Thermal management system

Abstract

The invention discloses a thermal management system, comprising: a first fluid channel for accommodating a first fluid; the first electric energy supply device is used for exchanging heat with the first fluid; the second fluid channel is used for containing the first fluid; the first heat exchange device is used for heat exchange between the first fluid and the environment; the power device is used for exchanging heat with the first fluid; the first switching device is used for isolating the first fluid channel from the second fluid channel or communicating the first fluid channel with the second fluid channel; the third fluid channel is used for containing a second fluid; the compression device is used for compressing the inflowing second fluid and then sending out the second fluid; the second heat exchange device is used for heat exchange between the second fluid and the environment; the third heat exchange device is used for providing heat exchange between the first fluid and the second fluid; and the first expansion element is used for adjusting the flow and the pressure of the second fluid flowing into the third heat exchange device.

Description

Technical Field

[0001] The present invention relates to a thermal management system, and in particular to a thermal management system applied to a mobile vehicle. Background Art

[0002] In low temperature environments, since both the electric vehicle cabin and the power battery system need to be heated, how to allocate the thermal management of the two is a difficult issue. At present, there are many methods for allocating thermal management of the whole vehicle in low temperature environments. Some use two independent heaters, that is, the cabin heating and the power battery heating are equipped with heaters respectively. This method is simple to control but the cost is high; some use a single heater, but the heat distribution method is relatively simple and will not change with the change of the vehicle status. The strategy of dynamically adjusting the thermal management distribution is not comprehensively considered based on the cabin supply temperature and the power battery heating conditions.

[0003] Therefore, how to overcome the above-mentioned defects through improvement of structural design has become one of the important issues that the technical field wants to solve. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a thermal management system to address the deficiencies of the prior art.

[0005] In order to solve the above-mentioned technical problems, one of the technical solutions adopted by the present invention is to provide a thermal management system, which is applied to a mobile vehicle, and the thermal management system includes a first fluid channel, a first electric energy supply device, a second fluid channel, a first heat exchange device, a power device, a first switching device, a third fluid channel, a compression device, a second heat exchange device, a third heat exchange device and a first expansion element. The first fluid channel is used to accommodate a first fluid. The first electric energy supply device is arranged in such a way that the first electric energy supply device can perform heat exchange with the first fluid when the first fluid is accommodated in the first fluid channel. The second fluid channel is used to accommodate the first fluid. The first heat exchange device is arranged on the second fluid channel for heat exchange between the first fluid and the environment. The power device is arranged in such a way that the power device can perform heat exchange with the first fluid when the first fluid is accommodated in the second fluid channel. The first switching device connects the first fluid channel and the second fluid channel and has a first state and a second state. When the first switching device is in the first state, the first switching device isolates the first fluid channel and the second fluid channel so that each of them is an independent closed loop. When the switching device is in the second state, the first switching device connects the first fluid channel and the second fluid channel so that the first fluid channel and the second fluid channel form a single closed loop. The third fluid channel is used to accommodate the second fluid. The compression device is arranged on the third fluid channel to compress the second fluid flowing in and then send it out. The second heat exchange device is arranged on the third fluid channel to allow the second fluid to exchange heat with the environment. The third heat exchange device is arranged in a manner that when the first fluid is accommodated in the first fluid channel and the second fluid is accommodated in the third fluid channel, the first fluid and the second fluid can exchange heat through the third heat exchange device. The first expansion element is arranged on the third fluid channel to adjust the flow rate and pressure of the second fluid flowing into the third heat exchange device.

[0006] Preferably, the thermal management system further comprises a drying element disposed on the third fluid channel and located between the second heat exchange device and the first expansion element.

[0007] Preferably, the thermal management system further comprises an evaporation element and a second expansion element. The evaporation element is arranged on the third fluid channel in parallel with the third heat exchange device and the first expansion element, and the evaporation element is used for heat exchange between the second fluid and the cabin environment of the mobile vehicle. The second expansion element is arranged on the third fluid channel in parallel with the third heat exchange device and the first expansion element, and the second expansion element is used for adjusting the flow rate and pressure of the second fluid flowing into the evaporation element.

