CN201340971Y - Contact box applicable to 24KV high voltage switch cabinet - Google Patents
Contact box applicable to 24KV high voltage switch cabinet Download PDFInfo
- Publication number
- CN201340971Y CN201340971Y CNU2008201699672U CN200820169967U CN201340971Y CN 201340971 Y CN201340971 Y CN 201340971Y CN U2008201699672 U CNU2008201699672 U CN U2008201699672U CN 200820169967 U CN200820169967 U CN 200820169967U CN 201340971 Y CN201340971 Y CN 201340971Y
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- box body
- box
- contact box
- contact
- switch cabinet
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- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of high voltage switch cabinet fitting manufacturing, in particular to a contact box applicable to a 24KV high voltage switch cabinet. The contact box comprises a box body, wherein the box body is in a hollow cylinder shape; a wire inlet opening is arranged below the box body; a wire outlet opening is arranged at the upper part of the box body; sheds are formed on the outer wall of the box body; the upper end cylinder opening of the box body is sealed by a close cover which is integrated with the box body. The contact box has the advantages in that: 1. the contact box has high withstand voltage and mechanical strength and long service life, does not have the phenomena of discharge and breakdown, and is applicable to the 24KV high voltage switch cabinet; 2. the box body and the upper close cover are integrally formed so that no gas exists therebetween, thereby removing the phenomenon of air gap discharge; 3. a conductive sealing rubber ring is embedded in the outer surface of the close cover, thus removing the phenomenon of electric arc discharge; 4. the number of shed turns is increased for extending the creepage distance, and thereby, the contact box can be applied to severe environments such as high altitude areas, and the application range is expanded.
Description
Technical field
The utility model belongs to the accessory manufacturing technology field of high-tension switch cabinet, particularly a kind of contact box that is applicable to the 24KV high-tension switch cabinet.
Background technology
High-tension switch cabinet comprises contact box, curved dividing plate, sleeve pipe etc., and contact box is the requisite cashier's office in a shop accessory of high-voltage switch gear, and behind the use contact box, the installation and maintenance of circuit are all very easy in the high-tension switch cabinet.The performance of contact box will directly influence the security reliability of withstand voltage properties, insulation property and the operation of high-tension switch cabinet.
According to the regulation of GB156-2003 " normal voltage ", when the nominal voltage of network system was 20KV, then the corresponding equipment rated voltage was 24KV.Generally use at present the grid power transmission of 10KV, compare, adopt the 20KV grid power transmission can reduce line loss greatly with the 10KV grid power transmission.So the 20KV electric pressure will be a development in future trend.
There is following defective in the structure of existing contact box.Its snapping vinyl cover suitable for reading like this, must leave the gap between contact box and lid, because the existence of this gap can produce the air gap electric discharge phenomena, has influenced the useful life of contact box.
Summary of the invention
The utility model discloses a kind of contact box, it is applicable in the high-tension switch cabinet of 24KV, and has solved existing contact box and have the air gap electric discharge phenomena and reduce the problem in useful life.
For solving the problems of the technologies described above, technical solution adopted in the utility model: a kind of contact box that is applicable to the 24KV high-tension switch cabinet, comprise box body, box body is hollow tube-shape, the box body below has incoming line, and box body top is provided with line outlet, and the box body outer wall forms diffusing skirt, the upper end nozzle of box body is sealed by capping, and capping and box body are one-body molded.
Described contact box, the outer surface of capping forms an annular groove, setting-in conductive rubber sealing ring in the annular groove.
Described contact box, the bottom outer wall of box body is provided with base plate, has installing hole on the base plate, and base plate and box body are one-body molded.
Described contact box, the inwall of box body forms diffusing skirt.
Described contact box, interior diffusing skirt are established 7 circles altogether.
Described contact box, box body is made by epoxy resin.
Contact box of the present utility model has the following advantages:
1, this contact box withstand voltage height, mechanical strength height, discharge off and punch-through, long service life in the high-tension switch cabinet applicable to 24KV, thereby have satisfied the network system of 20KV.
2, box body of this contact box and upper cover are one-body molded, do not have the gap between the two, thereby have eliminated the air gap electric discharge phenomena.
3, in the outer surface setting-in conductive rubber sealing ring of capping, eliminated the arc discharge phenomenon.
4, this contact box has increased diffusing apron ring number, has prolonged creepage distance, thereby can be used for adverse circumstances such as high height above sea level, has enlarged the scope of application.
Description of drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is a cutaway view of the present utility model.
Fig. 3 is a upward view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
As shown in Figure 1, 2, 3, the utility model is applicable to that the contact box of 24KV high-tension switch cabinet adopts epoxy resin to make, and it comprises box body 1, and box body 1 is hollow tube-shape, and the upper end of box body 1 is sealed by upper cover 9, and both are one-body molded.Therefore, dress mode in this contact box adopts, the mounting structure of vinyl cover is adorned in the existing employing of cancellation in addition, both simplifies the structure, and is convenient to fitting operation again, the more important thing is the electric discharge phenomena of having eliminated the air gap.
The outer surface of upper cover 9 forms an annular groove, and the embedded conductive rubber sealing ring 10 of annular groove adopts this structure, can eliminate the arc discharge phenomenon.
The bottom of box body 1 has incoming line 6, and top has line outlet 3.The bottom outer wall of box body 1 outwards forms base plate 5, and base plate 5 is rectangular, and four jiaos of places, the bottom surface of base plate 5 respectively have installing hole 7.Base plate 5 is one-body molded with box body 1.
The outer wall of box body 1 and inwall form the skirt 41,42 that looses respectively.Compared with prior art, the number of turns of the skirt 41 that looses has outward increased by one times, thereby has increased creepage distance.The interior skirt 42 that looses has 7 circles, has prolonged creepage distance, has improved insulation property, in adverse circumstances such as high height above sea level, has enlarged its scope of application.
Form the rectangle frame of outside protrusion in the outside of box body line outlet 3.Like this, the erection bay dividing plate simplifies the structure separately, has reduced manufacturing cost, and makes things convenient for wiring.
The basic mechanical design feature index of the utility model contact box: vitrification point (Tg): 95～105 ℃; Industrial frequency withstand voltage: 65KV/1min; Partial discharge is not more than 10pC; Hot strength 70～90Mpa; Bending strength 110～130Mpa.
Contact box of the present utility model has been gathered many performances, can satisfy the user demand of 24KV high-tension switch cabinet fully, guarantees that electric equipment moves safely and reliably.
Above-mentioned only is detailed description to the utility model most preferred embodiment, is not to qualification of the present utility model.Those of ordinary skill in the art will be appreciated that the utility model also has many embodiment, and every technical scheme of further improving or being equal on the utility model basis all falls into protection range of the present utility model.
Claims (6)
1, a kind of contact box that is applicable to the 24KV high-tension switch cabinet comprises box body, and box body is hollow tube-shape, the box body below has incoming line, and box body top is provided with line outlet, and the box body outer wall forms diffusing skirt, it is characterized in that: the upper end nozzle of described box body is sealed by capping, and capping and box body are one-body molded.
2, contact box as claimed in claim 1 is characterized in that: the outer surface of described capping forms an annular groove, setting-in conductive rubber sealing ring in the annular groove.
3, contact box as claimed in claim 1 is characterized in that: the bottom outer wall of described box body is provided with base plate, has installing hole on the base plate, and base plate and box body are one-body molded.
4, contact box as claimed in claim 1 is characterized in that: the inwall of described box body forms diffusing skirt.
5, contact box as claimed in claim 4 is characterized in that: the skirt that looses in described is established 7 circles altogether.
6, contact box as claimed in claim 1 is characterized in that: described box body is made by epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201699672U CN201340971Y (en) | 2008-12-15 | 2008-12-15 | Contact box applicable to 24KV high voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201699672U CN201340971Y (en) | 2008-12-15 | 2008-12-15 | Contact box applicable to 24KV high voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201340971Y true CN201340971Y (en) | 2009-11-04 |
Family
ID=41236514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201699672U Expired - Fee Related CN201340971Y (en) | 2008-12-15 | 2008-12-15 | Contact box applicable to 24KV high voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201340971Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969181A (en) * | 2010-10-14 | 2011-02-09 | 句容市华通电器有限公司 | Contact box |
-
2008
- 2008-12-15 CN CNU2008201699672U patent/CN201340971Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969181A (en) * | 2010-10-14 | 2011-02-09 | 句容市华通电器有限公司 | Contact box |
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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: ZHEJIANG LEIAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: ZHEJIANG ROXZ ELECTRIC APPLIANCE CO., LTD. Effective date: 20101227 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20101227 Address after: 317605 Zhejiang province Yuhuan County Truman Zhen Nan Xing Road No. 190 Patentee after: Zhejiang Leian Electric Co., Ltd. Address before: 317605 Zhejiang province Yuhuan County Truman Zhen Nan Xing Road No. 190 Patentee before: Zhejiang ROXZ Electric Appliance Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20131215 |