Motor bearing and motor
By designing motor bearings with shaft holes, storage spaces and clamping structures, the cumbersome problems of the motor assembly process are solved, and the effect of simplifying assembly steps and reducing manufacturing costs is achieved.
Patent Information
- Application Number
- CN202420389253.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-02-26
AI Technical Summary
The assembly process of existing motors is cumbersome, and there are problems such as difficulty and time-consuming.
Design a motor bearing, including a bearing part and a clamping structure. The bearing part is equipped with a shaft hole and a storage space for storing lubricant, and the clamping structure is used to snatch the motor housing to simplify the assembly process.
The clamping structure is directly fixed to the motor housing, which reduces the number of parts and assembly steps, reduces the manufacturing cost and assembly time, and improves the assembly efficiency.
Smart Images
Figure CN222563609U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motors, in particular to a bearing of a motor and a motor. Background Art
[0002] An existing motor includes a casing, a rotating shaft, a sliding bearing and a bearing seat, etc. The rotating shaft and the sliding bearing are plug-fitted and adapted, and the rotating shaft can rotate in the sliding bearing. The sliding bearing is fixed in a bearing chamber provided in the bearing seat, and the bearing seat is fixedly connected to the casing. By adopting the sliding bearing, the motor can work smoothly and with less noise.
[0003] However, this type of motor has the problem of complicated assembly. Utility Model Content
[0004] The main purpose of the utility model is to provide a bearing for a motor, aiming to simplify the assembly steps of the motor.
[0005] In order to achieve the above-mentioned purpose, the bearing of the motor proposed by the utility model comprises:
[0006] A bearing portion, provided with an axial hole and a receiving space communicated with the axial hole, wherein the receiving space is used to store lubricant; and
[0007] The clamping structure is arranged on the outer peripheral wall of the bearing part, and the clamping structure is used for clamping with the housing of the motor.
[0008] Optionally, the clamping structure includes:
[0009] a cantilever portion having a first end and a second end arranged opposite to each other, wherein the first end is fixed to the bearing portion and the second end is suspended in the air so that the second end can be elastically deformed; and
[0010] The hook is arranged at the second end.
[0011] Optionally, the receiving space is provided between the shaft hole and the cantilever portion, so that the second end of the cantilever portion can be elastically deformed toward the receiving space.
[0012] Optionally, the bearing further comprises a flange portion, wherein the flange portion is arranged at one end of the bearing portion away from the hook, and the flange portion and the hook are used to clamp the housing of the motor to limit axial movement of the bearing.
[0013] Optionally, the outer peripheral wall of the bearing portion is provided with a plurality of the clamping structures, and the plurality of the clamping structures are arranged at intervals along the circumference of the bearing portion; and / or,
[0014] The bearing portion is provided with a plurality of the receiving spaces, and the plurality of the receiving spaces are arranged at intervals along the circumferential direction of the shaft hole.
[0015] Optionally, the axial hole comprises a first sub-hole and a second sub-hole which are connected, wherein an inner diameter of the first sub-hole increases from an end close to the second sub-hole to an end far from the second sub-hole.
[0016] Optionally, the motor comprises a stator and a rotor, the rotor is rotatably disposed in the stator, an air gap is provided between the stator and the rotor, and a difference between an inner diameter of an end of the first sub-hole away from the second sub-hole and the second sub-hole is greater than or equal to 1.5 times of a distance of the air gap; and / or,
[0017] An axial depth of the first sub-hole is greater than or equal to 3 mm.
[0018] Optionally, the bearing further includes an end stopper, which is provided at an end of the second sub-hole away from the first sub-hole and blocks the second sub-hole.
[0019] Optionally, the bearing further includes a blocking cover, which is disposed at one end of the bearing portion and blocks the accommodating space.
[0020] The utility model also provides a motor, comprising:
[0021] Bearings of the above-mentioned motor;
[0022] The housing is provided with an assembly hole, and the bearing is fixed in the assembly hole through the clamping structure; and
[0023] The rotating shaft is passed through the shell and is plugged and matched with the shaft hole.
