Motor with heat pipe integrated arc-shaped radiating fins

Abstract

The invention discloses a motor with heat pipe integrated arc-shaped radiating fins, and relates to the technical field of motors. In order to solve the problems that in the long-time operation process of an existing motor, due to the fact that internal assemblies such as a winding and an iron core generate a large amount of heat, straight-strip-shaped or blade-shaped cooling fins are adopted, the cooling effect is poor, the motor is overheated, and then the driving efficiency of the motor is reduced. A plurality of arc-shaped heat dissipation fins are evenly arranged on the outer surface of a shell in the circumferential direction, each arc-shaped heat dissipation fin comprises a channel, an evaporation section and a condensation section, the condensation section is in an arc shape, the evaporation section and the condensation section are connected end to end, the channels are machined in the evaporation section and the condensation section in the length direction, the surface area is increased through the arc-shaped heat dissipation fins, and the heat dissipation efficiency is improved. The air flow path is optimized, the heat pipes are arranged in the channels in the arc-shaped heat dissipation fins, heat on the surface of the shell is better transmitted to the outer sides of the fins through the heat pipes, heat transmission is accelerated, and the temperature rise of the motor during working is effectively reduced. The invention is suitable for the field of motor heat dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a motor with heat pipe integrated arc-shaped heat dissipation fins. Background Art

[0002] Traditional asynchronous motors are difficult to meet current needs due to their large size, low efficiency, and low power factor. In order to meet these standards, motors are developing towards high precision, high power density, miniaturization, lightweight, and electromechanical integration. However, this has also led to a sharp increase in the heat inside the motor and a serious lack of heat dissipation space. These problems have become the main obstacles to the further development of motors. The temperature rise of the motor will directly determine its reliability and safety performance, and may even cause the motor to fail and shut down. If the temperature inside the motor is too high, it will not only reduce the service life of the insulation material and reduce the operating efficiency of the motor, but also form a vicious circle. This will further increase the heat generated by the motor, which will have a serious impact on the life and safety of the motor.

[0003] During long-term operation, existing motors generate a lot of heat due to internal components such as windings and iron cores. The use of straight or blade-shaped heat sinks has poor heat dissipation effect, which causes the motor to overheat and further leads to a decrease in motor drive efficiency. Summary of the invention

[0004] The present invention aims to solve the problem that in the long-term operation of existing motors, a large amount of heat is generated by internal components such as windings and iron cores, and straight strip or blade-shaped heat sinks are used, but the heat dissipation effect is poor, which leads to overheating of the motor and further causes a decrease in the motor driving efficiency. A motor with a heat pipe integrated arc heat dissipation fin is proposed.

[0005] The motor with heat pipe integrated arc-shaped heat dissipation fins of the present invention comprises a housing 1, arc-shaped heat dissipation fins 2, a base 3, a top cover 4, fan blades 5, a wind shield 6, a rotor 7 and a stator 8;

[0006] A rotor 7 and a stator 8 are provided inside the housing 1, and the stator 8 is sleeved on the rotor 7. A top cover 4 is provided at the top end of the outer surface of the housing 1, and a base 3 is provided at the bottom end of the outer surface of the housing 1. A fan blade 5 is provided at the end of the rotor 7. A wind shield 6 is provided at one end of the housing 1, and the fan blade 5 is arranged inside the wind shield 6. A plurality of arc-shaped heat dissipation fins 2 are evenly provided on the outer surface of the housing 1 along the circumferential direction.

