CN209591931U - A kind of contact assembly and the towing vehicle DC. current electromagnetic contactor using it - Google Patents
A kind of contact assembly and the towing vehicle DC. current electromagnetic contactor using it Download PDFInfo
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- CN209591931U CN209591931U CN201920587351.5U CN201920587351U CN209591931U CN 209591931 U CN209591931 U CN 209591931U CN 201920587351 U CN201920587351 U CN 201920587351U CN 209591931 U CN209591931 U CN 209591931U
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- contact
- movable contact
- arc
- shell
- towing vehicle
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Abstract
The utility model discloses a kind of contact assembly and the towing vehicle DC. current electromagnetic contactor using it, it include: moving contact and static contact, the moving contact and static contact face, further includes: movable contact block, one end of the movable contact block are fixedly connected with the moving contact；The middle part of movable contact rod, one end of the movable contact rod and the movable contact block is rotatablely connected；Compression spring, the compression spring, which supports, to be set between the movable contact rod and the other end of the movable contact block.The utility model ensure that moving contact lower part and static contact lower part not by arc damage, ensure that the good contact of contact after combined floodgate, improve the service life of contact, and ensure quickly and effectively arc extinguishing.
Description
Technical field
The utility model relates to the technical field of line contactor more particularly to a kind of contact assembly and use its traction
Vehicle DC. current electromagnetic contactor.
Background technique
Static contact and moving contact in existing electromagnetic contactor is in the state of contact, the lower part of static contact and moving contact
Lower part will receive the damage of electric arc, reduce the service life of static contact and moving contact, and existing electromagnetic contactor exists
In the case where the electric current very little (being lower than 50A) of main circuit, then electric arc is difficult to be detached from the top of moving contact and the top of static contact,
To cannot be introduced into arc-extinguish chamber, arc extinguishing is caused to fail.
Summary of the invention
For the above problem existing for existing electromagnetic contactor, it is now intended to provide a kind of good contact for guaranteeing contact,
Improve the service life of contact, it is ensured that the quickly and effectively contact assembly of arc extinguishing and the towing vehicle direct solenoid using it
Contactor.
Specific technical solution is as follows:
A kind of contact assembly, comprising: moving contact and static contact, the moving contact and static contact face, further includes:
Movable contact block, one end of the movable contact block are fixedly connected with the moving contact；
The middle part of movable contact rod, one end of the movable contact rod and the movable contact block is rotatablely connected；
Compression spring, the compression spring, which supports, to be set between the movable contact rod and the other end of the movable contact block.
Above-mentioned contact assembly, wherein the movable contact rod is equipped with fixture block, and the fixture block is equipped with the first groove, institute
The other end for stating movable contact block is equipped with the second groove, and the both ends of the compression spring are supported respectively set on first groove, described
Between second groove.
Above-mentioned contact assembly, wherein further include: moving contact cover, the moving contact cover cover on the movable contact block.
Above-mentioned contact assembly, wherein pass through straight pin in the middle part of one end of the movable contact rod and the movable contact block
Rotation connection.
A kind of towing vehicle DC. current electromagnetic contactor, wherein including contact assembly described in above-mentioned any one.
Above-mentioned towing vehicle DC. current electromagnetic contactor, wherein further include:
Shell, the movable contact rod are set in the shell, the lower end of the other end of the movable contact rod and the shell
Rotation connection；
The upper end of the side of the shell, the static contact and the upper mother are protruded into upper busbar, one end of the upper busbar
One end of row connects；
The lower end of the side of the shell is protruded into lower busbar, one end of the lower busbar；
Electromagnetic assembly, the electromagnetic assembly are set to the other side of the shell；
Drive rod, the drive rod are movably arranged in the electromagnetic assembly, and the shell is protruded into one end of the drive rod
It is interior, and be rotatablely connected with the middle part of the movable contact rod；
Spring is compressed, for the spring that compresses in the shell, the spring that compresses supports one set on the drive rod
Between end and the side of the shell；
Flexibility is flexible coupling, and one end that the flexibility is flexible coupling is connect with one end of the lower busbar, and the flexibility is flexible coupling
The other end connect with the movable contact block.
