Power motor of pure electric drive vehicle and power supply mode

Abstract

The invention discloses a power motor and a power supply mode of a pure electric drive vehicle. A main body comprises the power motor, a power supply system and a cooling system; the main body of the power supply system comprises a driving motor, a labor-saving gear transmission machine, a generator, an electric control assembly and a battery; the driving motor is connected with the labor-saving gear transmission machine and drives a power input gear of the labor-saving gear transmission machine to rotate, and finally power is output through a power output gear. According to the labor-saving gear transmission machine, a power input gear is connected with a driving motor, and a power output gear is further connected with a generator; one wire group of the electric control assembly is connected to the driving motor, one wire group of the electric control assembly is connected to the battery, one wire group of the electric control assembly is connected to the generator, one wire group of the electric control assembly is connected to the cooling system, one wire group of the electric control assembly is connected to the power motor, and one wire group of the electric control assembly is connected to the driving motor starting switch; and one wire group is connected to the power motor speed controller.

Description

Technical Field

[0001] The present invention relates to a power motor and a power supply method of a pure electric drive vehicle, in particular to a drive motor of a pure electric vehicle, and a power supply method with a power generation system. Background Art

[0002] The current driving motors of various types of pure electric vehicles cannot convert electrical energy into mechanical energy 100%, and there is some loss in energy conversion; the current pure electric vehicles all use battery packs as power sources. However, the battery pack has limited power and cannot be used for a long time. When the power is exhausted, an external power supply is required, and it is also prone to spontaneous combustion. Summary of the invention In order to overcome the above defects and shortcomings of the power motor and power supply method of pure electric drive vehicles, the purpose of the present invention is to provide an electric motor that can convert electrical energy into mechanical energy 100%, and a power supply method with a generator that can be used for a long time, safely and efficiently.

[0003] The technical solution adopted by the present invention to solve its technical problem is: The power motor and power supply method of the pure electric drive vehicle of the present invention mainly include a power motor, a power supply system, and a cooling system; The power motor described above mainly includes an electric motor and a labor-saving gear transmission mechanism; The power output end of the motor is connected to a labor-saving gear transmission mechanism, and the motor outputs power through the labor-saving gear transmission mechanism; The labor-saving gear transmission machinery mainly comprises a gear box, a power input gear, a transmission gear, a power output gear, a bearing and a flywheel.

[0004] The gear box is a hollow cube without a top surface, and a plurality of bearing holes are arranged on both sides of the gear box.

[0005] The power input gear bearing is installed on the corresponding bearing hole of the gear box.

[0006] The power input gear comprises a main body, a gear shaft, a gear hub and gear teeth; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is provided with a power input spline shaft, a bearing mounting shaft body and a large shaft body in sequence, and the diameter of the power input spline shaft is less than the diameter of the bearing mounting shaft body and less than the diameter of the large shaft body; the rear end shaft is provided with a large shaft body and a bearing mounting shaft body in sequence, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the gear hub is a cylinder; the gear teeth are arranged on the side of the gear hub; the teeth are similar to rectangular teeth, and the end of the teeth is arc-shaped; the tooth thickness of the gear teeth is less than the tooth groove width in the corresponding tooth groove.

[0007] The transmission gear bearings are mounted on corresponding bearing holes of the gear box.

[0008] The transmission gear is a double-layer gear, and the main body includes a gear shaft, a gear hub, a power input gear layer, and a power output gear layer; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the gear shaft is provided with a large shaft body and a bearing mounting shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the gear hub is a cylinder; the tooth layer of the power input gear and the tooth layer of the power output gear are arranged on the side of the gear hub; the power input gear layer is a T-shaped tooth similar to a placed one, and the end of the tooth is a cylinder; the tooth thickness of the tooth is smaller than the tooth width in the corresponding tooth groove; the number of teeth of the power output tooth layer is consistent with the number of teeth of the power input tooth layer, the tooth is a rectangular tooth, and the end of the tooth is arc-shaped, and the tooth thickness is smaller than the tooth width in the corresponding tooth groove.

[0009] The power output gear bearing is installed on the corresponding bearing hole of the gear box.

[0010] The power output gear is a single-layer gear, and the main body includes a front end shaft, a flange shaft, a gear hub, and a power input gear layer; the front end shaft and the flange shaft are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is sequentially provided with a bearing mounting shaft body and a large shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the flange shaft is sequentially provided with a large shaft body, a bearing mounting shaft body, and a power output flange, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the flange is not only provided with a spline shaft hole at the center position, but also with a bolt hole matching the flywheel; the gear hub is a cylinder; the power input gear layer is arranged on the side of the gear hub; the teeth of the power input gear layer are T-shaped teeth similar to the teeth, and the end of the teeth is a cylinder; the tooth thickness of the teeth is smaller than the tooth width in the corresponding tooth groove.

[0011] The flywheel is installed on the flange of the power output gear and is provided with bolt holes and spline holes matching the flange.

[0012] The number of teeth of the layer of teeth that the power input gear, the transmission gear and the power output gear can mesh with each other is the same.

[0013] The more transmission gears there are, the greater and smoother the output power.

[0014] The power input gear, transmission gear, and power output gear have the same number of teeth in the meshing tooth layers; therefore, the speed of one rotation of the gears is also the same. When the power input gear rotates one axis, the power output gear also rotates one circle.

[0015] The teeth of the power input gear can engage with the power input tooth layer of the transmission gear, and the power output tooth layer of the transmission gear can engage with the teeth of the power output gear.

[0016] The power is input from the power input gear, passes through the transmission gear, and is finally output from the power output gear.

[0017] The power supply system includes a driving motor, a labor-saving gear transmission mechanism, a generator, an electronic control component, and a battery; The driving motor is connected to the labor-saving gear transmission mechanism, driving the power input gear of the labor-saving gear transmission mechanism to rotate, and finally outputting power at the power output gear; the labor-saving gear transmission mechanism not only has the power input gear connected to the driving motor, but also has the power output gear connected to the generator; The driving motor maintains the rotation speed and increases the power through the labor-saving gear transmission mechanism, thereby driving the generator to rotate; The electronic control component has a group of wire groups connected to the drive motor, a group of wire groups connected to the battery, a group of wire groups connected to the generator, a group of wire groups connected to the cooling system, a group of wire groups connected to the power motor, a group of wire groups connected to the Hall sensor of the power motor, a group of wire groups connected to the power motor speed control controller, a group of wire groups connected to the power motor gear controller, and a group of wire groups connected to the drive motor start switch.

[0018] The electric control component is provided with the function of rectifying and stabilizing the current transmitted from the generator and then distributing it to various electronic components, and is also provided with a port for transmitting current to the outside.

[0019] The cooling system body includes a refrigerant compressor, a drive motor and an evaporator in a generator, an evaporator in an electronic control component, a condenser, a fan, and a temperature sensor.

[0020] The beneficial effect of the present invention is that the power motor can convert electrical energy into mechanical energy 100%, and is highly practical, efficient and environmentally friendly. It is not limited by the limited amount of electricity stored in batteries as power sources and has no safety hazards of spontaneous combustion or explosion. It can be used for a long time and is a safe and efficient way of providing power with a generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a simplified schematic diagram of the present invention Figure 2 This is a simplified diagram of the power input gear. Figure 3 This is a schematic diagram of the power input gear power output gear layer and the transmission gear power output gear layer Figure 4This is a simplified diagram of the transmission gear Figure 5 This is a simplified schematic diagram of the power input gear layer of the transmission gear and the power output gear power input gear layer Figure 6 This is a schematic diagram of the power output gear Figure 7 This is a simplified diagram of power transmission when the power input gear teeth begin to engage the transmission gear. Figure 8 This is a simplified schematic diagram of power transmission when the power input gear teeth and the teeth of the meshing transmission gear are balanced. Fig. 9 This is a simplified diagram of power transmission when the power input gear teeth are about to engage the separation transmission gear. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] The power motor and power supply method of a pure electric drive vehicle mainly includes a power motor, a power supply system, and a cooling system; The power motor described above mainly includes an electric motor and a labor-saving gear transmission mechanism; The power output end of the motor is connected to a labor-saving gear transmission mechanism, and the motor outputs power through the labor-saving gear transmission mechanism; The main body includes a gear box, a power input gear, a transmission gear, a power output gear, a bearing and a flywheel.

[0024] The gear box is a hollow cube without a top surface, and a plurality of bearing holes are arranged on both sides of the gear box.

[0025] The power input gear bearing is installed on the corresponding bearing hole of the gear box.

[0026] The power input gear comprises a main body, a gear shaft, a gear hub and gear teeth; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is provided with a power input spline shaft, a bearing mounting shaft body and a large shaft body in sequence, and the diameter of the power input spline shaft is less than the diameter of the bearing mounting shaft body and less than the diameter of the large shaft body; the rear end shaft is provided with a large shaft body and a bearing mounting shaft body in sequence, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the gear hub is a cylinder; the gear teeth are arranged on the side of the gear hub; the teeth are similar to rectangular teeth, and the end of the teeth is arc-shaped; the tooth thickness of the gear teeth is less than the tooth groove width in the corresponding tooth groove.

[0027] The transmission gears are provided with single-layer gears and double-layer gears, and there are three of them, namely double-layer transmission gear 1, double-layer transmission gear 2, and double-layer transmission gear 3, which are installed on the corresponding bearing holes of the gear box with bearings.

[0028] The double-layer transmission gear 1, double-layer transmission gear 2, and double-layer transmission gear 3, the transmission gear is a double-layer gear, the main body includes a gear shaft, a gear hub, a power input gear layer, and a power output gear layer; the gear shaft is provided with a front end shaft and a rear end shaft, which are respectively arranged at the center positions of the two end faces of the gear hub; the gear shaft is provided with a large shaft body and a bearing mounting shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the gear hub is a cylinder; the tooth layer of the power input gear and the tooth layer of the power output gear are arranged on the side of the gear hub; the tooth of the power input tooth layer is a T-shaped tooth similar to a T-shaped tooth, and the end of the tooth is a cylinder; the tooth thickness of the tooth is smaller than the tooth width in the corresponding tooth groove; the number of teeth of the power output tooth layer is consistent with the number of teeth of the power input tooth layer, the tooth is a rectangular tooth, and the end of the tooth is arc-shaped, and the tooth thickness is smaller than the tooth width in the corresponding tooth groove.

[0029] The power output gear bearing is installed on the corresponding bearing hole of the gear box.

[0030] The power output gear is a single-layer gear, and the main body includes a front end shaft, a flange shaft, a gear hub, and a power input gear layer; the front end shaft and the flange shaft are respectively arranged at the center positions of the two end faces of the gear hub; the front end shaft is sequentially provided with a bearing mounting shaft body and a large shaft body, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the flange shaft is sequentially provided with a large shaft body, a bearing mounting shaft body, and a power output flange, and the diameter of the large shaft body is larger than the diameter of the bearing mounting shaft body; the flange is not only provided with a spline shaft hole at the center position, but also with a bolt hole matching the flywheel; the gear hub is a cylinder; the power input gear layer is arranged on the side of the gear hub; the teeth of the power input gear layer are T-shaped teeth similar to the teeth, and the end of the teeth is a cylinder; the tooth thickness of the teeth is smaller than the tooth width in the corresponding tooth groove.

[0031] The flywheel is installed on the flange of the power output gear and is provided with bolt holes and spline holes matching the flange.

[0032] The number of teeth of the layer of teeth that the power input gear, the transmission gear and the power output gear can mesh with each other is the same.

[0033] The teeth of the power input gear can engage with the teeth of the first transmission gear, the teeth of the transmission gears engage with the teeth of the adjacent transmission gears in sequence, and the teeth of the last transmission gear can engage with the teeth of the power output gear.

[0034] Power is input from the power input gear, passes through the transmission gears, and finally is output from the power output gear.

[0035] To more intuitively reflect the beneficial transmission effect of the present invention, in combination with the attached drawings, the gears are mutually transmitted.

[0036] For more convenience and intuitively reflecting the magnitude and speed of power input and power output, only the transmission of power of the engaging teeth is demonstrated, and the number of teeth of the power input gear, the transmission gears, and the power output gear is the same; Such as Figure 7 As shown, when one tooth of the power output tooth layer of the power input gear rotates to a position where it can engage with one tooth of the power input tooth layer of the double-layer transmission gear 1, this position is the engagement point, which clearly reflects that the torque length of the power input of the power input gear is equal to the torque length of the power output of the power output gear, the resistance arm length on the power output tooth layer of the power input gear is equal to the power arm length on the power input tooth layer of the double-layer transmission gear 1, the resistance arm length on the power output tooth layer of the double-layer transmission gear 1 is less than the power arm length on the power input tooth layer of the double-layer transmission gear 2, the resistance arm length on the power input tooth layer of the double-layer transmission gear 2 is equal to the power arm length on the power input tooth layer of the double-layer transmission gear 3, and the resistance arm length on the power output tooth layer of the double-layer transmission gear 3 is less than the power arm length on the power input tooth layer of the power output gear; Assume: The length of the power arm of the power input gear is A, and the resistance arm is B; the length of the power arm of the double-layer transmission gear 1 is C, and the resistance arm is D; the length of the power arm of the double-layer transmission gear 2 is E, and the resistance arm is F; the length of the power arm of the double-layer transmission gear 3 is G, and the resistance arm is H; the length of the power arm of the power output gear is I, and the resistance arm is J; then A = J, B = C, D < E, F = G, H < I. The total power arm length is A + C + E + G + I, and the total resistance arm length is B + D + F + H + J. For convenience in calculation, the equal power arms and resistance arms are omitted. Since A = J, B = C, F = G, D < E, H < I, therefore E + I > D + H. In summary, the total power arm length is greater than the total resistance arm length, so the output power is greater than the input power.

[0037] Such as Figure 8As shown in the figure, when a tooth of the power output tooth layer of the power input gear rotates to be parallel to a tooth of the power input tooth layer of the double-layer transmission gear 1 in engagement, it also reaches the middle of the distance between the engagement point and the separation point of the tooth engagement, which clearly shows that the moment length of the power input of the power input gear is equal to the moment length of the power output of the power output gear. The length of the resistance arm on the power output tooth layer of the power input gear is less than the length of the power arm on the power input tooth layer of the double-layer transmission gear 1. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 1 is equal to the length of the power arm on the power input tooth layer of the double-layer transmission gear 2. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 2 is less than the length of the power arm on the power input tooth layer of the double-layer transmission gear 3. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 3 is equal to the length of the power arm on the power input tooth layer of the power output gear; Assume that the length of the power arm of the power input gear is A1, and the length of the resistance arm is B1; the length of the power arm of the transmission gear 1 is C1, and the length of the resistance arm is D1; the length of the power arm of the transmission gear 2 is E1, and the length of the resistance arm is F1; the length of the power arm of the transmission gear 3 is G1, and the length of the resistance arm is H1; the length of the power arm of the power output gear is I1, and the length of the resistance arm is J1; then A1 = J1, B1 < C1, D1 = E1, F1 < G1, H1 = I1. The total length of the power arms is A1 + C1 + E1 + G1 + I1, and the total length of the resistance arms is B1 + D1 + F1 + H1 + J1. For the convenience of calculation, the equal power arms and resistance arms are omitted. Since A1 = J1, B1 < C1, D1 = E1, F1 < G1, H1 = I1, then B1 + F1 < C1 + G1. In summary, the total length of the power arms is greater than the total length of the resistance arms. Therefore, the output power is greater than the input power.

[0038] As Fig. 9 As shown in the figure, when a tooth of the power input gear rotates to a position where the tooth of the engaged transmission gear can be separated, this position is the separation point, which clearly shows that the moment length of the power input of the power input gear is equal to the moment length of the power output of the power output gear. The length of the resistance arm on the power output tooth layer of the power input gear is equal to the length of the power arm on the power input tooth layer of the double-layer transmission gear 1. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 1 is less than the length of the power arm on the power input tooth layer of the double-layer transmission gear 2. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 2 is equal to the length of the power arm on the power input tooth layer of the double-layer transmission gear 3. The length of the resistance arm on the power output tooth layer of the double-layer transmission gear 3 is less than the length of the power arm on the power input tooth layer of the power output gear; Assume that the length of the power arm of the power input gear is A2, and the length of the resistance arm is B2; The length of the power arm of the double-layer drive gear 1 is C2, and the length of the resistance arm is D2; the length of the power arm of the double-layer drive gear 2 is E2, and the length of the resistance arm is F2; the length of the power arm of the double-layer drive gear 3 is G2, and the length of the resistance arm is H2; the length of the power arm of the power output gear is I2, and the length of the resistance arm is J2; then A2 = J2, B2 = C2, D2 < E2, F2 = G2, H2 < I2. The total length of the power arm is A2 + C2 + E2 + G2 + I2, and the total length of the resistance arm is B2 + D2 + F2 + H2 + J2. For convenience in calculation, the equal power arms and resistance arms are omitted. Since A2 = J2, B2 = C2, F2 = G2, D2 < E2, H2 < I2, so E2 + I2 > D2 + H2. In summary, the total length of the power arm is greater than the total length of the resistance arm, so the output power is greater than the input power.

[0039] In summary, the more double-layer drive gears, the greater the output power.

[0040] The number of teeth of the tooth layers of the above-mentioned power input gear, drive gears, and power output gear that mesh with each other is the same; therefore, the rotation speed of the gears for one week is also the same. When the power input gear rotates one shaft, the power output gear also rotates one week.

[0041] The important features of the above-mentioned power-saving gear transmission mechanism are: A relatively small power can output a very large power through the above-mentioned power-saving gear transmission mechanism.

[0042] The speed of the power output gear can be not less than the speed of the power input gear.

[0043] According to the two features of the above-mentioned power-saving gear transmission mechanism, a power motor with a relatively small power can output a very large power through the power-saving gear transmission mechanism without reducing the output rotation speed.

[0044] The said drive motor is connected to the power-saving gear transmission mechanism to drive the power input gear of the power-saving gear transmission mechanism to rotate, and finally output power at the power output gear; the said power-saving gear transmission mechanism not only has the power input gear connected to the drive motor, but also the power output gear is connected to the generator; The said drive motor drives the generator to rotate by maintaining the rotation speed and increasing the power through the power-saving gear transmission mechanism; The said electronic control component has a set of wire groups connected to the drive motor, a set of wire groups connected to the battery, a set of wire groups connected to the generator, a set of wire groups connected to the cooling system, a set of wire groups connected to the power motor, a set of wire groups connected to the Hall sensor of the power motor, a set of wire groups connected to the speed control controller of the power motor, a set of wire groups connected to the gear position controller of the power motor, and a set of wire groups connected to the start switch of the drive motor.

[0045] The electric control component is provided with the function of rectifying and stabilizing the current transmitted from the generator and then distributing it to various electronic components, and is also provided with a port for transmitting current to the outside.

[0046] The cooling system body includes a refrigerant compressor, a drive motor and an evaporator in a generator, an evaporator in an electronic control component, a condenser, a fan, and a temperature sensor.

[0047] The power motor, drive motor, generator and electronic control assembly are all provided with condensers.

[0048] According to the two characteristics of the above-mentioned labor-saving gear transmission machinery, a relatively small-power driving motor drives a relatively large-power generator through the labor-saving gear transmission machinery, and the electricity generated by the relatively large power is transmitted to the electronic control component, which rectifies and stabilizes the transmitted current, and then distributes it to various electronic components and external current transmission ports. The electronic control component also has the function of temporarily storing electrical energy; and the driving motor only uses the electricity transmitted to the electronic control component by the battery at the beginning of starting. After the driving motor is started, when the electronic control component detects that there is current transmitted from the generator, it will give priority to using the current transmitted by the generator to work, not only no longer using the battery power, but also when the electronic control component detects that the battery power is reduced to the set value, it will supply power to the battery. Battery charging; when the battery is not used for a long time, the battery power is lost, or the battery is damaged, and the drive motor cannot be started normally, an external power supply can be connected to the corresponding port of the electronic control component to start the drive motor; after starting the drive motor, when the temperature sensor connected to the drive motor by the cooling system reaches a set value, or the temperature sensor connected to the generator reaches a set value, the temperature of the temperature sensor in the electronic control component reaches a set value, or the temperature of the temperature sensor in the power motor reaches a set value, the compressor is started to cool the drive motor or generator and the electronic control component, and the power output drive motor. The cooling system can also cool the drive motor or generator, the electronic control component and the power output drive motor separately.

[0049] The invention has a simple and reasonable structure and a wide application range, and can well solve the problem that when a battery is used as a power source for an electric vehicle, the use time is short and the charging often relies on an external power source.

[0050] The above are merely preferred embodiments for illustration, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall fall within the protection scope of the present invention.

Claims

1. A power motor and power supply method for a pure electric vehicle, characterized in that: The main body includes a power motor, a power supply system, and a cooling system; The power motor described above mainly includes an electric motor and a labor-saving gear transmission mechanism; The power output end of the motor is connected to a labor-saving gear transmission mechanism, and the motor outputs power through the labor-saving gear transmission mechanism; The electric motor is provided with a Hall sensor; The power supply system includes a driving motor, a labor-saving gear transmission mechanism, a generator, an electronic control component, and a battery; The driving motor is connected to the labor-saving gear transmission mechanism, driving the power input gear of the labor-saving gear transmission mechanism to rotate, and finally outputting power at the power output gear; the labor-saving gear transmission mechanism not only has the power input gear connected to the driving motor, but also has the power output gear connected to the generator; The driving motor maintains the rotation speed and increases the power through the labor-saving gear transmission mechanism, thereby driving the generator to rotate; The electronic control component has a group of wires connected to the drive motor, a group of wires connected to the battery, a group of wires connected to the generator, a group of wires connected to the cooling system, a group of wires connected to the power motor, a group of wires connected to the Hall sensor of the power motor, a group of wires connected to the power motor speed control controller, a group of wires connected to the power motor gear controller, and a group of wires connected to the drive motor start switch; the electronic control component is provided with the function of rectifying and stabilizing the current transmitted from the generator and then distributing it to various electronic components, and is also provided with a port for transmitting current to the outside; the cooling system body includes a refrigerant compressor, an evaporator in the drive motor and the generator, an evaporator in the electronic control component, a condenser, a fan, and a temperature sensor.

2. According to claim 1, the power motor and power supply method of a pure electric drive vehicle is characterized in that: A relatively small power can output a very large power through the above-mentioned labor-saving gear transmission machinery, and the speed of the power output gear of the labor-saving gear transmission machinery can be no less than the speed of the power input gear.

3. According to claim 1, the power motor and power supply method of a pure electric drive vehicle is characterized in that: A relatively small-power drive motor drives a relatively large-power generator through a labor-saving gear transmission mechanism. The electricity generated by the relatively large-power generator is transmitted to the electronic control component. The electronic control component rectifies and stabilizes the transmitted current, and then distributes it to various electronic components and external current transmission ports.

4. According to claim 1, the power motor and power supply method of a pure electric drive vehicle is characterized in that: The electronic control components have the function of temporarily storing electrical energy.

5. According to claim 1, the power motor and power supply method of a pure electric drive vehicle is characterized in that: The drive motor uses the electricity supplied by the battery to the electronic control component only when it starts. After the drive motor starts, when the electronic control component detects that the generator is supplying current, it will give priority to using the current supplied by the generator. Not only will it no longer use the battery power, but when the electronic control component detects that the battery power level has dropped to a set value, it will charge the battery.

6. According to claim 1, the power motor and power supply method of a pure electric drive vehicle is characterized in that: The cooling system body includes a refrigerant compressor, a drive motor and an evaporator in a generator, an evaporator in an electronic control component, a condenser, a fan, and a temperature sensor.

7. According to claim 1, the power motor and power supply method of a pure electric drive vehicle is characterized in that: The power motor, drive motor, generator and electronic control assembly are all provided with condensers.

8. According to claim 1, the power motor and power supply method of a pure electric drive vehicle is characterized in that: After starting the drive motor, when the temperature sensor connected to the drive motor by the cooling system reaches a set value, or the temperature sensor connected to the generator reaches a set value, the temperature of the temperature sensor in the electronic control component reaches a set value, or the temperature of the temperature sensor in the power motor reaches a set value, the compressor is started to cool the drive motor or generator and the electronic control component, and the power output drive motor. The cooling system can also cool the drive motor or generator, the electronic control component and the power output drive motor separately.

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