Thermal management system and electric motorcycle using same

Abstract

The invention discloses a thermal management system and an electric motorcycle using the same. The thermal management system comprises a motor cooling loop, and the motor cooling loop is communicated with a driving motor; the battery temperature adjusting loop is communicated with a power battery; the temperature adjusting device is respectively communicated with the battery temperature adjusting loop and the motor cooling loop; the motor cooling loop and the battery temperature adjusting loop are mutually independent, and when the temperature adjusting device heats the battery temperature adjusting loop, the temperature adjusting device refrigerates the motor cooling loop; and when the temperature adjusting device refrigerates the battery temperature adjusting loop, the temperature adjusting device heats the motor cooling loop. The thermal management system can effectively regulate and control the temperature of the power battery in the compact layout space of the electric motorcycle.

Description

Technical Field

[0001] The invention relates to a thermal management system and an electric motorcycle using the same. Background Art

[0002] With the sweep of new energy forces in the field of two-wheeled vehicles, competitive motorcycles are gradually moving towards the trend of electrification. However, as electric motorcycles have higher power output requirements, they have higher requirements for temperature control of battery components. Therefore, it is also necessary to set up a temperature control system for the battery components of electric motorcycles to ensure the stable performance of the battery components on electric motorcycles.

[0003] However, the traditional temperature control system generally needs to be equipped with a heater for heating and a compressor for cooling, which is undoubtedly a huge challenge for electric motorcycles with very limited layout space. Therefore, how to achieve temperature control of the battery assembly of an electric motorcycle through components with small volume and space occupation is a problem that technicians in this field need to solve. Summary of the invention

[0004] In order to solve the deficiencies of the prior art, an object of the present invention is to provide a compact thermal management system and an electric motorcycle equipped with the system.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A thermal management system includes a motor cooling circuit, the motor cooling circuit is connected to a drive motor; a battery temperature control circuit, the battery temperature control circuit is connected to a power battery; a temperature control device, the temperature control device is connected to the battery temperature control circuit and the motor cooling circuit respectively; the motor cooling circuit and the battery temperature control circuit are independent of each other, when the temperature control device heats the battery temperature control circuit, the temperature control device cools the motor cooling circuit; when the temperature control device cools the battery temperature control circuit, the temperature control device heats the motor cooling circuit.

[0007] Furthermore, water pumps are provided on both the battery temperature control circuit and the motor cooling circuit, and the water pumps are used to circulate the coolant in the battery temperature control circuit and the motor cooling circuit in the battery temperature control circuit.

[0008] Furthermore, a radiator is also provided on the motor cooling circuit.

[0009] Furthermore, the thermal management system also includes a power supply, and the temperature control device and the water pump are electrically connected to the power supply; a control switch is also arranged between the power supply and the temperature control device, and the control switch includes forward opening, reverse opening and closing states. When the control switch is forward opened, the temperature control device cools the battery temperature control circuit, and the temperature control device heats the motor cooling circuit; when the control switch is reversely opened, the temperature control device heats the battery temperature control circuit, and the temperature control device cools the motor cooling circuit.

[0010] A thermal management system includes a motor cooling circuit, the motor cooling circuit is connected to a drive motor; a battery temperature control circuit, the battery temperature control circuit is connected to a power battery; a temperature control device, the temperature control device is respectively connected to the battery temperature control circuit and the motor cooling circuit; the temperature control device also includes a refrigeration chip, the refrigeration chip includes a first side and a second side arranged opposite to each other, the battery temperature control circuit is at least partially arranged on the first side, and the motor cooling circuit is at least partially arranged on the second side, the thermal management system also includes a power supply, and the refrigeration chip is electrically connected to the power supply; when the refrigeration chip is connected to the power supply in a forward direction, the first side is cooled and the second side is heated, and when the refrigeration chip is connected to the power supply in a reverse direction, the first side is heated and the second side is cooled.

[0011] An electric motorcycle comprises a frame; a body covering, which is at least partially arranged on the frame; a running assembly, which is at least partially arranged under the frame; a motor assembly, which comprises a drive motor and a motor cooling flow path for cooling the drive motor; a battery assembly, which comprises a power battery and a battery temperature control flow path for regulating the temperature of the power battery; the electric all-terrain vehicle also comprises a temperature control device, which comprises a refrigeration chip, which comprises a first side and a second side arranged oppositely, and the temperature control device comprises a first flow path arranged on the first side and a second flow path arranged on the second side, the first flow path is connected with the battery temperature control flow path to form a battery temperature control circuit, and the second flow path is connected with the motor cooling flow path to form a motor cooling circuit.

[0012] Furthermore, the electric motorcycle also includes a battery, and water pumps are provided on the motor temperature control circuit and the motor cooling circuit, and the water pump and the refrigeration chip are electrically connected to the battery; a control switch is also provided between the refrigeration chip and the battery, and the control switch includes forward opening, reverse opening and closing states. When the control switch is in the on state, the first side is cooled and the second side is heated; when the control switch is reversely opened, the first side is heated and the second side is cooled, and when the control switch is closed, the battery is disconnected from the refrigeration chip.

[0013] Furthermore, when the temperature of the power battery is greater than a first threshold, the control switch is turned on in the forward direction, and the first side cools the battery temperature control circuit until the temperature of the power battery is less than the first threshold; when the temperature of the power battery is less than a second threshold, the control switch is turned on in the reverse direction, and the first side heats the battery temperature control circuit until the temperature of the power battery is greater than the second threshold.

[0014] Further, when the power battery temperature is less than the first threshold and greater than the second threshold, the control switch is closed.

[0015] Furthermore, when the control switch is in the forward opening or reverse opening state, the water pump is in the on state.

[0016] The present application sets up a chip heat dissipation device, a battery temperature control circuit and a motor cooling circuit. The temperature control device can simultaneously realize the heating and cooling functions of the battery assembly. At the same time, the low temperature generated when the temperature control device heats the battery temperature control circuit can cool the battery cooling circuit. The heat generated when the temperature control device cools the battery temperature control circuit can also be absorbed by the motor cooling circuit. This thermal management system occupies a small space, has a compact structure and a good temperature control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a side view of the electric motorcycle of the present application;

[0018] Figure 2 is a schematic diagram of the thermal management system in this application;

[0019] Figure 3 It is a working principle diagram of the refrigeration chip in this application;

[0020] Figure 4 It is the circuit and communication connection diagram of the thermal management system in this application;

[0021] Figure 5A It is a schematic diagram of the control switch opening in the forward direction;

[0022] Figure 5B It is a schematic diagram of the control switch opening in reverse;

[0023] Figure 6 It is a schematic diagram of the working logic of the thermal management system;

[0024] Figure 7 It is a three-dimensional diagram of the temperature control device;

[0025] Figure 8 This is an exploded view of a temperature control device where the cooling chips are laid out flat along a horizontal plane;

[0026] Fig. 9 It is a cross-sectional view of a temperature regulating device in which the refrigeration chips are stacked in the height direction;

[0027] Fig.10 It is a side view of a thermostat on an electric motorcycle. DETAILED DESCRIPTION

[0028] In order to clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the content described below is only one embodiment of the present invention. For ordinary technicians in this field, all other embodiments obtained without creative work are within the protection scope of the present invention.

[0029] Figure 1 An electric motorcycle 100 is shown, which includes a frame 11, a body cover 12, a running assembly 13, a motor assembly 14, a battery assembly 15 and a control assembly 16. The frame 11 constitutes the basic framework of the electric motorcycle 100, the battery assembly 15, the motor assembly 14 and the control assembly 16 are at least partially arranged on the frame 11 and supported by the frame 11, and the running assembly 13 is at least partially arranged under the frame 11 and forms a rotational connection with the frame 11. The body cover 12 is configured to at least partially cover the motor assembly 14, the battery assembly 15 and the control assembly 16, and is used to waterproof the motor assembly 14, the battery assembly 15 and the control assembly 16 and other electrical components.

[0030] like Figures 1 to 3 As shown, the electric motorcycle 100 also includes a temperature control device 17, which includes a cooling chip 171 for cooling. The cooling chip 171 is a sheet structure, and the cooling chip 171 includes a first side 1711 and a second side 1712, and the first side 1711 and the second side 1712 are substantially parallel. The cooling chip 171 in the present application is set as a chip made of a semiconductor material. Therefore, when the cooling chip 171 is connected to a current in a preset direction D1, due to the thermoelectric effect between the semiconductor materials, a temperature difference will be generated between the first side 1711 and the second side 1712, that is, the temperature of the first side 1711 decreases, and the temperature of the second side 1712 increases. Correspondingly, when the current direction is changed, that is, the current is connected in the direction opposite to the preset direction D1, the temperature of the first side 1711 increases, and the temperature of the second side 1712 decreases.

[0031] like Figure 3As shown, the temperature regulating device 17 also includes a first flow path 173 and a second flow path 174 for the coolant 172 to flow, and the first flow path 173 and the second flow path 174 are set to be two independent flow paths that are not connected to each other. The temperature regulating device 17 also includes a shell 175, and the first flow path 173 includes a first outlet 1731 and a first inlet 1732 set thereon, and the first outlet 1731 and the first inlet 1732 are respectively located at the two ends of the first flow path 173, and other external pipes can be connected to the first flow path 173 by respectively connecting to the first outlet 1731 and the first outlet 1731. Correspondingly, the second flow path 174 includes a second outlet 1741 and a second inlet 1742 set on the shell 175, and the second outlet 1741 and the second inlet 1742 are respectively located at the two ends of the second flow path 174, and other external pipes can be connected to the second flow path 174 by respectively connecting to the second outlet 1741 and the second outlet 1741. As a specific implementation, the first flow path 173 is arranged on the first side 1711 of the refrigeration chip 171, and the second flow path 174 is arranged on the second side 1712 of the refrigeration chip 171, that is, when the refrigeration chip 171 is connected to the current along the preset direction D1, the temperature of the first side 1711 decreases, thereby cooling the cooling liquid 172 in the first flow path 173, and at the same time, the temperature of the second side 1712 increases, and the cooling liquid 172 in the second flow path 174 is heated. It can be understood that when the refrigeration chip 171 is connected to the current along the direction opposite to the preset direction D1, the temperature of the first side 1711 increases, thereby heating the cooling liquid 172 in the first flow path 173, and at the same time, the temperature of the second side 1712 decreases, and the cooling liquid 172 in the second flow path 174 is cooled.

[0032] like Figure 2As shown, the motor assembly 14 includes a drive motor 141 and a motor cooling flow path 142 for cooling the drive motor 141. The motor cooling flow path 142 allows the coolant 172 to circulate, so as to continuously transfer the heat generated by the drive motor 141 during operation. Specifically, a radiator 143 is also provided on the motor cooling flow path 142, which is used to cool the temperature of the coolant 172 in the motor cooling flow path 142, that is, after the heat generated by the operation of the motor assembly 14 is transferred by the coolant 172, the radiator 143 performs heat dissipation operation to ensure that the temperature of the drive motor 141 during operation is always maintained in a suitable working range. Correspondingly, the battery assembly 15 includes a power battery 151 and a battery temperature control flow path 152 for dissipating heat from the power battery 151. As an optional implementation, the battery temperature control flow path 152 is configured to be connected to the first flow path 173, that is, one end of the battery temperature control flow path 152 is connected to the first inlet 1732, and the other end of the battery temperature control flow path 152 is connected to the first outlet 1731, so that a closed loop is formed between the first flow path 173 and the battery temperature control flow path 152. Further, the motor cooling flow path 142 and the second flow path 174 are configured to be connected, that is, one end of the motor cooling flow path 142 is connected to the second outlet 1741, and the other end of the motor cooling flow path 142 is connected to the second inlet 1742, so that the motor cooling flow path 142 and the second flow path 174 form a closed loop. For ease of description, in this application, the loop formed by the connection of the battery temperature control flow path 152 and the first flow path 173 is referred to as the battery temperature control loop R1, and the loop formed by the connection of the motor cooling flow path 142 and the second flow path 174 is referred to as the motor cooling loop R2. As an optional implementation, a water pump 153 is provided on the battery temperature control loop R1 to pressurize the coolant 172 in the battery temperature control loop R1, so that the liquid in the battery temperature control loop R1 circulates in one direction to transfer the heat generated by the power battery 151 during operation. Correspondingly, a water pump 144 is also provided on the motor cooling loop R2 to pressurize the coolant 172 in the motor cooling loop R2 to transfer the heat generated by the power battery 151.

[0033] When the temperature of the power battery 151 is too high during operation, the temperature of the coolant 172 in the battery temperature control flow path 152 increases. At this time, the current is connected to the refrigeration chip 171 along the preset direction D1, the temperature of the first side 1711 of the refrigeration chip 171 decreases, and the temperature of the coolant 172 in the first flow path 173 is cooled down. At the same time, the water pump 153 set on the battery temperature control loop R1 is turned on. The coolant 172 in the first flow path 173 circulates in the battery temperature control loop R1, and the high-temperature coolant 172 in the battery temperature control flow path 152 is cooled in the first flow path 173 and then enters the battery temperature control flow path 152 again. This cycle is repeated to effectively cool the high temperature generated by the power battery 151. As mentioned above, based on the properties of the refrigeration chip 171 itself, when the temperature of the first side 1711 decreases, the temperature of the second side 1712 increases accordingly, thereby causing the temperature of the coolant 172 in the second flow path 174 to increase. At this time, the water pump 144 located on the motor cooling flow path 142 is started, so that the heated coolant 172 in the second flow path 174 flows through the radiator 143 along with the water circulation of the motor cooling flow path 142, and after being cooled at the outlet of the radiator 143, the heat generated at the second side 1712 is cooled again.

[0034] When the operating temperature of the power battery 151 is too low, it is only necessary to apply a current opposite to the preset direction D1 to the cooling chip 171 and start the water pump 153. At this time, the temperature of the first side 1711 rises, and as the battery temperature control loop R1 circulates, the temperature generated by the first side 1711 can continuously heat the power battery 151 with the flow of the coolant 172, so that the power battery 151 can quickly rise to a suitable temperature. It can be understood that, correspondingly, at this time, the temperature of the second side 1712 decreases, and the coolant 172 with a reduced temperature in the second flow path 174 circulates with the motor cooling loop R2 to continuously cool the drive motor 141.

[0035] Through the above description, it can be concluded that the present application provides a thermal management system H1, specifically, the present application provides a thermal management system H1 applied to an electric motorcycle 100. The thermal management system H1 includes a temperature control device 17, a motor cooling circuit R2 flowing through a drive motor 141 and the temperature control device 17, and a battery temperature control circuit R1 flowing through a power battery 151 and the temperature control device 17. Specifically, the thermal management system H1 also includes a water pump 144 and a radiator 143 arranged on the motor cooling circuit R2, and a water pump 153 arranged on the battery temperature control circuit R1. When the battery temperature is too high due to long-term operation, a current flowing in a preset direction D1 is connected to the cooling chip 171 in the temperature control device 17, and the water pump is started at the same time. The temperature of the coolant 172 in the battery temperature control circuit R1 is cooled down by the characteristics of the cooling chip 171, and the heat generated by the cooling chip 171 is transferred to the radiator 143 by the liquid circulation in the motor cooling circuit R2 for heat dissipation. When the temperature of the power battery 151 is too low during the startup process, a current opposite to the preset direction D1 is connected to the cooling chip 171 and the water pump is started, and the temperature of the coolant 172 in the battery temperature control circuit R1 begins to heat up based on the characteristics of the cooling chip 171, thereby heating the power battery 151. Correspondingly, the temperature control circuit of the drive motor 141 absorbs the low temperature generated by the cooling chip 171, avoids heat accumulation or cold accumulation around the cooling chip 171, and keeps the cooling chip 171 at a suitable working temperature. This thermal management system H1 enables the electric motorcycle 100 in this application to reduce and increase the temperature of the power battery 151 at the same time without separately setting a compressor and a heater, and further, the heat generated by the temperature control device 17 itself can be dissipated through the cooling circuit of the motor assembly 14 of the electric motorcycle 100 itself. Of course, the low temperature generated by the cooling chip 171 can be absorbed by the cooling system of the motor assembly 14, and to some extent, the low temperature generated by the temperature control device 17 can further increase the heat dissipation efficiency of the motorcycle's drive motor 141.

[0036] like Figure 2 As shown, as an optional implementation, the motor assembly 14 further includes a motor controller 145 , and the motor controller 145 is disposed on the motor cooling circuit R2 , that is, the motor cooling circuit R2 performs heat dissipation operations for the drive motor 141 and the motor controller 145 at the same time.

[0037] like Figure 4As shown in FIG. 5 , the electric motorcycle 100 further includes an electrical component 18, and the electrical component 18 further includes a battery 181 for powering a low-voltage electrical appliance. The temperature regulating device 17 is electrically connected to the battery 181, and the battery 181 powers the temperature regulating device 17. The temperature regulating device 17 further includes a control switch 176, which is arranged between the battery 181 and the temperature regulating device 17, and is electrically connected to the battery 181 and the temperature regulating device 17, respectively. The control switch 176 can be used to convert the transmission direction of the current to the inside of the temperature regulating device 17, that is, the control switch 176 includes three modes: closed, forward opening, and reverse opening. In the present application, when the control switch 176 is set to forward opening, the first side 1711 of the refrigeration chip 171 performs a refrigeration operation to cool the power battery 151, and the second side 1712 generates heat. On the contrary, when the control switch 176 is reversely turned on, the first side 1711 of the cooling chip 171 heats the power battery 151, and the second side 1712 cools. It can be understood that in the present application, the battery 181 is the main power source of the thermal management system H1, which is used to provide energy for the operation of the thermal management system H1. In other embodiments, the power source of the temperature control device 17 can also be set to other sources, such as power batteries, other external power sources or even the national power grid, as long as the current can be connected to the cooling core 171 in the temperature control device 17, it falls within the inventive concept of the present application.

[0038] like Figure 4 As shown, the control component 16 includes a vehicle controller 161 for vehicle data monitoring, and the vehicle controller 161 is set to be connected to the control switch 176 for communication or electrical connection, and is used to issue a control instruction to the control switch 176, so that the control switch 176 is turned on in the forward direction, turned on in the reverse direction, or is in a closed state at the corresponding time. Further, the vehicle controller 161 is also set to be connected to the water pump 153 provided on the battery temperature control circuit R1 for communication or electrical connection, and is used to control the opening or closing of the water pump 153. Further, the water pump 144 provided on the motor cooling circuit R2 is set to be connected to the motor controller 145 for communication or electrical connection, and is used to control the opening and closing of the water pump 144 on the motor cooling circuit R2. It can be seen that in the battery temperature control circuit R1, the opening of the temperature control device 17 and the water pump 153 is controlled by the vehicle controller 161, and the opening and closing of the motor cooling circuit R2 is controlled by the motor controller 145, that is, the two circulating water circuits of the thermal management system H1 in this application are controlled by different controllers.

[0039] As another optional implementation, the control switch 176 and the water pump 153 provided on the battery temperature control loop R1 can both be configured to be communicatively connected or electrically connected to the motor controller 145, that is, the battery temperature control loop R1 and the motor cooling loop R2 are both controlled by the motor controller 145. This configuration can make the wiring harness connection between the related components simpler, and when it is necessary to set the opening and closing logic between the three components, it is simpler, and only the internal software of the motor controller 145 needs to be set, and no other hardware needs to be set.

[0040] In the present application, the electric motorcycle 100 provided in the present application is a competitive off-road electric motorcycle 100. In order to further save the layout space of the whole vehicle, the functions of the whole vehicle controller 161 and the motor controller 145 are integrated into the motor controller 145, that is, the motor controller 145 in the present application has the functions of both the whole vehicle operation control and the drive motor 141 operation control, that is, in terms of hardware connection, the battery temperature control circuit R1 is shown as a communication connection or electrical connection with the motor controller 145, but in fact, the battery temperature control circuit R1 is controlled by the whole vehicle control module in the integrated controller. Therefore, in the description of the present application, the water pump 153 and the temperature control device 17 on the battery temperature control circuit R1 are set to be respectively communicated or electrically connected with the whole vehicle controller 161, and the whole vehicle controller 161 issues a controller instruction to the battery cooling circuit. It can be understood that in other embodiments, the water pump 144 on the motor cooling circuit R2, the water pump 153 set on the battery temperature control circuit R1, and the control switch 176 can also be set to be all communicated with the whole vehicle controller 161 to realize the control of the above components by the whole vehicle controller 161.

[0041] It should be noted that, due to the characteristics of the thermostat 17, when the thermostat 17 is in working state, in order to avoid cold accumulation or heat accumulation of the thermostat 17, the water pump 144 on the motor cooling circuit R2 and the water pump 153 on the battery temperature control circuit R1 must be in working state. Further, in order to avoid heat accumulation and cold accumulation in the first flow path 173 and the second flow path 174 in the gap between the thermostat 17 being turned on and the water pump being turned on, it is necessary to ensure that the thermostat 17 is started only after the water pump is turned on. The vehicle controller 161 can be set with a corresponding program to ensure the correct implementation of the above logic. It can be understood that regardless of whether the thermostat 17 is started or not, the water pump 153 on the battery temperature control circuit R1 can be turned on. When the thermostat 17 is in the off state, turning on the water pump 153 on the battery temperature control circuit R1 can effectively adjust the temperature of various parts of the power battery 151 to prevent local overheating or overcooling. Of course, the control logic can also be set to turn on the water pump 153 on the battery temperature control water path only when the thermostat 17 needs to be started. In the present application, the water pump 144 on the motor cooling circuit R2 is set to be turned on according to the operating state of the battery regardless of whether the thermostat 17 is turned on during the operation of the vehicle. In addition, it should be emphasized that the operation of the motor cooling circuit R2 is mainly determined by the temperature of the drive motor 141 and the motor controller 145 in addition to the opening state of the thermostat 17. When the temperature of the drive motor 141 or the controller of the drive motor 141 is too high, the motor controller 145 will issue a working instruction to the water pump and radiator 143 on the motor cooling circuit R2 to put the motor cooling circuit R2 in a working state, and the issuance of the instruction is not affected by the working state of the battery thermostat circuit R1 or the thermostat 17.

[0042] like Figure 4 and Figure 6 As shown, the battery assembly 15 also includes a temperature sensor 154 disposed on the power battery 151. The temperature sensor 154 is used to detect the operating temperature of the power battery 151 and can transmit temperature parameters back to the vehicle controller 161 so that the vehicle controller 161 can make corresponding instructions to the thermal management system H1. In order to further illustrate the control logic of the thermal management system H1 provided in the embodiment of the present application, the thermal management system H1 provided in the embodiment of the present application will be described in combination with a specific method of use.

[0043] S101 , determining whether the temperature of the power battery is greater than a first threshold, if so, proceeding to step S102 , if so, proceeding to step 107 .

[0044] S102: Turn on the water pump.

[0045] S103, control the switch to open in the forward direction.

[0046] S104 , detecting whether the battery temperature is less than a first threshold, if not, returning to step 102 , if yes, proceeding to step 105 .

[0047] S105 , detecting whether the temperature of the power battery is less than a second threshold, if not, proceeding to step S106 , if yes, proceeding to step S108 .

[0048] S106, control switch to turn off.

[0049] S107, detecting whether the battery temperature is less than a second threshold, if not, proceeding to step S109, if yes, executing step S108.

[0050] S108, start the water pump.

[0051] S109, control the switch to open in reverse.

[0052] S110, determine whether the temperature of the power battery is greater than a second threshold, if yes, proceed to step S106, if no, return to step S108.

[0053] As an optional implementation, in the present application, the first threshold is greater than or equal to 20°C and less than or equal to 40°C, the second threshold is greater than or equal to negative 0°C and equal to 10°C. Specifically, the first threshold can be set to 25°C, 30°C or 35°C, and the second threshold can be set to any one of negative 5°C, 0°C or 5°C.

[0054] like Figures 7 and 8 As shown, the temperature regulating device 17 is composed of a plurality of refrigeration chips 171, and the combination of the refrigeration chips 171 includes a combination of horizontal tiling and height direction superposition. It should be explained here that in the present application, the "horizontal plane" described in the combination of the refrigeration chips 171 refers to the extension plane of the first side 1711 or the second side 1712, and the "height direction" described in the combination of the refrigeration chips 171 refers to the direction perpendicular to the first side 1711 or the second side 1712. The temperature regulating device 17 also includes a heat conducting plate 177 for heat exchange with the refrigeration chip 171, and a continuous channel is provided in the heat conducting plate 177 for the circulation of the coolant 172. The heat conducting plate 177 is provided with at least two and is respectively distributed on the first side 1711 and the second side 1712 of the refrigeration chip 171. The channels inside the heat conducting plate 177 distributed on the first side 1711 form the first flow path 173 after being connected, and the channels inside the heat conducting plate 177 distributed on the second side 1712 form the second flow path 174 after being connected.

[0055] like Figure 8As shown, as a possible implementation, the refrigeration chips 171 are combined in a direction of extending and paving along a horizontal plane, that is, the sides of each refrigeration chip 171 are abutted or connected, and the first side 1711 and the second side 1712 of each refrigeration chip 171 are respectively facing the same side. Further, the first side 1711 and the second side 1712 of each refrigeration chip 171 are respectively paved with a heat conducting plate 177, and the channels inside the heat conducting plate 177 arranged on the first side 1711 are all arranged to be connected, and the channels inside the heat conducting plate 177 on the first side 1711 form a first flow path 173, and the channels inside the heat conducting plate 177 arranged on the second side 1712 are also arranged to flow to form a second flow path 174. The first flow path 173 is connected to the battery temperature control circuit R1 inside the battery assembly 15 through the first outlet 1731 and the first inlet 1732 provided on the shell 175, and the second flow path 174 is connected to the heat dissipation circuit of the drive motor 141 in the motor assembly 14 through the second outlet 1741 and the second inlet 1742 provided on the shell 175. This arrangement can effectively increase the cooling or heating area, and only a large heat conducting plate 177 is required to realize the collection of the entire first flow path 173 or the second flow path 174, without the need to set other pipelines for communication, and the arrangement of the large area heat conducting plate 177 can also enable the heat conducting plate 177 to achieve rapid heat dissipation by utilizing its large contact area with the air.

[0056] like Fig. 9 As shown, as another optional implementation, the refrigeration chips 171 are combined in a stacked manner along the height direction, that is, multiple refrigeration chips 171 are stacked along the height direction. When the refrigeration chips 171 are arranged to be stacked along the height direction, the first side 1711 of the adjacent refrigeration chips 171 is arranged opposite to the first side 1711, and the second side 1712 is arranged opposite to the second side 1712, and a heat conducting plate 177 is arranged between each refrigeration chip 171. Further, the heat conducting plates 177 arranged on the first side 1711 are connected to the internal channels through the pipeline 1771 to form the first flow path 173, and the heat conducting plates 177 arranged on the second side 1712 are connected to the internal channels through the pipeline 1771 to form the second flow path 174. This arrangement can effectively achieve effective control of the volume of the temperature regulating device 17, so that the temperature regulating device 17 occupies a smaller area and can be fixed according to the layout requirements of the electric motorcycle 100.

[0057] Optionally, the refrigeration chips 171 extending along the horizontal plane are connected by side surfaces, and the refrigeration chip 171 and the heat exchange plate are connected by the first side surface 1711 or the second side surface 1712. Specifically, the refrigeration chips 171 and the refrigeration chip 171 and the heat exchange plate are fixedly connected by gluing. Also, the refrigeration chip 171 and the heat exchange plate can also be fixedly connected to the shell by gluing, respectively. It can be understood that the refrigeration chip 171 and the heat exchange plate, the refrigeration chip 171 and the refrigeration chip 171, the refrigeration chip 171 and the shell, and the heat exchange plate and the shell can also be fixedly connected by other means. The shell can effectively store and protect the wiring harness of the electrical connection between the refrigeration chips 171 and the connecting pipes between the heat exchange plates, so as to ensure the overall strength and safety of the temperature control device 17.

[0058] It can be understood that the stacking method of the refrigeration chips 171 can also be set to a combination of two methods: tiling along the horizontal plane and stacking along the height direction. That is, the single-layer refrigeration chips 171 are laid flat along the horizontal plane to form a refrigeration module, and then multiple refrigeration modules are overlapped along the height direction. This setting method can enable the temperature control device 17 to have a stronger heat dissipation capacity and can meet the heat dissipation requirements of large vehicles such as all-terrain vehicles and even passenger cars. And, regardless of the above connection method, the refrigeration chips 171 are connected through the wiring harness 178. In this application, multiple refrigeration chips 171 are connected in parallel through the wiring harness 178, and then the wiring harness 178 is aggregated to form a bus harness connector 1781 to achieve circuit connection with the battery 181. Of course, in other embodiments, the refrigeration chips 171 can also be set in series through the wiring harness 178.

[0059] In this application, if Fig.10 As shown, the frame 11 is formed around a storage space S1, and the drive motor 141 and the power battery 151 are both arranged in the storage space S1 formed by the frame 11. Specifically, the power battery 151 is at least partially arranged above the drive motor 141. As an optional embodiment, the thermostat 17 can be arranged in the storage space S1. This arrangement can provide the thermostat 17 with sufficient installation and fixing space, and the frame 11 can also be used to effectively protect the thermostat 17 to avoid bumps during riding. Specifically, the thermostat 17 can also be arranged between the power battery 151 and the drive motor 141. This arrangement can shorten the length of the pipe connection and the wiring harness 178 connection between the drive motor 141, the thermostat 17 and the power battery 151 as much as possible, which can effectively reduce the installation cost and material cost. It can be understood that the thermostat 17 can also be arranged at other positions according to the actual use requirements of the vehicle.

[0060] It needs to be explained that the present application includes a water pump arranged on the motor cooling circuit R2 and a water pump arranged on the battery temperature control circuit R1. When expressions such as "turn on the water pump" or "turn off the water pump" appear in the present application without special numbering or description of the water pump location, it means that the two water pumps are turned on synchronously, and the order in which the two water pumps are turned on is not restricted.

[0061] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A thermal management system, comprising: A motor cooling circuit, wherein the motor cooling circuit is connected to a drive motor; A battery temperature regulating circuit, wherein the battery temperature regulating circuit is connected to a power battery; A temperature regulating device, the temperature regulating device is connected to the battery temperature regulating circuit and the motor cooling circuit respectively; It is characterized in that The motor cooling circuit and the battery temperature control circuit are independent of each other. When the temperature control device heats the battery temperature control circuit, the temperature control device cools the motor cooling circuit; when the temperature control device cools the battery temperature control circuit, the temperature control device heats the motor cooling circuit.

2. The thermal management system according to claim 1, It is characterized in that The battery temperature control circuit and the motor cooling circuit are both provided with water pumps, and the water pumps are used to circulate the coolant in the battery temperature control circuit and the motor cooling circuit in the battery temperature control circuit.

3. The thermal management system according to claim 1, It is characterized in that A radiator is also provided on the motor cooling circuit.

4. The thermal management system according to claim 2, It is characterized in that The thermal management system also includes a power supply, and the temperature control device and the water pump are electrically connected to the power supply; a control switch is also arranged between the power supply and the temperature control device, and the control switch includes forward opening, reverse opening and closing states. When the control switch is forward opened, the temperature control device cools the battery temperature control circuit and heats the motor cooling circuit; when the control switch is reversely opened, the temperature control device heats the battery temperature control circuit and cools the motor cooling circuit.

5. A thermal management system comprising: A motor cooling circuit, wherein the motor cooling circuit is connected to a drive motor; A battery temperature regulating circuit, wherein the battery temperature regulating circuit is connected to a power battery; A temperature regulating device, the temperature regulating device is connected to the battery temperature regulating circuit and the motor cooling circuit respectively; It is characterized in that The temperature control device also includes a refrigeration chip, the refrigeration chip includes a first side and a second side arranged opposite to each other, the battery temperature control circuit is at least partially arranged on the first side, and the motor cooling circuit is at least partially arranged on the second side. The thermal management system also includes a power supply, and the refrigeration chip is electrically connected to the power supply; when the refrigeration chip is connected to the power supply in a forward direction, the first side is cooled and the second side is heated, and when the refrigeration chip is connected to the power supply in a reverse direction, the first side is heated and the second side is cooled.

6. An electric motorcycle comprising: Frame; a body covering, the body covering being at least partially disposed on the vehicle frame; A traveling assembly, wherein the traveling assembly is at least partially disposed below the vehicle frame; A motor assembly, the motor assembly comprising a drive motor and a motor cooling flow path for cooling the drive motor; A battery assembly, the battery assembly comprising a power battery and a battery temperature control flow path for regulating the temperature of the power battery; It is characterized in that the electric all-terrain vehicle also includes a temperature control device, the temperature control device includes a refrigeration chip, the refrigeration chip includes a first side and a second side arranged opposite to each other, the temperature control device includes a first flow path arranged on the first side and a second flow path arranged on the second side, the first flow path is connected to the battery temperature control flow path to form a battery temperature control circuit, and the second flow path is connected to the motor cooling flow path to form a motor cooling circuit.

7. The electric motorcycle according to claim 6, It is characterized in that The electric motorcycle also includes a battery, and water pumps are provided on the motor temperature control circuit and the motor cooling circuit. The water pump and the refrigeration chip are both electrically connected to the battery; a control switch is also provided between the refrigeration chip and the battery, and the control switch includes forward opening, reverse opening and closing states. When the control switch is in the on state, the first side is cooled and the second side is heated; when the control switch is reversely opened, the first side is heated and the second side is cooled. When the control switch is closed, the battery is disconnected from the refrigeration chip.

8. The electric motorcycle according to claim 7, It is characterized in that When the temperature of the power battery is greater than a first threshold, the control switch is turned on in the forward direction, and the first side surface cools the battery temperature control circuit until the temperature of the power battery is less than the first threshold; when the temperature of the power battery is less than a second threshold, the control switch is turned on in the reverse direction, and the first side surface heats the battery temperature control circuit until the temperature of the power battery is greater than the second threshold.

9. The electric motorcycle according to claim 8, It is characterized in that When the power battery temperature is lower than a first threshold and higher than a second threshold, the control switch is closed.

10. The electric motorcycle according to any one of claims 7 or 8, It is characterized in that When the control switch is in forward opening or reverse opening, the water pump is in an on state.

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