CN201315266Y - Static contact of grounding switch - Google Patents
Static contact of grounding switch Download PDFInfo
- Publication number
- CN201315266Y CN201315266Y CNU2008202210292U CN200820221029U CN201315266Y CN 201315266 Y CN201315266 Y CN 201315266Y CN U2008202210292 U CNU2008202210292 U CN U2008202210292U CN 200820221029 U CN200820221029 U CN 200820221029U CN 201315266 Y CN201315266 Y CN 201315266Y
- Authority
- CN
- China
- Prior art keywords
- aluminium
- static contact
- copper plate
- contact head
- contact
- 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 - Lifetime
Links
Images
Abstract
The utility model relates to a static contact of a grounding switch, which comprises an aluminium contact head and an aluminium installing seat, wherein, a copper plate axially extending along the aluminium contact head is embedded in the aluminium contact head, one end of the copper plate is positioned in the aluminium installing seat, and the two opposite side surfaces of the copper plate are matched with the circumferential surface of the aluminium contact head. The main body structure of the static contact provided by the scheme adopts aluminum alloy material, and compared with the static contact made of a copper material, the manufacturing cost of the static contact made of the aluminum alloy material is greatly reduced; a copper plate is arranged at the aluminium contact head part of the static contact, the tail end of the copper plate extends to the inside of the aluminium installing seat, and the problem of poor conductivity of the static contact made of pure aluminium alloy is solved; and a casting process hole is formed on the copper plate so that the copper plate can be firmly fixed on the aluminium static contact, and loosening due to the copper and the aluminium with different expansion coefficients can be avoided.
Description
Technical field
The utility model relates to a kind of earthed switch fixed contact.
Background technology
Earthed switch is used for high-voltage circuit system.The earthed switch fixed contact is the key components and parts of earthed switch.Existing fixed contact adopts full casting ledrite monolithic construction, along with constantly riseing of the prices of raw and semifnished materials, it is too high to adopt full steel structure to make the fixed contact cost, adopting the cast aluminium Si-Mg alloy to make fixed contact can reduce cost, but the conductance of aluminium alloy is not as the conductance of copper, have suddenly big electric current by the time because its conductance is not enough, the fixed contact quantity of heat production increases, contact has the danger of burning.
The utility model content
The purpose of this utility model provides a kind of earthed switch fixed contact, makes the danger that the fixed contact of earthed switch fixed contact existence burns in order to solve the use aluminium alloy.
For achieving the above object, the utility model adopts following technical scheme: a kind of earthed switch fixed contact, comprise aluminum contact head and aluminum mount pad, be inlaid with in the described aluminum contact head along the axially extended copper coin of aluminum contact head, one end of copper coin is in the aluminum mount pad, and two the relative sides and the aluminum contact head side face of copper coin match.
Be laid with the casting technique hole on the described copper coin.
The fixed contact agent structure of such scheme adopts aluminum alloy materials, uses the fixed contact of aluminum alloy materials manufacturing to use the fixed contact manufacturing cost of copper product manufacturing that significantly reduction has been arranged.The aluminum contact head of fixed contact is provided with copper coin, and the end of copper coin has extended in the aluminum mount pad, has solved the bad problem of fixed contact conductance of using pure aluminum alloy to make.
Copper coin is provided with the casting technique hole, and aluminium water takes whole casting technique hole fully during casting, makes in the firm fixed contact that is fixed on aluminum of copper coin, prevents to produce owing to copper is different with the coefficient of expansion of aluminium loosening.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a right view of the present utility model;
Fig. 3 is the A-A cutaway view of Fig. 1.
Embodiment
A kind of earthed switch fixed contact shown in Fig. 1,2,3, the main body mechanism of aluminum comprises aluminum contact head 1 and aluminum mount pad 2, be inlaid with in the aluminum contact head 1 along the axially extended copper coin 3 of aluminum contact head, one end of copper coin 3 is in the aluminum mount pad, and two the relative sides and aluminum contact head 1 side face of copper coin 3 match.Copper coin 3 is provided with the casting technique hole, and assurance copper coin 3 is cast latter linked reliability with aluminium body.
