CN214849087U - Copper-aluminum transition wire clamp for low-voltage service wire - Google Patents
Copper-aluminum transition wire clamp for low-voltage service wire Download PDFInfo
- Publication number
- CN214849087U CN214849087U CN202121436553.3U CN202121436553U CN214849087U CN 214849087 U CN214849087 U CN 214849087U CN 202121436553 U CN202121436553 U CN 202121436553U CN 214849087 U CN214849087 U CN 214849087U
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- Prior art keywords
- aluminum
- copper
- plate
- low
- pressing block
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- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 230000007704 transition Effects 0.000 title claims abstract description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 103
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 103
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910052802 copper Inorganic materials 0.000 claims abstract description 46
- 239000010949 copper Substances 0.000 claims abstract description 46
- 238000003825 pressing Methods 0.000 claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 238000005219 brazing Methods 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 abstract description 21
- 239000004020 conductor Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 3
- 239000011162 core material Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
Abstract
The utility model discloses a copper-aluminum transition wire clamp of a low-voltage service wire, which comprises an aluminum plate, an aluminum pressing block and a copper plate; the aluminum plate is divided into a left aluminum plate half part and a right aluminum plate half part, the aluminum pressing block is installed on the left aluminum plate half part, and the copper plate is installed on the right aluminum plate half part to form a copper-aluminum composite plate; a first line groove is formed in the left half portion of the aluminum plate, and a second line groove is formed in the position, opposite to the first line groove, of the aluminum pressing block. The embodiment of the utility model provides a low pressure service conductor copper aluminium transition fastener installs the copper on aluminum plate, and copper aluminium contact surface is big, reducible problem of generating heat that arouses because of the contact surface undersize.
Description
Technical Field
The utility model belongs to the technical field of the wiring instrument, concretely relates to low pressure service conductor copper aluminium transition fastener.
Background
The copper-aluminum transition wire clamp is widely applied to the connecting point of the power distribution overhead line, and the copper-aluminum transition wire clamp faces the test of the operation environment constantly because the overhead line is exposed outdoors for a long time. In the place where copper and aluminum are connected in the electric power operation, in order to avoid the electrochemical oxidation reaction after the direct contact of the copper and the aluminum, the students invented the copper-aluminum transition wire clamp. At present, the outlet terminals of common low-voltage electrical equipment are 2 types of copper and aluminum, but the outlet terminals are mostly steel-cored aluminum stranded wires or aluminum stranded wires. For example, at the connecting point of a cable outgoing line and a low-voltage line of a transformer on a distribution post, the cable outgoing line is made of a copper core material, a steel core aluminum stranded wire is adopted for a low-voltage overhead line, and a copper-aluminum transition wire clamp is used at the connecting position of the two.
However, in recent years, faults caused by the copper-aluminum transition wire clamp occur, and the fault reason of the existing copper-aluminum transition wire clamp is that the wire clamp is broken at the copper-aluminum connection part basically. The broken copper-aluminum transition wire clamps are all produced by adopting a flash welding production process. The process is to melt one end of each of the copper plate and the aluminum plate at high temperature and then butt-joint the copper plate and the aluminum plate for molding, and because the thermal expansion coefficients of the copper and the aluminum are greatly different, gaps are easily generated on the copper and aluminum contact surface in heavy load operation, so that the risk of wire clamp fracture is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a low pressure service conductor copper aluminium transition fastener adopts the technique of brazing to solve the easy cracked problem of copper aluminium transition fastener among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a copper-aluminum transition wire clamp for a low-voltage service wire comprises an aluminum plate, an aluminum pressing block and a copper plate; the aluminum plate is divided into a left aluminum plate half part and a right aluminum plate half part, the aluminum pressing block is installed on the left aluminum plate half part, and the copper plate is installed on the right aluminum plate half part to form a copper-aluminum composite plate;
a first line groove is formed in the left half portion of the aluminum plate, and a second line groove is formed in the position, opposite to the first line groove, of the aluminum pressing block.
Further, the aluminum pressing block is installed on the left half portion of the aluminum plate through a first bolt and nut assembly.
Furthermore, first bolt-nut subassembly includes bolt and nut, be provided with the mounting hole on the aluminium sheet left half and the aluminium briquetting respectively, the bolt passes the mounting hole on the aluminium sheet left half and the aluminium briquetting and use the nut fastening.
Furthermore, a first gasket is arranged at the fastening position of the aluminum pressing block and the nut.
Further, the aluminum plate right half and the copper plate are connected in a brazing mode.
Further, be provided with the bolt hole on the copper aluminium composite sheet, the copper upside is provided with the second gasket, links together copper aluminium composite sheet and second gasket through second bolt nut subassembly.
Furthermore, the aluminum pressing block is in a shape that the top is upwards convex and the bottom is inwards concave.
Furthermore, a service wire installation copper terminal is installed between the copper plate and the second gasket.
Furthermore, a low-voltage aluminum wire is arranged between the first line groove and the second line groove.
Compared with the prior art, the utility model discloses following technological effect has:
(A) the copper plate is arranged on the aluminum plate, the copper-aluminum contact surface is large, and the heating problem caused by the over-small contact surface can be reduced;
(B the embodiment of the utility model provides a low pressure service conductor copper aluminium transition fastener, the main part material is aluminium, is copper material above the contact surface, has effectively solved the easy cracked problem of flash welding type copper aluminium wire clamp in copper aluminium junction;
(C) the copper-aluminum transition wire clamp for the low-voltage service wire provided by the embodiment of the utility model has the characteristics of low resistance, small temperature rise, high mechanical strength and the like;
(D) the embodiment of the utility model provides a low pressure service conductor copper aluminium transition fastener, simple to operate, simple structure, it is with low costs, can realize large-scale production.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a copper-aluminum transition wire clamp for a low-voltage service wire of the embodiment of the present invention.
Fig. 2 is a schematic view of a overlooking structure of a copper-aluminum transition wire clamp of a low-voltage service wire of the embodiment of the utility model.
Fig. 3 is a schematic side view of the copper-aluminum transition wire clamp for the low-voltage service wire of the embodiment of the present invention.
Wherein: 1-a first bolt and nut component, 2-a first gasket, 3-an aluminum pressing block, 4-a first line groove, 5-a left half part of an aluminum plate, 6-a second bolt and nut component, 7-a second gasket, 8-a copper plate, 9-a right half part of the aluminum plate, and 10-a second line groove.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.
The embodiment of the utility model provides a low pressure service conductor copper aluminium transition fastener can safe and reliable ground with service conductor and low pressure line connection, guarantees the high-efficient steady operation of electric power.
As shown in fig. 1-3, a copper-aluminum transition wire clamp for a low-voltage service wire comprises an aluminum plate, an aluminum pressing block 3 and a copper plate 8; the aluminum plate is divided into an aluminum plate left half part 5 and an aluminum plate right half part 9, the aluminum pressing block 3 is installed on the aluminum plate left half part 5, the copper plate 8 is installed on the aluminum plate right half part 9 to form a copper-aluminum composite plate, and the contact surface between the aluminum plate right half part 9 and the copper plate 8 is tightly connected in a brazing mode; a first line groove 4 is formed in the left half portion 5 of the aluminum plate, a second line groove 10 is formed in the position, opposite to the first line groove 4, of the aluminum pressing block 3, and a low-voltage aluminum wire is installed between the first line groove 4 and the second line groove 10. Two groups of bolt holes are formed in the copper-aluminum composite plate, a second gasket 7 is arranged on the upper side of the copper plate 8, the copper-aluminum composite plate and the second gasket 7 are connected together through two groups of second bolt-nut assemblies 6, and the aluminum pressing block 3 is installed on the left half part 5 of the aluminum plate through the first bolt-nut assembly 1; and a service wire mounting copper terminal is arranged between the copper plate 8 and the second gasket 7.
In this embodiment, the first bolt-nut assembly 1 includes a bolt and a nut, the left half portion 5 of the aluminum plate and the aluminum pressing block 3 are respectively provided with a mounting hole, the bolt passes through the mounting holes on the left half portion 5 of the aluminum plate and the aluminum pressing block 3 and is fastened by the nut, and the fastening portion of the aluminum pressing block 3 and the nut is provided with the first gasket 2. The first gasket 2 and the second gasket 7 are both corrosion-resistant alloy gaskets.
In a preferred embodiment of the present invention, the aluminum pressing block 3 is a shape with the top portion protruding upward and the bottom portion recessed inward, so that the crimping is more compact and saves material.
The utility model discloses low pressure service conductor copper aluminium transition fastener's installation as follows:
lay the low pressure aluminium wire to the first circuit recess 4 of the half 5 on the left of the aluminum plate, aim at aluminium wire with second circuit recess 10 and place, use first bolt-nut subassembly 1 to fix firmly the aluminium wire. The service wire mounting copper terminal is placed between the copper plate 8 and the second gasket 7, and the service wire is fixed firmly by using the second bolt-and-nut assembly 6.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (9)
1. A copper-aluminum transition wire clamp for a low-voltage service wire is characterized by comprising an aluminum plate, an aluminum pressing block (3) and a copper plate (8); the aluminum plate is divided into an aluminum plate left half part (5) and an aluminum plate right half part (9), the aluminum pressing block (3) is installed on the aluminum plate left half part (5), and the copper plate (8) is installed on the aluminum plate right half part (9) to form a copper-aluminum composite plate;
a first line groove (4) is formed in the left half portion (5) of the aluminum plate, and a second line groove (10) is formed in the position, opposite to the first line groove (4), of the aluminum pressing block (3).
2. The low voltage service wire copper aluminum transition clamp as claimed in claim 1, wherein the aluminum pressing block (3) is mounted on the aluminum plate left half (5) by a first bolt and nut assembly (1).
3. The low-voltage service wire copper-aluminum transition clamp as claimed in claim 2, wherein the first bolt-nut assembly (1) comprises a bolt and a nut, the left half part (5) of the aluminum plate and the aluminum pressing block (3) are respectively provided with a mounting hole, and the bolt passes through the mounting holes on the left half part (5) of the aluminum plate and the aluminum pressing block (3) and is fastened by the nut.
4. The low-voltage service wire copper-aluminum transition wire clamp as claimed in claim 3, wherein a first gasket (2) is arranged at the fastening position of the aluminum pressing block (3) and the nut.
5. The low-voltage service wire copper-aluminum transition clamp as claimed in claim 1, wherein the aluminum plate right half part (9) and the copper plate (8) are connected by brazing.
6. The low-voltage service wire copper-aluminum transition wire clamp as claimed in claim 1, wherein the copper-aluminum composite plate is provided with a bolt hole, the upper side of the copper plate (8) is provided with a second gasket (7), and the copper-aluminum composite plate and the second gasket (7) are connected together through a second bolt-nut assembly (6).
7. The low-voltage service wire copper-aluminum transition wire clamp as claimed in claim 1, wherein the aluminum pressing block (3) is in a shape with an upward convex top and an inward concave bottom.
8. The low voltage service wire copper aluminum transition clamp of claim 6, wherein a service wire mounting copper terminal is mounted between the copper plate (8) and the second gasket (7).
9. The low voltage service wire copper aluminum transition clamp as claimed in claim 1, wherein a low voltage aluminum wire is installed between the first line groove (4) and the second line groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121436553.3U CN214849087U (en) | 2021-06-25 | 2021-06-25 | Copper-aluminum transition wire clamp for low-voltage service wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121436553.3U CN214849087U (en) | 2021-06-25 | 2021-06-25 | Copper-aluminum transition wire clamp for low-voltage service wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214849087U true CN214849087U (en) | 2021-11-23 |
Family
ID=78810398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121436553.3U Active CN214849087U (en) | 2021-06-25 | 2021-06-25 | Copper-aluminum transition wire clamp for low-voltage service wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214849087U (en) |
-
2021
- 2021-06-25 CN CN202121436553.3U patent/CN214849087U/en active Active
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