CN201490581U - Novel contact box - Google Patents
Novel contact box Download PDFInfo
- Publication number
- CN201490581U CN201490581U CN2009201896622U CN200920189662U CN201490581U CN 201490581 U CN201490581 U CN 201490581U CN 2009201896622 U CN2009201896622 U CN 2009201896622U CN 200920189662 U CN200920189662 U CN 200920189662U CN 201490581 U CN201490581 U CN 201490581U
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- box
- box body
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- novel contact
- contact box
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Abstract
The utility model belongs to the technical field of the fitting manufacturing of high-voltage switch cabinets, which particularly relates to a novel contact box. The novel contact box comprises a box body, wherein the box body is provided with an inner cavity; the upper part of the inner cavity is sealed by an upper cover; the bottom of the box body is a wire inlet, the upper part is provided with a wire outlet, and the outer wall is provided with a shed; the bottom of the box body is provided with a base, and a mounting hole is formed on the base; the upper cover is fixedly provided with an insert; the inner wall of the box body is fixedly provided with a high-voltage shielding ring, and the high-voltage shielding ring is connected with the insert through a copper strip; the inner wall of the box body is provided with an arc insulating ring; and the base, the box body, the shed, the upper cover and the arc insulating ring are formed integrally. The contact box is applicable to 24 kV high-voltage switch cabinets, and satisfies the transmission of 20 kV grid systems.
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.
For adapting to the demand of social economy and power network development, promote the power supply capacity and the adaptive capacity of electrical network, reduce grid loss, economize the land resource, realize increase-volume, regenerate, boost, optimize the power network development of passage, popularize in an all-round way at medium voltage distribution network and use the power supply of 20KV electric pressure.Owing to adopt the 20KV grid power transmission can reduce line loss than 10KV, so 20KV electric pressure intensification in recent years is very fast, the 20KV electric pressure will be a development in future trend.
Summary of the invention
The utility model discloses a kind of novel contact box, the high-tension switch cabinet that it is applicable to 24KV satisfies the network system transmission of electricity of 20KV.
For solving the problems of the technologies described above technical solution adopted in the utility model: novel contact box comprises box body, and box body forms inner chamber, and inner chamber top is sealed by loam cake; The box body bottom is an incoming line, and line outlet is formed at top, and outer wall forms diffusing skirt; The bottom of box body is provided with base, has installing hole on the base; Loam cake fixed installation inserts; The inwall of box body sets firmly the high-tension shielding ring, and the high-tension shielding ring links to each other with inserts by copper bar; The inwall of box body forms the arc circle; Base, box body, diffusing skirt, loam cake and arc circle are one-body molded.
Described novel contact box, the outer wall of square box sets firmly the semiconductive circle on base.
Described novel contact box, the top of box body outwards form rectangular-shaped protuberance, and the middle part hollow out of this protuberance forms line outlet.
The diameter of top of chamber is 121mm or 180mm in the described novel contact box, box body.
Described novel contact box, the rectangular shape of base is respectively offered an installing hole for four jiaos of rectangular base.
Described novel contact box, installing hole is provided with sheath.
Described novel contact box, sheath are ring of silicone rubber,sealing.
Described novel contact box, contact box adopt anti-installation form to be installed on switch cubicle.
Described novel contact box, the high-tension shielding net is loaded on the inside of box wall.
Contact box of the present utility model has the following advantages:
1, withstand voltage height, mechanical strength height, discharge off and punch-through, long service life are applicable to the high-tension switch cabinet of 24KV, thereby satisfy the network system of 20KV.
2, interior dress high-tension shielding net, uniform electric field, the useful life of prolongation contact box.The high-tension shielding net can be loaded on inboard wall of cartridge, also can be loaded on the inside of box wall, with uniform electric field.When the high-tension shielding net was loaded on inboard wall of cartridge, contact box was along face and air insulation.When the high-tension shielding net is in the inside of box wall, be built-in electrical insulation, adopt all insulation structure, eliminate creeping discharge and do not dodged electric discharge phenomena, promptly adopted insulating material to insulate, but not gauze screen is to rely on air to insulate on the insulation top layer as described above.
3, top of chamber Φ 121 or Φ 180 in the contact box applicable to the installation of multiple model electric current Mume flower contact, have solved because of increasing the problem that insulation thickness reduces inner usage space, have remedied the vacancy that big electric current product uses.
4, the inner chamber creep distance that will have contact box now changes the arc circle into, to reduce the long-pending phenomenon of revealing of product contamination, strengthens the product insulation property.
5, contact box is installed on the switch cubicle by anti-installation form, has increased creepage distance.
6, set up Φ 10 semiconductive circles with the cabinet matching part, make the junction surface of cabinet and contact box not have the gap, thereby eliminated the air gap electric discharge phenomena.
7, the installing hole on the base adopts ring of silicone rubber,sealing to seal the installation screw rod, and the reinforced insulation performance prevents creepage phenomenon.
The utility model contact box has more excellent performance, satisfies the operation technique requirement of higher network system transmission of electricity, guarantees that electric equipment moves safely and reliably.
Description of drawings
Fig. 1 is the structural representation of embodiment one contact box.
Fig. 2 is the stereogram of embodiment one contact box.
Fig. 3 is the upward view of embodiment one contact box.
Fig. 4 is the structural representation of embodiment two contact boxs.
Fig. 5 is the stereogram of embodiment two contact boxs.
Fig. 6 is the upward view of embodiment two contact boxs.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
Embodiment one: as shown in Figure 1, 2, 3, box body 5 is up-small and down-big tubular, its inner inner chamber that forms, and the diameter of interior top of chamber is 121mm, applicable to the electric current Mume flower contact that multiple model is installed.The top of inner chamber is sealed by loam cake 9, and the bottom is an incoming line 8.The middle inside fixed installation inserts 3 of loam cake 9.The inwall of box body 5 forms arc circle 14, referring to cutaway view, leaves the gap between the lower inner wall of arc circle 14 and box body 5, the arc circle is set can reduces the long-pending phenomenon of revealing of contamination, strengthens the insulation property of contact box.
Rectangular-shaped protuberance 10 is outwards formed at the top of box body 5, the middle part hollow out of this protuberance 10, and is communicated with formation line outlet 2 with the inner chamber of box body 5.Like this, erection bay dividing plate has separately been simplified the structure of contact box, has reduced manufacturing cost, and has made things convenient for wiring.
The bottom of box body 5 is provided with base 7, base 7 rectangular shapes, respectively offer an installing hole 6 for four jiaos of rectangular base 7, installing hole 6 is provided with ring of silicone rubber,sealing 12, installing hole 6 is screwed into screw rod, contact box is installed on the mounting panel of switch cubicle, and appearing of screw rod entangled by ring of silicone rubber,sealing 12, thereby strengthened insulation property, prevented creepage phenomenon.Adopt anti-installation form, when promptly contact box was assemblied in switch cubicle, base 7 exposed, and can increase the creepage distance of contact box like this.
The outer wall of the box body 5 that upper convex portion 10 and base are 7 forms the skirt 1 that looses.
The upper inside wall of box body 5 sets firmly high-tension shielding ring 4, and high-tension shielding ring 4 links to each other with inserts 3 by copper bar 11.Come uniform electric field by interior dress high-tension shielding ring 4, to prolong the useful life of contact box.
The outer wall of square box 5 sets firmly semiconductive circle 13 on base 7, and its specification is Φ 10.Set up semiconductive circle 13 to seal insulation with the cabinet matching part, make the junction surface of cabinet and contact box not have the gap, thereby eliminated the air gap electric discharge phenomena.
