CN100361245C - Self-cleaning type cam-operated switch capable of being turning on-off quickly - Google Patents
Self-cleaning type cam-operated switch capable of being turning on-off quickly Download PDFInfo
- Publication number
- CN100361245C CN100361245C CNB2005101116595A CN200510111659A CN100361245C CN 100361245 C CN100361245 C CN 100361245C CN B2005101116595 A CNB2005101116595 A CN B2005101116595A CN 200510111659 A CN200510111659 A CN 200510111659A CN 100361245 C CN100361245 C CN 100361245C
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- Prior art keywords
- contact
- cam
- self
- turning
- operated switch
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Abstract
The present invention discloses a rapid turning on-off self-cleaning type cam-operated switch which comprises a contact base, a cam arranged on the contact base and a movable contact mechanism, wherein a supporting frame positioned on the side surface of the cam in the movable contact mechanism is connected with one end of a metal supporting member of which both sides are provided with wedge-shaped notches. The bottoms of two contacts arranged in the wedge-shaped notches form a knife edge shape, and a spring is arranged between the two contacts; a compression spring is arranged between the other end of the metal supporting member and the inner wall of the contact base. The present invention solves the problems that the turning on-off speed of the contact of the cam-operated switch is slow and is easy to cause drawn arc, and the contact is easy to cause poor contact due to ash deposit.
Description
Technical field
The present invention relates to a kind of self-clean cam switch of quick break-make.
Background technology
Cam switch is meant the electrical equipment of adjusting and control the contact operating state by camming movement.Present stage, what generally continue to use is the structure of developing for many years, is equipped with the contact of a double-contact on the support of flank of cam, and the compression spring is housed between the sidewall of contact and contact pedestal.When cam rotation, support along with camming movement driving moving of contact, thereby realize the disconnection and the connection of contact.Switch is in on-state when support is positioned at the concave point of cam, and switch is in off-state when support is positioned at the salient point of cam.The disjunction speed of contact is subjected to the influence of cam face in this structure, does not reach than higher disjunction speed, causes arcing easily, because the volume of switch own is less, arc quenching system can't be set, and makes the arcing phenomenon be difficult to avoid.And the displacement that can not rub before and after contact of sound contact, the consequence of loose contact is caused easily easily because of dust stratification in the contact when contact surface has impurity.
Summary of the invention
Technical problem to be solved by this invention is: a kind of overcome above-mentioned deficiency, break-make and remove the self-clean cam switch of contact surface impurity fast are provided.
The present invention is achieved like this:
A kind of self-clean cam switch of quick break-make, comprise contact pedestal, be arranged on cam, fixed contact on the contact pedestal and the moving contact mechanism that matches with fixed contact, in moving contact mechanism, the support that is positioned at flank of cam is connected with an end of metal carrier, the both sides of metal carrier are provided with the wedge shape notch, the bottom that is separately positioned on two contacts in the wedge shape notch is an edge of a knife shape, be provided with a spring between two contacts, be provided with the compression spring between the other end of metal carrier and the contact pedestal madial wall.
When described support was positioned at the cam concave point, cam switch was an off-state; When described support was positioned at salient point, cam switch was an on-state.
Described contact pedestal is provided with two described moving contact mechanisms, lays respectively at the both sides of cam.
The present invention is an off-state when adopting support to be positioned at the cam concave point, is on-state when being positioned at the cam salient point.Switch is in rotary course, cam rotation makes the support parallel sliding, driving metal carrier moves simultaneously, the moving contact of metal carrier both sides is under the effect of spring force, after surpassing the equilbrium position, can move with very fast speed, realize that dynamic/static contact is connected fast and quick the disconnection, improved the speed of the contact and the disconnection of contact, can make cam switch accomplish quick break-make, and moving contact is understood and fixed contact generation friction displacement in the course of action that switches on and off, and the impurity of contact surface is removed by This move, avoid the generation of loose contact phenomenon, improved the electric property of cam switch.
