Stator PIN structure with wire blocking function

By introducing a PIN bending structure into the motor stator design, the problem of uneven winding was solved, the mold structure was simplified, and production efficiency and resistance welding effect were improved.

CN223583931UActive Publication Date: 2025-11-21NINGBO TUOPU GROUP CO LTD
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Patent Information

Application Number
CN202520368218.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2025-11-21
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

In existing motor stator designs, uneven winding leads to complex mold structures, low production efficiency, and poor resistance welding results.

Method used

The PIN bending structure includes an injection-molded semi-assembly and a PIN bending section. The PIN bending section is inserted into a slot and features bends, steps, and limit hooks to limit the enameled wire, ensuring neat winding and improving resistance welding performance.

Benefits of technology

The mold structure was simplified, production efficiency was improved, and the resistance welding effect of enameled wire was enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of motor accessories, in particular to a stator PIN structure for blocking wires, which is simple in structure and convenient to assemble. Comprising an injection molding half assembly and a PIN bend, the injection molding half assembly is provided with a slot, and the PIN bend is inserted in the slot.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of motor accessories, in particular to a stator PIN structure of line blocking. BACKGROUND

[0002] PIN wire is a varnished wire formed by cutting, stripping and pressing through a hairpin forming machine. In the motor of a new energy automobile, the stator is equivalent to a ventricle, and the PIN wire is equivalent to a vein, assisting the operation of the motor. The winding and arrangement of the wire are important concerns in the design of the motor stator. Reasonable arrangement of the wire not only makes the motor performance more stable, but also improves the manufacturing efficiency and reduces defective products. During the winding process, a convex design of a plastic part is generally used to block the varnished wire to make the wire arrangement neat. However, this structure causes the mold structure to be complex and the production efficiency to be reduced. SUMMARY

[0003] To solve the above technical problems, the utility model provides a stator PIN structure of line blocking which is simple in structure and convenient to assemble.

[0004] The stator PIN structure of line blocking of the utility model, including injection molding half assembly and PIN bending, the injection molding half assembly is equipped with the slot, and the PIN bending is inserted into the slot; after the PIN bending is inserted into the slot of the injection molding half assembly, the PIN bending cooperates with the injection molding half assembly to limit the varnished wire during winding, so that the varnished wire is forced to wind around the root of the PIN bending, and the resistance welding effect of the varnished wire is better.

[0005] Preferably, the lower part of the PIN bending is provided with a bending part, and the bending part is provided with a circular arc; the bending part of the PIN bending can limit the varnished wire during winding, and the circular arc can ensure the contact positioning of the varnished wire.

[0006] Preferably, the upper part of the PIN bending is provided with a 90-degree bending part on one side, so that a step is formed after the PIN bending is inserted into the injection molding half assembly; the step can force the wire to be clamped under the PIN bending during winding, and the wire is close to the root of the PIN bending, so that the resistance welding effect of the varnished wire is better.

[0007] Preferably, the PIN bending is provided with a limiting hook on the left and right sides; the limiting hook can increase the stability of the PIN bending after being inserted into the slot, and prevent the PIN bending from falling off.

[0008] Compared with the prior art, the stator PIN structure of line blocking of the utility model has the following beneficial effects: after the PIN bending is inserted into the slot of the injection molding half assembly, the PIN bending cooperates with the injection molding half assembly to limit the varnished wire during winding, so that the varnished wire is forced to wind around the root of the PIN bending, and the resistance welding effect of the varnished wire is better. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is the structure diagram of the installed structure;

[0010] Figure 2 is the structure diagram of the injection molding semi-assembly;

[0011] Figure 3 is the structure diagram of the PIN bending and the enameled wire connection;

[0012] Figure 4 is the structure diagram of the PIN bending;

[0013] In the drawings, 1 is an injection molding semi-assembly; 2 is a PIN bending; 3 is a slot; 4 is a step; 5 is a bending; and 6 is a limiting hook. DETAILED DESCRIPTION

[0014] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0015] As shown in Figures 1 to 4 , the injection molding semi-assembly 1 is provided with a slot 3, the PIN bending 2 is inserted into the slot 3, the lower part of the PIN bending 2 is provided with a bending 5, the bending part is provided with a circular arc, and the upper part of the PIN bending 2 is provided with a 90-degree bending, so that the PIN bending 2 forms a step 4 after being inserted into the injection molding semi-assembly 1, and the PIN bending 2 is provided with a limiting hook 6 on the left and right sides;

[0016] After the PIN bending 2 is inserted into the slot 3 of the injection molding semi-assembly 1, the bending part of the PIN bending 2 can play a limiting role when winding the enameled wire, the circular arc can ensure the contact positioning with the enameled wire, the step can force the wire to be clamped under the PIN bending 2 when winding, the wire is close to the root of the PIN bending 2, the effect of resistance welding of the enameled wire is better, and the limiting hook 6 can increase the stability of the PIN bending 2 after being inserted into the slot 3, so that falling is avoided.

[0017] As shown in Figures 1 to 4 , the PIN structure of the wire blocking stator of the present application, when working, after the PIN bending 2 is inserted into the slot 3 of the injection molding semi-assembly 1, the limiting hook 6 can increase the stability of the PIN bending 2 after being inserted into the slot 3, the bending part of the PIN bending 2 can play a limiting role when winding the enameled wire, the PIN bending 2 forms a step after being inserted into the injection molding semi-assembly 1, the step can force the wire to be clamped under the PIN bending 2 when winding, the wire is close to the root of the PIN bending 2, and the effect of resistance welding of the enameled wire is better.

[0018] The above merely is the preferred implementation manner of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A stator pin structure for wire blocking, characterized in that, It includes an injection-molded semi-assembly (1) and a PIN bend (2). The injection-molded semi-assembly (1) has a slot (3) and the PIN bend (2) is inserted into the slot (3).

2. The stator PIN structure for wire blocking as described in claim 1, characterized in that, The PIN bend (2) has a bend (5) at the bottom, and the bend is an arc.

3. The stator PIN structure for wire blocking as described in claim 1, characterized in that, The upper side of the PIN bend (2) is provided with a 90-degree bend, so that the PIN bend (2) forms a step (4) after being inserted into the injection molding semi-assembly (1).

4. The stator PIN structure for wire blocking as described in claim 1, characterized in that, Limit hooks (6) are provided on the left and right sides of the PIN bending (2).