End cover, motor and household appliance

Abstract

The utility model discloses an end cover, a motor and a household electrical appliance, and relates to the technical field of motors. The end cover comprises a bearing part, an abutting part, a positioning flange and a reinforcing part, a bearing chamber is formed by arranging the bearing part, the bearing chamber is used for installing a bearing, and a rotating shaft of the motor is connected with the bearing. The abutting part is connected to the bearing part and arranged around the bearing chamber, and the abutting part is in abutting fit with the end part of the stator, so that dust, water and the like are effectively prevented from entering the motor. And the positioning flange is connected to the edge of the abutting part and is designed to surround the abutting part, and the positioning flange is used for being in positioning fit with the end part of the stator so as to determine the relative position of the end cover and the motor in the axial direction. The reinforcing part is arranged on at least one of the bearing part, the abutting part and the positioning flange, so that the overall strength and rigidity of the end cover can be improved, and meanwhile, the noise of motor operation can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to an end cap, a motor, and a household appliance. Background Technology

[0002] The encapsulated motor has an end cap at the rear end, which protects the motor and also serves to mount bearings. The bearings cooperate with the motor shaft to improve the smoothness of shaft rotation. However, the end caps in related technologies have low overall strength and rigidity, and their natural frequency is close to the motor's operating frequency, causing resonance between the end cap and the motor. This increased amplitude leads to increased motor noise. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an end cap that can improve the overall strength and rigidity of the end cap, while reducing the noise of the motor operation.

[0004] This utility model also proposes a motor and a household appliance having the above-mentioned end cap.

[0005] According to a first aspect of the present invention, an end cover is used for a motor having a stator. The end cover includes: a bearing portion forming a bearing chamber; an abutment portion connected to the bearing portion and disposed around the bearing chamber, the abutment portion being used to abut against an end of the stator; a positioning flange connected to the abutment portion and disposed around the abutment portion, the positioning flange being used to position and cooperate with an end of the stator; and a reinforcing portion disposed at at least one of the bearing portion, the abutment portion, and the positioning flange.

[0006] The end cap according to the embodiment of this utility model has at least the following beneficial effects:

[0007] A bearing housing is formed by setting up a bearing section, which is used to install the bearing, and the motor shaft is connected to the bearing. An abutment section is connected to the bearing section and surrounds the bearing housing. The abutment section and the end of the stator abut against each other, effectively reducing the entry of dust, water, etc., into the motor's interior. A positioning flange is connected to the edge of the abutment section and surrounds it. The positioning flange is used to position and cooperate with the end of the stator to determine the relative axial position of the end cover and the motor. A reinforcing section is provided at least one of the bearing section, the abutment section, and the positioning flange, thus improving the overall strength and rigidity of the end cover while reducing motor operating noise.

[0008] According to some embodiments of the present invention, the reinforcing part includes a reinforcing rib, which is disposed on the outer end face of the bearing part.

[0009] According to some embodiments of the utility model, the outer end face of bearing part protrudes outward to form the reinforcing rib, and the reinforcing rib is arranged around the central axis of the bearing chamber.

[0010] According to some embodiments of the utility model, the reinforcing part comprises a protruding rib, the protruding rib is arranged on the outer wall of the abutting part, and the protruding rib is arranged in multiple and is arranged around the bearing chamber.

[0011] According to some embodiments of the utility model, the inner wall of the abutting part is recessed, and the corresponding outer wall of the abutting part protrudes to form the protruding rib.

[0012] According to some embodiments of the utility model, the reinforcing part comprises a reinforcing flange, and the reinforcing flange is connected to the edge of the positioning flange.

[0013] According to some embodiments of the utility model, the edge of the positioning flange is bent to form the reinforcing flange.

[0014] According to some embodiments of the utility model, the end cover further comprises a connecting part connected to the positioning flange, the connecting part is arranged in multiple and is arranged along the circumferential direction of the positioning flange, the connecting part is used for fixedly connecting with the stator, the positioning flange and the connecting part are an integral structure, and the reinforcing flange is configured as a continuous ring and is arranged along the edge of the positioning flange and the connecting part.

[0015] According to some embodiments of the utility model, the abutting part comprises a first annular sheet and a second annular sheet, the first annular sheet is connected to the edge of the bearing part and extends along the radial direction of the bearing chamber, and the second annular sheet is connected to the edge of the first annular sheet and is arranged in the direction away from the stator.

[0016] According to the motor of the second aspect embodiment of the utility model, the end cover of the first aspect embodiment is installed on the end part of the stator, the abutting part and the inner wall of the stator are in abutting cooperation, and the positioning flange and the end face of the stator are in positioning cooperation.

[0017] According to the motor of the utility model embodiment, at least the following beneficial effects are achieved.

[0018] By adopting the end cover of the first aspect embodiment, the end cover forms a bearing chamber by arranging a bearing part, the bearing chamber is used for installing a bearing, and a rotating shaft of the motor is connected with the bearing. An abutting part is connected to the bearing part and arranged around the bearing chamber, the abutting part is abutted with an end part of the stator, and dust, water and the like are effectively prevented from entering the inside of the motor. A positioning flange is connected to an edge of the abutting part and arranged around the abutting part, the positioning flange is used for positioning cooperation with the end part of the stator, so as to determine the relative position of the end cover and the motor in the axial direction. A reinforcing part is arranged at least one of the bearing part, the abutting part and the positioning flange, so that the overall strength and rigidity of the end cover can be improved, and the noise of the motor during operation can be reduced.

[0019] According to the household appliance of the third aspect embodiment of the present application, the motor is the motor as described in the above embodiments.

[0020] According to the household appliance of the third aspect embodiment of the present application, the motor is the motor as described in the above embodiments.

[0021] By adopting the motor of the second aspect embodiment, the end cover of the motor forms a bearing chamber by arranging a bearing part, the bearing chamber is used for installing a bearing, and a rotating shaft of the motor is connected with the bearing. An abutting part is connected to the bearing part and arranged around the bearing chamber, the abutting part is abutted with an end part of the stator, and dust, water and the like are effectively prevented from entering the inside of the motor. A positioning flange is connected to an edge of the abutting part and arranged around the abutting part, the positioning flange is used for positioning cooperation with the end part of the stator, so as to determine the relative position of the end cover and the motor in the axial direction. A reinforcing part is arranged at least one of the bearing part, the abutting part and the positioning flange, so that the overall strength and rigidity of the end cover can be improved, and the noise of the motor during operation can be reduced.

[0022] Additional aspects and advantages of the present application will be described in the following description and part will become apparent from the following description, or will be learned from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0024] Figure 1 is a structural schematic diagram of a motor of an embodiment of the present application;

[0025] Figure 2 is a structural schematic diagram of a motor hidden end cover of an embodiment of the present application;

[0026] Figure 3 is a sectional view of a motor of an embodiment of the present application;

[0027] Figure 4 is a structural schematic diagram of an end cover of an embodiment of the present application;

[0028] Figure 5is a sectional view of the end cover of an embodiment of the utility model.

[0029] Reference signs:

[0030] End cover 1000;

[0031] Body 100;Bearing part 110;Bearing chamber 111;Butt joint part 120;First annular sheet 121;Second annular sheet 122;Positioning flange 130;Connecting part 140;First connecting hole 141;Positioning hole 142;

[0032] Strengthening part 200;Stiffener 210;Convex rib 220;Strengthening flange 230;

[0033] Motor 2000;

[0034] Plastic-coated part 2100;Stop notch boss 2200;Positioning column 2210;Stator core 2300;Winding 2310;Insulating frame 2320;Mounting seat 2400;Second connecting hole 2410;Convex column 2500;Stator 2600. DETAILED DESCRIPTION

[0035] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0036] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model.

[0037] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. is not included in the number, above, below, etc. is included in the number. If it is described to the first, the second is only used for distinguishing the technical features for the purpose, and therefore cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0038] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection, etc. should be understood broadly, and the person skilled in the art can determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0039] Referring to Figure 1 , Figure 2 and Figure 3 , the motor 2000 of an embodiment of the utility model, motor 2000 includes stator 2600 and end cover 1000, stator 2600 includes stator core 2300 and plastic part 2100, stator core 2300 is installed with insulating frame 2320, winding 2310 is around the insulating frame 2320, plastic part 2100 is used for plastic package stator core 2300, insulating frame 2320 and winding 2310. Plastic part 2100 is annular structure, the rear end of plastic part 2100 is open end, open end is equipped with stop mouth boss 2200, stop mouth boss 2200 protrudes from the rear end surface of plastic part 2100 and is annular, stop mouth boss 2200 can be continuous annular structure, also can be discontinuous annular structure, namely including multiple interval setting ring segment. End cover 1000 is fixedly connected to the rear end surface of plastic part 2100 and and the inner side wall of stop mouth boss 2200 abuts and cooperates, plays the role of protection.

[0040] In order to improve the rigidity of end cover 1000, referring to Figure 1 and Figure 4 , the end cover 1000 of the utility model embodiment includes body 100 and reinforcing portion 200, the body 100 includes bearing portion 110, abutment portion 120, positioning flange 130 and connecting portion 140, the inner side of bearing portion 110 is recessed to form bearing chamber 111, the bearing chamber 111 is used for installing bearing, the one end of the motor 2000 and bearing cooperates. Abutment portion 120 is connected to the edge of bearing portion 110 and is arranged around bearing chamber 111, and the abutment portion 120 is used for abutting and cooperating with the end portion of the stator 2600, for example, the abutment portion 120 and the inner side wall of the stop mouth boss 2200 abut and cooperate, thereby avoiding dust, water and the like from entering the inside of the motor 2000 through the gap between the abutment portion 120 and the stop mouth boss 2200, to improve the safety and stability of the motor 2000 during operation. Positioning flange 130 is connected to the edge of abutment portion 120 and is arranged around abutment portion 120, and the positioning flange 130 is used for positioning and cooperating with the end portion of the stator 2600, for example, the positioning flange 130 and the end face of the stop mouth boss 2200 are positioned and cooperated, thereby determining the axial position between the end cover 1000 and the motor 2000. Connecting portion 140 is connected to the positioning flange 130, and the connecting portion 140 is used for fixedly connecting with the plastic part 2100, thereby fixing the relative position between the end cover 1000 and the plastic part 2100.

[0041] The reinforcing portion 200 is arranged at least one of the bearing portion 110, the abutting portion 120 and the positioning flange 130. For example, the reinforcing portion 200 is arranged only at the bearing portion 110; or the reinforcing portion 200 is arranged only at the abutting portion 120; or the reinforcing portion 200 is arranged only at the positioning flange 130; or the reinforcing portion 200 is arranged at the bearing portion 110, the abutting portion 120 and the positioning flange 130 simultaneously. It can be understood that the reinforcing portion 200 arranged at least one of the bearing portion 110, the abutting portion 120 and the positioning flange 130 can improve the overall strength and rigidity of the end cover 1000, and at the same time can reduce the noise of the motor 2000 in operation.

[0042] Table 1: Comparison of natural frequencies of the end cover 1000 with the reinforcing portion 200 arranged at the bearing portion 110, the abutting portion 120 and the positioning flange 130 and the end cover 1000 without the reinforcing portion 200

[0043]

[0044] Table 2: Comparison of 8th order electromagnetic noise of the end cover 1000 with the reinforcing portion 200 arranged at the bearing portion 110, the abutting portion 120 and the positioning flange 130 and the end cover 1000 without the reinforcing portion 200

[0045]

[0046] According to the above table 1, after the reinforcing portion 200 is arranged at the bearing portion 110, the abutting portion 120 and the positioning flange 130, the natural frequencies in the second order mode, the third order mode, the fourth order mode, the fifth order mode and the sixth order mode are all higher than those of the end cover 1000 without the reinforcing portion 200, that is, the rigidity of the end cover 1000 is improved. Among them, the natural frequency of the motor 2000 itself is about 1800Hz, and the natural frequencies of the end cover 1000 after arranging the reinforcing portion 200 are all staggered with 1800Hz, avoiding the resonance band of the motor 2000, which can effectively avoid the resonance of the end cover 1000 and the motor 2000. It should be noted that since the motor 2000 is an 8-pole 12-slot motor 2000, the 8th order electromagnetic noise can more accurately reflect the noise size of the motor 2000 in operation. From table 2, it can be seen that the noise without the reinforcing portion 200 is 45dB, and the noise after arranging the reinforcing portion 200 is reduced to 43dB, so the reinforcing portion 200 can effectively reduce the noise of the motor 2000 in operation and improve the user experience.

[0047] Reference Figure 4As shown, in the embodiment of the utility model, the reinforcing part 200 includes reinforcing ribs 210, and the reinforcing ribs 210 are arranged on the outer end surface of the bearing part 110. The outer end surface of the bearing part 110 is the end surface of the end of the bearing part 110 away from the bearing chamber 111. It can be understood that, since the bearing chamber 111 needs to be formed in the bearing part 110 to install the bearing, arranging the reinforcing ribs 210 on the outer end surface of the bearing part 110 can avoid the reinforcing ribs 210 occupying the space of the bearing chamber 111, so that the overall structure of the end cover 1000 is more compact, and the design is more reasonable. At the same time, arranging the reinforcing ribs 210 on the outer end surface of the bearing part 110 also facilitates the stamping forming of the reinforcing ribs 210, and improves the production efficiency. It should be noted that, as an alternative embodiment, the reinforcing ribs 210 can also be arranged on the inner end surface, the inner side surface or the outer side surface of the bearing part 110, which can also increase the overall rigidity and strength of the end cover 1000 and reduce the noise during the operation of the motor 2000.

[0048] Referring to Figure 4 and Figure 5 As shown, in the embodiment of the utility model, the outer end surface of the bearing part 110 is outwardly convex to form the reinforcing ribs 210, and the reinforcing ribs 210 are annular and arranged around the central axis of the bearing chamber 111. For example, through the stamping process, the inner end surface of the bearing part 110 is recessed, and the outer end surface is convex to form the reinforcing ribs 210. Therefore, the reinforcing ribs 210 and the bearing part 110 are integrally formed, which can improve the stability and reliability of the connection between the reinforcing ribs 210 and the bearing part 110, and reduce the risk of loosening and falling off of the reinforcing ribs 210 and the bearing part 110. It can be understood that, arranging the reinforcing ribs 210 on the outer end surface of the bearing part 110 can avoid the reinforcing ribs 210 occupying the space of the bearing chamber 111, so that the overall structure of the end cover 1000 is more compact, and the design is more reasonable. The middle part of the outer end surface of the bearing part 110 is provided with a through hole, the through hole and the bearing chamber 111 are coaxially arranged and in communication, and the reinforcing ribs 210 are arranged around the edge of the through hole, which is beneficial to the stamping forming of the reinforcing ribs 210 and has high production efficiency.

[0049] Referring to Figure 4As shown, in the embodiment of the utility model, the reinforcing part 200 includes the convex rib 220, the convex rib 220 is arranged at the abutting part 120, and the convex rib 220 is provided with multiple and is arranged at intervals around the bearing chamber 111. For example, the convex rib 220 is arranged at the outer wall of the abutting part 120 to avoid occupying the space inside the motor 2000. As an alternative embodiment, the convex rib 220 can also be arranged at the inner wall of the abutting part 120, and the appropriate setting position is selected according to the actual situation. It should be noted that the inner wall of the abutting part 120 refers to the side towards the inside of the motor 2000, and the outer wall of the abutting part 120 refers to the side away from the inside of the motor 2000. The convex rib 220 can be provided with six, and the six convex ribs 220 are uniformly and spacedly arranged along the circumference of the bearing chamber 111. Of course, the convex rib 220 can also be other quantities, for example, one, two, three, four, etc., and the appropriate quantity is selected according to the actual situation. By arranging the convex rib 220 on the abutting part 120, the overall rigidity and strength of the abutting part 120 can be enhanced, and arranging multiple convex ribs 220 can further improve the strength of the abutting part 120, effectively avoiding the deformation and bending of the convex part. At the same time, it can also reduce the resonance with the motor 2000 to reduce the noise of the motor 2000 during operation.

[0050] Referring to Figure 4 and Figure 5 As shown, in the embodiment of the utility model, the inner wall of the abutting part 120 is recessed, and the outer wall of the corresponding position of the abutting part 120 is outwardly convex to form the convex rib 220. Therefore, the convex rib 220 can be formed on the abutting part 120 through the stamping process, which can improve the production efficiency. Since the stamping process is adopted, the scheme of designing multiple convex ribs 220 is beneficial to the molding of each convex rib 220 and improves the rationality of the structure design of the end cover 1000.

[0051] Referring to Figure 4 As shown, in the embodiment of the utility model, the reinforcing part 200 includes the reinforcing flange 230, and the reinforcing flange 230 is arranged at the edge of the positioning flange 130. For example, the reinforcing flange 230 is arranged around the positioning flange 130, and the reinforcing flange 230 and the positioning flange 130 are integrally formed, which can improve the stability and reliability of the connection between the reinforcing flange 230 and the positioning flange 130. After arranging the reinforcing flange 230, the overall strength and rigidity of the positioning flange 130 can be improved, effectively reducing the resonance of the end cover 1000 and the motor 2000 and reducing the noise of the motor 2000 during operation.

[0052] Referring to Figure 4 and Figure 5As shown, in the embodiment of the utility model, the edge of the positioning flange 130 is outwardly bent to form a reinforcing flange 230, and the outward bending refers to the direction away from the motor 2000, that is, the backward bending. For example, the edge of the positioning flange 130 can be outwardly bent through a bending process during processing, thereby forming the reinforcing flange 230. With the above scheme, the reinforcing flange 230 has low difficulty in production and manufacturing, high production efficiency, and can effectively improve the overall strength and rigidity of the positioning flange 130 and reduce the noise during operation of the motor 2000. It should be noted that in another embodiment, the edge of the positioning flange 130 is inwardly bent to form a reinforcing flange 230, which can also improve the overall strength and rigidity of the positioning flange 130.

[0053] Referring to Figure 4 As shown, in the embodiment of the utility model, the end cover 1000 further comprises a connecting portion 140 connected to the positioning flange 130, and the connecting portion 140 and the positioning flange 130 are an integral structure. The connecting portion 140 is provided with a plurality of and is arranged along the circumference of the positioning flange 130, and the connecting portion 140 is used for fixedly connecting with the stator 2600. The reinforcing flange 230 is configured as a continuous annular structure and is arranged along the edge of the positioning flange 130 and the connecting portion 140. Therefore, the strength and rigidity of the connecting portion 140 and the positioning flange 130 can be increased at the same time, and the noise during operation of the motor can be reduced.

[0054] Referring to Figure 4 And Figure 5 As shown, in the embodiment of the utility model, the inner side of the body 100 is recessed, the outer side is protruded to form a bearing portion 110, and the bearing portion 110 and the abutting portion 120 are integrally formed. It should be noted that the inner side of the body 100 is the side facing the plastic-coated portion 2100, and the outer side is the side away from the plastic-coated portion 2100. For example, through a stamping process, one side of the middle part of the body 100 is recessed, and the other side is protruded to form the bearing portion 110. The processing efficiency can be improved, and the production cost can be reduced.

[0055] Referring to Figure 4 As shown, in the embodiment of the utility model, the abutting portion 120 comprises a first annular sheet 121 and a second annular sheet 122, the first annular sheet 121 is connected to the edge of the bearing portion 110 and extends along the radial direction of the bearing chamber 111, and the second annular sheet 122 is connected to the edge of the first annular sheet 121 and is arranged to extend in the direction away from the plastic-coated portion 2100. The first annular sheet 121 is provided with a reinforcing rib 220, and the second annular sheet 122 is used for abutting and cooperating with the side wall of the stop flange boss 2200. With the above scheme, the structure of the abutting portion 120 is simple and convenient to manufacture.

[0056] Referring to Figure 4As shown, the embodiment of the utility model, connecting portion 140 is equipped with multiple and interval setting along the circumference of positioning flanging 130. For example, connecting portion 140 is equipped with three, three connecting portion 140 are connected in positioning flanging 130. Certainly, connecting portion 140 can also be other quantity, for example, one, two, four, five etc. Wherein, refer to Figure 5 And Figure 5 As shown, connecting portion 140 is equipped with first connecting hole 141, and the plastic part 2100 includes mounting seat 2400, and mounting seat 2400 extends along the axial direction of motor 2000. The number of mounting seat 2400 is same with the number of connecting portion 140, and the rear end of mounting seat 2400 is provided with second connecting hole 2410. When installing end cover 1000, first connecting hole 141 and second connecting hole 2410 are aligned, then screw or bolt is arranged in first connecting hole 141 and second connecting hole 2410, so that the relative position of end cover 1000 and plastic part 2100 is fixed.

[0057] Refer to Figure 4 And Figure 2 As shown, the embodiment of the utility model, in order to facilitate the positioning alignment of first connecting hole 141 and second connecting hole 2410, positioning hole 142 is further arranged in one of connecting portion 140, positioning column 2210 is arranged on the end face of stop flange 2200, and positioning column 2210 is inserted into positioning hole 142, so that the corresponding connecting portion 140 and the corresponding mounting seat 2400 are connected, so as to improve the assembly efficiency of end cover 1000.

[0058] Refer to Figure 3 And Figure 3 As shown, the motor 2000 of one embodiment of the utility model, the motor 2000 can be drum motor 2000, the motor 2000 includes stator 2600 and the end cover 1000 of the above embodiment, the stator 2600 includes stator core 2300 and plastic part 2100, the stator core 2300 is installed with insulation frame 2320, and winding 2310 is arranged on insulation frame 2320, and plastic part 2100 is used for plastic packaging stator core 2300, insulation frame 2320 and winding 2310. Plastic part 2100 is annular structure, and the opening end of plastic part 2100 is provided with stop flange 2200, and stop flange 2200 protrudes from the rear end face of plastic part 2100 and is annular. End cover 1000 and the opening end of plastic part 2100 are fixedly connected and cover the opening end, and the abutting portion 120 and the inner wall of the stop flange 2200 are transitionally matched.

[0059] The utility model discloses an end cover 1000 of motor 2000, adopt the above -mentioned embodiment, form bearing chamber 111 through setting the bearing part 110 of body 100, and bearing chamber 111 is used to install bearing, the rotating shaft of motor 2000 is connected with bearing, to improve the fluency of rotating shaft rotation. The abutment portion 120 is connected to the edge of bearing part 110 and is set around bearing chamber 111, the abutment portion 120 is inserted in the stop nose boss 2200 of motor 2000 and and the inner wall of stop nose boss 2200 abutment cooperation, effectively reduce the dust, water through the gap between stop nose boss 2200 and abutment portion 120 into the inside of motor 2000. The positioning flanging 130 is connected to the edge of abutment portion 120 and is designed around abutment portion 120, and the positioning flanging 130 is used for and the end surface positioning cooperation of stop nose boss 2200, to determine the relative position of end cover 1000 and motor 2000 in the axial direction. The reinforcing portion 200 is set in at least one of bearing part 110, abutment portion 120 and positioning flanging 130, so that the overall strength and rigidity of end cover 1000 can be improved, and the noise of motor 2000 operation can be reduced.

[0060] Referring to Figure 4 Figure 1 Figure 2 Figure 2 As shown in the figure, in the embodiment of the utility model, the rear end face of the plastic-coated part 2100 is provided with a protruding column 2500 near the mounting seat 2400, for example, two protruding columns 2500 are provided and spaced apart. It can be understood that when the motor 2000 is applied to a washing machine, the motor 2000 needs to be connected to the washing machine through two legs, which are not shown in the figure. In order to facilitate the determination of the position of the leg, a hole for positioning cooperation with the protruding column 2500 is arranged on the leg. At the same time, in order to reduce the connection structure, the fastener connecting the end cover 1000 and the mounting seat 2400 can also be arranged on the leg, so that the end cover 1000 and the leg can be fixed at the same time, the number of parts is reduced, and the material cost is reduced.

[0061] Since the motor 2000 adopts all the technical solutions of the end cover 1000 of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0062] The household appliance of the embodiment of the utility model, including above embodiment's motor 2000, the household appliance can be washing machine, air conditioner, dehumidifier etc. The household appliance of the embodiment of the utility model adopts the motor 2000 of above embodiment, the end cover 1000 of motor 2000 forms bearing chamber 111 through setting the bearing part 110 of body 100, bearing chamber 111 is used to install bearing, the shaft of motor 2000 is connected with bearing, to improve the fluency of the rotation of the shaft. The abutment part 120 is connected to the edge of bearing part 110 and is set around bearing chamber 111, the abut part 120 is inserted in the stop nose boss 2200 of motor 2000 and is in abutment with the inner wall of the stop nose boss 2200, effectively reduces the dust, water etc. through the gap between the stop nose boss 2200 and the abutment part 120 into the inside of motor 2000. The positioning turn edge 130 is connected to the edge of abutment part 120 and is designed around abutment part 120, the positioning turn edge 130 is used to be positioned with the end surface of stop nose boss 2200, to determine the relative position of end cover 1000 and motor 2000 in the axial direction. The reinforcing part 200 is set in at least one of bearing part 110, abutment part 120 and positioning turn edge 130, so the overall strength and rigidity of end cover 1000 can be improved, and the noise of motor 2000 operation can be reduced.

[0063] Since the household appliance adopts all the technical solutions of the motor 2000 of the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0064] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge range possessed by those skilled in the art without departing from the purpose of the utility model.

Claims

1. An end cap for an electric machine having a stator, characterized by The end cover comprises: a bearing portion forming a bearing chamber; an abutting portion connected to the bearing portion and arranged around the bearing chamber, the abutting portion being used for abutting cooperation with an end portion of a stator; a positioning flange connected to the abutting portion and arranged around the abutting portion, the positioning flange being used for positioning cooperation with the end portion of the stator; a reinforcing portion arranged at at least one of the bearing portion, the abutting portion and the positioning flange.

2. The end cap of claim 1, wherein: The reinforcing portion comprises a reinforcing rib arranged at an outer end surface of the bearing portion.

3. The end cap of claim 2, wherein: The outer end surface of the bearing portion is outwardly convex to form the reinforcing rib, and the reinforcing rib is arranged around a central axis of the bearing chamber.

4. The end cap of claim 1, wherein: The reinforcing portion comprises a convex rib arranged at an outer wall of the abutting portion, and the convex rib is arranged in plurality and is arranged around the bearing chamber at intervals.

5. The end cap of claim 4, wherein: An inner wall of the abutting portion is concave, and a corresponding outer wall of the abutting portion is convex to form the convex rib.

6. The end cap of claim 1, wherein: The reinforcing portion comprises a reinforcing flange connected to an edge of the positioning flange.

7. The end cap of claim 6, wherein: The edge of the positioning flange is bent to form the reinforcing flange.

8. The end cap of claim 6, wherein: The end cover further comprises a connecting portion connected to the positioning flange, the connecting portion is arranged in plurality and is arranged at intervals along a circumferential direction of the positioning flange, the connecting portion is used for fixed connection with the stator, the positioning flange and the connecting portion are an integral structure, and the reinforcing flange is configured as a continuous ring and is arranged along edges of the positioning flange and the connecting portion.

9. The end cap of claim 1, wherein: The abutting portion comprises a first annular sheet connected to an edge of the bearing portion and extending along a radial direction of the bearing chamber, and a second annular sheet connected to an edge of the first annular sheet and arranged in a direction away from the stator.

10. An electric machine characterized by The end cover comprises: a stator; an end cover according to any one of claims 1 to 9, the end cover being mounted at an end portion of the stator, the abutting portion and an inner wall of the stator being in abutting cooperation, and the positioning flange and an end surface of the stator being in positioning cooperation.

11. Household appliance, characterized in that: The motor comprises the end cover according to claim 10.

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