[0024] Optionally, the outer peripheral wall of the bearing portion is interference fit with the assembly hole.
[0025] A bearing in a technical solution of an embodiment of the utility model is applied to a motor, and a shaft hole is provided on the bearing portion of the bearing, and the rotating shaft of the motor is inserted into the shaft hole. When the motor is running, the rotating shaft and the bearing rotate relative to each other. A receiving space is also provided on the bearing portion, and the receiving space is connected to the shaft hole, so that the lubricant inside the receiving space can enter the shaft hole, reducing the friction between the bearing and the rotating shaft, so that the rotating shaft rotates more smoothly relative to the bearing, thereby extending the service life of the motor and reducing the running noise of the motor; on the other hand, the receiving space can store more lubricants, reducing the frequency of adding lubricants to the bearings, and improving the convenience of the motor during use. The outer peripheral wall of the bearing portion is provided with a snap-fit structure, and the snap-fit structure is used to snap-fit with the housing of the motor, so that the bearing can be directly assembled on the housing of the motor without the need to additionally set up a bearing seat, thereby reducing the number of parts of the motor, simplifying the assembly steps of the motor, and reducing the manufacturing cost of the motor. The housing and bearing of the motor are connected by snap-fitting, which has a simple structure, is easy to disassemble and assemble, and improves the assembly efficiency of the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0027] Figure 1 It is a structural schematic diagram of an embodiment of a bearing of a motor of the utility model;
[0028] Figure 2 A cross-sectional view of an embodiment of the motor of the utility model;
[0029] Figure 3 for Figure 2 A partial enlarged view of the middle A;
[0030] Figure 4 The structure of the bearing of the motor of the utility model is shown in FIG. Figure 1 ;
[0031] Figure 5 for Figure 4 Sectional view at the middle BB;
[0032] Figure 6 The structure of the bearing of the motor of the utility model is shown in FIG. Figure 2 ;
[0033] Figure 7 for Figure 6 Sectional view at CC;
[0034] Figure 8 It is an exploded view of the bearing of the motor of the utility model.
[0035] Description of Figure Numbers:
[0036] Label name Label name 100 Bearings 110 Bearing 111 Shaft hole 1111 The first sub-hole 1112 The second sub-hole 112 Containment space 120 Card connection structure 121 Cantilever 122 Hook 130 Flange 140 End stop 150 Cover 200 case 300 Shaft
[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0040] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0042] The utility model provides a bearing for a motor.
[0043] Reference Figures 1 to 3 , Figure 1 This is a schematic structural diagram of an embodiment of a bearing of a motor of the utility model. Figure 2 This is a cross-sectional view of an embodiment of the motor of the utility model. Figure 3 for Figure 2 A partial enlarged view of point A in the middle.
[0044] In the embodiment of the utility model, the bearing 100 of the motor includes:
[0045] The bearing portion 110 is provided with an axial hole 111 and a receiving space 112 communicating with the axial hole 111, and the receiving space 112 is used to store lubricant; and
[0046] The clamping structure 120 is disposed on the outer peripheral wall of the bearing portion 110 , and is used for clamping with the housing 200 of the motor.
[0047] The bearing 100 in a technical solution of an embodiment of the utility model is applied to a motor, and a shaft hole 111 is provided on the bearing portion 110 of the bearing 100, and the motor shaft 300 is inserted into the shaft hole 111. When the motor is running, the shaft 300 and the bearing 100 rotate relative to each other. A receiving space 112 is also provided on the bearing portion 110, and the receiving space 112 is connected to the shaft hole 111, so that the lubricant inside the receiving space 112 can enter the shaft hole 111, reducing the friction between the bearing 100 and the shaft 300, so that the shaft 300 can rotate more smoothly relative to the bearing 100, thereby extending the service life of the motor and reducing the running noise of the motor; on the other hand, the receiving space 112 can store more lubricant, reduce the frequency of adding lubricant to the bearing 100, and improve the convenience of the motor during use. The outer peripheral wall of the bearing part 110 is provided with a clamping structure 120, which is used to clamp with the housing 200 of the motor, so that the bearing 100 can be directly assembled to the housing 200 of the motor without the need for an additional bearing seat, thereby reducing the number of parts of the motor, simplifying the assembly steps of the motor, and reducing the manufacturing cost of the motor. The housing 200 of the motor and the bearing 100 are connected by clamping, which has a simple structure, is easy to disassemble and assemble, and improves the assembly efficiency of the motor.
