CN202444088U - Mineral insulated cable terminal - Google Patents
Mineral insulated cable terminal Download PDFInfo
- Publication number
- CN202444088U CN202444088U CN2012200450368U CN201220045036U CN202444088U CN 202444088 U CN202444088 U CN 202444088U CN 2012200450368 U CN2012200450368 U CN 2012200450368U CN 201220045036 U CN201220045036 U CN 201220045036U CN 202444088 U CN202444088 U CN 202444088U
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- CN
- China
- Prior art keywords
- insulator
- cable
- mineral insulated
- plug
- insulator plug
- 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 - Fee Related
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Abstract
The utility model discloses a mineral insulated cable terminal which comprises an insulator, wherein a conical hole is arranged at the rear part of the insulator; a corresponding conical insulator plug is inserted into the conical hole; a cable is wrapped in the insulator plug; a metal conductive column is arranged at the front end of the insulator; a wire core cavity communicated with the inner cavity of the insulator plug is arranged at the rear part of the metal conductive column; an elastic conductor is arranged in the wire core cavity; a high-voltage shielding sleeve is arranged at the rear part of the metal conductive column; and a stress cone which can be sleeved on the outer wall of the cable is embedded on the inner wall of the rear part of the insulator plug. The mineral insulated cable terminal disclosed by the utility model is an inner-cone pluggable structure, has a simple and compact structure and a small volume, and can improve the electric field distribution at the cable connection part; and moreover, the mineral insulated cable terminal has good insulating property, can meet the requirement on the electric strength of connecting a high and medium-pressure gas-insulated metal-enclosed switch cabinet or transformer with the tail end of the cable, and is convenient to mount.
Description
Technical field
The utility model relates to a kind of electric elements, particularly a kind of mineral insulated cable terminal.
Background technology
When carrying out the cable connection; The core of cable must exhume out; But, may cause electric stress to be concentrated because of the electric field distortion that high-tension electricity produces in the part that exhumes and cause electrical discharge, so the high pressure cable termination must have reliable shielding and insulation property for the high pressure cable; The existing cable termination that is connected with the high pressure electric equipment adopts the ceramic-type structure more; Exist volume big, cracky, safe and reliable is is inadequately installed and used deficiencies such as inconvenience: along with greatly developing of China's electric utility; Require various high pressure power equipments also will realize it being miniaturization, therefore also need a kind of cable connecting terminal that can adapt to the miniaturization that is connected with this kind equipment.
The utility model content
The purpose of the utility model is in order to overcome the problems referred to above, a kind of mineral insulated cable terminal to be provided.
For reaching this purpose, the method that the utility model adopts is: a kind of mineral insulated cable terminal comprises insulator; Have a bellmouth at described insulator rear portion; In described bellmouth, be inserted with corresponding taper insulator plug, in the insulator plug, be enclosed with cable, be provided with the metallic conduction post at the front end of described insulator; Metallic conduction post rear portion is provided with the core chamber that is communicated with insulator plug inner chamber; In the core chamber, be provided with elastic electric conductor, be provided with the high-tension shielding cover, on the inwall at the rear portion of insulator plug, be embedded with the stress cone that can be enclosed within on the cable outer wall at the rear portion of described metallic conduction post.
As a kind of improvement of the utility model, the tubaeform conical surface of said stress cone inwall front port setting is imbedded in the sidewall of insulator plug.
A kind of improvement as the utility model is provided with aluminium shell at the rear portion of described insulator plug.
A kind of improvement as the utility model is provided with spring in the rear end of insulator plug.
This practicality beneficial effect be: the utility model is an inner cone plug formula structure; Simple and compact for structure; Volume is little, can improve the Electric Field Distribution of cable connecting part position, good insulation preformance; Can satisfy the electrical strength requirement that high pressure gas-insulated metal enclosed switchgear cabinet or transformer are connected with cable end piece, and easy for installation.
Description of drawings
Fig. 1 is the structural representation of the embodiment 1 of the utility model;
Each parts is among the figure: 1 metallic conduction post, 2 high-tension shielding covers, 3 insulators, 4 insulator plugs, 5 springs, 6 aluminium shells, 7 stress cones, the tubaeform conical surface of 7-1,8-1 core, 9, elastic conductor.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done detailed explanation:
A kind of mineral insulated cable terminal as shown in Figure 1; Comprise insulator 3; Have a bellmouth at described insulator 3 rear portions, in described bellmouth, be inserted with corresponding taper insulator plug 4, in insulator plug 4, be enclosed with cable; Front end at described insulator 3 is provided with metallic conduction post 1; Metallic conduction post 1 rear portion is provided with the core chamber 1-1 that is communicated with insulator plug inner chamber, in the 1-1 of core chamber, is provided with elastic conductor 9, is provided with high-tension shielding cover 2 at the rear portion of described metallic conduction post 1; On the inwall at the rear portion of insulator plug 4, be embedded with the stress cone 7 that can be enclosed within on the cable outer wall, the tubaeform conical surface 7-1 of said stress cone 7 inwall front port settings imbeds in the sidewall of insulator plug 4.
Be provided with aluminium shell 6 at the rear portion of described insulator plug 4; Be provided with spring 5 in the rear end of insulator plug 4; Extruding through spring 5 makes the conical surface of blind plug 4 be close on the bellmouth inwall of insulator, does not stay the slit, improves the insulation property of this connecting portion; Simultaneously can execute forward a power, make it pass through elastic conductor 9 and be connected with metallic conduction post 1 to cable core 8-1.
High-tension shielding cover 2 usefulness metal materials are processed; Stress cone 7 usefulness semiconductive silicon rubber are processed; High-tension shielding cover 2 is equipped with the surface of revolution around cable center's axis with the tubaeform conical surface 7-1 of stress cone 7 front ends; Its rotation bus is made up of the camber line that slyness connects, thereby makes the high voltage electric field of this part be tending towards even.
The utility model is an inner cone plug formula structure, and simple and compact for structure, volume is little; Can improve the Electric Field Distribution of cable connecting part position; Good insulation preformance can satisfy the electrical strength requirement that high pressure gas-insulated metal enclosed switchgear cabinet or transformer are connected with cable end piece, and easy for installation.
The above; It only is the preferred embodiment of the utility model; Be not to be the utility model to be done the restriction of any other form, and, still belong to the utility model scope required for protection according to any modification or equivalent variations that the technical spirit of the utility model is done.
Claims (4)
1. mineral insulated cable terminal; It is characterized in that: comprise insulator (3); Have a bellmouth at described insulator (3) rear portion; In described bellmouth, be inserted with corresponding taper insulator plug (4), in insulator plug (4), be enclosed with cable, be provided with metallic conduction post (1) at the front end of described insulator (3); Metallic conduction post (1) rear portion is provided with the core chamber (1-1) that is communicated with insulator plug inner chamber; In core chamber (1-1), be provided with elastic conductor (9), be provided with high-tension shielding cover (2), on the inwall at the rear portion of insulator plug (4), be embedded with the stress cone (7) that can be enclosed within on the cable outer wall at the rear portion of described metallic conduction post (1).
2. a kind of mineral insulated cable according to claim 1 terminal is characterized in that: the tubaeform conical surface (7-1) that said stress cone (7) inwall front port is provided with is imbedded in the sidewall of insulator plug (4).
3. a kind of mineral insulated cable according to claim 1 and 2 terminal is characterized in that: be provided with aluminium shell (6) at the rear portion of described insulator plug (4).
4. a kind of mineral insulated cable according to claim 3 terminal is characterized in that: be provided with spring (5) in the rear end of insulator plug (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200450368U CN202444088U (en) | 2012-02-13 | 2012-02-13 | Mineral insulated cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200450368U CN202444088U (en) | 2012-02-13 | 2012-02-13 | Mineral insulated cable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202444088U true CN202444088U (en) | 2012-09-19 |
Family
ID=46825518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200450368U Expired - Fee Related CN202444088U (en) | 2012-02-13 | 2012-02-13 | Mineral insulated cable terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202444088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410471A (en) * | 2016-11-29 | 2017-02-15 | 中国电子科技集团公司第四十研究所 | Ultrahigh voltage connector |
-
2012
- 2012-02-13 CN CN2012200450368U patent/CN202444088U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410471A (en) * | 2016-11-29 | 2017-02-15 | 中国电子科技集团公司第四十研究所 | Ultrahigh voltage connector |
| CN106410471B (en) * | 2016-11-29 | 2019-01-04 | 中国电子科技集团公司第四十研究所 | Super-pressure connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20140213 |