Above-mentioned towing vehicle DC. current electromagnetic contactor, wherein further include:
One arc-extinguish chamber, the arc-extinguish chamber are set to the upper end of the shell, and the arc-extinguish chamber is located at the static contact and described
The surface of moving contact；
Two blowout coil components, the blowout coil component is respectively arranged on the two sides in the outside of the arc-extinguish chamber, described to blow
Camber line coil assembly is located at the lower end of the arc-extinguish chamber；
One grid component, the grid component are set to the inside of the arc-extinguish chamber, and the grid component is located at the arc extinguishing
The upper end of cover, the two blowout coil components pass through arc leading angle respectively and connect with the both ends of the grid component.
Above-mentioned towing vehicle DC. current electromagnetic contactor, wherein the grid component includes several ionization grid, several
The ionization grid is set to the one end of the arc-extinguish chamber far from the shell, and several ionization grid are arranged in parallel, if
It does the ionization grid to face, the ionization grid positioned at the two sides of arc-extinguish chamber passes through respectively described in the arc leading angle and two
The connection of blowout coil component.
Above-mentioned towing vehicle DC. current electromagnetic contactor, wherein the upper end of several ionization grid is respectively at together
In one first plane, the lower end of several ionization grid, which is respectively at, to be same as in the second plane, the two adjacent ionization grid
Equally it is arranged.
Above-mentioned towing vehicle DC. current electromagnetic contactor, wherein the electromagnetic assembly includes electromagnet and dynamic iron core, institute
State the other side that electromagnet is set to the shell, the dynamic iron core is movably arranged in the electromagnet, the drive rod it is another
End is fixedly connected with the dynamic iron core.
The good effect that above-mentioned technical proposal has compared with prior art is:
(1) work of the contact assembly of the utility model is supported to be set to compression spring and be moved according to the principle being in rolling contact
Between contact stem and movable contact block, there is rolling action when static contact and moving contact are closed, in entire moving contact along static contact
During rolling, lower part and static contact of the upper contact reconvert on the top and static contact of realizing moving contact at moving contact
Lower contacts have contact surface and remove oxide layer effect, and being in rolling contact keeps the lower part of contact conductive, the top starting the arc touching of contact
Head effect, the lower part of the lower part and static contact that ensure that moving contact ensure that well connecing for contact not by arc damage after combined floodgate
Touching, improves the service life of contact.
(2) blowout coil component is arranged in the utility model, by magnetic field force caused by blowout coil component, electric arc is fast
Speed is detached from the top of moving contact and the top of static contact, hence into arc-extinguish chamber, it is ensured that quickly and effectively arc extinguishing.
Detailed description of the invention
Fig. 1 is a kind of contact assembly of the utility model and using sets of contacts in its towing vehicle DC. current electromagnetic contactor
The structural schematic diagram of part；
Fig. 2 is a kind of contact assembly of the utility model and using sets of contacts in its towing vehicle DC. current electromagnetic contactor
The decomposition texture schematic diagram of part；
Fig. 3 is a kind of contact assembly of the utility model and uses its towing vehicle DC. current electromagnetic contactor in separating brake shape
Overall structure diagram under state；
Fig. 4 is a kind of contact assembly of the utility model and uses A in Fig. 3 of its towing vehicle DC. current electromagnetic contactor
The enlarged drawing at place；
Fig. 5 is a kind of contact assembly of the utility model and uses its towing vehicle DC. current electromagnetic contactor in pre- separating brake
With the overall structure diagram under pre- "on" position；
Fig. 6 is a kind of contact assembly of the utility model and uses B in Fig. 5 of its towing vehicle DC. current electromagnetic contactor
The enlarged drawing at place；
Fig. 7 is a kind of contact assembly of the utility model and uses its towing vehicle DC. current electromagnetic contactor in combined floodgate shape
Overall structure diagram under state；
Fig. 8 is a kind of contact assembly of the utility model and uses C in Fig. 7 of its towing vehicle DC. current electromagnetic contactor
The enlarged drawing at place；
In attached drawing: 1, static contact；2, moving contact；3, movable contact block；4, movable contact rod；5, compression spring；6, fixture block；7,
One groove；8, the second groove；9, moving contact cover；10, straight pin；11, shell；12, upper busbar；13, lower busbar；14, drive rod；
15, flexibility is flexible coupling；16, arc-extinguish chamber；17, blowout coil component；18, grid component；19, arc leading angle；20, electromagnet；21, it moves
Iron core；22, electric arc.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as the utility model
It limits.
