CN207441489U - A kind of switch contact structure with automatic cleaning function - Google Patents
A kind of switch contact structure with automatic cleaning function Download PDFInfo
- Publication number
- CN207441489U CN207441489U CN201721563430.XU CN201721563430U CN207441489U CN 207441489 U CN207441489 U CN 207441489U CN 201721563430 U CN201721563430 U CN 201721563430U CN 207441489 U CN207441489 U CN 207441489U
- Authority
- CN
- China
- Prior art keywords
- contact
- moving contact
- rack
- connecting rod
- moving
- 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.)
- Withdrawn - After Issue
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- Elimination Of Static Electricity (AREA)
- Push-Button Switches (AREA)
Abstract
The utility model discloses a kind of switch contact structures with automatic cleaning function, including static contact bearing and moving contact rack, static contact is provided on static contact bearing, it is provided with and moving contact by the rotation of the second shaft on moving contact rack, the bottom of moving contact rack is fixedly connected with connecting rod, connecting rod end is rotatably connected to hold-down support by first rotating shaft, push rod is rotatably connected to by the 3rd shaft in the middle part of connecting rod, the push rod is movably arranged on hold-down support, the bottom of the moving contact is provided with the position-arresting part to lean with moving contact rack, the connecting rod front end or/and push rod bottom attended operation power source；The utility model is simple and reasonable, the metal oxide on electric conductor surface and dirt can be removed using mutual rubbing when switching on/off switch between static contact and moving contact contact surface, realize the automatically cleaning of contact, ensure good conductive effect, the Wen Sheng during contact use is reduced, is conducive to improve the service life of switch.
Description
Technical field
The utility model belongs to electrical equipment technical field, and in particular to a kind of switch contact with automatic cleaning function
Structure.
Background technology
At present, largely using switchgears such as various disconnecting switch, breaker, contactors in electric system.Switch is set
Standby structure of contact terminal has generally comprised moving contact and static contact, and the contacts of some switchgears is direct dynamic structure, some switches
The contact of equipment is clapper-type structure.
Contact is in long-term use, it may appear that problems with：Switch band carries disjunction or overload, and contact surface is in electric arc
Under the action of have metallic particles protrusion or foreign matter, simultaneously because contact surface exposure be susceptible to surface oxidation in air
Phenomenon, these reasons can cause the loose contact of contact or contact resistance to rise, contact caused to overheat, such as carry out not in time
Cleaning will seriously affect the normal work of switchgear.
The contact apparatus of some existing switchgears is accompanied with special cleaning mechanism, these cleaning mechanism general structures are all
It is more complicated.
Utility model content
The purpose of this utility model is that it is insufficient according to prior art, design a kind of switch with automatic cleaning function
Structure of contact terminal can automatically clean the oxide layer of metallic particles on contact surface contact, foreign matter and contact surface.
Technical solution is used by the utility model solves its technical problem：A kind of switch with automatic cleaning function
Including static contact bearing and moving contact rack, static contact is fixedly installed on the static contact bearing for structure of contact terminal, described
The moving contact being used cooperatively with static contact is provided with by the rotation of the second shaft on moving contact rack, the moving contact rack
Bottom is fixedly connected with connecting rod, and the connecting rod end is rotatably connected to hold-down support, the company by first rotating shaft
The push rod that can be relatively fixed bearing and move up and down is rotatably connected to by the 3rd shaft in the middle part of extension bar, push rod activity is set
On hold-down support, the bottom of the moving contact is provided with the position-arresting part to lean with moving contact rack, the connecting rod
Front end or/and push rod bottom attended operation power source.
A kind of switch contact structure with automatic cleaning function is provided with the stationary contact of slope shape on static contact
Head contact surface, is provided with the slope shape moving contact contact surface being used cooperatively with static contact contact surface on the moving contact.
A kind of switch contact structure with automatic cleaning function, is set between moving contact and moving contact rack
There is touch spring.
A kind of switch contact structure with automatic cleaning function, moving contact rack bottom is fixedly installed company
Fitting, the connecting rod are fixed on connector.
A kind of switch contact structure with automatic cleaning function, connector are bolted in moving contact
On stent.
A kind of switch contact structure with automatic cleaning function is provided with resetting spring on push rod.