The basic mechanical design feature index of present embodiment contact box: vitrification point (Tg): 95～105 ℃; Industrial frequency withstand voltage: 79KV/1min; Partial discharge is not more than 10pC; Hot strength 70～90Mpa; Bending strength 110～130Mpa.
Embodiment two: shown in Fig. 4-6, the high-tension shielding net 4 of present embodiment is in the pars intramuralis of box body 5, and with uniform electric field, it is a built-in electrical insulation, adopts all insulation structure, has eliminated the contact box creeping discharge and has not dodged electric discharge phenomena.
The diameter of interior top of chamber is 180mm, is applicable to that multiple model and big electric current Mume flower contact are installed and cooperation, has solved because of increasing the problem that insulation thickness reduces inner usage space, has remedied the vacancy that big electric current product uses.
Other content of present embodiment is identical with embodiment one.
The basic mechanical design feature index of present embodiment contact box: vitrification point (Tg): 95～105 ℃; Industrial frequency withstand voltage: 79KV/1min; Partial discharge is not more than 10pC; Hot strength 70～90Mpa; Bending strength 110～130Mpa.
Above-mentioned is explanation to two preferred embodiments of the utility model, is not to qualification of the present utility model.Those of ordinary skill in the art will be appreciated that all technical schemes of further improving or being equal to all fall into protection range of the present utility model on the utility model basis.
Claims (9)
1. novel contact box comprises box body, and box body forms inner chamber, and inner chamber top is sealed by loam cake; The box body bottom is an incoming line, and line outlet is formed at top, and outer wall forms diffusing skirt; The bottom of box body is provided with base, has installing hole on the base; It is characterized in that: described loam cake fixed installation inserts; The inwall of box body sets firmly the high-tension shielding ring, and the high-tension shielding ring links to each other with inserts by copper bar; The inwall of box body forms the arc circle; Base, box body, diffusing skirt, loam cake and arc circle are one-body molded.
2. novel contact box as claimed in claim 1 is characterized in that: the outer wall of square box sets firmly the semiconductive circle on base.
3. novel contact box as claimed in claim 1 is characterized in that: rectangular-shaped protuberance is outwards formed at the top of box body, and the middle part hollow out of this protuberance forms line outlet.
4. as each described novel contact box of claim 1-3, it is characterized in that: the diameter of top of chamber is 121mm or 180mm in the described box body.
5. novel contact box as claimed in claim 1 is characterized in that: the rectangular shape of described base, respectively offer an installing hole for four jiaos of rectangular base.
6. as claim 1 or 5 described novel contact boxes, it is characterized in that: described installing hole is provided with sheath.
7. novel contact box as claimed in claim 6 is characterized in that: described sheath is a ring of silicone rubber,sealing.
8. as claim 1-3 or 5 or 7 each described novel contact boxes, it is characterized in that: described contact box adopts anti-installation form to be installed on switch cubicle.
9. novel contact box as claimed in claim 1 is characterized in that: described high-tension shielding net is loaded on the inside of box wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201896622U CN201490581U (en) | 2009-07-23 | 2009-07-23 | Novel contact box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201896622U CN201490581U (en) | 2009-07-23 | 2009-07-23 | Novel contact box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201490581U true CN201490581U (en) | 2010-05-26 |
Family
ID=42429448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201896622U Expired - Lifetime CN201490581U (en) | 2009-07-23 | 2009-07-23 | Novel contact box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201490581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769257A (en) * | 2012-06-27 | 2012-11-07 | 厦门市恒源新电力设备有限公司 | Contact box for handcart switch cabinet |
-
2009
- 2009-07-23 CN CN2009201896622U patent/CN201490581U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769257A (en) * | 2012-06-27 | 2012-11-07 | 厦门市恒源新电力设备有限公司 | Contact box for handcart switch cabinet |
| CN102769257B (en) * | 2012-06-27 | 2015-10-14 | 厦门市恒源新电力设备有限公司 | For the contact box of handcart switch cabinet |
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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: 20100526 |