Sealed motor end cover

Abstract

The utility model relates to the field of motor parts, in particular to a sealed motor end cover which comprises a cover body and a sealing ring, the sealing ring is connected to the surface, facing a shell, of the cover body, and the shell and the cover body abut against the two sides of the sealing ring and seal an inner cavity of the shell. According to the motor, the cover body and the sealing ring are arranged, the cover body is directly detached from the shell, and the abutting effect of the shell and the cover body on the sealing ring disappears, so that the maintenance difficulty of a user on the motor is reduced.

Description

Technical Field

[0001] This application relates to the field of motor components, and more particularly to a sealed motor end cap. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction.

[0003] The motor mainly consists of a stator, rotor, bearings, shaft, housing, and end cover. The housing and end cover are fixed to both ends of the stator. Glue is injected at the connection between the housing and the end cover to achieve a seal and prevent foreign objects from entering the internal cavity and interfering with the operation of the components.

[0004] When it is necessary to inspect the inside of the motor, the glue between the housing and the end cover needs to be cleaned before the housing and end cover can be disassembled, which increases the number of inspection steps and thus increases the difficulty of motor inspection. Utility Model Content

[0005] To address the issue of needing to inject glue to seal the connection between the housing and the end cover, this application provides a sealed motor end cover.

[0006] This application provides a sealed motor end cover, which adopts the following technical solution:

[0007] A sealed motor end cover includes a cover body and a sealing ring. The sealing ring is connected to the surface of the cover body facing the housing. The housing and the cover body abut against both sides of the sealing ring and seal the inner cavity of the housing.

[0008] By adopting the above technical solution, the cover is fixed to the housing, and the housing and the cover clamp the sealing ring on both sides to form a seal and close the inner cavity of the housing, ensuring that impurities are not easily allowed to enter the inner cavity of the housing and interfere with the operation of the components. When the motor needs to be repaired, the cover can be directly removed from the housing, and the sealing ring between the housing and the cover will disappear, thereby reducing the difficulty of motor repair for users. At the same time, when the repair of the motor inner cavity is completed, the cover can be reinstalled on the housing, and the sealing ring on both sides of the cover surface and the housing surface will clamp the sealing ring to form a seal, realizing the reuse of the sealing ring, reducing material consumption, and thus reflecting the concept of environmental protection.

[0009] Optionally, the surface of the cover is provided with a sealing groove for the sealing ring to be embedded, and the inner wall of the sealing groove abuts against the inner wall of the sealing ring to form a limiting position.

[0010] By adopting the above technical solution, the sealing ring is embedded in the sealing groove, and the inner wall of the sealing ring abuts against the inner wall of the sealing groove to form a limit, so that the sealing ring is not easy to shift on the surface of the cover, thus realizing the limit of the sealing ring on the cover.

[0011] Optionally, the surface of the cover away from the sealing ring is provided with multiple heat dissipation fins spaced apart.

[0012] By adopting the above technical solution, multiple heat sinks are connected at intervals on the surface of the cover away from the sealing ring. The heat sinks increase the contact area between the cover and the air, allowing the air to fully contact the heat sinks and exchange heat, thereby cooling the cover.

[0013] Optionally, the surface of the cover facing the housing is provided with a plurality of reinforcing ribs at intervals.

[0014] By adopting the above technical solution, multiple reinforcing ribs are connected at intervals on the surface of the cover facing the shell. The reinforcing ribs increase the structural strength of the cover, making the cover less susceptible to deformation from impact, thereby extending the service life of the motor.

[0015] Optionally, the cover surface is provided with a plurality of threaded holes spaced apart circumferentially for bolts to pass through, and the bolts are passed through the threaded holes and screwed on to fix the cover surface to form a fixed structure.

[0016] By adopting the above technical solution, the cover covers the inner cavity of the shell, the bolt ends correspond one-to-one with the threaded holes, the bolt ends pass through the threaded holes and are screwed and fixed to the surface of the shell to form a fixed structure, thereby realizing the detachable connection between the cover and the shell.

