CN2052945U - High reliable vacuum switch - Google Patents
High reliable vacuum switch Download PDFInfo
- Publication number
- CN2052945U CN2052945U CN 89209235 CN89209235U CN2052945U CN 2052945 U CN2052945 U CN 2052945U CN 89209235 CN89209235 CN 89209235 CN 89209235 U CN89209235 U CN 89209235U CN 2052945 U CN2052945 U CN 2052945U
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- CN
- China
- Prior art keywords
- spring
- support
- iron core
- universal joint
- guide
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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.)
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Disclosed is a vacuum switch having the function of protecting a circuit against overload and short-circuit for a frequently on-off high voltage motor group, a pertinency high voltage capacitor group, and a 10KV-35KV power distribution system. The utility model which comprises an electric magnet operating mechanism and a switch transmission mechanism solves the problems that the prior art is of multiple component and is of complex structure, mechanical life is less than 20000 times, and resisting combination and resisting separation are easily generated in the prior art at the time of using the prior art. The utility model is provided with an electromagnetic operating mechanism, three transmission mechanisms for a free joint, and a buffer mechanism, and therefore, the utility model has the advantages of reducing the weak links of the mechanisms, extending the mechanical life to more than 500000 times, and shortening making time.
Description
The utility model belongs to appliance switch, particularly the high-voltage electric unit of frequent break-make, suit high-voltage capacitor group and 10-35KV distribution system are finished the effect of overload short-circuit protection to circuit vacuum switch.
Existing vacuum switch, its operating mechanism have two kinds, a kind ofly are made up of quadric chain and electromagnet, another kind ofly are made up of spring energy-storage and quadric chain.All be to be used for realizing trip free by four connecting rods, the parts of its composition are many, complex structure, the securing member quantity that is adopted is many, thereby more weak link is arranged, making its mechanical endurance is below 20,000 times, because mechanical endurance, number of times was low, be easy to generate during use and refuse to close the phenomenon of refusing branch, thereby cause a serious accident.
The purpose of this utility model provides a kind of simple in structure, the vacuum switch of long service life.
The utility model is achieved in that by ball snap close, ball snap close groove spare, and the electromagnetic operating mechanism of forming by actuating strut, lever, dropout semiaxis, spring and torsion spring and transmit switch motion by 3 universal joints, fixed mounts, be equipped with buffer gear on the top of frame.
Description of drawings: Fig. 1 is a structure chart of the present utility model, control line map when Fig. 2 uses for the utility model.
Describe and provide embodiment in detail below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, the utlity model has a support 78, the support 75 on the support 78 is connected with ball snap close groove spare 72 by screw.Cooperate with the left part external diameter of ball snap close groove spare 72 to be equipped with moving iron core 71, moving iron core 71 can be in the external diameter move left and right of ball snap close groove spare 72.Be equipped with the iron core system that static iron core 42 and coil 74 are formed in the left side of moving iron core 71.Moving iron core 71 is slidingly matched with the internal diameter of iron core system.Cooperate with ball snap close groove spare 72 internal diameters to be equipped with guide 67, cooperate with the left part internal diameter of guide 67 to be equipped with actuating strut 68.In the groove of guide 67 and between the external diameter at the thin position of the right-hand member of actuating strut 68, be equipped with ball snap close 70.On the external diameter of actuating strut 68, in the central slot of the left side of guide 67, static iron core 42, be equipped with reaction spring 69.Support 76 usefulness screws on the support 78 are by pressing plate 38, and bolster 39 is pushed down the bottom of static iron core 42.Between support 76 and moving iron core 71, be equipped with spring 40 by supporter 41.On support 76, be fixed with baffle plate 43 and connect with static iron core 42 by screw.Be equipped with spring 44 between the centre bore of baffle plate 43 and actuating strut 68 left parts, the left end of spring 44 is fixed on the baffle plate 43.Be equipped with bearing pedestal 46, bearing pedestal 79 on the top of static iron core 42.Be equipped with lever 45 on the bearing pedestal 46, the lower end of lever 45 is inserted in the groove of actuating strut 68.Be equipped with dropout semiaxis 48 on the bearing pedestal 79, dropout semiaxis 48 connects torsion spring 73, and the other end of torsion spring 73 connects shunt opening electromagnet 49.The upper end of lever 45 contacts with dropout semiaxis 48.