[0048] In this embodiment, the snap-fit structure 120 and the bearing portion 110 are an integrated structure, and the connection is more secure. The snap-fit structure 120 and the bearing portion 110 are not easy to separate, which reduces the possibility of damage to the bearing 100 and extends the service life of the bearing 100.
[0049] Optionally, the clamping structure 120 includes:
[0050] The cantilever portion 121 has a first end and a second end that are oppositely disposed, the first end being fixed to the bearing portion 110 and the second end being suspended in the air so as to be elastically deformable; and
[0051] The hook 122 is disposed at the second end.
[0052] Reference Figure 3 and Figure 5In this embodiment, the clamping structure 120 includes a cantilever portion 121 and a hook 122. The cantilever portion 121 has a first end and a second end. The hook 122 is arranged at the second end of the cantilever portion 121. The first end of the cantilever portion 121 is fixed to the bearing portion 110, and the second end of the cantilever portion 121 is suspended so that the second end of the cantilever portion 121 can be elastically deformed. When the bearing 100 is installed into the motor housing 200, the cantilever portion 121 is elastically deformed so that the hook 122 avoids the motor housing 200. When the bearing 100 is assembled in place, the cantilever portion 121 restores its own deformation so that the hook 122 is clamped with the motor housing 200. The overall structure of the clamping structure 120 is simple and easy to assemble. Specifically in this embodiment, the cantilever portion 121 extends along the axial direction of the bearing portion 110, the first end of the cantilever portion 121 is fixed to one end of the bearing portion 110, and the second end of the cantilever portion 121 extends to the other end of the bearing portion 110, which not only makes the cantilever portion 121 longer and has good elasticity, but also makes the structure of the entire bearing 100 more compact, thereby reducing the volume of the bearing 100.
[0053] Optionally, the receiving space 112 is provided between the shaft hole 111 and the cantilever portion 121 , so that the second end of the cantilever portion 121 can be elastically deformed toward the receiving space 112 .
[0054] In this embodiment, the receiving space 112 is provided between the shaft hole 111 and the cantilever portion 121. When the bearing 100 is installed in the housing 200 of the motor, the second end of the cantilever portion 121 is elastically deformed toward the inside of the receiving space 112. The bearing portion 110 avoids the deformed cantilever portion 121 through the receiving space 112, so that the receiving space 112 can not only store lubricant, but also avoid the cantilever portion 121, thereby simplifying the structure of the bearing 100 and making the structure of the bearing 100 more compact.
[0055] Optionally, the bearing 100 further includes a flange portion 130 , which is disposed at one end of the bearing portion 110 away from the hook 122 , and the flange portion 130 and the hook 122 are used to clamp the housing 200 of the motor to limit the axial movement of the bearing 100 .
[0056] Combination Figures 3 to 5In this embodiment, the bearing 100 also includes a flange portion 130, which is arranged at one end of the bearing portion 110 away from the hook 122. After the bearing 100 is installed in the housing 200 of the motor, the hook 122 extends into the inner wall of the housing 200, and the flange portion 130 is located outside the housing 200, so that the hook 122 and the flange portion 130 clamp both sides of the housing 200, limit the axial movement of the bearing 100, make the connection between the bearing 100 and the housing 200 more stable, avoid the axial movement of the bearing 100, so that the rotation of the shaft 300 inserted in the shaft hole 111 is more stable, reduce the possibility of axial movement of the shaft 300, and reduce the degree of axial movement of the shaft 300.
[0057] Optionally, the outer peripheral wall of the bearing portion 110 is provided with a plurality of clamping structures 120, and the plurality of clamping structures 120 are arranged at intervals along the circumference of the bearing portion 110; and / or,
[0058] The bearing portion 110 is provided with a plurality of receiving spaces 112 , and the plurality of receiving spaces 112 are arranged at intervals along the circumferential direction of the shaft hole 111 .
