Motor waterproof structure, motor assembly and air conditioner

Abstract

The invention provides a motor waterproof structure, a motor assembly and an air conditioner. The motor waterproof structure comprises a protective cover plate (1) and a waterproof cap (2), the protective cover plate (1) is provided with a motor mounting cavity (3), the waterproof cap (2) is arranged at the top of the protective cover plate (1) and can rotate relative to the protective cover plate (1), a shaft hole (4) and a rotating groove (5) are formed in the top of the protective cover plate (1), the shaft hole (4) is located in the inner circumferential side of the rotating groove (5), and the waterproof cap (2) can be rotatably arranged in the rotating groove (5). The waterproof cap (2) is in sealed connection with the motor shaft (6) and rotates along with the motor shaft (6), and water in the rotating groove (5) can be discharged in the direction away from the shaft hole (4) through the surface of the protective cover plate (1). According to the motor waterproof structure, water flow can be effectively prevented from entering the motor to damage the motor, and the working reliability of the motor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a motor waterproof structure, a motor component and an air conditioner. Background Art

[0002] With the popularity of air-conditioning appliances and the increasingly hot weather, consumers hope that cabinets in living rooms and office areas can cool down quickly. Round cabinets were born to meet market demand. They are popular among consumers for their large vertical air outlet design, large air volume and fast cooling.

[0003] Since the circular track adopts a vertical air outlet design, the motor inside the air conditioner needs to be installed vertically along the axis, and the motor shaft drives the air conditioner blades to rotate. The condensed water generated by the air conditioner during cooling has the potential risk of water droplets flowing down along the impeller and condenser into the motor when the blades rotate at high speed; in addition, when the air conditioner is cleaned, a large amount of water droplets will flow from the blades to the motor and flow into the motor from the motor shaft hole, causing the motor to burn out. The water droplets that do not enter the motor from the shaft hole will form water accumulation on the motor cover, most of which will flow out from the drip holes of the cover, and a small part will penetrate into the motor from the joint gap of the cover, causing the motor to be in a humid environment for a long time, causing corrosion and rust, affecting the performance of the air conditioner, and causing after-sales complaints. Summary of the invention

[0004] The main purpose of the present invention is to provide a motor waterproof structure, a motor assembly and an air conditioner, which can effectively prevent water from entering the interior of the motor and causing damage to the motor, thereby improving the working reliability of the motor.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a motor waterproof structure is provided, including a protective cover plate and a waterproof cap, the protective cover plate having a motor installation cavity, the waterproof cap being arranged on the top of the protective cover plate and being capable of rotating relative to the protective cover plate, an axial hole and a rotating groove being arranged on the top of the protective cover plate, the axial hole being located on the inner circumference side of the rotating groove, the waterproof cap being rotatably arranged in the rotating groove, the waterproof cap being constructed to be sealed and connected to the motor shaft and rotate with the motor shaft, and the water in the rotating groove can be discharged through the surface of the protective cover plate in a direction away from the axial hole.

[0006] Furthermore, a first guide groove is provided on the top of the protective cover plate, a first end of the first guide groove is connected to the rotating groove, and a drain outlet is provided at the second end of the first guide groove; and / or, a preset gap is provided between the bottom of the waterproof cap and the bottom of the rotating groove, and a height of the bottom of the waterproof cap is lower than a height of the top of the rotating groove.

[0007] Further, the protective cover plate includes a first cover plate and a second cover plate, the first cover plate includes a first top cover, the second cover plate includes a second top cover, the first top cover is located below the second top cover, and the first top cover is provided with a first water retaining side plate at an edge of a side close to the second top cover, the first water retaining side plate is located on a side of the first edge of the second top cover away from the first top cover, the first edge of the second top cover is an edge of the second top cover close to the first top cover, a first guide groove is provided on the top of the first top cover, the height of the first water retaining side plate is higher than the bottom height of the first guide groove, a rotating groove is provided on the second top cover, the first end of the first guide groove is located below the outlet of the rotating groove, and a drain outlet is provided at the second end of the first guide groove.

[0008] Furthermore, a second guide groove is opened on the second top cover, and the second guide groove is connected with the rotating groove. A second water retaining side plate is arranged on the side of the second guide groove close to the first top cover, and a water outlet and a rotating groove are arranged on the second water retaining side plate. The water outlet is connected with the second guide groove, and the water outlet is located above the first guide groove, and guides the water in the second guide groove to the first guide groove.

[0009] Furthermore, the inner wall diameter a of the rotating groove is smaller than the inner wall diameter d1 of the waterproof cap and larger than the diameter of the shaft hole, and the outer wall diameter b of the rotating groove is larger than the outer wall diameter d2 of the waterproof cap.

[0010] Furthermore, the second water retaining side plate is provided with an extension portion at the rotating groove, the extension portion protrudes laterally toward the first top cover, the rotating groove passes through the extension portion, and the first water retaining side plate is provided with a first embedded groove corresponding to the extension portion, the groove bottom height of the first embedded groove is higher than the groove bottom height of the first guide groove, the extension portion is embedded in the first embedded groove, and a sealing fit is formed between the first embedded groove.

