Motor aluminum alloy end cover

By designing a rotationally symmetrical mounting port and arc-shaped groove structure for the aluminum alloy end cap of the motor, combined with limiting components, the problem of inconvenient disassembly of the motor end cap was solved, enabling quick disassembly and cleaning and simplifying the operation process.

CN224123978UActive Publication Date: 2026-04-14ZHEJIANG VNV METAL PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG VNV METAL PROD CO LTD
Filing Date
2025-04-17
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing motor end cover is inconvenient to disassemble and clean, especially the bolt fixing method which is prone to stripping and requires special tools, making cleaning inconvenient.

Method used

An aluminum alloy end cap for motors was designed, which adopts a rotationally symmetrical mounting port and an arc-shaped groove structure, combined with a limiting component, to achieve quick disassembly through rotation and deformation, simplifying the installation and disassembly process.

Benefits of technology

It enables quick disassembly and installation, reducing disassembly time, and requires no special tools, making it suitable for cleaning in dusty environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a motor aluminum alloy end cover which comprises a motor body and a motor end cover. The middle of the motor body is hollowed out to form an installation area, the inner wall of the installation area is provided with installation openings which are rotationally symmetrical and an arc-shaped groove, and a limiting piece is arranged in the arc-shaped groove. The motor end cover is provided with symmetrically-arranged installation blocks, the installation blocks and the installation openings are installed in a matched mode, and the installation blocks enter the arc-shaped grooves through the installation openings and cross the limiting pieces. The motor aluminum alloy end cover is compact in structure and ingenious in design, the motor end cover is blocked through cooperation of a rotating mode and the limiting piece capable of being deformed under stress, rapid disassembly can be achieved, and the disassembly and assembly time is shortened. Meanwhile, during mounting, special tools are not needed, and during dismounting, only a rod body with the diameter smaller than that of a third through hole needs to be inserted, the limiting piece is pushed to deform, unlocking can be achieved, the mounting block is kept to cross the limiting piece to reach the mounting opening to be unlocked, and rapid dismounting and cleaning can be conducted on places with large dust.
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Description

Technical Field

[0001] This utility model relates to motor technology, and in particular to an aluminum alloy end cap for a motor. Background Technology

[0002] Electric motors are used in a wide variety of applications. In some special cases, regular cleaning is necessary to prevent the cooling vents from becoming clogged, which can impair heat dissipation and lead to overheating and damage. The motor end cover is where the cooling fan enters the motor. The cooling fan rotates with the shaft to dissipate heat from the internal structure. The end cover has cooling vents; impurities in the air enter through these vents, causing them to become clogged with dust and reducing airflow. Therefore, regular disassembly and cleaning are required. Currently, bolt fastening is used, but prolonged rotation can cause the threads to strip, and special tools are needed for disassembly, making timely cleaning of the motor end cover inconvenient. Utility Model Content

[0003] In order to overcome the defects of the existing technology, this utility model proposes an aluminum alloy end cap for motors.

[0004] The technical solution of this utility model is implemented as follows:

[0005] An aluminum alloy end cap for an electric motor, comprising:

[0006] The motor body has a hollowed-out middle section forming an installation area. The inner wall of the installation area is provided with a rotationally symmetrical installation port and an arc-shaped groove. The installation port is located at one end of the arc-shaped groove and is kept in communication with the arc-shaped groove. A limiting member is provided in the arc-shaped groove.

[0007] The motor end cover is designed to work with the motor body. The motor end cover is provided with symmetrically arranged mounting blocks. The mounting blocks are installed in conjunction with the mounting openings. The mounting blocks enter the arc-shaped grooves through the mounting openings and pass over the limiting members.

[0008] In this type of aluminum alloy end cap for motors, the depth of the mounting opening is greater than the depth of the arc-shaped groove.

[0009] In this type of aluminum alloy end cap for motors, the arc angle of the arc groove is 90°.

[0010] In this type of aluminum alloy end cap for motors, the arc-shaped groove is provided with a recessed groove, and the limiting member is disposed in the recessed groove.

[0011] In this type of aluminum alloy end cap for motors, the limiting member consists of an mounting part, a twisting part, and a limiting part. The height of the limiting part is higher than the height of the mounting part, and the mounting part is located in the recessed groove.

[0012] In this type of aluminum alloy end cap for motor, the motor body is provided with a first through hole and a second through hole. The first through hole is located at the upper end of the mounting part, and the second through hole is located at the upper end of the limiting part. The motor end cap is provided with a third through hole. After the motor end cap is installed on the motor body and is limited by the limiting part, the third through hole and the second through hole are kept in communication.

[0013] The aluminum alloy end cap for motors according to this utility model has the following advantages: The end cap has a compact and ingenious design. By rotating it in conjunction with a force-deformable limiting member, it allows for quick disassembly, reducing disassembly and installation time. Furthermore, no special tools are required for installation, and disassembly only requires inserting a rod with a diameter smaller than the third through hole to push and deform the limiting member, thus unlocking the motor. The installation block is held past the limiting member to reach the installation opening for unlocking, enabling rapid disassembly and cleaning in dusty environments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the aluminum alloy end cap structure for the motor according to this utility model;

[0015] Figure 2 for Figure 1 Exploded view;

[0016] Figure 3 for Figure 2 A schematic diagram of the motor body structure in the diagram;

[0017] Figure 4 for Figure 3 A schematic diagram of the limiting component structure in the middle;

[0018] Figure 5 for Figure 3 A schematic diagram of the motor end cover structure;

[0019] Figure 6 for Figure 5 A schematic diagram of the structure from another direction. 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.

[0021] like Figures 1 to 6 As shown, this utility model's aluminum alloy end cap for a motor includes a motor body 1 and a motor end cap 2. The motor end cap 2 is rotatably mounted on the motor body 1.

[0022] The motor body 1 has a hollowed-out middle section forming an installation area 3, and the motor rotor is installed within the installation area 3. The inner wall of the installation area 3 has a rotationally symmetrical installation port 4 and an arc-shaped groove 5. The installation port 4 is located at one end of the arc-shaped groove 5 and maintains communication between the installation port 4 and the arc-shaped groove 5. A limiting member 6 is provided within the arc-shaped groove 5.

[0023] The limiting member 6 consists of a mounting part 7, a twisting part 8, and a limiting part 9. The height of the limiting part 9 is higher than the height of the mounting part 7, and the mounting part 7 is located within the sinking groove 10. The limiting member 6 is set within the sinking groove 10 via the mounting part 7. A countersunk hole can be provided on the mounting part 7, so that it can be set within the sinking groove 10 by bolts.

[0024] The motor end cover 2 is installed in conjunction with the motor body 1. The motor end cover 2 has multiple heat dissipation holes 211. Symmetrically arranged mounting blocks 11 are provided on the motor end cover 2, and an annular protrusion 222 is provided on the motor end cover 2. The annular protrusion 222 is installed in conjunction with the mounting area 3, and the mounting blocks 11 are positioned on the annular protrusion 222. The mounting blocks 11 are installed in conjunction with the mounting opening 4, entering the arc-shaped groove 5 through the mounting opening 4 and passing over the limiting member 6. The limiting member 6 prevents the mounting blocks 11 from resetting. When it is necessary to remove the motor end cover 2, pressure is applied to the limiting member 6 to deform it, and then the motor end cover 2 is rotated in the opposite direction to remove it.

[0025] The depth of the mounting port 4 is greater than the depth of the arc groove 5, so that the mounting block 11 can be installed from the mounting port 4 and then enter the arc groove 5.

[0026] The arc angle of the arc groove 5 is 90°. When installing the motor end cover 2, it is only necessary to rotate it 90° to achieve quick docking with the motor body 1.

[0027] The arc-shaped groove 5 is provided with a sinking groove 10, and the limiting member 6 is set in the sinking groove 10. The sinking groove 10 is used for the installation of the limiting member 6, and after being pushed and accepted by the mounting block 11, it can enter the sinking groove 10, so that the mounting block 11 can move and pass through the upper end of the limiting member 6.

[0028] The motor body 1 has a first through hole 12 and a second through hole 13. The first through hole 12 is located at the upper end of the mounting part 7 and is used to rotate a screw to fix the limiting member 6 into the recessed groove 10. The second through hole 13 is located at the upper end of the limiting part 9. The motor end cover 2 has a third through hole 14. After the motor end cover 2 is installed on the motor body 1 and restricted by the limiting member 6, the third through hole 14 is kept in communication with the second through hole 13. The second through hole 13 and the third through hole 14 are used for the insertion of the unlocking rod. The unlocking rod can be a rod with a diameter smaller than that of the second through hole 13 and the third through hole 14. When the unlocking rod is inserted, it pushes the limiting part 9 of the limiting member 6, causing the limiting part 9 to deform under force and enter the recessed groove 10. Then, the motor end cover 2 can be rotated 90°, and the mounting block 11 can be removed from the mounting port 4.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric machine aluminum alloy end cover characterized by, include: The motor body has a hollowed-out middle section forming an installation area. The inner wall of the installation area is provided with a rotationally symmetrical installation port and an arc-shaped groove. The installation port is located at one end of the arc-shaped groove and is kept in communication with the arc-shaped groove. A limiting member is provided in the arc-shaped groove. The motor end cover is designed to work with the motor body. The motor end cover is provided with symmetrically arranged mounting blocks. The mounting blocks are installed in conjunction with the mounting openings. The mounting blocks enter the arc-shaped grooves through the mounting openings and pass over the limiting members.

2. The electric machine aluminum alloy end cover of claim 1, wherein, The depth of the mounting opening is greater than the depth of the arc-shaped groove.

3. The electric machine aluminum alloy end cover of claim 1, wherein, The arc angle of the arc groove is 90°.

4. The electric machine aluminum alloy end cover of claim 1, wherein, The arc-shaped groove is provided with a sinking groove, and the limiting member is disposed in the sinking groove.

5. The electric machine aluminum alloy end cover of claim 4, wherein, The limiting member consists of an installation part, a twisting part, and a limiting part. The height of the limiting part is higher than the height of the installation part, and the installation part is located in the sinking groove.

6. The aluminum alloy end cap for the motor according to claim 5, characterized in that, The motor body is provided with a first through hole and a second through hole. The first through hole is located at the upper end of the mounting part, and the second through hole is located at the upper end of the limiting part. The motor end cover is provided with a third through hole. After the motor end cover is installed on the motor body and is limited by the limiting part, the third through hole and the second through hole are kept in communication.