Copper-aluminum joint

By designing copper-aluminum joints, the friction between the limit rod and the trapezoidal clamping block is used to achieve stable docking between the copper-aluminum wire, which solves the problem of easy oxidation and burnout between the copper-aluminum wire and improves the stability of the connection.

CN223066547UActive Publication Date: 2025-07-04CHANGZHOUWUJINSUNAN REFRIGERATION EQUIP CO LTD
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Patent Information

Application Number
CN202422197548.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-09
Publication Date
2025-07-04
Estimated Expiration
2034-09-09

AI Technical Summary

Technical Problem

Existing copper wires are prone to oxidation and burnout when they are connected to aluminum wires, and have low stability.

Method used

The copper-aluminum joint design is adopted, including a symmetrically fixed first joint and second joint, with docking grooves and positioning components, and the limiting rod cooperates with the trapezoidal clamping block to achieve docking stability through friction and avoid winding oxidation.

Benefits of technology

Improve the stability of the connection between copper wire and aluminum wire, avoid oxidation and burnout, and enhance the reliability of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

A copper-aluminum connector comprises a first connector body and a second connector body, the first connector body and the second connector body are symmetrically fixed, butt joint grooves are formed in the first connector body and the second connector body respectively, positioning assemblies are arranged on the first connector body and the second connector body respectively, each positioning assembly comprises a limiting rod and a trapezoidal clamping block, and the trapezoidal clamping blocks are in sliding fit with the butt joint grooves. The limiting rod penetrates through the first connector and the butt joint groove and is in threaded connection with the first connector and the butt joint groove, the bottom end of the limiting rod makes contact with the trapezoidal clamping block and can limit the trapezoidal clamping block, and through the arranged first connector and second connector, a copper wire and an aluminum wire do not need to be wound; the butt joint of the copper wire and the aluminum wire is not easy to oxidize and burn out, and the stability is high.
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Description

Technical Field

[0001] The utility model relates to the technical field of wire joints, in particular to a copper-aluminum joint. Background Art

[0002] Copper wires and aluminum wires need to be butt-jointed in some specific situations. The existing butt-jointing methods are mostly to directly wrap the copper wires and the aluminum wires. This method easily causes oxidation and burning of the joints between the copper wires and the aluminum wires, and has low stability. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a copper-aluminum joint.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a copper-aluminum joint, comprising a first joint and a second joint, the first joint and the second joint are symmetrically fixed, the first joint and the second joint are both provided with a docking groove, and are both provided with a positioning assembly, the positioning assembly comprises a limit rod and a trapezoidal clamping block, the trapezoidal clamping block is slidably matched with the docking groove, the limit rod passes through the first joint and the docking groove and is threadedly connected to the first joint and the docking groove respectively, the bottom end of the limit rod contacts the trapezoidal clamping block and can limit the trapezoidal clamping block.

[0007] In order to facilitate the operation of the limiting rod, the utility model is improved in that a toggle block is provided on the top of the limiting rod.

[0008] Furthermore, the improvement of the utility model is that the docking groove is rectangular.

[0009] In order to improve the stability of the trapezoidal clamping block during advancement, the utility model has the following improvements: two guide grooves are symmetrically arranged on the top of the docking groove, and two guide blocks that slide in cooperation with the guide grooves are symmetrically arranged on the top of the trapezoidal clamping block.

[0010] Furthermore, the improvement of the utility model is that the copper-aluminum joint also includes a heat shrink tube, the first joint and the second joint both penetrate the heat shrink tube, and the heat shrink tube is provided with a through hole penetrated by the limiting rod.

[0011] Furthermore, the present invention is improved in that an annular groove is provided at the joint between the first joint and the second joint, and a rubber ring for limiting the position of the heat shrink tube is provided at the annular groove.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a copper-aluminum joint with the following beneficial effects:

[0014] The copper-aluminum joint has a first joint and a second joint, so the copper wire and the aluminum wire do not need to be wound together, and the joint between the copper wire and the aluminum wire is not easily oxidized and burned, and has high stability.

[0015] Push the trapezoidal clamping block. Since the trapezoidal clamping block is trapezoidal in shape, it can clamp and limit the butt ends of the copper wire and the aluminum wire. At this time, rotate the limit rod so that the bottom end of the limit rod provides a pressure to the trapezoidal clamping block. The friction between the limit rod and the trapezoidal clamping block can limit the trapezoidal clamping block in the butt groove, thereby improving the stability of the copper wire and the aluminum wire after butt connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 The main view;

[0018] Figure 3 It is a schematic diagram of the internal structure of the docking groove in the utility model;

