Motor shell, motor and electrical equipment

Abstract

The utility model discloses a motor shell, a motor and electrical equipment, and relates to the technical field of motors. The motor shell comprises a shell body, the shell body comprises an end plate and an annular side plate, the annular side plate is connected to the periphery of the end plate, the shell body further comprises a plurality of installation lugs, the installation lugs are connected to the outer peripheral wall of the annular side plate and arranged at intervals in the circumferential direction of the annular side plate, and protrusions are arranged on at least one side of the installation lugs in the circumferential direction. The protrusions can enhance the structural strength of the mounting lugs, so that the mounting lugs can pass a drop test, the risk of breakage of the mounting lugs is reduced, and the mounting stability of the motor is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor housing, a motor, and electrical equipment. Background Technology

[0002] To meet the installation stability requirements of motors, drop tests are typically conducted at different heights and angles. However, in related technologies, the mounting lugs of the motor housing have relatively poor structural strength, leading to lug breakage during drop tests. Therefore, the structural strength of the mounting lugs in existing motor housings is insufficient to meet the installation stability requirements of motors. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a motor housing with high structural strength and resistance to breakage.

[0004] This utility model also provides a motor and electrical equipment having the above-mentioned motor housing.

[0005] According to a first aspect of the present invention, a motor housing includes a housing body, an end plate and an annular side plate, the annular side plate being connected to the periphery of the end plate, the housing body further including a plurality of mounting ears, the plurality of mounting ears being connected to the outer peripheral wall of the annular side plate and arranged at intervals along the circumferential direction of the annular side plate, and the mounting ears having a protrusion on at least one side along the circumferential direction.

[0006] The motor housing according to the first aspect of the present invention has at least the following beneficial effects: by providing a protrusion on at least one side wall of the annular side plate along the mounting ear in the circumferential direction, the structural strength of the mounting ear itself can be enhanced, so that the mounting ear can pass the drop test, reducing the risk of the mounting ear breaking, thereby effectively improving the installation stability of the motor.

[0007] According to some embodiments of the present invention, along the axial direction of the motor housing, the mounting ear has a first end wall and a second end wall facing away from each other, and the protrusion extends from the first end wall to the second end wall.

[0008] According to some embodiments of the present invention, the mounting ear is provided with a mounting groove, and a fixing plate is provided in the mounting groove. The fixing plate is connected to the groove wall at one end of the mounting groove along the axial direction of the motor housing. The protrusion extends from the wall at one end of the fixing plate along the axial direction to the wall at the other end, and the maximum thickness of the protrusion along the axial direction is greater than or equal to the maximum thickness of the fixing plate along the axial direction.

[0009] According to some embodiments of the present invention, the mounting ear has two opposite sidewalls, the protrusion is provided on the sidewall, and the maximum protrusion height of the protrusion relative to the sidewall is H, which satisfies: 2mm≤H≤4mm.

[0010] According to some embodiments of the present invention, along the radial direction of the annular side plate and from the inside out, the protrusion height of the protrusion first increases and then decreases, and the maximum protrusion height of the protrusion is located on the side of the protrusion closer to the annular side plate.

[0011] According to some embodiments of the present invention, the protrusion height of the protrusion decreases from the center of the protrusion along the radial direction of the annular side plate to both sides.

[0012] According to some embodiments of the present invention, the housing body further includes a heat dissipation structure, which is connected to the outer peripheral wall of the annular side plate and located between two adjacent mounting ears; along the circumferential direction, there is a gap between the protrusion and the heat dissipation structure; and / or, along the radial direction of the annular side plate, the protrusion and the heat dissipation structure are staggered.

[0013] According to some embodiments of the present invention, the protrusion is located at the midpoint of the mounting ear along the radial direction of the annular side plate.

[0014] The motor according to a second aspect embodiment of the present invention includes a stator assembly, a rotor assembly, and a motor housing according to a first aspect embodiment of the present invention. The motor housing has a mounting cavity, the stator assembly is fixedly mounted on the inner wall of the mounting cavity, and the rotor assembly is rotatably disposed in the inner hole of the stator assembly.

[0015] The motor according to the second aspect of the present invention has at least the following beneficial effects: compared with the prior art, the motor housing of the motor includes an end plate, an annular side plate and a plurality of mounting ears. The mounting ears have a protrusion on at least one side along the circumferential direction, which can enhance the structural strength of the mounting ears themselves, so that the mounting ears can pass the drop test, reduce the risk of the mounting ears breaking, and thus effectively improve the installation stability of the motor.

[0016] The electrical equipment according to the third aspect of the present invention includes the motor according to the second aspect of the present invention.

[0017] The electrical device according to the third aspect of the present invention has at least the following beneficial effects: Compared with the prior art, the motor of the electrical device includes a motor housing, the motor housing having an end plate, an annular side plate and a plurality of mounting ears. By providing protrusions on at least one side wall of the mounting ears along the circumference of the annular side plate, the structural strength of the mounting ears themselves can be enhanced, enabling the mounting ears to pass drop tests, reducing the risk of the mounting ears breaking, effectively improving the installation stability of the motor, thereby improving the working stability of the electrical device.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a perspective view of the motor housing in the first aspect of this utility model;

[0021] Figure 2 This is a bottom view of the motor housing in an embodiment of the first aspect of this utility model;

[0022] Figure 3 yes Figure 2 Enlarged view of point A in the image;

[0023] Figure 4 yes Figure 1 Enlarged view of point B in the image;

[0024] Figure 5 yes Figure 2 Enlarged view of point E in the image;

[0025] Figure 6 This is a partial side view of the motor housing in an embodiment of the first aspect of this utility model.

[0026] Figure label:

[0027] Housing body 100; end plate 101; annular side plate 102; mounting cavity 103; central axis 104;

[0028] Mounting ear 110; protrusion 111; first end wall 112; second end wall 113; mounting groove 114; fixing plate 115; side wall 116; connecting hole 117; first connecting surface 118; second connecting surface 119; pressure contact surface 120; opening 121; vent 122; limiting part 123; side side 124; circular surface 125;

[0029] Heat dissipation structure 130; heat dissipation fins 131; gaps 132. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, assembling, and cooperating should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] In related technologies, to meet the installation stability requirements of motors, drop tests are typically conducted on the motors at different heights and angles. However, in these technologies, due to the poor structural strength of the mounting lugs on the motor housing, the mounting lugs may break during drop tests. Therefore, the structural strength of the mounting lugs on existing motor housings is insufficient to meet the installation stability requirements of the motor.

[0035] Reference Figure 1 and Figure 2As shown, the first aspect of this utility model provides a motor housing, including a housing body 100. The housing body 100 includes an end plate 101 and an annular side plate 102. The annular side plate 102 is connected to the periphery of the end plate 101. The housing body 100 also includes a plurality of mounting ears 110. The plurality of mounting ears 110 are connected to the outer peripheral wall of the annular side plate 102 and are arranged at intervals along the circumference of the annular side plate 102. At least one side of the mounting ear 110 is provided with a protrusion 111 along the circumference. The protrusion 111 can enhance the structural strength of the mounting ear 110 itself, so that the mounting ear 110 can pass the drop test, reducing the risk of the mounting ear 110 breaking, thereby effectively improving the installation stability of the motor.

[0036] It should be noted that in this embodiment, the direction of the central axis 104 of the annular side plate 102 is defined as axial Y, the radial direction of the annular side plate 102 is defined as radial X, and the circumferential direction of the annular side plate 102 is defined as circumferential C.

[0037] It is understood that the mounting ears 110 extend outward along the radial direction X. In this embodiment, four mounting ears 110 are provided, and the four mounting ears 110 are arranged at equal intervals along the circumferential direction C. It is also understood that along the circumferential direction C, the mounting ears 110 have two opposite sidewalls 116, and protrusions 111 are provided on the sidewalls 116 and extend outward from the sidewalls 116, which helps to improve the structural strength of the mounting ears 110.

[0038] In some embodiments, each of the four mounting ears 110 has a protrusion 111 on its opposite side walls 116.

[0039] In some embodiments, each of the four mounting ears 110 is provided with a protrusion 111, including the following further embodiments: along the circumferential direction C, the same sidewall 116 of the four mounting ears 110 is provided with a protrusion 111; along the circumferential direction C, the sidewalls 116 on different sides of two adjacent mounting ears 110 are provided with protrusions 111.

[0040] In some embodiments, along the circumferential direction C, the number of protrusions 111 provided on two adjacent mounting ears 110 is different. One mounting ear 110 has a protrusion 111 on either side wall 116, while the other mounting ear 110 has protrusions 111 on both side walls 116.

[0041] Reference Figure 3It is understandable that the protrusion 111 is located on the side wall 116 and extends outward from the side wall 116. The maximum protrusion height of the protrusion 111 relative to the side wall 116 is H, satisfying: 2mm ≤ H ≤ 4mm. It is understandable that the distance between the end of the protrusion 111 furthest from the side wall 116 along the circumferential direction C and the side wall 116 is the maximum protrusion height H of the protrusion 111. It is understandable that when H < 2mm, the height of the protrusion 111 is relatively small, and its effect on improving the structural strength of the mounting ear 110 is not significant enough. This would make it difficult for the structural strength of the mounting ear 110 to meet the requirements of drop testing, resulting in a higher risk of breakage of the mounting ear 110 during the test, leading to insufficient installation stability of the motor and affecting the operational stability of the motor. When H > 4mm, the height of the protrusion 111 is relatively large, which can effectively improve the structural strength of the mounting ear 110; however, more material is used, leading to increased costs.

[0042] In summary, when the maximum protrusion height H of the protrusion 111 relative to the sidewall 116 satisfies 2mm≤H≤4mm, it is possible to improve the structural strength of the mounting ear 110 and enhance the installation stability of the motor, while saving material costs.

[0043] Understandably, the protrusion height of the protrusion 111 decreases from the middle of the protrusion 111 along the radial X direction towards both sides. The two sides of the protrusion 111 along the radial X direction are connected to the side wall 116 of the mounting ear 110 through inclined planes or arc-shaped surfaces. Understandably, during the drop test, the outer end face of the mounting ear 110 along the radial X direction is subjected to external impact, and the stress is transmitted from the mounting ear 110 to the annular side plate 102 and the end plate 101. The inclined or arc-shaped surfaces on both sides of the protrusion 111 that connect to the side wall 116 of the mounting ear 110 can effectively reduce stress concentration, thereby reducing the risk of the mounting ear 110 breaking and improving the structural strength of the mounting ear 110.

[0044] It is understood that the protrusion 111 has a first connecting surface 118 and a second connecting surface 119 on both sides along the radial X direction. The first connecting surface 118 is located on the side of the protrusion 111 away from the central axis 104 of the annular side plate 102, and the second connecting surface 119 is located on the other side facing the central axis 104 of the annular side plate 102.

[0045] In some embodiments, the first connecting surface 118 and the second connecting surface 119 are both planes, and the first connecting surface 118 and the second connecting surface 119 have an included angle with the sidewall 116. It is understood that the first connecting surface 118 has a first included angle R1 with the sidewall 116, and the second connecting surface 119 has a second included angle R2 with the sidewall 116.

[0046] In some embodiments, the protrusion 111 is located at the middle position of the mounting ear 110 along the radial X direction. That is, the distance in the radial X direction between the maximum protrusion height of the protrusion 111 and the end face of the mounting ear 110 away from the annular side plate 102 is equal to the distance in the radial X direction between the maximum protrusion height of the protrusion 111 and the outer peripheral wall of the annular side plate 102. At this time, the first included angle R1 and the second included angle R2 are equal. Therefore, the mounting ear 110 can be subjected to uniform force on both sides along the radial X direction, reducing the risk of stress concentration and breakage when subjected to drop impact, and improving the stability of motor installation.

[0047] In some embodiments, along the radial direction X and from the inner side of the annular side plate 102 outwards, the protrusion height of the protrusion 111 first increases and then decreases. Furthermore, the maximum protrusion height of the protrusion 111 is located at the middle of the protrusion 111 along the radial direction X, biased towards one side of the annular side plate 102; that is, the maximum protrusion height of the protrusion 111 is located on the side of the protrusion 111 closest to the annular side plate 102. It is understood that the first included angle R1 is smaller than the second included angle R2, meaning the inclination of the first connecting surface 118 relative to the side wall 116 is smaller than the inclination of the second connecting surface 119 relative to the side wall 116. In practical use, the closer the mounting ear 110 is to the center of the housing body 100, the greater the force it bears. This structure results in a larger average protrusion height for the half of the protrusion 111 closest to the inner side in the radial direction X, enabling the mounting ear 110 to withstand greater stress and improving the stability of motor installation and operation.

[0048] In some embodiments, the first included angle R1 is greater than the second included angle R2, that is, the inclination of the first connecting surface 118 relative to the side wall 116 is greater than the inclination of the second connecting surface 119 relative to the side wall 116. The maximum protrusion height of the protrusion 111 is located at the middle of the protrusion 111 along the radial X direction, away from the annular side plate 102, so that the end of the mounting ear 110 facing away from the central axis 104 of the annular side plate 102 has high strength and can withstand a large impact force when falling, reducing the risk of breakage at the end of the mounting ear 110 away from the central axis 104.

[0049] In some embodiments, the first connecting surface 118 and the second connecting surface 119 are both arc-shaped surfaces, and both the first connecting surface 118 and the second connecting surface 119 protrude in a direction away from the side wall 116 of the mounting ear 110, which can increase the volume of the protrusion 111 and thereby improve the structural strength of the mounting ear 110.

[0050] In some embodiments, the first connecting surface 118 and the second connecting surface 119 are both arc-shaped surfaces, and both the first connecting surface 118 and the second connecting surface 119 are recessed toward the side wall 116 of the mounting ear 110. This structure can reduce the amount of material used while ensuring the preset height of the protrusion 111, which is beneficial to reducing costs.

[0051] In some embodiments, both the first connecting surface 118 and the second connecting surface 119 are arc-shaped surfaces. The first connecting surface 118 protrudes in the direction away from the side wall 116 of the mounting ear 110, and the second connecting surface 119 is recessed in the direction of the side wall 116 of the mounting ear 110.

[0052] In some embodiments, the first connecting surface 118 and the second connecting surface 119 are both arc-shaped surfaces. The first connecting surface 118 is recessed toward the side wall 116 of the mounting ear 110, and the second connecting surface 119 protrudes toward the side wall 116 of the mounting ear 110.

[0053] Reference Figure 2 and Figure 3 It is understood that the housing body 100 also includes a heat dissipation structure 130, which is connected to the outer peripheral wall of the annular side plate 102 and located between two adjacent mounting ears 110. Specifically, in this embodiment, the outer peripheral wall of the annular side plate 102 has multiple heat dissipation structures 130, which are arranged circumferentially along the annular side plate 102, thereby increasing the structural area of ​​the housing body 100 with air and improving the heat dissipation efficiency of the motor.

[0054] It is understood that the heat dissipation structure 130 includes a plurality of heat dissipation ribs 131 arranged at intervals along the circumferential direction C. In some embodiments, the heat dissipation ribs 131 protrude outward from the outer peripheral wall of the annular side plate 102 along the radial direction X, and the length of the heat dissipation ribs 131 extends along the axial direction Y, which can increase the contact area between the housing body 100 and the air, thereby improving the heat dissipation efficiency and ensuring stable operation of the motor.

[0055] It is understandable that there is a gap 132 between the protrusion 111 and the heat dissipation structure 130 along the circumferential direction C. The gap 132 can prevent interference between the protrusion 111 and the heat dissipation structure 130, and can increase the contact area between the annular side plate 102 and the air, thereby improving the heat dissipation effect. At the same time, setting the gap 132 can reduce the amount of material used, which is beneficial to reducing manufacturing costs.

[0056] Reference Figure 3 In some embodiments, along the circumferential direction C, the protrusion 111 is arranged side by side with the heat dissipation fin 131 in the heat dissipation structure 130. Specifically, the distance between the maximum protrusion height of the protrusion 111 and the central axis 104 is less than or equal to the distance between the outer end face of the heat dissipation fin 131 facing away from the annular side plate 102 along the radial direction X and the central axis 104. At the same time, there is a gap 132 along the circumferential direction C between the protrusion 111 and the heat dissipation structure 130, which avoids interference while ensuring the contact between the annular side plate 102 and the air, thereby ensuring a good heat dissipation effect.

[0057] In some embodiments, the protrusion 111 is staggered from the heat dissipation structure 130 along the radial X direction. Specifically, the distance between the maximum protrusion height of the protrusion 111 and the central axis 104 is greater than the distance between the outer end face of the heat dissipation fin 131 facing away from the annular side plate 102 along the radial X direction and the central axis 104. This is beneficial to increasing the size of the gap 132, allowing air to pass through and contact the outer peripheral wall of the heat dissipation fin 131 while avoiding interference, which is beneficial to improving heat dissipation efficiency.

[0058] Reference Figure 6 It is understood that, along the axial direction Y, the mounting ear 110 has a first end wall 112 and a second end wall 113 that are opposite to each other. In this embodiment, the first end wall 112 is located on the side of the mounting ear 110 that is opposite to the end plate 101, and the second end wall 113 is located on the other side of the mounting ear 110.

[0059] In some embodiments, the first end wall 112 is parallel to the second end wall 113, and the first end wall 112 is perpendicular to the central axis 104 of the annular side plate 102.

[0060] In some embodiments, the first end wall 112 is perpendicular to the central axis 104, and the second end wall 113 is inclined and, along the radial direction X, the end of the second end wall 113 away from the annular side plate 102 is closer to the first end wall 112 than the end connected to the annular side plate 102. This makes the thickness of the end of the mounting ear 110 away from the central axis 104 less than the thickness of the end connected to the annular side plate 102. This can improve the connection strength between the mounting ear 110 and the annular side plate 102 while reducing the amount of material used, which is beneficial for reducing costs.

[0061] In some embodiments, the protrusion 111 extends from the first end wall 112 to the second end wall 113, making the thickness of the protrusion 111 along the axial direction Y larger, which can improve the structural strength of the mounting ear 110. At the same time, the protrusion 111 can increase the area of ​​the first end wall 112, thereby increasing the contact area between the housing body 100 and the mounting surface during installation, which is beneficial to improving the stability of motor installation.

[0062] Reference Figure 4 and Figure 6It is understood that the mounting ear 110 is provided with a mounting groove 114, and a fixing plate 115 is provided within the mounting groove 114. The fixing plate 115 is connected to the groove wall at one end of the mounting groove 114 along the axial direction Y. The thickness direction of the fixing plate 115 is parallel to the direction of the central axis 104 and extends upward along the axial direction Y from the first end wall 112 of the mounting ear 110. It is understood that the fixing plate 115 has a connecting hole 117 for passing a bolt, and the maximum inner diameter of the connecting hole 117 is smaller than the minimum inner diameter of the mounting groove 114. The fixing plate 115 has a pressure contact surface 120 on the side near the end plate 101 along the axial direction Y. During installation, the pressure contact surface 120 can support the head of the bolt, so that the bolt can press the mounting ear 110 to achieve the fixed installation of the housing body 100. On the one hand, since there is a gap between the pressure contact surface 120 and the second end wall 113, the gap can accommodate the head of the bolt, which can reduce the space occupied by the bolt and improve the compactness of the structure. On the other hand, the bottom wall of the fixing plate 115 is coplanar with the first end wall 112, which can increase the area of ​​the first end wall 112, thereby increasing the installation area of ​​the housing body 100 and improving the installation stability.

[0063] In some embodiments, the mounting groove 114 has an opening 121 extending radially outward (X), and the inner peripheral wall of the connecting hole 117 is a complete cylindrical wall surface, which can restrict the position of the bolt. This facilitates the positioning of the housing body 100 during installation, thereby improving installation efficiency. Simultaneously, the mounting groove 114 with the opening 121 prevents interference between the bolt head and the inner peripheral wall of the mounting groove 114 during installation, and reduces material usage, thus lowering costs.

[0064] In some embodiments, the mounting groove 114 has an opening 121 extending radially outward along the X direction, and the inner peripheral wall of the connecting hole 117 has an opening 122 on the side facing away from the annular side plate 102. During installation, the opening 122 and the opening 121 allow the bolt to move radially along the X direction, facilitating fine-tuning of the motor's mounting position and improving installation flexibility. Furthermore, this reduces material usage and helps lower manufacturing costs.

[0065] In some embodiments, the mounting groove 114 has a complete annular inner peripheral wall, and the inner peripheral wall of the connecting hole 117 is a complete columnar wall, which helps to ensure that the mounting ear 110 has good structural strength, reduces the risk of breakage after a drop, and improves the installation stability of the motor.

[0066] Reference Figure 4In some embodiments, the mounting groove 114 has an opening 121 facing outward along the radial X direction. The mounting groove 114 has side surfaces 124 located on both sides of the opening 121 along the circumferential C direction and arranged opposite to each other. At the same time, the mounting groove 114 has an arc-shaped circular surface 125. The side surfaces 124 are connected to the two ends of the circular surface 125 and are tangent to the circular surface 125. The opening 121 allows the head of the bolt to move from the outside of the housing body 100 into the mounting groove 114 in the radial X direction, which can improve the ease of installation.

[0067] Reference Figure 5 It is understandable that the opening 122 has a minimum width L1, the connecting hole 117 has a maximum inner diameter D, and the minimum width L1 of the opening 122 is the shortest straight distance between the two side walls 116 of the opening 122 along the circumferential direction C.

[0068] In some embodiments, the minimum width L1 of the opening 122 is less than the maximum inner diameter D of the connecting hole 117. The mounting ear 110 includes a limiting portion 123 located on both sides of the opening 122. The limiting portion 123 protrudes from the inner wall of the connecting hole 117 toward the center of the opening 122, thereby limiting the bolts passing through the connecting hole 117 during installation. This facilitates quick positioning of the motor and improves ease of use. At the same time, the opening 122 can reduce the amount of material used, thus saving costs.

[0069] In some embodiments, the minimum width L1 of the opening 122 is equal to the maximum inner diameter D of the connecting hole 117, and the inner walls of the two sides of the opening 122 along the circumferential direction C are tangent to the inner circumferential wall of the connecting hole 117, which can simplify the structure, thereby simplifying the mold structure of the housing body 100 and reducing the processing difficulty, thereby reducing manufacturing costs and improving the processing efficiency of the mold.

[0070] Reference Figure 6 It is understood that the protrusion 111 extends along the axial direction Y from the end of the fixing plate 115 where the first end wall 112 is located to the second end wall 113. It is also understood that the maximum thickness of the protrusion 111 along the axial direction Y is S1, and the maximum thickness of the fixing plate 115 along the axial direction Y is S2. The maximum thickness S2 of the fixing plate 115 along the axial direction Y is the maximum distance between the first end wall 112 and the pressure contact surface 120. Specifically, the maximum thickness S1 of the protrusion 111 along the axial direction Y is greater than or equal to the maximum thickness S2 of the fixing plate 115 along the axial direction Y. Since the pressure of the bolts mainly acts on the fixing plate 115 during installation, making the maximum thickness of the protrusion 111 greater than or equal to the maximum thickness of the fixing plate 115 helps improve the structural strength of the mounting ear 110 near the fixing plate 115 along the axial direction Y, thereby improving the stability of the motor installation.

[0071] In some embodiments, the maximum thickness S1 of the protrusion 111 along the axial direction Y is greater than or equal to the maximum thickness S2 of the fixing plate 115 along the axial direction Y, and the protrusion 111 extends along the axial direction Y from the end of the fixing plate 115 where the first end wall 112 is provided in the direction close to the end plate 101 without contacting the second end wall 113. Thus, while improving the structural strength of the portion of the mounting ear 110 close to the fixing plate 115 along the axial direction Y, the amount of material used is reduced, which is beneficial to reducing manufacturing costs.

[0072] The motor according to a second aspect embodiment of the present invention includes a stator assembly, a rotor assembly, and a motor housing according to a first aspect embodiment of the present invention. (See also...) Figure 1 It is understood that the motor housing has a mounting cavity 103, the stator assembly is fixedly mounted on the inner wall of the mounting cavity 103, and the rotor assembly is rotatably disposed in the inner hole of the stator assembly. Because the motor housing has protrusions 111 on the mounting ears 110, the motor housing has good drop resistance, and the mounting ears 110 have good structural strength, which helps to improve the installation stability of the motor.

[0073] The third aspect of this utility model relates to an electrical device, and the second aspect of this utility model relates to a motor. It is understood that the electrical device includes devices that use motors, such as air conditioners, washing machines, and dishwashers. It is understood that the motor used in the electrical device includes all the technical solutions related to the motor housing, and therefore possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0074] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A motor housing, characterized in that, include: The housing body includes an end plate and an annular side plate. The annular side plate is connected to the periphery of the end plate. The housing body also includes a plurality of mounting ears. The plurality of mounting ears are connected to the outer peripheral wall of the annular side plate and are arranged at intervals along the circumference of the annular side plate. The mounting ears have a protrusion on at least one side along the circumference.

2. The motor housing according to claim 1, characterized in that: Along the axial direction of the motor housing, the mounting lug has a first end wall and a second end wall facing away from each other, and the protrusion extends from the first end wall to the second end wall.

3. The motor housing according to claim 1, characterized in that: The mounting ear is provided with a mounting groove, and a fixing plate is provided in the mounting groove. The fixing plate is connected to the groove wall at one end of the mounting groove along the axial direction of the motor housing. The protrusion extends from the wall at one end of the fixing plate along the axial direction to the wall at the other end, and the maximum thickness of the protrusion along the axial direction is greater than or equal to the maximum thickness of the fixing plate along the axial direction.

4. The motor housing according to claim 1, characterized in that: Along the circumferential direction, the mounting ear has two opposite sidewalls, the protrusion is provided on the sidewall, and the maximum protrusion height of the protrusion relative to the sidewall is H, which satisfies: 2mm≤H≤4mm.

5. The motor housing according to claim 4, characterized in that: Along the radial direction of the annular side plate and from the inside out, the protrusion height of the protrusion first increases and then decreases, and the maximum protrusion height of the protrusion is located on the side of the protrusion closest to the annular side plate.

6. The motor housing according to claim 4, characterized in that: The protrusion height of the protrusion decreases from the center of the protrusion along the radial direction of the annular side plate towards both sides.

7. The motor housing according to claim 1, characterized in that: The housing body also includes a heat dissipation structure, which is connected to the outer peripheral wall of the annular side plate and located between two adjacent mounting ears; Along the circumferential direction, there is a gap between the protrusion and the heat dissipation structure; And / or, along the radial direction of the annular side plate, the protrusion is arranged offset from the heat dissipation structure.

8. The motor housing according to claim 7, characterized in that: The protrusion is located at the midpoint of the mounting lug along the radial direction of the annular side plate.

9. An electric motor, characterized in that, The motor housing includes a stator assembly, a rotor assembly, and a motor housing as described in any one of claims 1 to 8, wherein the motor housing has a mounting cavity, the stator assembly is fixedly mounted on the inner wall of the mounting cavity, and the rotor assembly is rotatably disposed in the inner hole of the stator assembly.

10. Electrical equipment, characterized in that, Includes the motor as described in claim 9.

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