CN2692814Y - Metallic contact for electric apparatus switch - Google Patents
Metallic contact for electric apparatus switch Download PDFInfo
- Publication number
- CN2692814Y CN2692814Y CN 200420005628 CN200420005628U CN2692814Y CN 2692814 Y CN2692814 Y CN 2692814Y CN 200420005628 CN200420005628 CN 200420005628 CN 200420005628 U CN200420005628 U CN 200420005628U CN 2692814 Y CN2692814 Y CN 2692814Y
- Authority
- CN
- China
- Prior art keywords
- contact
- head
- contact head
- switch
- contacts
- 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
Landscapes
- Contacts (AREA)
Abstract
The utility model discloses a metallic contact for an electric apparatus switch, comprising a movable contact head and a static contact head matched with the movable contact head. The contact surfaces of the two metallic contacts are a concave surface and a convex surface which are mutually matched, and the height of the convex surface is longer than the depth of the concave surface. When the contacts of the electric apparatus are connected, the bad contact of the contacts caused by the looseness of a contact arm, the existing inclination of the connecting angle and the unparallel dislocation can be made up. The contact area of the contacts is always ensured to keep the good connection of the switch. The enlargement of current and the excess load of the elements caused by the bad contact of the switch are avoided, and thus the potential safety hazard is eliminated.
Description
Technical field
The utility model relates to a kind of appliance switch, relates in particular to a kind of metal contact of appliance switch.
Background technology
Appliance switch is widely used in the control circuit of electromechanical equipment, and it controls cut-out, connection or the conversion of appliance circuit by the disconnection and the connecting moves of metal contact.
The contact-making surface of the metal contact of appliance switch of the prior art is formed by two planes or plane and a sphere, and switch disconnected closed contact-making surface that mechanism must make its contact and be parallel to each other and do not misplace, and could guarantee that the good contact of its metal contact is switched on.But in actual applications because the pressurized difference of metal contact, angle, when contact position is not parallel, contact area between the metal contact will change, and is too small when contact area, causes contact current to increase, overheated and the generation spark of electrode excess load, make the metal contact arc erosion, the insulation of electric appliance component reduces, the assembly distortion, reduce the useful life of element or bring out electrical short-circuit, cause fire incident.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of contact area that can guarantee contact all the time is provided, and makes switch engage good appliance switch metal contact.
The technical solution adopted in the utility model is: a kind of appliance switch metal contact, comprise moving contact head and quiet contact head, and the contact-making surface of two contact heads is concave surface and the convex surface that cooperatively interacts, described convex surface height is higher than the concave surface degree of depth.
Further, the contact-making surface of described moving contact head is a convex surface, the concave surface of the contact-making surface of described quiet contact head for matching with described moving contact head convex surface.
Further, the contact-making surface of described moving contact head is a concave surface, the convex surface of the contact-making surface of described quiet contact head for matching with described moving contact head concave surface.
Adopt the technical solution of the utility model, because the employing of the contact-making surface of the moving contact head of appliance switch metal contact and quiet contact head is protruding, the cooperation of concave surface, and the convex surface height is higher than the concave surface degree of depth.Even move when not parallel in contact arm, also can guarantee the contact area when two contacts engage to greatest extent, avoid the switch loose contact and cause electric current to increase, thereby eliminate safe hidden trouble.
Description of drawings
The metal contact that Fig. 1 shows an embodiment of the present utility model is in the cutaway view when disconnecting;
Fig. 2 shows metal contact shown in Figure 1 and is in cutaway view when connecting.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the utility model appliance switch metal contact comprises moving contact head 1 and quiet contact head 2, moving contact head 1 is fixedly mounted on an end of the movable contact rod 4 of appliance switch, quiet contact head 2 is fixedly mounted on appliance switch seat 3 and the moving contact head 1 corresponding position, the contact-making surface of moving contact head 1 and quiet contact head 2 is the sphere that cooperatively interacts, and the sphere height of moving contact head 1 is the twice of the sphere degree of depth of quiet contact head 2.
Depress movable contact rod 4, moving contact head 1 moves down with movable contact rod 4 and contacts with quiet contact head 2, as shown in Figure 2, and when electrical contact engages, can remedy because of contact arm loosening, in esse engagement angles tilts, and not parallel dislocation causes the contact loose contact, can guarantee the contact area of two contacts all the time, it is good that switch is engaged, avoid the switch loose contact and send a telegraph the stream increase, element in distress eliminates safe hidden trouble.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model, the utility model can also have multiple improvement and other preferred embodiment, contact-making surface as the utility model electrical contact can also manufacture arc surface, polygon facet or Gothic face, the contact area when guaranteeing that to greatest extent contact engages; Therefore, although this specification has been described in detail the utility model with reference to the above embodiments,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. an appliance switch metal contact comprises moving contact head and quiet contact head, and it is characterized in that: the contact-making surface of described moving contact head and quiet contact head is concave surface and the convex surface that cooperatively interacts, and described convex surface height is higher than the concave surface degree of depth.
