Waterproof motor

The combined structure of the mesh cover and bracket is formed, and the sealing ribs and integrated motor installation parts are combined to solve the shortcomings of the existing motor waterproof design in process stability, achieving a more efficient water sealing effect, and improving the motor Reliability and service life.

CN222301537UActive Publication Date: 2025-01-03FOSHAN SHUNDE MIDEA ELECTRONICS TECH CO LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421093352.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-17
Publication Date
2025-01-03
Estimated Expiration
2034-05-17

AI Technical Summary

Technical Problem

The existing motor waterproof design has high requirements for process stability. When the component accuracy is poor, water cannot be effectively prevented from entering, resulting in internal corrosion and short circuit problems of the motor.

Method used

A combined structure of a mesh cover and a bracket is adopted to form a maze structure through flange and annular inner arc surface to prevent direct invasion of water flow, and enhance sealing through sealing ribs and integrated motor mounting parts.

Benefits of technology

It effectively improves the waterproof performance of the motor, avoids corrosion and short circuit problems caused by water entry, and improves the reliability and service life of the motor.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222301537U_ABST
    Figure CN222301537U_ABST
Patent Text Reader

Abstract

The utility model discloses a waterproof motor, which comprises a mesh enclosure, a support and a motor, and is characterized in that the mesh enclosure is provided with a first through hole, and an annular inner arc surface is formed at the inner wall of the first through hole; the support comprises a support body, a second through hole right opposite to the first through hole is formed in the support body, a bent turnup edge is arranged on the support body corresponding to the first end face of the second through hole, and the turnup edge extends into the first through hole in the axial direction of the second through hole. The outer wall surface of the tail end of the turned-over edge is connected with the annular inner arc surface in a matched manner, and a bearing part is formed on a second end surface, corresponding to the second through hole, of the bracket body; the motor comprises a motor body and a motor installation part connected with the motor body, and the motor body is fixedly connected to the bearing part through the motor installation part. Therefore, water is prevented from directly entering the motor, and the waterproof performance of the motor is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present application relates to the technical field of motors, and in particular to a waterproof motor. Background Art

[0002] With the development of the air-conditioning industry, people have higher requirements for the reliability of air conditioners. However, since outdoor air conditioners are exposed to the outside for a long time, high requirements are placed on the waterproofness of the motor. Once water enters the motor, it will cause the surface of the stator and rotor core to rust and get stuck, and even corrode the internal windings of the motor, causing problems such as short circuit between turns and burning.

[0003] In the related art, the motor can be waterproofed by using a motor end cover waterproofing and interference fit connection solution. However, this solution has high requirements on process stability. If the component precision is not well controlled, the expected interference fit effect cannot be achieved. Utility Model Content

[0004] In view of this, an embodiment of the present application provides a waterproof motor, which can improve the waterproof performance of the motor.

[0005] The technical solution of the embodiment of the present application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a waterproof motor, the waterproof motor comprising:

[0007] A mesh cover, wherein a first through hole is provided on the mesh cover and an inner wall of the first through hole forms an annular inner arc surface;

[0008] A bracket, the bracket comprising a bracket body, a second through hole directly opposite to the first through hole is arranged on the bracket body, a bent flange is arranged on the first end surface corresponding to the second through hole on the bracket body, the flange extends into the first through hole along the axial direction of the second through hole, and the outer wall surface of the flange end is matched and connected with the annular inner arc surface, and a bearing portion is formed on the second end surface of the bracket body corresponding to the second through hole;

[0009] The motor comprises a motor body and a motor mounting portion connected to the motor body, wherein the motor body is fixedly connected to the bearing portion via the motor mounting portion.

[0010] In some embodiments, the outer wall surface of the flange end is an annular outer arc surface, and the annular inner arc surface is cooperatively connected with the annular outer arc surface.

[0011] In some embodiments, the motor mounting portion includes: a motor mounting surface, and the motor mounting surface is cooperatively connected with the second end surface.

[0012] In some embodiments, the motor mounting portion further includes a plurality of sealing ribs, each of the sealing ribs is disposed at an edge of the motor mounting surface, and the second end surface is cooperatively connected to each of the sealing ribs.

[0013] In some embodiments, the motor mounting portion further includes a plurality of motor mounting feet, the bottom of each of the motor mounting feet is flush with and matingly connected to the motor mounting surface, and the sealing rib is arranged between each of the motor mounting feet.

[0014] In some embodiments, the motor mounting surface, the sealing rib and the motor body are integrally formed.

