Motor assembly, outdoor unit and air conditioner

Abstract

The utility model discloses a motor assembly, an outdoor unit and an air conditioner, and belongs to the technical field of electrical equipment. The motor assembly comprises a support and a motor, the support comprises a mounting part and a shielding part, the mounting part is provided with a mounting cavity, and the shielding part is connected to the mounting part; the motor is fixed to the mounting part and comprises a shell, an end cover and a water retaining part, the end cover is mounted at one end of the shell, the joint of the end cover and the shell is located in the mounting cavity, and the water retaining part is arranged on the peripheral wall of the shell and protrudes out of the peripheral wall; wherein the shielding part extends towards one side, in the axial direction of the motor, of the mounting part, and the water retaining part is located between the mounting part and the end, away from the mounting part, of the shielding part in the axial direction. The motor assembly provided by the utility model can reduce the risk that rainwater enters the motor, and is good in waterproof performance.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a motor component, an outdoor unit and an air conditioner. Background Art

[0002] An air conditioner is a device used to adjust indoor temperature and humidity. The outdoor unit of the air conditioner is exposed to the outside for a long time, so the waterproof performance of the motor of the outdoor unit is required to be high. In the related art, the motor is installed on the bracket of the outdoor unit, and water will enter the inside of the motor through the gap between the motor housing and the end cover, causing a short circuit, resulting in motor damage, and seriously affecting the reliability of the motor. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a motor assembly, which can reduce the risk of rainwater entering the interior of the motor and has good waterproof performance.

[0004] The utility model also provides an outdoor unit and an air conditioner having the motor assembly.

[0005] According to the first aspect of the present invention, the motor assembly comprises a bracket, comprising a mounting portion and a shielding portion, the mounting portion being provided with a mounting cavity, the shielding portion being connected to the mounting portion; a motor being fixed to the mounting portion, the motor comprising a shell, an end cover and a water retaining portion, the end cover being mounted at one end of the shell, the connection between the end cover and the shell being located in the mounting cavity, the water retaining portion being arranged on the outer peripheral wall of the shell and protruding from the outer peripheral wall; wherein the shielding portion is extended toward one side of the mounting portion along the axial direction of the motor, and along the axial direction, the water retaining portion is located between the mounting portion and one end of the shielding portion away from the mounting portion.

[0006] The motor assembly according to the embodiment of the first aspect of the utility model has at least the following beneficial effects: by providing a shielding portion connected to the mounting portion, the shielding portion extends toward one side of the mounting portion along the axial direction of the motor, so that the shielding portion can shield a portion of the motor housing, and at the same time a water retaining portion is provided on the outer peripheral wall of the housing, and along the axial direction of the motor, the water retaining portion is located between the mounting portion and an end of the shielding portion away from the mounting portion, so that the shielding portion can also shield the water retaining portion, thereby reducing the probability of rainwater drifting into the space between the mounting portion and the water retaining portion, and at the same time, the water retaining portion can block rainwater from flowing along the outer peripheral wall of the housing to the space between the mounting portion and the water retaining portion, thereby reducing the probability of rainwater flowing to the connection between the housing and the end cover, thereby reducing the risk of rainwater entering the interior of the motor through the connection between the housing and the end cover, effectively improving the waterproof performance, and thus ensuring the reliability of the motor.

[0007] According to some embodiments of the present invention, the shell further includes a plurality of fixing parts, the plurality of fixing parts are arranged at intervals along the circumference of the shell and installed on the installation part, and the water retaining part is connected between two adjacent fixing parts.

[0008] According to some embodiments of the present invention, the water retaining portion has a first wall surface on a side facing the mounting portion, the fixing portion has a second wall surface on a side facing the mounting portion, and the first wall surface is coplanar with the second wall surface.

[0009] According to some embodiments of the present invention, the water retaining portion is annular and arranged along the circumference of the shell.

[0010] According to some embodiments of the present invention, along the axial direction of the motor, the minimum distance between the water retaining portion and the end surface of the shielding portion away from the mounting portion is L 1 , the maximum width of the shielding portion is L 2 , satisfying: 0.25≤L 1 / L 2 ≤0.5.

[0011] According to some embodiments of the present invention, the maximum outer diameter of the housing is D, and along the radial direction of the motor, the maximum protruding height of the water retaining portion relative to the outer peripheral wall of the housing is L. 3 , satisfying: 0.05≤L 3 / D≤0.1.

[0012] According to some embodiments of the utility model, the mounting portion includes a main body portion and a first flange portion, the first flange portion is connected to one end of the main body portion close to the central axis of the motor and is arranged around the motor, the first flange portion extends in a direction away from the water retaining portion, and the first flange portion protrudes from the wall surface of the end cover on a side away from the shell.

[0013] According to some embodiments of the present invention, the bracket further includes a second flange portion, which is connected to an end of the first flange portion away from the water retaining portion and is bent toward a central axis of the motor.

[0014] According to some embodiments of the present invention, the maximum outer diameter of the housing is D, and along the radial direction of the motor, the width of the second flange portion is L. 4 , satisfying: 0.05≤L 4 / D≤0.1.

[0015] The outdoor unit according to the second embodiment of the utility model comprises a housing, a wind wheel and a motor assembly of the first embodiment of the utility model, wherein the motor assembly is arranged in the housing, and the bracket is fixedly connected to the housing, and the wind wheel is installed on the output shaft of the motor.

[0016] The outdoor unit according to the embodiment of the second aspect of the utility model has at least the following beneficial effects: the outdoor unit adopts the motor assembly of the embodiment of the first aspect of the utility model, and a shielding portion connected to the mounting portion is provided, and the shielding portion extends toward one side of the mounting portion along the axial direction of the motor, so that the shielding portion can shield a portion of the motor shell, and at the same time a water retaining portion is provided on the outer peripheral wall of the shell, and along the axial direction of the motor, the water retaining portion is located between the mounting portion and an end of the shielding portion away from the mounting portion, so that the shielding portion can also shield the water retaining portion, thereby reducing the probability of rainwater drifting into the space between the mounting portion and the water retaining portion, and at the same time, the water retaining portion can block rainwater from flowing along the outer peripheral wall of the shell to the space between the mounting portion and the water retaining portion, thereby reducing the probability of rainwater flowing to the connection between the shell and the end cover, thereby reducing the risk of rainwater entering the interior of the motor through the connection between the shell and the end cover, effectively improving the waterproof performance, and then ensuring the reliability of the motor.

[0017] An air conditioner according to an embodiment of the third aspect of the utility model includes an outdoor unit according to an embodiment of the second aspect of the utility model.

[0018] The air conditioner according to the embodiment of the third aspect of the utility model has at least the following beneficial effects: the air conditioner adopts the outdoor unit of the embodiment of the second aspect of the utility model, and a shielding portion connected to the mounting portion is provided, and the shielding portion extends toward one side of the mounting portion along the axial direction of the motor, so that the shielding portion can shield a part of the shell of the motor, and at the same time a water retaining portion is provided on the outer peripheral wall of the shell, and along the axial direction of the motor, the water retaining portion is located between the mounting portion and an end of the shielding portion away from the mounting portion, so that the shielding portion can also shield the water retaining portion, thereby reducing the probability of rainwater drifting into the space between the mounting portion and the water retaining portion, and at the same time, the water retaining portion can block rainwater from flowing along the outer peripheral wall of the shell to the space between the mounting portion and the water retaining portion, thereby reducing the probability of rainwater flowing to the connection between the shell and the end cover, thereby reducing the risk of rainwater entering the interior of the motor through the connection between the shell and the end cover, effectively improving the waterproof performance, and then ensuring the reliability of the motor.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1is an exploded schematic diagram of a motor assembly in an embodiment of the utility model;

[0022] Figure 2 is a cross-sectional view of a motor assembly in an embodiment of the utility model;

[0023] Figure 3 yes Figure 2 A in the enlarged view;

[0024] Figure 4 It is a schematic diagram of the structure of the bracket of the embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a motor according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] Bracket 100; mounting portion 110; first plate 111; second plate 112; third plate 113; first flange portion 114; second flange portion 115; mounting cavity 120; shielding portion 130;

[0028] Motor 200 ; housing 210 ; fixing portion 211 ; second wall 212 ; water retaining portion 220 ; first wall 221 ; end cover 230 ; rubber member 240 . DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installing, connecting, assembling, and matching should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model based on the specific content of the technical solution.

[0033] An air conditioner is a device used to adjust indoor temperature and humidity. The outdoor unit of the air conditioner is exposed to the outside for a long time, so the waterproof performance of the motor of the outdoor unit is required to be high. In the related art, the motor is installed on the bracket of the outdoor unit, and water will enter the inside of the motor through the gap between the motor housing and the end cover, causing a short circuit, resulting in motor damage, and seriously affecting the reliability of the motor.

