CN102136388B - High-voltage grounding switch - Google Patents
High-voltage grounding switch Download PDFInfo
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- CN102136388B CN102136388B CN2011100576205A CN201110057620A CN102136388B CN 102136388 B CN102136388 B CN 102136388B CN 2011100576205 A CN2011100576205 A CN 2011100576205A CN 201110057620 A CN201110057620 A CN 201110057620A CN 102136388 B CN102136388 B CN 102136388B
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- housing
- high voltage
- insulator
- ground switch
- voltage ground
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Abstract
The invention relates to a high-voltage grounding switch, which comprises a shell, moving contacts, and electric connection sleeves which pass through the lateral surface of the shell, wherein the moving contacts are respectively inserted into the corresponding electric connection sleeves; one end, which extends into the shell, of each electric connection sleeve is in conductive connection with aconductive connection plate respectively; one end, which is far away from the electric connection sleeve, of the conductive connection plate is connected on a corresponding conductive connection block; and conductive connection blocks are respectively arranged in through holes of insulators of which the centers are provided with the through holes; and the insulators are arranged on the shell. In the high-voltage grounding switch, the electric connection relation is changed by the three insulators without central conductors, so the problem that products cannot run normally due to air leakage caused by easy cracking of the insulators is solved completely.
Description
Technical field
The present invention relates to the high-voltage electrical apparatus field, particularly relate to a kind of high voltage ground switch.
Background technology
Earthed switch on the three-phase combined type gas insulated metal sealing switch equipment product in the electric power system is mainly used in the ground connection place of major loop.High voltage ground switch described in the prior art comprises a housing, be arranged on the oval insulator of embedded three center conductors on the housing side, moving contact and drive system, this drive system comprises connecting plate, the interior connecting lever that is connected by bearing with connecting plate and be connected in earthed switch axle on the connecting lever, described moving contact is located on the corresponding center conductor on the described oval insulator, the end that described moving contact stretches in the housing all is connected on the same described connecting plate, the other end of described moving contact is provided with a plum blossom fingertip, be used for be connected major loop on fixed contact contact.By rotating the earthed switch axle, the control moving contact moves along axis along this moving contact, realizes disconnection or closure with corresponding fixed contact, thus the ground connection of realization major loop or earth-free.
Because it is bigger with the coefficient of expansion difference of the insulating resin that constitutes insulator to constitute the metal of center conductor, add that three center conductors are embedded in the insulator, extruding between center conductor and the insulator and contraction, easily cause The Ageing of Insulators cracking gas leakage, cause the insulator that this kind contained three center conductors all to propose very high requirement from project organization, processing technology to the assembling use; Earthed switch is under described conducting system connected mode in addition, the folding stress impact that insulator is subjected in the work, easily make the gas leakage of insulator cracking, when so use in the power station out of doors, along with the replacement in season, the variation of temperature, and the stress impact in the work, insulator is easy to crack, causes product gas leakage normally to move.
Summary of the invention
The object of the present invention is to provide a kind of high voltage ground switch, to solve the insulator problem that causes product gas leakage normally to move easy to crack in the prior art.
In order to address the above problem, technical scheme of the present invention is: a kind of high voltage ground switch, comprise housing and moving contact, described high voltage ground switch also comprises the electric connecting sleeve that is located on the housing side, described moving contact inserting respectively is arranged in the described corresponding electric connecting sleeve, described electric connecting sleeve stretches into a end in the housing and conducts electricity respectively and connect a conductive connection plates, this conductive connection plates is connected on the corresponding conduction contiguous block away from an end of conduction adapter sleeve, the described conduction contiguous block center of being separately positioned on has in the described through hole of insulator of a through hole, and affiliated insulator is arranged on the housing.
Described insulator is arranged on case top.
Described conductive connection plates is L shaped.
The end that described moving contact stretches out housing is provided with a spring touch finger.
Described conduction contiguous block top is a limiting block edge, and the bottom is passed the through hole of corresponding insulator and housing upper surface and stretched into enclosure interior.
Between the perforating of described this electric connecting sleeve and housing, be provided with for the insulating case of realizing the insulation of electric connecting sleeve and housing.
Described conduction contiguous block is the multidiameter shape, is made up of an enlarged diameter section and a reduced diameter section, and this enlarged diameter section namely is described limiting block edge, and the internal diameter of through hole equates on the diameter of this reduced diameter section and the insulator 1.
The present invention adopt three independently the center have the insulator of through hole, the conduction contiguous block is set in the insulator through hole, compare with the insulator structure that includes three center conductors, though the present invention's conduction contiguous block and the insulator coefficient of expansion are still different, but owing to be not cast in together, mutual stress effect reduces, simultaneously owing to have only a conduction contiguous block in the insulator, do not exist adjacent center conductor in the prior art simultaneously to the phenomenon of the common stress effect of the part of this insulator between this adjacent conductor, the present invention also changes the path, galvanic circle, earthed switch insulator does not in the course of the work stress, insulator only plays the effect that insulation is isolated with housing, eliminate the influence of stress to insulator, thoroughly solved the insulator problem that causes product gas leakage normally to move easy to crack in the prior art.
This structure has also adopted spring touch finger to electrically contact mode as sliding contact novel to replace former plum blossom fingertip, thereby can reduce cost, conveniently installs and enhance productivity.
