CN2300180Y - Vacuum load switch with isolation breaker - Google Patents
Vacuum load switch with isolation breaker Download PDFInfo
- Publication number
- CN2300180Y CN2300180Y CN 97236195 CN97236195U CN2300180Y CN 2300180 Y CN2300180 Y CN 2300180Y CN 97236195 CN97236195 CN 97236195 CN 97236195 U CN97236195 U CN 97236195U CN 2300180 Y CN2300180 Y CN 2300180Y
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- CN
- China
- Prior art keywords
- contact
- head
- vacuum
- push rod
- clutch cover
- 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 - Fee Related
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- 238000002955 isolation Methods 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000012212 insulator Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a vacuum load switch with isolation breakers, which is provided with an operating mechanism installed on a machine frame, wherein a bracket, a middle mechanism box and a lower movable frame are respectively fixed to three insulators on the machine frame, vacuum switches are installed on the middle mechanism box and the lower movable frame, the isolation breakers are installed on the bracket and the middle mechanism, a flexible connection device is respectively connected with middle contact seats in the isolation breakers and movable currentconducting rods in vacuum arc-extinguishing chambers in the vacuum switches, and the vacuum arc-extinguishing chambers are not acted by overvoltage and have high current breaking and closing capacity and long electrical life. The utility model has the advantages of low insulation level and price.
Description
The utility model proposes a kind of vacuum load switch with isolation fracture.
Existing on-load switch with isolation fracture adopts calm the anger principle or aerogenesis principle drop-out current usually, the ability of the drop-out current of this type load switch is little, life-span is short, adopt vacuum interrupter cut-off with the on-load switch of making current usually not with the isolation fracture of vacuum interrupter interlock, it is convenient inadequately to use.
The purpose of this utility model provides a kind ofly to be had with the isolation fracture of vacuum interrupter interlock, electric current cut-off and the pass is closed by vacuum extinction and is finished, only the electrify vacuum load switch of buffer action of isolation fracture.
Technical solution of the present utility model:
By operating mechanism, vacuum switch, isolation fracture, composition is flexible coupling, wherein operating mechanism 400, it is installed on the frame 500, be fixed with three insulators 610 on the frame 500,620,630, difference fixed support 710 on three insulators, it is intermediary agency's case 720, lower carriage 730, vacuum switch 100 is installed on intermediary agency's case 720 and the lower carriage 730, isolation fracture 300 is installed in support 710 and the intermediary agency 720, is flexible coupling 200 by the moving conductive rod 114 in the vacuum interrupter 110 in the 372 connection vacuum switches 100 of the middle contact base in the isolation fracture 300.
Advantage of the present utility model is, the disjunction of electric current and pass are closed by vacuum interrupter and are finished, thereby have very high electric current and cut-off with making capability and very long electric life, isolation fracture and only play buffer action, contact tube minute, only need less movement velocity in the making process, operating work is less.Vacuum interrupter is not subjected to superpotential effect, so the insulation level of vacuum interrupter is lower, price is more cheap.
Fig. 1 is structural representation of the present utility model (gate-dividing state);
Fig. 2 is the utility model making process schematic diagram;
Fig. 3 is the utility model "on" position schematic diagram;
Fig. 4 is the utility model separating brake process schematic diagram.
Above-mentioned accompanying drawing is the example structure schematic diagram.
Further specify technical solution of the present utility model below in conjunction with accompanying drawing:
With reference to Fig. 1, operating mechanism 400 is installed in frame 500, on frame 500, is fixed with three insulators 610,620 and 630, on insulator 610, fixing upper bracket 710, fixing intermediary agency's case 720 on the insulator 620 is being fixed lower carriage 730 on the insulator 630.Vacuum switch 100 is installed on intermediary agency's case 720 and the lower carriage 730, and isolation fracture 300 is installed on upper bracket 710 and the intermediary agency's case 720.
When shift fork 170 clockwise rotates, link arm 171 on the shift fork 170 promotes connecting lever 140 by connecting rod 150 and rotates counterclockwise, thereby tripping spring 160 is stretched, the moving electric pole 114 and the moving contact 113 of vacuum interrupter 110 are moved downward together, when the axis of link arm 171 with connecting rod 150 coincides, be link arm 171 when reaching the dead point with connecting rod 150, moving contact 113 contacts and obtains certain contact pressure with fixed contact 112.In this position, as long as shift fork 170 is not subjected to the effect of external force, vacuum switch 100 will be self-locking in "on" position always.
When shift fork 170 rotates counterclockwise under external force, make link arm 171 and connecting rod 150 break away from the dead point, connecting lever 140 clockwise rotates under the effect of tripping spring 160, drives moving conductive rod 114 and moves upward, and makes moving contact 113 leave fixed contact 112.
There is a pin 530 lower end of the driving head 352 of clutch cover 350, and an end of insulation push rod 520 links to each other with clutch cover 350 by pin 530.