Fig. 1 is a kind of contact assembly of the utility model and using sets of contacts in its towing vehicle DC. current electromagnetic contactor
The structural schematic diagram of part, Fig. 2 are a kind of contact assembly of the utility model and the towing vehicle DC. current electromagnetic contactor using it
The decomposition texture schematic diagram of middle contact assembly shows a kind of contact assembly of preferred embodiment as depicted in figs. 1 and 2, packet
Include: moving contact 2 and static contact 1, moving contact 2 and static contact 1 face, further includes: movable contact block 3, movable contact rod 4 and pressure bullet
One end of spring 5, movable contact block 3 is fixedly connected with moving contact 2, and one end of movable contact rod 4 and the middle part of movable contact block 3 rotate and connect
It connects, compression spring 5, which supports, to be set between movable contact rod 4 and the other end of movable contact block 3.
Further, as a kind of preferred embodiment, movable contact rod 4 is equipped with fixture block 6, and fixture block 6 is equipped with the first groove
7, the other end of movable contact block 3 is equipped with the second groove 8, and the both ends of compression spring 5 are supported respectively set on the first groove 7, the second groove 8
Between.
Further, as a kind of preferred embodiment, contact assembly further include: moving contact cover 9, moving contact cover 9 cover at
On movable contact block 3.
Further, pass through cylinder as a kind of preferred embodiment, one end of movable contact rod 4 and the middle part of movable contact block 3
Pin 10 is rotatablely connected.
Fig. 3 is a kind of contact assembly of the utility model and uses its towing vehicle DC. current electromagnetic contactor in separating brake shape
Overall structure diagram under state, Fig. 4 are a kind of contact assembly of the utility model and the towing vehicle direct solenoid using it
Enlarged drawing in Fig. 3 of contactor at A, Fig. 5 are a kind of contact assembly of the utility model and the towing vehicle direct current using it
Overall structure diagram of the electromagnetic contactor under pre- separating brake and pre- "on" position, Fig. 6 are a kind of contact assembly of the utility model
And using the enlarged drawing at B in Fig. 5 of its towing vehicle DC. current electromagnetic contactor, Fig. 7 is a kind of contact of the utility model
Component and overall structure diagram using its towing vehicle DC. current electromagnetic contactor under "on" position, Fig. 8 is this reality
With a kind of novel contact assembly and use the enlarged drawing at C in Fig. 7 of its towing vehicle DC. current electromagnetic contactor, such as Fig. 3
To a kind of towing vehicle DC. current electromagnetic contactor of preferred embodiment shown in Fig. 8, is shown, including above-mentioned contact assembly.
Further, as a kind of preferred embodiment, towing vehicle DC. current electromagnetic contactor further include: shell 11, on
Busbar 12 and lower busbar 13, movable contact rod 4 are set in shell 11, and the other end of movable contact rod 4 and the lower end of shell 11 rotate and connect
It connects, the upper end of the side of shell 11 is protruded into one end of upper busbar 12, and static contact 1 is connect with one end of upper busbar 12, lower busbar 13
One end protrude into shell 11 side lower end.
Further, as a kind of preferred embodiment, towing vehicle DC. current electromagnetic contactor further include: electromagnetic assembly,
Electromagnetic assembly is set to the other side of shell 11.
Further, as a kind of preferred embodiment, towing vehicle DC. current electromagnetic contactor further include: drive rod 14,
Drive rod 14 is movably arranged in electromagnetic assembly, and one end of drive rod 14 is protruded into shell 11, and is rotated with the middle part of movable contact rod 4
Connection.
Further, as a kind of preferred embodiment, towing vehicle DC. current electromagnetic contactor further include: compress spring
(not shown) compresses spring in the shell 11, compress spring support one end and shell 11 set on drive rod side it
Between.