[0059] Reference Figure 4 In this embodiment, the outer wall of the bearing part 110 is provided with a plurality of clamping structures 120. The plurality of clamping structures 120 make the bearing 100 more stable after being installed in the motor housing 200, and the bearing 100 is not easy to move, thereby improving the rotation stability of the motor shaft 300 and reducing the running noise of the motor. Specifically in this embodiment, three clamping structures 120 are provided on the outer wall of the bearing part 110. The three clamping structures 120 are evenly distributed on the outer wall of the bearing part 110 at equal intervals, so that the force on the three clamping structures 120 is more uniform, reducing the possibility of damage to each clamping structure 120 and extending the service life of the bearing 100.
[0060] Reference Figure 4 In this embodiment, the bearing portion 110 is provided with a plurality of receiving spaces 112. Lubricants are stored in the plurality of receiving spaces 112, thereby increasing the storage space for the lubricants, further reducing the frequency of adding lubricants to the bearing 100, and improving the convenience of using the motor. The plurality of receiving spaces 112 are arranged at intervals along the axial direction of the shaft hole 111, so that the lubricants in different receiving spaces 112 can enter different positions of the shaft hole 111, so that the lubricants adhered to the rotating shaft 300 are more uniform, further improving the smoothness of the rotation of the rotating shaft 300, thereby extending the service life of the motor and reducing the operating noise of the motor. Specifically in this embodiment, the bearing portion 110 is provided with three receiving spaces 112, and the three receiving spaces 112 are evenly spaced along the axial direction of the shaft hole 111, and each receiving space 112 is provided with a corresponding clamping structure 120.
[0061] Optionally, the axial hole 111 includes a first sub-hole 1111 and a second sub-hole 1112 that are connected to each other, wherein the inner diameter of the first sub-hole 1111 increases from an end close to the second sub-hole 1112 to an end away from the second sub-hole 1112 .
[0062] Combination Figure 1 , Figure 6 and Figure 7 In this embodiment, the axial hole 111 includes a first sub-hole 1111 and a second sub-hole 1112 that are connected to each other, wherein the first sub-hole 1111 is arranged at an end of the second sub-hole 1112 close to the interior of the motor housing 200, and the inner diameter of the first sub-hole 1111 increases from the end close to the second sub-hole 1112 to the end away from the second sub-hole 1112, so that the first sub-hole 1111 is in a bell-mouth shape. The bearing 100 in this embodiment is applied to the non-extending end of the rotating shaft 300. During the assembly of the motor, due to the magnetic force between the stator and the rotor of the motor, the rotating shaft 300 installed in the housing 200 is easily sucked sideways and away from the predetermined axis. When the bearing 100 is installed in the motor housing 200, the bell-shaped structure of the first sub-hole 1111 can guide the non-extending end of the rotating shaft 300. The bell-shaped structure of the first sub-hole 1111 can correct the rotating shaft 300 back to the predetermined axis, and avoid the problem that the rotating shaft 300 deviating from the predetermined axis interferes with the bearing 100, resulting in the bearing 100 being unable to be installed in the housing 200. The correction function of the side-sucked rotating shaft 300 is achieved by changing the inner diameter of the first sub-hole 1111, and the structure is simple and the manufacturing cost is low.
[0063] Optionally, the motor includes a stator and a rotor, the rotor is rotatably disposed in the stator, an air gap is provided between the stator and the rotor, and a difference between an inner diameter of an end of the first sub-hole 1111 away from the second sub-hole 1112 and the second sub-hole 1112 is greater than or equal to 1.5 times the distance of the air gap; and / or,
[0064] The axial depth of the first sub-hole 1111 is greater than or equal to 3 mm.