[0008] Preferably, the thermal management system further includes a first switch element, a fourth heat exchange device and a second switch element. The first switch element is arranged on the third fluid channel and is located between the compression device and the second heat exchange device, and the first switch element is used to allow or block the second fluid from the compression device to flow to the second heat exchange device. The fourth heat exchange device is arranged on the third fluid channel in parallel with the second heat exchange device and the first switch element, and the fourth heat exchange device is used for heat exchange between the second fluid and the cabin environment of the mobile vehicle. The second switch element is arranged on the third fluid channel in parallel with the second heat exchange device and the first switch element, and the second switch element is used to allow or block the second fluid from the compression device to flow to the fourth heat exchange device.

[0009] Preferably, the thermal management system further comprises a third switch element, which is arranged on the third fluid channel in parallel with the compression device and the first switch element, and the third switch element is used to allow or block the second fluid from flowing from the second heat exchange device to the compression device.

[0010] Preferably, the thermal management system further comprises a one-way element and a third expansion element. The one-way element is arranged on the third fluid channel and is located between the second heat exchange device and the drying element. The third expansion element is arranged on the third fluid channel in parallel with the one-way element and the drying element, and the third expansion element is used to adjust the flow rate and pressure of the second fluid flowing into the second heat exchange device.

[0011] Preferably, the thermal management system further includes a fifth heat exchange device, which is arranged in such a way that when the first fluid is contained in the second fluid channel and the second fluid is contained in the third fluid channel, the first fluid and the second fluid can exchange heat with each other through the fifth heat exchange device, and is connected in parallel with the first heat exchange device in the second fluid channel.

[0012] Preferably, the thermal management system further comprises a heating component and a second power supply device. The heating component is used to heat the first fluid and then exchange heat with the first power supply device to increase the temperature of the first power supply device. The second power supply device is used to supply power to the heating component.

[0013] Preferably, the thermal management system further comprises an autonomous driving computing device, which is arranged in a manner that the autonomous driving computing device can exchange heat with the first fluid when the first fluid is accommodated in the first fluid channel.

[0014] Preferably, the thermal management system further includes an active grille system disposed in front of the first heat exchange device along the moving direction of the mobile vehicle, and the active grille system is used to control the flow rate of airflow passing through the first heat exchange device when the mobile vehicle is moving.

[0015] One of the beneficial effects of the present invention is that the thermal management system provided by the present invention can be configured by "a first fluid channel for accommodating a first fluid. A first power supply device is configured in such a manner that when the first fluid is accommodated in the first fluid channel, the first power supply device can perform heat exchange with the first fluid. A second fluid channel is configured to accommodate the first fluid. A first heat exchange device is configured on the second fluid channel, and the second fluid channel is configured for the first fluid to perform heat exchange with the environment. A power device is configured in such a manner that when the first fluid is accommodated in the second fluid channel, the power device can perform heat exchange with the first fluid. A first switching device connects the first fluid channel and the second fluid channel and has a first state and a second state. When the first switching device is in the first state, the first switching device isolates the first fluid channel and the second fluid channel so that they are each an independent closed loop. When the switching device is in the second state, the first switching device isolates the first fluid channel and the second fluid channel so that they are each an independent closed loop. In the second state, the first switching device connects the first fluid channel and the second fluid channel so that the first fluid channel and the second fluid channel form a single closed loop. The third fluid channel is used to accommodate the second fluid. A compression device is arranged on the third fluid channel, and the compression device is used to compress the second fluid flowing in and then send it out. A second heat exchange device is arranged on the third fluid channel, and the second heat exchange device is used for the second fluid to exchange heat with the environment. The third heat exchange device is arranged in such a way that when the first fluid is accommodated in the first fluid channel and the second fluid is accommodated in the third fluid channel, the first fluid and the second fluid can exchange heat through the third heat exchange device. The first expansion element is arranged on the third fluid channel, and the first expansion element is used to adjust the flow rate and pressure of the second fluid flowing into the third heat exchange device" technical solution to improve the thermal management efficiency of the mobile vehicle.

[0016] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and description and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 4 is a circuit diagram of a thermal management system according to an embodiment of the present invention.

[0018] Figure 2 FIG. 4 is a functional block diagram of a thermal management system according to an embodiment of the present invention.