[0007] Furthermore, the arc-shaped heat dissipation fin 2 includes a groove 2-1, an evaporation section 2-2 and a condensation section 2-3, the condensation section 2-3 is arc-shaped, and the evaporation section 2-2 and the condensation section 2-3 are connected end to end, and the evaporation section 2-2 and the condensation section 2-3 are respectively processed with grooves 2-1 along the length direction;

[0008] Furthermore, the arc radius a of the cross section of the condensing section 2-3 of the arc-shaped heat dissipating fin 2 is, a=L*4 / 5, L is the total length of the arc-shaped heat dissipating fin 2;

[0009] Furthermore, the height h of the arc-shaped heat dissipation fins 2 is h=L / 10;

[0010] Furthermore, the thickness d of the arc-shaped heat dissipation fin 2 is 0.5 mm ≤ d ≤ 1 mm;

[0011] Furthermore, the round angle θ of the condensing section 2 - 3 of the arc-shaped heat dissipation fin 2 is 45°≤θ≤90°;

[0012] Furthermore, the material of the arc-shaped heat dissipation fins 2 is 6061 aluminum alloy or A356 aluminum alloy;

[0013] Furthermore, the distance between the center lines of every two arc-shaped heat dissipation fins 2 on the housing 1 is equal to five times the thickness of the arc-shaped heat dissipation fins 2;

[0014] Furthermore, when in use, a plurality of arc-shaped heat dissipating fins 2 are uniformly provided along the circumferential direction on the outer surface of the shell 1, and the arc-shaped heat dissipating fins 2 include a groove 2-1, an evaporating section 2-2 and a condensing section 2-3, the condensing section 2-3 is arc-shaped, and the evaporating section 2-2 and the condensing section 2-3 are connected end to end, and the inside of the evaporating section 2-2 and the condensing section 2-3 are respectively processed with grooves 2-1 along the length direction; a heat pipe is placed inside the groove 2-1 of the arc-shaped heat dissipating fin 2, and the heat pipe is fixed in the groove by a thermal conductive gel, and the evaporating end 2-2 is located adjacent to the arc-shaped heat dissipating fin 2. 2, absorbs heat from the shell 1, and the working medium in the evaporation section 2-2 absorbs heat and then evaporates and changes phase, and conducts heat to the condensation section 2-3. The condensation section 2-3 is located at the outer end of the arc-shaped fins for heat exchange. The remaining surfaces of the heat-conducting fins are coated with graphite to facilitate heat dissipation. Each arc-shaped heat dissipation fin is integrally formed with the motor housing or fixed by welding or other methods; the end of the rotor 7 is provided with a fan blade 5 for air cooling and heat dissipation. The diameter and speed of the fan blade 5 are selected according to the CFD simulation optimization results to ensure that the airflow evenly covers all the heat dissipation fins and improve the heat dissipation efficiency. A guide wind shield is arranged between the front end of the fan blade 5 and the shell 1. The guide wind shield adopts an arc-shaped inner wall, and the size of the front end opening is 75% to 85% of the diameter of the fan blade. The larger opening increases the air intake, guides the airflow to flow in an orderly manner along the surface of the fins, reduces turbulence, and further optimizes the heat dissipation effect; a top cover 4 is arranged above the shell 1, and the top cover 4 is set as a chamfered structure around it, which is conducive to gas circulation and increases the heat dissipation capacity of the upper end of the motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention overcomes the shortcomings of the prior art. The outer surface of the shell is evenly provided with a plurality of arc-shaped heat dissipation fins along the circumferential direction. The arc-shaped heat dissipation fins include grooves, an evaporation section, and a condensation section. The condensation section is in an arc shape, and the evaporation section and the condensation section are connected end to end. The evaporation section and the condensation section are respectively processed with grooves along the length direction. The arc-shaped heat dissipation fins increase the contact area with the air and enhance air convection. Due to their special geometric shape, the air flow path is extended to take away more heat. Heat pipes are arranged in the internal grooves of the arc-shaped heat dissipation fins. The heat pipes have efficient heat transfer performance, and their thermal conductivity is much higher than that of traditional heat dissipation materials. The heat pipes transfer the heat from the shell surface to the outside of the fins better, which speeds up the heat transfer, effectively reduces the temperature rise of the motor during operation, reduces the thermal stress and deformation caused by uneven temperature inside the motor, and improves the service life and stability of the motor.