200 be connected with being flexible coupling between the middle contact base 372 of isolation fracture 300 and the moving conductive rod 144 of vacuum interrupter 110.
One end of insulation push rod 520 links to each other with clutch cover 530, the other end is enclosed within on the square shaft 510 in the frame 500, square shaft 510 can pushed away by the push rod 410 of operating mechanism 400 and rotate, when square shaft 510 is promoted by push rod 410, insulation push rod 520 just is being with clutch cover 350 to move up and down, and realizes branch of the present utility model, closes action.
Be in the utility model of Fig. 1 gate-dividing state, when the push rod 410 of operating mechanism 400 moves downward, square shaft 510 rotates counterclockwise, insulation push rod 520 is being with clutch cover 350 to move upward by pin 530, because retaining 331 squeezes steel ball 360 in the groove 322 of contact tube 320, clutch cover 350 mechanically connects together with contact tube 320, so whole isolated cutter 310 also moved upward when clutch cover 350 moved upward, when the fingertip 381 of contact tube 320 fast contact upper contact heads 380, long-armed 173 of pin 530 contact shift forks 170, after this, the contact tube 320 contact fingertip 381 and stretching in the fingertip 381 that continues to move upward, non-magnetic shim 383 on the upper contact head 380 promotes push rod 330, make retaining 331 leave cross-drilled hole 353, steel ball 360 skids off from the groove 322 of contact tube 320, mechanical connection between contact tube 320 and the clutch cover 350 is removed, contact tube 320 stop motions, clutch cover 350 continues to move upward, meanwhile, pin 530 is constantly being dialled shift fork 170 and is being rotated (Fig. 2), the moving contact 113 of vacuum interrupter 110 moves closer to fixed contact 112, contact with fixed contact 112 with moving contact 113 after fingertip 381 contacts at contact tube 320, making current, at this moment the center line of the center line of the link arm 171 of shift fork 170 and connecting rod 150 is positioned on the straight line, the galianconism 172 of shift fork 170 has gone to the below of pin 530 simultaneously, and making process finishes (Fig. 3).
Be in the utility model of Fig. 3 "on" position, when the push rod 410 of operating mechanism 400 moves upward, square shaft 510 clockwise rotates, insulation push rod 520 drives clutch cover 350 and moves downward, because clutch cover 350 and contact tube 320 are in mechanical disengaged position, link arm 171 and connecting rod 150 are in the dead point, so contact tube 320 and shift fork 170 all kept quiet when clutch cover 350 moved downward, after pin 530 contacts the galianconism 172 of shift forks 170 and makes it to break away from the dead band, connecting lever 140 is clockwise rotated make moving contact 113 leave fixed contact 112, cut off electric current, tripping spring 160 also makes shift fork 170 rotate counterclockwise, shift fork 170 rotate counterclockwise the motion path that makes galianconism 172 leave pin 530, for road is got out of the way in the continuation campaign of clutch cover 350, also prepare for close a floodgate next time.Clutch cover 350 continues to move downward, the stop ring 321 of the clutch of clutch cover 350 351 a contact contact tube 320, after this clutch cover 350 just is being with contact tube 320 to move downward by stop ring 321, make contact tube 320 break away from fingertip 381, non-magnetic shim 383 is left in the top 334 of push rod 330, and under the effect of stage clip 340, push rod 330 moves upward with respect to contact tube 320, retaining 331 moves on to cross-drilled hole 353 steel ball 360 is pressed in the groove 322, prepares for close a floodgate next time.After this isolation knife 310 moves downward always, contact base 372 in the middle of entering fully up to the upper end of contact tube 320, and the separating brake process finishes (Fig. 1).
Claims (4)
1, a kind of vacuum load switch with isolation fracture, it is characterized in that by operating mechanism, vacuum switch, isolation fracture, composition is flexible coupling, wherein operating mechanism (400) is installed on the frame (500), be fixed with three insulators (610) on the frame (500), (620), (630), difference fixed support (710) on three insulators, intermediary agency's case (720), lower carriage (730), vacuum switch (100) is installed on intermediary agency's case (720) and the lower carriage (730), isolation fracture (300) is installed on support (710) and the intermediary agency's case (720), and be flexible coupling (200) are by the moving conductive rod (114) in the vacuum interrupter (110) in the connection vacuum switch of the middle contact base (372) in the isolation fracture (300) (100).
2, a kind of vacuum load switch according to claim 1 with isolation fracture, it is characterized in that vacuum switch (100) is by vacuum interrupter (110), pull bar (120), connecting lever (140), connecting rod (150), tripping spring (160), shift fork (170) is formed, wherein the static conductive rod (111) of vacuum interrupter (110) is fixed on down on the outlet board (750), following outlet board (750) is fixed on again on the lower carriage (730), the moving conductive rod (114) of vacuum interrupter (110) stretches in intermediary agency's case (720), moving conductive rod (114) links to each other with the one arm of connecting lever (140) by pull bar (120), the one arm in addition of connecting lever (140) links to each other with the link arm (171) of shift fork (170) by connecting rod (150), on the pin that connects connecting lever (140) and connecting rod (150) tripping spring (160) is housed also, the other end of tripping spring (160) is fixed on intermediary agency's case (720).
