Driving motor with heat dissipation, waterproof and dustproof structure
By adopting a combined structure of turbine and thermal conduction sleeve in the drive motor, the problems of heat generation and waterproofing and dustproofing of high-power motors are solved, and efficient heat dissipation and good waterproofing and dustproofing are achieved, extending the motor life and reducing costs.
Patent Information
- Application Number
- CN202411596805.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-01-14
AI Technical Summary
Existing motors are prone to overheating due to heating when operating at high power, which affects performance and life, and lacks effective waterproofing and dustproofing capabilities.
A drive motor structure including turbine, blades and thermal conduction sleeves is designed to achieve efficient suction and exhaust through the arrangement of blades on the turbine. Combined with the thermal conduction sleeve and sealing structure, it effectively dissipates heat and prevents water and dust from entering.
It achieves efficient heat dissipation, low cost and good waterproof and dustproof effects, extends the service life of the motor, and reduces manufacturing and operation and maintenance costs.
Smart Images
Figure CN119315749A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of motor products, and in particular relates to a driving motor with a heat dissipation, waterproof and dustproof structure. Background Art
[0002] Motors are one of the most commonly used components in industry, and the heating problem of motors is the most common problem of motors. The reason for the heating of motors is that the energy loss during operation is converted into heat internally. The insulation material of the stator winding has the worst heat resistance in the motor. When the motor temperature exceeds the maximum allowable temperature of the insulation material, the insulation material will age and become brittle, shortening the life of the motor. In severe cases, the insulation material will carbonize and deteriorate, resulting in the loss of insulation performance, which will cause the motor to burn out.
[0003] The commonly used heat dissipation method for motors is air cooling. This method dissipates the generated heat into the surrounding air through the heat sink on the surface of the driving motor, and uses the flow of air to reduce the temperature of the motor. Air cooling is simple in design and low in cost, and is suitable for some low-power, low-load drive motors. However, with the advancement of technology and the increase in demand, motors are moving towards higher power density, lower cost and higher efficiency. The motor has a large output torque and a large load, which makes its internal winding current large, and a large amount of heat is generated during operation. If it is not managed, the heat accumulation will cause the motor to overheat, which will affect the performance and life of the motor. In addition, the dust and water resistance level of the motor is also very important, so a motor heat dissipation structure with low cost, good heat dissipation effect, and outstanding dust and water resistance is very necessary. Summary of the invention
[0004] Purpose of the invention: The technical problem to be solved by the present invention is to provide a drive motor with a heat dissipation, waterproof and dustproof structure in view of the defects of the prior art. The drive motor has a simple structure, high heat dissipation efficiency, low manufacturing cost and good waterproof and dustproof effect.
[0005] Technical solution: In order to achieve the above-mentioned purpose, the present invention provides a driving motor with a heat dissipation, waterproof and dustproof structure, comprising a motor housing, a rotor assembly, a stator assembly, a main shaft and a turbine, wherein the rotor assembly and the stator assembly are installed in the motor housing, the main shaft is rotatably installed in the motor housing, and the turbine is arranged on the main shaft; The motor housing is provided with an air intake hole and an air exhaust hole, both of which are connected to the inside of the motor housing. The left and right sides of the turbine are provided with blades 1 and 2 respectively. The turbine is also provided with an air hole, and the directions of blade 1 and blade 2 are opposite. Blade 1 and blade 2 are located on the same side as the air intake hole, and blade 2 and the air exhaust hole are located on the same side. When the main shaft rotates, the turbine can be driven to rotate. When blade 1 on the turbine rotates, negative pressure can be generated in the right cavity of the motor housing. External cold air enters through the air intake hole, and the air is blown to the stator assembly by blade 2 through the air hole to take away the heat, and then discharged through the air hole.
[0006] Furthermore, the air intake hole and the air exhaust hole have the same structure, the air intake hole includes shaped holes on both sides and a radial hole in the middle, the shaped hole is connected to the radial hole, the shaped hole is an upward convex arc structure and the cross-sectional diameter is smaller than the radial hole in the middle. The shaped hole is in direct contact with the outside world, and the shape of the shaped hole can effectively prevent water and dust from entering the interior of the motor.
[0007] Furthermore, a heat-conducting sleeve is provided on the outer shell of the stator assembly, the stator assembly is interference-fitted with the motor outer shell, the rotor assembly is interference-fitted with the main shaft, and the main shaft is interference-fixedly connected with the turbine. The heat generated by the stator assembly is transferred to the heat-conducting sleeve and then taken away by air to achieve cooling.
[0008] Furthermore, it also includes a motor end cover, a motor driver end cover 1 and a motor driver end cover 2, wherein the motor end cover and the motor driver end cover 2 are arranged on both sides of the motor housing and a sealing gasket is arranged between the motor housing, the motor driver end cover 1 is arranged on the motor driver end cover 2 and a sealing gasket is arranged between the two, and the motor driver end cover 2 and the motor driver end cover 1 form a cavity, and the motor driver assembly is arranged in the cavity. The motor end cover, the motor driver end cover 1 and the motor driver end cover 2 are all provided with sealing gaskets at the installation positions, so that a relatively closed space is formed inside the motor, which can prevent water and dust from entering on the one hand, and on the other hand, it does not affect the wind path structure formed by the turbine inside.
[0009] Furthermore, the motor end cover and the motor driver end cover 2 are respectively provided with bearing 1 and bearing 2, and the main shaft rotates between bearing 1 and bearing 2.
[0010] Furthermore, a fin 1 is provided on the inner side of the motor housing, the fin 1 is evenly arranged in a whole circle, the inner diameter of the fin 1 is larger than the inner diameter of the contact surface between the motor housing and the stator assembly housing, the contact surface between the fin 1 and the stator assembly housing is provided with a transition smooth surface in the axial direction, and the radial hole of the exhaust hole passes through the axial middle position of the fin 1. The fin 1 is close to the stator assembly, and the exhaust hole directly passes through the fin 1, so that the heat can be effectively discharged.
[0011] Furthermore, the motor driver end cover 2 is provided with fin 2, and the fin 2 is arranged on the back of the motor driver assembly. The heat generated by the motor driver assembly is conducted out through the fin 2, and the heat is dissipated out of the motor through the circulating air intake and exhaust system.
[0012] Furthermore, it also includes a motor bracket, which is arranged outside the motor housing. The motor as a whole is fixedly installed through the motor bracket and the installation position.
[0013] It can be seen from the above technical solution that compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a driving motor with a heat dissipation, waterproof and dustproof structure, which has a simple structure and high heat dissipation efficiency. The two-stage blades arranged in positive and negative directions on the turbine realize efficient air intake and exhaust. A heat-conducting sleeve is provided on the outside of the stator assembly to directly contact the inner wall of the motor housing, and a full circle of heat dissipating fins is arranged not far from the axial spacing of the heat-conducting sleeve. The exhaust hole directly passes through the heat dissipating fins, so that the heat can be effectively discharged.
[0014] 2. The present invention also has the advantage of low manufacturing and use costs. The turbine is directly fixed on the main shaft and does not require an additional drive. The turbine can be made of injection molded parts, which greatly reduces the cost. In addition, the motor drive component does not need to dissipate heat separately. The heat is conducted out through fin 2 and dissipated out of the motor through a circulating air intake and exhaust system.
[0015] 3. In addition, it has good waterproof and dustproof effects. Sealing pads are set at the installation positions of the motor end cover, motor driver end cover 1 and motor driver end cover 2. The exhaust holes and air intake holes on the motor casing exchange gas with the outside world through a large number of special-shaped holes, which can effectively prevent the entry of water and dust. These holes are all smooth transition structures with low wind resistance and high overall circulation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of the structure of a drive motor with heat dissipation, waterproof and dustproof structure according to the present invention Figure 2 It is a schematic structural diagram of the turbine according to the present invention; Figure 3 It is a structural schematic diagram of the motor housing of the present invention; Figure 4 It is a structural schematic diagram of the motor driver end cover 2 of the present invention; Figure 5 This is an appearance diagram of a drive motor with heat dissipation, waterproof and dustproof structure described in the present invention.
[0017] In the figure: 1-motor housing, 11-intake hole, 111-special-shaped hole, 112-radial hole, 12-exhaust hole, 13-fin one, 2-rotor assembly, 3-stator assembly, 4-main shaft, 5-turbine, 51-blade one, 52-blade two, 6-motor end cover, 61-bearing one, 7-motor driver end cover one, 8-motor driver end cover two, 81-bearing two, 82-fin two, 9-motor driver assembly, 10-motor bracket. DETAILED DESCRIPTION
[0018] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.
[0019] Embodiment 1: like Figure 1 As shown, a driving motor with a heat dissipation, waterproof and dustproof structure includes a motor housing 1, a rotor assembly 2, a stator assembly 3, a main shaft 4 and a turbine 5. The rotor assembly 2 and the stator assembly 3 are installed in the motor housing 1, the main shaft 4 is rotatably installed in the motor housing 1, and the turbine 5 is arranged on the main shaft 4; The motor housing 1 is provided with an air intake hole 11 and an air exhaust hole 12, both of which are connected to the inside of the motor housing 1. The left and right sides of the turbine 5 are provided with blades 1 51 and 2 52, respectively. The turbine 5 is also provided with an air hole, and the directions of blades 1 51 and 2 52 are opposite. Blade 1 51 and blade 2 52 are located on the same side as the air intake hole 11, and blade 2 52 and exhaust hole 12 are located on the same side. In this embodiment, the motor housing 1 can be manufactured as a whole by additive manufacturing, or the exhaust holes 12 and the air intake holes 11 can be partially manufactured by additive manufacturing, and then fixed to the motor housing 1 by welding or assembly; the air intake holes 11 and the exhaust holes 12 can also be arranged in a whole circle, and their structural form and aperture size can also be adjusted.
[0020] like Figure 3 As shown, the air intake hole 11 and the air exhaust hole 12 have the same structure, the air intake hole 11 includes special-shaped holes 111 on both sides and a radial hole 112 in the middle, the special-shaped hole 111 is connected with the radial hole 112, the special-shaped hole 111 is an upward convex arc structure and the cross-sectional diameter is smaller than the radial hole 112 in the middle. In addition, in order to further play a dust-proof role, a dust cover can be installed at the position of the air intake hole 11 to further filter out dust in the air, and the positive pressure at the air exhaust hole can be installed as needed.
[0021] The outer shell of the stator assembly 3 is provided with a heat-conducting sleeve, the stator assembly 3 is interference-fitted with the motor housing 1, the rotor assembly 2 is interference-fitted with the main shaft 4, and the main shaft 4 is interference-fixedly connected with the turbine 5. The heat-conducting sleeve transfers part of the heat on the stator assembly to the motor housing 1 to directly exchange heat with the outside world, and the other part is directly taken away by the cold air inside and discharged from the exhaust hole.
[0022] In addition, Figure 1 and Figure 4 As shown, it also includes a motor end cover 6, a motor driver end cover 1 7 and a motor driver end cover 2 8. The motor end cover 6 and the motor driver end cover 2 8 are arranged on both sides of the motor housing 1 and a sealing gasket is provided between the motor housing 1. The motor driver end cover 1 7 is arranged on the motor driver end cover 2 8 and a sealing gasket is provided between the two. The motor driver end cover 2 8 and the motor driver end cover 1 7 form a cavity, and a motor driver assembly 9 is provided in the cavity.
[0023] Please continue to refer to Figure 1 The motor end cover 6 and the motor driver end cover 2 8 are provided with a bearing 1 61 and a bearing 2 81 respectively, and the main shaft 4 is rotatably arranged between the bearing 1 61 and the bearing 2 81. For better dustproof and waterproof effect, the installation position of the bearing 1 61 and the matching position of the bearing 1 61 and the main shaft 4 can also be waterproof and dustproof.
[0024] Embodiment 2: Based on the first embodiment, the inner side of the motor housing 1 in this embodiment is provided with a fin 13, the fin 13 is evenly arranged in a whole circle, the inner diameter of the fin 13 is larger than the inner diameter of the contact surface between the motor housing 1 and the stator assembly 3 housing, the contact surface between the fin 13 and the stator assembly 3 housing is provided with a transition smooth surface in the axial direction, and the radial hole 112 of the exhaust hole 12 passes through the axial middle position of the fin 13. The turbine 5 blows the inhaled cold air to the position of the stator assembly 3 through the blade 2 52, and the air after heat exchange passes through the fin 13 and is directly discharged from the exhaust hole 12, so that the heat can be effectively discharged to improve the heat dissipation efficiency.
[0025] like Figure 4 As shown, the motor driver end cover 8 is provided with a second fin 82, and the second fin 82 is arranged on the back of the motor driver assembly 9. The motor driver assembly 9 is on the back of the second fin 82, and the heat generated by the motor driver assembly 9 during operation is conducted through the second fin 82 and discharged through the exhaust hole 12, without adding a separate cooling element, saving manufacturing cost and use cost.
[0026] like Figure 1 , Figure 5 As shown, a motor bracket 10 is also included, and the motor bracket 10 is arranged on the outside of the motor housing 1.
[0027] The present invention proposes a drive motor structure with heat dissipation, waterproof and dustproof structure, which not only has high heat dissipation efficiency and can be applied to motors with higher power density, but also has good waterproof and dustproof effect, which increases the service life of the motor. Under the above two premises, the manufacturing cost, use and operation and maintenance cost of the motor provided by the present invention are reduced, bringing considerable economic benefits.
[0028] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.
Claims
1. A drive motor with heat dissipation, waterproof and dustproof structure, characterized in that: The invention comprises a motor housing (1), a rotor assembly (2), a stator assembly (3), a main shaft (4) and a turbine (5), wherein the rotor assembly (2) and the stator assembly (3) are mounted in the motor housing (1), the main shaft (4) is rotatably mounted in the motor housing (1), and the turbine (5) is arranged on the main shaft (4); The motor housing (1) is provided with an air intake hole (11) and an air exhaust hole (12), and the air intake hole (11) and the air exhaust hole (12) are both communicated with the interior of the motor housing (1). The left and right sides of the turbine (5) are respectively provided with a blade 1 (51) and a blade 2 (52). The turbine (5) is also provided with an air hole, and the directions of the blade 1 (51) and the blade 2 (52) are opposite. The blade 1 (51) and the air intake hole (11) are located on the same side, and the blade 2 (52) and the air exhaust hole (12) are located on the same side.
2. The driving motor with heat dissipation, waterproof and dustproof structure according to claim 1, characterized in that: The air intake hole (11) and the air exhaust hole (12) have the same structure. The air intake hole (11) comprises special-shaped holes (111) on both sides and a radial hole (112) in the middle. The special-shaped hole (111) is connected to the radial hole (112). The special-shaped hole (111) is in an upwardly convex arc structure and has a smaller cross-sectional diameter than the radial hole (112) in the middle.
3. The driving motor with heat dissipation, waterproof and dustproof structure according to claim 2, characterized in that: A heat-conducting sleeve is provided on the outer shell of the stator assembly (3); the stator assembly (3) and the motor outer shell (1) are interference-fitted; the rotor assembly (2) and the main shaft (4) are interference-fitted; and the main shaft (4) and the turbine (5) are interference-fixedly connected.
4. The driving motor with heat dissipation, waterproof and dustproof structure according to claim 3, characterized in that: The motor drive device further comprises a motor end cover (6), a motor driver end cover 1 (7) and a motor driver end cover 2 (8), wherein the motor end cover (6) and the motor driver end cover 2 (8) are arranged on both sides of the motor housing (1) and a sealing gasket is arranged between the motor housing (1); the motor driver end cover 1 (7) is arranged on the motor driver end cover 2 (8) and a sealing gasket is arranged between the two; the motor driver end cover 2 (8) and the motor driver end cover 1 (7) form a cavity, and a motor driver assembly (9) is arranged in the cavity.
5. The driving motor with heat dissipation, waterproof and dustproof structure according to claim 4, characterized in that: The motor end cover (6) and the motor driver end cover (8) are respectively provided with a first bearing (61) and a second bearing (81), and the main shaft (4) is rotatably arranged between the first bearing (61) and the second bearing (81).
6. The driving motor with heat dissipation, waterproof and dustproof structure according to claim 5, characterized in that: A fin 1 (13) is provided on the inner side of the motor housing (1), and the fin 1 (13) is evenly arranged in a whole circle. The inner diameter of the fin 1 (13) is larger than the inner diameter of the contact surface between the motor housing (1) and the outer shell of the stator assembly (3). The contact surface between the fin 1 (13) and the outer shell of the stator assembly (3) is provided with a transition smooth surface in the axial direction, and the radial hole (112) of the exhaust hole (12) passes through the axial middle position of the fin 1 (13).
7. The driving motor with heat dissipation, waterproof and dustproof structure according to claim 6, characterized in that: The motor driver end cover 2 (8) is provided with fin 2 (82), and the fin 2 (82) is arranged on the back side of the motor driver assembly (9).
8. The driving motor with heat dissipation, waterproof and dustproof structure according to claim 1, characterized in that: It also comprises a motor bracket (10), wherein the motor bracket (10) is arranged on the outside of the motor housing (1).