High-voltage motor with intelligent thermal management system

Abstract

The invention relates to a high-voltage motor with an intelligent thermal management system, which is applied to the technical field of thermal management of high-voltage motors. The high-voltage motor comprises a motor main body, a rapid cooler and an intelligent thermal manager, the motor main body comprises a torque sensor A arranged on a rotating shaft, a temperature sensor arranged on a stator and a rotating speed sensor arranged on a rear machine cover; the rapid cooler comprises a U-shaped pipe and an electric valve; the intelligent heat manager comprises a temperature regulation and control module and a signal analysis module; the signal analysis module can use a torque sensor A and a rotating speed sensor to judge whether the motor has a locked-rotor condition of large torque and no rotating speed or judge whether the motor has an abnormal condition of temperature imbalance through a temperature sensor, and when the condition exists, the temperature regulation and control module can control the water pump to improve the operation power, and the motor is protected. And the electric valve is opened to quickly cool the cooling liquid in the U-shaped pipe to an extremely low temperature, so that the motor is quickly cooled.

Description

Technical Field

[0001] The present invention relates to a high-voltage motor, and in particular to a high-voltage motor with an intelligent thermal management system, which is applied to the technical field of thermal management of high-voltage motors. Background Art

[0002] In actual production, high-voltage motors may become stalled during operation. At this time, the current inside the motor will rise rapidly, causing the motor temperature to rise sharply, which may damage the insulation material of the motor and even cause the motor windings to overheat and melt. Therefore, it is very important to quickly cool the stalled high-voltage motor.

[0003] The invention patent with publication number CN109327113A discloses a cooling motor, including a casing, a front cover, a rear cover, a stator, a rotor, a rotating shaft and a bearing; one end of the casing is sealed and connected to the front cover, and the other end is sealed and connected to the rear cover; an oil path is formed on the inner wall of the rear cover from the edge to the center; an oil path is provided at the center of the rotating shaft along its axial direction; one end of the oil path is a closed end, and the other end is an open end; oil outlet holes are respectively penetrated through the side walls at both ends of the rotating shaft; the oil outlet holes are close to the bearing and communicated with the oil path; an oil filling port communicated with the sealing cavity is provided on the top wall of the casing; a groove is provided on the inner wall of the casing and a cooling flow channel is formed between the groove and the stator; one end of the cooling flow channel is communicated with the oil filling port, and the other end is communicated with the oil inlet of the oil path; however, the cooling effect of the above arrangement is constant; when the heat generation of the motor increases rapidly, it cannot effectively cool the heat quickly, so that the motor is prone to overheating and damage, resulting in a reduction in the service life of the motor.

[0004] In order to solve the problem that general cooling motors cannot effectively adjust the cooling efficiency according to the heat generated by the motor, which easily leads to motor damage or reduced service life, this solution proposes a high-voltage motor with an intelligent thermal management system. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the general cooling motor cannot make adaptive adjustments according to the heat generated by the motor, which easily causes damage to the motor or reduces its service life.

[0006] To solve the above problems, the present invention provides a high-voltage motor with an intelligent thermal management system, including a motor body, a cooler, a fast cooler and an intelligent thermal manager;

[0007] The motor body includes a cooling shell, a stator fixed inside the cooling shell, and a rotor arranged in the stator. A rotating shaft is fixed on the rotor, and a torque sensor A is arranged on the rotating shaft. A front machine cover and a rear machine cover are respectively fixed on the front and rear sides of the cooling shell. A temperature sensor is arranged on the stator, and a speed sensor is arranged on the rear machine cover. A plurality of cooling inner tubes are opened on the cooling shell, and a plurality of shell liquid inlets connected to the cooling inner tubes are arranged at the upper end of the cooling shell, and a plurality of shell liquid outlets connected to the cooling inner tubes are arranged at the lower end of the cooling shell.

[0008] The rapid cooler comprises a coolant box, a U-shaped tube is arranged in the coolant box, a water outlet of the U-shaped tube is connected to a plurality of T-shaped tube-water outlets through a pipeline, each T-shaped tube-water outlet is respectively connected to a corresponding shell liquid inlet, the water inlet of the U-shaped tube is connected to the water inlet of the rapid cooler through a pipeline, the top of the coolant box is connected to a high-pressure bottle through a pipeline, and an electric valve is installed on the pipeline between the high-pressure bottle and the coolant box;

[0009] The intelligent thermal manager includes a temperature control module and a signal analysis module. The signal analysis module is electrically connected to the temperature sensor, torque sensor A and speed sensor respectively. The temperature control module is electrically connected to the electric valve. The signal analysis module is signal-connected to the temperature control module.

[0010] In the above-mentioned high-voltage motor with intelligent thermal management system, large-scale and rapid temperature control can be achieved, and special treatment is made for abnormal conditions of the motor.

[0011] As a further improvement of the present application, the motor main body is connected to a cooler through a pipeline, and the cooler includes a drain pipe and a collecting pipe, and a plurality of cooling pipes are vertically fixedly connected between the drain pipe and the collecting pipe, each cooling pipe is vertically plugged with a plurality of heat conducting plates, and a plurality of cooling fans are fixed on the side of the heat conducting plate, the upper end of the drain pipe is connected to a water inlet of the cooler, the water inlet of the cooler is connected to an electric valve through a pipeline, the lower end of the collecting pipe is connected to a water outlet of the cooler, the water outlet of the cooler is connected to a water outlet of a water pump through a pipeline, the water inlet of the water pump is connected to a plurality of T-tube two water inlets through a pipeline, each T-tube two water inlet is respectively connected to the liquid outlet of the shell connected with the corresponding pipeline, and the temperature control module is electrically connected to the cooling fan and the water pump respectively.

[0012] As a further improvement of the present application, the cooling inner tube is arranged axially inside the cooling shell, and the diameters of the multiple cooling inner tubes increase successively from both sides of the cooling shell to the middle of the cooling shell, and each shell liquid inlet and shell liquid outlet are correspondingly connected to the same number of cooling inner tubes.

[0013] As a further improvement of the present application, a cutting mechanism is installed on one side of the motor body, and the cutting mechanism includes a driving disk and a driven disk arranged adjacent to each other. A pressure sensor is fixed on one side of the driving disk, and the pressure sensor is installed on the telescopic end of the electric telescope away from the driving disk. The fixed end of the electric telescope is connected to the rotating shaft, and a cutting mechanism housing is provided on the side of the driven disk away from the driving disk. The middle part of the cutting mechanism housing is rotatably connected with a driven shaft connected to the driven disk, and a torque sensor B is provided on the driven shaft. One side of the cutting mechanism housing is fixed to the outside of the front engine cover.

[0014] As another improvement of the present application, an electromagnet is fixed in the driving disk through an opening, an elastic member is arranged on the outside of the electromagnet, one end of the elastic member is connected to a transmission shaft, a face gear is arranged on the outside of the transmission shaft, a face gear corresponding to the transmission shaft is arranged inside the driven disk, and the corresponding positions of the transmission shaft and the electromagnet are made of magnetic material. The intelligent thermal manager also includes a cut-off module, which is electrically connected to the torque sensor B, the pressure sensor, the electromagnet and the electric expander, respectively, and the cut-off module is signal-connected to the signal analysis module.

[0015] As another improvement supplement of the present application, the contact surfaces of the driving disk and the driven disk are both rough surfaces, and the contact surfaces of the driven disk and the cutting mechanism housing are both smooth surfaces.

[0016] As another improvement of the present application, the stator and the cooling shell are wrapped with heat-conducting materials at corresponding positions, and a heat dissipation plate is fixed to the outer wall of the cooling shell along its axial direction.

[0017] As another improved supplement of the present application, the speed sensor is a magnetoelectric speed sensor, and the rotating shaft is interspersed with magnetic materials and non-magnetic materials at corresponding positions of the speed sensor.

[0018] In summary, when the motor is working in an abnormal state, the signal analysis module will determine that the motor has an abnormal temperature imbalance through the torque sensor A, the speed sensor and the temperature sensor. At this time, the temperature control module will inform the temperature control module of the abnormal information. The temperature control module will first increase the circulation rate of the coolant and open the electric valve to allow the refrigerant in the high-pressure bottle to cool the coolant in the U-tube. Then the coolant enters the cooling shell to cool the motor. When the signal analysis module detects that the above abnormal state disappears, the temperature control module will close the electric valve and slow down the circulation rate of the coolant; when the motor is operating normally and the motor temperature is higher than the average room temperature, the temperature control module will control the water pump and the cooling fan to operate at a more reasonable operating power, and the temperature control module will also dynamically control according to the temperature signal of the signal analysis module; when the motor is operating normally and the motor temperature is slightly higher than the average room temperature, the temperature control module will not start the water pump and the cooling fan, but passively dissipate heat through the heat dissipation plate of the cooling shell. Through the above gradient temperature control design, the device realizes the different heat generation of the motor and realizes adaptive adjustment of the cooling efficiency, which protects the motor and saves energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional structural diagram of an intelligent temperature-controlled high-voltage motor according to the first and second embodiments of the present application;

[0020] Figure 2 This is an exploded view of the motor body of the first and second embodiments of the present application;

[0021] Figure 3 This is an anatomical diagram of a rapid cooler according to the first and second embodiments of the present application;

[0022] Figure 4 A three-dimensional structural diagram of a cooler according to the first and second embodiments of the present application;

[0023] Figure 5 This is an anatomical diagram of the cooling housing of the first and second embodiments of the present application;

[0024] Figure 6 This is a control principle block diagram of an intelligent signal processor according to the first embodiment of the present application;

[0025] Figure 7 This is an exploded view of a cutting mechanism according to a second embodiment of the present application;

[0026] Figure 8 For this application Figure 7 Enlarged view of point A in the middle;

[0027] Fig. 9 An exploded view of the cutting mechanism of the second embodiment of the present application from another perspective;

[0028] Fig.10 This is a block diagram of the control principle of the intelligent signal processor of the second embodiment of the present application.

[0029] Description of the numbers in the figure:

[0030] 1. Motor body; 2. Cooler; 3. Quick cooler; 4. Cut-off mechanism; 10. Cooling shell; 101. Cooling inner tube; 11. Stator; 111. Temperature sensor; 12. Rotor; 13. Rotating shaft; 131. Torque sensor A; 14. Front cover; 15. Rear cover; 151. Speed ​​sensor; 16. Shell liquid inlet; 17. Shell liquid outlet; 20. Drain pipe; 21. Collecting pipe; 22. Cooling pipe; 23. Heat conduction plate; 24. Cooling fan; 25. Cooler water inlet; 26. Cooler water outlet; 27. Water pump; 28. T-tube second water inlet; 30. Coolant box; 31. U-tube; 32. High-pressure bottle; 33. Electric valve; 34. T-tube first water outlet; 35. Quick cooler water inlet; 40. Drive disc; 41. Driven disc; 42. Driven shaft; 43. Torque sensor B; 44. Cutting mechanism housing; 45. Pressure sensor; 46. Transmission shaft; 47. Elastic part; 48. Electromagnet; 49. Electric telescope. DETAILED DESCRIPTION

[0031] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0032] The first implementation method:

[0033] See also Figure 1-Figure 6 A high-voltage motor with an intelligent thermal management system includes a motor body 1, a cooler 2, a rapid cooler 3 and an intelligent thermal manager; the motor body 1 includes a cooling shell 10, a stator 11 fixed inside the cooling shell 10 and a rotor 12 arranged in the stator 11, a rotating shaft 13 is fixed on the rotor 12, a torque sensor A131 is arranged on the rotating shaft 13, and the torque sensor A131 is used to detect the torque of the rotating shaft 13, a front cover 14 and a rear cover 15 are respectively fixed on the front and rear sides of the cooling shell 10, and a temperature sensor 111 is arranged on the stator 11 , the temperature sensor 111 is arranged in this way to measure the motor temperature more accurately, a speed sensor 151 is arranged on the rear engine cover 15, a plurality of cooling inner tubes 101 are opened on the cooling shell 10, a plurality of shell liquid inlets 16 connected to the cooling inner tubes 101 are arranged at the upper end of the cooling shell 10, and a plurality of shell liquid outlets 17 connected to the cooling inner tubes 101 are arranged at the lower end of the cooling shell 10. Through the above arrangement, the coolant will enter the cooling inner tube 101 from the shell liquid inlet 16, and cool the stator 11 and the rotor 12 together, and finally flow out from the shell liquid outlet 17.

[0034] The quick cooler 3 includes a coolant box 30, in which a U-shaped tube 31 is arranged. The water outlet of the U-shaped tube 31 is connected to multiple T-shaped tube-water outlets 34 through a pipeline. Each T-shaped tube-water outlet 34 is respectively connected to the corresponding shell liquid inlet 16. The water inlet of the U-shaped tube 31 is connected to the quick cooler water inlet 35 through a pipeline. The top of the coolant box 30 is connected to a high-pressure bottle 32 through a pipeline. An electric valve 33 is installed on the pipeline between the high-pressure bottle 32 and the coolant box 30. The high-pressure bottle 32 is filled with liquid nitrogen or other refrigerants that can quickly cool down. The freezing point of the coolant is below zero degrees and is not easily frozen by the quick cooler 3.

[0035] The intelligent thermal manager includes a temperature control module and a signal analysis module. The signal analysis module is electrically connected to the temperature sensor 111, the torque sensor A131 and the speed sensor 151 respectively. The signal analysis module detects the temperature change of the motor through the temperature sensor 111 to determine whether the motor is abnormal. The signal analysis module can also determine whether the motor has a large torque but no abnormal speed through the torque sensor A131 and the speed sensor 151. The temperature control module is electrically connected to the electric valve 33, and the signal analysis module is signal-connected to the temperature control module, so that the signal analysis module transmits the judgment signal to the temperature control module.

[0036] Through the above connection, when the signal analysis module receives the detection data fed back by the torque sensor A131, the speed sensor 151 and the temperature sensor 111, and determines that the motor has an abnormal temperature imbalance, the temperature control module will send the abnormal information to the temperature control module, and the temperature control module controls to increase the circulation rate of the coolant. The temperature control module then controls to open the electric valve 33 to allow the refrigerant in the high-pressure bottle 32 to cool the coolant in the U-tube 31, and then the coolant enters the cooling shell 10 to cool the motor. When the signal analysis module determines that the abnormal state disappears through the detection data fed back by the torque sensor A131, the speed sensor 151 and the temperature sensor 111, the temperature control module will close the electric valve 33 and adjust the circulation rate of the coolant to normal.

[0037] In addition, the motor body 1 is connected to the cooler 2 through a pipeline. The cooler 2 includes a drain pipe 20 and a collecting pipe 21. A plurality of cooling pipes 22 are vertically fixedly connected between the drain pipe 20 and the collecting pipe 21. Each cooling pipe 22 is vertically plugged with a plurality of heat conducting plates 23. A plurality of cooling fans 24 are fixed on the side of the heat conducting plate 23. Through the above arrangement, the coolant will enter the cooling pipe 22 from the collecting pipe 21. The cooling pipe 22 diffuses the heat in the coolant into the heat conducting plate 23. Due to the action of the cooling fan 24, the temperature of the coolant will quickly diffuse into the environment. The upper end of the drain pipe 20 is connected to the cooler water inlet 25. The cooler water inlet 25 is connected to the electric valve 33 through a pipeline. The lower end of the collecting pipe 21 is connected to the cooler water inlet 25. A cooler water outlet 26 is connected, and the cooler water outlet 26 is connected to the water outlet of a water pump 27 through a pipeline. The water inlet of the water pump 27 is connected to multiple T-tube water inlets 28 through a pipeline. Each T-tube water inlet 28 is respectively connected to the shell liquid outlet 17 connected to the corresponding pipeline. The temperature control module is electrically connected to the cooling fan 24 and the water pump 27 respectively. The temperature control module can control the operating power of the cooling fan 24 and the water pump 27. When the motor operates normally and the motor temperature is higher than the average room temperature, the temperature control module will control the water pump 27 and the cooling fan 24 to operate at a more reasonable operating power, and the temperature control module will also perform dynamic regulation according to the temperature signal of the signal analysis module.

[0038] In addition, the cooling inner tube 101 is arranged axially inside the cooling shell 10, and the diameters of the multiple cooling inner tubes 101 increase successively from the two sides of the cooling shell 10 to the middle of the cooling shell 10. This arrangement will not cause more coolant to flow to the cooling inner tube 101 close to the shell liquid inlet 16, thereby causing the problem of uneven temperature of the entire motor. Each shell liquid inlet 16 and shell liquid outlet 17 are correspondingly connected to the same number of cooling inner tubes 101.

[0039] In addition, the corresponding parts of the stator 11 and the cooling shell 10 are wrapped with heat-conducting materials. This arrangement not only effectively improves the cooling efficiency of the motor, but also prevents the condensed water on the cooling shell 10 from damaging the stator 11 during rapid cooling; a heat sink is fixed to the outer wall of the cooling shell 10 along its axial direction. When the motor operates normally and the motor temperature is slightly higher than the average room temperature, the temperature control module will not start the water pump 27 and the cooling fan 24, but will passively dissipate heat through the heat sink of the cooling shell 10, thereby realizing rational utilization of resources.

[0040] In addition, the speed sensor 151 is a magnetoelectric speed sensor. The rotating shaft 13 is interspersed with magnetic materials and non-magnetic materials at the corresponding position of the speed sensor 151. The speed sensor 151 can obtain the speed information of the motor by detecting the magnetic material.

[0041] The second implementation method:

[0042] See also Figure 7-10 , which is different from the first embodiment, a cutting mechanism 4 is installed on one side of the motor body 1, and the cutting mechanism 4 includes a driving disk 40 and a driven disk 41 arranged adjacent to each other. When the driving disk 40 rotates, the driven disk 41 will rotate due to the friction force. A pressure sensor 45 is fixed on one side of the driving disk 40, and the pressure sensor 45 is installed on the telescopic end of the electric telescope 49 away from the driving disk 40. The pressure sensor 45 is used to detect the pressure applied by the electric telescope 49 to the driving disk 40. The fixed end of the electric telescope 49 is connected to the rotating shaft 13, and a cutting mechanism housing 44 is provided on the side of the driven disk 41 away from the driving disk 40. The middle part of the cutting mechanism housing 44 is rotatably connected to a driven shaft 42 connected to the driven disk 41, and a torque sensor B43 is provided on the driven shaft 42. The torque sensor B43 is used to detect the torque of the driven shaft 42, and one side of the cutting mechanism housing 44 is fixed to the outer side of the front engine cover 14.

[0043] An electromagnet 48 is fixed through an opening in the driving disk 40, and an elastic member 47 is arranged on the outside of the electromagnet 48. The characteristics of the electromagnet 48 are that it is magnetic when powered on and non-magnetic when powered off. One end of the elastic member 47 is connected to the transmission shaft 46, and a face gear is arranged on the outside of the transmission shaft 46. A face gear corresponding to the transmission shaft 46 is arranged inside the driven disk 41. The sizes of the gears on the transmission shaft 46 and the driven disk 41 are the same as the size of the rotating shaft 13, so as to control the docking state of the transmission shaft 46 and the rotating shaft 13. The corresponding positions of the transmission shaft 46 and the electromagnet 48 are magnetic materials. The intelligent thermal manager also includes a cut-off module, which is electrically connected to the torque sensor B43, the pressure sensor 45, the electromagnet 48 and the electric expander 49 respectively, and the cut-off module is signal-connected to the signal analysis module.

[0044] Through the above settings, when the signal analysis module sends an abnormal signal to the cut-off module, the cut-off module will control the electromagnet 48 to be energized and the electric retractor 49 to contract, thereby protecting the motor; when the load driven by the motor is large, the cut-off module will control the friction between the driving disk 40 and the driven disk 41 through the electric retractor 49 to increase from small to large, thereby realizing the soft start of the motor for the load; when the driving module detects that the pressure has reached the upper limit through the pressure sensor 45, and the torque of the torque sensor B43 is still less than the torque sensor A131, the cut-off module will control the electromagnet 48 to be powered off, thereby using the transmission shaft 46 to drive the driven shaft 42.

[0045] In addition, the contact surfaces of the driving disk 40 and the driven disk 41 are both rough surfaces, so that the friction between the driving disk 40 and the driven disk 41 can be sufficiently large, and the contact surfaces of the driven disk 41 and the cutting mechanism housing 44 are both smooth surfaces, thereby reducing the friction between the driven disk 41 and the cutting mechanism housing 44 and reducing energy loss.

[0046] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A high voltage motor with an intelligent thermal management system, characterized in that: It comprises a motor body (1), a cooler (2), a quick cooler (3) and an intelligent thermal manager; The motor body (1) comprises a cooling shell (10), a stator (11) fixed inside the cooling shell (10), and a rotor (12) arranged inside the stator (11); a rotating shaft (13) is fixed on the rotor (12); a torque sensor A (131) is arranged on the rotating shaft (13); a front machine cover (14) and a rear machine cover (15) are respectively fixed on the front and rear sides of the cooling shell (10); a temperature sensor (111) is arranged on the stator (11); a speed sensor (151) is arranged on the rear machine cover (15); a plurality of cooling inner tubes (101) are provided on the cooling shell (10); a plurality of shell liquid inlets (16) connected to the cooling inner tubes (101) are provided at the upper end of the cooling shell (10); and a plurality of shell liquid outlets (17) connected to the cooling inner tubes (101) are provided at the lower end of the cooling shell (10); The rapid cooler (3) comprises a coolant box (30), a U-shaped tube (31) is arranged inside the coolant box (30), a water outlet of the U-shaped tube (31) is connected to a plurality of T-shaped tube-water outlets (34) via a pipeline, each of the T-shaped tube-water outlets (34) is respectively connected to a corresponding shell liquid inlet (16), a water inlet of the U-shaped tube (31) is connected to a rapid cooler water inlet (35) via a pipeline, a top end of the coolant box (30) is connected to a high-pressure bottle (32) via a pipeline, and an electric valve (33) is installed on the pipeline between the high-pressure bottle (32) and the coolant box (30); The intelligent thermal manager comprises a temperature control module and a signal analysis module, the signal analysis module being electrically connected to a temperature sensor (111), a torque sensor A (131) and a rotation speed sensor (151) respectively, the temperature control module being electrically connected to an electric valve (33), and the signal analysis module being signal-connected to the temperature control module.

2. A high voltage motor with an intelligent thermal management system according to claim 1, characterized in that: The motor body (1) is connected to a cooler (2) via a pipeline. The cooler (2) comprises a liquid drainage pipe (20) and a liquid collecting pipe (21). A plurality of cooling pipes (22) are vertically fixedly connected between the liquid drainage pipe (20) and the liquid collecting pipe (21). Each cooling pipe (22) is vertically plugged with a plurality of heat conducting plates (23). A plurality of cooling fans (24) are fixed on the side of the heat conducting plate (23). The upper end of the liquid drainage pipe (20) is connected to a cooler water inlet (25). The cooler water inlet (25) is connected to the cooler water inlet (25). 5) An electric valve (33) is connected via a pipeline, the lower end of the collecting pipe (21) is connected to a cooler water outlet (26), the cooler water outlet (26) is connected to a water outlet of a water pump (27) via a pipeline, the water inlet of the water pump (27) is connected to a plurality of T-tube water inlets (28) via a pipeline, each of the T-tube water inlets (28) is respectively connected to a shell liquid outlet (17) connected to a corresponding pipeline, and the temperature control module is respectively electrically connected to a cooling fan (24) and a water pump (27).

3. A high voltage motor with an intelligent thermal management system according to claim 1, characterized in that: The cooling inner tube (101) is axially arranged inside the cooling shell (10), and the diameters of the plurality of cooling inner tubes (101) increase sequentially from both sides of the cooling shell (10) toward the middle of the cooling shell (10), and each of the shell liquid inlet (16) and shell liquid outlet (17) is correspondingly connected to the same number of cooling inner tubes (101).

4. The high-voltage motor with an intelligent thermal management system according to claim 1, characterized in that: A cut-off mechanism (4) is installed on one side of the motor body (1), and the cut-off mechanism (4) comprises a driving disk (40) and a driven disk (41) arranged adjacent to each other. A pressure sensor (45) is fixed on one side of the driving disk (40), and the side of the pressure sensor (45) away from the driving disk (40) is installed on the telescopic end of an electric telescopic device (49), and the fixed end of the electric telescopic device (49) is connected to the rotating shaft (13). A cut-off mechanism housing (44) is provided on the side of the driven disk (41) away from the driving disk (40), and a driven shaft (42) connected to the driven disk (41) is rotatably connected to the middle part of the cut-off mechanism housing (44), and a torque sensor B (43) is provided on the driven shaft (42), and one side of the cut-off mechanism housing (44) is fixed to the outside of the front engine cover (14).

5. A high voltage motor with an intelligent thermal management system according to claim 4, characterized in that: An electromagnet (48) is fixed in the driving disk (40) through an opening, an elastic member (47) is arranged on the outside of the electromagnet (48), one end of the elastic member (47) is connected to a transmission shaft (46), a face gear is arranged on the outside of the transmission shaft (46), a face gear corresponding to the transmission shaft (46) is arranged inside the driven disk (41), and the corresponding positions of the transmission shaft (46) and the electromagnet (48) are made of magnetic material. The intelligent thermal manager also includes a cut-off module, which is electrically connected to the torque sensor B (43), the pressure sensor (45), the electromagnet (48) and the electric retractor (49) respectively, and the cut-off module is signal-connected to the signal analysis module.

6. A high voltage motor with an intelligent thermal management system according to claim 4, characterized in that: The contact surfaces of the driving disk (40) and the driven disk (41) are both rough surfaces, and the contact surfaces of the driven disk (41) and the cutting mechanism housing (44) are both smooth surfaces.

7. The high voltage motor with an intelligent thermal management system according to claim 1, characterized in that: The stator (11) and the cooling shell (10) are wrapped with heat-conducting material at corresponding locations, and a heat dissipation plate is fixed to the outer wall of the cooling shell (10) along its axial direction.

8. The high voltage motor with intelligent thermal management system according to claim 1, characterized in that: The rotation speed sensor (151) is a magnetoelectric rotation speed sensor, and the rotating shaft (13) is interspersed with magnetic materials and non-magnetic materials at corresponding positions of the rotation speed sensor (151).

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