[0017] Reduced wind resistance: Compared with traditional heat sinks, the curved design reduces the resistance of airflow while maintaining a high surface area, thus reducing energy consumption;

[0018] Compact structure: The arc-shaped heat dissipation fins can better adapt to limited space, making the motor design more compact and suitable for space-constrained application scenarios; the optimized heat dissipation design improves the heat dissipation effect of the motor itself, helps to extend the motor life, reduce failures caused by overheating, and improve the motor drive efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of a motor with heat pipe integrated arc-shaped heat dissipation fins according to the present invention;

[0020] Figure 2 It is a three-dimensional side-section stereoscopic schematic diagram of a motor with heat pipe integrated arc-shaped heat dissipation fins according to the present invention;

[0021] Figure 3 It is a front view of the arc-shaped heat dissipation fins in the motor with heat pipe integrated arc-shaped heat dissipation fins according to the present invention;

[0022] Figure 4 It is a three-dimensional schematic diagram of the arc-shaped heat dissipation fins in a motor with heat pipe integrated arc-shaped heat dissipation fins according to the present invention;

[0023] Figure 5 It is a main cross-sectional view of the arc-shaped heat dissipation fins in a motor with heat pipe integrated arc-shaped heat dissipation fins described in the present invention. DETAILED DESCRIPTION

[0024] Specific implementation method 1: Combination Figure 1 and Figure 2The present embodiment is described. The motor with heat pipe integrated arc-shaped heat dissipation fins described in the present embodiment comprises a housing 1, arc-shaped heat dissipation fins 2, a base 3, a top cover 4, fan blades 5, a wind shield 6, a rotor 7 and a stator 8;

[0025] A rotor 7 and a stator 8 are provided inside the housing 1, and the stator 8 is sleeved on the rotor 7. A top cover 4 is provided at the top end of the outer surface of the housing 1, and a base 3 is provided at the bottom end of the outer surface of the housing 1. A fan blade 5 is provided at the end of the rotor 7. A wind shield 6 is provided at one end of the housing 1, and the fan blade 5 is arranged inside the wind shield 6. A plurality of arc-shaped heat dissipation fins 2 are evenly provided on the outer surface of the housing 1 along the circumferential direction.

[0026] In this specific embodiment, when in use, the outer surface of the shell 1 is uniformly provided with a plurality of arc-shaped heat dissipation fins 2 along the circumferential direction, and the arc-shaped heat dissipation fins 2 include a groove 2-1, an evaporation section 2-2 and a condensation section 2-3, the condensation section 2-3 is arc-shaped, and the evaporation section 2-2 and the condensation section 2-3 are connected end to end, and the evaporation section 2-2 and the condensation section 2-3 are respectively processed with grooves 2-1 along the length direction; a heat pipe is placed inside the groove 2-1 of the arc-shaped heat dissipation fin 2, and the heat pipe is fixed in the groove by a thermal conductive gel, and the evaporation end 2-2 is located at the arc-shaped heat dissipation fin 2. The bottom end of the sheet 2 absorbs heat from the shell 1. The working medium in the evaporation section 2-2 absorbs heat and then evaporates and changes phase, and conducts heat to the condensation section 2-3. The condensation section 2-3 is located at the outer end of the arc-shaped fins for heat exchange. The remaining surfaces of the heat-conducting fins are coated with graphite to facilitate heat dissipation. Each arc-shaped heat dissipation fin is integrally formed with the motor housing or fixed by welding or other methods; the end of the rotor 7 is provided with a fan blade 5 for air cooling and heat dissipation. The diameter and speed of the fan blade 5 are selected according to the CFD simulation optimization results to ensure that the airflow evenly covers all the heat dissipation fins and improve the heat dissipation efficiency. A guide wind shield is arranged between the front end of the fan blade 5 and the shell 1. The guide wind shield adopts an arc-shaped inner wall. The size of the front opening is 75% to 85% of the diameter of the fan blade. The larger opening increases the air intake, guides the airflow to flow in an orderly manner along the surface of the fins, reduces turbulence, and further optimizes the heat dissipation effect; a top cover 4 is arranged above the shell 1, and the top cover 4 is set as a chamfered structure around it, which is conducive to gas circulation and increases the heat dissipation capacity of the upper end of the motor.