3, a kind of vacuum load switch according to claim 1 with isolation fracture, it is characterized in that isolation fracture (300) is by upper contact head (380), middle contact (370) and isolation knife (310) are formed, upper contact head (380) is by upper contact head seat (382), fingertip (381) and non-magnetic shim (383) are formed, wherein upper contact head (380) is fixed on the outlet board (740), last outlet board (740) is fixed on the upper bracket (710), middle contact (370) is made up of middle contact base (372) and fingertip (371), middle contact (370) is fixed on intermediary agency's case (720), upper contact head (380) and middle contact (370) coaxial arrangement, isolation knife (310) is by contact tube (320), clutch cover (350), push rod (330), stage clip (340) and steel ball (360) are formed, a stop ring (321) is established in the lower end of contact tube (320), one baffle ring (323) is arranged at top, open a groove (322) on the inwall of bottom near stop ring (321), clutch cover (350) is equipped with in the bottom of contact tube (320), the top of clutch cover (350) is clutch head (351), the bottom is driving head (352), the external diameter of clutch head (351) is identical with the internal diameter of contact tube (320), the external diameter of driving head (351) is identical with the internal diameter of stop ring (321), isolation knife (310) is installed in the hole of middle contact (370), fingertip (371) bridge joint is on contact tube (320) and middle contact (372), and fingertip (381) bridge joint is on upper contact head seat (382) and contact tube (320).
4, according to claim 1,3 described a kind of vacuum load switchs with isolation fracture, the mesopore (354) that it is characterized in that clutch cover (350) is to insert for push rod (330), its diameter is identical with the diameter of the top (334) of push rod (330), clutch head (351) is gone up at least two cross-drilled holes (353) is set, there is a pin (530) lower end of the driving head (352) of clutch cover (350), one end of insulation push rod (520) links to each other with clutch cover (350) by pin (530), a steel ball (360) is set in each cross-drilled hole (353), the diameter of steel ball (360) equals the pipe thickness of driving head (352) and the degree of depth sum of groove (322), push rod (330) is installed in the contact tube (320), the pin (333) on push rod (330) top passes baffle ring (323), the retaining head (331) of bottom stretches in the mesopore (354) of clutch cover (350), the upper end of push rod (330) is top (334), between top (334) and the baffle ring stage clip (340) is arranged, stage clip (340) abuts against the minor diameter part (332) of push rod (330) on the baffle ring (323), retaining head (331) just in time keeps off on cross-drilled hole (353), and the difference of the retaining head (331) of push rod (330) and the radius of minor diameter part (332) is slightly larger than the degree of depth of groove (322).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236195 CN2300180Y (en) | 1997-05-30 | 1997-05-30 | Vacuum load switch with isolation breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236195 CN2300180Y (en) | 1997-05-30 | 1997-05-30 | Vacuum load switch with isolation breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2300180Y true CN2300180Y (en) | 1998-12-09 |
Family
ID=33947124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97236195 Expired - Fee Related CN2300180Y (en) | 1997-05-30 | 1997-05-30 | Vacuum load switch with isolation breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2300180Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091444A1 (en) * | 2011-12-23 | 2013-06-27 | 珠海康晋电气有限公司 | Embedded pole capable of isolation and switch cabinet |
| CN109065406A (en) * | 2018-09-06 | 2018-12-21 | 天津合纵电力设备有限公司 | Vacuum arc-extinguishing chamber assembly with built-in isolation fracture and vacuum circuit breaker |
| CN110379665A (en) * | 2019-06-28 | 2019-10-25 | 江苏省如高高压电器有限公司 | A kind of novel isolation on-load switch |
-
1997
- 1997-05-30 CN CN 97236195 patent/CN2300180Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091444A1 (en) * | 2011-12-23 | 2013-06-27 | 珠海康晋电气有限公司 | Embedded pole capable of isolation and switch cabinet |
| CN109065406A (en) * | 2018-09-06 | 2018-12-21 | 天津合纵电力设备有限公司 | Vacuum arc-extinguishing chamber assembly with built-in isolation fracture and vacuum circuit breaker |
| CN110379665A (en) * | 2019-06-28 | 2019-10-25 | 江苏省如高高压电器有限公司 | A kind of novel isolation on-load switch |
| CN110379665B (en) * | 2019-06-28 | 2021-06-08 | 江苏省如高高压电器有限公司 | Novel isolation load switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: SENYUAN ELECTRIC CO., LTD. XI AN TO: LI TONG |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Li Tong Patentee before: Senyuan Electrical Co., Ltd., Xi'an |
|
| 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 |