[0011] Furthermore, the second water retaining side plate is provided with a water guiding protrusion at the water outlet, which protrudes laterally toward the first top cover, and the water outlet passes through the water guiding protrusion along the water outlet direction. The first water retaining side plate is provided with a second embedding groove corresponding to the water guiding protrusion, and the bottom height of the second embedding groove is higher than the bottom height of the first guide groove. The water guiding protrusion is embedded in the second embedding groove and forms a sealing fit with the second embedding groove.

[0012] Furthermore, the water outlet is arranged on a side of the rotating groove away from the axial hole, and the bottom heights of the rotating groove and the second guide groove decrease gradually along the direction approaching the water outlet.

[0013] Furthermore, the water outlet is arranged on the side of the rotating groove away from the axial hole, the outer wall of the rotating groove on the side of the axial hole away from the water outlet is flush with the first side wall of the first guide groove or is located on the inner side of the first side wall, and the outer wall of the water outlet is flush with the second side wall of the first guide groove or is located on the inner side of the second side wall.

[0014] Furthermore, a noise reduction protrusion is arranged in the first guide groove, and the noise reduction protrusion is arranged at the lower side of the water outlet along the water outlet direction of the water outlet.

[0015] Further, the bottom height of the first guide groove decreases along the direction approaching the water outlet; and / or, the width of the first guide groove decreases along the direction approaching the drain outlet.

[0016] Further, a fixing column is provided on the side of the first top cover facing the second top cover, a fixing hole is provided on the side of the second top cover facing the first top cover, and the fixing column is inserted into the fixing hole; or, a fixing hole is provided on the side of the first top cover facing the second top cover, a fixing column is provided on the side of the second top cover facing the first top cover, and the fixing column is inserted into the fixing hole.

[0017] Furthermore, the first cover plate also includes a first side plate, a first top cover is arranged on the top of the first side plate and fixedly connected to the first side plate, the second cover plate also includes a second side plate, the second top cover is arranged on the top of the second side plate and fixedly connected to the second side plate, and the first cover plate and the second cover plate enclose a motor mounting cavity.

[0018] According to another aspect of the present invention, a motor assembly is provided, including a motor waterproof structure and a motor. The motor waterproof structure is the above-mentioned motor waterproof structure, and the motor is installed in the motor installation cavity.

[0019] According to another aspect of the present invention, an air conditioner is provided, comprising a motor waterproof structure and a motor, wherein the motor waterproof structure is the above-mentioned motor waterproof structure, and the motor is installed in the motor installation cavity.

[0020] By applying the technical solution of the present invention, the motor waterproof structure includes a protective cover plate and a waterproof cap, the protective cover plate has a motor installation cavity, the waterproof cap is arranged on the top of the protective cover plate and can rotate relative to the protective cover plate, the top of the protective cover plate is provided with an axial hole and a rotation groove, the axial hole is located on the inner circumference side of the rotation groove, the waterproof cap can be rotatably arranged in the rotation groove, the waterproof cap is constructed to be sealed and connected with the motor shaft, and rotates with the motor shaft, and the water in the rotation groove can be discharged through the surface of the protective cover plate in a direction away from the axial hole. The waterproof structure of the motor adopts a structure that combines a waterproof cover plate and a waterproof cap, and utilizes the rotating groove on the protective cover plate to form an avoidance match with the waterproof cap, so that the waterproof cap can rotate synchronously with the motor, forming an axial seal for the motor, and preventing water from flowing into the interior of the motor along the axial direction of the motor. At the same time, the water on the waterproof cap can fall into the rotating groove along the waterproof cap. Since the height of the rotating groove is lower than the height of the protective cover plate outside the shaft hole, the water in the rotating groove will not enter the shaft hole from the rotating groove. The surface of the protective cover plate can discharge the water in a direction away from the shaft hole, avoiding water accumulation on the surface of the protective cover plate, improving the drainage effect of the protective cover plate, and ensuring that the motor can effectively prevent water from entering the motor from the shaft hole when it is stationary and running, effectively preventing water from entering the interior of the motor and causing damage to the motor, and improving the working reliability of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 A schematic diagram showing the three-dimensional structure of a motor assembly according to an embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram showing the three-dimensional structure of the second cover plate of the motor waterproof structure according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram showing the three-dimensional structure of the second cover plate of the motor waterproof structure according to an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram showing the three-dimensional structure of the first cover plate of the motor waterproof structure according to an embodiment of the present invention is shown;

[0026] Figure 5 A schematic diagram showing the three-dimensional structure of the second cover plate of the motor waterproof structure according to an embodiment of the present invention is shown;

[0027] Figure 6 Shows Figure 5 Schematic diagram of the enlarged structure at A;

[0028] Figure 7A schematic diagram of a partial cross-sectional structure of a motor assembly at a waterproof cap according to an embodiment of the present invention is shown;

[0029] Figure 8 Shows Figure 7 Schematic diagram of the enlarged structure at B;

[0030] Fig. 9 A schematic cross-sectional view of a motor assembly according to an embodiment of the present invention is shown;

[0031] Fig.10 A schematic diagram showing the water flow structure of the protective cover plate of the motor assembly according to an embodiment of the present invention is shown;

[0032] Fig.11 A schematic diagram showing the water flow structure of the first cover plate of the motor assembly of an embodiment of the present invention; and

[0033] Fig.12 A schematic diagram of the water flow structure of the second cover plate of the motor assembly of an embodiment of the present invention is shown.

[0034] The above drawings include the following reference numerals:

[0035] 1. Protective cover; 2. Waterproof cap; 3. Motor installation cavity; 4. Shaft hole; 5. Rotation groove; 6. Motor shaft; 7. First guide groove; 8. Drain port; 9. First cover; 10. Second cover; 11. First top cover; 12. Second top cover; 13. First water retaining side plate; 14. Second guide groove; 15. Second water retaining side plate; 16. Water outlet; 17. Extension; 18. First embedded groove; 19. Water guide convex part; 20. Second embedded groove; 21. Noise reduction convex part; 22. Fixing column; 23. Fixing hole; 24. First side plate; 25. Second side plate; 26. Motor. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] See also Figures 1 to 12 As shown, according to an embodiment of the present invention, the motor waterproof structure includes a protective cover plate 1 and a waterproof cap 2, the protective cover plate 1 has a motor installation cavity 3, the waterproof cap 2 is arranged on the top of the protective cover plate 1, and can rotate relative to the protective cover plate 1, the top of the protective cover plate 1 is provided with an axial hole 4 and a rotation groove 5, the axial hole 4 is located on the inner circumference of the rotation groove 5, the waterproof cap 2 can be rotatably arranged in the rotation groove 5, the waterproof cap 2 is constructed to be sealed and connected with the motor shaft 6, and rotates with the motor shaft 6, and the water in the rotation groove 5 can be discharged through the surface of the protective cover plate 1 in the direction away from the axial hole 4.

[0038] The waterproof structure of the motor adopts a structure that combines a waterproof cover plate and a waterproof cap 2, and utilizes the rotating groove 5 on the protective cover plate 1 to form an avoidance fit with the waterproof cap 2, so that the waterproof cap 2 can rotate synchronously with the motor, forming an axial seal for the motor, and preventing water from flowing into the interior of the motor along the motor shaft 6. At the same time, the water on the waterproof cap 2 can fall into the rotating groove 5 along the waterproof cap 2. Since the height of the rotating groove 5 is lower than the height of the protective cover plate 1 outside the shaft hole 4, the water in the rotating groove 5 will not enter the shaft hole 4 from the rotating groove 5. The surface of the protective cover plate 1 can discharge the water in a direction away from the shaft hole 4, avoiding the accumulation of water on the surface of the protective cover plate 1, improving the drainage effect of the protective cover plate 1, and ensuring that the motor can effectively prevent water from entering the motor from the shaft hole 4 when it is stationary and running, effectively preventing water from entering the interior of the motor and causing damage to the motor, and improving the working reliability of the motor.

[0039] In this embodiment, the water in the rotating groove 5 can be discharged through the surface of the protective cover 1 in the direction away from the shaft hole 4. There are many ways to achieve this. It is necessary to ensure that the surface height of the protective cover 1 outside the rotating groove 5 is lower than the surface height of the protective cover 1 between the rotating groove 5 and the shaft hole 4 to prevent the water flow in the rotating groove 5 from entering the motor 26 from the shaft hole 4 and causing damage to the motor.

[0040] In this embodiment, since the water in the rotating groove 5 can be discharged through the surface of the protective cover 1 in a direction away from the shaft hole 4, a water drainage path can be formed on the protective cover 1, so that the water on the protective cover 1 can flow away quickly, avoiding large amounts of water accumulation and penetration, which may affect the motor 26.

[0041] In one embodiment, the upper surface of the protective cover plate 1 located on the outer peripheral side of the rotating groove 5 is a slope structure with a height decreasing from the rotating groove 5 to the outer periphery. The slope structure can be a plane or a curved surface.

[0042] In one embodiment, a guide groove is provided on the outer peripheral side of the rotating groove 5, and the guide groove extends from the rotating groove 5 to the drain outlet 8, or directly extends from the rotating groove 5 to the outer peripheral edge of the protective cover plate 1, so that the water in the rotating groove 5 is directly led out through the guide groove. The bottom height of the guide groove at the connection position with the rotating groove 5 is flush with the bottom height of the rotating groove 5 or lower than the bottom height of the rotating groove 5, so as to facilitate the full discharge of the water in the rotating groove 5.

[0043] In one embodiment, a guide groove is provided on the outer peripheral side of the rotating groove 5, and the guide groove is connected with the rotating groove 5, and there is no direct connection between the two. The guide groove is located at the lower side of the rotating groove 5, and the rotating groove 5 has a water flow outlet, and the water flow outlet faces the guide groove. After the water flows out from the water flow outlet of the rotating groove 5, it falls into the guide groove and flows away from the guide groove, thereby preventing the water from flowing into the motor 26 from the shaft hole 4.