The beneficial effects of the utility model are：The utility model is simple and reasonable, in switch, utilizes moving contact
And the automated cleaning of moving contact and stationary contact head surface is completed in mutual rubbing when static contact conducting and separation between contact, for leading
The metal oxide and dirt on electric conductor surface can be removed for electric interface, ensures good conductive effect, reduces contact
Using process medium temperature liter, be conducive to improve the service life switched；And moving contact can configure two or more mutually it is only
Vertical operation power source, to improve breaking capacity and expand use scope.
Description of the drawings
Fig. 1 is structure diagram when the utility model disconnects；
Fig. 2 is structure diagram when the utility model just closes a floodgate；
Fig. 3 is structure diagram when the utility model further closes a floodgate.
Each reference numeral is：1-static contact bearing, 2-static contact, 21-static contact contact surface, 3-moving contact, 31-
Moving contact contact surface, 4-touch spring, 5-moving contact rack, 6-connector, 7-connecting rod, 8-push rod, 9-fixed
Seat, the 10-the three shaft, 11-first rotating shaft, the 12-the second shaft, 13-position-arresting part, 14-first make contact, 15-the second
Contact point.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
Referring to figs. 1 to shown in Fig. 3, the utility model discloses a kind of switch contact structure with automatic cleaning function,
Including static contact bearing 1, moving contact rack 5, the static contact 2 being fixed on static contact bearing 1 and pass through the second shaft 12
The moving contact 3 for being rotatably arranged on moving contact rack 5 and being used cooperatively with static contact 2, the bottom of the moving contact rack 5 lead to
It crosses connector 6 and is fixedly connected with connecting rod 7, the connector 6 is bolted on moving contact rack 5.The company
Extension bar 7 is rotatably connected to hold-down support 9 and push rod 8,7 He of connecting rod respectively by 11 and the 3rd shaft 10 of first rotating shaft
Moving contact rack 5 can be rotated around first rotating shaft 11, and the push rod 8 is movably arranged on hold-down support 9, can be relatively fixed bearing
9 move up and down.
The connecting rod 7 can be directly connected to operation power source or by 8 attended operation of the 3rd shaft 10 and push rod
Power source can also connect two or more operation power sources simultaneously, be touched so as to greatly improve the utility model switch
The breaking capacity of header structure and expansion use scope.
When operation power source drive connection bar 7 is rotated around first rotating shaft 11, connecting rod 7 drives 5 turns of moving contact rack
Dynamic, moving contact rack 5 drives moving contact 3 to move by the second shaft 12.Operation power source also can driving push rod 8, push rod 8 passes through
3rd shaft, 10 drive connection bar 7 is rotated around first rotating shaft 11.
The static contact contact surface 21 of slope shape is provided on the static contact 2, be provided on the moving contact 3 with it is quiet
The slope shape moving contact contact surface 31 that contact face 21 is used cooperatively.The moving contact rack 5 drives moving contact 3 around first
Shaft 11 rotates, when the top of 5 rotary motion of moving contact rack to the top of moving contact 3 and static contact 2 is collided, moving contact 3
Start to rotate around the second shaft 12.Moving contact rack 5 continues rotary motion, then moving contact contact surface 31 and static contact contact surface
Rubbing occurs between 21, contact position moves down to middle part up to lower part by initial top, and then realizes the certainly clear of contact
It is clean.
Touch spring 4 is provided between the moving contact 3 and moving contact rack 5.The bottom of the moving contact 3 is set
There is the position-arresting part 13 being used cooperatively with moving contact rack 5.The touch spring 4 is to moving contact 3 with spring force, the stop bit
Portion 13 gives 3 initial alignment of moving contact.Moving contact 3 is linked together by the second shaft 12 with moving contact rack 5, and moving contact 3 exists
It is contacted under the action of touch spring 4 by its position-arresting part 13 with moving contact rack 5 and stop bit, moving contact 3 is collided with static contact 2
The effect of spring force can be overcome afterwards, rotated around the second shaft 12.