[0017] Optionally, a limiting ring is connected to the inner wall of the threaded hole, and the inner wall of the limiting ring abuts against the outer wall of the bolt to form a limiting position.

[0018] By adopting the above technical solution, when the bolt end passes through the threaded hole and is threaded and fixed to the surface of the housing, the inner wall of the limiting ring abuts against the outer circumference of the bolt to form a limit, making it difficult for the bolt to deviate in the threaded hole, thereby improving the limiting stability of the bolt in the threaded hole.

[0019] Optionally, the cover is connected to an air supply assembly, which includes a slider. The inner wall of the sealing groove is provided with a sliding groove for the slider to slide. The end of the slider abuts against the outer wall of the sealing ring, and the sliding groove communicates with the inner cavity of the limiting ring bladder.

[0020] By adopting the above technical solution, the sliding end abuts against the outer wall of the sealing ring. When the surface of the cover and the surface of the shell clamp the two sides of the sealing ring to form a limit, the sealing ring is deformed by pressure. The sealing ring drives the slider to slide along the inner wall of the groove towards the limit ring bladder. The air pressure in the groove increases, the groove connects to the inner cavity of the limit ring bladder, and the air in the groove enters the inner cavity of the limit ring bladder. The inner wall of the limit ring bladder is pressurized and expands and abuts against the outer wall of the bolt to form a limit, further improving the clamping force between the inner wall of the limit ring bladder and the outer wall of the bolt.

[0021] Optionally, the air supply assembly further includes an elastic element, one end of which is connected to the surface of the slider in the direction of elastic force, and the other end of which is connected to the inner wall of the groove. The elastic element has the elastic force to drive the slider to slide towards the sealing ring, and the end face of the slider protruding from the inner wall of the sealing groove tends to abut against the outer wall of the sealing ring.

[0022] By adopting the above technical solution, one end of the elastic element in the direction of elastic force is connected to the surface of the slider, and the other end of the elastic element in the direction of elastic force is connected to the inner wall of the groove. The elastic force of the elastic element drives the slider to slide towards the sealing ring. The surface of the slider abuts against the outer wall of the sealing ring. When the cover is separated from the housing, the pressure on the sealing ring from the cover and housing disappears and the sealing ring is restored. The pressure on the slider from the sealing ring disappears, and the elastic force of the elastic element drives the slider to slide towards the sealing ring. The end face of the slider abuts against the outer wall of the sealing ring. At the same time, the air pressure in the groove decreases, and the air in the limiting ring bladder enters the groove, realizing the restoration of the limiting ring bladder.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The cover and sealing ring are designed so that the cover can be directly removed from the housing. The sealing ring is no longer pressed between the housing and the cover, which reduces the difficulty of motor maintenance for users.

[0025] 2. The sealing groove is designed so that the inner wall of the sealing ring abuts against the inner wall of the sealing groove to form a limit, making it difficult for the sealing ring to shift on the surface of the cover, thus achieving the limitation of the sealing ring on the cover.

[0026] 3. The heat sink design increases the contact area between the cover and the air, allowing the air to fully contact the heat sink and exchange heat, thereby cooling the cover. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure in the embodiments of this application, mainly showing the reinforcing ribs.

[0028] Figure 2 This is a schematic diagram of the overall structure in an embodiment of this application, mainly showing the heat sink.

[0029] Figure 3 This is a partial cross-sectional view of an embodiment of this application, mainly showing the gas supply component.

[0030] Explanation of reference numerals in the attached drawings: 1. Cover; 11. Mounting hole; 12. Threaded hole; 13. Sealing groove; 14. Slide groove; 2. Sealing ring; 3. Heat sink; 4. Reinforcing rib; 5. Limiting ring; 6. Air supply assembly; 61. Slider; 62. Elastic element. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3This application will be described in further detail.

