CN2852357Y - Rapid on-off self-cleaning type cam-operated switch - Google Patents
Rapid on-off self-cleaning type cam-operated switch Download PDFInfo
- Publication number
- CN2852357Y CN2852357Y CN 200520047648 CN200520047648U CN2852357Y CN 2852357 Y CN2852357 Y CN 2852357Y CN 200520047648 CN200520047648 CN 200520047648 CN 200520047648 U CN200520047648 U CN 200520047648U CN 2852357 Y CN2852357 Y CN 2852357Y
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- CN
- China
- Prior art keywords
- cam
- contact
- contacts
- self
- operated switch
- 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
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Abstract
The utility model discloses a rapid 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. In the movable contact mechanism, a support frame at the flank of the cam is connected with one end of a metallic support element, wherein both sides of the metallic support element are provided with wedge-shaped notches. The bottom parts of two contacts arranged in the wedge-shaped notches form a knife-edge shape. A spring is arranged between the two contacts. Moreover, a compression spring is arranged between the other end of the metal support element and the inner wall of the contact base. The utility model solves the problems that the contacting speed and the switching speed of the existing cam-operated switch are relatively slow, which is easy to cause arcs and bad contact caused by ash deposition can happen to the contacts.
Description
Technical field
The utility model 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 causes the consequence of loose contact easily when contact surface has impurity.
Summary of the invention
Technical problem to be solved in the utility model 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 utility model 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, the other end of metal carrier and and the contact pedestal madial wall between be provided with the compression spring.
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 utility model 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 utility model;
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, the other end of metal carrier and and the contact pedestal madial wall between be provided with the compression spring.
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 |
|---|---|---|---|
| CN 200520047648 CN2852357Y (en) | 2005-12-19 | 2005-12-19 | Rapid on-off self-cleaning type cam-operated switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047648 CN2852357Y (en) | 2005-12-19 | 2005-12-19 | Rapid on-off self-cleaning type cam-operated switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2852357Y true CN2852357Y (en) | 2006-12-27 |
Family
ID=37586313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520047648 Expired - Lifetime CN2852357Y (en) | 2005-12-19 | 2005-12-19 | Rapid on-off self-cleaning type cam-operated switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2852357Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361245C (en) * | 2005-12-19 | 2008-01-09 | 上海伊莱克斯实业有限公司 | Self-cleaning type cam-operated switch capable of being turning on-off quickly |
| CN108376620A (en) * | 2018-04-02 | 2018-08-07 | 沈阳斯沃电器有限公司 | A kind of operation mechanism for low-tension switch compression mechanism |
-
2005
- 2005-12-19 CN CN 200520047648 patent/CN2852357Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361245C (en) * | 2005-12-19 | 2008-01-09 | 上海伊莱克斯实业有限公司 | Self-cleaning type cam-operated switch capable of being turning on-off quickly |
| CN108376620A (en) * | 2018-04-02 | 2018-08-07 | 沈阳斯沃电器有限公司 | A kind of operation mechanism for low-tension switch compression mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080109 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |