CN201374504Y - Contact box for switch cabinet - Google Patents
Contact box for switch cabinet Download PDFInfo
- Publication number
- CN201374504Y CN201374504Y CN200920113371U CN200920113371U CN201374504Y CN 201374504 Y CN201374504 Y CN 201374504Y CN 200920113371 U CN200920113371 U CN 200920113371U CN 200920113371 U CN200920113371 U CN 200920113371U CN 201374504 Y CN201374504 Y CN 201374504Y
- Authority
- CN
- China
- Prior art keywords
- contact box
- barrel
- groove
- tubular insulator
- contact
- 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 - Lifetime
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Abstract
The utility model relates to a contact box for a switch cabinet, which comprises a barrel-shaped insulation body with an opened end and a closed end, a base connecting port is arranged at the lower part of the barrel-shaped insulation body, a through groove used for accommodating a bus bar is radially arranged on the annular wall of the upper part of the barrel-shaped insulation body, the through groove is communicated with an inner cavity, and a fixed contact mounting insert is arranged at the top of the inner cavity. The contact box is characterized in that a layer of silastic ring is arranged on the base connecting port; a nonmagnetic metal barrel-shaped shielding layer is arranged on the inner wall of the inner cavity of the barrel-shaped insulation body below the through groove, and the nonmagnetic metal barrel-shaped shielding layer and the fixed contact mounting insert are mutually connected by leads. The contact box eliminates the phenomenon that continuous electric corona can be generated as an air gap exists between a fixed contact and the inner wall of the contact box to cause discharge easily, increases the curvature radius, enables the electric field to be distributed along the shielding layer and is convenient for ensuring the electric field to be uniform; in addition, after the silastic ring is additionally arranged, an air gap between the contact box and a connecting base of the contact box is eliminated conveniently, thereby the air-gap discharge phenomenon is eliminated.
Description
[technical field]
The utility model belongs to a kind of and the matching used annex of power equipment, especially belongs to a kind of contact box that uses with AMS-24 switch cubicle coupling.
[background technology]
The existing contact box that uses with AMS-24 switch cubicle coupling, its structure comprise a tubular insulator by moulding of epoxy compound and end opening other end sealing, be provided with fixed contact at the top of insulator inwall inserts is installed, and its inside and outside wall is provided with the shirt rim.Have a groove on the ring wall on insulator top, this groove is used to admit busbar, make busbar radially stretch into the insulator inner chamber by groove after, be linked together through inserts and fixed contact are installed.There is following problems in actual applications in the contact box of this structure: electric field is inhomogeneous, between high voltage bus and the tubular insulator inwall because of there being the air gap, easily cause discharge and produce lasting corona, contact box is worked under this environment, can cause insulation property to descend rapidly even punch-through takes place, and cause electric power accident.
[summary of the invention]
For overcoming the problems referred to above that prior art exists, the utility model aims to provide the novel contact box for switch cabinet of a kind of structure, this contact box is owing to be difficult for to produce corona phenomenon in the switch cubicle running, thus help guaranteeing contact box insulation property, avoid punch-through and prevent the generation of electric power accident.
The technical scheme that addresses the above problem is as follows: this contact box for switch cabinet comprises the tubular insulator of end opening other end sealing, the bottom of tubular insulator is the base connecting port, radially have a groove that is used to admit busbar on the top ring wall of tubular insulator, groove communicates with the inner chamber of tubular insulator, the top of described inner chamber is provided with fixed contact inserts is installed, and it is characterized in that: be provided with one deck silicon rubber loop on described base connecting port; Be provided with a nonmagnetic metal cylinder screen on the tubular insulator inner chamber ring wall below the described groove, nonmagnetic metal cylinder screen and fixed contact are installed inserts and are interconnected through lead.
Above-mentioned nonmagnetic metal cylinder screen can be an oven wire mesh blanket, also can be the metal lamella.
Above-mentioned oven wire mesh blanket or metal lamella and tubular insulator are whole epoxy pressure gel molded part.
Beneficial effect: compared with prior art, on the inwall of contact box, set up one deck nonmagnetic metal cylinder screen, and making itself and fixed contact that inserts is installed links into an integrated entity, eliminated in the prior art since between high voltage bus and contact box inwall because of existing the air gap easily to produce the phenomenon of lasting corona, increased radius of curvature, electric field energy is distributed along screen, help uniform electric field.In addition, after one deck silicon rubber loop is set up in the periphery of base connecting port, help eliminating the air gap between contact box and the normally used plastics connection seat, and avoid continuing to produce the phenomenon of corona.Though the utility model architecture advances is simple, but brought into play good effect in practice really, the result shows after tested: proof voltage has been brought up to 79KV from the 68KV of national standard, performance is more superior, eliminated the gap discharge phenomenon, partial discharge quantity is less than 3PC, well below national standard 10PC.