[0032] This application discloses a sealed motor end cover. (Refer to...) Figure 1 The sealed motor end cover includes a cover body 1 and a sealing ring 2. The cover body 1 has mounting holes 11 for shafts to pass through, extending along its own axis to both sides. The cover body 1 also has multiple threaded holes 12 evenly spaced circumferentially for bolts to pass through, evenly distributed around the axis of the mounting holes 11. The bolt ends pass through the threaded holes 12 and are threaded onto the surface of the housing. The cover body 1 covers the inner cavity of the housing, thus fixing the cover body 1 to the housing. The sealing ring 2 can be made of rubber or silicone. In this embodiment, the sealing ring 2 is made of rubber, which has certain... The cover 1 has a sealing groove 13 on the surface facing the housing for the sealing ring 2 to be embedded. In this embodiment, the sealing groove 13 is an annular groove. The axis of the sealing groove 13 coincides with the axis of the mounting hole 11. The inner wall of the sealing ring 2 abuts against the inner wall of the sealing groove 13 to form a limit. The surface of the cover 1 and the surface of the housing clamp the two sides of the sealing ring 2 to form a seal. There is no need to inject glue at the connection between the cover 1 and the housing to achieve a seal. At the same time, the housing and the cover 1 can be separated by simply unscrewing the bolts. The abutment effect of the housing and the cover 1 against the sealing ring 2 disappears, thereby reducing the difficulty of maintenance for the motor.

[0033] Reference Figure 2 Multiple heat sinks 3 are fixed at intervals on the surface of the cover 1 away from the shell. The multiple heat sinks 3 are evenly distributed around the axis of the mounting hole 11. The heat sinks 3 increase the contact area between the cover 1 and the air, and the cover 1 is in full contact with the air and heat exchange occurs, thereby cooling the cover 1.

[0034] Reference Figure 1 The surface of the cover 1 facing the housing is fixed with multiple reinforcing ribs 4 at intervals. The multiple reinforcing ribs 4 are evenly distributed around the axis of the mounting hole 11. The reinforcing ribs 4 increase the structural strength of the cover 1, making the cover 1 less susceptible to impact deformation, thereby extending the service life of the motor.

[0035] Reference Figure 1 and Figure 3 Each threaded hole 12 has a limiting ring 5 embedded in its inner wall. The limiting ring 5 can be made of rubber or silicone. In this embodiment, the limiting ring 5 is made of rubber, which has a certain deformation capability. The axis of the limiting ring 5 coincides with the axis of the threaded hole 12. The inner wall of the limiting ring 5 can abut against the outer circumferential surface of the bolt to form a limit, making it difficult for the bolt to deviate in the threaded hole 12, thereby improving the limiting stability of the bolt in the threaded hole 12.

[0036] Reference Figure 1 and Figure 3The cover 1 is connected to an air supply component 6. The number of air supply components 6 can be one, two or more. In this embodiment, there are multiple air supply components 6. Each air supply component 6 corresponds to a limiting ring bladder 5. The air supply component 6 can supply air to the inner cavity of the limiting ring bladder 5. The air supply component 6 includes a slider 61 and an elastic element 62. The inner wall of the sealing groove 13 is provided with a sliding groove 14 for the slider 61 to slide. In this embodiment, the slider 61 is a piston. The sliding direction of the slider 61 is perpendicular to the axis of the mounting hole 11. The elastic element 62 can be a compression spring or a tension spring. In this embodiment, the elastic element 62 is a compression spring and has a certain deformation capability. One end of the elastic element 62 in the elastic direction is fixed to the inner wall of the sliding groove 14, and the other end of the elastic element 62 in the elastic direction is fixed to the surface of the slider 61. The elastic element 62 has the elastic force to drive the slider 61 to slide towards the sealing ring 2, and the end face of the slider 61 protruding from the inner wall of the sealing groove 13 tends to abut against the outer wall of the sealing ring 2.

[0037] Reference Figure 1 and Figure 3 The groove 14 connects to the inner cavity of the limiting ring bladder 5. When the bolt end passes through the threaded hole 12 and is threaded to the surface of the housing, the surface of the housing and the surface of the cover 1 clamp the two sides of the sealing ring 2 to form a seal. At the same time, the sealing ring 2 is deformed under pressure. The sealing ring 2 drives the slider 61 to slide along the inner wall of the groove 14 toward the direction close to the limiting ring bladder 5. The air in the groove 14 enters the inner cavity of the limiting ring bladder 5. The inner ring of the limiting ring bladder 5 is pressurized and expands and presses against the outer ring wall of the bolt to form a limit, so that the bolt is not easy to deviate in the threaded hole 12, thereby improving the connection stability between the cover 1 and the housing.

[0038] The implementation principle of a sealed motor end cover according to an embodiment of this application is as follows: When the cover 1 is installed, the bolt end passes through the threaded hole 12 and is threaded and tightened to fix it to the surface of the housing. The surface of the cover 1 and the surface of the housing clamp the sealing ring 2 on both sides to form a seal. There is no need to inject glue to seal the connection between the cover 1 and the housing. At the same time, the surface of the sealing ring 2 abuts against the surface of the slider 61 and drives the slider 61 to slide towards the limiting ring 5. The inner wall of the limiting ring 5 is pressurized and expands and abuts against the outer circumference of the bolt to form a limit, so that the bolt is not easy to deviate in the threaded hole 12, thereby improving the connection stability between the housing and the cover 1. When the motor needs to be repaired, the bolt is unscrewed to separate the cover 1 and the housing. The sealing ring 2 is no longer abutted by the cover 1 and the housing, thereby reducing the difficulty of the user to repair the motor. When the motor repair is completed, the bolt is simply passed through the threaded hole 12 again and threaded and tightened to fix it to the surface of the housing. The sealing ring 2 is no longer abutted by the cover 1 and the housing, thereby reducing the difficulty of the user to repair the motor.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sealed motor end cover, characterized in that: It includes a cover (1) and a sealing ring (2), the sealing ring (2) being connected to the surface of the cover (1) facing the housing, the housing and the cover (1) abutting against both sides of the sealing ring (2) and sealing the inner cavity of the housing.

2. The sealed motor end cover according to claim 1, characterized in that: The surface of the cover (1) is provided with a sealing groove (13) for the sealing ring (2) to be embedded, and the inner wall of the sealing groove (13) abuts against the inner wall of the sealing ring (2) to form a limiting position.

3. The sealed motor end cover according to claim 1, characterized in that: The cover (1) has multiple heat sinks (3) spaced apart on the surface away from the sealing ring (2).

4. The sealed motor end cover according to claim 1, characterized in that: The cover (1) has multiple reinforcing ribs (4) spaced apart on the surface facing the shell.

5. The sealed motor end cover according to claim 2, characterized in that: The cover (1) has a plurality of threaded holes (12) spaced apart circumferentially on its surface for bolts to pass through. The bolts pass through the threaded holes (12) and are screwed on to fix the cover to the surface of the shell.

6. The sealed motor end cover according to claim 5, characterized in that: The inner wall of the threaded hole (12) is connected to a limiting ring (5), and the inner ring wall of the limiting ring (5) abuts against the outer ring wall of the bolt to form a limit.

7. The sealed motor end cover according to claim 6, characterized in that: The cover (1) is connected to an air supply assembly (6), which includes a slider (61). The inner wall of the sealing groove (13) is provided with a sliding groove (14) for the slider (61) to slide. The end of the slider (61) abuts against the outer wall of the sealing ring (2), and the sliding groove (14) is connected to the inner cavity of the limiting ring bladder (5).

8. The sealed motor end cover according to claim 7, characterized in that: The air supply assembly (6) also includes an elastic element (62). One end of the elastic element (62) in the elastic direction is connected to the surface of the slider (61), and the other end of the elastic element (62) in the elastic direction is connected to the inner wall of the groove (14). The elastic element (62) has the elastic force to drive the slider (61) to slide towards the sealing ring (2), and the end face of the slider (61) protruding from the inner wall of the sealing groove (13) tends to abut against the outer wall of the sealing ring (2).

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