Further, as a kind of preferred embodiment, towing vehicle DC. current electromagnetic contactor further include: flexibility is flexible coupling
15, be flexible coupling 15 one end of flexibility connect with one end of lower busbar 13, flexibility be flexible coupling 15 the other end and the company of movable contact block 3
It connects.
Further, as a kind of preferred embodiment, towing vehicle DC. current electromagnetic contactor further include: an arc-extinguish chamber
16, arc-extinguish chamber 16 is set to the upper end of shell 11, and arc-extinguish chamber 16 is located at the surface of static contact 1 and moving contact 2.
Further, as a kind of preferred embodiment, towing vehicle DC. current electromagnetic contactor further include: two blowout coils
Component 17, blowout coil component 17 are respectively arranged on the two sides in the outside of arc-extinguish chamber 16, and blowout coil component 17 is located at arc-extinguish chamber 16
Lower end.
Further, as a kind of preferred embodiment, towing vehicle DC. current electromagnetic contactor further include: a grid component
18, grid component 18 is set to the inside of arc-extinguish chamber 16, and grid component 18 is located at the upper end of arc-extinguish chamber 16, two blowout coil components 18
It is connect respectively by arc leading angle 19 with the both ends of grid component 18.
The above is only the utility model preferred embodiments, are not intended to limit the embodiments of the present invention and protection
Range.
The utility model also has on the basis of the above is implemented as follows mode:
In the further embodiment of the utility model, continuing with referring to shown in Fig. 1 to Fig. 8, grid component 18 includes several
Grid is ionized, several ionization grid are set to the one end of arc-extinguish chamber 16 far from shell 11, and several ionization grid are arranged in parallel, if
Dry ionization grid faces, and the ionization grid positioned at the two sides of arc-extinguish chamber 16 passes through arc leading angle 19 and two blowout coil components respectively
17 connections.
In the further embodiment of the utility model, the upper end of several ionization grid is respectively in same first plane,
The lower end of several ionization grid, which is respectively at, to be same as in the second plane, and two adjacent ionization grid are equally arranged.
In the further embodiment of the utility model, electromagnetic assembly includes electromagnet 20 and dynamic iron core 21, and electromagnet 20 is set
In the other side of shell 11, dynamic iron core 21 is movably arranged in electromagnet 20, and the other end and dynamic iron core 21 of drive rod 14 are fixed to be connected
It connects.Preferably, the driving mechanism of the utility model is electromagnetic drive, but is not limited only to electromagnetic drive, can be pneumatic actuation.
Preferably, the material of shell 11 is synthetic resin material, is not only able to satisfy requirement on electric performance, but also be able to satisfy best ecology
It is required that the material is fire-retardant, nontoxic, non-environmental-pollution.
The making process of the utility model: when electromagnet 20 is powered, dynamic iron core 21 is pushed to act, to drive drive rod
14 linkages drive movable contact rod 4 and the activity of movable contact block 3 so that moving contact 2 is mobile to static contact 1, the top of moving contact 2 with
After the upper contact of static contact 1, pre- conjunction state is realized, moving contact 2 continues to move to, until the lower part of moving contact 2 and static contact 1
Lower contacts, the top of moving contact 2 and the top of static contact 1 separate, and complete to close a floodgate.
The separating brake process of the utility model: when 20 power loss of electromagnet, dynamic iron core 21 discharges, and the subsequent linkage of drive rod 14 is released
Put, movable contact rod 4 and movable contact block 3 driven to discharge together so that moving contact 2 is removed to static contact 1, the top of moving contact 2 with
After the upper contact of static contact 1, pre- isloation state is realized, moving contact 2 continues to remove, until moving contact 2 and static contact 1 move completely
It opens, completes separating brake.
When contact assembly is converted to pre- conjunction state by opening state, the process for thering is moving contact 2 to roll along static contact 1,
The maximum function of this process is the oxide layer for eliminating contact surface；When the complete "on" position of contact assembly, contact can be appreciated that at this time
Lower contacts it is conductive.