During work, moving contact 3 is rotated together with contact supporting 5 with connecting rod 7 around first rotating shaft 11, while moving contact 3
Contact static contact 2 is simultaneously rotated around the second shaft 12.According to Fig. 1, when switch disconnects, static contact contact surface 21 and moving contact connect
Contacting surface 31 separates.According to Fig. 2, switch has just closed firm timesharing, and connecting rod 7 is together with 5 turns of moving contact 3 and moving contact rack
Dynamic, moving contact 3 is in contact with static contact 2 and forms first make contact 14.According to Fig. 3, when switching further combined floodgate, even
Extension bar 7 is rotated further together with moving contact 3 and moving contact rack 5, and moving contact 3 starts under the obstruction of static contact 12 around the second shaft
12 rotate, first make contact 14 turn of the contact point between moving contact contact 31 and static contact contact surface 21 when being contacted just
Move to the second contact point 15 when movement terminates.In whole process, static contact contact surface 21 is with moving contact contact surface 31 by rubbing
The metal oxide and dirt on removal conductive contact surfaces are wiped or collide, it is achieved thereby that the cleaning of conductive contact surfaces.
In addition, being provided with resetting spring on push rod 8, push rod 8 can be made to be resetted downwards rapidly when switching and disconnecting.
The embodiment that the above embodiments are only illustrative of the principle and efficacy of the utility model and part uses,
For those of ordinary skill in the art, on the premise of not departing from the utility model and creating design, if can also make
Dry modification and improvement, these belong to the scope of protection of the utility model.
Claims (6)
1. a kind of switch contact structure with automatic cleaning function, it is characterised in that：Including static contact bearing（1）And moving contact
Stent（5）, the static contact bearing（1）On be fixedly installed static contact（2）, the moving contact rack（5）It is upper by the
Two shafts（12）Rotation is provided with and static contact（2）The moving contact being used cooperatively（3）, the moving contact rack（5）Bottom
It is fixedly connected with connecting rod（7）, the connecting rod（7）End passes through first rotating shaft（11）It is rotatably connected to hold-down support（9）,
The connecting rod（7）Middle part passes through the 3rd shaft（10）Bearing can be relatively fixed by being rotatably connected to（9）The push rod moved up and down
（8）, the push rod（8）It is movably arranged on hold-down support（9）On, the moving contact（3）Bottom be provided with and moving contact
Stent（5）The position-arresting part to lean（13）, the connecting rod（7）Front end or/and push rod（8）Bottom attended operation power source.
2. a kind of switch contact structure with automatic cleaning function according to claim 1, which is characterized in that described
Static contact（2）On be provided with the static contact contact surface of slope shape（21）, the moving contact（3）On be provided with and contacted with static contact
Face（21）The slope shape moving contact contact surface being used cooperatively（31）.
3. a kind of switch contact structure with automatic cleaning function according to claim 2, which is characterized in that described
Moving contact（3）With moving contact rack（5）Between be provided with touch spring（4）.
4. a kind of switch contact structure with automatic cleaning function according to claim 3, which is characterized in that described
Moving contact rack（5）Bottom is fixedly installed connector（6）, the connecting rod（7）It is fixed at connector（6）On.
5. a kind of switch contact structure with automatic cleaning function according to claim 4, which is characterized in that described
Connector（6）It is bolted in moving contact rack（5）On.
6. a kind of switch contact structure with automatic cleaning function according to claim 5, which is characterized in that described
Push rod（8）On be provided with resetting spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721563430.XU CN207441489U (en) | 2017-11-21 | 2017-11-21 | A kind of switch contact structure with automatic cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721563430.XU CN207441489U (en) | 2017-11-21 | 2017-11-21 | A kind of switch contact structure with automatic cleaning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207441489U true CN207441489U (en) | 2018-06-01 |
Family
ID=62287169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721563430.XU Withdrawn - After Issue CN207441489U (en) | 2017-11-21 | 2017-11-21 | A kind of switch contact structure with automatic cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207441489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749354A (en) * | 2017-11-21 | 2018-03-02 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | Switch contact structure with automatic cleaning function |
-
2017
- 2017-11-21 CN CN201721563430.XU patent/CN207441489U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749354A (en) * | 2017-11-21 | 2018-03-02 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | Switch contact structure with automatic cleaning function |
| CN107749354B (en) * | 2017-11-21 | 2020-05-29 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Switch contact structure with automatic cleaning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180601 Effective date of abandoning: 20200529 |
|
| AV01 | Patent right actively abandoned |