CN201638761U - Contact adhesion prevention type electromagnetic switch - Google Patents
Contact adhesion prevention type electromagnetic switch Download PDFInfo
- Publication number
- CN201638761U CN201638761U CN2010201183825U CN201020118382U CN201638761U CN 201638761 U CN201638761 U CN 201638761U CN 2010201183825 U CN2010201183825 U CN 2010201183825U CN 201020118382 U CN201020118382 U CN 201020118382U CN 201638761 U CN201638761 U CN 201638761U
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- contact plate
- fixed
- contact
- dish
- static contact
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Abstract
The utility model discloses a contact adhesion prevention type electromagnetic switch, which comprises a casing, an end cover fixed at one end of the casing and an iron core shaft. One end of the iron core shaft extends out of the end face of the casing; a dynamic contact plate is fixed onto the iron core shaft; the dynamic contact plate is positioned inside a cavity of the end cover; a static contact B terminal and a static contact M terminal with static contact plates are fixed onto the end face of the end cover; the static contact plate is positioned on the side of the dynamic contact plate; an alloy contact plate is fixed on the face of the static contact plate facing the dynamic contact plate; the alloy contact plate is a silver molybdenum alloy contact plate; and the dynamic contact plate moves toward the direction of the static contact plate to tightly press the static contact plate which the silver molybdenum alloy contact plate is fixed on when the dynamic contact plate is acted by electromagnetic force of a switch. The contact adhesion prevention type electromagnetic switch adopts a mode of arranging the silver molybdenum alloy contact plate on the static contact plate, and solves the problem that as the dynamic contact plate and the static contact plate of the electromagnetic switch generate electric arcs by large current when contacting mutually and being disconnected to cause long-term adhesion or burning of contacts of the dynamic contact plate and the static contact plate and burn through of an engine.
Description
Technical field
The utility model relates to a kind of anti-contact adhesive type electromagnetic switch that starter starts that is used to control.
Background technology
Electromagnetic switch is the major control element of starter, moving of it, the stationary contact dish is made of copper usually, it is the path that big electric current passes through in the starter start-up course, electromagnetic switch commonly used at present is when starter starts, its movable contact dish is subjected to the effect of switch electromagnetic force, move to stationary contact dish direction and tightly push down the stationary contact dish, thereby connect main circuit and start starter, but contact with the stationary contact dish or disconnect moment at the movable contact dish, because the electric current that passes through is very big, be easy to generate electric arc, cause movable contact dish and stationary contact dish to produce adhesion so probably and can't throw off or burn out, its consequence is exactly that starter is in round-the-clock operating condition for a long time and finally burns.
The utility model content
The technical problems to be solved in the utility model is: overcome the deficiency in the prior art, a kind of anti-contact adhesive type electromagnetic switch is provided, and the movable contact dish that solves owing to electromagnetic switch is easy to generate long-time adhesion or burns out the problem that causes that starter burns with the stationary contact dish when contacting.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of anti-contact adhesive type electromagnetic switch, comprise housing, be fixed on the end cap and the iron mandrel of housing one end, one end of iron mandrel stretches out the housing end face and is fixed with the movable contact dish, the movable contact dish is positioned at the cavity of end cap, be fixed with the fixed contact B terminal and the fixed contact M terminal of band stationary contact dish on the end face of end cap, the stationary contact dish is positioned at movable contact dish side, the movable contact dish is subjected to the effect of switch electromagnetic force, move and tightly push down the stationary contact dish to stationary contact dish direction, described stationary contact dish is fixed with the alloy contact on the movable contact dish side.
Furtherly, for improving the contact electric conductivity, described alloy contact adopts silver-molybdenbum to make.
The beneficial effects of the utility model are: the utility model adopts the mode that the silver-molybdenbum contact is set on the stationary contact dish; utilize the characteristics of silver-molybdenbum contact good conductivity; thereby strengthen the electric conductivity that contacts of movable contact dish and stationary contact dish; the phenomenon that prevents the movable contact dish that causes owing to contact arc and stationary contact dish from producing adhesion and can't throw off or burn out, the security of operation of protection starter.
Description of drawings
Below in conjunction with drawings and embodiments the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
1. housings, 2. end caps, 21. cavitys, 3. iron mandrels, 4. movable contact dishes, 5. stationary contact dishes, 6. fixed contact B terminals, 7. fixed contact M terminals, 8. alloy contacts among the figure
Embodiment.
