CN206541769U - A kind of contacts for vacuum-break switches - Google Patents
A kind of contacts for vacuum-break switches Download PDFInfo
- Publication number
- CN206541769U CN206541769U CN201720229419.3U CN201720229419U CN206541769U CN 206541769 U CN206541769 U CN 206541769U CN 201720229419 U CN201720229419 U CN 201720229419U CN 206541769 U CN206541769 U CN 206541769U
- Authority
- CN
- China
- Prior art keywords
- contact
- static contact
- multiple spot
- floating static
- vacuum
- 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.)
- Expired - Fee Related
Links
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a kind of contacts for vacuum-break switches, the bottom of described accepting hole is vertically inserted with floating static contact, the inwall of the accepting hole is further opened with multiple spot fingertip part, the floating static contact is connected by multiple spot fingertip part with contact arm electrical contact, the surface of the floating static contact is further opened with the guiding gutter being obliquely installed, the outer surface of the floating static contact is further opened with protrusion, hemispheric contact connecting portion, and the position of the contact connecting portion is adapted with the position of multiple spot fingertip part.The utility model contact realizes reliable connection by multiple spot fingertip part, so that loop resistance is small, be suitable for the requirement of high-grade electric current, it is used in combination using the contact connecting portion and multiple spot fingertip part of hemispherical projections, realize the small resistance long-life, the guide trough structure of use enables the metallic vapour that dynamic/static contact is formed when separating along guiding gutter longitudinal diffusion, initial velocity is considerably improved, the phenomenon of the serious ablation of contact is improved.
Description
Technical field
The utility model is related to electrical equipment technical field, more particularly to a kind of contacts for vacuum-break switches.
Background technology
" vacuum circuit breaker " gains the name because the dielectric of contact gap after its arc-extinguishing medium and arc extinguishing is all high vacuum；Its
Have the advantages that small volume, it is lightweight, suitable for frequent operation, arc extinguishing without maintenance, using more popularizing in power distribution network.
Vacuum circuit breaker is the indoor distribution in 3~10kV, 50Hz three-phase alternating current systems, is available for industrial and mining enterprises, power plant, power transformation
It is used in standing as the protection and control of electric equipment, is particularly suitable for use in requiring non-oil ultra high vacuum system, few maintenance and the use of frequent operation
Place, breaker is configurable in middle-placed switch cabinet, double-layer cabinet, fixed cabinet as control and protection high voltage electric equipment and used.Vacuum is broken
The applicable current class of the structure of contact terminal of road device is small, and service behaviour is not sufficiently stable, and easily the phenomenon of high temperature ablation occurs, it is impossible to full
The need for sufficient use.
Utility model content
The purpose of this utility model is and a kind of vacuum circuit breaker proposed in order to solve shortcoming present in prior art
Contact.
To achieve these goals, the utility model employs following technical scheme：
Vertically offered in the middle part of a kind of contacts for vacuum-break switches, including contact arm and floating static contact, the inner chamber of the contact arm
Accepting hole, the bottom of described accepting hole is vertically inserted with floating static contact, and the inwall of the accepting hole is further opened with multiple spot
Fingertip part, the floating static contact is connected by multiple spot fingertip part with contact arm electrical contact, and the surface of the floating static contact is also opened
Provided with the guiding gutter being obliquely installed, the outer surface of the floating static contact is further opened with protrusion, hemispheric contact connecting portion,
The position of the contact connecting portion is adapted with the position of multiple spot fingertip part.
Preferably, the head of the floating static contact is hemispherical, and is polished smooth.
Preferably, the bottom of the floating static contact is connected with fixed installation part, and the fixed installation part is by soft pawl
The PVC material of shape is made.
Preferably, the quantity of the fixed installation part is no less than three, and circumferential centered on the axle center of floating static contact
It is uniform to lay.
The utility model contact realizes reliable connection by multiple spot fingertip part so that loop resistance is small, it is high to be suitable for
The requirement of level electric current, is used in combination using the contact connecting portion and multiple spot fingertip part of hemispherical projections, and structure is novel, workability
Can be stable, the small resistance long-life can be realized, with good practicality, when the guide trough structure of use make it that dynamic/static contact is separated
The metallic vapour of formation can considerably improve initial velocity along guiding gutter longitudinal diffusion, improve showing for the serious ablation of contact
As extending its service life, it is easy to application.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of contacts for vacuum-break switches structural representation；
Fig. 2 be the utility model proposes a kind of contacts for vacuum-break switches A at mplifying structure schematic diagram.
