A motor stator insulation frame assembly

Abstract

This invention discloses a motor stator insulation frame assembly, including a metal retaining sleeve and an insulation frame. The inner wall of the metal retaining sleeve has a connecting seat, and the outer wall of the metal retaining sleeve has a groove. A metal reinforcing chip is located at the upper center of the connecting seat. Limiting slots are located on both sides of the inner wall of the metal retaining sleeve at the connecting seat. In this invention, the insulation frame is connected to the metal reinforcing chip within the inner ring of the metal retaining sleeve via a U-shaped assembly groove. The U-shaped assembly groove clamps the metal reinforcing chip at its center, encasing it within the groove and increasing its strength from the center. This results in a more robust and deformation-resistant insulation frame, increasing the overall structural strength and preventing breakage during assembly.

Description

Technical Field

[0001] This invention relates to the field of motor stator manufacturing, specifically to a motor stator insulation frame assembly. Background Technology

[0002] The stator is the stationary part of the electric motor. It consists of three parts: the stator core, the stator windings, and the frame. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by magnetic lines of force in the rotating magnetic field to generate current. The non-rotating part of a brushed or brushless motor is the shaft of a hub-type brushed or brushless gearless motor. This type of motor can be called an internal stator motor.

[0003] The stator insulation frame of motors is generally made of plastic, which is relatively weak. If the assembly process is not handled properly, the frame may break and need to be reworked and remade, increasing costs and reducing work efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a motor stator insulation frame assembly to solve the problems mentioned in the background art, where motor stator insulation frames are generally made of plastic, which has relatively weak strength. If improper operation is not performed during assembly, the frame will break and need to be reworked, increasing costs and reducing work efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a motor stator insulation frame assembly, comprising a metal retaining sleeve and an insulation frame, wherein the inner wall of the metal retaining sleeve is provided with a connecting seat, the outer wall of the metal retaining sleeve is provided with a groove, a metal reinforcing chip is provided at the upper center of the inner side of the connecting seat, a limiting slot is provided at both sides of the inner wall of the metal retaining sleeve located on the connecting seat, and a U-shaped assembly groove is provided at the center of the inner side of the insulation frame, wherein limiting teeth are provided on both sides of one end of the U-shaped assembly groove.

[0006] In a further embodiment, the groove and the connecting seat are installed at an intersecting structure, and the cross-section of the groove is a trapezoidal structure.

[0007] In a further embodiment, the limiting teeth and the U-shaped assembly groove are connected in a triangular structure.

[0008] In a further embodiment, the insulating frame and the metal retaining sleeve are connected to the metal reinforcement chip via a U-shaped assembly groove.

[0009] In a further embodiment, the interior of the U-shaped assembly groove is fixedly connected to the end of the metal-reinforced chip via a positioning bayonet and a fixing pin, and the fixing pin is a small cylinder.

[0010] In a further embodiment, the connecting seat and the metal retaining sleeve are connected as an integral structure.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The insulating skeleton in this invention is connected to the metal reinforcing chip via a U-shaped assembly groove and is located within the inner ring of the metal retaining sleeve. The U-shaped assembly groove can clamp the metal reinforcing chip in the center position, so that the metal reinforcing chip is wrapped inside the U-shaped assembly groove, increasing the strength of the U-shaped assembly groove from the center position. This gives the insulating skeleton better firmness and strong resistance to deformation, increasing the overall structural strength. It is not easy to break during assembly. Furthermore, one end of the metal reinforcing chip is equipped with a fixing locking post, which can lock the connection position between the U-shaped assembly groove and the metal reinforcing chip, making the connection between the two structures more secure and convenient to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a motor stator insulation frame assembly according to the present invention;

[0014] Figure 2 This is a schematic diagram of the U-shaped assembly groove of the present invention;

[0015] Figure 3 This is a rear view of a motor stator insulation frame assembly according to the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of the metal retaining sleeve of the present invention;

[0017] Figure 5 This is a side view of the metal-reinforced chip of the present invention;

[0018] Figure 6 This is a side view of the metal retaining sleeve of the present invention.