[0027] Specific implementation method 2: Combination Figure 1 and Figure 2 The present embodiment is described as a further limitation of the motor described in the first embodiment. The present embodiment describes a motor with a heat pipe integrated arc-shaped heat dissipation fin. The arc-shaped heat dissipation fin 2 includes a groove 2-1, an evaporation section 2-2 and a condensation section 2-3. The condensation section 2-3 is arc-shaped, and the evaporation section 2-2 and the condensation section 2-3 are connected end to end. The evaporation section 2-2 and the condensation section 2-3 are respectively provided with grooves 2-1 along the length direction.

[0028] Specific implementation method three: Combination Figure 1 and Figure 2 To explain this embodiment, this embodiment is a further limitation of the motor described in the second specific embodiment. This embodiment describes a motor with heat pipe integrated arc cooling fins, and the arc radius a of the cross-section of the condensing section 2-3 of the arc cooling fin 2 is, a=L*4 / 5, and L is the total length of the arc cooling fin 2.

[0029] Specific implementation method four: Combination Figure 1 and Figure 2 This embodiment is described as a further limitation of the motor described in the third embodiment. This embodiment describes a motor with heat pipe integrated arc-shaped heat dissipating fins, wherein the arc-shaped heat dissipating fins 2 have a height h, where h=L / 10.

[0030] Specific implementation method five: Combination Figure 1 and Figure 2 This embodiment is described as a further limitation of the motor described in the fourth embodiment. This embodiment describes a motor with heat pipe integrated arc-shaped heat dissipating fins, and the thickness d of the arc-shaped heat dissipating fins 2 is 0.5mm≤d≤1mm.

[0031] Specific implementation method six: Combination Figure 1 and Figure 2 To explain this embodiment, this embodiment is a further limitation of the motor described in the specific embodiment five. This embodiment describes a motor with heat pipe integrated arc-shaped heat dissipation fins, and the circular angle θ of the condensation section 2-3 of the arc-shaped heat dissipation fin 2 is 45°≤θ≤90°.

[0032] Specific implementation method seven: Combination Figure 1 and Figure 2 This embodiment is described as a further limitation of the motor described in the sixth embodiment. This embodiment describes a motor with heat pipe integrated arc-shaped heat dissipation fins, wherein the material of the arc-shaped heat dissipation fins 2 is 6061 aluminum alloy or A356 aluminum alloy.

[0033] Specific implementation method eight: Combination Figure 1 and Figure 2 This embodiment is described. This embodiment is a further limitation of the motor described in the first embodiment. In the motor with heat pipe integrated arc-shaped heat dissipation fins described in this embodiment, the distance between the center lines of every two arc-shaped heat dissipation fins 2 on the housing 1 is equal to five times the thickness of the arc-shaped heat dissipation fins 2;

[0034] In this specific embodiment, the distance between the center lines of every two arc-shaped heat dissipation fins 2 on the housing 1 is equal to five times the thickness of the arc-shaped heat dissipation fins 2 to ensure smooth passage of airflow and maximize the heat dissipation surface area of ​​the motor.

[0035] How it works

[0036] When in use, a plurality of arc-shaped heat dissipation fins 2 are uniformly arranged along the circumferential direction on the outer surface of the shell 1, and the arc-shaped heat dissipation fins 2 include a groove 2-1, an evaporation section 2-2 and a condensation section 2-3, the condensation section 2-3 is arc-shaped, and the evaporation section 2-2 and the condensation section 2-3 are connected end to end, and the evaporation section 2-2 and the condensation section 2-3 are respectively processed with grooves 2-1 along the length direction; a heat pipe is placed inside the groove 2-1 of the arc-shaped heat dissipation fin 2, and the heat pipe is fixed in the groove by a thermal conductive gel, and the evaporation end 2-2 is located at the bottom of the arc-shaped heat dissipation fin 2 The end of the rotor 7 absorbs heat from the shell 1. The working medium in the evaporation section 2-2 absorbs heat and then evaporates and changes phase, and conducts heat to the condensation section 2-3. The condensation section 2-3 is located at the outer end of the arc fins for heat exchange. The remaining surfaces of the heat-conducting fins are coated with graphite to facilitate heat dissipation. Each arc-shaped heat dissipation fin is integrally formed with the motor housing or fixed by welding or other methods; the end of the rotor 7 is provided with a fan blade 5 for air cooling and heat dissipation. The diameter and speed of the fan blade 5 are selected according to the CFD simulation optimization results to ensure that the airflow evenly covers all the heat dissipation fins and improve the heat dissipation efficiency. A guide wind shield is arranged between the front end of the fan blade 5 and the shell 1. The guide wind shield adopts an arc-shaped inner wall. The size of the front opening is 75% to 85% of the diameter of the fan blade. The larger opening increases the air intake, guides the airflow to flow in an orderly manner along the surface of the fins, reduces turbulence, and further optimizes the heat dissipation effect; a top cover 4 is arranged above the shell 1, and the top cover 4 is set as a chamfered structure around it, which is conducive to gas circulation and increases the heat dissipation capacity of the upper end of the motor.

Claims

1. A motor with heat pipe integrated arc-shaped heat dissipation fins, characterized in that: It comprises a shell (1), arc-shaped heat dissipation ribs (2), a base (3), a top cover (4), fan blades (5), a wind shield (6), a rotor (7) and a stator (8); A rotor (7) and a stator (8) are provided inside the housing (1), and the stator (8) is sleeved on the rotor (7); a top cover (4) is provided at the top end of the outer surface of the housing (1), and a base (3) is provided at the bottom end of the outer surface of the housing (1); fan blades (5) are provided at the end of the rotor (7); a wind shield (6) is provided at one end of the housing (1), and the fan blades (5) are arranged inside the wind shield (6); and a plurality of arc-shaped heat dissipation ribs (2) are evenly provided on the outer surface of the housing (1) along the circumferential direction.

2. The motor with heat pipe integrated arc-shaped heat dissipation fins according to claim 1, characterized in that: The arc-shaped heat dissipation fin (2) comprises a groove (2-1), an evaporation section (2-2) and a condensation section (2-3); the condensation section (2-3) is arc-shaped, and the evaporation section (2-2) and the condensation section (2-3) are connected end to end; the evaporation section (2-2) and the condensation section (2-3) are respectively machined with grooves (2-1) inside along the length direction.

3. The motor with heat pipe integrated arc-shaped heat dissipation fins according to claim 2, characterized in that: The cross-sectional arc radius a of the condensing section (2-3) of the arc-shaped heat dissipation fin (2) is, a=L*4 / 5, and L is the total length of the arc-shaped heat dissipation fin (2).

4. The motor with heat pipe integrated arc-shaped heat dissipation fins according to claim 3, characterized in that: The height h of the arc-shaped heat dissipation fins (2) is h=L / 10.

5. The motor with heat pipe integrated arc-shaped heat dissipation fins according to claim 4, characterized in that: The thickness d of the arc-shaped heat dissipation fins (2) is 0.5 mm ≤ d ≤ 1 mm.

6. The motor with heat pipe integrated arc-shaped heat dissipation fins according to claim 5, characterized in that: The rounded angle θ of the condensation section (2-3) of the arc-shaped heat dissipation fin (2) is 45°≤θ≤90°.

7. The motor with heat pipe integrated arc-shaped heat dissipation fins according to claim 6, characterized in that: The material of the arc-shaped heat dissipation ribs (2) is 6061 aluminum alloy or A356 aluminum alloy.

8. The motor with heat pipe integrated arc-shaped heat dissipation fins according to claim 1, characterized in that: The distance between the center lines of every two arc-shaped heat dissipation fins (2) on the housing (1) is equal to five times the thickness of the arc-shaped heat dissipation fins (2).

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