CN201449919U - Low-voltage electromagnetic disengaging knife switch - Google Patents
Low-voltage electromagnetic disengaging knife switch Download PDFInfo
- Publication number
- CN201449919U CN201449919U CN2009200245997U CN200920024599U CN201449919U CN 201449919 U CN201449919 U CN 201449919U CN 2009200245997 U CN2009200245997 U CN 2009200245997U CN 200920024599 U CN200920024599 U CN 200920024599U CN 201449919 U CN201449919 U CN 201449919U
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- China
- Prior art keywords
- contact
- knife switch
- copper
- voltage electromagnetic
- electromagnetic trip
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- 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
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Abstract
The utility model discloses a low-voltage electromagnetic disengaging knife switch, which is provided with a huge copper contact body and a cylindrical copper contact seat body. As a reaction pressure spring is arranged outside the contact seat body, the contact performance is greatly improved; and because conduction current doesn't exist in a rotational clamp body part of the huge copper contact body, loose contact and calorification are eliminated, thereby achieving favorable contact and durability of the switch, and avoiding the problems of the insecure clamping of a clamping piece, as well as high possibilities of heating, loose contact, electric arc and safety accidents of a rotational part with conduction current. A user can hold and push up an operating handle to close the switch, and press a stop button to open the switch.
Description
Technical field the utility model relates to switch, directly relates to low voltage electromagnetic trip knife switch, and the main line control and the branched line control that are specially adapted to low-tension distribution box or power distribution cabinet are used.
Background technology is used civil power in large, medium and small industrial and mining enterprises and the individual of unit, must dispose distribution box or power distribution cabinet, when mains supply enters the user, all must to the branch switch of each control loop, outwards export again by the operator switch and the contactor branch of distribution box or power distribution cabinet.The knife switch of current use generally is divided into open type three utmost points and open type four utmost points, the load end blade contact of switch is turned for the sheet activity, the power end contact is a U type clamp, logical during clamping for closing, when separating with U type clamp, blade is disconnection, this kind construction of switch is simple, and operation is easily used so far by people always.In long-term use,, also there is safe scarcely drawback though people find that also existing knife switch is practical.The blade activity is turned because number of operations is too much; through regular meeting blade appears and U type clamp clamps not strongly; heating appears in blade and U type clamp position and blade rotation position; metapyretic U type clamp stress changes will follow the string; metapyretic rotary part will rotate dumb; cause loose contact, electric arc occurs until burning out switch even also can causing dangerous accident to take place.
The summary of the invention the purpose of this utility model will provide a kind of improved low voltage electromagnetic trip knife switch exactly, it can overcome existing knife switch effectively, the blade and the U type clamp that exist clamp not strongly, heating appears in the rotating shaft position, loose contact, be prone to electric arc, the easy burn-out switch reaches the drawback that easily causes dangerous accident.
The purpose of this utility model is achieved in that low voltage electromagnetic trip knife switch, has the load termination contact, power end contact pedestal, and the handle handle, insulation board, described load termination contact are huge copper contact.
As a kind of improvement of the present utility model be: described power end contact pedestal is the copper pedestal of column type.The copper pedestal of column type can freely stretch in the insulation board eyelet.
As further improvement of the utility model be: the outer setting top pressure spring of the copper pedestal of described column type, the rear end of pedestal is provided with the line ball nut.
As another kind of improvement the of the present utility model be: the upper end of the copper pedestal of described column type is provided with can be for the wiring pile that connects copper soft strip conductor.
As another improvement project of the present utility model be: buckle but the upper end of described wiring pile is provided with the locking of locking handle latch hook, the upper end of locking button is provided with the electromagnetic trip pull in winding.
As another improvement project of the present utility model be: described load termination contact is huge copper contact, the bottom of huge copper contact is provided with grip slipper, the end of huge copper contact is provided with the line ball bolt, and the lower end of grip slipper is provided with can be for the junction block that connects copper soft strip conductor.
As another improvement project again of the present utility model be: the upper end of described huge copper contact is provided with handle frame, and the middle part of handle frame is provided with handle, and the handle middle part also is provided with latch hook.
The utility model is that huge copper contact is the copper structure that contacts pedestal of column type with power end owing to having adopted load end, knife switch now becomes face contact type by original clamping connection touch, because the outer setting back-pressure spring of the copper pedestal of column type, its contact performance is improved greatly, again because there is not conduction current in the rotary part of huge copper contact, there is not loose contact, there is not heating, thereby make that the switch contact is good, durable in use, thereby avoided folder to clamp not strongly, the rotating part conduction current easily generates heat, easily loose contact is prone to electric arc, easily causes the generation of dangerous accident.The hand-held operation handle upwards pushes to closing a floodgate, and presses stop button and is separating brake.
