CN107845538B - High-power air type double-fracture isolation load switch - Google Patents
High-power air type double-fracture isolation load switch Download PDFInfo
- Publication number
- CN107845538B CN107845538B CN201710959546.3A CN201710959546A CN107845538B CN 107845538 B CN107845538 B CN 107845538B CN 201710959546 A CN201710959546 A CN 201710959546A CN 107845538 B CN107845538 B CN 107845538B
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- China
- Prior art keywords
- sliding plate
- connecting rod
- closing
- spring support
- opening mechanism
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- 238000002955 isolation Methods 0.000 title claims description 5
- 238000009413 insulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/008—Pedestal mounted switch gear combinations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to a high-power air type double-break isolating load switch which comprises a frame, wherein two sides of the top of the frame are provided with two insulating sleeves, and an arc extinguish chamber is arranged in one insulating sleeve; the depth of the insulating sleeve with the arc extinguish chamber is greater than that of the insulating sleeve without the arc extinguish chamber; a conductive rod is respectively arranged under the two insulating sleeves, and the two conductive rods are connected through a connecting rod; the connecting rod is connected with the closing/opening mechanism, and can vertically move under the driving of the closing/opening mechanism. The invention has the advantages of compact structure and reduced occupied space.
Description
Technical Field
The invention relates to a switch device, in particular to a high-power air type double-break isolating load switch.
Background
In existing switchgear, the circuit breaker or load switch and the disconnector are separate and independent of each other. The structure is convenient to overhaul respectively, and meanwhile, modular production and assembly can be carried out on the two parts of parts.
Although the structure of the circuit breaker or the coincidence switch and the isolating switch which are independent from each other is well-established in the technology, the following problems still exist:
the circuit breaker or the load switch and the isolating switch are independent respectively, so that the space can be enlarged, and at the present day that the land resources are increasingly tense, users urgently need to improve the space utilization rate of the switch equipment, and the requirements of the users are gradually difficult to meet by the wider and higher switch equipment size in this respect.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-power air type double-fracture isolation load switch, so that the structure is more compact, and the occupied space is reduced.
The technical scheme adopted by the invention for solving the technical problems is as follows: the high-power air type double-fracture isolation load switch comprises a frame, wherein two sides of the top of the frame are provided with two insulating sleeves, and an arc extinguish chamber is arranged in one insulating sleeve; the depth of the insulating sleeve with the arc extinguish chamber is greater than that of the insulating sleeve without the arc extinguish chamber; a conductive rod is respectively arranged under the two insulating sleeves, and the two conductive rods are connected through a connecting rod; the connecting rod is connected with the closing/opening mechanism, and can vertically move under the driving of the closing/opening mechanism.
The closing/opening mechanism is arranged on the side surface of the frame.
The brake closing/opening mechanism comprises a crank arm, a spring bracket and a sliding plate; the bottom end of the spring support is connected with the sliding plate through a shaft, and a vertical track is arranged between the shaft and the sliding plate; the sliding plate is connected with the connecting rod through a cross beam; the top end of the spring support is connected with the crank arm, and an operation arm is installed on the inflection point of the crank arm.
Advantageous effects
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the invention integrates the load switch or the breaker with the isolating switch, so that the structure is more compact, the occupied space is reduced, meanwhile, one visible fracture of the original structure is increased to two visible fractures, and the isolating fracture bears the fracture insulation level by utilizing the double isolating fractures, thereby reducing the requirement on the insulation level between the fractures of the arc extinguish chamber.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1;
fig. 3 is a cross-sectional view taken along line C-C of fig. 1.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to a high-power air type double-break isolating load switch, which comprises a frame 1, wherein two sides of the top of the frame 1 are provided with two insulating sleeves 2, and an arc extinguish chamber 3 is arranged in one insulating sleeve 2; the depth of the insulating sleeve provided with the arc extinguish chamber 3 is greater than that of the insulating sleeve not provided with the arc extinguish chamber; a conductive rod 4 is respectively arranged under the two insulating sleeves 2, and the two conductive rods 4 are connected through a connecting rod 5; the connecting rod 5 is connected with the closing/opening mechanism, and the connecting rod 5 can vertically move under the driving of the closing/opening mechanism.
In the present embodiment, the closing/opening mechanism is provided on a side surface of the frame 1. The brake closing/opening mechanism comprises a crank arm 6, a spring bracket 7 and a sliding plate 8; the bottom end of the spring support 7 is connected with a sliding plate 8 through a shaft 9, and a vertical track 12 is arranged between the shaft 9 and the sliding plate 8; the sliding plate 8 is connected with the connecting rod 5 through a cross beam 10; the top end of the spring support 7 is connected with the crank arm 6, and an operation arm 11 is installed on the inflection point of the crank arm 6.
During closing, the rotating operation arm 11 enables the crank arm 6 to rotate clockwise around the inflection point, the spring support 7 is driven to pull up, the shaft 9 connected with the spring support 7 rises along the vertical rail 12 to drive the sliding plate 8 to slide upwards, and the sliding plate 8 drives the cross beam 10 to move upwards, so that the connecting rod 5 and the conducting rod 4 on the connecting rod 5 move upwards, and closing is achieved. Because the depth of the insulating sleeve with the arc extinguish chamber is greater than that of the insulating sleeve without the arc extinguish chamber, the fracture can be isolated firstly and then closed when the switch is switched on, the correctness of the operation sequence is ensured, and an additional interlocking device is not needed.
