A glue-filling motor rear cover

Abstract

The utility model discloses a kind of glue-filling motor rear covers, it includes: cover, cover ring and positioning sheet, the cover ring concentrically set on the edge of cover, and extend downward, the positioning sheet is spaced apart and set the bottom of cover and extend downward, first gap is left between the outer wall of positioning sheet and the inner wall of cover ring, stator is set in the casing, second gap is left between the stator outer wall and casing inner wall, coil is set on the stator, the positioning sheet extends to coil by second gap, and the limiting of coil is carried out.The glue-filling motor rear cover described in the utility model, by positioning sheet and coil top contact, reach the effect of limiting coil position, high stability, ensure the assembly accuracy of glue-filling motor.

Description

Technical Field

[0001] This utility model relates to the field of glue-filled motor technology, and in particular to a glue-filled motor rear cover. Background Technology

[0002] During the assembly of a glue-filled motor, the stator winding coils and the housing are usually loosely fitted, allowing the coils to be installed into the housing naturally, reducing obstruction.

[0003] In practice, during the process of pouring epoxy resin into the housing, the coil may expand as the resin is poured in, causing it to shift upwards. This necessitates reducing the epoxy resin pouring rate, thus decreasing assembly efficiency. Furthermore, during the stator installation into the housing, coils may not be properly installed, affecting the quality and yield of the glued motor and requiring improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a glued motor back cover to limit the coil and improve the stability and assembly accuracy of the coil.

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

[0006] A glue-filled motor back cover includes: a cover body, a cover ring, and positioning plates. The cover ring is concentrically disposed on the edge of the cover body and extends downward. The positioning plates are spaced apart at the bottom of the cover body and extend downward. A first gap is left between the outer wall of the positioning plates and the inner wall of the cover ring. A stator is disposed in the housing. A second gap is left between the outer wall of the stator and the inner wall of the housing. A coil is disposed on the stator. The positioning plates extend to the coil through the second gap to limit the coil's position.

[0007] The cover, cover ring, and positioning piece are integrated into one unit.

[0008] The cover ring is connected to the housing by threads or snaps.

[0009] The width of the first gap is not less than the wall thickness of the rear of the casing.

[0010] The positioning piece has a reinforcing rib extending downward from the bottom of the cover.

[0011] The length of the reinforcing rib is less than the length of the positioning piece, and the reinforcing rib contacts the end of the stator to limit the axial movement of the stator.

[0012] The positioning piece has a circular arc cross-section.

[0013] The number of positioning pieces is at least two, and they are arranged in a circular array at the bottom of the cover.

[0014] The beneficial effects of this utility model are as follows: A back cover for a glue-filled motor, after installation, contacts the top of the coil through a positioning piece, thereby limiting the position of the coil and preventing the coil from moving upward during epoxy resin filling. This provides high stability and helps to improve the epoxy resin filling rate and production efficiency. In addition, if the coil is not assembled properly, it will hinder the installation of the positioning piece, thus detecting abnormal coil assembly and facilitating timely correction, ensuring the assembly accuracy and yield of the glue-filled motor. Attached Figure Description

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

[0016] Figure 2 This is a structural diagram of the casing;

[0017] Figure 3 This is a schematic diagram of the assembly of the housing and the glued motor rear cover of this utility model. Detailed Implementation

[0018] The following is combined with Figures 1-3 The technical solution of this utility model will be further illustrated through specific embodiments.

[0019] like Figure 1 and Figure 3 The back cover 100 of the glue-dispensing motor shown is installed at the tail of the housing 200 of the glue-dispensing motor. It includes a cover body 101, a cover ring 102 and a positioning piece 103. In this embodiment, the cover body 101 adopts a disc structure. The cover ring 102 is concentrically arranged on the edge of the cover body 101 and extends downward to facilitate assembly with the housing 200.