[0044] In one embodiment, a first guide groove 7 is disposed on the top of the protective cover plate 1 , a first end of the first guide groove 7 is connected to the rotating groove 5 , and a drain port 8 is disposed at the second end of the first guide groove 7 .

[0045] In this embodiment, the protective cover 1 is an integral structure, and a first guide groove 7 is arranged on the top of the protective cover 1. The first guide groove 7 is connected with the rotating groove 5 and the drain port 8, so that a water drainage channel can be formed on the top of the protective cover 1, so that the water on the top of the protective cover 1 can quickly flow to the drain port 8 through the first guide groove 7 and be discharged from the drain port 8. Since the protective cover 1 is an integral structure, there is no splicing gap, and water cannot enter the motor 26 from the splicing gap of the protective cover 1, which can form a better protection for the motor 26 and have a more effective waterproof effect.

[0046] In one embodiment, there is a preset gap between the bottom of the waterproof cap 2 and the bottom of the rotating groove 5 , and the height of the bottom of the waterproof cap 2 is lower than the height of the top of the rotating groove 5 .

[0047] In this embodiment, the bottom of the waterproof cap 2 is located between the bottom of the rotating groove 5 and the top of the rotating groove 5, so that the waterproof cap 2 can be maintained in the rotating groove 5, forming a good seal for the shaft hole 4 of the motor 26, and will not generate friction with the bottom of the rotating groove 5, and will not affect the rotation effect of the motor shaft 6, and can more effectively prevent water from entering and splashing into the motor 26.

[0048] In one embodiment, the protective cover plate 1 includes a first cover plate 9 and a second cover plate 10, the first cover plate 9 includes a first top cover 11, the second cover plate 10 includes a second top cover 12, the first top cover 11 is located below the second top cover 12, and the first top cover 11 is provided with a first water retaining side plate 13 at an edge of a side close to the second top cover 12, the first water retaining side plate 13 is located on a side of the first edge of the second top cover 12 away from the first top cover 11, the first edge of the second top cover 12 is the edge of the second top cover 12 close to the first top cover 11, a first guide groove 7 is provided on the top of the first top cover 11, the height of the first water retaining side plate 13 is higher than the bottom height of the first guide groove 7, a rotating groove 5 is provided on the second top cover 12, the first end of the first guide groove 7 is located below the outlet of the rotating groove 5, and a drain outlet 8 is provided at the second end of the first guide groove 7.

[0049] In this embodiment, the protective cover plate 1 adopts a split structure, including a first cover plate 9 and a second cover plate 10, and the first top cover 11 of the first cover plate 9 and the second top cover 12 of the second cover plate 10 are displaced up and down, so that the water flow cannot enter the motor 26 from the upper and lower directions through the matching gap between the first top cover 11 and the second top cover 12. The first top cover 11 is provided with a first water retaining side plate 13 at the edge of one side close to the second top cover 12, and the first water retaining side plate 13 is located on the side of the edge of the second top cover 12 away from the first top cover 11, so that the first water retaining side plate 13 is located on the inner side of the second top cover 12, and when the water flow left on the second top cover 12 located above enters the first guide groove 7, since the height of the first water retaining side plate 13 is higher than the bottom surface height of the first guide groove 7, the water flow entering the first guide groove 7 will be blocked by the first water retaining side plate 13 and will not flow into the shaft hole 4 below the second top cover 12, thereby avoiding the risk of water entering the motor after entering the first guide groove 7.

[0050] The first end of the first guide groove 7 is located below the outlet of the rotating groove 5, and the second end of the first guide groove 7 is provided with a drain port 8. After the water in the rotating groove 5 flows out from the outlet, it will fall into the first guide groove 7, flow along the first guide groove 7, and be discharged from the drain port 8. Under the blocking effect of the first water retaining side plate 13 on the outer side of the first guide groove 7, the risk of the water in the rotating groove 5 entering the motor 26 through the fitting gap between the first top cover 11 and the second top cover 12 is avoided.

[0051] In one embodiment, a second guide groove 14 is provided on the second top cover 12, and the second guide groove 14 is connected to the rotating groove 5. A second water retaining side plate 15 is provided on the side of the second guide groove 14 close to the first top cover 11. A water outlet 16 and the rotating groove 5 are provided on the second water retaining side plate 15. The water outlet 16 is connected to the second guide groove 14, and the water outlet 16 is located above the first guide groove 7, and guides the water in the second guide groove 14 to the first guide groove 7.

[0052] In this embodiment, a second guide groove 14 is provided on the second top cover 12, and the second guide groove 14 is connected with the rotating groove 5, and the water in the rotating groove 5 can flow to the second guide groove 14, and enter the first guide groove 7 from the second guide groove 14 through the water outlet 16, so as to realize the water diversion. A second water retaining side plate 15 is provided on the outer side of the second guide groove 14, and the rotating groove 5 and the water outlet 16 are provided on the second water retaining side plate 15, and the second water retaining side plate 15 can block the water in the second guide groove 14, so that the water in the second guide groove 14 can only flow to the first guide groove 7 through the water outlet 16 and the rotating groove 5, thereby limiting the flow of water, ensuring that the water accurately falls into the first guide groove 7, and improving the water diversion and control effect. The water outlet 16 and the outlet of the rotating groove 5 are both located within the area of ​​the first guide groove 7, ensuring the first guide groove 7 to converge and guide the water on the second top cover 12, preventing water from flowing to other areas and entering the motor, thereby improving the waterproof performance.

[0053] In one embodiment, the inner wall diameter a of the rotating groove 5 is smaller than the inner wall diameter d1 of the waterproof cap 2 and larger than the diameter of the shaft hole 4 , and the outer wall diameter b of the rotating groove 5 is larger than the outer wall diameter d2 of the waterproof cap 2 .

[0054] In this embodiment, the waterproof cap 2 is a cap-shaped rubber ring. Since the inner wall diameter a of the rotating groove 5 is smaller than the inner wall diameter d1 of the waterproof cap 2 and larger than the diameter of the axial hole 4, the outer wall diameter b of the rotating groove 5 is larger than the outer wall diameter d2 of the waterproof cap 2. Therefore, the inner wall and the outer wall of the waterproof cap 2 do not contact the rotating groove 5, thereby reducing the wear of the waterproof cap 2 during rotation and the friction noise during rotation.

[0055] In one embodiment, the second water retaining side plate 15 is provided with an extension portion 17 at the rotating groove 5, and the extension portion 17 protrudes laterally toward the first top cover 11. The rotating groove 5 passes through the extension portion 17. The first water retaining side plate 13 is provided with a first embedded groove 18 corresponding to the extension portion 17. The groove bottom height of the first embedded groove 18 is higher than the groove bottom height of the first guide groove 7. The extension portion 17 is embedded in the first embedded groove 18 and forms a sealing fit with the first embedded groove 18.

[0056] In this embodiment, an extension portion 17 is provided at the rotating groove 5, and the guiding effect of the extension portion 17 can be utilized to increase the conveying distance of the rotating groove 5 at the water outlet position, so that the water at the rotating groove 5 can fall into an area farther from the matching position of the first top cover 11 and the second top cover 12 under the action of the extension portion 17, thereby more effectively preventing the water left on the waterproof cap 2 from being discharged to the bottom of the second top cover 12, and achieving a better waterproof effect.

[0057] The first water retaining side plate 13 is provided with a first embedding groove 18 at a position corresponding to the extension portion 17. The first extension portion 17 is embedded in the first embedding groove 18 and can form a sealing match with the first embedding groove 18, thereby more effectively preventing water from entering the shaft hole 4 from the matching position of the first extension portion 17 and the first embedding groove 18. The bottom height of the first embedding groove 18 is higher than the height of the first guide groove 7, thereby effectively preventing water from accumulating and penetrating into the motor from the matching position of the first extension portion 17 and the first embedding groove 18, thereby improving the waterproof performance of the motor.

[0058] In one embodiment, the second water retaining side plate 15 is provided with a water guiding protrusion 19 protruding laterally toward the first top cover 11 at the water outlet 16, and the water outlet 16 penetrates the water guiding protrusion 19 along the water outlet direction. The first water retaining side plate 13 is provided with a second embedding groove 20 corresponding to the water guiding protrusion 19, and the groove bottom height of the second embedding groove 20 is higher than the groove bottom height of the first guide groove 7. The water guiding protrusion 19 is embedded in the second embedding groove 20 and forms a sealing fit with the second embedding groove 20.

[0059] In this embodiment, by arranging the water-guiding protrusion 19 on the second water-retaining side plate 15, the water-guiding protrusion 19 can be used to increase the drainage distance of the water outlet 16, so that the drainage position of the water outlet 16 is far away from the matching position of the first top cover 11 and the second top cover 12, and the water-guiding protrusion 19 on the second water-retaining side plate 15 and the second embedded groove 20 on the first water-retaining side plate 13 can form a sealing match with the second embedded groove 20, thereby effectively preventing water from entering the motor 26 from the matching position of the water-guiding protrusion 19 and the second embedded groove 20. The bottom height of the second embedded groove 20 is higher than the height of the first guide groove 7, which can effectively prevent water from accumulating and penetrating into the motor from the matching position of the water-guiding protrusion 19 and the second embedded groove 20, thereby improving the waterproof performance of the motor.

[0060] In one embodiment, the water outlet 16 is disposed on a side of the rotating groove 5 away from the shaft hole 4 , and the bottom heights of the rotating groove 5 and the second guide groove 14 decrease gradually along a direction approaching the water outlet 16 .

[0061] In this embodiment, the bottom heights of the rotating groove 5 and the second guide groove 14 decrease gradually in the direction approaching the water outlet 16, forming a slope structure, so that the water at the rotating groove 5 and the second guide groove 14 can more conveniently gather at the water outlet 16 and be discharged from the water outlet 16.

[0062] In one embodiment, the bottom height of the rotating groove 5 is the same as the bottom height of the second guide groove 14 at the connecting position of the rotating groove 5, so that the water flow can be conveniently gathered from the second guide groove 14 and the rotating groove 5 to the water outlet 16, and can also be directly discharged from the outlet of the rotating groove 5, thereby improving the drainage efficiency.

[0063] In one embodiment, the top surface of the first water retaining side plate 13 and the bottom surface of the second top cover 12 form a press-fit sealing fit at the matching position, that is, the first embedded groove 18 on the first water retaining side plate 13 and the extension 17 on the second water retaining side plate 15 form a sealing fit on the bottom surface and the side wall, the second embedded groove 20 on the first water retaining side plate 13 and the water guiding protrusion 19 on the second water retaining side plate 15 form a sealing fit on the bottom surface and the side wall, and the top surface of other positions of the first water retaining side plate 13 and the mating surface of the laterally extending pressure plate of the second water retaining side plate 15 form a sealing fit, thereby forming a comprehensive sealing fit at the connection position between the first top cover 11 and the second top cover 12, effectively preventing water from falling from above from penetrating or flowing into the motor 26 from the splicing position of the first top cover 11 and the second top cover 12, thereby improving the waterproof effect of the protective cover plate 1. The pressure plate extends laterally from the top of the second water retaining side plate 15 and covers the first water retaining side plate 13, which not only avoids interference between the vertical plate of the second water retaining side plate 15 and the first water retaining side plate 13, but also ensures the sealing effect of the second water retaining side plate 15 and the first water retaining side plate 13 at the matching surface. The structure is simple and easy to implement.

[0064] In one embodiment, the water outlet 16 is arranged on the side of the rotating groove 5 away from the axial hole 4, the outer wall of the rotating groove 5 on the side of the axial hole 4 away from the water outlet 16 is flush with the first side wall of the first guide groove 7 or is located on the inner side of the first side wall, and the outer wall of the water outlet 16 is flush with the second side wall of the first guide groove 7 or is located on the inner side of the second side wall.

[0065] In this embodiment, by limiting the correspondence between the two side walls of the first guide groove 7 and the positions of the various flow channels on the second top cover 12, it can be ensured that the water flowing out from the water outlet 16 of the second top cover 12 and the rotating groove 5 can fall within the diversion range of the first guide groove 7 and be discharged from the drain outlet 8 through the diversion of the first guide groove 7.

[0066] In one embodiment, a noise reduction protrusion 21 is disposed in the first guide groove 7 , and the noise reduction protrusion 21 is disposed at the lower side of the water outlet 16 along the water outlet direction of the water outlet 16 .

[0067] In this embodiment, there is a drop in height between the first guide groove 7 and the water outlet 16. This drop in height causes a large water flow impact noise to be generated when the water at the water outlet 16 flows to the first guide groove 7. By setting a noise reduction protrusion 21 at a position of the first guide groove 7 corresponding to the water outlet 16, the drop in water flow can be reduced, so that the water flow diameter impacts the noise reduction protrusion 21 and flows downward from the noise reduction protrusion 21 to the first guide groove 7, thereby effectively reducing the noise caused by the water flow drop.

[0068] In one embodiment, the surface of the noise reduction protrusion 21 is arc-shaped, which can further reduce the water flow impact noise.

[0069] In one embodiment, the noise reduction protrusion 21 is in the shape of a long strip, and the length of the noise reduction protrusion 21 is consistent with the length of the water outlet 16, or slightly smaller than the length of the water outlet 16, so as to effectively carry the water flow of the water outlet 16. The height of the noise reduction protrusion 21 is flush with the bottom surface of the water tank of the water outlet 16 or slightly lower than the bottom surface of the water tank of the water outlet 16, and needs to be located on the flow path of the water of the water outlet 16 to ensure the carrying and drainage effect of the noise reduction protrusion 21 on water.

[0070] In one embodiment, the bottom height of the first guide groove 7 decreases gradually along the direction approaching the water outlet 16 .

[0071] In this embodiment, the height of the first guide groove 7 decreases along the direction close to the water outlet 16, and a slope design can be formed to facilitate the timely discharge of water flowing down from the waterproof cap 2 and the second top cover 12 to avoid water accumulation and infiltration.

[0072] In one embodiment, the width of the first guide groove 7 decreases along the direction approaching the drain outlet 8 .

[0073] This design can improve the water flow collection efficiency and the drainage effect of the first guide groove 7.

[0074] In one embodiment, a fixing column 22 is provided on the side of the first top cover 11 facing the second top cover 12, a fixing hole 23 is provided on the side of the second top cover 12 facing the first top cover 11, and the fixing column 22 is inserted into the fixing hole 23; or, a fixing hole 23 is provided on the side of the first top cover 11 facing the second top cover 12, a fixing column 22 is provided on the side of the second top cover 12 facing the first top cover 11, and the fixing column 22 is inserted into the fixing hole 23.

[0075] In this embodiment, the first top cover 11 and the second top cover 12 are plugged in and matched with each other by using the fixing columns 22 and the fixing holes 23, which not only facilitates the guidance of the first cover plate 9 and the second cover plate 10 during splicing and improves the assembly efficiency between the first cover plate 9 and the second cover plate 10, but also can utilize the cooperation of the fixing columns 22 and the fixing holes 23 to achieve the plug-in fixation between the first cover plate 9 and the second cover plate 10, and effectively prevent the cover plates from being misaligned in assembly.

[0076] In one embodiment, the first cover plate 9 also includes a first side plate 24, the first top cover 11 is arranged on the top of the first side plate 24 and is fixedly connected to the first side plate 24, the second cover plate 10 also includes a second side plate 25, the second top cover 12 is arranged on the top of the second side plate 25 and is fixedly connected to the second side plate 25, and the first cover plate 9 and the second cover plate 10 enclose a motor mounting cavity 3.

[0077] In this embodiment, the first cover plate 9 includes a first top cover 11 and a first side plate 24 , the second cover plate 10 includes a second top cover 12 and a second side plate 25 , and the first cover plate 9 and the second cover plate 10 are directly spliced ​​and fixed to form the motor installation cavity 3 .

[0078] In one embodiment, the fixing holes 23 or fixing columns 22 on the first cover plate 9 can be set on the first top cover 11 and / or the first side plate 24, and the fixing holes 23 or fixing columns 22 on the second cover plate 10 can be set on the second top cover 12 and / or the second side plate 25.

[0079] According to an embodiment of the present invention, the motor assembly includes a motor waterproof structure and a motor 26 . The motor waterproof structure is the above-mentioned motor waterproof structure. The motor 26 is installed in the motor installation cavity 3 .

[0080] In this embodiment, the motor waterproof structure includes a protective cover plate 1 and a waterproof cap 2. The protective cover plate 1 wraps the motor 26 inside and does not run with the motor 26. It fixes the motor 26 and prevents water from directly contacting the motor 26. The waterproof cap 2 is installed on the motor shaft 6 and runs with the motor 26. It is used in conjunction with the protective cover plate 1 to axially seal the motor 26 to prevent water from falling from above from entering the interior of the motor 26 through the shaft hole 4.

[0081] In one embodiment, the motor 26 is disposed in the motor installation cavity 3 formed by the first cover plate 9 and the second cover plate 10, and is fixed to the protective cover plate by mutual embedding.

[0082] The assembly process of the motor assembly is as follows:

[0083] 1. Place the motor into the second cover plate and fix the motor using the rubber ring limit hole and shaft hole of the second cover plate.

[0084] 2. Install the first cover plate to cover the motor, and fix the motor by using corresponding features such as fixing columns and fixing holes on the first cover plate and the second cover plate.

[0085] 3. Install the waterproof cap on the motor shaft.

[0086] 4. Install the wind wheel and close the panel.

[0087] According to an embodiment of the present invention, the air conditioner includes a motor waterproof structure and a motor 26 . The motor waterproof structure is the above-mentioned motor waterproof structure. The motor 26 is installed in the motor installation cavity 3 .

[0088] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0089] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0090] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor waterproof structure, characterized in that: The invention comprises a protective cover plate (1) and a waterproof cap (2), wherein the protective cover plate (1) has a motor installation cavity (3), the waterproof cap (2) is arranged on the top of the protective cover plate (1) and can rotate relative to the protective cover plate (1), the top of the protective cover plate (1) is provided with an axial hole (4) and a rotation groove (5), the axial hole (4) is located on the inner circumference of the rotation groove (5), the waterproof cap (2) can be rotatably arranged in the rotation groove (5), the waterproof cap (2) is constructed to be sealed and connected with the motor shaft (6), and rotates with the motor shaft (6), and the water in the rotation groove (5) can be discharged through the surface of the protective cover plate (1) in a direction away from the axial hole (4).

2. The motor waterproof structure according to claim 1, characterized in that: A first guide groove (7) is provided on the top of the protective cover plate (1), a first end of the first guide groove (7) is connected to the rotating groove (5), and a drain outlet (8) is provided at the second end of the first guide groove (7); and / or a preset gap is provided between the bottom of the waterproof cap (2) and the bottom of the rotating groove (5), and a height of the bottom of the waterproof cap (2) is lower than a height of the top of the rotating groove (5).

3. The motor waterproof structure according to claim 1, characterized in that: The protective cover plate (1) comprises a first cover plate (9) and a second cover plate (10), the first cover plate (9) comprises a first top cover (11), the second cover plate (10) comprises a second top cover (12), the first top cover (11) is located below the second top cover (12), and the first top cover (11) is provided with a first water retaining side plate (13) at a side edge close to the second top cover (12), the first water retaining side plate (13) is located at a first edge of the second top cover (12) away from the first top cover (11) On one side, the first edge of the second top cover (12) is the edge of the second top cover (12) close to the first top cover (11), a first guide groove (7) is provided on the top of the first top cover (11), the height of the first water retaining side plate (13) is higher than the bottom height of the first guide groove (7), the rotating groove (5) is provided on the second top cover (12), the first end of the first guide groove (7) is located below the outlet of the rotating groove (5), and the second end of the first guide groove (7) is provided with a drainage outlet (8).

4. The motor waterproof structure according to claim 3, characterized in that: The second top cover (12) is provided with a second guide groove (14), the second guide groove (14) is connected with the rotating groove (5), a second water retaining side plate (15) is provided on the side of the second guide groove (14) close to the first top cover (11), a water outlet (16) and the rotating groove (5) are provided on the second water retaining side plate (15), the water outlet (16) is connected with the second guide groove (14), the water outlet (16) is located above the first guide groove (7), and guides water in the second guide groove (14) to the first guide groove (7).

5. The motor waterproof structure according to claim 4, characterized in that: The inner wall diameter a of the rotating groove (5) is smaller than the inner wall diameter d1 of the waterproof cap (2) and larger than the diameter of the shaft hole (4); the outer wall diameter b of the rotating groove (5) is larger than the outer wall diameter d2 of the waterproof cap (2).

6. The motor waterproof structure according to claim 4, characterized in that: The second water retaining side plate (15) is provided with an extension portion (17) at the rotating groove (5), the extension portion (17) protrudes laterally toward the first top cover (11), the rotating groove (5) passes through the extension portion (17), the first water retaining side plate (13) is provided with a first embedding groove (18) corresponding to the extension portion (17), the groove bottom height of the first embedding groove (18) is higher than the groove bottom height of the first guide groove (7), the extension portion (17) is embedded in the first embedding groove (18), and a sealing fit is formed between the first embedding groove (18).

7. The motor waterproof structure according to claim 4, characterized in that: The second water retaining side plate (15) is provided with a water guiding protrusion (19) protruding laterally toward the first top cover (11) at the water outlet (16); the water outlet (16) penetrates the water guiding protrusion (19) along the water outlet direction; the first water retaining side plate (13) is provided with a second embedding groove (20) corresponding to the water guiding protrusion (19); the groove bottom height of the second embedding groove (20) is higher than the groove bottom height of the first guide groove (7); the water guiding protrusion (19) is embedded in the second embedding groove (20) and forms a sealing fit with the second embedding groove (20).

8. The motor waterproof structure according to claim 4, characterized in that: The water outlet (16) is arranged on a side of the rotating groove (5) away from the axial hole (4), and the bottom surface heights of the rotating groove (5) and the second guide groove (14) decrease gradually along a direction approaching the water outlet (16).

9. The motor waterproof structure according to claim 4, characterized in that: The water outlet (16) is arranged on a side of the rotating groove (5) away from the axial hole (4); the outer wall of the rotating groove (5) located on the side of the axial hole (4) away from the water outlet (16) is flush with the first side wall of the first guide groove (7) or is located on the inner side of the first side wall; the outer wall of the water outlet (16) is flush with the second side wall of the first guide groove (7) or is located on the inner side of the second side wall.

10. The motor waterproof structure according to claim 4, characterized in that: A noise reduction protrusion (21) is arranged in the first guide groove (7), and the noise reduction protrusion (21) is arranged on the lower side of the water outlet (16) along the water outlet direction of the water outlet (16).

11. The motor waterproof structure according to any one of claims 4 to 10, characterized in that: The bottom surface height of the first guide groove (7) decreases gradually along the direction approaching the water outlet (16); and / or the width of the first guide groove (7) decreases gradually along the direction approaching the drain outlet (8).

12. The motor waterproof structure according to any one of claims 3 to 10, characterized in that: A fixing column (22) is provided on the side of the first top cover (11) facing the second top cover (12), a fixing hole (23) is provided on the side of the second top cover (12) facing the first top cover (11), and the fixing column (22) is inserted into the fixing hole (23); or, a fixing hole (23) is provided on the side of the first top cover (11) facing the second top cover (12), a fixing column (22) is provided on the side of the second top cover (12) facing the first top cover (11), and the fixing column (22) is inserted into the fixing hole (23).

13. The motor waterproof structure according to any one of claims 3 to 10, characterized in that: The first cover plate (9) further includes a first side plate (24), the first top cover (11) is arranged on the top of the first side plate (24) and is fixedly connected to the first side plate (24), the second cover plate (10) further includes a second side plate (25), the second top cover (12) is arranged on the top of the second side plate (25) and is fixedly connected to the second side plate (25), and the first cover plate (9) and the second cover plate (10) enclose the motor installation cavity (3).

14. A motor assembly, comprising a motor waterproof structure and a motor (26), characterized in that: The motor waterproof structure is the motor waterproof structure according to any one of claims 1 to 13, and the motor (26) is installed in the motor installation cavity (3).

15. An air conditioner, comprising a motor waterproof structure and a motor (26), characterized in that: The motor waterproof structure is the motor waterproof structure according to any one of claims 1 to 13, and the motor (26) is installed in the motor installation cavity (3).

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