CN201340972Y - Contact box applicable to 24KV high voltage switch cabinet - Google Patents
Contact box applicable to 24KV high voltage switch cabinet Download PDFInfo
- Publication number
- CN201340972Y CN201340972Y CNU2008201699719U CN200820169971U CN201340972Y CN 201340972 Y CN201340972 Y CN 201340972Y CN U2008201699719 U CNU2008201699719 U CN U2008201699719U CN 200820169971 U CN200820169971 U CN 200820169971U CN 201340972 Y CN201340972 Y CN 201340972Y
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- China
- Prior art keywords
- box body
- box
- contact box
- contact
- switch cabinet
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Abstract
The utility model relates to a contact box applicable to a 24KV high voltage switch cabinet, comprising a box body. The box body is in a hollow cylinder shape; a wire inlet opening and a wire outlet opening are arranged on the box body, and the wire inlet opening is arranged below the box body, and the 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 opening of the box body is sealed by a close cover, and the close cover and the box body are integrally formed. Firstly, the contact box is applicable to the 24KV high voltage switch cabinet; secondly, the contact box solves the problems of the prior art that the electric field is irregularly distributed; thirdly, the contact box can be applied to severe environments such as high altitude areas, and thereby, the application range is widened; lastly, the box body of the contact box and the upper close cover are integrally formed so that a nut structure for mounting a plastic cover is removed, thus not only eliminating the phenomenon of air gas discharge but also reducing the cost and facilitating the installation wiring for a cable.
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.
China Patent No. ZL02265010.5 discloses a kind of novel contact box, though the patented product has its advantage, there is following shortcoming in it.At first, non-uniform electric, height is put in insulator office, has reduced the useful life of contact box.Secondly, only depend on that heat-shrinkable T bush comes the reinforced insulation performance on the busbar, its output cylinder insulation property are poor.And in order to improve insulation property, erection bay dividing plate separately, this has just increased the complexity of structure, has also improved manufacturing cost certainly.
In addition, 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.And existing grid power transmission generally adopts 10KV, and wherein one of reason is the technology of transmission of electricity requirement that the structure of contact box (comprising above-mentioned patented technology scheme) can't satisfy 20KV.
Therefore, be necessary the structure of existing contact box is done some improvement and innovation,, satisfy the grid power transmission demand of 20KV so that it overcomes above-mentioned technological deficiency, and is applicable in the switch cubicle of 24KV.
Summary of the invention
The utility model discloses a kind of contact box, it has solved the technical problem of existing contact box non-uniform electric and insulation property difference, and in the high-tension switch cabinet applicable to 24KV, has satisfied the grid power transmission demand of 20KV, improve the transmission voltage of electrical network, thereby reduced line loss.
For solving the problems of the technologies described above, technical solution adopted in the utility model: the contact box that is applicable to the 24KV high-tension switch cabinet, comprise box body, box body is hollow tube-shape, and box body is provided with incoming line, line outlet, incoming line is in the box body below, line outlet is in box body top, and the box body outer wall forms diffusing skirt, and the suitable for reading of box body sealed by capping, capping and box body are one-body molded, capping inwall installing shading ring.
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, the bottom outer wall of box body is provided with mounting seat, has installing hole on the mounting seat, and mounting seat and box body are one-body molded.
Described contact box, box body is made by epoxy resin.
Contact box of the present utility model has the following advantages:
At first, 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.
Secondly, this contact box has installed the high-tension shielding ring additional, has solved the problem of non-uniform electric in the prior art, has reduced insulator office and has put, and has further prolonged useful life.
Once more, 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.
At last, the box body and the upper cover of contact box are one-body molded, have cancelled and have adopted nut that the structure of vinyl cover is installed, and have both eliminated the air gap electric discharge phenomena, have reduced cost again, and convenient installation wiring to cable.
Description of drawings
Fig. 1 is a sectional structure schematic diagram of the present utility model.
Fig. 2 is that the A of Fig. 1 is to view.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
As shown in Figure 1, 2, 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 5, and box body 5 is hollow tube-shape, and the upper end of box body 5 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 inwall of upper cover 9 is installed inserts 4 and high-tension shielding ring 3, behind the installation high-tension shielding ring, has reduced insulator office and has put, and has prolonged useful life.
The top of box body 5 has line outlet 2, and the bottom has incoming line 8.Form outwards outstanding rectangle frame in the outside of box body line outlet 2.Like this, the erection bay dividing plate simplifies the structure separately, has reduced manufacturing cost, and makes things convenient for wiring.
The bottom outer wall of box body 5 outwards forms mounting seat 7, and mounting seat 7 is square, and four jiaos of places, bottom surface that square mounting seat 7 is installed respectively have installing hole 6.
The outer wall of box body 5 and inwall form the skirt 11,12 that looses respectively.The outer skirt 11 that looses is established 8 circles altogether, is in the below of line outlet 2.Compared with prior art, the number of turns of the skirt 11 that looses has outward increased by one times, thereby has increased creepage distance.The interior skirt 12 that looses has 7 circles, is in the interior bottom of box body 5, and it has prolonged creepage distance, has improved insulation property, in adverse circumstances such as high height above sea level, has enlarged its scope of application.
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 (5)
1, is applicable to the contact box of 24KV high-tension switch cabinet, comprise box body, box body is hollow tube-shape, box body is provided with incoming line, line outlet, and incoming line is in the box body below, and line outlet is in box body top, the box body outer wall forms diffusing skirt, it is characterized in that: the suitable for reading of described box body sealed by capping, and capping and box body are one-body molded, capping inwall installing shading ring.
2, contact box as claimed in claim 1 is characterized in that: the inwall of described box body forms diffusing skirt.
3, contact box as claimed in claim 2 is characterized in that: the skirt that looses in described is established 7 circles altogether.
4, contact box as claimed in claim 1 is characterized in that: the bottom outer wall of described box body is provided with mounting seat, has installing hole on the mounting seat, and mounting seat and box body are one-body molded.
5, 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 |
|---|---|---|---|
| CNU2008201699719U CN201340972Y (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 |
|---|---|---|---|
| CNU2008201699719U CN201340972Y (en) | 2008-12-15 | 2008-12-15 | Contact box applicable to 24KV high voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201340972Y true CN201340972Y (en) | 2009-11-04 |
Family
ID=41236515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201699719U Expired - Lifetime CN201340972Y (en) | 2008-12-15 | 2008-12-15 | Contact box applicable to 24KV high voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201340972Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207762A (en) * | 2016-08-09 | 2016-12-07 | 河南森源电气股份有限公司 | A kind of contact box and switchgear |
-
2008
- 2008-12-15 CN CNU2008201699719U patent/CN201340972Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207762A (en) * | 2016-08-09 | 2016-12-07 | 河南森源电气股份有限公司 | A kind of contact box and switchgear |
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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. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091104 |