Description of drawings
Accompanying drawing structural representation of the present invention;
Wherein: 1, contact pedestal; 2, fixed contact; 3, moving contact; 4, spring base; 5, spring;
6, metal carrier; 7, spring; 8, support; 9, cam;
Embodiment
With reference to the accompanying drawings, be provided with fixed contact 2 and spring base 4 in the contact pedestal 1, cam 9 is positioned at the central authorities of contact pedestal 1, and its side is placed the support 8 that is embedded with metal carrier 6; Metal carrier 6 both sides are provided with the wedge shape notch, and the bottom that is two moving contacts 3 of edge of a knife shape is placed in the wedge shape notch, and connect with spring 7.Metal carrier 6 and between the spring base 4 of contact pedestal 1 madial wall, be provided with spring 5.
Claims (3)
1, a kind of self-clean cam switch of quick break-make, comprise contact pedestal, be arranged on cam, fixed contact on the contact pedestal and the moving contact mechanism that matches with fixed contact, it is characterized in that: in described moving contact mechanism, the support that is positioned at flank of cam is connected with an end of metal carrier, the both sides of metal carrier are provided with the wedge shape notch, the bottom that is separately positioned on two contacts in the wedge shape notch is an edge of a knife shape, be provided with a spring between two contacts, be provided with the compression spring between the other end of metal carrier and the contact pedestal madial wall.
2, cam switch according to claim 1 is characterized in that: when described support was positioned at the cam concave point, cam switch was an off-state; When described support was positioned at salient point, cam switch was an on-state.
3, cam switch according to claim 1 is characterized in that: described contact pedestal is provided with two described moving contact mechanisms, lays respectively at the both sides of cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101116595A CN100361245C (en) | 2005-12-19 | 2005-12-19 | Self-cleaning type cam-operated switch capable of being turning on-off quickly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101116595A CN100361245C (en) | 2005-12-19 | 2005-12-19 | Self-cleaning type cam-operated switch capable of being turning on-off quickly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1801420A CN1801420A (en) | 2006-07-12 |
| CN100361245C true CN100361245C (en) | 2008-01-09 |
Family
ID=36811317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101116595A Expired - Fee Related CN100361245C (en) | 2005-12-19 | 2005-12-19 | Self-cleaning type cam-operated switch capable of being turning on-off quickly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100361245C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559927A (en) * | 2018-11-21 | 2019-04-02 | 中国航发北京航科发动机控制系统科技有限公司 | A kind of adjustable rotary motion trigger device of trigger angle |
| CN112582202B (en) * | 2020-11-26 | 2022-08-19 | 国网河南省电力公司商丘供电公司 | Vacuum circuit breaker for power distribution system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3928740A (en) * | 1973-02-23 | 1975-12-23 | Naimer H L | Rotary switch |
| DE3327675A1 (en) * | 1983-07-30 | 1985-02-07 | Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn | Switching chamber for cam switches |
| CN2042238U (en) * | 1988-08-24 | 1989-08-02 | 大连铁道学院 | High-efficiency universal change-over switch |
| JP2000133088A (en) * | 1998-10-21 | 2000-05-12 | Fuji Electric Ind Co Ltd | Cam switch |
| CN2572538Y (en) * | 2002-05-31 | 2003-09-10 | 上海广为电器工具厂 | Low voltage two-way conversion switch |
| CN2852357Y (en) * | 2005-12-19 | 2006-12-27 | 上海伊莱克斯实业有限公司 | Rapid on-off self-cleaning type cam-operated switch |
-
2005
- 2005-12-19 CN CNB2005101116595A patent/CN100361245C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3928740A (en) * | 1973-02-23 | 1975-12-23 | Naimer H L | Rotary switch |
| DE3327675A1 (en) * | 1983-07-30 | 1985-02-07 | Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn | Switching chamber for cam switches |
| CN2042238U (en) * | 1988-08-24 | 1989-08-02 | 大连铁道学院 | High-efficiency universal change-over switch |
| JP2000133088A (en) * | 1998-10-21 | 2000-05-12 | Fuji Electric Ind Co Ltd | Cam switch |
| CN2572538Y (en) * | 2002-05-31 | 2003-09-10 | 上海广为电器工具厂 | Low voltage two-way conversion switch |
| CN2852357Y (en) * | 2005-12-19 | 2006-12-27 | 上海伊莱克斯实业有限公司 | Rapid on-off self-cleaning type cam-operated switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1801420A (en) | 2006-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 Termination date: 20111219 |