End cover, motor and clothes processing equipment

Abstract

The utility model provides an end cover, a motor and clothes processing equipment, and the end cover comprises an end cover body which is provided with an installation protruding part; the elastic ring is arranged on the periphery of the mounting convex part in a sleeving mode and can rotate relative to the mounting convex part, a limiting part used for limiting axial movement of the elastic ring is arranged on the mounting convex part, a mounting groove is formed in the inner periphery of the elastic ring, the mounting groove penetrates through the two ends of the elastic ring, and the elastic ring is arranged on the periphery of the mounting convex part in a matched and sleeving mode through the mounting groove. According to the end cover provided by the invention, a limiting piece does not need to be additionally arranged for limiting the elastic ring, so that the use of parts can be saved, and the cost is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, specifically, relate to a end cover, motor and clothes processing equipment. BACKGROUND

[0002] At present, in the related art, the motor for clothes dryer requires that the damping rubber ring is axially fixedly connected with the end cover, and the damping rubber ring can freely rotate in the circumferential direction, so that the motor can be flexibly adjusted in position during the installation of the whole machine. However, in the related art, the fixing mode of the damping rubber ring usually uses an additional component to fix the damping rubber ring on the end cover or the motor. As shown in the structural diagram, Figure 5 The end cover 1' and the damping rubber ring 2' are fixed by using the positioning member 3'. This fixing mode needs to additionally set an additional component for fixing, which increases the cost.

[0003] Therefore, how to design a motor capable of reducing the setting of components to reduce the cost has become a problem to be solved at present. UTILITY MODEL CONTENTS

[0004] The utility model aims at least solve the problem of high cost caused by fixing the damping rubber ring by additionally setting the positioning member.

[0005] Therefore, the first aspect of the utility model provides an end cover.

[0006] The second aspect of the utility model provides a motor.

[0007] The third aspect of the utility model provides a clothes processing equipment.

[0008] Therefore, the first aspect of the utility model provides an end cover, which comprises an end cover body, an installation protrusion is arranged on the end cover body, an elastic ring is sleeved on the outer periphery of the installation protrusion and can rotate relative to the installation protrusion, a limiting portion for limiting the axial movement of the elastic ring is arranged on the installation protrusion, an installation groove is arranged on the inner periphery of the elastic ring, the installation groove penetrates both ends of the elastic ring, and the elastic ring is sleeved on the outer periphery of the installation protrusion through the installation groove.

[0009] The end cover provided by the utility model, comprising an end cover body and an elastic ring, is characterized in that: the end cover body is provided with a mounting protrusion, the elastic ring is sleeved on the outer periphery of the mounting protrusion, and the mounting protrusion is provided with a limiting portion for limiting the axial movement of the elastic ring, thereby preventing the elastic ring from being separated from the mounting protrusion and ensuring the stability of the elastic ring.

[0010] According to the end cover provided by the utility model, the following additional technical features can also be provided:

[0011] In some embodiments, the limiting portion is arranged at one end of the mounting protrusion away from the end cover body and extends outward in the radial direction of the elastic ring.

[0012] In these embodiments, the limiting portion can be arranged at one end of the mounting protrusion away from the end cover body and extend outward in the radial direction of the elastic ring, that is, the limiting portion is arranged to protrude from the outer surface of the mounting protrusion, so that the elastic ring can be axially limited by the limiting portion.

[0013] In some embodiments, the mounting protrusion is hollow and tubular, one end of the mounting protrusion away from the end cover body is formed with an outwardly bent flange structure, and the flange structure is the limiting portion.

[0014] In these embodiments, the mounting protrusion is hollow and tubular, and one end of the mounting protrusion away from the end cover body is bent outward to form a flange structure as the limiting portion. This structure utilizes the shape characteristics of the material itself to achieve the limiting function. The flange structure provides axial limiting while having a certain guiding effect, facilitating the installation of the elastic ring, and compared with a separately arranged limiting part, the number of parts is reduced, and the assembly difficulty and cost are reduced.

[0015] In some embodiments, the limiting portion is a limiting protrusion arranged on the outer periphery of the mounting protrusion.

[0016] In the embodiments, the limiting part is provided as a limiting protrusion, which is simple in structure and easy to manufacture. The limiting protrusion can effectively block the elastic ring, while ensuring the axial limiting function of the elastic ring, reducing the complexity of components, and reducing the manufacturing cost. In the process of rotation of the elastic ring, the contact mode between the limiting protrusion and the elastic ring is relatively simple, which reduces the frictional resistance and is conducive to the flexible rotation of the elastic ring.

[0017] In some embodiments, optionally, the mounting groove and the limiting part are in interference fit.

[0018] In the embodiments, the mounting groove and the limiting part are in interference fit, which ensures the stability of the elastic ring after installation, effectively prevents the elastic ring from falling off by itself under the action of no external force, ensures that the elastic ring is always in the correct installation position during the operation of the motor, maintains good damping effect, reduces the vibration noise and adverse effects on other parts of the motor that may be caused by the loosening of the elastic ring.

[0019] In some embodiments, optionally, the elastic ring comprises at least one of a rubber piece, a polyurethane piece and a silica gel piece.

[0020] In the embodiments, the elastic ring is made of at least one of a rubber piece, a polyurethane piece and a silica gel piece, which all have good elasticity and damping performance. The rubber piece has good comprehensive elasticity and damping characteristics, and can effectively absorb vibration energy. The polyurethane piece has high strength and good elasticity, and can adapt to different damping requirements. The silica gel piece has excellent high-temperature and low-temperature resistance, and can maintain elasticity in a wide temperature range, ensuring reliable damping effect of the motor under different working conditions and ambient temperatures, improving the stability and reliability of the motor operation, and prolonging the service life of the motor.

[0021] In some embodiments, optionally, the number of mounting grooves corresponds to the number of limiting parts one by one, the number of mounting grooves is multiple, the number of limiting parts is multiple, and the multiple limiting parts are arranged along the circumference of the mounting protrusion.

[0022] In the embodiments, the number of mounting grooves corresponds to the number of limiting parts one by one, and both are multiple and arranged along the circumference of the mounting protrusion, so that the elastic ring is more evenly stressed in the circumferential direction. The multiple limiting parts can limit the elastic ring from multiple points to prevent it from shifting or twisting in the circumferential direction, ensuring the stability of the elastic ring in the circumferential direction, so as to better play its damping role, and also facilitate the accurate cooperation between the elastic ring and the mounting protrusion during installation, improving the assembly efficiency and quality.

[0023] In some embodiments, optionally, the end cover further comprises a guide surface arranged along the circumference of the mounting protrusion at the limiting part, for guiding the installation of the elastic ring.

[0024] In the embodiments, the guide surface of the limiting portion is arranged circumferentially along the mounting protrusion, which can guide the installation of the elastic ring. The elastic ring can be more smoothly fitted into the mounting protrusion and matched with the limiting portion, reducing the jamming and friction in the installation process, reducing the damage risk of the elastic ring and the mounting protrusion, and improving the assembly efficiency and quality.

[0025] In some embodiments, the end cover body comprises a bottom wall, the mounting protrusion is arranged on one side of the bottom wall, and a circumferential wall is arranged on the other side of the bottom wall and at the edge of the bottom wall.

[0026] In the embodiments, the end cover body comprises a bottom wall and a circumferential wall. The bottom wall is used to bear the mounting protrusion and connect and fix other parts of the end cover, and the circumferential wall is arranged on the other side edge of the bottom wall, thereby enhancing the overall strength and stability of the end cover body. Such a structure can provide a stable and reliable basis for the installation of the elastic ring and the overall operation of the motor, ensure that the end cover body can withstand various forces without deformation or damage during the operation of the motor, ensure the normal work of the elastic ring and other parts of the motor, and improve the reliability and durability of the motor.

[0027] The second aspect of the utility model provides a motor, which comprises the end cover in any one of the technical solutions of the first aspect.

[0028] The motor provided by the application comprises the end cover in any one of the technical solutions of the first aspect. Therefore, the motor provided by the application also has all the beneficial effects of the end cover in any one of the technical solutions of the first aspect, which will not be described here.

