Electric drive assembly capable of efficiently adjusting temperature

Abstract

The utility model relates to an electric drive assembly capable of efficiently adjusting temperature, which comprises a drive motor, a first heat exchange component with a waterway cavity is covered outside the drive motor, the end part of a rotating shaft of the drive motor is in transmission connection with a transmission mechanism, and a second heat exchange component for accommodating liquid is arranged on the surface of one side of the transmission mechanism. A liquid flow channel is formed in at least one driving gear in the transmission mechanism, the liquid flow channel communicates with a water outlet of the first heat exchange assembly, and the end of the water outlet of the first heat exchange assembly is connected with a valve body mechanism capable of controlling a water path to be blocked and unblocked; the multi-working-condition self-adaptive heat management innovative design is provided, a traditional one-way heat dissipation mode is broken through, and integrated active heat dissipation of the driving motor and the transmission mechanism in summer and heat preservation of the driving motor through the transmission mechanism in winter are achieved through water way on-off state switching.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, concretely relates to a kind of electric drive assembly of temperature can be efficiently regulated. BACKGROUND

[0002] With the increasingly serious global energy consumption and environmental pollution, the energy consumption and pollution problem of traditional automobile is valued, since new energy automobile has the characteristics of green and clean, energy variety diversification and energy utilization rate, new energy automobile is regarded as the development direction of future automobile.New energy automobile drive system is the heart of new energy automobile.The research and development of foreign new energy automobile drive system is mainly represented by Japan, America and European Union, typical representative enterprises are Volkswagen, Honda and Tesla etc.Volkswagen MEB platform clearly proposes flat wire winding structure, adopts high-speed drive motor of Hairpin winding, and power density reaches 4.0-4.5kW / L or more.Foreign automobile enterprises such as Volvo reduce the volume and weight of motor by continuously improving motor speed.Tesla improves the heat exchange efficiency of drive motor by adopting high-density winding end cooling technology, oil cooling technology, oil cooling and water cooling composite cooling technology.

[0003] The integrated electric drive shell and electric drive assembly are disclosed in CN115027240B, and according to the specification and drawings, in addition to the motor water channel, an end face water channel is also provided, which can cool and cool the motor stator, motor bearing and speed reducer at the same time, the end face water channel is provided with heat dissipation rib plates, which guide the flow direction of the cooling liquid and increase the heat exchange area, improve the heat dissipation performance of the cooling system, and ensure the service life and reliability of the electric drive product.

[0004] However, the scheme still has certain limitations, 1, in winter, the transmission box body connected with the motor in transmission also generates a large amount of heat in rotation, how to effectively utilize the heat to realize the heat preservation of the motor to ensure that the motor can normally run and work efficiently is a problem to be solved;2, how to balance the premise of effectively utilizing waste heat in winter to ensure water cooling heat dissipation of motor and transmission box body in summer is one of the problems to be considered. SUMMARY

[0005] The utility model mainly aims at the temperature control problem of motor in winter and summer, and invents a kind of electric drive assembly of temperature can be efficiently regulated, provides multi-working-condition adaptive thermal management innovative design, breaks through traditional one-way heat dissipation mode, realizes summer integrated active heat dissipation of drive motor and transmission mechanism and winter heat preservation of drive motor by waterway on-off state switching.

[0006] The utility model discloses a can high -efficient temperature's electric drive assembly of adjusting, including drive motor, the first heat exchange subassembly with water route cavity is equipped with to the outside cover of drive motor, the transmission mechanism is connected with to the end transmission of drive motor pivot, the surface of one side of transmission mechanism is equipped with the second heat exchange subassembly of containing liquid, the inside of transmission mechanism is equipped with liquid flow channel to at least one drive gear, and liquid flow channel is connected to the water outlet of first heat exchange subassembly, and the water outlet end of first heat exchange subassembly is connected with the valve body mechanism that can control water route block and unblock.

[0007] As preferred, the first heat exchange assembly includes a motor support upper shell, a motor support lower shell, a heat exchange inner shell and a heat exchange outer shell, the heat exchange inner shell and the heat exchange outer shell are sealingly connected between the motor support upper shell and the motor support lower shell, the drive motor is installed inside the heat exchange inner shell, the surface of the heat exchange inner shell is provided with a plurality of first annular bosses, the gap between the inner wall of the heat exchange outer shell and the first annular bosses is a water route cavity, and the surface of the heat exchange outer shell is further provided with a water inlet and a water outlet.

[0008] As preferred, the transmission mechanism includes a transmission upper shell, a transmission lower shell, a power input gear, a gear support shaft, a first driven gear, a second driven gear and a wheel drive assembly, the rotating shaft of the drive motor passes through the transmission upper shell and is rotatably connected to the inside of the transmission lower shell, the rotating shaft of the drive motor is connected with the power input gear, the inside of the transmission lower shell is provided with the gear support shaft, the gear support shaft is spline-connected with the first driven gear and the second driven gear, the first driven gear is engaged with the power input gear, and the second driven gear is connected to the wheel drive assembly.

[0009] As preferred, the wheel drive assembly includes a wheel drive gear, a differential and a wheel transmission shaft, the wheel drive gear is rotatably connected to the inside of the transmission lower shell, the differential is installed inside the wheel drive gear, the differential moves with the rotation of the wheel drive gear, and the wheel transmission shafts on both sides of the differential pass through the surface inside the transmission upper shell and the transmission lower shell.

[0010] As preferred, the gear support shaft is provided with a support shaft recess near the surface of the transmission lower shell, the support shaft recess is a liquid flow channel, one end of the support shaft recess is connected to the flow guide pipe, and the other end of the flow guide pipe is connected to the water outlet of the first heat exchange assembly.

[0011] As preferred, the second heat exchange assembly comprises a metal support plate and a heat exchange pipeline, the side of the transmission lower shell is provided with the metal support plate, the metal support plate has a gap with the transmission lower shell, and the inside of the gap is provided with the heat exchange pipeline, and the end of the heat exchange pipeline is connected to the surface of the flow guide pipeline.

[0012] As preferred, the valve body mechanism comprises a water valve upper cover, a micro motor, a water valve base, a valve core cavity and a metal valve core, the inside of the water valve upper cover is provided with the micro motor, the inside of the water valve base is provided with a valve body water inlet and a valve body water outlet, the bottom of the water valve upper cover is provided with the valve core cavity between the top of the water valve base, the end of the rotating shaft of the micro motor is connected to the metal valve core, and the rotation of the metal valve core can block or conduct between the valve body water inlet and the valve body water outlet.

[0013] As preferred, the inside of the water valve base is further provided with a hollow valve core support shaft, one side of the valve core support shaft is further provided with a columnar inner groove communicated with the valve body water outlet, the top of the columnar inner groove is provided with a water passing hole, the bottom of the metal valve core is provided with a plurality of second annular bosses matched with the top of the valve core support shaft and a silica gel sealing boss matched with the water passing hole, and the rotation of the metal valve core can make the silica gel sealing boss be clamped in or separated from the inside of the water passing hole.

[0014] As preferred, the diameter of the wheel driving gear is greater than that of the power input gear, the first driven gear and the second driven gear, and the inside of the metal bearing on the surface of the motor support upper shell or the motor support lower shell is connected to the end of the gear support shaft.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The multi-working-condition self-adaptive heat management innovative design is provided, the traditional one-way heat dissipation mode is broken through, and the following is realized through waterway on-off state switching: active heat dissipation in summer: when the water outlet is in the unobstructed state, the synchronous cooling driving motor and transmission mechanism are driven, the high-temperature failure of the gear box lubricating oil in the inside of the transmission mechanism is prevented, and only the motor is cooled in the traditional scheme. Heat energy reuse in winter: the water outlet is in the occluded state, the first heat exchange assembly and the second heat exchange assembly form a heat conduction channel, the mechanical friction heat of the transmission mechanism is conducted to the motor, and the best working temperature of the motor during low-temperature starting is maintained. The heat flow direction of the same waterway system in the flowing / standing state is reversed for the first time, and the contradictory demands of different temperatures in winter and summer of the electric vehicle are solved.

[0017] 2. The innovative design of pump-free passive thermal management provides that when the water passage is in an unobstructed state, the metal heat conduction characteristics of the upper transmission housing, the lower transmission housing and the heat exchange pipeline are utilized in winter to realize the expansion self-circulation effect of the water used for heat preservation in the first heat exchange assembly and the second heat exchange assembly, and when the temperature difference is greater than 30 DEG C, natural convection is generated to realize heat redistribution without additional energy consumption, and the electric water pump is rarely used for work;

[0018] 3. The innovative design of waste heat effective recovery provides that in winter, the second heat exchange assembly and the support shaft recessed hole effectively transmit the waste heat generated by the transmission mechanism to the outside of the driving motor through the first heat exchange assembly, and the utilization of the heat of the transmission mechanism can shorten the preheating time of the driving motor by 60%, the driving motor can ensure that the lubricating oil reaches an appropriate state, reduce friction and wear, thereby improving the starting efficiency and operation stability. In the case of reducing the energy consumption of the power battery, the electric motor can ensure that they work normally in a low temperature environment, reduce energy consumption, and improve the overall energy efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the present application;

[0020] Figure 2 It is a perspective view of the present application;

[0021] Figure 3 It is a schematic diagram of the first heat exchange assembly of the present application;

[0022] Figure 4 It is a perspective view of the present application after the upper transmission housing is removed;

[0023] Figure 5 It is a sectional view of the gear support shaft of the present application;

[0024] Figure 6 It is a perspective view of the present application after the heat exchange outer housing is removed;

[0025] Figure 7 It is a partial perspective view of the present application;

[0026] Figure 8 It is a perspective view of the valve body mechanism when the water passage is unobstructed;

[0027] Figure 9 It is a perspective view of the valve body mechanism when the water passage is blocked.

[0028] Marked in the figure: 1, drive motor; 2, first heat exchange assembly; 21, motor support upper shell; 22, motor support lower shell; 23, heat exchange inner shell; 24, heat exchange outer shell; 25, first annular boss; 26, water inlet; 27, water outlet; 3, transmission mechanism; 31, transmission upper shell; 32, transmission lower shell; 33, power input gear; 34, gear support shaft; 35, first driven gear; 36, second driven gear; 37, wheel drive assembly; 38, metal bearing; 371, wheel drive gear; 372, differential; 373, wheel transmission shaft; 341, support shaft recess; 4, second heat exchange assembly; 41, metal support plate; 42, heat exchange pipeline; 5, valve body mechanism; 51, water valve upper cover; 52, micro motor; 53, water valve base; 54, valve core cavity; 55, metal valve core; 56, valve core support shaft; 57, cylindrical inner groove; 58, silica gel sealing boss; 531, valve body water inlet; 532, valve body water outlet; 571, water passage; 6, flow guide pipeline. DETAILED DESCRIPTION

[0029] The utility model will be further described below in combination with the embodiments shown in the drawings:

[0030] As shown in Figure 1 and Figure 3 , an electric drive assembly capable of efficiently adjusting temperature includes a drive motor 1. The drive motor 1 is a three-phase asynchronous motor, which is a commonly used type of motor in new energy vehicles. The drive motor 1 operates by cutting the magnetic induction lines through the energized conductor. Compared with permanent magnet synchronous motors, three-phase asynchronous motors have lower manufacturing and maintenance costs. High load efficiency: the load efficiency of an induction motor can reach 90%-92%, and the speed range is wide, suitable for various working conditions.

[0031] In this embodiment, please refer to Figure 1 , Figure 3 and Figure 6 , the outer cover of the drive motor 1 is provided with a first heat exchange assembly 2 having a water channel cavity.

[0032] The first heat exchange assembly 2 includes a motor support upper shell 21, a motor support lower shell 22, a heat exchange inner shell 23, and a heat exchange outer shell 24. The heat exchange inner shell 23 and the heat exchange outer shell 24 are sealingly connected between the motor support upper shell 21 and the motor support lower shell 22. The drive motor 1 is installed inside the heat exchange inner shell 23. The surface of the heat exchange inner shell 23 is provided with a plurality of first annular bosses 25. The gap between the inner wall of the heat exchange outer shell 24 and the first annular bosses 25 is a water channel cavity. The surface of the heat exchange outer shell 24 is also provided with a water inlet 26 and a water outlet 27.

[0033] When the drive motor 1 operates at excessively high speed and is in a high-temperature state, the heat generated by the drive motor 1 will be transferred to the heat exchange inner housing 23 and the heat exchange outer housing 24. If air cooling is insufficient to achieve adequate cooling, an external water pump will activate. Water will enter the water channel cavity between the inner wall of the heat exchange outer housing 24 and the first annular protrusion 25 through the inlet 26, gradually filling the entire water channel cavity. Through heat exchange, the water can more effectively remove the heat generated by the motor from the heat exchange inner housing 23, keeping the motor operating within its normal operating temperature range. This helps prevent motor overheating, improves motor reliability, and extends its service life.

[0034] In winter, if heated water enters the water passage cavity between the inner wall of the heat exchange housing 24 and the first annular protrusion 25 through the inlet 26 and gradually fills the entire water passage cavity, the first heat exchange component 2 can also heat the motor in a cold environment, ensuring that it operates within a relatively ideal temperature range, which helps to improve motor efficiency.

[0035] In this embodiment, please refer to... Figure 2 , Figure 4 The drive motor 1 has a transmission mechanism 3 connected to its shaft end. The transmission mechanism 3 includes an upper transmission housing 31, a lower transmission housing 32, a power input gear 33, a gear support shaft 34, a first driven gear 35, a second driven gear 36, and a wheel drive assembly 37. The shaft of the drive motor 1 passes through the upper transmission housing 31 and is rotatably connected to the interior of the lower transmission housing 32. The power input gear 33 is connected to the surface of the shaft of the drive motor 1. The gear support shaft 34 is located inside the lower transmission housing 32. The first driven gear 35 and the second driven gear 36 are splined on the gear support shaft 34. The first driven gear 35 is engaged with the power input gear 33, and the second driven gear 36 is connected to the wheel drive assembly 37.

[0036] The wheel drive assembly 37 includes a wheel drive gear 371, a differential 372, and a wheel drive shaft 373. The wheel drive gear 371 is rotatably connected to the interior of the lower transmission housing 32. The differential 372 is installed inside the wheel drive gear 371, and its movement is synchronized with the rotation of the wheel drive gear 371. The wheel drive shafts 373 on both sides of the differential 372 pass through the interior surfaces of the upper transmission housing 31 and the lower transmission housing 32, respectively. The diameter of the wheel drive gear 371 is larger than that of the power input gear 33, the first driven gear 35, and the second driven gear 36. The interior of the metal bearing 38 on the surface of the motor support upper housing 21 or the motor support lower housing 22 is connected to the end of the gear support shaft 34.

[0037] During rotation, the shaft of the drive motor 1 drives the power input gear 33 to rotate, which in turn drives the first driven gear 35 and the second driven gear 36 to rotate simultaneously. During this rotation, the gear support shaft 34 provides support and guidance. The second driven gear 36 transmits power to the wheel drive gear 371. This transmission process reduces the high speed of the drive motor 1 while amplifying its output torque, ensuring that the wheels of the electric vehicle connected to the end of the wheel drive shaft 373 receive a driving force suitable for the driving scenario (such as starting or climbing).

[0038] In the process of the wheel drive gear 371 driving the differential 372, the differential 372 dynamically adjusts the speed difference between the left and right wheels to ensure that the vehicle maintains stability and handling when turning.

[0039] In this embodiment, please continue to refer to Figure 5 As shown, at least one drive gear inside the transmission mechanism 3 has a liquid flow channel inside, which is connected to the outlet 27 of the first heat exchange component 2. The gear support shaft 34 has a support shaft recess 341 on its surface near the transmission lower housing 32. The support shaft recess 341 is a liquid flow channel. The end of the support shaft recess 341 is connected to one end of the guide pipe 6, and the other end of the guide pipe 6 is connected to the outlet 27 of the first heat exchange component 2.

[0040] The gears inside the transmission mechanism 3 generate a large amount of heat during high-speed rotation. The end of the support shaft recess 341 is connected to the interior of the guide pipe 6, which in turn is connected to the outlet 27 of the heat exchange housing 24. This establishes a preliminary heat exchange mechanism between the transmission mechanism 3 and the first heat exchange component 2.

[0041] In summer, if the transmission mechanism 3 is cooled at the same time as the drive motor 1, it can prevent the lubricating oil used in some gears inside the transmission mechanism 3 from failing due to high temperature.

[0042] In winter, if the heat generated inside the transmission mechanism 3 can be effectively transferred to the gap between the inner wall of the heat exchange housing 24 and the first annular protrusion 25, then the heat generated by the mechanical friction of the transmission mechanism 3 can be conducted to the motor, maintaining the optimal operating temperature of the motor when it is operating at low temperatures.

[0043] Please continue to refer to this. Figure 7As shown, to further enhance the heat exchange efficiency between the transmission mechanism 3 and the first heat exchange component 2, a second heat exchange component 4 for containing liquid is provided on one side of the surface of the transmission mechanism 3. The second heat exchange component 4 includes a metal support plate 41 and a heat exchange pipe 42. The metal support plate 41 is provided on the side of the transmission lower housing 32. There is a gap between the metal support plate 41 and the transmission lower housing 32, and the heat exchange pipe 42 is provided inside the gap. The end of the heat exchange pipe 42 is connected to the interior of the guide pipe 6.

[0044] The heat exchange pipes 42 are arranged in a coiled manner, covering the entire surface of the lower transmission housing 32. The gap between the metal support plate 41 and the lower transmission housing 32 is to ensure that heat is effectively dissipated during summer.

[0045] In summer, the outlet 27 needs to be in a free-flowing mode. Water passing through the inner heat exchange shell 23 and outer heat exchange shell 24 will flow out through the outlet 27. However, since the bottom of the outlet 27 is connected to the guide pipe 6, this discharged water will also flow further into the heat exchange pipe 42 and the support shaft recess 341 through the guide pipe 6. At this point, the heat dissipation of the entire drive motor 1 and the transmission mechanism 3 is integrated, allowing both to effectively dissipate heat. This highly integrated design not only reduces costs but also further ensures the normal operation of the hardware under extreme weather conditions.

[0046] In winter, the outlet 27 needs to be in a closed state, meaning that water entering from the inlet 26 cannot flow out from the outlet 27. Similarly, water passing through the inner heat exchange shell 23 and the outer heat exchange shell 24 will flow out through the outlet 27. However, since the bottom of the outlet 27 is connected to the guide pipe 6, the discharged water will further flow into the heat exchange pipe 42 and the support shaft recess 341 through the guide pipe 6. At this time, the temperature of the entire drive motor 1 can be effectively affected by the heat generated by the transmission mechanism 3. The first heat exchange component 2 outside the drive motor 1 and the second heat exchange component 4 outside the transmission mechanism 3 tend to be integrated. The drive motor 1 can warm the first heat exchange component 2, reducing the risk of abnormal operation of the drive motor 1 due to extreme weather. The highly integrated design not only reduces costs but also further ensures the normal operation of the hardware under extreme weather conditions.

[0047] In this embodiment, to further control the opening of the outlet 27, please refer to [the relevant documentation / reference]. Figure 8 and Figure 9 As shown, Figure 8 This indicates that water can flow out of valve body outlet 532, and Figure 9This indicates that water cannot flow out of the valve body outlet 532. The outlet 27 of the first heat exchange component 2 is connected to a valve body mechanism 5 that can control the blockage and flow of the water path. The valve body mechanism 5 includes a water valve cover 51, a micro motor 52, a water valve base 53, a valve core cavity 54, and a metal valve core 55. The micro motor 52 is located inside the water valve cover 51. The valve body inlet 531 and the valve body outlet 532 are located inside the water valve base 53. The valve core cavity 54 is located between the bottom of the water valve cover 51 and the top of the water valve base 53. The shaft end of the micro motor 52 is connected to the metal valve core 55. The rotation of the metal valve core 55 can block or open the valve body inlet 531 and the valve body outlet 532.

[0048] The water valve base 53 is also provided with a hollow valve core support shaft 56 inside. One side of the valve core support shaft 56 is also provided with a columnar inner groove 57 that communicates with the water outlet 532 of the valve body. The top of the columnar inner groove 57 is provided with a water passage hole 571. The bottom of the metal valve core 55 is provided with several second annular protrusions 551 adapted to the top of the valve core support shaft 56 and silicone sealing protrusions 58 adapted to the water passage hole 571. The rotation of the metal valve core 55 can cause the silicone sealing protrusions 58 to be engaged or disengaged from the inside of the water passage hole 571.

[0049] The water valve cover 51 and the water valve base 53 are sealed together. When it is necessary to control the outlet 27 to be blocked, the shaft of the micro motor 52 will control the metal valve core 55 to rotate, causing the silicone sealing boss 58 at the end of the metal valve core 55 to deform and block the inside of the water passage hole 571. The water flowing from the valve body inlet 531 will be blocked by the fit between the silicone sealing boss 58 and the water passage hole 571. Similarly, after continuing to rotate the metal valve core 55, the silicone sealing boss 58 will move away from the inside of the water passage hole 571. At this time, the water flowing from the valve body inlet 531 will flow out of the valve body outlet 532 through the water passage hole 571 at the top of the columnar inner groove 57.

[0050] Working principle and usage of this invention:

[0051] During summer operation: the shaft of the micro motor 52 will control the metal valve core 55 to rotate, and the silicone sealing boss 58 will move away from the inside of the water passage hole 571. At this time, the water flowing from the valve body inlet 531 will flow out from the valve body outlet 532 to the outside through the water passage hole 571 at the top of the columnar inner groove 57, and the outlet 27 is in a smooth state.

[0052] At this point, the water passing through the heat exchange inner shell 23 and the heat exchange outer shell 24 will flow out through the outlet 27. However, since the bottom of the outlet 27 is connected to the guide pipe 6, the discharged water will also flow further into the heat exchange pipe 42 and the support shaft recess 341 through the guide pipe 6. At this point, the heat dissipation of the entire drive motor 1 and the transmission mechanism 3 tends to be integrated, and both can effectively dissipate heat. In terms of design, not only is the high integration reducing costs, but it also further ensures the normal operation of the hardware under extreme weather conditions.

[0053] During winter operation: The shaft of the micro motor 52 controls the metal valve core 55 to rotate, causing the silicone sealing boss 58 at the end of the metal valve core 55 to deform and block the inside of the water passage hole 571. The water flowing from the valve body inlet 531 will be blocked by the fit between the silicone sealing boss 58 and the water passage hole 571, and the outlet 27 will be in a blocked state.

[0054] At this time, the water passing through the heat exchange inner shell 23 and the heat exchange outer shell 24 will flow out through the outlet 27. However, since the bottom of the outlet 27 is connected to the guide pipe 6, the discharged water will also flow into the heat exchange pipe 42 and the support shaft recess 341 through the guide pipe 6. At this time, the temperature of the entire drive motor 1 can be effectively affected by the heat generated by the transmission mechanism 3. The first heat exchange component 2 outside the drive motor 1 and the second heat exchange component 4 outside the transmission mechanism 3 tend to be integrated. The drive motor 1 can heat the first heat exchange component 2. When the drive motor 1 does not need to be heated, the outlet 27 is opened to drain the water, reducing the risk of abnormal operation of the drive motor 1 due to extreme weather. The design not only has high integration, reducing costs, but also further ensures the normal operation of the hardware under extreme weather conditions.

[0055] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An electric drive assembly capable of efficient temperature regulation, comprising a drive motor (1), characterized in that, The outer cover of the driving motor (1) is provided with a first heat exchange assembly (2) with a water channel cavity, the driving motor (1) is drivingly connected with a transmission mechanism (3) at the end of the rotating shaft, the surface of one side of the transmission mechanism (3) is provided with a second heat exchange assembly (4) containing liquid, the inside of at least one driving gear of the transmission mechanism (3) is provided with a liquid flow channel, the liquid flow channel is communicated with the water outlet (27) of the first heat exchange assembly (2), and the end of the water outlet (27) of the first heat exchange assembly (2) is connected with a valve body mechanism (5) capable of controlling water channel blockage and smoothness.

2. The electric drive assembly capable of efficient temperature regulation of claim 1, wherein, The first heat exchange assembly (2) comprises a motor support upper shell (21), a motor support lower shell (22), a heat exchange inner shell (23) and a heat exchange outer shell (24), the heat exchange inner shell (23) and the heat exchange outer shell (24) are sealingly connected between the motor support upper shell (21) and the motor support lower shell (22), the driving motor (1) is installed in the inside of the heat exchange inner shell (23), the surface of the heat exchange inner shell (23) is provided with a plurality of first annular bosses (25), the gap between the inner wall of the heat exchange outer shell (24) and the first annular bosses (25) is a water channel cavity, and the surface of the heat exchange outer shell (24) is also provided with a water inlet (26) and a water outlet (27).

3. The electric drive assembly capable of efficient temperature regulation of claim 2, wherein, The transmission mechanism (3) comprises a transmission upper shell (31), a transmission lower shell (32), a power input gear (33), a gear support shaft (34), a first driven gear (35), a second driven gear (36) and a wheel driving assembly (37), the rotating shaft of the driving motor (1) is rotatably connected to the inside of the transmission lower shell (32) through the transmission upper shell (31), the surface of the rotating shaft of the driving motor (1) is connected with the power input gear (33), the inside of the transmission lower shell (32) is provided with the gear support shaft (34), the gear support shaft (34) is spline-connected with the first driven gear (35) and the second driven gear (36), the first driven gear (35) is engaged with the power input gear (33), and the second driven gear (36) is connected to the wheel driving assembly (37).

4. The electric drive assembly capable of efficient temperature regulation of claim 3, wherein, The wheel driving assembly (37) comprises a wheel driving gear (371), a differential (372) and a wheel transmission shaft (373), the wheel driving gear (371) is rotatably connected to the inside of the transmission lower shell (32), the differential (372) is installed in the inside of the wheel driving gear (371), the differential (372) moves with the rotation of the wheel driving gear (371), and the wheel transmission shaft (373) on the two sides of the differential (372) respectively penetrates the inside of the surface of the transmission upper shell (31) and the transmission lower shell (32).

5. The electric drive assembly capable of efficient temperature regulation of claim 4, wherein, The gear support shaft (34) is provided with a support shaft recess (341) near the surface of the transmission lower shell (32), the support shaft recess (341) is a liquid flow channel, and the end of the support shaft recess (341) is connected to one end of the flow guide pipe (6), and the other end of the flow guide pipe (6) is connected to the water outlet (27) of the first heat exchange assembly (2).

6. The electric drive assembly capable of efficient temperature regulation of claim 5, wherein, The second heat exchange assembly (4) comprises a metal support plate (41) and a heat exchange pipe (42), and the side surface of the transmission lower shell (32) is provided with a metal support plate (41), and the metal support plate (41) has a gap with the transmission lower shell (32), and the gap is internally provided with a heat exchange pipe (42), and the end of the heat exchange pipe (42) is communicated with the inside of the flow guide pipe (6).

7. The electric drive assembly capable of efficient temperature regulation of claim 6, wherein, The valve body mechanism (5) comprises a water valve upper cover (51), a micro motor (52), a water valve base (53), a valve core cavity (54) and a metal valve core (55), the inside of the water valve upper cover (51) is provided with a micro motor (52), the inside of the water valve base (53) is provided with a valve body water inlet (531) and a valve body water outlet (532), the bottom of the water valve upper cover (51) and the top of the water valve base (53) are provided with a valve core cavity (54), the rotating shaft end of the micro motor (52) is connected to the metal valve core (55), and the rotation of the metal valve core (55) can block or conduct between the valve body water inlet (531) and the valve body water outlet (532).

8. The electric drive assembly capable of efficient temperature regulation of claim 7, wherein, The inside of the water valve base (53) is also provided with a hollow valve core support shaft (56), one side of the valve core support shaft (56) is also provided with a cylindrical inner groove (57) communicated with the valve body water outlet (532), the top of the cylindrical inner groove (57) is provided with a water passing hole (571), the bottom of the metal valve core (55) is provided with a plurality of second annular bosses (551) adapted to the top of the valve core support shaft (56) and a silica gel sealing boss (58) adapted to the water passing hole (571), and the rotation of the metal valve core (55) can make the silica gel sealing boss (58) be clamped in or separated from the inside of the water passing hole (571).

9. The electric drive assembly capable of efficient temperature regulation of claim 4, wherein, The diameter of the wheel drive gear (371) is greater than that of the power input gear (33), the first driven gear (35) and the second driven gear (36), and the inside of the metal bearing (38) on the surface of the motor support upper shell (21) or the motor support lower shell (22) is connected to the end of the gear support shaft (34).

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