Appended drawings is the structure principle chart of the utility model low voltage electromagnetic trip knife switch, below in conjunction with accompanying drawing the utility model is further described.
The embodiment accompanying drawing shows the structure of the utility model low voltage electromagnetic trip knife switch, insulation board 1 upper end is provided with the copper pedestal 2 of column type, the outer setting top pressure spring 3 of the copper pedestal 2 of column type, the rear end of the copper pedestal 2 of column type is provided with line ball nut 4, the upper end of the copper pedestal 2 of column type is provided with can be for the wiring pile 6 that connects soft flat cable copper conductor 5, but the upper end of wiring pile 6 is provided with the locking of locking handle 12 and buckles 7, the upper end of locking button 7 is provided with electromagnetic trip pull in winding 8, the lower end of insulation board 1 is provided with can be for the clamp 10 of huge contact 9 rotations, the upper end of huge contact 9 is provided with handle frame 11, the middle part of handle frame 11 is provided with latch hook 13, and the lower end of insulation board 1 is provided with can be for the wiring pile 6 that connects huge cutter piece 9 copper soft strip conductors 5.
Installation process of the present utility model is: at first the copper pedestal 2 of column type is mounted on insulation board 1, copper soft strip conductor 5 is connected and fixed on line ball nut 4, wiring pile 6, clamp 10 is fixed in insulation board 1, huge contact 9 is fixed in handle frame 11 clamps 10, and copper soft strip conductor 5 is connected and fixed on line ball bolt 14, wiring pile 6, hold handle 12 and upwards push latch hook 13 hook lockings and buckle 7 and can finish, press stop button 15 and get final product automatic disconnection.
Claims (6)
1. low voltage electromagnetic trip knife switch has load termination contact and power end contact, it is characterized in that: described power end contact (2) is column type contact pedestal, and column type contact pedestal (2) can freely stretch in insulation board (1) eyelet.
2. low voltage electromagnetic trip knife switch according to claim 1 is characterized in that: the copper pedestal of described column type (2) outer setting back-pressure spring (3), the rear end of column type contact pedestal (2) is provided with line ball nut (4).
3. low voltage electromagnetic trip knife switch according to claim 1 and 2 is characterized in that: the upper end of described column type contact pedestal (2) is provided with can be for the wiring pile (6) that connects copper soft strip conductor (5).
4. low voltage electromagnetic trip knife switch according to claim 3 is characterized in that: described wiring pile (6) but upper end locking that locking handle (12), latch hook (13) be set buckle (7), the upper end of locking button (7) is provided with electromagnetic trip pull in winding (8).
5. low voltage electromagnetic trip knife switch according to claim 1, it is characterized in that: described load termination contact (9) is huge copper contact, the lower end of huge copper contact (9) is provided with line ball bolt (14), and the lower end of grip slipper (10) is provided with can be for the wiring pile (6) that connects copper soft strip conductor (5).
6. low voltage electromagnetic trip knife switch according to claim 5 is characterized in that: the upper end of described huge contact (9) is provided with handle frame (11), and the middle part of handle frame (11) is provided with handle (12), and the middle part of handle (12) is provided with latch hook (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200245997U CN201449919U (en) | 2009-05-07 | 2009-05-07 | Low-voltage electromagnetic disengaging knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200245997U CN201449919U (en) | 2009-05-07 | 2009-05-07 | Low-voltage electromagnetic disengaging knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449919U true CN201449919U (en) | 2010-05-05 |
Family
ID=42554642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200245997U Expired - Fee Related CN201449919U (en) | 2009-05-07 | 2009-05-07 | Low-voltage electromagnetic disengaging knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047663A (en) * | 2019-05-05 | 2019-07-23 | 杭州道盈信息科技有限公司 | A kind of electromagnetic switch |
-
2009
- 2009-05-07 CN CN2009200245997U patent/CN201449919U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047663A (en) * | 2019-05-05 | 2019-07-23 | 杭州道盈信息科技有限公司 | A kind of electromagnetic switch |
| CN110047663B (en) * | 2019-05-05 | 2020-06-23 | 江苏吉野电气有限公司 | Electromagnetic switch |
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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: 20100505 Termination date: 20100507 |