and coil rack 603 is sleeved on institute
It states on sleeve 607, electromagnetic coil 605 is on coil rack 603, and the U-shaped magnetic yoke 604 is on the coil rack 603
Positioned at 203 lower section of yoke plate, setting setting buffering between the bottom lower surface and the bottom cover 10 of the U-shaped magnetic yoke 604
Pad 11.
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 (3)
1. a kind of moving contact component of D.C. contactor, it is characterised in that: the moving contact component (4) includes movable axis (402),
Described movable axis (402) one end passes through the moving contact peace on moving contact via hole (203a) and arc insulating apparatus (7) on yoke plate (203)
Dress via hole (701) is located at ceramic member (201), can cut down frame piece (202) and the chamber (b) of yoke plate (203) connection installation formation is interior,
Moving contact piece (401) is located on one end in chamber (b) mounted in the movable axis (402), the fitting of the first insulating part (8) lower surface
The upper surface of the moving contact piece (401), the second insulating part (9) upper surface are bonded the lower surface of the moving contact piece (401).
2. a kind of moving contact component of D.C. contactor as described in claim 1, it is characterised in that: first insulating part
(8) it is sleeved on the upper end of the movable axis (402), insulation separate slot (801), institute are stretched out in the upper surface of first insulating part (8)
The end for stating movable axis (402) is exhausted to described first using the circlip (403) being mounted in thereon in insulation separate slot (801)
Convex wall (802) are stretched out in edge part (8) limit, the lower surface of first insulating part (8), and the convex wall (802) is from the moving contact
Second insulating part at moving contact piece (401) lower surface is protruded at piece (401) and movable axis (402) cooperation
(9) in the groove on upper surface (901).
3. a kind of moving contact component of D.C. contactor as claimed in claim 2, it is characterised in that: touch spring (12) one end
The lower surface of second insulating part (9) is resisted, the other end resists the limited step (402a) on the movable axis (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822245648.1U CN209401571U (en) | 2018-12-26 | 2018-12-26 | A kind of moving contact component of D.C. contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822245648.1U CN209401571U (en) | 2018-12-26 | 2018-12-26 | A kind of moving contact component of D.C. contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209401571U true CN209401571U (en) | 2019-09-17 |
Family
ID=67897054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822245648.1U Active CN209401571U (en) | 2018-12-26 | 2018-12-26 | A kind of moving contact component of D.C. contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209401571U (en) |
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2018
- 2018-12-26 CN CN201822245648.1U patent/CN209401571U/en active Active
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