Transmit the switch motion part, by the left part internal thread connection universal joint 35 of guide 67.Cooperate with the sphere of universal joint 35 right-hand members by fixture 77 and connect with main shaft 31.Main shaft 31 is connected with fixture 74, and fixture 74 matches with the sphere of universal joint 30.Be equipped with main reaction spring 33 between the frame 80 on the right-hand member of fixture 74 and the support 78.Universal joint 30 connects with the supporter 26 on top by screw thread and is fixing by axle sleeve 29.Supporter 26 has horizontal through hole, is placed with bearing pin 27 in horizontal through hole, is fixed on the spring strut 25 that cooperates with supporter 26 by card pad 28.Be equipped with spring 24 in the spring strut 25, connect universal joint 22 by spring 24, spring bearer plate 23.Be fixed with insulating support 7 on the support 78, gusset piece 2 be fixed on the support 7 by fastening bolt 3, axle sleeve 5, bolster 1.Gusset piece 2 connects with vacuum switch 6.The lower end of vacuum switch 6 is equipped with flexible connection 14, insulator 21, guide 17 and gusset piece 50.
The identical universal joint of a plurality of and universal joint 35 can be installed on main shaft 31, and with joining electromagnetic operating mechanism of universal joint and switch drive.
When pressing button A, coil 74 is the ZN energising among Fig. 2, and iron core 71 is moved in static iron core 42 adhesives, drives guide 67, universal joint 35 simultaneously to left movement.Guide 67 drives actuating strut 68 motions, and when ball snap close 70 entered the reducing position of actuating strut 68, spring 44 was compressed.When ball snap close 70 entered in the groove of ball snap close groove spare 72, actuating strut 68 had been moved to the left about 3mm.At this moment the right side of the concave shaped portion of actuating strut 68 contacts with the right side, lower end of lever 45, and the upper end of lever 45 and dropout semiaxis fasten, and actuating strut 68 stops to move.Universal joint 35 is when left movement, driving fixture 77 clockwise rotates main shaft 31, compress springs 33 and drive universal joint 30, supporter 26, spring strut 25 and universal joint 22 motions by fixture 74, make the dynamic and static contact adhesives in the vacuum switch tube 6 realize closing a floodgate.Behind the combined floodgate, the normally closed auxiliary contact of the auxiliary relay DZ in the circuit is opened, coil 74 outages, and making process is finished.
In making process, bolster 1, fastening bolt 3 and 5 cushioning effects of axle sleeve.
When fault current signal or command signal enter shunt opening electromagnet 49,49 adhesives of shunt opening electromagnet, dropout semiaxis 48 rotates counterclockwise, and lever 45 is threaded off with dropout semiaxis 48, and actuating strut 68 is moved to the left, and lever 45 clockwise rotates.When the thin portion of right-hand member of actuating strut 68 contacts with ball snap close 70, ball snap close 70 withdraws from from the groove of ball snap close groove spare 72, at this moment electromagnetic operating mechanism and transmission mechanism action under the effect of reaction spring 69 and main reaction spring 33, is threaded off and separating brake respectively.After actuating signal in the shunt opening electromagnet 49 disappeared, dropout semiaxis 48 returned to reset condition under the effect of torsion spring 73.Lever 45 rotates counterclockwise under the effect of spring 44 simultaneously, till fastening with the dropout semiaxis.At this moment the left side of actuating strut 68 matrixs part contacts with the left side, lower end of lever 45, and is vacating about 3mm between the right side.Electromagnetic operating mechanism just performs the preceding preparation of closing a floodgate for vacuum switch like this.
If in making process, shunt opening electromagnet 49 obtains extraneous signal, makes it action.Vacuum switch can not close a floodgate, and just the utlity model has the trip free performance.
The utility model has the advantage of, owing to adopted the simple electromagnetic operating mechanism of structure, the transmission mechanism that 3 universal joints are arranged and buffer gear, thereby the weak link of mechanism is reduced, mechanical life can be up to 500,000 times, and shortened closing time.