[0020] The positioning pieces 103 are spaced apart at the bottom of the cover 101 and extend downward. There are at least two positioning pieces 103, which are arranged in a circular array at the bottom of the cover 101. In this embodiment, two positioning pieces 103 are used, which makes the structure simple.

[0021] The cover ring 102 is connected to the housing 200 by threads or snaps, facilitating assembly. A first gap 105 is provided between the outer wall of the positioning piece 103 and the inner wall of the cover ring 102. In this embodiment, the width of the first gap 105 is not less than the wall thickness of the tail of the housing 200, so as not to affect the tail of the housing 200 from entering the first gap 105 during assembly and completing the fit with the inner wall of the cover ring 102.

[0022] like Figure 2As shown, a stator 201 is provided in the housing 200. A second gap 202 is left between the outer wall of the stator 201 and the inner wall of the housing 200. A coil is provided on the stator 201. The positioning piece 103 extends to the coil through the second gap 202 to limit the coil and prevent the coil from moving upward during the epoxy resin injection process. This results in high stability and helps to improve the epoxy resin injection rate and production efficiency.

[0023] In this embodiment, the positioning piece 103 has an arc-shaped cross-section, which is well-adaptable to the cross-section of the second gap 202, facilitating insertion into the second gap 202. Furthermore, if the coil is not properly assembled, it will hinder the installation of the positioning piece 103, thereby detecting abnormal coil assembly, which is beneficial for timely correction and ensuring the assembly accuracy and yield rate of the glue-filled motor.

[0024] To improve processing convenience, the cover 101, cover ring 102 and positioning piece 103 adopt an integrated structure. They can be made of plastic, stainless steel and aluminum alloy as needed, and are integrally molded without welding or screw connection, resulting in high structural stability.

[0025] like Figure 1 As shown, the inner side of the positioning piece 103 is provided with a reinforcing rib 104 extending downward from the bottom of the cover 101. The reinforcing rib 104 and the positioning piece 103 adopt an integrated structure, which improves the connection strength between the positioning piece 103 and the cover 101 and the bending resistance.

[0026] In this embodiment, the length of the reinforcing rib 104 is less than the length of the positioning piece 103, so that the reinforcing rib 104 contacts the end of the stator 201 to limit the axial movement of the stator 201, thereby improving the axial stability of the stator 201 and ensuring that the stator 201 is installed in the housing 200.

[0027] 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 rear cover for a glue-dispensing motor, installed at the tail of the casing of a glue-dispensing motor, characterized in that, include: The device comprises a cover body, a cover ring, and positioning plates. The cover ring is concentrically arranged on the edge of the cover body and extends downward. The positioning plates are spaced apart at the bottom of the cover body and extend downward. A first gap is left between the outer wall of the positioning plates and the inner wall of the cover ring. A stator is disposed in the housing. A second gap is left between the outer wall of the stator and the inner wall of the housing. A coil is disposed on the stator. The positioning plates extend through the second gap to the coil to limit its movement.

2. The glue-filled motor rear cover according to claim 1, characterized in that, The cover, cover ring, and positioning piece adopt an integrated structure.

3. The glue-filled motor rear cover according to claim 1, characterized in that, The cover ring is connected to the housing by threads or snaps.

4. The glue-filled motor rear cover according to claim 1, characterized in that, The width of the first gap is not less than the wall thickness of the rear of the casing.

5. The glue-filled motor rear cover according to claim 1, characterized in that, The inner side of the positioning piece is provided with reinforcing ribs extending downward from the bottom of the cover.

6. The glue-filled motor rear cover according to claim 5, characterized in that, The length of the reinforcing rib is less than the length of the positioning piece, and the reinforcing rib contacts the end of the stator to limit the axial movement of the stator.

7. The glue-filled motor rear cover according to claim 1, characterized in that, The cross-section of the positioning piece is arc-shaped.

8. The glue-filled motor rear cover according to claim 1, characterized in that, The number of positioning pieces is at least two, and they are arranged in a circular array at the bottom of the cover.

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