[description of drawings]
Fig. 1 is vertical sectional structure schematic diagram of an embodiment of the utility model.
Among the figure: silicon rubber loop 1, tubular insulator 2, outer skirt 3, inner skirt 4, busbar line outlet 5, groove 51, fixed contact is installed inserts 6, round metal tubular screen 7.
[embodiment]
Referring to Fig. 1.By the tubular insulator 2 of epoxy pressure gel moulding, be respectively equipped with inner skirt 4 and outer skirt 3 on the internal and external walls.Silicon rubber loop 1 is arranged on the base connecting port periphery of tubular insulator 2 bottoms, is connected with the plastics connection seat when base connecting port is used to install.Metallic cylinder screen 7 can be an oven wire mesh blanket, also can be the metal lamella, and ring is located on the inwall of busbar line outlet 5 one sides, and when specifically making, oven wire mesh blanket or metal lamella and tubular insulator are the integral cast part.Metallic cylinder screen 7 adopts aluminium, copper or the like non magnetic magnetic material to make, and it is installed between the inserts 6 with fixed contact and is connected with wire connecting line 8.
Claims (3)
1, a kind of contact box for switch cabinet, the tubular insulator (2) that comprises end opening other end sealing, the bottom of tubular insulator (2) is the base connecting port, radially have a groove (51) that is used to admit busbar on the top ring wall of tubular insulator (2), groove (51) communicates with the inner chamber of tubular insulator (2), the top of described inner chamber is provided with fixed contact inserts (6) is installed, and it is characterized in that: be provided with one deck silicon rubber loop (1) on described base connecting port; Be provided with a nonmagnetic metal cylinder screen (7) on the tubular insulator inner chamber ring wall of described groove (51) below, nonmagnetic metal cylinder screen (7) is installed inserts (6) with fixed contact and is interconnected through lead.
2, a kind of contact box for switch cabinet as claimed in claim 1 is characterized in that: described nonmagnetic metal cylinder screen (7) is oven wire mesh blanket or metal lamella.
3, a kind of contact box for switch cabinet as claimed in claim 1 is characterized in that: described oven wire mesh blanket or metal lamella and tubular insulator (2) are whole epoxy pressure gel molded part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920113371U CN201374504Y (en) | 2009-01-20 | 2009-01-20 | Contact box for switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920113371U CN201374504Y (en) | 2009-01-20 | 2009-01-20 | Contact box for switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201374504Y true CN201374504Y (en) | 2009-12-30 |
Family
ID=41500585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920113371U Expired - Lifetime CN201374504Y (en) | 2009-01-20 | 2009-01-20 | Contact box for switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201374504Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478120B (en) * | 2009-01-20 | 2010-12-01 | 余永松 | Contact box for switch cabinet |
| CN107658700A (en) * | 2017-09-28 | 2018-02-02 | 句容市大唐电气有限公司 | A kind of excellent contact box of anti-wear performance |
-
2009
- 2009-01-20 CN CN200920113371U patent/CN201374504Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478120B (en) * | 2009-01-20 | 2010-12-01 | 余永松 | Contact box for switch cabinet |
| CN107658700A (en) * | 2017-09-28 | 2018-02-02 | 句容市大唐电气有限公司 | A kind of excellent contact box of anti-wear performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANGSHENG KAIHUA QIYI ELECTRICAL EQUIPMENT CO. Free format text: FORMER OWNER: YU YONGSONG Effective date: 20101209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 324302 ZHEJIANGSHENG KAIHUA QIYI ELECTRICAL EQUIPMENT CO., LTD., NO.418, BAISHENG ROAD, ECONOMIC DEVELOPMENT ZONE, HUABU, KAIHUA COUNTY, ZHEJIANG PROVINCE TO: 324302 NO.418, BAISHENG ROAD, ECONOMIC DEVELOPMENT ZONE, HUABU, KAIHUA COUNTY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101209 Address after: Parkson road 324302 Chinatown Kaihua County of Zhejiang Province Economic Development Zone No. 418 Patentee after: Zhejiangsheng Kaihua Qiyi Electrical Equipment Co., Ltd. Address before: Parkson road 324302 Chinatown Kaihua County of Zhejiang Province Economic Development Zone No. 418 Zhejiang Kaihua 71 power equipment limited liability company Patentee before: Yu Yongsong |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20091230 Effective date of abandoning: 20090120 |