When contact assembly is converted to pre- isloation state by "on" position, the top on the top of moving contact 2 and static contact 1 at this time
Contact forms arcing contact, if if opening again, electric arc 22 is just formed on the top of moving contact 2 and the top of static contact 1, ensure that
The lower part of moving contact 2 and the lower part of static contact 1 are not damaged by electric arc 22, ensure that the good contact of contact after closing a floodgate in this way.
Arc leading angle is moved upwards up to by the diagram direction F due to the effect of electric current after the formation of electric arc 22, at this time due to arc blow-out line
Electric arc 22 is quickly pulled into arc-extinguish chamber 16 by the effect of coil assembly 17, and electric arc 22 is divided into a series of short arcs by grid component 18,
Then electric arc 22 is made to accelerate cooling until extinguishing.
If the electric current very little (being lower than 50A) of main circuit, then illustrate the upward power very little of F, then electric arc 22 is difficult to be detached from
The top of moving contact 2 and stationary contact 1 top, it is by magnetic field force caused by blowout coil component 17, electric arc 22 is de- rapidly
The top on top and static contact 1 from moving contact 2, hence into arc-extinguish chamber 16, arc extinguishing success.
The work of the contact assembly of the utility model is to support compression spring 5 according to the principle being in rolling contact and be set to dynamic touching
Between head rod 4 and movable contact block 3, there is rolling action when static contact 1 and moving contact 2 are closed, in entire moving contact along stationary contact
During first 1 rolls, realize the upper contact reconvert of top and the static contact 1 of moving contact 2 at moving contact 2 lower part with it is quiet
The lower contacts of contact 1 have contact surface and remove oxide layer effect, and being in rolling contact keeps the lower part of contact conductive, contact it is upper
Arcing contact is played in portion, and the lower part of the lower part that ensure that moving contact 2 and static contact 1 is not damaged by electric arc 22, ensure that after combined floodgate
The good contact of contact, improves the service life of contact.
Blowout coil component 17 is arranged in the utility model, by magnetic field force caused by blowout coil component 17, by electric arc
22 are detached from rapidly the top of the top of moving contact 2 and static contact 1, hence into arc-extinguish chamber 16, it is ensured that quickly and effectively arc extinguishing.
The utility model contains line contactor/isolation contactor for the line contactor of locomotive and train, integration module
With pre-charge contactor and other application.
The utility model is used for the contactor of stationary applications, including direct-current propulsion substation and other industrial applications.
The key property of the utility model: rating operating voltage: 900V DC or 1800V DC/AC；Rated current is up to
800A；Normally opened, bidirectional contactor；It is suitble to mechanically operated heavy-load type, at least 2,000,000 times operations；There are many arc-extinguish chamber select with
Meets the needs of installation space and operating characteristics；Control coil (control coil) with low pressure carrying out surge protection；Maintenance requirement is low,
Replace contact with can be convenient；Compact dimensions, it is light-weight；Suitable for the ambient temperature between -40 DEG C to+70 DEG C.
The foregoing is merely the utility model preferred embodiment, be not intended to limit the embodiments of the present invention and
Protection scope should can appreciate that all in the utility model specification and diagram to those skilled in the art
Hold made equivalent replacement and obviously change obtained scheme, the protection model of the utility model should all be included in
In enclosing.
Claims (10)
1. a kind of contact assembly, comprising: moving contact and static contact, the moving contact and static contact face, which is characterized in that also
Include:
Movable contact block, one end of the movable contact block are fixedly connected with the moving contact；
The middle part of movable contact rod, one end of the movable contact rod and the movable contact block is rotatablely connected；
Compression spring, the compression spring, which supports, to be set between the movable contact rod and the other end of the movable contact block.
2. contact assembly according to claim 1, which is characterized in that the movable contact rod is equipped with fixture block, on the fixture block
Equipped with the first groove, the other end of the movable contact block is equipped with the second groove, and the both ends of the compression spring are supported respectively set on institute
It states between the first groove, second groove.
3. contact assembly according to claim 2, which is characterized in that further include: moving contact cover, the moving contact cover cover at
On the movable contact block.
