CN206711825U - A kind of longitudinal field contact for vacuum circuit breaker - Google Patents
A kind of longitudinal field contact for vacuum circuit breaker Download PDFInfo
- Publication number
- CN206711825U CN206711825U CN201720446686.6U CN201720446686U CN206711825U CN 206711825 U CN206711825 U CN 206711825U CN 201720446686 U CN201720446686 U CN 201720446686U CN 206711825 U CN206711825 U CN 206711825U
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- China
- Prior art keywords
- contact
- coil
- static
- static contact
- moving
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- 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.)
- Expired - Fee Related
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a kind of longitudinal field contact for vacuum circuit breaker, including static contact and moving contact, static contact is provided with static conductive rod, moving contact is provided with moving conductive rod, static contact is provided with the first coil being serially connected and the second coil, first coil and the second coil are respectively arranged on the connecting lever being connected with static conductive rod, static contact piece is additionally provided with the termination of static contact, first coil and the link position of static contact piece are additionally provided with bulge-structure, moving contact is provided with moving contact piece, static contact piece and moving contact piece are cylindrical structure, the central point of static contact piece and the central point of moving contact piece are located on same axis.The utility model simplifies the structure of moving contact, and improve breaker cut-offs speed, increases the Breaking capacity of breaker, meanwhile, caused field homogeneity in breaker is in turn ensure that, and magnetic field intensity meets the requirement of breaker.
Description
Technical field
Technical field of electric equipment is the utility model is related to, a kind of particularly longitudinal magnetic field for vacuum circuit breaker is touched
Head.
Background technology
The longitudinal field contact structure of conventional symmetrical formula, it respectively has a longitudinal coil on moving contact and static contact,
The coil is applied not only to produce the task of the part carrying main circuit operating current in required longitudinal magnetic field loop, in order to ensure
The contact temperature rise of contact of breaker closure ON operation electric current, which is no more than its upper limit (UL), allows temperature rise, and coil must have enough
Big conductive cross-sectional area, must additionally have certain mechanical strength, impact during ensureing that contact bears closing course.This
The increase of the quality and volume of moving contact is resulted in, this is unfavorable for the raising that moving contact cut-offs speed.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of longitudinal flux for vacuum circuit breaker
Field contact, the application simplify the structure of moving contact, and improve breaker cut-offs speed, increases the Breaking capacity of breaker,
Meanwhile caused field homogeneity in breaker is in turn ensure that, and magnetic field intensity meets the requirement of breaker.
The purpose of this utility model is achieved through the following technical solutions：
A kind of longitudinal field contact for vacuum circuit breaker, including static contact and moving contact, the static contact are provided with
Static conductive rod, the moving contact are provided with moving conductive rod, and the static contact is provided with the first coil being serially connected and the second line
Circle, the first coil and second coil are respectively arranged on the connecting lever being connected with the static conductive rod, the static contact
Static contact piece is additionally provided with termination, the first coil and the link position of the static contact piece are additionally provided with bulge-structure, described
Moving contact is provided with moving contact piece, and the static contact piece and the moving contact piece are cylindrical structure, in the static contact piece
The central point of heart point and the moving contact piece is located on same axis.
Further, the outer wall of the static contact piece is provided with the skewed slot that can produce magnetic field, and the front of the static contact piece is also
Provided with the groove for reducing vortex, the groove has less remnant field after ensureing current over-zero.
Further, the first support member and the second support member are further respectively had below the first coil and the second coil,
First support member and the second support member are used to support first coil and the second coil, the first support member and the second support member difference
It is fixed on static conductive rod.
Further, the number of recesses for being used to reduce vortex on the static contact piece is 4.
The beneficial effects of the utility model are：
The utility model is provided with the first coil and the second coil of two series connection on static contact so that contact of breaker closes
When closing conducting, the heating of contact is no more than the temperature rise that upper limit (UL) allows, and does not set any coil on moving contact so that moving contact
Quality reduces, and improve moving contact cut-offs speed, increases the Breaking capacity of breaker.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model static contact；
Fig. 3 is the structural representation of the utility model bulge-structure；
In figure, 10- static conductive rods, the coils of 11- second, 12- first coils, 13- static contacts, 14- moving contacts, 15- is dynamic to be led
Electric pole, 16- skewed slots, 17- grooves, 18- static contact pieces, 19- bulge-structures.
Embodiment
The technical solution of the utility model, but the scope of protection of the utility model are described in further detail below in conjunction with the accompanying drawings
It is not limited to as described below.
