A potted motor housing to prevent coil detachment

Abstract

This utility model discloses a casing for a potted motor to prevent coil detachment. It includes a casing body and first limiting ribs. The first limiting ribs are spaced apart on the inner wall of the casing body, extending axially along the length of the casing body. A glue-holding groove is recessed on each first limiting rib, and a stop is provided at one end of the first limiting rib away from the rear of the casing body. The potted motor casing of this utility model, which prevents coil detachment, uses the stop to limit the forward movement of the stator. When potting the stator windings with potting compound, some of the compound is squeezed into the glue-holding groove. The integral molding of the potting compound on the stator windings and the compound in the glue-holding groove improves the stability of the stator, preventing the stator windings from retracting due to external impacts and effectively preventing coil detachment.

Description

Technical Field

[0001] This utility model relates to the field of glue-filled motors, and in particular to a housing for glue-filled motors to prevent coil detachment. Background Technology

[0002] Encapsulated motors are manufactured by injecting potting compound (such as liquid polyurethane compound) into key components of the motor, such as the stator windings, during the motor manufacturing process. This potting compound then cures at room temperature or with heat to form a protective encapsulation layer. The potting compound effectively seals electronic components, preventing corrosion from external substances (such as dust, moisture, and electrolytes) and enhancing overall mechanical strength and insulation performance.

[0003] Although potting compound can improve mechanical strength, during the installation or use of potted motors, there is still a possibility that the stator windings may move backward due to external impacts, leading to coil detachment or reduced motor performance, which requires improvement. Utility Model Content

[0004] The purpose of this invention is to provide a glued motor housing that prevents coil detachment, thereby improving the stability of the stator and preventing coil detachment.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A housing for a glue-filled motor to prevent coil detachment includes: a housing body and a first limiting rib. The first limiting rib is spaced apart on the inner wall of the housing body. The length direction of the first limiting rib extends along the axial direction of the housing body. A glue-gripping groove is recessed on the first limiting rib. A stop block is provided at one end of the first limiting rib away from the tail of the housing body.

[0007] Each of the first limiting ribs has at least one adhesive-gripping groove.

[0008] The first limiting rib and the stop block adopt an integrated structure.

[0009] The number of the first limiting ribs is 4 to 8, and they are arranged in a ring array on the inner wall of the housing body.

[0010] The inner wall of the housing body is provided with an axially extending second limiting rib, and the outer wall of the stator of the glue-filled motor is provided with a limiting groove corresponding to the second limiting rib.

[0011] The thickness of the stop block is greater than the thickness of the second limiting rib.

[0012] The thickness of the second limiting rib is greater than the thickness of the first limiting rib.

[0013] The adhesive-gripping groove is a square groove.

[0014] The beneficial effects of this utility model are as follows: A motor housing for preventing coil detachment is provided. The stator is moved forward and limited by a stop block. When potting the stator windings with potting compound, some of the potting compound is squeezed into the potting groove. The integral molding of the potting compound on the stator windings and the potting compound in the potting groove improves the stability of the stator and avoids the stator windings from moving backward due to external impact. This effectively prevents the coil from detaching and ensures the performance of the motor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0016] The following is combined with Figure 1 The technical solution of this utility model will be further illustrated through specific embodiments.

[0017] like Figure 1 The shown housing for a glued motor to prevent coil detachment includes: a housing body 1 and first limiting ribs 2. The first limiting ribs 2 are spaced apart on the inner wall of the housing body 1. The number of first limiting ribs 2 is 4 to 8, and they are distributed in a ring array on the inner wall of the housing body 1. In this embodiment, 6 first limiting ribs 2 are used to improve the structural strength of the housing body 1.

[0018] The length direction of the first limiting rib 2 extends along the axial direction of the housing body 1, thereby improving the bending strength of the housing body 1. The first limiting rib 2 is provided with a recessed glue-holding groove 3. Each first limiting rib 2 has at least one glue-holding groove 3. In this embodiment, the glue-holding groove 3 is a square groove, which can retain some of the potting glue during the glue filling process.

[0019] The adhesive gripping groove 3 is located axially in the housing body 1, corresponding to the position of the coil. When potting the stator winding with potting compound, some of the potting compound is squeezed into the adhesive gripping groove 3. The potting compound on the coil and the potting compound in the adhesive gripping groove 3 are integrally cured and formed, which improves the stability of the coil and prevents the coil from moving backward due to external impact. This effectively prevents the coil from falling off during installation and use, ensuring motor performance.

[0020] like Figure 1 As shown, a stop block 4 is provided at the end of the first limiting rib 2 away from the tail of the housing body 1. The first limiting rib 2 and the stop block 4 adopt an integrated structure with high strength. The stop block 4 is used to limit the forward movement of the stator, avoiding the problem of the stator moving forward axially after it is installed in the housing body 1.

[0021] A second limiting rib 5 extending axially is provided on the inner wall of the housing body 1. A limiting groove corresponding to the second limiting rib 5 is recessed on the outer wall of the stator of the glue-filled motor. By cooperating with the limiting groove on the outer wall of the stator, the installation accuracy and ease of operation of the stator are improved, and the torsion of the stator is avoided, thereby improving the stability after assembly.

[0022] In this embodiment, the thickness of the stop block 4 is greater than the thickness of the second limiting rib 5. The greater thickness of the stop block 4 effectively limits the front edge of the stator, preventing forward movement. The thickness of the second limiting rib 5 is greater than the thickness of the first limiting rib 2. The smaller thickness of the first limiting rib 2 does not affect the second limiting rib 5 extending into the limiting groove in the outer wall of the stator.

[0023] To improve the ease of assembly of the glue-filling motor, the housing body 1, the first limiting rib 2, the stop block 4, and the second limiting rib 5 adopt an integrated structure. It can be integrally processed and formed from materials such as cast iron, aluminum alloy, stainless steel, and plastic, which has high strength and does not require welding or screw fixing, making assembly convenient.

[0024] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A housing for a glue-filled motor to prevent coil detachment, thereby avoiding the detachment of coils on the stator of the glue-filled motor, characterized in that, include: The housing body and the first limiting rib are provided at intervals on the inner wall of the housing body. The length direction of the first limiting rib extends along the axial direction of the housing body. The first limiting rib is provided with a glue-gripping groove recessed inward. A stop block is provided at the end of the first limiting rib away from the tail of the housing body.

2. The glue-filled motor housing for preventing coil detachment according to claim 1, characterized in that, Each first limiting rib has at least one adhesive-gripping groove.

3. The potted motor housing for preventing coil detachment according to claim 1, characterized in that, The first limiting rib and the stop block adopt an integrated structure.

4. The potted motor housing for preventing coil detachment according to claim 1, characterized in that, The number of the first limiting ribs is 4 to 8, and they are arranged in a ring array on the inner wall of the housing body.

5. The potted motor housing for preventing coil detachment according to claim 1, characterized in that, The inner wall of the housing body is provided with an axially extending second limiting rib, and the outer wall of the stator of the glue-filled motor is provided with a limiting groove corresponding to the second limiting rib.

6. The potted motor housing for preventing coil detachment according to claim 5, characterized in that, The thickness of the stop block is greater than the thickness of the second limiting rib.

7. The potted motor housing for preventing coil detachment according to claim 5, characterized in that, The thickness of the second limiting rib is greater than the thickness of the first limiting rib.

8. The potted motor housing for preventing coil detachment according to claim 1, characterized in that, The adhesive gripping groove is a square groove.

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