Claims (2)
1, a kind of high-voltage electric unit that relates to frequent break-make, suit high-voltage capacitor group and 10-35KV distribution system are finished the effect of overload short-circuit protection to circuit vacuum switch, comprise electromagnetic operating mechanism, action transmission mechanism, it is characterized in that the utlity model has a support 78, the support 75 on the support 78 is connected with ball snap close groove spare 72 by screw; Cooperate with the left part external diameter of ball snap close groove spare 72 to be equipped with moving iron core 71, be equipped with the iron core system that static iron core 42 and coil 74 are formed in the left side of moving iron core 71; Cooperate with ball snap close groove spare 72 internal diameters to be equipped with guide 67, cooperate with the left part internal diameter of guide 67 to be equipped with actuating strut 68; In the groove of guide 67 and between the external diameter at the thin position of the right-hand member of actuating strut 68, be equipped with ball snap close 70; On the external diameter of actuating strut 68, in the central slot of the left side of guide 67, static iron core 42, be equipped with reaction spring 69; Support 76 usefulness screws on the support 78 are by pressing plate 38, and bolster 39 is pushed down the bottom of static iron core 42; Between support 76 and moving iron core 71, be equipped with spring 40 by supporter 41; On support 76, be fixed with baffle plate 43 and connect with static iron core 42 by screw; Be equipped with spring 44 between the centre bore of baffle plate 43 and actuating strut 68 left parts, the left end of spring 44 is fixed on the baffle plate 43; Be equipped with bearing pedestal 46, bearing pedestal 79 on the top of static iron core 42; Be equipped with lever 45 on the bearing pedestal 46, the lower end of lever 45 is inserted in the groove of actuating strut 68; Be equipped with dropout semiaxis 48 on the bearing pedestal 79, dropout semiaxis 48 connects torsion spring 73, and the other end of torsion spring 73 connects shunt opening electromagnet 49; The upper end of lever 45 contacts with dropout semiaxis 48; Left part internal thread by guide 67 connects universal joint 35; Cooperate with the sphere of universal joint 35 right-hand members by fixture 77 and connect with main shaft 31; Main shaft 31 is connected with fixture 74, and fixture 74 matches with the sphere of universal joint 30; Be equipped with main reaction spring 33 between the frame 80 on the right-hand member of fixture 74 and the support 78; Universal joint 30 connects with the supporter 26 on top by screw thread and is fixing by axle sleeve 29; Supporter 26 has horizontal through hole, is placed with bearing pin 27 in horizontal through hole, is fixed on the spring strut 25 that cooperates with supporter 26 by card pad 28; Be equipped with spring 24 in the spring strut 25, connect universal joint 22 by spring 24, spring bearer plate 23; Be fixed with insulating support 7 on the support 78, gusset piece 2 be fixed on the support 7 by fastening bolt 3, axle sleeve 5, bolster 1; Gusset piece 2 connects with vacuum switch 6.
2, as the said vacuum switch of claim 1, it is characterized in that on main shaft 31, can installing the identical universal joint of a plurality of and universal joint 35, and with joining electromagnetic operating mechanism of universal joint and switch drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209235 CN2052945U (en) | 1989-06-28 | 1989-06-28 | High reliable vacuum switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209235 CN2052945U (en) | 1989-06-28 | 1989-06-28 | High reliable vacuum switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2052945U true CN2052945U (en) | 1990-02-14 |
Family
ID=4865789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89209235 Withdrawn CN2052945U (en) | 1989-06-28 | 1989-06-28 | High reliable vacuum switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2052945U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290297A (en) * | 2011-07-28 | 2011-12-21 | 西安交通大学 | Quick release mechanism capable of preventing impact and vibration for direct current breaker |
| CN101826413B (en) * | 2010-05-14 | 2012-12-12 | 无锡市凯驰电气有限公司 | High-pressure vacuum contactor |
| CN105706205A (en) * | 2013-10-29 | 2016-06-22 | 西门子公司 | Electrical switch |
-
1989
- 1989-06-28 CN CN 89209235 patent/CN2052945U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826413B (en) * | 2010-05-14 | 2012-12-12 | 无锡市凯驰电气有限公司 | High-pressure vacuum contactor |
| CN102290297A (en) * | 2011-07-28 | 2011-12-21 | 西安交通大学 | Quick release mechanism capable of preventing impact and vibration for direct current breaker |
| CN102290297B (en) * | 2011-07-28 | 2013-12-11 | 西安交通大学 | Quick release mechanism capable of preventing impact and vibration for direct current breaker |
| CN105706205A (en) * | 2013-10-29 | 2016-06-22 | 西门子公司 | Electrical switch |
| US9659729B2 (en) | 2013-10-29 | 2017-05-23 | Siemens Aktiengesellschaft | Electrical switch |
| CN105706205B (en) * | 2013-10-29 | 2018-08-31 | 西门子公司 | Electric switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |