CN201985269U - Pre-tightening tubular insulation bus joint - Google Patents
Pre-tightening tubular insulation bus joint Download PDFInfo
- Publication number
- CN201985269U CN201985269U CN2010206791827U CN201020679182U CN201985269U CN 201985269 U CN201985269 U CN 201985269U CN 2010206791827 U CN2010206791827 U CN 2010206791827U CN 201020679182 U CN201020679182 U CN 201020679182U CN 201985269 U CN201985269 U CN 201985269U
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- CN
- China
- Prior art keywords
- connection block
- prefastening
- insulation bus
- typed insulation
- pipe typed
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- 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 pre-tightening tubular insulation bus joint which comprises a connecting seat provided with a cavity, a connecting terminal and a pre-tightening part, wherein a boss is arranged in the cavity along the axis of the connecting seat, the inner end of the boss is connected and fixed with the inside of the sealed end of the connecting seat, the pre-tightening is arranged in the cavity and is vertically and fixedly connected with the boss, and two ends of the pre-tightening part are opposite to the inner wall of the connecting seat. After a tubular insulation bus stretches into the cavity through the opening end of the connecting seat, the outer wall of the tubular insulation bus is inserted into a gap between the pre-tightening part and the inner wall of the connecting seat, and the pre-tightening part abuts against the outer wall of the tubular insulation bus to ensure the insulation bus to be sufficiently contacted with the inner wall of the connecting seat; meanwhile, the pre-tightening part also directly abuts against the inner wall of the connecting seat so that the effective contact area of the tubular insulation bus is increased and the carrying capacity of the tubular insulation bus is improved under the condition of not increasing the overall diameter of an end part joint, and the effects of vibration and thermal expansion on the tubular insulation bus joint and end part insulation after the tubular insulation bus is electrified are improved.
Description
Technical field
The utility model relates to the interconnection technique of pipe typed insulation bus end, more particularly relates to a kind of prefastening pipe typed insulation busbar joint.
Background technology
The pipe typed insulation bus is a kind of power transmitting device of efficient conveying high-tension current, quick steady growth along with national economy, society's power consumption linearly rises, make the transforming plant main transformer capacity constantly strengthen, the rated current of main transformer low pressure outlet side also increases thereupon, and power department more and more uses the pipe typed insulation bus.The pipe typed insulation bus is compared with traditional rectangular bus bar, have that kelvin effect is good, unit cross section ampacity is big, radiating condition good, allowable stress is big, span is big, mechanical strength is high, electrical insulation properties is strong, main insulation stability of material height, characteristics such as insulating process is reasonable can effectively guarantee the power supply reliability of power transmission and transformation nets.But the pipe typed insulation busbar joint that uses adopts anchor ear mostly at present, metallic sheath or with the mode of curved metal pressing plate by bolt with soft copper, aluminium strip directly is fastened on the bus end, and then with the soft copper of bus end, aluminium strip is connected with the miscellaneous equipment terminal, though can guarantee the ampacity of bus termination like this, but soft copper, the thickness of aluminium strip increases greatly, the diameter of bus end integral body is increased, cost increases, also increased the difficulty of overhang insulation simultaneously greatly, for example the rubber-like anchor ear is wrapped in the insulating barrier, will reduce insulating reliability, influence the fail safe of pipe typed insulation bus overall operation, so need often maintenance overhang insulation, increased the maintenance cost of pipe typed insulation bus.In addition because factors such as the machining accuracy of pipe typed insulation bus and above-mentioned joint style, fit very easily cause bad phenomenon such as loose contact, contact resistance increase and temperature rise exceed standard.
The utility model content
At the problem that the diameter that has pipe typed insulation bus end-fitting integral body in the prior art is big, insulating reliability reduces and very easily cause loose contact, contact resistance increase, temperature rise to exceed standard, the purpose of this utility model provides a kind of prefastening pipe typed insulation busbar joint.
For achieving the above object, the utility model adopts following technical scheme:
A kind of prefastening pipe typed insulation busbar joint comprises the Connection Block, splicing ear and the pretension parts that have cavity, and an end of described Connection Block is provided with opening, other end sealing; Axis along Connection Block in the cavity is provided with boss, and the inner of boss and Connection Block blind end inboard are connected and fixed, and the pretension parts are located in the cavity and with the outer end vertical fixing of boss and are connected, and the two ends of the pretension parts all inwall with Connection Block are relative; The blind end outside of splicing ear and Connection Block is connected and fixed.
Described pretension parts comprise that copper touches son, arc-shaped leaf spring and mount pad, described mount pad is vertical with boss to be connected and fixed, the two ends of mount pad are provided with arc-shaped leaf spring successively from inside to outside and copper touches son, and the outside of arc-shaped leaf spring is connected with mount pad, and the inboard of arc-shaped leaf spring and copper touch son and is connected and fixed; Described copper touches son and comprises intercell connector and contact, and the two ends of intercell connector one side are provided with the contact, and the described contact inwall with Connection Block respectively is relative, and intercell connector opposite side and arc-shaped leaf spring inboard are connected and fixed.
The end outer rim that described Connection Block is provided with opening evenly is interval with notch.
The end outer rim that described Connection Block is provided with opening evenly has counter sink at interval.
Also have louvre on the described Connection Block blind end.
The cross section of described Connection Block is circular or square.
Described splicing ear is a T type structure.
Described Connection Block is connected with splicing ear one or split.
Compared with prior art, adopt a kind of prefastening pipe typed insulation busbar joint of the present utility model, comprise the Connection Block, splicing ear and the pretension parts that have cavity, an end of described Connection Block is provided with opening, other end sealing; Axis along Connection Block in the cavity is provided with boss, and the inner of boss and Connection Block blind end inboard are connected and fixed, and the pretension parts are located in the cavity and with the outer end vertical fixing of boss and are connected, and the two ends of the pretension parts all inwall with Connection Block are relative; The blind end outside of splicing ear and Connection Block is connected and fixed.After the openend of pipe typed insulation bus by Connection Block stretches in its cavity, in the gap between the outer wall insertion pretension parts of pipe typed insulation bus and the inwall of Connection Block, the outer wall that the pretension parts compress isolated bus makes it fully contact with the inwall of Connection Block, pretension parts inwall also direct and Connection Block offsets simultaneously, the pipe typed insulation bus is under the situation that does not increase the end-fitting integral diameter like this, increase its effective contact area, improve ampacity, improved pipe typed insulation bus energising back vibrations and thermal expansion influence simultaneously to pipe typed insulation busbar joint and overhang insulation, improved the contact reliability of bus and splicing ear, and the utlity model has simple in structure, easy to use, advantage with low cost.
Description of drawings
Fig. 1 is the end view of a kind of prefastening pipe typed insulation of the utility model busbar joint.
Fig. 2 is the cutaway view of edge " A-A " line among Fig. 1.
Fig. 3 is the vertical view of a kind of prefastening pipe typed insulation of the utility model of Fig. 1 busbar joint.
Embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
See also Fig. 1, Fig. 2 and a kind of prefastening pipe typed insulation busbar joint shown in Figure 3, comprise the Connection Block 1, splicing ear 2 and the pretension parts 3 that have cavity, an end of Connection Block 1 is provided with opening, other end sealing; Axis along Connection Block 1 in the cavity is provided with boss 4, and the inner of boss 4 and Connection Block 1 blind end inboard are connected and fixed, boss 4 outer end center drilling and tapping.Utilize fastening bolt 8 that pretension parts 3 are fixed on the tube type bus Connection Block 1, can realize and the flexibly connecting of pipe typed insulation bus 20, improve ampacity and system's operational reliability of pipe typed insulation bus 20, and prolong the useful life of pipe typed insulation bus 20.Pretension parts 3 are located in the cavity and with the outer end vertical fixing of boss 4 and are connected, and the two ends of the pretension parts 3 all inwall with Connection Block 1 are relative; Splicing ear 2 is connected and fixed with the blind end outside of Connection Block 1.Connection Block 1 is welded as a whole with splicing ear 2 or directly by the machine-shaping of copper rod one.Pretension parts 3 comprise that copper touches son 31, arc-shaped leaf spring 32 and mount pad 33, mount pad 33 and boss 4 vertical being connected and fixed, the two ends of mount pad 33 are provided with arc-shaped leaf spring 32 and copper from inside to outside successively and touch son 31, the outside of arc-shaped leaf spring 32 is connected with mount pad 33, and the inboard of arc-shaped leaf spring 32 and copper touch son 31 and is connected and fixed; Described copper touches son 31 and comprises intercell connector 311 and contact 312, and the two ends of intercell connector 311 1 sides are provided with contact 312, and contact 312 inwall with Connection Block 1 respectively is relative, and intercell connector 311 opposite sides and arc-shaped leaf spring 32 inboards are connected and fixed.Evenly even at interval 4 width that distribute of an end outer rim that Connection Block 1 is provided with opening are 5mm notch 5, to increase the connection elasticity of Connection Block 1, be convenient to the insertion of pipe typed insulation bus 20, make Connection Block 1 when inserting cast isolated bus 20, have certain elasticity like this, improve efficiency of assembling and contact precision, also reduce contact resistance simultaneously, improve system reliability.The end outer rim that Connection Block 1 is provided with opening does not have an also even 4-8 spaced apart counter sink 6 on the circumference of notch, is used to install dormant bolt.Use dormant bolt with Connection Block 1 and 20 lockings of pipe typed insulation bus, can improve the contact performance of Connection Block 1 and pipe typed insulation bus 20, Connection Block 1 surface does not have projection again and is convenient to insulation processing simultaneously.In order to improve the radiating effect of pipe typed insulation bus 20, on Connection Block 1 blind end, also have louvre 7.
During use, copper is touched son 31 and arc-shaped leaf spring 32 pack into and form pretension parts 3 in the mount pad 33, and be fixed in fastening bolt 8 on the boss 4 of Connection Block 1 inside.When inserting Connection Block 1, pipe typed insulation bus 20 presses down the end that copper touches son 31, the other end that copper is touched son 31 is pressed on the inwall of Connection Block 1, touching on the inwall that son 31 is pressed on the outer wall of pipe typed insulation bus 20 Connection Block 1 again at copper under the elastic force effect of arc-shaped leaf spring 32 simultaneously fully contacts it, use dormant bolt that Connection Block 1 is firm with 20 lockings of pipe typed insulation bus then, thereby this device is installed in pipe typed insulation bus 20 terminations.The copper of Connection Block 1 inner dress touches son 31, the outer wall of pipe typed insulation bus 20 can be pressed under the effect of arc-shaped leaf spring 32 on tube type bus connection headstock 1 inwall, can make copper touch sub 2 other ends again is pressed on the inwall of Connection Block 1, like this when increasing effective contact area, reduce pipe typed insulation bus 20 because of processing and assembling factor, and the thermal expansion after the energising is to the influence of pipe typed insulation bus 20 joints connection, thereby guaranteed the performance of whole cast isolated bus, and avoided because of 20 vibrations of pipe typed insulation bus partly damage busbar joint, thereby prolonged the useful life of pipe typed insulation bus 20.The shape of Connection Block 1 is unrestricted, can be rectangular tube, also can be round tube, for the ease of processing and insulation processing, preferentially Connection Block 1 is set to the circular metal tube connector among this Fig. 1.In order to improve the radiating effect of pipe typed insulation bus 20, can be on mount pad 33 end faces the louvre 7 of suitable interpolation some.Splicing ear 2 can also adopt T type structure, can make things convenient for like this with cable terminal, be flexible coupling terminal and other hard bus to be connected, and purposes is very extensive.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the purpose of this utility model, and be not with opposing qualification of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model variation, the modification of the above embodiment.
Claims (8)
1. prefastening pipe typed insulation busbar joint, it is characterized in that: comprise the Connection Block, splicing ear and the pretension parts that have cavity, an end of described Connection Block is provided with opening, other end sealing; Axis along Connection Block in the cavity is provided with boss, and the inner of boss and Connection Block blind end inboard are connected and fixed, and the pretension parts are located in the cavity and with the outer end vertical fixing of boss and are connected, and the two ends of the pretension parts all inwall with Connection Block are relative; The blind end outside of splicing ear and Connection Block is connected and fixed.
2. prefastening pipe typed insulation busbar joint according to claim 1, it is characterized in that: described pretension parts comprise that copper touches son, arc-shaped leaf spring and mount pad, described mount pad is vertical with boss to be connected and fixed, the two ends of mount pad are provided with arc-shaped leaf spring successively from inside to outside and copper touches son, the outside of arc-shaped leaf spring is connected with mount pad, and the inboard of arc-shaped leaf spring and copper touch son and is connected and fixed; Described copper touches son and comprises intercell connector and contact, and the two ends of intercell connector one side are provided with the contact, and the described contact inwall with Connection Block respectively is relative, and intercell connector opposite side and arc-shaped leaf spring inboard are connected and fixed.
3. prefastening pipe typed insulation busbar joint according to claim 1 is characterized in that: the end outer rim that described Connection Block is provided with opening evenly is interval with notch.
4. prefastening pipe typed insulation busbar joint according to claim 1 is characterized in that: the end outer rim that described Connection Block is provided with opening evenly has counter sink at interval.
5. prefastening pipe typed insulation busbar joint according to claim 1 is characterized in that: also have louvre on the described Connection Block blind end.
6. prefastening pipe typed insulation busbar joint according to claim 1 is characterized in that: the cross section of described Connection Block is for circular or square.
7. prefastening pipe typed insulation busbar joint according to claim 1 is characterized in that: described splicing ear is a T type structure.
8. prefastening pipe typed insulation busbar joint according to claim 1 is characterized in that: described Connection Block is connected with splicing ear one or split.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206791827U CN201985269U (en) | 2010-12-24 | 2010-12-24 | Pre-tightening tubular insulation bus joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206791827U CN201985269U (en) | 2010-12-24 | 2010-12-24 | Pre-tightening tubular insulation bus joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985269U true CN201985269U (en) | 2011-09-21 |
Family
ID=44612725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206791827U Expired - Fee Related CN201985269U (en) | 2010-12-24 | 2010-12-24 | Pre-tightening tubular insulation bus joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201985269U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732474A (en) * | 2017-10-11 | 2018-02-23 | 江苏士林电气设备有限公司 | A kind of complete prefabricated high direct voltage insulating tube type busbar joint |
| CN113178827A (en) * | 2021-04-20 | 2021-07-27 | 合肥志功机电工程有限公司 | Tubular wall bushing |
-
2010
- 2010-12-24 CN CN2010206791827U patent/CN201985269U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107732474A (en) * | 2017-10-11 | 2018-02-23 | 江苏士林电气设备有限公司 | A kind of complete prefabricated high direct voltage insulating tube type busbar joint |
| CN113178827A (en) * | 2021-04-20 | 2021-07-27 | 合肥志功机电工程有限公司 | Tubular wall bushing |
| CN113178827B (en) * | 2021-04-20 | 2023-12-08 | 合肥志功机电工程有限公司 | Tubular wall bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170609 Address after: 212000 No. 76 Jingang Avenue, Zhenjiang New District, Jiangsu Patentee after: JIANGSU XIANGRONG ELECTRICAL CO., LTD. Address before: 212211 Jiangsu city of Zhenjiang province Yangzhong new technology park Union Road No. 5 Patentee before: Xiangrong Electric Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20181224 |