[0034] To this end, the present utility model embodiment provides a motor assembly, which can reduce the risk of rainwater entering the interior of the motor 200 and improve the waterproof performance of the motor 200. Figures 1 to 5 The motor assembly is described.

[0035] Reference Figure 1 and Figure 3 The embodiment of the first aspect of the utility model provides a motor assembly, including a bracket 100 and a motor 200, the bracket 100 includes a mounting portion 110 and a shielding portion 130, the mounting portion 110 is provided with a mounting cavity 120, the mounting portion 110 is arranged along the circumferential direction and is annular, and the space surrounded by the mounting portion 110 is the mounting cavity 120. The mounting portion 110 includes a body portion, the body portion includes a first plate 111, a second plate 112 and a third plate 113 connected in sequence, the first plate 111 and the third plate 113 extend along the radial direction of the motor 200 respectively, the first plate 111 and the third plate 113 are arranged at intervals along the axial direction of the motor 200, and the two ends of the second plate 112 are respectively connected to the first plate 111 and the second plate 112. The shielding portion 130 is connected to the mounting portion 110, and the shielding portion 130 is connected to one end of the first plate 111 away from the second plate 112. Along the axial direction of the motor 200, the shielding portion 130 extends toward the side of the mounting portion 110 close to the housing 210, so that the shielding portion 130 can cover a portion of the housing 210. Since the first plate 111 and the third plate 113 are arranged at intervals along the axial direction of the motor 200, and the two ends of the second plate 112 are respectively connected to the first plate 111 and the third plate 113, the first plate 111, the second plate 112 and the third plate 113 form a bent structure. The first plate 111, the second plate 112 and the third plate 113 form a bent structure, which enhances the structural strength of the mounting portion 110, improves the stress distribution of the mounting portion 110, and further enhances the structural strength and stability of the bracket 100.

[0036] It can be understood that the motor 200 is provided with a central axis, the direction around the central axis is the circumferential direction, the direction along the central axis is the axial direction, and the radial direction is perpendicular to the axial direction.

[0037] Reference Figure 2 , Figure 3 and Figure 5 In some embodiments of the present invention, a portion of the motor 200 is accommodated in the installation cavity 120 and fixedly installed on the installation portion 110, and the motor 200 includes a housing 210, an end cover 230, and a water retaining portion 220. The end cover 230 is installed at one end of the housing 210, and the connection between the end cover 230 and the housing 210 is located in the installation cavity 120, so that the installation portion 110 covers the outer periphery of the connection between the end cover 230 and the housing 210. By covering the outer periphery of the connection between the end cover 230 and the housing 210 with the installation portion 110, rainwater can be prevented from entering the interior of the motor 200 from the connection between the end cover 230 and the housing 210 to a certain extent.

[0038] Reference Figure 3 and Figure 5 In some embodiments of the utility model, the water retaining portion 220 is provided on the outer peripheral wall of the housing 210, and along the radial direction of the motor 200, the water retaining portion 220 extends in a direction away from the central axis of the motor 200. Along the axial direction of the motor 200, the water retaining portion 220 is located between the mounting portion 110 and the end of the shielding portion 130 away from the mounting portion 110, so that the shielding portion 130 can cover the outer periphery of the water retaining portion 220, that is, the shielding portion 130 shields the water retaining portion 220. The water retaining portion 220 is provided on the outer peripheral wall of the housing 210 to prevent rainwater from flowing along the outer peripheral wall of the housing 210 to the connection between the housing 210 and the end cover 230, thereby preventing rainwater from entering the interior of the motor 200, thereby improving the waterproof performance of the motor 200. Since the shielding portion 130 can shield the water retaining portion 220, when rainwater falls from the end of the shielding portion 130 away from the mounting portion 110 to the outer peripheral wall of the shell 210, the rainwater falls on the side of the water retaining portion 220 away from the mounting portion 110, thereby reducing the probability of rainwater drifting into the space between the mounting portion 110 and the water retaining portion 220. At the same time, the water retaining portion 220 can block rainwater from flowing along the outer peripheral wall of the shell 210 to the space between the mounting portion 110 and the water retaining portion 220, thereby reducing the probability of rainwater flowing to the connection between the shell 210 and the end cover 230, reducing the risk of rainwater entering the interior of the motor 200, improving the waterproof performance of the motor 200, and ensuring the reliability of the motor 200.

[0039] In some embodiments of the utility model, the water retaining portion 220 is annular and arranged along the circumference of the shell 210. In this way, the water retaining portion 220 at any circumferential position of the shell 210 can block rainwater from flowing along the outer wall of the shell 210 to the space between the mounting portion 110 and the water retaining portion 220, thereby achieving good waterproof performance.

[0040] Reference Figure 3 and Figure 4In some embodiments of the present invention, the mounting portion 110 further includes a first flange portion 114, the first flange portion 114 is connected to an end of the main body portion close to the central axis of the motor 200, that is, the first flange portion 114 is connected to an end of the third plate 113 away from the second plate 112, and the first flange portion 114 is arranged circumferentially around the motor 200, that is, the first flange portion 114 encloses and defines the mounting cavity 120. Along the axial direction of the motor 200, the first flange portion 114 extends in a direction away from the water retaining portion 220, and the first flange portion 114 protrudes from the end surface of the end cover 230 away from the housing 210, that is, the first flange portion 114 protrudes from the wall surface of the end cover 230 on the side away from the housing 210. Since the first flange portion 114 protrudes from the end surface of the end cover 230 away from the shell 210, when rainwater falls on the mounting portion 110, the first flange portion 114 prevents rainwater from falling on the outer wall of the end cover 230, and prevents rainwater from flowing from the outer wall of the end cover 230 to the connection between the end cover 230 and the shell 210, thereby reducing the risk of rainwater entering the interior of the motor 200 and improving the waterproof performance of the motor 200.

[0041] Reference Figure 3 and Figure 4 In some embodiments of the present invention, the mounting portion 110 is further provided with a second flange portion 115, and the second flange portion 115 is arranged along the circumference of the motor 200. The second flange portion 115 is connected to one end of the first flange portion 114 away from the water retaining portion 220, and along the radial direction of the motor 200, the second flange portion 115 extends in a direction close to the central axis of the motor 200, that is, the second flange portion 115 is bent toward the central axis of the motor 200. The second flange portion 115 is connected to the first flange portion 114, and the second flange portion 115 is bent toward the central axis of the motor 200, so that the second flange portion 115 covers a part of the end surface of the end cover 230 away from the housing 210, so as to prevent rainwater from flowing into the outer peripheral wall of the motor 200 from the gap between the first flange portion 114 and the end cover 230, further prevent rainwater from flowing into the connection between the end cover 230 and the housing 210, thereby reducing the risk of rainwater intruding into the interior of the motor 200, and further improving the waterproof performance of the motor 200.

[0042] It is understandable that the water retaining portion 220 and the housing 210 are an integrated structure, that is, there is no gap or seam between the water retaining portion 220 and the housing 210, which prevents rainwater from entering the interior of the motor 200 through the gap between the water retaining portion 220 and the housing 210, thereby ensuring the waterproof performance of the water retaining portion 220. Since the water retaining portion 220 and the housing 210 are an integrated structure, the overall structural strength of the housing 210 and the water retaining portion 220 is enhanced. At the same time, there is no need to additionally install the water retaining portion 220 and the housing 210, which simplifies the production and installation process and facilitates production and processing.

[0043] It is understandable that the water retaining portion 220 and the housing 210 are an integrated structure, and the water retaining portion 220 and the housing 210 can be produced by injection molding, which has high production efficiency and can be customized and adjusted according to the specific sizes of the water retaining portion 220 and the housing 210. The integrated structure of the water retaining portion 220 and the housing 210 can also be produced by other processes such as 3D printing, which can be selected according to actual production applications, and this application is not limited here.

[0044] Reference Figure 1 and Figure 5 In some embodiments of the utility model, the housing 210 is further provided with a plurality of fixing portions 211, which are arranged at intervals along the circumference of the housing 210, and the fixing portions 211 are mounted on the second plate 112 of the mounting portion 110. A plurality of water retaining portions 220 are provided, and the number of the water retaining portions 220 is equal to the number of the fixing portions 211. A water retaining portion 220 is arranged between each two adjacent fixing portions 211, and the two ends of each water retaining portion 220 are respectively connected between two adjacent fixing portions 211. The water retaining portion 220 is connected between two adjacent fixing portions 211 so that the water retaining portion 220 does not affect the connection between the fixing portion 211 and the mounting portion 110, thereby preventing the water retaining portion 220 from affecting the installation of the motor 200 on the bracket 100. Since the water retaining part 220 is connected between two adjacent fixing parts 211, that is, the water retaining part 220 and the plurality of fixing parts 211 are connected as one, the fixing parts 211 and the water retaining part 220 can jointly block rainwater from entering the interior of the motor 200, thereby saving the material usage of the water retaining part 220 and reducing the production cost.

[0045] Reference Figure 5 In some embodiments of the utility model, the side of the water retaining portion 220 facing the mounting portion 110 has a first wall 221, and the side of the fixing portion 211 facing the mounting portion 110 has a second wall 212. The first wall 221 and the second wall 212 are coplanar, which facilitates the processing and forming of the water retaining portion 220 and the fixing portion 211, reduces the difficulty of the processing technology, simplifies the production process, and thus improves production efficiency.

[0046] Reference Figure 5 In some embodiments of the utility model, a rubber member 240 is provided between the fixing portion 211 and the mounting portion 110, and two ends of the rubber member 240 are respectively abutted against the fixing portion 211 and the second plate 112 of the mounting portion 110, and the rubber member 240 has good cushioning properties. The rubber member 240 puts the fixing portion 211 and the mounting portion 110 in a soft contact state. The rubber member 240 can reduce the vibration of the motor 200 during use, reduce the damage to the motor 200 and the bracket 100 caused by vibration and impact, and reduce noise.

[0047] Reference Figure 3In some embodiments of the present invention, along the axial direction of the motor 200, the minimum distance between the end surface of the water retaining portion 220 and the end surface of the shielding portion 130 away from the mounting portion 110 is L 1 , that is, L 1 The minimum distance between the side of the water retaining portion 220 away from the mounting portion 110 and the end surface of the shielding portion 130 away from the mounting portion 110. The maximum width of the shielding portion 130 is L 2 , that is, the maximum distance between the two ends of the shielding portion 130 along the axial direction of the motor 200 is L 2 , the design meets: 0.25≤L 1 / L 2 ≤0.5. Generally speaking, the maximum width L of the shielding portion 130 2 To determine the value, if L 1 / L 2 <0.25, then along the axial direction of the motor 200, the minimum distance between the water retaining portion 220 and the end face of the shielding portion 130 away from the mounting portion 110 is too small, making it difficult for the water retaining portion 220 to block rainwater, and rainwater can easily pass over the water retaining portion 220 and enter the space between the mounting portion 110 and the water retaining portion 220, thereby causing rainwater to enter the interior of the motor 200 from the connection between the end cover 230 and the housing 210, resulting in poor waterproofing of the motor 200, which reduces the safety performance of the motor 200. Similarly, if L 1 / L 2 >0.5, then along the axial direction of the motor 200, the minimum distance between the end faces of the water retaining portion 220 and the shielding portion 130 away from the mounting portion 110 is too large, resulting in the distance between the mounting portion 110 and the water retaining portion 220 being too small, which in turn results in the installation space of the rubber component 240 being too small, resulting in the thickness of the rubber component 240 being too small, and the structural strength of the rubber component 240 being small, which in turn affects the vibration reduction and buffering effect of the rubber component 240, causing the motor 200 to generate vibration and noise during operation, which is not conducive to the stability of the motor 200 during use.

[0048] Therefore, the minimum distance L between the water retaining portion 220 and the end surface of the shielding portion 130 away from the mounting portion 110 is 1 and the maximum width L of the shielding portion 130 2 , the design meets: 0.25≤L 1 / L 2 ≤0.5. For example, L 1 / L 2 The value of is 0.25, 0.35, 0.45 or 0.5, etc., to ensure the waterproof effect of the shielding part 130 and the water retaining part 220, ensure the waterproof performance of the motor 200, ensure the installation space of the rubber part 240 and the thickness of the rubber part 240, and then improve the shock absorbing and buffering effect of the rubber part 240.

[0049] It can be understood that, in some embodiments of the present invention, the minimum distance L between the end surface of the water retaining portion 220 and the end surface of the shielding portion 130 facing away from the mounting portion 110 is 1 Also need to meet: L 1 ≥2mm, so as to improve the waterproof effect of the shielding portion 130 and the water retaining portion 220, ensure the waterproof performance of the motor 200, and reduce the risk of rainwater entering the motor 200.

[0050] Reference Figure 2 and Figure 3 In some embodiments of the present invention, the maximum outer diameter of the housing 210 is D, D is the maximum outer diameter of the housing 210 when the fixing portion 211 and the water retaining portion 220 are not included, and along the radial direction of the motor 200, the maximum protruding height of the water retaining portion 220 relative to the outer peripheral wall of the housing 210 is L 3 , i.e. along the radial direction of the motor 200, L 3 The maximum distance between the wall surface of the end of the water retaining portion 220 away from the central axis of the motor 200 and the outer peripheral wall of the housing 210 is designed to meet the following conditions: 0.05≤L 3 / D≤0.1. When the maximum outer diameter D of the housing 210 is basically determined, if L 3 / D<0.05, then along the radial direction of the motor 200, the maximum protrusion height of the water retaining portion 220 relative to the outer peripheral wall of the housing 210 is too small, causing rainwater to easily pass over the water retaining portion 220 and enter the space between the mounting portion 110 and the water retaining portion 220, making it difficult for the water retaining portion 220 to prevent rainwater from entering the connection between the end cover 230 and the housing 210, thereby increasing the probability of rainwater entering the motor 200 and affecting the waterproof effect. Similarly, when the maximum outer diameter D of the housing 210 is basically determined, if L 3 / D>0.1, then along the radial direction of the motor 200, the maximum protrusion height of the water retaining portion 220 relative to the outer peripheral wall of the housing 210 is too large, resulting in excessive weight and volume of the water retaining portion 220, which is not conducive to the lightweight of the motor 200 and affects the overall performance of the motor 200. At the same time, the material usage of the water retaining portion 220 is too large, increasing the production cost.

[0051] Therefore, the maximum outer diameter D of the housing 210 and the maximum protruding height L of the water retaining portion 220 relative to the outer peripheral wall of the housing 210 are 3 The design meets the following requirements: 0.05≤L 3 / D≤0.1. For example, L 3 The value of / D is 0.05, 0.07, 0.09 or 0.1, etc. The waterproof effect of the water retaining part 220 is ensured, thereby ensuring the waterproof performance of the motor 200, while avoiding excessive volume and weight of the water retaining part 220, which is beneficial to the lightweight design of the motor 200 and saves production costs.

[0052] It can be understood that in some embodiments of the present invention, along the radial direction of the motor 200, the maximum protrusion height L of the water retaining portion 220 relative to the outer peripheral wall of the housing 210 is 3 Also need to meet: L 3 ≥5mm, so as to ensure the waterproof effect of the water retaining part 220, and then ensure the waterproof performance of the motor 200, and ensure the safety performance of the motor 200.

[0053] Reference Figure 2 and Figure 3 In some embodiments of the present invention, the maximum outer diameter of the housing 210 is D, and the width of the second flange portion 115 along the radial direction of the motor 200 is L. 4 Since the second flange portion 115 is arranged around the circumference of the motor 200 and the second flange portion 115 is bent toward the central axis of the motor 200, that is, along the radial direction of the motor 200, L 4 L is the distance between the wall surface of the second flange portion 115 at one end close to the central axis of the motor 200 and the outer peripheral wall of the first flange portion 114. The design satisfies: 0.05≤L 4 / D≤0.1. When the maximum outer diameter D of the housing 210 is basically determined, if L 4 / D<0.05, the width of the second flange portion 115 is too small, and rainwater can easily pass over the second flange portion 115 and enter between the first flange portion 114 and the motor 200, thereby causing rainwater to enter the interior of the motor 200 from the connection between the end cover 230 and the housing 210, resulting in insufficient waterproof effect of the motor 200 and reducing the safety performance of the motor 200. Similarly, when the maximum outer diameter D of the housing 210 is basically determined, if L 4 / D>0.1, the width of the second flange portion 115 is too large, resulting in an increase in the volume and weight of the second flange portion 115 , reducing the structural stability of the bracket 100 , and increasing the processing difficulty and production cost of the bracket 100 .

[0054] Therefore, the maximum outer diameter D of the housing 210 and the width L of the second flange portion 115 are 4 The design meets the following requirements: 0.05≤L 4 / D≤0.1. For example, L 4 The value of / D is 0.05, 0.07, 0.09 or 0.1, etc., so as to ensure the waterproof effect of the second flange portion 115, reduce the probability of rainwater entering the motor 200, and thus ensure the reliability of the motor 200. At the same time, the volume and weight of the second flange portion 115 are prevented from being too large, the structural stability of the bracket 100 is improved, and the production cost of the bracket 100 is reduced.

[0055] It can be understood that in some embodiments of the present invention, the width L of the second flange portion 115 is 4 Also need to meet: L4 ≥3mm. If L 4 <3mm, so as to ensure the waterproof effect of the second flange portion 115, reduce the probability of rainwater entering the interior of the motor 200, and improve the safety and reliability of the motor 200.

[0056] The second aspect of the utility model provides an outdoor unit, comprising a housing, a wind wheel and a motor assembly of the first aspect of the utility model. The motor assembly is arranged in the housing. Generally speaking, the housing includes a chassis, and the bracket 100 is fixedly connected to the chassis of the housing, and the wind wheel is installed on the output shaft of the motor 200.

[0057] It is understandable that the outdoor unit may be an outdoor unit of a central air conditioner, a cabinet air conditioner or a wall-mounted air conditioner, and this application does not limit this.

[0058] Since the outdoor unit adopts all the technical solutions of the motor assembly of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0059] The third embodiment of the utility model provides an air conditioner, including the outdoor unit of the second embodiment of the utility model.

[0060] It is understandable that the air conditioner can be a central air conditioner, a cabinet air conditioner or a wall-mounted air conditioner, and this application does not limit this.

[0061] Since the air conditioner adopts all the technical solutions of the outdoor unit of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0062] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A motor assembly, characterized in that include: The bracket comprises a mounting portion and a shielding portion, wherein the mounting portion is provided with a mounting cavity, and the shielding portion is connected to the mounting portion; A motor is fixed to the mounting portion, the motor comprising a housing, an end cover and a water retaining portion, the end cover is mounted on one end of the housing, a connection between the end cover and the housing is located in the mounting cavity, and the water retaining portion is disposed on an outer peripheral wall of the housing and protrudes from the outer peripheral wall; The shielding portion is extended toward one side of the mounting portion along the axial direction of the motor, and along the axial direction, the water retaining portion is located between the mounting portion and one end of the shielding portion away from the mounting portion.

2. The motor assembly according to claim 1, characterized in that: The shell further includes a plurality of fixing parts, which are arranged at intervals along the circumference of the shell and mounted on the mounting part, and the water retaining part is connected between two adjacent fixing parts.

3. The motor assembly according to claim 2, characterized in that: The water retaining portion has a first wall surface on a side facing the mounting portion, and the fixing portion has a second wall surface on a side facing the mounting portion, and the first wall surface is coplanar with the second wall surface.

4. The motor assembly according to claim 1, characterized in that: The water retaining portion is annular and arranged along the circumference of the shell.

5. The motor assembly according to claim 1, characterized in that: Along the axial direction of the motor, the minimum distance between the water retaining portion and the end surface of the shielding portion away from the mounting portion is L1, and the maximum width of the shielding portion is L2, satisfying: 0.25≤L1 / L2≤0.

5.

6. The motor assembly according to claim 1 or 5, characterized in that: The maximum outer diameter of the housing is D. Along the radial direction of the motor, the maximum protruding height of the water retaining portion relative to the outer peripheral wall of the housing is L3, satisfying: 0.05≤L3 / D≤0.

1.

7. The motor assembly according to claim 1, characterized in that: The mounting portion includes a main body portion and a first flange portion, wherein the first flange portion is connected to one end of the main body portion close to the central axis of the motor and is arranged around the motor, the first flange portion extends in a direction away from the water retaining portion, and the first flange portion protrudes from the wall surface of the end cover on a side away from the shell.

8. The motor assembly according to claim 7, characterized in that: The bracket further includes a second flange portion, which is connected to an end of the first flange portion away from the water retaining portion and is bent toward the central axis of the motor.

9. The motor assembly according to claim 8, characterized in that: The maximum outer diameter of the housing is D, and along the radial direction of the motor, the width of the second flange portion is L4, satisfying: 0.05≤L4 / D≤0.

1.

10. An outdoor unit, characterized in that: It comprises a housing, a wind wheel and a motor assembly according to any one of claims 1 to 9, wherein the motor assembly is arranged in the housing, the bracket is fixedly connected to the housing, and the wind wheel is installed on the output shaft of the motor.

11. An air conditioner, characterized in that It includes the outdoor unit as claimed in claim 10.

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