[0019] In the figure: 1, first joint; 2, docking groove; 3, trapezoidal clamping block; 4, guide block; 5, guide groove; 6, annular groove; 7, limit rod; 8, heat shrink tube; 9, second joint. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1-3 The utility model is a copper-aluminum joint, comprising a first joint 1 and a second joint 9, wherein the first joint 1 and the second joint 9 are symmetrically fixed, and the first joint 1 and the second joint 9 are both provided with a docking groove 2, and are both provided with a positioning assembly, wherein the positioning assembly comprises a limiting rod 7 and a trapezoidal clamping block 3, wherein the trapezoidal clamping block 3 is slidably matched with the docking groove 2, the limiting rod 7 penetrates the first joint 1 and the docking groove 2 and is respectively threadedly connected with the first joint 1 and the docking groove 2, and the bottom end of the limiting rod 7 contacts the trapezoidal clamping block 3 and can limit the trapezoidal clamping block 3;

[0022] In this embodiment, the butt ends of the copper wire and the aluminum wire are respectively inserted into the designated butt grooves 2, the materials of the first joint 1 and the second joint 9 are copper and aluminum respectively, and then the trapezoidal clamping block 3 is pushed. Since the trapezoidal clamping block 3 is trapezoidal, the trapezoidal clamping block 3 can clamp and limit the butt ends of the copper wire and the aluminum wire. At this time, the limit rod 7 is rotated so that the bottom end of the limit rod 7 provides a pressure to the trapezoidal clamping block 3. Through the friction between the limit rod 7 and the trapezoidal clamping block 3, the trapezoidal clamping block 3 can be limited in the butt groove 2, thereby improving the stability of the copper wire and the aluminum wire after butt joint;

[0023] Furthermore, by providing the first joint 1 and the second joint 9, the copper wire and the aluminum wire do not need to be wound together, and the joint between the copper wire and the aluminum wire is not easily oxidized and burned, so the stability is high.

[0024] In this embodiment, a toggle block is provided on the top of the limiting rod 7 to facilitate the operation of the limiting rod 7 .

[0025] Furthermore, the docking groove 2 is rectangular.

[0026] In this embodiment, two guide grooves 5 are symmetrically arranged on the top of the docking groove 2, and two guide blocks 4 that slide with the guide grooves 5 are symmetrically arranged on the top of the trapezoidal clamping block 3. When the trapezoidal clamping block 3 is being pushed, the guide block 4 will slide in the guide groove 5, which can improve the stability of the trapezoidal clamping block 3 during advancement.

[0027] In this embodiment, the copper-aluminum joint also includes a heat shrink tube 8, the first joint 1 and the second joint 9 both pass through the heat shrink tube 8, and the heat shrink tube 8 is provided with a through hole passed through by the limiting rod 7. The heat shrink tube 8 can protect the first joint 1 and the second joint 9.

[0028] Furthermore, an annular groove 6 is provided at the joint between the first joint 1 and the second joint 9, and a rubber ring for limiting the heat shrink tube 8 is provided at the annular groove 6. The heat shrink tube 8 can be limited on the first joint 1 and the second joint 9 by the provided elastic rubber ring, so that the heat shrink tube 8 is easy to assemble.

[0029] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model.

Claims

1. A copper-aluminum joint, characterized in that: The invention comprises a first joint (1) and a second joint (9), wherein the first joint (1) and the second joint (9) are symmetrically fixed, and the first joint (1) and the second joint (9) are both provided with a docking groove (2), and are both provided with a positioning assembly, wherein the positioning assembly comprises a limiting rod (7) and a trapezoidal clamping block (3), the trapezoidal clamping block (3) and the docking groove (2) are slidably matched, the limiting rod (7) passes through the first joint (1) and the docking groove (2) and is respectively threadedly connected to the first joint (1) and the docking groove (2), and the bottom end of the limiting rod (7) contacts the trapezoidal clamping block (3) and can limit the trapezoidal clamping block (3).

2. The copper-aluminum joint according to claim 1, characterized in that: A toggle block is provided on the top of the limiting rod (7).

3. The copper-aluminum joint according to claim 2, characterized in that: The docking groove (2) is rectangular.

4. The copper-aluminum joint according to claim 3, characterized in that: Two guide grooves (5) are symmetrically arranged on the top of the docking groove (2), and two guide blocks (4) that are slidably matched with the guide grooves (5) are symmetrically arranged on the top of the trapezoidal clamping block (3).

5. A copper-aluminum joint according to claim 4, characterized in that: The copper-aluminum joint also includes a heat shrink tube (8), the first joint (1) and the second joint (9) both pass through the heat shrink tube (8), and the heat shrink tube (8) is provided with a through hole passed through by the limiting rod (7).

6. The copper-aluminum joint according to claim 5, characterized in that: An annular groove (6) is provided at the joint between the first joint (1) and the second joint (9), and a rubber ring for limiting the position of the heat shrink tube (8) is provided at the annular groove (6).