[0065] There is an air gap between the stator and the rotor of the motor. When the stator and the rotor are sucked sideways, the rotating shaft 300 tilts and deviates from the axis. If the inner diameter of one end of the first sub-hole 1111 away from the second sub-hole 1112 (such as Figure 7 D1) and the inner diameter of the second sub-hole 1112 (as shown Figure 7The inner diameter difference between the first sub-hole 1111 and the second sub-hole 1112 is small, that is, the opening degree of the bell mouth of the first sub-hole 1111 is small. When the bearing 100 is installed in the housing 200 of the motor, the inclined shaft 300 is likely to interfere with the bearing 100, resulting in the inability of the bearing 100 to be installed in the housing 200, and the inability to guide the inclined shaft 300 back to the predetermined axis. In this embodiment, the inner diameter difference between the end of the first sub-hole 1111 away from the second sub-hole 1112 and the second sub-hole 1112 is not less than 1.5 times the air gap size, which effectively ensures that the inclined shaft 300 can extend into the first sub-hole 1111 when the bearing 100 is installed in the housing 200. As the bearing 100 is assembled in place, the inclined shaft 300 enters the second sub-hole 1112 along the inclined inner wall of the first sub-hole 1111, thereby returning to the predetermined axis.
[0066] In this embodiment, the axial depth of the first sub-hole 1111 (eg Figure 7 h) is not less than 3 mm, so that the depth of the first sub-hole 1111 is deeper. When the inclination angle of the first sub-hole 1111 is determined, the deeper first sub-hole 1111 makes the inner diameter of the end of the first sub-hole 1111 away from the second sub-hole 1112 larger, ensuring that the inclined shaft 300 can extend into the first sub-hole 1111 when the bearing 100 is assembled; when the inner diameter difference between the end of the first sub-hole 1111 away from the second sub-hole 1112 and the second sub-hole 1112 is determined, the deeper first sub-hole 1111 makes the inclination of the inner wall of the first sub-hole 1111 more gentle, ensuring the guiding effect of the bell-mouth structure of the first sub-hole 1111 on the shaft 300, and reducing the situation where the inclined shaft 300 and the inner wall of the first sub-hole 1111 are stuck during the assembly of the bearing 100.
[0067] Optionally, the bearing 100 further includes an end stopper 140 , which is disposed at an end of the second sub-hole 1112 away from the first sub-hole 1111 and blocks the second sub-hole 1112 .
[0068] Combination Figure 3 and Figure 7 In this embodiment, the bearing 100 also includes an end stop 140, which blocks the second sub-hole 1112. The bearing 100 in this embodiment can only be applied to the non-extending end of the motor's shaft 300. After the bearing 100 is assembled to the housing 200, the non-extending end of the shaft 300 is inserted into the second sub-hole 1112. The end stop 140 can block the axial movement of the shaft 300, thereby improving the rotation stability of the shaft 300 and reducing the running noise of the motor.
[0069] Optionally, the bearing 100 further includes a blocking cover 150 , which is disposed at one end of the bearing portion 110 and blocks the receiving space 112 .
[0070] Reference Figure 3 and Figure 8 In this embodiment, the bearing 100 further includes a cover 150, which blocks the receiving space 112 to prevent the lubricant in the receiving space 112 from flowing out, thereby ensuring the lubrication effect on the rotating shaft 300 and extending the service life of the motor. The cover 150 can be detachably connected to the bearing 110 by various means such as snap connection or screw connection, so as to facilitate the addition of lubricant into the receiving space 112.
[0071] In this embodiment, the bearing 100 is made of wear-resistant material, such as plastic, resin, etc., which is light in weight, which is beneficial to reducing the weight of the motor. In addition, the material cost is low and easy to form, which reduces the manufacturing cost of the bearing 100.
[0072] The utility model also provides a motor, comprising:
[0073] The bearing 100 of the motor mentioned above;
[0074] The housing 200 is provided with an assembly hole, and the bearing 100 is fixed in the assembly hole through the clamping structure 120; and
[0075] The rotating shaft 300 passes through the housing 200 and is plugged and matched with the shaft hole 111 .