In conjunction with the accompanying drawings the utility model is further described now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of anti-contact adhesive type electromagnetic switch as shown in Figure 1, comprise housing 1, assembly unshakable in one's determination is fixed in the housing 1, its iron mandrel 3 stretches out housing 1 two ends respectively, housing 1 one ends are fixed with end cap 2, the cavity 21 that end cap 2 has is pressed close to housing 1 one ends, be fixed with movable contact dish 4 on iron mandrel's 3 one ends, movable contact dish 4 is positioned at the cavity 21 of end cap 2, on the end face of end cap 2, be fixed with the fixed contact B terminal 6 and the fixed contact M terminal 7 of band stationary contact dish 5, fixed contact B terminal 6 and the 7 parallel distributions of fixed contact M terminal, stationary contact dish 5 is positioned at movable contact dish 4 sides, described stationary contact dish 5 is fixed with alloy contact 8 on movable contact dish 4 sides, movable contact dish 4 is subjected to the effect of switch electromagnetic force, move and tightly push down the stationary contact dish 5 that is fixed with alloy contact 8 to stationary contact dish 5 directions, for improving the contact electric conductivity better, the described alloy contact 8 employing silver-molybdenbum of present embodiment are made.
The utility model utilizes the characteristics of the contact good conductivity that silver-molybdenbum makes; be fixed in stationary contact dish 5 and movable contact dish 4 contacted surfaces; thereby the electric conductivity when strengthening movable contact dish 4 and contacting with stationary contact dish 5; be difficult for producing contact arc; the phenomenon that prevents movable contact dish 4 from when contacting, producing adhesion and can't throw off or burn out with stationary contact dish 5, the security of operation of protection starter.
With above-mentioned foundation execution mode of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from the utility model technological thought.Technical scope of the present utility model is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (2)
1. anti-contact adhesive type electromagnetic switch, comprise housing (1), be fixed on the end cap (2) and the iron mandrel (3) of housing (1) one end, one end of iron mandrel (3) stretches out housing (1) end face and is fixed with movable contact dish (4), movable contact dish (4) is positioned at the cavity (21) of end cap (2), be fixed with the fixed contact B terminal (6) and the fixed contact M terminal (7) of band stationary contact dish (5) on the end face of end cap (2), stationary contact dish (5) is positioned at movable contact dish (4) side, it is characterized in that: described stationary contact dish (5) is fixed with alloy contact (8) on movable contact dish (4) side, movable contact dish (4) is subjected to the effect of switch electromagnetic force, moves to stationary contact dish (5) direction and tightly pushes down the stationary contact dish (5) that is fixed with alloy contact (8).
2. according to claim 1, it is characterized in that: described alloy contact (8) adopts silver-molybdenbum to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201183825U CN201638761U (en) | 2010-02-24 | 2010-02-24 | Contact adhesion prevention type electromagnetic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201183825U CN201638761U (en) | 2010-02-24 | 2010-02-24 | Contact adhesion prevention type electromagnetic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201638761U true CN201638761U (en) | 2010-11-17 |
Family
ID=43083266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201183825U Expired - Fee Related CN201638761U (en) | 2010-02-24 | 2010-02-24 | Contact adhesion prevention type electromagnetic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201638761U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118742A (en) * | 2015-08-24 | 2015-12-02 | 锦州汉拿电机有限公司 | Contact-adhesion-resistant solenoid switch for starter |
| CN105489449A (en) * | 2016-02-05 | 2016-04-13 | 中国电子科技集团公司第四十研究所 | Rotatable contact structure of direct-current electromagnetic relay |
| CN110000374A (en) * | 2019-04-15 | 2019-07-12 | 福达合金材料股份有限公司 | A kind of preparation process and products thereof of silver molybdenum contact material |
-
2010
- 2010-02-24 CN CN2010201183825U patent/CN201638761U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105118742A (en) * | 2015-08-24 | 2015-12-02 | 锦州汉拿电机有限公司 | Contact-adhesion-resistant solenoid switch for starter |
| CN105489449A (en) * | 2016-02-05 | 2016-04-13 | 中国电子科技集团公司第四十研究所 | Rotatable contact structure of direct-current electromagnetic relay |
| CN110000374A (en) * | 2019-04-15 | 2019-07-12 | 福达合金材料股份有限公司 | A kind of preparation process and products thereof of silver molybdenum contact material |
| CN110000374B (en) * | 2019-04-15 | 2021-05-07 | 福达合金材料股份有限公司 | Preparation process of silver-molybdenum contact material and product thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20101117 Termination date: 20140224 |