CN104934917A - Special-shaped bus-bar expansion joint - Google Patents
Special-shaped bus-bar expansion joint Download PDFInfo
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- CN104934917A CN104934917A CN201510375140.1A CN201510375140A CN104934917A CN 104934917 A CN104934917 A CN 104934917A CN 201510375140 A CN201510375140 A CN 201510375140A CN 104934917 A CN104934917 A CN 104934917A
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- special
- bus
- expansion joint
- fixture
- bar
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Abstract
The invention discloses a special-shaped bus-bar expansion joint which comprises an arc-shaped connector and a copper fixing piece I and a copper fixing piece II arranged at two ends of the arc-shaped connector, wherein the fixing piece I is square and the fixing piece II is of a parallelogram. The special-shaped bus-bar expansion joint is simple in structure, reasonable in design and convenient to use, the time and labor are saved, and the stress due to lapping of cable heads and a bus-bar can be effectively reduced, so that the bus-bar is ensured to run safely, the bus-bar processing efficiency is improved, and the labor cost is reduced.
Description
Technical field
The present invention relates to the connection gold utensil in electric power system, specifically a kind of special-shaped bus expansion joint.
Background technology
Ring main unit is the electric equipment that high voltage switchgear is contained in assembled compartment ring network power supplying units in metal cabinet, has the advantages such as structure is simple, volume is little, price is low, power supply safety.In the power distribution station being widely used in the load centers such as Urban Residential District, skyscraper, large public building, factory and enterprise and box-type substation.The outlet of ring main unit is generally based on power cable, due to the spatial limitation of ring main unit, the restriction of manufacturing cable head is subject to during cable bond, existing expansion joint is the mode that straight line connects substantially, lap joint stress is larger, and joint bad connection will make joint temperature rise too high, directly affect the safety of cable, reliability service.
Summary of the invention
For solving the problems of the technologies described above, the invention provides the special-shaped bus expansion joint that a kind of structure is simple, easy to use.
The technical solution used in the present invention is: a kind of special-shaped bus expansion joint, and comprise arc connector and the copper fixture one and the copper fixture two that are arranged on arc connector two ends, described fixture one is square, and fixture two is parallelogram.
Preferably, described fixture one, the edge lengths that fixture two contacts with arc connector is identical.
Advantage of the present invention is: structure is simple, reasonable in design, easy to use, time and labour saving.Cable end in ring main unit is connected by special-shaped bus expansion joint with bus, effectively can reduces the stress that cable end and busbar shiplap joint are subject to, thus ensure that bus safe operation, improve the efficiency of bus processing, reduce cost of labor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is mounting structure schematic diagram of the present invention;
In figure, 1. fixture one, 2. fixture two, 3. arc connector, 4. bus, 5. cable end, 6. cable tri-finger stall.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is further described, but protection scope of the present invention is not limited thereto.
As shown in Figure 1, a kind of special-shaped bus expansion joint, comprise arc connector and the copper fixture 1 and the copper fixture 22 that are arranged on arc connector 3 two ends, fixture 1 is square, and fixture 22 is parallelogram.The length of side of fixture 1, wide and arc connector 3 length of straight flange of fixture 22 is identical.
The cable be mainly used in ring main unit is connected with bus, as shown in Figure 2, during use, is fixed with special-shaped bus expansion joint below bus 4, and cable end 5 is gone between and to be connected with bus 4 by special-shaped bus expansion joint.The square copper fixture 1 of special-shaped bus expansion joint is connected with bus 4, and the minor face of parallelogram copper fixture 22 is connected with cable end 5.
It is simple, easy to use that the present invention has structure, the advantages such as time and labour saving, this special-shaped bus expansion joint changes the mode that original expansion joint only has straight line to connect, take one end square, opposite side is the structure of parallelogram, thus eliminating the stress of bus and cable joint, the cable end after installation is reached, and horizontal flat heavily fortified point is straight, neat appearance.
Claims (2)
1. a special-shaped bus expansion joint, is characterized in that, comprise arc connector and the copper fixture one and the copper fixture two that are arranged on arc connector two ends, described fixture one is square, and fixture two is parallelogram.
2. a kind of special-shaped bus expansion joint according to claim 1, is characterized in that, described fixture one, and the edge lengths that fixture two contacts with arc connector is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375140.1A CN104934917A (en) | 2015-07-01 | 2015-07-01 | Special-shaped bus-bar expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375140.1A CN104934917A (en) | 2015-07-01 | 2015-07-01 | Special-shaped bus-bar expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104934917A true CN104934917A (en) | 2015-09-23 |
Family
ID=54121954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510375140.1A Pending CN104934917A (en) | 2015-07-01 | 2015-07-01 | Special-shaped bus-bar expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104934917A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05316626A (en) * | 1992-05-11 | 1993-11-26 | Mitsubishi Electric Corp | Expansion and compression joint for gas insulation device |
| CN203026873U (en) * | 2013-01-17 | 2013-06-26 | 上元电力科技有限公司 | Copper and aluminum bus bar expansion joint |
| CN103560458A (en) * | 2013-09-29 | 2014-02-05 | 江苏金华厦电气有限公司 | Flexibility stress low-voltage bus duct |
| CN203871495U (en) * | 2014-05-29 | 2014-10-08 | 江苏宇龙冶金电炉设备有限公司 | Copper-skin compensator for steel ladle arc furnace |
| CN204793934U (en) * | 2015-07-01 | 2015-11-18 | 国家电网公司 | Dysmorphism bus -bar expansion joint |
-
2015
- 2015-07-01 CN CN201510375140.1A patent/CN104934917A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05316626A (en) * | 1992-05-11 | 1993-11-26 | Mitsubishi Electric Corp | Expansion and compression joint for gas insulation device |
| CN203026873U (en) * | 2013-01-17 | 2013-06-26 | 上元电力科技有限公司 | Copper and aluminum bus bar expansion joint |
| CN103560458A (en) * | 2013-09-29 | 2014-02-05 | 江苏金华厦电气有限公司 | Flexibility stress low-voltage bus duct |
| CN203871495U (en) * | 2014-05-29 | 2014-10-08 | 江苏宇龙冶金电炉设备有限公司 | Copper-skin compensator for steel ladle arc furnace |
| CN204793934U (en) * | 2015-07-01 | 2015-11-18 | 国家电网公司 | Dysmorphism bus -bar expansion joint |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150923 |