[0076] The specific structure of the bearing 100 of the motor refers to the above embodiment. Since the motor adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Figure 2 The housing 200 is provided with a receiving cavity, the stator of the motor is fixed inside the receiving cavity, the rotor is arranged in the stator at intervals, the rotating shaft 300 is connected to the rotor and one end of the rotating shaft 300 extends out of the receiving cavity, wherein the bearing 100 can be assembled at the extending end of the rotating shaft 300 or at the non-extending end of the rotating shaft 300. It should be noted that the bearing 100 in the embodiment provided with the end stop 140 can only be assembled at the non-extending end of the rotating shaft 300. The bearing 100 is directly fixed in the assembly hole of the housing 200 through the clamping structure 120, and there is no need to set up an additional bearing seat, which reduces the number of parts of the motor, simplifies the assembly steps of the motor, and reduces the manufacturing cost of the motor.
[0077] Optionally, the outer peripheral wall of the bearing portion 110 is interference-fitted with the assembly hole.
[0078] In this embodiment, the bearing 100 is fixed in the assembly hole of the housing 200 by means of interference fit, which reduces the possibility of the bearing 100 moving in the assembly hole, thereby ensuring the stability of the rotation of the shaft 300, thereby improving the stability of the motor operation and reducing the running noise of the motor. The structure for achieving interference fit is relatively simple, the manufacturing difficulty is relatively low, and it is conducive to reducing the manufacturing cost of the motor.
[0079] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A bearing for a motor, characterized in that: include: The bearing part is provided with an axial hole and a receiving space communicated with the axial hole, wherein the receiving space is used to store lubricant; as well as The clamping structure is arranged on the outer peripheral wall of the bearing part, and the clamping structure is used for clamping with the housing of the motor.
2. The bearing of the motor according to claim 1, characterized in that: The clamping structure comprises: a cantilever portion having a first end and a second end arranged opposite to each other, wherein the first end is fixed to the bearing portion and the second end is suspended in the air so that the second end can be elastically deformed; and The hook is arranged at the second end.
3. The bearing of the motor according to claim 2, characterized in that: The receiving space is provided between the shaft hole and the cantilever portion, so that the second end of the cantilever portion can be elastically deformed toward the receiving space.
4. The bearing of the motor according to claim 3, characterized in that: The bearing further comprises a flange portion, which is arranged at one end of the bearing portion away from the hook, and the flange portion and the hook are used to clamp the housing of the motor to limit the axial movement of the bearing.
5. The bearing of the motor according to claim 1, characterized in that: The outer peripheral wall of the bearing portion is provided with a plurality of the clamping structures, and the plurality of the clamping structures are arranged at intervals along the circumference of the bearing portion; and / or, The bearing portion is provided with a plurality of the receiving spaces, and the plurality of the receiving spaces are arranged at intervals along the circumferential direction of the shaft hole.
6. The bearing of the motor according to claim 1, characterized in that: The axial hole comprises a first sub-hole and a second sub-hole which are connected to each other, wherein the inner diameter of the first sub-hole increases from an end close to the second sub-hole to an end far from the second sub-hole.
7. The bearing of the motor according to claim 6, characterized in that: The motor comprises a stator and a rotor, the rotor is rotatably disposed in the stator, an air gap is provided between the stator and the rotor, and a difference between an inner diameter of an end of the first sub-hole away from the second sub-hole and the second sub-hole is greater than or equal to 1.5 times of a distance of the air gap; and / or, An axial depth of the first sub-hole is greater than or equal to 3 mm.
8. The bearing of the motor according to claim 7, characterized in that: The bearing further comprises an end stopper, which is arranged at an end of the second sub-hole away from the first sub-hole and blocks the second sub-hole.
9. The bearing of the motor according to claim 1, characterized in that: The bearing further comprises a blocking cover, which is arranged at one end of the bearing portion and blocks the accommodating space.
10. A motor, characterized in that: include: The bearing of the motor according to any one of claims 1 to 9; The housing is provided with an assembly hole, and the bearing is fixed in the assembly hole through the clamping structure; and The rotating shaft is passed through the shell and is plugged and matched with the shaft hole.
11. The motor according to claim 10, characterized in that The outer peripheral wall of the bearing portion is interference-fitted with the assembly hole.