In figure：1 contact arm, 2 multiple spot fingertip parts, 3 floating static contacts, 4 fixed installation parts, 5 accepting holes, 6 guiding gutters, 7 contacts
Connecting portion.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.
Reference picture 1-2, a kind of contacts for vacuum-break switches, including contact arm 1, multiple spot fingertip part 2, floating static contact 3, fixed peace
The accepting hole 5 vertically offered in the middle part of piece installing 4, accepting hole 5, guiding gutter 6 and contact connecting portion 7, the inner chamber of contact arm 1, collecting
The bottom in hole 5 is vertically inserted with floating static contact 3, and the bottom of floating static contact 3 is connected with fixed installation part 4, fixed installation part 4
Be made up of the PVC material of soft claw type, the quantity of fixed installation part 4 is no less than three, and using the axle center of floating static contact 3 as
Center is circumferential uniform to lay, and the head of floating static contact 3 is hemispherical, and is polished smooth, and the inwall of accepting hole 5 is further opened with many
Point fingertip part 2, floating static contact 3 is connected by multiple spot fingertip part 2 with the electrical contact of contact arm 1, and the surface of floating static contact 3 is also opened up
There is the guiding gutter 6 being obliquely installed, the outer surface of floating static contact 3 is further opened with protrusion, hemispheric contact connecting portion 7, connect
The position for touching connecting portion 7 is adapted with the position of multiple spot fingertip part 2.
The utility model contact realizes reliable connection by multiple spot fingertip part so that loop resistance is small, it is high to be suitable for
The requirement of level electric current, is used in combination using the contact connecting portion and multiple spot fingertip part of hemispherical projections, and structure is novel, workability
Can be stable, the small resistance long-life can be realized, with good practicality, when the guide trough structure of use make it that dynamic/static contact is separated
The metallic vapour of formation can considerably improve initial velocity along guiding gutter longitudinal diffusion, improve showing for the serious ablation of contact
As extending its service life, it is easy to application.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (4)
1. a kind of contacts for vacuum-break switches, including contact arm（1）With floating static contact（3）, it is characterised in that：The contact arm（1）'s
The accepting hole vertically offered in the middle part of inner chamber（5）, described accepting hole（5）Bottom be vertically inserted with floating static contact（3）, institute
State accepting hole（5）Inwall be further opened with multiple spot fingertip part（2）, the floating static contact（3）Pass through multiple spot fingertip part（2）With touching
Arm（1）Electrical contact connection, the floating static contact（3）Surface be further opened with the guiding gutter being obliquely installed（6）, it is described float it is quiet
Contact（3）Outer surface be further opened with protrusion, hemispheric contact connecting portion（7）, the contact connecting portion（7）Position with
Multiple spot fingertip part（2）Position be adapted.
2. a kind of contacts for vacuum-break switches according to claim 1, it is characterised in that the floating static contact（3）Head
Portion is hemispherical, and is polished smooth.
3. a kind of contacts for vacuum-break switches according to claim 1, it is characterised in that the floating static contact（3）Bottom
Portion is connected with fixed installation part（4）, the fixed installation part（4）It is made up of the PVC material of soft claw type.
4. a kind of contacts for vacuum-break switches according to claim 3, it is characterised in that the fixed installation part（4）Number
Amount is no less than three, and with floating static contact（3）Axle center centered on circumferential uniform lay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720229419.3U CN206541769U (en) | 2017-03-10 | 2017-03-10 | A kind of contacts for vacuum-break switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720229419.3U CN206541769U (en) | 2017-03-10 | 2017-03-10 | A kind of contacts for vacuum-break switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206541769U true CN206541769U (en) | 2017-10-03 |
Family
ID=59942237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720229419.3U Expired - Fee Related CN206541769U (en) | 2017-03-10 | 2017-03-10 | A kind of contacts for vacuum-break switches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206541769U (en) |
-
2017
- 2017-03-10 CN CN201720229419.3U patent/CN206541769U/en not_active Expired - Fee Related
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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: 20171003 Termination date: 20180310 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |