Efficient heat conduction and heat dissipation mechanism for three-phase asynchronous motor
By designing the coolant chamber and fan system in a three-phase asynchronous motor, the circulating flow of the coolant and the fan drive the air flow, the problem of difficulty in heat dissipating the rotor is solved, and the heat dissipation efficiency and thermal conductivity of the motor are significantly improved.
Patent Information
- Application Number
- CN202420450802.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-08
AI Technical Summary
During operation of a three-phase asynchronous motor, the rotor generates heat and is difficult to dissipate heat, resulting in low overall heat dissipation efficiency.
An efficient heat conduction and heat dissipation mechanism is designed, including a coolant chamber, WPY350 ultra-micro water pump, drain pipe, heat dissipation pipe and fan. The air flow is driven by the fan to blow the heat dissipation pipe, and the effective transfer of heat and Heat dissipation.
It improves the heat dissipation efficiency of the rotor and the overall motor, enhances the heat conduction and heat dissipation ability, and reduces the wear of the rotor and coolant chamber.
Smart Images
Figure CN222147340U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat conduction and heat dissipation mechanisms of motors, in particular to a high-efficiency heat conduction and heat dissipation mechanism for three-phase asynchronous motors. Background Art
[0002] The three-phase asynchronous motor consists of a rotor part and a stator part. When the three-phase AC power supply is passed into the stator winding of the three-phase asynchronous motor, the generated electromagnetic field appears a rotating magnetic field along the stator core. When the motor rotor rotates along the rotating magnetic field, the rotating magnetic field will cause an induced current in the rotor core, generating a reverse magnetic field, so that the rotor rotates with the rotating magnetic field. An output shaft is provided on one side of the rotor, and the output shaft rotates with the rotor to convert electrical energy into mechanical energy. The three-phase asynchronous motor has the advantages of simple structure and high reliability.
[0003] In the prior art, a fan shaft is usually provided at the end of the rotor away from the output shaft, and a fan is fixed on the fan shaft to blow air toward the stator to accelerate the heat dissipation of the stator.
[0004] However, during the operation of the three-phase asynchronous motor, the rotor also generates heat. Since the rotor is wrapped by the stator and the front and rear covers, it is difficult for the three-phase asynchronous motor in the prior art to dissipate heat for the rotor, which results in the need to improve the heat dissipation efficiency of the entire three-phase asynchronous motor. Utility Model Content
[0005] The purpose of the utility model is to provide a high-efficiency heat conduction and heat dissipation mechanism for a three-phase asynchronous motor to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency heat-conducting and heat-dissipating mechanism for a three-phase asynchronous motor, comprising: a cooling liquid tank, the cooling liquid tank is fixed on the surface of the rear end cover, the other end of the cooling liquid tank is against the surface of the rotor, a WPY350 ultra-micro water pump is arranged in the cooling liquid tank, one end of the WPY350 ultra-micro water pump is connected to a drain pipe, the other end of the drain pipe is connected to a heat dissipation pipe, the other end of the heat dissipation pipe is connected to a return pipe, the other end of the return pipe is connected to the other end of the cooling liquid tank, a fan shaft is arranged on the surface of the rotor, and a fan is fixed to the other end of the fan shaft.
[0007] Preferably, an axial hole is opened on the surface of the rear end cover, a bearing is arranged in the axial hole of the rear end cover, and the bearing sleeve is arranged on the surface of the fan shaft.
[0008] Preferably, the liquid discharge pipe and the liquid return pipe are both plugged into the surface of the rear end cover.
[0009] Preferably, the rotor is rotatably connected to the stator, and the rear end cover is fixed on the surface of the stator.
[0010] Preferably, lubricating oil is applied between the rotor and the coolant tank.
[0011] Preferably, a wind shield is fixed on the surface of the stator, an air inlet hole is formed at one end of the wind shield away from the stator, and an air outlet is formed on the side of the wind shield.
[0012] Preferably, a plurality of groups of fins are provided on the surface of the heat dissipation pipe.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model discloses a high-efficiency heat conduction and heat dissipation mechanism for a three-phase asynchronous motor. The heat emitted by the rotor is transferred to a cooling liquid tank. Coolant flows in the cooling liquid tank. The cooling liquid in the cooling liquid tank is pumped into a discharge pipe by a WPY350 ultra-micro water pump, flows into the heat dissipation pipe from the discharge pipe, and flows back to the cooling liquid tank from the return pipe at the other end of the heat dissipation pipe to form a circulation. The circulating flow of the cooling liquid enables the temperature of the surface of the cooling liquid tank to pass through the rear end cover and be transferred to the heat dissipation pipe. At the same time, when the rotor rotates again, the fan is driven to rotate together through the fan shaft. The rotation of the fan enables the air outside the wind cover to be sucked into the wind cover from the air inlet hole to generate airflow. The airflow blows on the surface of the heat dissipation pipe, takes away the heat from the heat dissipation pipe, and then dissipates it to the outside of the wind cover from the air outlet. This accelerates the heat dissipation of the heat dissipation pipe, thereby accelerating the heat dissipation of the cooling liquid tank, and further accelerating the efficiency of the heat conduction from the rotor surface to the cooling liquid tank, thereby achieving the effect of heat dissipation for the rotor, and also enhancing the heat conduction and heat dissipation efficiency of the three-phase asynchronous motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the rear end structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;
[0018] Figure 4 for Figure 3 A schematic diagram of the enlarged structure in the middle.
[0019] In the figure: stator 1, wind cover 2, air inlet 3, air outlet 4, rotor 5, rear end cover 6, fan shaft 7, fan 8, coolant tank 9, WPY350 ultra-micro water pump 10, drain pipe 11, heat dissipation pipe 12, return pipe 13, fin 14. DETAILED DESCRIPTION
[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] Embodiment 1
[0022] See also Figures 1 to 4 The utility model provides a technical solution: a high-efficiency heat conduction and heat dissipation mechanism for a three-phase asynchronous motor, comprising: a cooling liquid tank 9, the cooling liquid tank 9 is fixed on the surface of the rear end cover 6, the other end of the cooling liquid tank 9 is against the surface of the rotor 5, a WPY350350 type ultra-micro small water pump 10 is arranged in the cooling liquid tank 9, one end of the WPY350350 type ultra-micro small water pump 10 is connected to a drain pipe 11, the other end of the drain pipe 11 is connected to a heat dissipation pipe 12, the other end of the heat dissipation pipe 12 is connected to a return pipe 13, the other end of the return pipe 13 is connected to a return pipe 13, and the other end of the return pipe 13 is connected to a return pipe 13. The end is connected to the other end of the coolant tank 9, a fan shaft 7 is arranged on the surface of the rotor 5, a fan 8 is fixed to the other end of the fan shaft 7, an axial hole is opened on the surface of the rear end cover 6, a bearing is arranged in the axial hole of the rear end cover 6, the bearing sleeve is arranged on the surface of the fan shaft 7, a discharge pipe 11 and a return pipe 13 are both inserted on the surface of the rear end cover 6, the rotor 5 is rotatably connected to the stator 1, the rear end cover 6 is fixed on the surface of the stator 1, a wind cover 2 is fixed on the surface of the stator 1, an air inlet hole 3 is opened at the end of the wind cover 2 away from the stator 1, and an air outlet 4 is opened on the side of the wind cover 2.
[0023] In actual use, when the stator 1 is powered on, the rotor 5 will rotate at high speed under the action of the magnetic field. During the rotation process, the heat generated by the rotor 5 is transferred to the cooling liquid tank 9. The cooling liquid flows in the cooling liquid tank 9. The cooling liquid in the cooling liquid tank 9 is pumped into the discharge pipe 11 by the WPY350350 ultra-micro water pump 10, and then flows from the discharge pipe 11 into the heat dissipation pipe 12, and then flows back to the cooling liquid tank 9 from the return pipe 13 at the other end of the heat dissipation pipe 12, forming a circulation. The circulating flow of the coolant makes the temperature of the surface of the cooling liquid tank 9 pass through the rear end cover 6 and be transferred to the heat dissipation pipe 12. At the same time, When the rotor 5 rotates again, the fan 8 will be driven to rotate together through the fan shaft 7. The rotation of the fan 8 causes the air outside the hood 2 to be sucked into the hood 2 from the air inlet 3 to generate airflow. The airflow blows on the surface of the heat dissipation pipe 12, takes away the heat of the heat dissipation pipe 12 and then dissipates it to the outside of the hood 2 from the air outlet 4, which accelerates the heat dissipation of the heat dissipation pipe 12, and then accelerates the heat dissipation of the coolant tank 9, and further accelerates the efficiency of heat conduction from the surface of the rotor 5 to the coolant tank 9, thereby achieving the effect of cooling the rotor 5, and also enhancing the heat conduction and heat dissipation efficiency of the three-phase asynchronous motor.
[0024] Embodiment 2
[0025] On the basis of the first embodiment, in order to further enhance the heat dissipation efficiency of the heat dissipation pipe 12 , a plurality of groups of fins 14 are sleeved on the surface of the heat dissipation pipe 12 .
[0026] A plurality of groups of fins 14 are sleeved on the surface of the heat dissipation pipe 12 , so that the heat dissipation area of the heat dissipation pipe 12 is greatly increased, thereby further enhancing the heat dissipation efficiency of the heat dissipation pipe 12 .
[0027] Embodiment 3
[0028] On the basis of the second embodiment, in order to reduce the wear between the rotor 5 and the coolant tank 9 , lubricating oil is applied between the rotor 5 and the coolant tank 9 .
[0029] Because the rotor 5 rotates at high speed during operation, lubricating oil is applied between the rotor 5 and the coolant tank 9. When the rotor 5 rotates, the lubricating oil forms a uniform oil film between the rotor 5 and the coolant tank 9, thereby reducing the wear between the rotor 5 and the coolant tank 9.
[0030] In actual use, when the stator 1 is energized, the rotor 5 will rotate at high speed under the action of the magnetic field. During the rotation process, the heat generated by the rotor 5 is transferred to the coolant tank 9. Coolant flows in the coolant tank 9. The coolant in the coolant tank 9 is pumped into the discharge pipe 11 by the WPY350350 ultra-micro water pump 10, and then flows into the heat dissipation pipe 12 from the discharge pipe 11, and then flows back to the coolant tank 9 from the return pipe 13 at the other end of the heat dissipation pipe 12 to form a circulation. The circulating flow of the coolant makes the temperature of the surface of the coolant tank 9 pass through the rear end cover 6 and be transferred to the heat dissipation pipe 12. At the same time, when the rotor 5 rotates again, it will drive the fan 8 to rotate together through the fan shaft 7. The rotation of the fan 8 makes the air outside the wind cover 2 be sucked into the wind cover 2 from the air inlet hole 3 to generate airflow. The airflow blows on the surface of the heat dissipation pipe 12 to dissipate the heat. After the heat of the heat pipe 12 is taken away, it is dissipated from the air outlet 4 to the outside of the wind cover 2, which accelerates the heat dissipation of the heat pipe 12, and then accelerates the heat dissipation of the coolant tank 9, and further accelerates the efficiency of heat transfer from the surface of the rotor 5 to the coolant tank 9, thereby achieving the effect of heat dissipation for the rotor 5, and also enhancing the heat conduction and heat dissipation efficiency of the three-phase asynchronous motor; a plurality of groups of fins 14 are provided on the surface of the heat pipe 12, so that the heat dissipation area of the heat pipe 12 is greatly increased, thereby further enhancing the heat dissipation efficiency of the heat pipe 12; because the rotor 5 rotates at high speed during work, lubricating oil is applied between the rotor 5 and the coolant tank 9. When the rotor 5 rotates, the lubricating oil forms a uniform oil film between the rotor 5 and the coolant tank 9, thereby achieving the effect of reducing the wear between the rotor 5 and the coolant tank 9.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency heat conduction and heat dissipation mechanism for a three-phase asynchronous motor, comprising: A coolant tank (9), characterized in that: the coolant tank (9) is fixed on the surface of the rear end cover (6), the other end of the coolant tank (9) is against the surface of the rotor (5), a WPY350350 type ultra-micro water pump (10) is arranged in the coolant tank (9), one end of the WPY350350 type ultra-micro water pump (10) is connected to a drain pipe (11), the other end of the drain pipe (11) is connected to a heat dissipation pipe (12), the other end of the heat dissipation pipe (12) is connected to a return pipe (13), the other end of the return pipe (13) is connected to the other end of the coolant tank (9), a fan shaft (7) is arranged on the surface of the rotor (5), and a fan (8) is fixed to the other end of the fan shaft (7).
2. The high-efficiency heat conduction and heat dissipation mechanism for a three-phase asynchronous motor according to claim 1, characterized in that: An axial hole is provided on the surface of the rear end cover (6), a bearing is arranged in the axial hole of the rear end cover (6), and the bearing sleeve is arranged on the surface of the fan shaft (7).
3. The high-efficiency heat conduction and heat dissipation mechanism for a three-phase asynchronous motor according to claim 1, characterized in that: The liquid discharge pipe (11) and the liquid return pipe (13) are both plugged onto the surface of the rear end cover (6).
4. The high-efficiency heat conduction and heat dissipation mechanism for a three-phase asynchronous motor according to claim 1, characterized in that: The rotor (5) is rotatably connected to the stator (1), and the rear end cover (6) is fixed on the surface of the stator (1).
5. The high-efficiency heat conduction and heat dissipation mechanism for a three-phase asynchronous motor according to claim 1, characterized in that: Lubricating oil is applied between the rotor (5) and the coolant tank (9).
6. The high-efficiency heat conduction and heat dissipation mechanism for a three-phase asynchronous motor according to claim 4, characterized in that: A wind shield (2) is fixed on the surface of the stator (1), an air inlet (3) is provided at one end of the wind shield (2) away from the stator (1), and an air outlet (4) is provided on the side of the wind shield (2).
7. The high-efficiency heat conduction and heat dissipation mechanism for a three-phase asynchronous motor according to claim 1, characterized in that: A plurality of groups of fins (14) are sleeved on the surface of the heat dissipation pipe (12).