During the switching-off, the rotating operation arm 11 makes the connecting lever 6 rotate around the inflection point anticlockwise, the spring support 7 is driven to descend, the shaft 9 connected with the spring support 7 descends along the vertical track 12 to drive the sliding plate 8 to slide downwards, the sliding plate 8 drives the cross beam 10 to move downwards, and therefore the connecting rod 5 and the conducting rod 4 on the connecting rod 5 move downwards to achieve the switching-off. Because the depth of the insulating sleeve with the arc extinguish chamber is greater than that of the insulating sleeve without the arc extinguish chamber, the fracture of the arc extinguish chamber can be separated firstly and then isolated when the brake is switched off, the correctness of the operation sequence is ensured, and an additional interlocking device is not needed.
The invention integrates the load switch or the breaker with the isolating switch, so that the structure is more compact, the occupied space is reduced, meanwhile, one visible fracture of the original structure is increased to two visible fractures, and the isolating fracture bears the fracture insulation level by utilizing the double isolating fractures, thereby reducing the requirement on the insulation level between the fractures of the arc extinguish chamber.
Claims (2)
1. A high-power air type double-fracture isolation load switch comprises a frame (1) and is characterized in that two sides of the top of the frame (1) are provided with two insulating sleeves (2), wherein one insulating sleeve (2) is internally provided with an arc extinguishing chamber (3); the depth of the insulating sleeve provided with the arc extinguish chamber (3) is greater than that of the insulating sleeve not provided with the arc extinguish chamber; a conductive rod (4) is respectively arranged right below the two insulating sleeves (2), and the two conductive rods (4) are connected through a connecting rod (5); the connecting rod (5) is connected with the closing/opening mechanism, and the connecting rod (5) can vertically move under the driving of the closing/opening mechanism; the brake closing/opening mechanism comprises a crank arm (6), a spring support (7) and a sliding plate (8); the bottom end of the spring support (7) is connected with the sliding plate (8) through a shaft (9), and a vertical track (12) is arranged between the shaft (9) and the sliding plate (8); the sliding plate (8) is connected with the connecting rod (5) through a cross beam (10); the top end of the spring support (7) is connected with the crank arm (6), and an operation arm (11) is arranged on the inflection point of the crank arm (6); during closing, the operating arm (11) is rotated to enable the connecting lever (6) to rotate clockwise around an inflection point, the spring support (7) is driven to pull upwards, the shaft (9) connected with the spring support (7) rises along the vertical rail (12) to drive the sliding plate (8) to slide upwards, and the sliding plate (8) drives the cross beam (10) to move upwards, so that the connecting rod (5) and the conductive rod (4) move upwards to realize closing; during opening, the operating arm (11) is rotated to enable the crank arm (6) to rotate anticlockwise around the inflection point, the spring support (7) is driven to descend, the shaft (9) connected with the spring support (7) descends along the vertical rail (12) to drive the sliding plate (8) to slide downwards, and the sliding plate (8) drives the cross beam (10) to move downwards, so that the connecting rod (5) and the conductive rod (4) move downwards to realize opening.
2. A high power air-type double break isolating load switch according to claim 1, characterized in that the closing/opening mechanism is arranged at the side of the frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710959546.3A CN107845538B (en) | 2017-10-16 | 2017-10-16 | High-power air type double-fracture isolation load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710959546.3A CN107845538B (en) | 2017-10-16 | 2017-10-16 | High-power air type double-fracture isolation load switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107845538A CN107845538A (en) | 2018-03-27 |
| CN107845538B true CN107845538B (en) | 2020-04-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710959546.3A Active CN107845538B (en) | 2017-10-16 | 2017-10-16 | High-power air type double-fracture isolation load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107845538B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0309384A1 (en) * | 1987-09-23 | 1989-03-29 | Siemens Aktiengesellschaft | Multi-pole low-voltage switching device with an insulating case divided into parallel chambers |
| CN102290731A (en) * | 2011-04-25 | 2011-12-21 | 张增起 | Three-phase common-proper compact type solid insulation high voltage alternating current vacuum switching cabinet |
| CN203103824U (en) * | 2012-12-31 | 2013-07-31 | 西渥电气（福州）有限公司 | An epoxy resin solid insulation vacuum switch module |
| CN103489696A (en) * | 2013-08-30 | 2014-01-01 | 宁波鑫鑫鑫寅电气有限公司 | 10kV box type double-break vacuum circuit beaker of built-in disconnector structure |
| CN207381305U (en) * | 2017-10-16 | 2018-05-18 | 宁波鑫鑫鑫寅电气有限公司 | A kind of high power air formula double-fracture isolates on-load switch |
-
2017
- 2017-10-16 CN CN201710959546.3A patent/CN107845538B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0309384A1 (en) * | 1987-09-23 | 1989-03-29 | Siemens Aktiengesellschaft | Multi-pole low-voltage switching device with an insulating case divided into parallel chambers |
| CN102290731A (en) * | 2011-04-25 | 2011-12-21 | 张增起 | Three-phase common-proper compact type solid insulation high voltage alternating current vacuum switching cabinet |
| CN203103824U (en) * | 2012-12-31 | 2013-07-31 | 西渥电气（福州）有限公司 | An epoxy resin solid insulation vacuum switch module |
| CN103489696A (en) * | 2013-08-30 | 2014-01-01 | 宁波鑫鑫鑫寅电气有限公司 | 10kV box type double-break vacuum circuit beaker of built-in disconnector structure |
| CN207381305U (en) * | 2017-10-16 | 2018-05-18 | 宁波鑫鑫鑫寅电气有限公司 | A kind of high power air formula double-fracture isolates on-load switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107845538A (en) | 2018-03-27 |
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