Description of drawings
Fig. 1 is the sectional front view of the embodiment of the invention;
Fig. 2 be among Fig. 1 along A-A to cutaway view;
Fig. 3 be among Fig. 2 along B-B to cutaway view.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
As Fig. 1,2, shown in 3, a kind of high voltage ground switch, comprise housing 10 and moving contact 7,9, this high voltage ground switch also comprises the electric connecting sleeve 6 that is located on housing 10 sides, 8, described moving contact 7,9 respectively inserting be arranged on described corresponding electric connecting sleeve 6, in 8, the end that described moving contact stretches out housing is provided with a spring touch finger, at described this electric connecting sleeve 6,8 and the perforating of housing between be provided with for realizing electric connecting sleeve 6,8 with the insulating case of housing 10 insulation, described electric connecting sleeve 6,8 stretch into ends in the housing 10 conducts electricity respectively and connects a conductive connection plates 5, described conductive connection plates 5 is L shaped, this conductive connection plates 5 is away from conduction adapter sleeve 6, an end of 8 is connected on the corresponding conduction contiguous block 2, described conduction contiguous block 2 centers of being separately positioned on have in the described through hole of insulator 1 of a through hole, affiliated insulator 1 is arranged on the top of housing 10, described conduction contiguous block 5 tops are a limiting block edge, and the bottom is passed the through hole at corresponding insulator 1 and housing 10 tops and stretched into enclosure interior.Described conduction contiguous block is the multidiameter shape, is made up of an enlarged diameter section and a reduced diameter section, and this enlarged diameter section namely is described limiting block edge, and the internal diameter of through hole equates on the diameter of this reduced diameter section and the insulator 1.
The end that described each moving contact 7,9 stretches in the housing 10 all is connected on the same connecting plate 11, between described housing 10 inner every adjacent described moving contacts 7,9, be provided with guide post 12 along described moving contact 7,9 axial directions, described connecting plate 11 is set on the described guide post 12.On the connecting lever 4, described interior connecting lever 4 was connected on the earthed switch axle 3 in described connecting plate 11 was connected by bearing.
The present invention in use, connecting lever 4 rotated in described earthed switch axle 3 drove, and drove connecting plate 11 along guide post 12 moving linearlies, realized branch, the closing operation of high voltage ground switch.
Claims (7)
1. high voltage ground switch, comprise housing and moving contact, it is characterized in that: described high voltage ground switch also comprises the electric connecting sleeve that is located on the housing side, described moving contact inserting respectively is arranged in the described corresponding electric connecting sleeve, described electric connecting sleeve stretches into a end in the housing and conducts electricity respectively and connect a conductive connection plates, this conductive connection plates is connected on the corresponding conduction contiguous block away from an end of electric connecting sleeve, the described conduction contiguous block center of being separately positioned on has in the described through hole of insulator of a through hole, and affiliated insulator is arranged on the housing.
2. a kind of high voltage ground switch according to claim 1, it is characterized in that: described insulator is arranged on case top.
3. a kind of high voltage ground switch according to claim 1, it is characterized in that: described conductive connection plates is L shaped.
4. a kind of high voltage ground switch according to claim 1, it is characterized in that: the end that described moving contact stretches out housing is provided with a spring touch finger.
5. a kind of high voltage ground switch according to claim 1, it is characterized in that: described conduction contiguous block top is a limiting block edge, and the bottom is passed the through hole of corresponding insulator and housing upper surface and stretched into enclosure interior.
6. a kind of high voltage ground switch according to claim 1 is characterized in that: be provided with between the perforating of described this electric connecting sleeve and housing for the insulating case of realizing the insulation of electric connecting sleeve and housing.
7. a kind of high voltage ground switch according to claim 5, it is characterized in that: described conduction contiguous block is the multidiameter shape, be made up of an enlarged diameter section and a reduced diameter section, this enlarged diameter section namely is described limiting block edge, and the internal diameter of through hole equates on the diameter of this reduced diameter section and the insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100576205A CN102136388B (en) | 2011-03-10 | 2011-03-10 | High-voltage grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100576205A CN102136388B (en) | 2011-03-10 | 2011-03-10 | High-voltage grounding switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102136388A CN102136388A (en) | 2011-07-27 |
| CN102136388B true CN102136388B (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100576205A Active CN102136388B (en) | 2011-03-10 | 2011-03-10 | High-voltage grounding switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN102136388B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134542A (en) * | 1989-07-05 | 1992-07-28 | Hitachi, Ltd. | Three-phase package-type gas-insulated switch gear having isolators being aligned in a first plane and earthing switches disposed laterally side by side on a second plane |
| JP2002042615A (en) * | 2000-07-26 | 2002-02-08 | Toshiba Corp | Grounding switch |
| CN2684424Y (en) * | 2004-01-18 | 2005-03-09 | 董万峰 | Box type gas insulated metal sealing switchgear |
| CN201590371U (en) * | 2009-12-23 | 2010-09-22 | 上海思源高压开关有限公司 | Quick ground switch device |
| CN202003891U (en) * | 2011-03-10 | 2011-10-05 | 平高集团有限公司 | High voltage grounding switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02170321A (en) * | 1988-12-23 | 1990-07-02 | Toshiba Corp | Three-phase integral type gas insulation/earthing switch |
-
2011
- 2011-03-10 CN CN2011100576205A patent/CN102136388B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134542A (en) * | 1989-07-05 | 1992-07-28 | Hitachi, Ltd. | Three-phase package-type gas-insulated switch gear having isolators being aligned in a first plane and earthing switches disposed laterally side by side on a second plane |
| JP2002042615A (en) * | 2000-07-26 | 2002-02-08 | Toshiba Corp | Grounding switch |
| CN2684424Y (en) * | 2004-01-18 | 2005-03-09 | 董万峰 | Box type gas insulated metal sealing switchgear |
| CN201590371U (en) * | 2009-12-23 | 2010-09-22 | 上海思源高压开关有限公司 | Quick ground switch device |
| CN202003891U (en) * | 2011-03-10 | 2011-10-05 | 平高集团有限公司 | High voltage grounding switch |
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| Publication number | Publication date |
|---|---|
| CN102136388A (en) | 2011-07-27 |
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