2. appliance switch metal contact according to claim 1 is characterized in that: the contact-making surface of described moving contact head is a convex surface, the concave surface of the contact-making surface of described quiet contact head for matching with described moving contact head convex surface.
3. appliance switch metal contact according to claim 1 is characterized in that: the contact-making surface of described moving contact head is a concave surface, the convex surface of the contact-making surface of described quiet contact head for matching with described moving contact head concave surface.
4. according to claim 1, the described appliance switch metal contact of 2 or 3 arbitrary claims, it is characterized in that: the contact-making surface of described moving contact head is a sphere, the sphere of the contact-making surface of described quiet joint for matching with described moving contact-making surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420005628 CN2692814Y (en) | 2004-02-27 | 2004-02-27 | Metallic contact for electric apparatus switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420005628 CN2692814Y (en) | 2004-02-27 | 2004-02-27 | Metallic contact for electric apparatus switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2692814Y true CN2692814Y (en) | 2005-04-13 |
Family
ID=34767578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420005628 Expired - Fee Related CN2692814Y (en) | 2004-02-27 | 2004-02-27 | Metallic contact for electric apparatus switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2692814Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452261C (en) * | 2006-05-15 | 2009-01-14 | 米德云 | Method and apparatus for on-off circuit safety |
| CN103227077A (en) * | 2012-01-27 | 2013-07-31 | 德昌电机(深圳)有限公司 | Contact arrangement for high-power electrical switching devices |
| CN105304400A (en) * | 2015-11-02 | 2016-02-03 | 宁波耐吉新星自动化设备有限公司 | Novel vacuum arc-extinguishing chamber for solid insulated ring main unit |
| CN112166485A (en) * | 2018-04-24 | 2021-01-01 | 泰连公司 | Electromechanical switch with movable and fixed contacts |
-
2004
- 2004-02-27 CN CN 200420005628 patent/CN2692814Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452261C (en) * | 2006-05-15 | 2009-01-14 | 米德云 | Method and apparatus for on-off circuit safety |
| CN103227077A (en) * | 2012-01-27 | 2013-07-31 | 德昌电机(深圳)有限公司 | Contact arrangement for high-power electrical switching devices |
| CN105304400A (en) * | 2015-11-02 | 2016-02-03 | 宁波耐吉新星自动化设备有限公司 | Novel vacuum arc-extinguishing chamber for solid insulated ring main unit |
| CN105304400B (en) * | 2015-11-02 | 2018-10-02 | 宁波耐吉新星自动化设备有限公司 | Vacuum interrupter for solid insulation ring main unit |
| CN112166485A (en) * | 2018-04-24 | 2021-01-01 | 泰连公司 | Electromechanical switch with movable and fixed contacts |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2692814Y (en) | Metallic contact for electric apparatus switch | |
| CN103227077A (en) | Contact arrangement for high-power electrical switching devices | |
| US7488217B2 (en) | Electric power connector | |
| CN1596454A (en) | Low-voltage circuit breaker | |
| CN105762039B (en) | Breaker contact system and breaker | |
| CN212257298U (en) | Multi-contact arc-extinguishing relay | |
| CN1163933C (en) | Electrical circuit breakers | |
| CN208570446U (en) | A kind of disconnecting switch | |
| CN108538677B (en) | Isolation switch | |
| CN214068610U (en) | Button structure and switch | |
| CN210272121U (en) | Electric tool switch with quick breaking function | |
| US10699861B2 (en) | Rocker switch | |
| CN103441016A (en) | Power type microswitch | |
| CN2212830Y (en) | Multiple-contact for low-voltage electrical element | |
| CN208580694U (en) | A kind of novel vacuum circuit breaker | |
| CN205911187U (en) | Friction formula generating line transfer current structure that opens and shuts | |
| CN102891020A (en) | Low voltage isolation switch device | |
| CN205621653U (en) | Aerify transmission that looped netowrk cabinet circuit breaker used and aerify looped netowrk cabinet circuit breaker | |
| CN221447019U (en) | Micro-motion mechanical switch for circuit conversion | |
| CN213691928U (en) | Current-carrying device of over-current switch | |
| CN205140896U (en) | Connection structure and circuit breaker of circuit breaker electrode | |
| CN2631033Y (en) | Outdoor alternating-current high-voltage drop-off fuse box | |
| CN117477296B (en) | High-current terminal and connector | |
| CN208819780U (en) | A kind of pressure release mechanism | |
| CN202957170U (en) | Isolating switch with arc extinction structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |