CN217158664U - Heavy-current copper-aluminum bar - Google Patents
Heavy-current copper-aluminum bar Download PDFInfo
- Publication number
- CN217158664U CN217158664U CN202220923857.0U CN202220923857U CN217158664U CN 217158664 U CN217158664 U CN 217158664U CN 202220923857 U CN202220923857 U CN 202220923857U CN 217158664 U CN217158664 U CN 217158664U
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- aluminum bar
- copper
- aluminum
- bar body
- wiring terminal
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Abstract
The utility model discloses a high-current copper aluminum bar with simple wiring process, good conductivity and low cost. The technical scheme adopted comprises the following steps: the aluminum bar body and the copper wiring terminal connected to the end part of the aluminum bar body are connected, one end of the copper wiring terminal is provided with a flat wiring part, the other end of the copper wiring terminal is provided with a cylindrical wire pressing part, an external thread is arranged at the end part of the aluminum bar body, an internal thread is arranged in the wire pressing part of the copper wiring terminal, and the end part of the aluminum bar body is connected with the internal thread of the wire pressing part through the external thread and then is fixed in a compression joint mode. The advantages are as follows: after being connected through threads, the aluminum bar and the copper wiring terminal are connected in a crimping mode, the surface material of the aluminum bar is embedded into the copper wiring terminal after the aluminum bar and the copper wiring terminal are connected in a crimping mode, so that very tight connection is achieved, and connection strength and conductivity are improved.
Description
Technical Field
The utility model relates to a copper aluminium bar that conduction heavy current was used.
Background
In the conventional connection of the aluminum bar and the copper terminal, a crimping process is generally adopted to fix the end part of the aluminum bar in the crimping part of the copper terminal. The disadvantages of using this connection are: the connection between the aluminum bar and the copper connecting terminal is not tight enough, and when a large current is conducted, the connection part is easy to generate heat. Aiming at the problems, the existing connection of the large-current copper aluminum bar is realized by connecting the copper aluminum bar together in a friction welding mode or an ultrasonic welding mode and the like, but the existing friction welding process and the existing ultrasonic welding process have high requirements on equipment, the welding process is complex, the energy consumption of the equipment is high, the process yield is low, the requirement on raw material incoming materials is high, and further the cost of the whole production is high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a big current copper aluminium bar that wiring technology is simple, electric conductivity is good and with low costs.
In order to solve the above problem, the utility model discloses a technical scheme include: aluminium bar body and connection the copper binding post of this end of body of aluminium bar, copper binding post one end has the wiring portion of platykurtic, the other end has columniform line ball portion, its characterized in that: the end part of the aluminum bar body is provided with an external thread, an internal thread is arranged in the wire pressing part of the copper wiring terminal, and the end part of the aluminum bar body is connected with the internal thread of the wire pressing part through the external thread and then is fixed in a compression joint mode.
The high-current copper aluminum bar is characterized in that: and the external thread of the aluminum bar body is coated with conductive paste.
The high-current copper aluminum bar is characterized in that: the pitch H of the external thread at the end part of the aluminum bar body is 1-2 mm.
The high-current copper aluminum bar is characterized in that: the pitch H of the external thread at the end part of the aluminum bar body is 1.5 mm.
The high-current copper aluminum bar is characterized in that: and the wiring part is provided with a screw hole.
The high-current copper aluminum bar is characterized in that: the crimping part is crimped into a hexagonal structure through a clamp.
The high-current copper aluminum bar is characterized in that: and an insulating layer is arranged on the surface of the aluminum bar body.
The high-current copper aluminum bar is characterized in that: and a metal shielding layer is arranged on the surface of the insulating layer.
The utility model discloses a heavy current copper aluminium stick advantage as follows: after being connected through threads, the aluminum bar and the copper wiring terminal are connected in a crimping mode, the surface material of the aluminum bar is embedded into the copper wiring terminal after the aluminum bar and the copper wiring terminal are connected in a crimping mode, so that very tight connection is achieved, and connection strength and conductivity are improved. In addition, the production efficiency is high, the cost is low, and the connection technology of friction welding or ultrasonic welding and the like is adopted on the conductivity and the connection strength.
The present invention will be further explained with reference to the drawings attached to the specification.
Drawings
FIG. 1 is a schematic structural view of a high-current Cu-Al bar according to the present invention;
FIG. 2 is a cross-sectional view of a high current Cu-Al bar according to the present invention;
fig. 3 is a partial enlarged view of the aluminum bar body and the copper wiring terminal of the present invention.
Detailed Description
Referring to fig. 1-3, the present invention relates to a high current copper aluminum bar, which comprises an aluminum bar body 1 and a copper wiring terminal 2 connected to the end of the aluminum bar body 1. One end of the copper wiring terminal 2 is provided with a flat wiring part 3, and the other end of the copper wiring terminal 2 is provided with a cylindrical wire pressing part 4. The end part of the aluminum bar body 1 is provided with an external thread 5, an internal thread 6 is arranged in the wire pressing part 4 of the copper wiring terminal 2, and the end part of the aluminum bar body 1 is connected with the internal thread 6 of the wire pressing part 4 through the external thread 5 in a threaded manner and then is fixed in a crimping manner by using a crimping tool. Ideally, the crimping part 4 is crimped into a hexagonal structure through a clamp, so that the connection between the aluminum bar body 1 and the copper wiring terminal 2 is in an optimal tight state while the connection strength is ensured.
Preferably, the external thread 5 of the aluminum bar body 1 is coated with conductive paste so as to further improve the connection tightness and the conductivity between the aluminum bar body 1 and the copper wiring terminal 2.
Preferably, the external thread 5 at the end of the aluminum bar body 1 is a fine thread, the pitch H of the thread is 1-2mm, most preferably 1.5mm, and the internal thread 6 of the crimping part 4 is adapted to the fine thread. To ensure the tightness of the connection.
Preferably, the wiring portion 3 is provided with a screw hole 7, and a bolt is inserted into the screw hole 7 to facilitate wiring.
Preferably, the surface of the aluminum bar body 1 is provided with an insulating layer 8, and the surface of the insulating layer 8 is provided with a metal shielding layer 9, so that the aluminum bar body 1 has insulating and shielding effects, and the use safety is improved.
In the above, the present invention is not limited to any form, and although the present invention has been disclosed in the above preferred embodiments, it is not limited to the present invention, and any skilled person familiar with the art can make some changes or modifications to equivalent embodiments without departing from the technical scope of the present invention, but all the technical matters of the present invention do not depart from the technical scope of the present invention.
Claims (8)
1. The utility model provides a big current copper aluminium bar, includes aluminium bar body (1) and connects copper binding post (2) of aluminium bar body (1) tip, copper binding post (2) one end has wiring portion (3) of platykurtic, the other end has columniform crimping portion (4), its characterized in that: the end part of the aluminum bar body (1) is provided with an external thread (5), an internal thread (6) is arranged in the wire pressing part (4) of the copper wiring terminal (2), and the end part of the aluminum bar body (1) is in threaded connection with the internal thread (6) of the wire pressing part (4) through the external thread (5) and then is fixed in a crimping mode.
2. The high current aluminum copper bar of claim 1, wherein: and the external thread (5) of the aluminum bar body (1) is coated with conductive paste.
3. The high current aluminum copper bar of claim 1, wherein: the tooth pitch H of the external thread (5) at the end part of the aluminum bar body (1) is 1-2 mm.
4. The high current aluminum copper bar of claim 3, wherein: the pitch H of the external thread (5) at the end part of the aluminum bar body (1) is 1.5 mm.
5. The high current aluminum copper bar of claim 1, wherein: and a screw hole (7) is formed in the wiring part (3).
6. The high current aluminum copper bar of claim 1, wherein: the crimping parts (4) are crimped into a hexagonal structure through a clamp.
7. The high current aluminum copper bar of claim 1, wherein: the surface of the aluminum bar body (1) is provided with an insulating layer (8).
8. The high current aluminum copper bar of claim 7, wherein: and a metal shielding layer (9) is arranged on the surface of the insulating layer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220923857.0U CN217158664U (en) | 2022-04-21 | 2022-04-21 | Heavy-current copper-aluminum bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220923857.0U CN217158664U (en) | 2022-04-21 | 2022-04-21 | Heavy-current copper-aluminum bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217158664U true CN217158664U (en) | 2022-08-09 |
Family
ID=82662603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220923857.0U Active CN217158664U (en) | 2022-04-21 | 2022-04-21 | Heavy-current copper-aluminum bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217158664U (en) |
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2022
- 2022-04-21 CN CN202220923857.0U patent/CN217158664U/en active Active
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