[0029] In some embodiments, the motor is a single-phase asynchronous motor.

[0030] In the embodiments, the motor is a single-phase asynchronous motor, which is mature in principle, simple in structure, and low in cost, and is widely used in daily household appliances such as clothes dryers. When the end cover of the application is applied to a single-phase asynchronous motor, the fixing problem of the damping rubber ring can be effectively solved without increasing too much cost, the damping performance and overall reliability of the single-phase asynchronous motor in the clothes dryer are improved, the single-phase asynchronous motor has more advantages in market competition, and the promotion and application of the product are facilitated.

[0031] The third aspect of the utility model provides a clothes processing device, which comprises the end cover in any one of the technical solutions of the first aspect and / or the motor in any one of the technical solutions of the second aspect.

[0032] The laundry treating apparatus provided in the present application comprises the end cover in any one of the first aspect and / or the motor in any one of the second aspect. Therefore, the laundry treating apparatus provided in the present application also has all the beneficial effects of the end cover in any one of the first aspect and / or the motor in any one of the second aspect, which will not be described here again.

[0033] In some embodiments, optionally, the laundry treating apparatus comprises a clothes dryer and a washing machine.

[0034] The additional aspects and advantages of the present application will become apparent from the following description, or will be appreciated by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0035] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, with reference to the following figures, wherein:

[0036] Figure 1 Fig. 1 shows a structural schematic diagram of an end cover of one embodiment of the present application;

[0037] Figure 2 Fig. 2 shows a structural schematic diagram of the end cover of one embodiment of the present application;

[0038] Figure 3 Fig. 3 shows a structural schematic diagram of the end cover of one embodiment of the present application;

[0039] Figure 4 Fig. 4 shows a structural schematic diagram of the end cover of one embodiment of the present application;

[0040] Figure 5 Fig. 5 shows a partial structural schematic diagram of a motor in the related art.

[0041] In the figures, Figures 1 to 4 The correspondence between the reference signs and the component names in the figures is as follows:

[0042] 1 end cover, 10 end cover body, 102 mounting protrusion, 1022 limiting portion, 1024 flange structure, 1026 limiting protrusion, 1028 guide surface, 104 bottom wall, 106 peripheral wall, 11 elastic ring, 112 mounting groove.

[0043] In the figures, Figure 5 The correspondence between the reference signs and the component names in the figures is as follows:

[0044] 1' end cover, 2' damping rubber ring, 3' positioning member. DETAILED DESCRIPTION

[0045] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be described in further detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0046] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other manners different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0047] Reference will now be made to the following Figures 1 to 4 descriptions of end covers, motors and laundry treating apparatuses according to some embodiments of the present application.

[0048] According to one embodiment of the first aspect of the present application, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the first aspect of the present application proposes an end cover 1 comprising an end cover body 10 and an elastic ring 11. The end cover body 10 is provided with a mounting protrusion 102. The elastic ring 11 is sleeved on the outer periphery of the mounting protrusion 102 and can rotate relative to the mounting protrusion 102. The mounting protrusion 102 is provided with a limiting portion 1022 for limiting the axial movement of the elastic ring 11. The inner periphery of the elastic ring 11 is provided with a mounting groove 112, which penetrates through both ends of the elastic ring 11. The elastic ring 11 is fitted on the outer periphery of the mounting protrusion 102 through the mounting groove 112.

[0049] The end cover 1 provided by the utility model, comprising an end cover body 10 and an elastic ring 11. The end cover body 10 is provided with a mounting protrusion 102, the elastic ring 11 is sleeved on the outer periphery of the mounting protrusion 102, the mounting protrusion 102 is provided with a limiting portion 1022 for limiting the axial movement of the elastic ring 11, thereby preventing the elastic ring 11 from separating from the mounting protrusion 102 and ensuring the stability of the elastic ring 11. Meanwhile, the inner periphery of the elastic ring 11 is provided with a mounting groove 112, the mounting groove 112 penetrates through both ends of the elastic ring 11, so that the elastic ring 11 can be sleeved on the outer periphery of the mounting protrusion 102 through the cooperation of the mounting groove 112 and the limiting portion 1022, thereby limiting the elastic ring 11 by the limiting portion 1022. Specifically, when mounting the elastic ring 11, since the mounting groove 112 is provided through both ends of the elastic ring 11, the mounting groove 112 can be aligned with the limiting portion 1022 first, then the elastic ring 11 is pressed, so that the elastic ring 11 slides along the mounting protrusion 102 to the end cover body 10 under the cooperation of the limiting portion 1022 and the mounting groove 112, thereby making the elastic ring 11 finally sleeved on the mounting protrusion 102. After the elastic ring 11 is sleeved on the mounting protrusion 102 (as shown in Figure 2 , after the elastic ring 11 is sleeved on the mounting protrusion 102), the elastic ring 11 is rotated to make the mounting groove 112 dislocated with the limiting portion 1022 (as shown in Figure 3 , after the elastic ring 11 is rotated), thereby realizing the limiting of the elastic ring 11 by the limiting portion 1022. Compared with the related art, this kind of setting does not need to additionally set a limiting piece to limit the elastic ring 11, so that the use of parts can be saved, thereby reducing the cost. Since the elastic ring 11 can rotate relative to the mounting protrusion 102, the part can meet the use requirement of limiting, and also meets the requirement that the elastic ring 11 rotates freely in the circumferential direction so as to flexibly adjust the position during the installation of the whole machine.

[0050] In some embodiments, optionally, the limiting portion 1022 is arranged at one end of the mounting protrusion 102 away from the end cover body 10 and extends outwardly along the radial direction of the elastic ring 11.

[0051] In these embodiments, the limiting portion 1022 can be arranged at one end of the mounting protrusion 102 away from the end cover body 10 and extend outwardly along the radial direction of the elastic ring 11, that is, the limiting portion 1022 is arranged to protrude from the outer surface of the mounting protrusion 102, so that the elastic ring 11 can be axially limited by the limiting portion 1022.

[0052] In some embodiments, optionally, as shown in Figure 2 and Figure 3 , the mounting protrusion 102 is a hollow pipe, one end of the mounting protrusion 102 away from the end cover body 10 is formed with an outwardly bent flange structure 1024, and the flange structure 1024 is the limiting portion 1022.

[0053] In some embodiments, the mounting protrusion 102 is a hollow tube, and one end of the mounting protrusion 102 is bent outward to form a flange structure 1024 as the limiting portion 1022 away from the end cover body 10. This structure utilizes the shape characteristics of the material itself to achieve the limiting function. The flange structure 1024 has a certain guiding effect while providing axial limiting, facilitating the installation of the elastic ring 11, and compared with the separately arranged limiting portion 1022, it reduces the number of parts and the assembly difficulty and cost.

[0054] In some embodiments, optionally, the flange structure 1024 is a plurality of flange structures 1024, and the plurality of flange structures 1024 are arranged in a circumferential direction of the mounting protrusion 102.

[0055] In some embodiments, optionally, as shown in Figure 4 the limiting portion 1022 is a limiting protrusion 1026 arranged on the outer periphery of the mounting protrusion 102.

[0056] In some embodiments, the limiting portion 1022 is arranged as the limiting protrusion 1026, which is simple in structure and easy to manufacture. The limiting protrusion 1026 can effectively block and limit the elastic ring 11, while ensuring the axial limiting function of the elastic ring 11, reducing the complexity of the parts and the manufacturing cost, and in the process of rotation of the elastic ring 11, the contact mode between the limiting protrusion 1026 and the elastic ring 11 is relatively simple, reducing the frictional resistance, which is conducive to the flexible rotation of the elastic ring 11.

[0057] In some embodiments, optionally, the mounting groove 112 and the limiting portion 1022 are in interference fit.

[0058] In some embodiments, the mounting groove 112 and the limiting portion 1022 are in interference fit, which ensures the stability of the elastic ring 11 after installation, effectively prevents the elastic ring 11 from falling off by itself without external force, ensures that the elastic ring 11 is always in the correct installation position during the operation of the motor, maintains good damping effect, reduces the vibration noise and adverse effects on other parts of the motor that may be caused by the loosening of the elastic ring 11.

[0059] In some embodiments, optionally, the elastic ring 11 includes at least one of a rubber piece, a polyurethane piece, and a silica gel piece.

[0060] In the embodiments, the elastic ring 11 is made of at least one of rubber, polyurethane and silica gel, which all have good elasticity and damping performance. The rubber has good comprehensive elasticity and damping characteristics, and can effectively absorb vibration energy. The polyurethane has high strength and good elasticity, and can adapt to different damping requirements. The silica gel has excellent high-temperature resistance and low-temperature resistance, and can maintain elasticity in a wide temperature range, ensuring reliable damping effect of the motor in different working conditions and ambient temperatures, improving the stability and reliability of the motor operation, and prolonging the service life of the motor.

[0061] In some embodiments, optionally, the number of the mounting grooves 112 corresponds to the number of the limiting portions 1022 one by one, the number of the mounting grooves 112 is a plurality, the number of the limiting portions 1022 is a plurality, and the plurality of limiting portions 1022 are arranged along the circumferential direction of the mounting protrusion 102 (the direction indicated by A in the figure). Figure 2

[0062] In the embodiments, the number of the mounting grooves 112 corresponds to the number of the limiting portions 1022 one by one, and both are a plurality and arranged along the circumferential direction of the mounting protrusion 102, so that the elastic ring 11 is more evenly stressed in the circumferential direction. The plurality of limiting portions 1022 can limit the elastic ring 11 from a plurality of points, prevent it from shifting or twisting in the circumferential direction, and ensure the stability of the elastic ring 11 in the circumferential direction, so as to better play its damping role, and also help the accurate cooperation between the elastic ring 11 and the mounting protrusion 102 during installation, improving the assembly efficiency and quality.

[0063] In some embodiments, optionally, the number of the mounting grooves 112 is two, and the number of the limiting portions 1022 is two, the two mounting grooves 112 are symmetrically arranged, and the two limiting portions 1022 are symmetrically arranged.

[0064] In some embodiments, optionally, the end cover 1 further comprises a guide surface 1028 arranged along the circumferential direction of the mounting protrusion 102 at the limiting portion 1022, for guiding the installation of the elastic ring 11.

[0065] In the embodiments, the guide surface 1028 arranged along the circumferential direction of the mounting protrusion 102 at the limiting portion 1022 can play a guiding role when the elastic ring 11 is installed. It can make the elastic ring 11 more smoothly fit into the mounting protrusion 102 and cooperate with the limiting portion 1022, reduce the jamming and friction during installation, reduce the risk of damage to the elastic ring 11 and the mounting protrusion 102, and improve the assembly efficiency and quality.

[0066] In some embodiments, optionally, the end cover body 10 comprises a bottom wall 104, and the mounting protrusion 102 is arranged on one side of the bottom wall 104; a peripheral wall 106 arranged on the other side of the bottom wall 104 and located at the edge of the bottom wall 104. ​

[0067] In the embodiments, the end cover body 10 comprises a bottom wall 104 and a peripheral wall 106. The bottom wall 104 is used to carry the mounting protrusion 102 and is connected and fixed with other components of the end cover 1. The peripheral wall 106 is arranged at the other side edge of the bottom wall 104, and the overall strength and stability of the end cover body 10 are enhanced. Such a structure can provide a stable and reliable basis for the installation of the elastic ring 11 and the overall operation of the motor, ensure that the end cover body 10 can withstand various forces without deformation or damage during the operation of the motor, ensure the normal work of the elastic ring 11 and other components of the motor, and improve the reliability and durability of the motor.

[0068] According to one embodiment of the first aspect of the utility model, the first aspect of the utility model provides a motor, the motor or the end cover outside has the limit feature (the mounting protrusion 102) that prevents the axial movement of rubber ring (elastic ring 11). One or more strip-shaped cutouts (mounting groove 112) are formed on the damping rubber ring (elastic ring 11), after the damping rubber ring is assembled in place with the motor through the strip-shaped cutout, after rotating an angle, the limit feature will clamp the damping rubber ring, so that it cannot move axially, thereby achieving the effect of fixation.

[0069] In some embodiments, optionally, the limit feature can be arranged on different components such as a stretch end cover, an aluminum end cover, a BMC (Bulk Molding Compound) body or a motor body, and the number thereof can be one or more.

[0070] In some embodiments, optionally, the size of the strip-shaped cutout on the damping rubber ring is matched with the size of the limit feature in an interference fit, so that the damping rubber ring cannot fall off by itself without external force after being installed.

[0071] The damping rubber ring fixing structure is combined with the end cover or the motor body in the application, so that one component is reduced, the product competitiveness of the motor is improved, and the cost is reduced.

[0072] The second aspect of the utility model provides a motor, comprising: the end cover 1 in any one of the embodiments of the first aspect.

[0073] The motor provided by the application comprises the end cover 1 in any one of the embodiments of the first aspect. Therefore, the motor provided by the application also has all the beneficial effects of the end cover 1 in any one of the embodiments of the first aspect, which will not be described here.

[0074] In some embodiments, optionally, the motor is a single-phase asynchronous motor.

[0075] In the embodiments, the motor is a single-phase asynchronous motor, which is mature in principle, simple in structure, and low in cost, and is widely used in daily household appliances such as clothes dryers. The end cover 1 of the present application can effectively solve the fixing problem of the damping rubber ring when applied to the single-phase asynchronous motor without increasing too much cost, improve the damping performance and overall reliability of the single-phase asynchronous motor in the clothes dryer, make it more competitive in market competition, and be conducive to the promotion and application of the product.

[0076] The third aspect of the present application provides a clothes treatment device, comprising: the end cover 1 in any one of the embodiments of the first aspect; and / or the motor in any one of the embodiments of the second aspect.

[0077] The clothes treatment device provided by the present application comprises the end cover 1 in any one of the embodiments of the first aspect and / or the motor in any one of the embodiments of the second aspect. Therefore, the clothes treatment device provided by the present application also has all the beneficial effects of the end cover 1 in any one of the embodiments of the first aspect and / or the motor in any one of the embodiments of the second aspect, which will not be described here.

[0078] In some embodiments, optionally, the clothes treatment device comprises a clothes dryer and a washing machine.

[0079] In the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0080] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An end cap characterized by, Comprising: an end cover body, an installation protrusion is arranged on the end cover body; an elastic ring, the elastic ring is sleeved on the outer periphery of the installation protrusion and can rotate relative to the installation protrusion; a limiting portion for limiting the axial movement of the elastic ring is arranged on the installation protrusion, an installation groove is arranged on the inner periphery of the elastic ring, the installation groove penetrates both ends of the elastic ring, and the elastic ring is fitted and sleeved on the outer periphery of the installation protrusion through the installation groove.

2. The end cover according to claim 1, wherein the limiting portion is arranged at one end of the installation protrusion away from the end cover body and extends outward in the radial direction of the elastic ring.

3. The end cover according to claim 1, wherein the installation protrusion is a hollow pipe, and a flange structure bent outward is formed at one end of the installation protrusion away from the end cover body, and the flange structure is the limiting portion.

4. The end cover according to claim 1, wherein the limiting portion is a limiting protrusion arranged on the outer periphery of the installation protrusion.

5. The end cover according to claim 1, wherein the installation groove and the limiting portion are in interference fit.

6. The end cover according to claim 1, wherein the elastic ring comprises at least one of a rubber piece, a polyurethane piece and a silica gel piece.

7. The end cover according to any one of claims 1 to 6, wherein the number of the installation grooves corresponds to the number of the limiting portions one by one, the number of the installation grooves is multiple, the number of the limiting portions is multiple, and the multiple limiting portions are arranged at intervals along the circumferential direction of the installation protrusion.

8. The end cap of any one of claims 1 to 6, wherein, Further comprising: a guide surface arranged on the limiting portion along the circumferential direction of the installation protrusion for guiding the installation of the elastic ring.

9. An electric machine characterized by Comprising: the end cover according to any one of claims 1 to 8. 10.A laundry treating apparatus, characterized by, Comprising: the end cover according to any one of claims 1 to 8; and / or the motor according to claim 9.

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