[0019] In the diagram: 1. Metal retaining hoop; 2. Insulating frame; 3. Groove; 4. Positioning bayonet; 5. U-shaped assembly groove; 6. Limiting tooth; 7. Connecting seat; 8. Metal reinforcing chip; 9. Limiting slot; 10. Fixing lock post. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Please see Figure 1-6An embodiment of the present invention provides a motor stator insulation frame assembly, including a metal retaining sleeve 1 and an insulation frame 2. The inner wall of the metal retaining sleeve 1 is provided with a connecting seat 7, the outer wall of the metal retaining sleeve 1 is provided with a groove 3, a metal reinforcing chip 8 is provided at the middle position of the upper part of the inner wall of the connecting seat 7, a limiting groove 9 is provided at the two sides of the inner wall of the metal retaining sleeve 1 located on the connecting seat 7, and a U-shaped assembly groove 5 is provided at the middle position of the inner wall of the insulation frame 2. Limiting teeth 6 are provided on both sides of one end of the U-shaped assembly groove 5.

[0022] The insulating frame 2 is used to install the winding and mainly serves to insulate the winding. The connecting seat 7 is used to increase the firmness of the connection point between the insulating frame 2 and the metal retaining sleeve 1 and has a strong load-bearing capacity. The groove 3 is used to increase the texture of the outer wall and reserve a certain amount of heat dissipation gap to improve the heat dissipation effect. The metal reinforcing chip 8 is used to increase the strength of the insulating frame 2. The U-shaped assembly groove 5 is used to install and connect the insulating frame 2 and the metal reinforcing chip 8.

[0023] Furthermore, the groove 3 and the connecting seat 7 are installed at an intersecting structure, and the cross-section of the groove 3 is a trapezoidal structure.

[0024] Furthermore, the limiting tooth 6 and the U-shaped assembly groove 5 are connected in a triangular structure.

[0025] The triangular structure can increase the support strength of the connection between the limiting tooth 6 and the U-shaped assembly groove 5.

[0026] Furthermore, the insulating frame 2 and the metal retaining sleeve 1 are connected to the metal reinforcing chip 8 by means of the U-shaped assembly groove 5.

[0027] The insulating frame 2 can be easily installed and assembled by snap-fit.

[0028] Furthermore, the interior of the U-shaped assembly groove 5 and the end of the metal-reinforced chip 8 are fixedly connected to the fixing lock post 10 through the positioning bayonet 4, and the fixing lock post 10 is set as a small cylinder.

[0029] By connecting the positioning bayonet 4 to the fixed locking pin 10, the interior of the U-shaped assembly slot 5 and the installation position of the metal reinforcement chip 8 can be positioned.

[0030] Furthermore, the connecting seat 7 and the metal retaining sleeve 1 are connected as an integral structure.

[0031] Working principle: In use, the insulating frame 2 is assembled on the inner wall of the metal retaining sleeve 1 by embedding the U-shaped assembly groove 5 and the metal reinforcing chip 8, so that the fixing locking post 10 is aligned and fixed with the positioning slot 4. At the same time, the limiting tooth 6 is embedded with the limiting groove 9 to fix the position of the insulating frame 2. The assembled insulating frame 2 is assembled by the assembly equipment. The groove 3 increases the concave and convex feel of the outside of the metal retaining sleeve 1, leaving a certain gap inside to improve the heat dissipation effect.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electric machine stator insulation former assembly comprising a metal retaining collar (1) and an insulation former (2), characterized in that: The inner wall of the metal retaining sleeve (1) is provided with a connecting seat (7), the outer wall of the metal retaining sleeve (1) is provided with a groove (3), the middle position of the upper part of the connecting seat (7) is provided with a metal reinforcing chip (8), the inner wall of the metal retaining sleeve (1) is provided with a limiting slot (9) at the position on both sides of the connecting seat (7), the middle position of the inner wall of the insulating skeleton (2) is provided with a U-shaped assembly groove (5), the two sides of one end of the U-shaped assembly groove (5) are provided with limiting teeth (6); the limiting teeth (6) are embedded and connected with the limiting groove (9); the insulating skeleton (2) and the metal retaining sleeve (1) are connected to the metal reinforcing chip (8) through the U-shaped assembly groove (5); the inside of the U-shaped assembly groove (5) and the end of the metal reinforcing chip (8) are fixedly connected to the fixing lock post (10) through the positioning slot (4), and the fixing lock post (10) is cylindrical.

2. An electrical machine stator insulation former assembly according to claim 1, characterised in that: The groove (3) and the connecting seat (7) are installed in a cross structure, and the cross section of the groove (3) is a trapezoidal structure.

3. An electric machine stator insulating former assembly according to claim 1, characterized in that: The limiting tooth (6) and the U-shaped assembly groove (5) are connected in a triangular structure.

4. An electrical machine stator insulation former assembly according to claim 1, wherein: The connecting seat (7) and the metal retaining sleeve (1) are connected as an integral structure.

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