4. contact assembly according to claim 2, which is characterized in that one end of the movable contact rod and the movable contact block
Middle part is rotatablely connected by straight pin.
5. a kind of towing vehicle DC. current electromagnetic contactor, which is characterized in that including such as claims 1 or 2 or 3 or 4 any institutes
The contact assembly stated.
6. towing vehicle DC. current electromagnetic contactor according to claim 5, which is characterized in that further include:
Shell, the movable contact rod are set in the shell, and the lower end of the other end of the movable contact rod and the shell rotates
Connection；
The upper end of the side of the shell, the static contact and the upper busbar are protruded into upper busbar, one end of the upper busbar
One end connection；
The lower end of the side of the shell is protruded into lower busbar, one end of the lower busbar；
Electromagnetic assembly, the electromagnetic assembly are set to the other side of the shell；
Drive rod, the drive rod are movably arranged in the electromagnetic assembly, and one end of the drive rod is protruded into the shell, and
It is rotatablely connected with the middle part of the movable contact rod；
Compress spring, the spring that compresses in the shell, it is described compress spring support one end set on the drive rod with
Between the side of the shell；
Flexibility is flexible coupling, and one end that the flexibility is flexible coupling is connect with one end of the lower busbar, and the flexibility is flexible coupling another
One end is connect with the movable contact block.
7. towing vehicle DC. current electromagnetic contactor according to claim 6, which is characterized in that further include:
One arc-extinguish chamber, the arc-extinguish chamber are set to the upper end of the shell, and the arc-extinguish chamber is located at the static contact and the dynamic touching
The surface of head；
Two blowout coil components, the blowout coil component are respectively arranged on the two sides in the outside of the arc-extinguish chamber, the arc blow-out line
Coil assembly is located at the lower end of the arc-extinguish chamber；
One grid component, the grid component are set to the inside of the arc-extinguish chamber, and the grid component is located at the arc-extinguish chamber
Upper end, the two blowout coil components pass through arc leading angle respectively and connect with the both ends of the grid component.
8. towing vehicle DC. current electromagnetic contactor according to claim 7, which is characterized in that if the grid component includes
Dry ionization grid, several ionization grid are set to the one end of the arc-extinguish chamber far from the shell, several ionization grid
Arranged in parallel, several ionization grid face, and the ionization grid positioned at the two sides of arc-extinguish chamber passes through institute respectively
Arc leading angle is stated to connect with the two blowout coil components.
9. towing vehicle DC. current electromagnetic contactor according to claim 8, which is characterized in that several ionization grid
Upper end is respectively in same first plane, and the lower end of several ionization grid, which is respectively at, to be same as in the second plane, two-phase
The adjacent ionization grid is equally arranged.
10. towing vehicle DC. current electromagnetic contactor according to claim 6, which is characterized in that the electromagnetic assembly includes
Electromagnet and dynamic iron core, the electromagnet are set to the other side of the shell, and the dynamic iron core is movably arranged in the electromagnet,
The other end of the drive rod is fixedly connected with the dynamic iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920587351.5U CN209591931U (en) | 2019-04-26 | 2019-04-26 | A kind of contact assembly and the towing vehicle DC. current electromagnetic contactor using it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920587351.5U CN209591931U (en) | 2019-04-26 | 2019-04-26 | A kind of contact assembly and the towing vehicle DC. current electromagnetic contactor using it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209591931U true CN209591931U (en) | 2019-11-05 |
Family
ID=68346543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920587351.5U Active CN209591931U (en) | 2019-04-26 | 2019-04-26 | A kind of contact assembly and the towing vehicle DC. current electromagnetic contactor using it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209591931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993453A (en) * | 2019-11-29 | 2020-04-10 | 河南平高通用电气有限公司 | Conductive connection device and direct current breaker using same |
-
2019
- 2019-04-26 CN CN201920587351.5U patent/CN209591931U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993453A (en) * | 2019-11-29 | 2020-04-10 | 河南平高通用电气有限公司 | Conductive connection device and direct current breaker using same |
| CN110993453B (en) * | 2019-11-29 | 2021-11-05 | 河南平高通用电气有限公司 | Conductive connection device and direct current breaker using same |
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