Brassica napus tube connector lug for aluminum coil

Abstract

The utility model discloses a brass tube connector lug for an aluminum coil, which comprises a terminal main body, a tube body is integrally formed at the upper end of the terminal main body, the tube body is connected with an aluminum wire inserted into the tube body in a cold pressing manner, and the terminal main body is provided with an annular groove. And the quality problem caused by unsoldering is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of connection heads, in particular to a brass connection head for aluminum coils.

Background Art

[0002] With the rapid development of dry-type transformers in production and life applications, the number of exported transformers is increasing and aluminum coils are usually used. After the original lead-out wire of the aluminum coil is welded with a brass connection head of a copper pipe and then cold-pressed with the other end of the connection head to an aluminum wire. The process is relatively complex and there is a welding process, with the risk of welding detachment.

Content of the Utility Model

[0003] The purpose of the utility model is to solve the problems in the prior art, and propose a brass connection head for aluminum coils, which can simplify the connection operation and eliminate the quality problems caused by welding detachment.

[0004] To achieve the above purpose, the utility model proposes a brass connection head for aluminum coils, including a connection terminal body. A pipe body is integrally formed at the upper end of the connection terminal body. The pipe body is connected to an aluminum wire inserted therein by cold pressing. A ring-shaped groove is provided on the connection terminal body.

[0005] Preferably, a conical guiding surface is provided at the upper end of the inner wall of the pipe body.

[0006] Preferably, a tin plating layer is provided on the surfaces of the connection terminal body and the pipe body.

[0007] Preferably, a tin plating layer is provided on the inner surface of the pipe body.

[0008] Preferably, anti-slip lines are provided on the inner wall of the pipe body.

[0009] Preferably, the cross-section of the anti-slip lines is in the shape of an isosceles triangle.

[0010] Preferably, a threaded blind hole is provided at the lower end of the connection terminal body.

[0011] The beneficial effects of the utility model: By integrally forming a pipe body at the upper end of the connection terminal body and connecting the pipe body to an aluminum wire inserted therein by cold pressing, the aluminum wire is directly connected to the connection terminal body, eliminating the traditional use of a copper pipe connection head. Compared with the prior art, the connection operation is simple and the quality problems caused by welding detachment are eliminated.

[0012] The features and advantages of the utility model will be described in detail through embodiments in conjunction with the drawings.

Description of the Drawings

[0013] Figure 1It is a schematic structural diagram of a brass terminal for an aluminum coil of the present utility model.

[0014] In the figure: 1 - terminal body, 2 - tube body, 3 - annular groove, 4 - conical guiding surface, 5 - anti-slip pattern, 6 - threaded blind hole.

Specific Embodiment

[0015] Refer to Figure 1 , a brass terminal for an aluminum coil of the present utility model includes a terminal body 1. A tube body 2 is integrally formed at the upper end of the terminal body 1. The tube body 2 is connected to an aluminum wire inserted therein by cold pressing. An annular groove 3 is provided on the terminal body 1.

[0016] A conical guiding surface 4 is provided at the upper end of the inner wall of the tube body 2.

[0017] Tin plating layers are provided on the surfaces of the terminal body 1 and the tube body 2.

[0018] A tin plating layer is provided on the inner surface of the tube body 2.

[0019] Anti-slip patterns 5 are provided on the inner wall of the tube body 2.

[0020] The cross-section of the anti-slip pattern 5 is in the shape of an isosceles triangle.

[0021] A threaded blind hole 6 is provided at the lower end of the terminal body 1.

[0022] Working process of the present utility model:

[0023] During the working process of a brass terminal for an aluminum coil of the present utility model, by integrally forming a tube body 2 at the upper end of the terminal body 1, and connecting the tube body 2 to an aluminum wire inserted therein by cold pressing, the aluminum wire is directly connected to the terminal body 1. The traditional use of a copper tube terminal is cancelled, and a welding process between the copper tube terminal and the brass terminal is cancelled. This not only saves material costs but also reduces the welding process between the copper tube terminal and the brass terminal, eliminates quality problems caused by welding and desoldering, and improves production efficiency.

[0024] The anti-slip patterns 5 ensure the fastening force of the copper terminal on the aluminum wire. The tin plating layer improves the corrosion resistance of copper. The conical guiding surface 4 facilitates the insertion of the aluminum wire into the tube body 2.

[0025] The above embodiments are descriptions of the present utility model, not limitations thereof. Any scheme obtained by simply transforming the present utility model belongs to the protection scope of the present utility model.

Claims

1. A brass tube terminal for an aluminum coil, characterized in that: It comprises a terminal body (1), the upper end of which is integrally formed with a tube body (2), the tube body (2) being cold-pressed and connected to an aluminum wire inserted therein, and an annular groove (3) being provided on the terminal body (1).

2. The brass tube terminal for aluminum coil according to claim 1, characterized in that: A conical guide surface (4) is provided at the upper end of the inner wall of the tube body (2).

3. The brass tube terminal for aluminum coil according to claim 1, characterized in that: The surfaces of the terminal body (1) and the tube body (2) are provided with a tin-plated layer.

4. The brass tube terminal for aluminum coil according to claim 1, characterized in that: The inner surface of the tube body (2) is provided with a tin-plated layer.

5. The brass tube terminal for aluminum coil according to claim 1, characterized in that: The inner wall of the tube body (2) is provided with anti-slip grooves (5).

6. A brass tube terminal for an aluminum coil as claimed in claim 5, characterized in that: The cross section of the anti-slip pattern (5) is in the shape of an isosceles triangle.

7. A brass tube terminal for an aluminum coil according to any one of claims 1 to 6, characterized in that: A threaded blind hole (6) is provided at the lower end of the terminal body (1).

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