[0015] In some embodiments, the overlap between the inner annular arc surface and the outer annular arc surface is not less than 1 mm.

[0016] In some embodiments, the overlap between the inner annular arc surface and the outer annular arc surface is not less than 2 mm.

[0017] In some embodiments, one end of the motor body is inserted into the second through hole.

[0018] In some embodiments, an overlapping dimension between the motor body and the second through hole along the axial direction is not less than 0.5 mm.

[0019] In some embodiments, an overlapping dimension between the motor body and the second through hole along the axial direction is not less than 1 mm.

[0020] An embodiment of the present application provides a waterproof motor, which includes: a mesh cover, a bracket and a motor, wherein a first through hole is arranged on the mesh cover and an annular inner arc surface is formed at the inner wall of the first through hole; the bracket includes a bracket body, a second through hole is arranged on the bracket body and is directly opposite to the first through hole, a bent flange is arranged on the first end face of the bracket body corresponding to the second through hole, the flange extends into the first through hole along the axial direction of the second through hole, and the outer wall surface at the end of the flange is matched and connected with the annular inner arc surface, and a bearing portion is formed on the second end face of the bracket body corresponding to the second through hole; the motor includes a motor body and a motor mounting portion connected to the motor body, and the motor body is fixedly connected to the bearing portion via the motor mounting portion.

[0021] In this way, the embodiment of the present application forms a labyrinth structure after the flange is connected with the inner arc surface of the mesh cover. The labyrinth structure can effectively prevent the direct intrusion of water flow, thereby preventing water from directly entering the motor and improving the waterproof performance of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure in which the stator and the motor end cover of the motor are separated in the related art;

[0023] Figure 2It is a cross-sectional schematic diagram of the connection between the stator and the motor end cover of the motor in the related art;

[0024] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0025] Figure 4 This is a schematic diagram of the connection structure of the mesh cover, bracket and motor of the waterproof motor of the embodiment of the present application;

[0026] Figure 5 A schematic diagram of the mesh cover structure provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the support structure provided in the embodiment of the present application;

[0028] Figure 7 A schematic diagram of the motor structure provided in an embodiment of the present application;

[0029] Figure 8 This is a schematic diagram of the structure of the mesh cover, bracket and motor of the waterproof motor of the embodiment of the present application being separated;

[0030] Fig. 9 for Figure 4 A cross-sectional diagram of a waterproof motor;

[0031] Fig.10 for Fig. 9 A local enlarged schematic diagram of point B in the middle.

[0032] Description of reference numerals:

[0033] 1. mesh cover; 11. first through hole; 111. annular inner arc surface; 112. mesh cover end surface;

[0034] 2. bracket; 21. bracket body; 211. second through hole;

[0035] 212, first end surface; 213, flange; 2131, annular outer arc surface; 214, second end surface;

[0036] 3. Motor; 31. Motor body; 311. Stator; 312. End cover;

[0037] 32. Motor mounting portion; 321. Motor mounting surface; 322. Sealing rib; 323. Motor mounting foot. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. All other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0039] In the description of the present application, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it can be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0040] In the description of the present application, the terms "first, second" and the like are only used to distinguish similar objects and do not represent a specific order of the objects. It is understandable that "first, second" and the like can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. Unless otherwise specified, "plurality" means at least two.

[0041] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", 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 application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] In the related art, for a motor, the motor includes a motor body, referring to Figure 1The motor body includes a stator 311 and a motor end cover 312, and the motor end cover 312 and the stator 311 can be matched and connected. The stator 311 is the core part of the motor, usually composed of an iron core and a winding. The iron core is made up of many thin sheets stacked together, and insulating paint is applied between these sheets to reduce eddy current losses. The winding is a wire wrapped around the iron core, which generates a magnetic field when current passes through it. The motor end cover 312 is a component used to protect the internal components of the motor and provide mechanical support. It can be made of metal or plastic and has a hole for installing a shaft or other accessories. In addition, the motor also includes a rotor, which consists of a central axis and a series of magnetic poles arranged around the axis. When current passes through the stator winding, a magnetic field is formed around the rotor, causing the rotor to start rotating.

[0045] In actual applications, when the power is turned on, the current passes through the windings in the stator, and according to the principle of electromagnetic induction, a rotating magnetic field is generated in the stator core. The direction and strength of this magnetic field change with the alternation of the current. The rotor inside the stator begins to rotate under the action of the rotating magnetic field generated by the stator. The conductor of the rotor cuts the magnetic lines of force, generating an induced current in the rotor conductor, which in turn generates a force that interacts with the stator magnetic field, pushing the rotor to rotate continuously. The rotational motion of the rotor is transmitted to the load through the motor shaft, realizing the conversion of electrical energy into mechanical energy.

[0046] In order to ensure the waterproof effect of the motor 3, the relevant technology adopts the following Figure 2 The waterproof structure shown, Figure 2 The end cover waterproof design is adopted. Figure 3 The enlarged view of the waterproof design of the end cap A is shown. Figure 2 and Figure 3 It can be seen that the motor end cover 312 and the stator 311 adopt an interference fit at the contact portion A3 and are tightly fitted at the contact portion A2. When rainwater penetrates from area A1, it can prevent rainwater from entering the motor 3. However, this structure has high requirements on process stability. If the component precision is not well controlled, the expected interference fit effect cannot be achieved.

[0047] Based on this, the present application embodiment provides a waterproof motor, please refer to Figure 4 The waterproof motor comprises: a mesh cover 1, a bracket 2 and a motor 3. The mesh cover 1, the bracket 2 and the motor 3 are sequentially connected along the axial direction, and the mesh cover 1 is arranged on the bracket 2 and covers the motor 3, thereby forming a sealed waterproof structure.

[0048] Please note that, please refer to Figure 5 A first through hole 11 is provided on the mesh cover 1 and an annular inner arc surface 111 is formed on the inner wall of the first through hole 11 .

[0049] Exemplarily, the mesh cover 1 is in an annular shape, and the annular mesh cover 1 includes a cover body and a first through hole 11 which is coaxial with the cover body and is arranged on the cover body, and an annular inner arc surface 111 is formed inside the first through hole 11. A mesh strip extending radially with the center of the circle of the mesh cover body as the center is arranged between the circumferential outer edge of the first through hole 11 and the edge of the mesh cover 1, and a plurality of mesh strips are distributed around the circumference of the mesh cover 1. A bracket end surface 112 corresponding to the bracket 2 is arranged on the side of the first through hole 11 corresponding to the bracket 2.

[0050] Please note that, please refer to Figure 6 The bracket 2 includes a bracket body 21 , on which a second through hole 211 facing the first through hole 11 is disposed, and a bent flange 213 is disposed on a first end surface 212 of the bracket body 21 corresponding to the second through hole 211 .

[0051] For example, please refer to Figure 6 The bracket 2 is square, and a ring-shaped bracket body 21 is embedded in the bracket 2. The bracket body 21 is provided with a second through hole 211 that is directly opposite to the first through hole 11. The second through hole 211 and the bracket body 21 have the same center. In this way, the bracket 2 and the mesh cover 1 can be directly connected along the axial direction through the first through hole 11 and the second through hole 211.

[0052] Exemplarily, a flange 213 folded outward is further provided on the first end face 212 of the bracket body 21 corresponding to the second through hole 211. The flange 213 is provided at the first end face 212 corresponding to the second through hole 211, and is used to cooperate with the annular inner arc surface 111 of the mesh cover 1. The bent flange 213 can not only prevent the connecting component from slipping, but also play a certain guiding role, helping to correctly align and insert the bracket, ensuring the smoothness of the assembly process and the reliability of the connection. In addition, a plurality of sector-shaped areas distributed radially are also provided on the bracket body 21.

[0053] It should be noted that the flange 213 extends axially along the second through hole 211 into the first through hole 11, and the outer wall surface at the end of the flange 213 is matched and connected with the annular inner arc surface 111, and the second end surface 214 of the bracket body 21 corresponding to the second through hole 211 forms a bearing portion.

[0054] For example, please refer to Figure 6, the flange 213 is used to engage with the first through hole 11 of the mesh cover 1, and the flange 213 extends along the axial direction of the second through hole 211, and finally enters the first through hole 11. Specifically, the end of the flange 213 is not simply inserted into the through hole, but is connected with the annular inner arc surface 111 through the outer wall surface of the end of the flange. Such a matching connection method not only enhances the stability of the structure, but also ensures the firm docking between the two components, prevents relative sliding or falling off, and thus fixes the mesh cover on the bracket 2. In this way, after the flange 213 is matched with the annular inner arc surface 111 of the mesh cover, the embodiment of the present application forms a layer of maze structure. The maze structure can effectively prevent the direct intrusion of water flow, thereby avoiding water from directly entering the motor and improving the waterproof performance of the motor.

[0055] In addition, in order to maintain the connection stability and durability between the bracket 2 and the motor 3 and increase the contact area and supporting force of the bracket, the bracket body 21 forms a bearing portion at the second end surface 214 near the second through hole 211 .

[0056] Please note that, please refer to Figure 7 The motor 3 includes a motor body 31 and a motor mounting portion 32 connected to the motor body 31 , and the motor body 31 is fixedly connected to the bearing portion via the motor mounting portion 32 .

[0057] For example, Figure 7 As shown, the motor mounting portion 32 can be sleeved on one end of the motor body 31, and the motor body 31 is fixedly connected to the bearing portion via the motor mounting portion 32. The motor body 31 includes a rotating part and a non-rotating part, and the motor end cover side refers to the end of the non-rotating part, and the motor end cover side is fixedly connected to the bearing portion via the motor mounting portion 32.

[0058] Exemplarily, the motor mounting portion 32 can be fixedly connected to the load-bearing portion by fasteners. For example, a screw hole is provided on the load-bearing portion, and the motor mounting portion 32 is provided with a mounting hole corresponding thereto. When the two are aligned, fasteners such as screws are passed through the mounting holes and screwed into the screw holes, thereby achieving a tight and reliable connection between the motor mounting portion 32 and the load-bearing portion.

[0059] The above installation method not only ensures the stability of the installation of the motor 3, but also facilitates the disassembly and maintenance of the motor 3. For example, when the motor 3 needs to be replaced or repaired, the motor and the bearing structure can be easily separated by loosening the corresponding fasteners without complicated operations, thereby improving the maintenance efficiency and flexibility of the equipment.

[0060] For example, please refer to Figure 8The mesh cover 1 is in a circular shape and is provided with a first through hole 11, and an annular inner arc surface 111 is formed on the inner wall of the first through hole; the bracket 2 includes a bracket body 21, which is square in shape, and is provided with a second through hole 211 axially corresponding to the first through hole 11, and an annular outer arc surface 213 is provided on the second through hole 211, and the annular surface 111 formed by the first through hole 11 of the mesh cover 1 is clamped with the annular outer arc surface 213 of the second through hole 211 of the bracket body 21; the second end face 214 of the bracket body 21 is fastened with the mounting foot 323 of the motor 3 by fasteners and then matched and connected.

[0061] In some embodiments, reference Figure 6 The outer wall surface of the end of the flange 213 is an annular outer arc surface 2131, and the annular inner arc surface 111 is matched and connected with the annular outer arc surface 2131.

[0062] In some embodiments, please refer to Figure 7 The motor mounting portion 32 includes: a motor mounting surface 321 , and the motor mounting surface 321 is matched and connected with the second end surface 214 .

[0063] It should be noted that if Figure 7 As shown, the motor mounting surface 321 is a region that directly contacts and connects with the bearing portion formed by the second end surface 214. The motor mounting surface 321 is matched and connected with the second end surface 214 of the bearing portion to ensure the stability and alignment of the motor 3 after installation. The matching connection between the motor mounting surface 321 and the second end surface 214 can be achieved by bolt fixing or the like.

[0064] In some embodiments, please refer to Figure 7 The motor mounting portion 32 further includes a plurality of sealing ribs 322 . Each sealing rib 322 is disposed at the edge of the motor mounting surface 321 . The second end surface 214 is cooperatively connected with each sealing rib 322 .

[0065] It is understandable that if Figure 7 As shown, in order to enhance the sealing performance of the connection between the mounting portion 32 and the bearing portion, the motor mounting portion 32 is also designed with a plurality of sealing ribs 322. These sealing ribs 322 are located at the edge of the motor mounting surface 321, and their function is that when the motor mounting portion 32 is matched with the second end surface 214 of the bearing portion, the sealing ribs 322 can be matched and connected with the second end surface 214 of the bearing portion, thereby forming a closed interface, so that a good sealing effect can be achieved without relying on additional sealing materials, effectively preventing dust, moisture or other external contaminants from invading the interior of the motor, and improving the reliability and service life of the motor.

[0066] In some embodiments, please refer to Figure 7The motor mounting portion 32 further includes a plurality of motor mounting feet 323 , the bottom of each motor mounting foot 323 is flush with and matingly connected to the motor mounting surface 321 , and a sealing rib 322 is disposed between each motor mounting foot 323 .

[0067] It should be noted that if Figure 7 As shown, a plurality of motor mounting feet 323 are provided on the motor mounting portion 32. The mounting feet 323 serve as supporting points that directly contact the bearing portion, thereby enhancing the stability of the motor 3 during installation and the ability to evenly distribute the load. In order to ensure that the mounting feet 323 can achieve smooth contact with the surface of the bearing portion during installation, thereby ensuring a good stress state and overall stability, the bottom of each mounting foot 323 is flush with the motor mounting surface 321.

[0068] It is understandable that the sealing ribs 322 are arranged between the motor mounting feet 323. Such a structure does not affect the direct support function of the mounting feet 323, but also utilizes the space between the mounting feet 323. An additional sealing layer is added through the sealing ribs 322, which further blocks the intrusion of external factors such as dust and water vapor into the motor. The sealing ribs 322 are connected with the bearing part to form a continuous sealing line, which improves the protection level of the motor 3 in harsh environments.

[0069] In some embodiments, the motor mounting surface 321 , the sealing rib 322 and the motor body 31 are integrally formed.

[0070] It should be noted that the motor mounting surface 321, the sealing rib 322 and the motor body 31 adopt an integrated manufacturing process to form an integrated structure. Through integrated molding, the motor mounting surface, the sealing rib and the motor body become a single, continuous component, eliminating the cumbersome steps of separately manufacturing each part and then assembling it in traditional assembly.

[0071] In addition, since the motor mounting surface 321, the sealing rib 322 and the motor body 31 are continuously formed, there is no seam or assembly gap, which greatly enhances the sealing effect. Compared with the split design, the one-piece sealing structure can more effectively prevent the penetration of moisture and extend the service life of the motor 3. Due to the stronger structure and good sealing, the one-piece motor components reduce the maintenance frequency caused by loose assembly, sealing failure and other problems, and reduce costs.

[0072] In some embodiments, the overlap between the annular inner arc surface 111 and the annular outer arc surface 2131 is not less than 1 mm.

[0073] Please note that, please refer to Fig. 9 , Fig. 9 for Figure 4 A cross-sectional diagram of a waterproof motor. Fig. 9Part B shows the matching connection between the mesh cover 1, the bracket 2 and the motor 3. The mesh cover 1 is located at the front end of the entire waterproof motor structure. The mesh cover 1 is fixed on one side of the bracket 2, the motor is installed on the side of the bracket 2 away from the mesh cover 1, and the motor 3 is installed on the other side of the bracket 2. The matching connection between the mesh cover 1 and the bracket 2, and the motor 3 and the bracket 2 together constitute a relatively closed space, which can prevent most splashing water and dust from entering the motor, thereby improving the waterproof performance of the motor.

[0074] Please note that, please refer to Fig.10 , Fig.10 for Fig. 9 A partial enlarged schematic diagram of the matching portion B between the middle grille 1, the bracket 2 and the motor 3. The overlap between the annular inner arc surface 111 and the annular outer arc surface 2131 can be represented by L1. In order to prevent the penetration of liquid or small particles, L1 is not less than 1 mm.

[0075] In some embodiments, the overlap between the annular inner arc surface 111 and the annular outer arc surface 2131 is not less than 2 mm.

[0076] It can be understood that the overlap L1 between the annular inner arc surface 111 and the annular outer arc surface 2131 can be no less than 2 mm. Further increasing the overlap between the annular inner arc surface 111 and the annular outer arc surface 2131 can further enhance the sealing of the connection and the stability of the structure, and can more effectively block the influence of the external environment, such as more thoroughly preventing dust and water vapor from penetrating.

[0077] In some embodiments, one end of the motor body 31 is disposed inside the second through hole 211 .

[0078] It should be noted that in order to ensure that the motor is supported by the bracket 2 in the radial direction and can also be fixed by the bracket 2 in the axial direction, thereby enhancing the rigidity and stability of the overall structure, one end of the motor body 31 is passed through the inside of the second through hole 211 of the bracket to ensure that one end of the motor body 31 can penetrate into the second through hole 211 of the bracket 2, and then the motor 3 is installed on the bracket 2 based on the tight connection between the mounting portion 321 and the receiving portion.

[0079] In some embodiments, the overlap dimension between the motor body 31 and the second through hole 211 along the axial direction is not less than 0.5 mm.

[0080] It should be noted that if Fig.10 As shown, the axial direction here refers to the direction of the motor 3 axis, and the overlapping dimension between the motor body 31 and the second through hole 211 along the axial direction is L2, and L2 is not less than 0.5 mm.

[0081] In some embodiments, an overlap dimension between the motor body and the second through hole along the axial direction is not less than 1 mm.

[0082] It should be noted that the overlap dimension L2 between the motor body 31 and the second through hole 211 along the axial direction may be no less than 1 mm.

[0083] The structure of the waterproof motor is described in detail below with reference to an application example. The structure can solve the problem of outdoor air-conditioner motor protection and achieve effective waterproofing of the motor.

[0084] This application example provides a motor waterproof structure, which is mainly achieved by a maze structure formed by the intersection of the inner arc surface 111 of the mesh cover 1 and the inner arc surface 2131 of the bracket flange 213, and the sealing rib 322 of the motor 3 and the mounting surface 214 of the bracket 2. Effective waterproofing of the motor 3 is achieved, thereby solving the motor waterproofing problem from a design perspective.

[0085] In practical applications, such as Fig.10 As shown, the inner arc surface 111 of the mesh cover 1 and the outer arc surface 2131 of the bracket flange 213 cross to form a maze structure, and the overlap length L1 is ≥ 2mm; the bracket flange 21 is higher than the motor 3, and the overlap length L2 is ≥ 1mm. Fig.10 In the figure, the arrow direction is the flow direction of rainwater. The solid arrow indicates that rainwater flows into the motor from the side of the mesh cover. Due to the maze structure formed by the intersection of the inner arc surface 111 of the mesh cover 1 and the outer arc surface 2131 of the bracket flange 213, effective waterproofing of the motor 3 is achieved. The dotted arrow indicates that rainwater flows into the motor from the side of the bracket. Due to the close fit between the motor sealing rib 311 and the mounting surface 22 of the bracket 2, effective waterproofing of the motor 3 is further achieved.

[0086] In actual application, there is a sealing rib 322 between the mounting feet 323 of the motor 3, and its sealing surface 322 is flush with the bottom surface of the mounting feet 323; the sealing surface 321 is tightly fitted with the mounting surface 214 of the bracket 2. The sealing rib 322 and the motor body 31 are integrally formed.

[0087] It should be noted that the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0088] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A waterproof motor, characterized in that: The waterproof motor comprises: A mesh cover, wherein a first through hole is provided on the mesh cover and an inner wall of the first through hole forms an annular inner arc surface; A bracket, the bracket comprising a bracket body, the bracket body being provided with a second through hole directly opposite to the first through hole, the bracket body being provided with a bent flange corresponding to a first end surface of the second through hole, the flange extending into the first through hole along an axial direction of the second through hole, and an outer wall surface of a terminal end of the flange being matched and connected with the annular inner arc surface, and a bearing portion being formed on a second end surface of the bracket body corresponding to the second through hole; The motor comprises a motor body and a motor mounting portion connected to the motor body, wherein the motor body is fixedly connected to the bearing portion via the motor mounting portion.

2. The waterproof motor according to claim 1, characterized in that: The outer wall surface of the flange end is an annular outer arc surface, and the annular inner arc surface is matched and connected with the annular outer arc surface.

3. The waterproof motor according to claim 1, characterized in that: The motor mounting portion includes: a motor mounting surface, and the motor mounting surface is cooperatively connected with the second end surface.

4. The waterproof motor according to claim 3, characterized in that: The motor mounting portion further comprises a plurality of sealing ribs, each of which is arranged at an edge of the motor mounting surface, and the second end surface is cooperatively connected with each of the sealing ribs.

5. The waterproof motor according to claim 4, characterized in that: The motor mounting portion further comprises a plurality of motor mounting feet, the bottom of each of the motor mounting feet is flush with and cooperatively connected to the motor mounting surface, and the sealing ribs are arranged between each of the motor mounting feet.

6. The waterproof motor according to claim 5, characterized in that: The motor mounting surface, the sealing rib and the motor body are integrally formed.

7. The waterproof motor according to claim 2, characterized in that: The overlap between the annular inner arc surface and the annular outer arc surface is not less than 1 mm.

8. The waterproof motor according to claim 2, characterized in that: The overlap between the annular inner arc surface and the annular outer arc surface is not less than 2 mm.

9. The waterproof motor according to claim 1, characterized in that: One end of the motor body is inserted into the second through hole.

10. The waterproof motor according to claim 9, characterized in that: An overlapping dimension between the motor body and the second through hole along the axial direction is not less than 0.5 mm.

11. The waterproof motor according to claim 9, characterized in that: An overlapping dimension between the motor body and the second through hole along the axial direction is not less than 1 mm.