Claims (2)
1. earthed switch fixed contact, comprise aluminum contact head and aluminum mount pad, it is characterized in that: be inlaid with in the described aluminum contact head along the axially extended copper coin of aluminum contact head, one end of copper coin is in the aluminum mount pad, and two the relative sides and the aluminum contact head side face of copper coin match.
2. earthed switch fixed contact according to claim 1 is characterized in that: be laid with the casting technique hole on the copper coin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202210292U CN201315266Y (en) | 2008-11-17 | 2008-11-17 | Static contact of grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202210292U CN201315266Y (en) | 2008-11-17 | 2008-11-17 | Static contact of grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201315266Y true CN201315266Y (en) | 2009-09-23 |
Family
ID=41127065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202210292U Expired - Lifetime CN201315266Y (en) | 2008-11-17 | 2008-11-17 | Static contact of grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201315266Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819892A (en) * | 2010-04-21 | 2010-09-01 | 毕新华 | Copper bearing steel all-in-one static contact |
| CN102938345A (en) * | 2012-11-09 | 2013-02-20 | 川开电气股份有限公司 | Three-position isolating-grounding switch |
| CN104505270A (en) * | 2015-01-08 | 2015-04-08 | 德力西电气有限公司 | Fixed contact of disconnector |
-
2008
- 2008-11-17 CN CNU2008202210292U patent/CN201315266Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819892A (en) * | 2010-04-21 | 2010-09-01 | 毕新华 | Copper bearing steel all-in-one static contact |
| CN102938345A (en) * | 2012-11-09 | 2013-02-20 | 川开电气股份有限公司 | Three-position isolating-grounding switch |
| CN104505270A (en) * | 2015-01-08 | 2015-04-08 | 德力西电气有限公司 | Fixed contact of disconnector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201315266Y (en) | Static contact of grounding switch | |
| CN201421891Y (en) | Clip of crimping type copper aluminum device | |
| CN203995754U (en) | A kind of aluminium rail core and steel-aluminium composite conducting rail thereof with surface galling | |
| CN202124666U (en) | Copper-aluminum composite conductive energy-conservation negative plate | |
| CN203026655U (en) | Copper-aluminum parallel groove clamp | |
| CN201655986U (en) | Special large-current and non-overheating conducting wire connecting contact | |
| CN202172044U (en) | A vacuum extinction inlet and outlet terminal connector | |
| CN2781700Y (en) | Infrared electric heating ceramic tile/ceramic plate | |
| CN201340914Y (en) | Copper-aluminum composite wire clamp | |
| CN202867489U (en) | Electric conduction bolt | |
| CN210431930U (en) | Energy-saving heating pipe | |
| CN203150732U (en) | Copper-aluminum equipment wire clamp | |
| CN208571001U (en) | A kind of copper tip | |
| CN201498666U (en) | Electrical connector combination | |
| CN202280715U (en) | Conducting bolt | |
| CN202152011U (en) | Built-in electrifier device of electric flat carriage | |
| CN201562767U (en) | Power transmission busbar | |
| CN201698915U (en) | Explosion-proof vacuum electromagnetic starter for mining | |
| CN206250401U (en) | A kind of torque copper-aluminium transition equipment cable clamp | |
| CN202134692U (en) | Heavy current contact for magnetic particle flaw detector | |
| CN205159182U (en) | Just, repair durable type knife switch | |
| CN201072845Y (en) | Sparking plug | |
| CN203931982U (en) | A kind of contact system of circuit breaker | |
| CN205004248U (en) | On seat of being qualified for next round of competitions | |
| CN203895341U (en) | Combined contact for high-voltage isolating switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090923 |
|
| CX01 | Expiry of patent term |