A kind of longitudinal field contact for vacuum circuit breaker, refer to shown in Fig. 1, including static contact 13 and moving contact
14, the static contact 13 is provided with static conductive rod 10, and the moving contact 14 is provided with moving conductive rod 15, set on the static contact 13
There is a coil 11 of first coil 12 and second being serially connected, the first coil 12 and second coil 11 is respectively arranged on and institute
State on the connected connecting lever of static conductive rod 10, be additionally provided with static contact piece 18 on the termination of the static contact 13, refer to shown in Fig. 3,
The link position of the first coil 12 and the static contact piece 18 is additionally provided with bulge-structure 19, and the moving contact 14 is provided with dynamic
Contact blade, the static contact piece 18 and the moving contact piece are cylindrical structure, the central point of the static contact piece 18 and described
The central point of moving contact piece is located on same axis.
Further, refer to shown in Fig. 2, the outer wall of the static contact piece 18 is provided with the skewed slot 16 that can produce magnetic field, institute
The front for stating static contact piece 18 is additionally provided with for reducing the groove 17 being vortexed, and the groove 17 has less remain after ensureing current over-zero
Residual magnetism field.
Further, the lower section of 12 and second coil of first coil 11 further respectively has the first support member and the second support
Part, first support member and the second support member are used to support the coil 11 of first coil 12 and second, the first support member and second
Support member is individually fixed on static conductive rod 10.
Further, the quantity of groove 17 for being used to reduce vortex on the static contact piece 18 is 4.
Specific embodiment of the present utility model is：
Principle of the present utility model is the structure of simplified moving contact, and that improves breaker cut-offs speed, increases breaker
Breaking capacity.Its specific implementation is：Static contact 13 has two layers of coil, and is connected in series, and moving contact
14 sides do not have any coil, and because static contact 13 is changeless, therefore, the increase of the amount of static contact 13 does not interfere with contact
Speed is cut-off, and the side of moving contact 14 does not have any coil, it therefore reduces the quality of the side of moving contact 14, so that moving contact
14 quickly can disconnect and close.Therefore, the longitudinal magnetic field of breaker is only produced by the coil of the side of static contact 13, wherein, it is quiet
Contact blade 18 is provided with four grooves 17, and four grooves 17, which are used to reduce, to be vortexed, less surplus to ensure to have after current over-zero
Residual magnetism field.The current path of whole breaker is that electric current flows to the second coil 11 and First Line by static conductive rod 10 and connecting lever
Circle 12, then enter static contact piece 18 by bulge-structure 19, then flow to moving contact 14 and moving conductive rod 15 by electric arc.This practicality
It is new so that during contact of breaker closure conducting, the heating of contact is no more than the temperature rise that upper limit (UL) allows, on moving contact 14 not
If any coil so that the quality of moving contact 14 reduces, and improve moving contact cut-offs speed, and increase breaker cut-offs appearance
Amount.
Embodiment described above only expresses specific embodiment of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.
Claims (4)
1. a kind of longitudinal field contact for vacuum circuit breaker, including static contact and moving contact, the static contact is provided with quiet
Conducting rod, the moving contact are provided with moving conductive rod, it is characterised in that the static contact is provided with the first coil being serially connected
With the second coil, the first coil and second coil are respectively arranged on the connecting lever being connected with the static conductive rod, described
Static contact piece is additionally provided with the termination of static contact, the first coil and the link position of the static contact piece are additionally provided with raised knot
Structure, the moving contact are provided with moving contact piece, and the static contact piece and the moving contact piece are cylindrical structure, the static contact
The central point of the central point of piece and the moving contact piece is located on same axis.
A kind of 2. longitudinal field contact for vacuum circuit breaker according to claim 1, it is characterised in that the static contact
The outer wall of piece is provided with the skewed slot that can produce magnetic field, and the front of the static contact piece is additionally provided with the groove for reducing vortex.
A kind of 3. longitudinal field contact for vacuum circuit breaker according to claim 1, it is characterised in that the First Line
The first support member and the second support member are further respectively had below circle and the second coil.
A kind of 4. longitudinal field contact for vacuum circuit breaker according to claim 2, it is characterised in that the static contact
The number of recesses for being used to reduce vortex on piece is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720446686.6U CN206711825U (en) | 2017-04-26 | 2017-04-26 | A kind of longitudinal field contact for vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720446686.6U CN206711825U (en) | 2017-04-26 | 2017-04-26 | A kind of longitudinal field contact for vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206711825U true CN206711825U (en) | 2017-12-05 |
Family
ID=60456753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720446686.6U Expired - Fee Related CN206711825U (en) | 2017-04-26 | 2017-04-26 | A kind of longitudinal field contact for vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206711825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192777A (en) * | 2020-01-21 | 2020-05-22 | 上海电机学院 | Anti-arc contact |
-
2017
- 2017-04-26 CN CN201720446686.6U patent/CN206711825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192777A (en) * | 2020-01-21 | 2020-05-22 | 上海电机学院 | Anti-arc contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20210426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |