Motor end cover structure and brush motor

Abstract

The utility model relates to the technical field of motors, and discloses a motor end cover structure and a brush motor, and the motor end cover structure comprises an end cover body, a conductive assembly and a capacitor assembly. The outer end face of the end cover body is inwards provided with a mounting part, and the periphery of the inner end face extends to form a grounding fixing part; the conductive assembly is connected to the end cover body; the capacitor assembly is installed on the installation part, the capacitor assembly extends to form a capacitor pin, and the capacitor pin penetrates into the inner end face of the end cover body from the outer end face of the end cover body and then is connected with the conductive assembly and / or the grounding fixing part. The motor end cover structure provided by the utility model avoids the problems of low capacitor welding efficiency and insufficient capacitor stability.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly relates to a motor end cover structure and a brushed motor. Background Art

[0002] A brushed motor is a rotating electrical machine that contains a brush device and converts electrical energy into mechanical energy (motor) or converts mechanical energy into electrical energy (generator). A brushed motor is the basis of all motors, and it has the characteristics of fast startup, timely braking, smooth speed regulation in a large range, and relatively simple control circuit. In the prior art, in order to prevent electromagnetic interference, it is often necessary to add a capacitor element inside the motor.

[0003] In the existing installation method of the capacitor, the capacitor element is installed inside the end cover and has two leads. One lead is connected to the wall of the end cover, and the other lead is connected to the brush to realize grounding of the capacitor element, thereby preventing electromagnetic interference inside the motor. However, since there is no direct contact between the capacitor element and the end cover in this fixing method, it is difficult to fix the capacitor element during welding of the capacitor lead and the end cover, which affects the welding effect and the welding efficiency is low; moreover, relying only on welding the lead of the capacitor to the motor end cover, the stability of the capacitor is insufficient, which means that the capacitor will be affected by the vibration generated during the operation of the motor and continue to vibrate. If this situation persists for a long time, the capacitor is likely to loosen.

[0004] Therefore, it is urgent to solve the problems of low capacitor welding efficiency and insufficient capacitor stability. Summary of the Utility Model

[0005] In order to solve the deficiencies of the above-mentioned prior art, the utility model provides a motor end cover structure and a brushed motor, which avoid the problems of low capacitor welding efficiency and insufficient capacitor stability.

[0006] The technical effects to be achieved by the utility model are realized through the following aspects:

[0007] In the first aspect, the utility model provides a motor end cover structure, including:

[0008] An end cover body, an installation part is provided inward on the outer end surface, and a grounding fixing part extends along the periphery of the inner end surface;

[0009] A conductive component, connected to the end cover body; and

[0010] A capacitor component, installed in the installation part, the capacitor component extends a capacitor lead, and the capacitor lead penetrates into the inner end surface of the end cover body from the outer end surface of the end cover body and then connects to the conductive component and / or the grounding fixing part.

[0011] In some implementations, the capacitor pin penetrates from the outer end face of the end cap body into the inner end face of the end cap body and then winds around the grounding fixing portion, so that the capacitor pin abuts against the housing.

[0012] In this implementation, the connection area between the capacitor pin and the grounding fixing portion is increased, and thus the grounding area of the capacitor is increased, making the grounding and conduction effects of the capacitor better, and avoiding the problem that the motor generates electromagnetic interference and affects the normal operation of the motor.

[0013] In some implementations, the installation portion is a receiving groove body formed by recessing inward from the outer end face of the end cap body.

[0014] In some implementations, the capacitor assembly is completely received in the receiving groove body.

[0015] In some implementations, the receiving groove body is connected with an installation hole for the capacitor pin to pass through.

[0016] In some implementations, the grounding fixing portion is provided with an abutting groove for installing the capacitor pin.

[0017] In this implementation, the capacitor pin winds around the grounding fixing portion and is installed in the abutting groove, making the connection between the capacitor pin and the grounding fixing portion more fixed.

[0018] In some implementations, a first bending port is formed at the connection between the conductive component and the capacitor pin, and the capacitor pin is fixed in the first bending port.

[0019] In this implementation, the capacitor pin is fixed in the first bending port formed by the conductive component, making the connection between the capacitor assembly and the conductive component more stable, and at the same time, the installation of the capacitor pin is more firm, and thus the conduction effect of the capacitor is more excellent.

[0020] In some implementations, a clamping groove for installing the conductive component is further recessed inward from the outer end face of the end cap body; a clamping portion for clamping in the clamping groove extends at the connection between the conductive component and the clamping groove.

[0021] In some implementations, a fixing column for sleeving the torsion spring is further provided on the end cap body, the torsion spring is respectively connected to the brush and the conductive component, a second bending port is formed at the connection between the conductive component and the torsion spring, and the torsion spring is fixed in the second bending port.

[0022] In a second aspect, the present utility model provides a brushed motor, comprising a brush, a rotor assembly, a stator assembly, a housing, and the motor end cover structure as described above. The brush is installed on the end cover body and abuts against the rotor assembly. The rotor assembly passes through the end cover body, and the stator assembly is sleeved on the rotor assembly. An accommodation cavity for accommodating the stator assembly is formed inside the housing, and the housing abuts against the periphery of the end cover body.

[0023] In summary, the present utility model has at least the following advantages:

[0024] For the motor end cover structure provided by the present utility model, since the outer end face of the end cover body is provided with an installation portion for installing the capacitor assembly, the capacitor assembly is installed in the installation portion, and the capacitor leads are respectively connected to the conductive assembly and the grounding fixing portion, which ensures the stability of the capacitor during the welding of the capacitor and the end cover, reduces the welding difficulty, and thus improves the welding efficiency. At the same time, it also enhances the stability of the capacitor and avoids the problem that the capacitor is prone to looseness due to the vibration generated during the movement of the motor. Therefore, the problems of low capacitor welding efficiency and insufficient capacitor stability are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the motor end cover structure of some embodiments;

[0026] Figure 2 is Figure 1 a schematic cross-sectional view of the motor end cover structure shown;

[0027] Figure 3 is Figure 1 a schematic structural diagram of the accommodation groove body and the capacitor assembly shown;

[0028] Figure 4 is Figure 1 a schematic structural diagram of another perspective of the motor end cover structure shown;

[0029] Figure 5 is Figure 1 a schematic cross-sectional view of another perspective of the motor end cover structure shown;

[0030] Figure 6 is a schematic structural diagram of the motor end cover structure of Embodiment 2;

[0031] Figure 7 is an exploded view of the brushed motor of Embodiment 3;

[0032] Figure 8 is Figure 7 a schematic cross-sectional view of the brushed motor shown.

[0033] Markings in the figures:

[0034] 1. Motor end cover structure;

[0035] 10. End cover body; 11. Installation part; 111. Accommodating groove body; 12. Grounding fixing part; 121. Contact groove; 13. Installation hole; 14. Clamping groove; 15. Fixed column; 16. Torsion spring;

[0036] 20. Conductive component; 21. First bending port; 22. Clamping part; 23. Second bending port;

[0037] 30. Capacitor component; 31. Capacitor pin;

[0038] 2. Brushed motor;

[0039] 40. Brush;

[0040] 50. Rotor assembly;

[0041] 60. Stator assembly;

[0042] 70. Housing. Specific implementation mode

[0043] To make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments.

[0044] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0045] Example 1:

[0046] Please refer to the attached Figures 1 to 4 , the motor end cover structure 1 of the present utility model includes an end cover body 10, a conductive component 20 and a capacitor component 30.

[0047] Among them, please combine Figure 1 and Figure 2 , Figure 1 which shows the structural relationship between the end cover body 10, the installation part, the grounding fixing part 12 and the conductive component 20 in the embodiment of the present utility model. Figure 2It shows the structural relationship between the capacitor component 30 and the mounting portion in the embodiment of the present utility model. Specifically, an inner mounting portion 11 is provided on the outer end surface of the end cover body 10, and a grounding fixing portion 12 extends along the periphery of the inner end surface; the conductive component 20 is connected to the end cover body 10; the capacitor component 30 is mounted on the mounting portion 11, and the capacitor component 30 extends with capacitor leads 31. The capacitor leads 31 pass through the outer end surface of the end cover body 10 and then connect to the conductive component 20 and / or the grounding fixing portion 12 after entering the inner end surface of the end cover body 10.

[0048] In this embodiment, the capacitor component 30 is mounted in the mounting portion 11, making the capacitor component 30 more stable and with stronger stability. Consequently, when welding the capacitor leads 31, the capacitor leads 31 are more stable, improving the welding efficiency of the capacitor, and at the same time avoiding the problem that the capacitor is prone to looseness due to the influence of the motor vibration; moreover, since the mounting portion 11 is formed by opening inward from the outer end surface of the end cover body 10, the space on the inner end surface of the end cover body 10 is more concise, avoiding the problem that the capacitor component 30 rubs against other components, resulting in capacitor failure and affecting the conductive effect; the capacitor leads 31 pass through the outer end surface of the end cover body 10 and then connect to the conductive component 20 and / or the grounding fixing portion 12 after entering the inner end surface of the end cover body 10 to ground the capacitor and achieve conduction, thereby shielding the electromagnetic interference effect and ensuring the normal operation of the motor.

[0049] For the above-mentioned motor end cover structure 1, since the mounting portion 11 for mounting the capacitor component 30 is provided by opening inward from the outer end surface of the end cover body 10, the capacitor component 30 is mounted in the mounting portion 11, and the capacitor leads 31 are respectively connected to the conductive component 20 and the grounding fixing portion 12, ensuring the stability of the capacitor during the welding of the capacitor and the end cover, reducing the welding difficulty, and thus improving the welding efficiency. At the same time, the stability of the capacitor is also enhanced, avoiding the problem that the capacitor is prone to looseness due to the influence of the vibration generated during the movement of the motor. Thus, the problems of low capacitor welding efficiency and insufficient capacitor stability are solved.

[0050] In some preferred embodiments, after the capacitor leads 31 pass through the outer end surface of the end cover body 10 and enter the inner end surface of the end cover body 10, they are wound around the grounding fixing portion 12 so that the capacitor leads 31 abut against the housing 70. This increases the connection area between the capacitor leads 31 and the grounding fixing portion 12, and further increases the grounding area of the capacitor, making the grounding and conductive effects of the capacitor better, and avoiding the problem that the motor generates electromagnetic interference and affects the normal operation of the motor. It can be understood that the capacitor leads 31 are not limited to being wound around the grounding fixing portion 12, and the connection area between the capacitor and the grounding fixing portion 12 can also be increased by increasing the area of the capacitor leads 31.

[0051] In some preferred embodiments, please refer to Figure 3 , Figure 3It shows the structural relationship between the accommodation groove body 111 and the capacitor component 30 in the embodiment of the present utility model. Specifically, the installation part 11 is an accommodation groove body 111 formed by inward depression from the outer end face of the end cover body 10. The capacitor component 30 is installed in the accommodation groove body 111, making the structure between the end cover body 10 and the capacitor component 30 more compact. At the same time, it avoids the problem that the capacitor component 30 rubs against other components, resulting in capacitor failure and affecting the conductive effect. Of course, the capacitor component 30 is not limited to being installed in the accommodation groove body 111, and it can also be installed by directly installing on the inner end face of the end cover body 10 or by being embedded or clamped on the inner end face of the end cover body 10.

[0052] In some preferred embodiments, the capacitor component 30 is completely accommodated in the accommodation groove body 111. The capacitor component 30 is completely covered by the accommodation groove body 111, that is, the capacitor groove body completely accommodates the capacitor component 30, making the installation of the capacitor component 30 more stable. It avoids the problem that the capacitor component 30 is prone to looseness due to the vibration generated by the rotation of the motor. At the same time, it also avoids the problem that the capacitor component 30 rubs against other components, resulting in poor grounding effect. It can be understood that the capacitor component 30 is not limited to being completely accommodated in the accommodation groove body 111, and only a part of the capacitor component 30 can also be accommodated by the accommodation groove body 111.

[0053] In some preferred embodiments, please refer to Figure 4 , Figure 4 It shows the structural relationship between the installation hole 13 and the capacitor pin 31 in the embodiment of the present utility model. Specifically, the accommodation groove body 111 is connected with an installation hole 13 for the capacitor pin 31 to pass through. The capacitor component 30 is installed in the accommodation groove body 111, and the capacitor pin 31 passes through the installation hole 13 connected to the accommodation groove body 111 and is respectively connected to the conductive component 20 and the grounding fixing part 12; making the installation of the capacitor pin 31 more stable, and further improving the overall installation stability of the capacitor component 30.

[0054] In some more preferred embodiments, please refer to Figure 4 , Figure 4 It shows the structural relationship between the abutting groove 121 and the capacitor pin 31 in the embodiment of the present utility model. Specifically, the grounding fixing part 12 is provided with an abutting groove 121 for installing the capacitor pin 31. The capacitor pin 31 is wound around the grounding fixing part 12 and installed in the abutting groove 121, making the connection between the capacitor pin 31 and the grounding fixing part 12 more fixed. The side of the capacitor pin 31 facing away from the abutting groove 121 abuts against the housing 70, thereby increasing the grounding area of the capacitor to achieve a better conductive effect and avoiding the problem that the electromagnetic interference generated by the rotation of the motor affects the normal operation of the motor.

[0055] Embodiment 2:

[0056] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the motor end cover structure 1 of the present utility model. Please refer to the attached Figures 4 to 6 .

[0057] Among them, please refer to Figure 4 , Figure 4 which shows the structural relationship between the capacitor pin 31 and the first bending port 21 in the embodiment of the present utility model. Specifically, a first bending port 21 is formed at the connection between the conductive component 20 and the capacitor pin 31, and the capacitor pin 31 is fixed within the first bending port 21.

[0058] In this embodiment, the capacitor pin 31 is fixed within the first bending port 21 formed by the conductive component 20, making the connection between the capacitor component 30 and the conductive component 20 more stable. At the same time, the installation of the capacitor pin 31 is more secure, thereby making the conductive effect of the capacitor more excellent.

[0059] It can be understood that in the related art, the capacitor pin 31 is directly connected to the conductive component 20. To ensure the connection stability between the capacitor pin 31 and the conductive component 20, methods such as soldering and integral welding are required to weld the capacitor pin 31 and the conductive component 20 together. The methods of soldering and integral welding result in low welding efficiency between the capacitor pin 31 and the conductive component 20. In this embodiment, however, the capacitor pin 31 is fixed within the first bending port 21, and the connection between the capacitor pin 31 and the conductive component 20 can be achieved through electric welding, thereby improving the welding efficiency between the capacitor pin 31 and the conductive component 20.

[0060] In some preferred embodiments, please refer to Figure 4 and Figure 5 , Figure 4 and Figure 5The structural relationship between the clamping groove 14 and the clamping portion 22 in the embodiment of the present utility model is shown. Specifically, a clamping groove 14 for installing the conductive component 20 is further recessed inward from the outer end face of the end cover body 10; a clamping portion 22 for being clamped in the clamping groove 14 extends at the connection between the conductive component 20 and the clamping groove 14. Since the conductive component 20 is installed in the clamping groove 14 recessed inward from the outer end face of the end cover body 10, the occupied space of the conductive component 20 is reduced and the overall structure is more compact; the conductive component 20 is provided with a clamping portion 22, and the clamping portion 22 cooperates with the clamping groove 14, making the connection between the conductive component 20 and the end cover body 10 more stable; moreover, since the conductive component 20 is clamped on the end cover body 10, when the conductive component 20 is damaged, it only needs to be disassembled from the clamping groove 14 for replacement, thus improving the maintenance efficiency of the motor. It can be understood that the conductive component 20 is not limited to being installed in the clamping groove 14 recessed inward from the outer end face of the end cover body 10, and can also be directly installed on the inner end face of the end cover body 10. Preferably, the conductive component 20 can be a terminal.

[0061] In some more preferred embodiments, please refer to Figure 6 , Figure 6 The structural relationship between the torsion spring 16 and the fixing post 15, the brush 40 and the conductive component 20 in the embodiment of the present utility model is shown. Specifically, a fixing post 15 for the torsion spring 16 to be sleeved is further provided on the end cover body 10. The torsion spring 16 is respectively connected to the brush 40 and the conductive component 20. A second bending opening 23 is formed at the connection between the conductive component 20 and the torsion spring 16, and the torsion spring 16 is fixed in the second bending opening 23. A fixing part is provided on the inner end face of the end cover body 10. The torsion spring 16 is sleeved on the fixing part and is respectively connected to the brush 40 and the conductive component 20 to achieve the effect of conduction, so that the rotor rotates, and further the motor operates normally; the torsion spring 16 is fixed in the second bending opening 23, making the connection between the torsion spring 16 and the conductive component 20 more stable, and at the same time the installation of the torsion spring 16 is more firm, and further the conduction effect is more excellent; the rotation of the rotor continuously generates friction with the brush 40, which will cause the brush 40 to gradually wear. The torsion spring 16 abuts against the brush 40, and under the action of the tension of the torsion spring 16, the brush 40 continuously abuts against the rotor assembly 50 to ensure the normal operation of the motor.

[0062] It can be understood that in the related art, the torsion spring 16 is directly connected to the conductive component 20. To ensure the connection stability between the torsion spring 16 and the conductive component 20, it is necessary to use soldering or integral welding methods to weld the torsion spring 16 and the conductive component 20 together. The soldering and integral welding methods result in low welding efficiency between the torsion spring 16 and the conductive component 20. In this embodiment, the torsion spring 16 is fixed in the second bending opening 23, and the connection between the torsion spring 16 and the conductive component 20 can be achieved by electric welding, thereby improving the welding efficiency between the torsion spring 16 and the conductive component 20.

[0063] Embodiment 3:

[0064] Based on the above embodiments, this embodiment provides a brushed motor 2. Please refer to the attached Figure 6 .

[0065] A brushed motor 2 includes a brush 40, a rotor assembly 50, a stator assembly 60, a housing 70, and a motor end cover structure 1.

[0066] Among them, please combine Figure 7 and Figure 8 , Figure 7 and Figure 8 to illustrate the specific structure of the brushed motor 2 in the embodiment of the present invention. Specifically, the brush 40 is installed on the end cover body 10 and abuts against the rotor assembly 50. The rotor assembly 50 passes through the end cover body 10, and the stator assembly 60 is sleeved on the rotor assembly 50. A receiving cavity 71 for receiving the stator assembly 60 is formed inside the housing 70, and the housing 70 abuts against the periphery of the end cover body 10.

[0067] In this embodiment, the rotor assembly 50 cooperates with the stator assembly 60 to ensure the normal operation of the motor. The housing 70 protects the stator assembly 60, preventing the stator assembly 60 from rubbing against other external devices and causing wear, while making the overall structure more compact. The periphery of the housing 70 abuts against the periphery of the end cover body 10, causing the capacitor pin 31 to abut against the inner wall of the housing 70, thereby achieving grounding and conducting electricity, and avoiding the problem that the electromagnetic interference generated during the rotation of the motor affects the normal and continuous rotation of the motor.

[0068] For the brushed motor 2 of the present utility model, since the outer end surface of the end cover body 10 is provided with an installation portion for installing the capacitor assembly 30 inwardly, the capacitor assembly 30 is installed in the installation portion, and the capacitor pins 31 are respectively connected to the conductive assembly 20 and the grounding fixing portion 12, which ensures the stability of the capacitor during the welding of the capacitor and the end cover, reduces the welding difficulty, and thus improves the welding efficiency. At the same time, it also enhances the firmness of the capacitor, avoiding the problem that the capacitor is prone to looseness due to the vibration generated during the movement of the motor. Thus, the problems of low welding efficiency of the capacitor and insufficient firmness of the capacitor are solved.

[0069] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0070] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0071] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0072] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, on top of, and over the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being below, beneath, and under the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0073] Although the description of the present utility model is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications, and variations based on the above content. Therefore, all such substitutions, improvements, and variations are included within the spirit and scope of the appended claims.

Claims

1. A motor end cover structure, characterized in that: include: The end cover body (10) has a mounting portion (11) disposed inwardly on the outer end surface, and a ground fixing portion (12) extending from the periphery of the inner end surface; A conductive component (20) connected to the end cover body (10); and A capacitor component (30) is mounted on the mounting portion (11), and a capacitor pin (31) extends from the capacitor component (30). The capacitor pin (31) penetrates from the outer end surface of the end cover body (10) into the inner end surface of the end cover body (10) and is connected to the conductive component (20) and / or the ground fixing portion (12).

2. The motor end cover structure according to claim 1, characterized in that: The capacitor pin (31) is inserted from the outer end surface of the end cover body (10) into the inner end surface of the end cover body (10) and then wound around the ground fixing portion (12), so that the capacitor pin (31) abuts against the shell.

3. The motor end cover structure according to claim 2, characterized in that: The mounting portion (11) is a receiving groove (111) formed by being recessed inwardly from the outer end surface of the end cover body (10).

4. The motor end cover structure according to claim 3, characterized in that: The capacitor component (30) is completely accommodated in the accommodation slot (111).

5. The motor end cover structure according to claim 3, characterized in that: The accommodating groove (111) is connected to a mounting hole (13) for the capacitor pin (31) to pass through.

6. The motor end cover structure according to claim 1, characterized in that: The ground fixing portion (12) is provided with an abutment groove (121) for mounting the capacitor pin (31).

7. The motor end cover structure according to claim 1, characterized in that: A first bending opening (21) is formed at the connection between the conductive component (20) and the capacitor pin (31), and the capacitor pin (31) is fixed in the first bending opening (21).

8. The motor end cover structure according to claim 1, characterized in that: The outer end surface of the end cover body (10) is also provided with a clamping groove (14) for mounting the conductive component (20) inwardly; and a clamping portion (22) for clamping in the clamping groove (14) extends from the connection between the conductive component (20) and the clamping groove (14).

9. The motor end cover structure according to claim 1, characterized in that: The end cover body (10) is further provided with a fixing column (15) for the torsion spring (16) to be sleeved thereon; the torsion spring (16) is respectively connected to the brush (40) and the conductive component (20); a second bending opening (23) is formed at the connection between the conductive component (20) and the torsion spring (16); the torsion spring (16) is fixed in the second bending opening (23).

10. A brushed motor, characterized in that: The motor end cover structure (1) comprises a brush (40), a rotor assembly (50), a stator assembly (60), a housing (70), and any one of claims 1 to 9, wherein the brush (40) is mounted on the end cover body (10) and abuts against the rotor assembly (50), the rotor assembly (50) is inserted through the end cover body (10), the stator assembly (60) is sleeved on the rotor assembly (50), and an accommodating cavity for accommodating the stator assembly (60) is formed inside the housing (70), and the housing abuts against the periphery of the end cover body (10).

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