[0019] Figure 3 This is a first flow chart of a control method for a thermal management system according to an embodiment of the present invention.

[0020] Figure 4 This is a second flow chart of the control method of the thermal management system according to an embodiment of the present invention.

[0021] Reference numerals:

[0022] Z: thermal management system; Z1: first fluid channel; Z1a: first pipeline element; Z1b: first pump element; Z2: first power supply device; Z3: second fluid channel; Z3a: second pipeline element; Z3b: second pump element; Z3c: second multi-directional element; Z4: first heat exchange device; Z5: power device; Z6: first switching device; Z7: third fluid channel; Z7a: third pipeline element; Z7b: third multi-directional element; Z8: compression device; Z9: second heat exchange device; Z10: third heat exchange device; Z11: first expansion element; Z12: drying element; Z13: evaporation element; Z14: second expansion element; Z15: first switch element; Z 17: second switch element; Z18: third switch element; Z16: fourth heat exchange device; Z19: one-way element; Z20: third expansion element; Z21: heating component; Z22: second power supply device; Z23: fifth heat exchange device; Z24: automatic driving operation device; Z25: active grille system; Z26: air-conditioning motor; Z27: internal and external circulation motor; Z28: blower; Z29: air heater; M: mobile vehicle; M1: first sensor component; M2: control component; M3: second sensor component; M4: third sensor component; M5: fourth sensor component; M6: fifth sensor component; M7: auxiliary water tank; M8: front motor; M9: electric motor controller. DETAILED DESCRIPTION

[0023] The following is an explanation of the implementation methods of the "thermal management system and its control method" disclosed in the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following implementation methods will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0024] It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0025] Example

[0026] See also Figures 1 to 4 , which are respectively a circuit diagram of a thermal management system of an embodiment of the present invention, a functional block diagram of the thermal management system, a first flow chart of a control method of the thermal management system, and a second flow chart of the control method. As shown in the above figures, an embodiment of the present invention provides a thermal management system Z, which is applied to a mobile vehicle M. The thermal management system includes a first fluid channel Z1, a second power supply device Z2, a second fluid channel Z3, a first heat exchange device Z4, a power device Z5, a first switching device Z6, a third fluid channel Z7, a compression device Z8, a second heat exchange device Z9, a third heat exchange device Z10, and a first expansion element Z11.

[0027] Cooperate Figures 1 to 3 As shown, the first fluid channel Z1 is used to contain the first fluid. The first fluid channel Z1 may include a first pipeline element Z1a and a first pump element Z1b. The first pipeline element Z1a may be a pipe structure, and the first pipeline element Z1a may contain the first fluid; wherein the first pipeline element Z1a may be a single-loop pipeline, and the first fluid may be water or other types of fluids, but is not limited thereto. The first pump element Z1b may be a water pump or other types of pumps, and the first pump element Z1b may be disposed in the first pipeline element Z1a.

[0028] Next, cooperate Figures 1 to 3 As shown, the first power supply device Z2 is arranged in such a way that when the first fluid is contained in the first fluid channel Z1, the first power supply device Z2 can perform heat exchange with the first fluid. For example, the first power supply device Z2 can be arranged on the first fluid channel Z1, and specifically, a channel through which the first fluid can pass can be designed in the battery pack structure. The first power supply device Z2 can be a battery module (or battery pack, power battery) that provides the energy (i.e., electric energy) required by the power equipment of the mobile vehicle M.

[0029] Next, cooperate Figures 1 to 3As shown, the second fluid channel Z3 is used to accommodate the first fluid. For example, the second fluid channel Z3 may include a second pipeline element Z3a, at least one second pump element Z3b and a plurality of second multi-directional elements Z3c. The second pipeline element Z3a may be a pipe structure, and the second pipeline element Z3a may be used to accommodate the first fluid; wherein the second pipeline element Z3a may be a pipeline with one or more loops, but is not limited thereto. The second pump element Z3b may be a water pump or other types of pumps, and the second pump element Z3b may be disposed in the second pipeline element Z3a. The second multi-directional element Z3c may be a tee, and may be disposed in the second pipeline element Z3a.

[0030] Next, cooperate Figures 1 to 3 As shown, the first heat exchange device Z4 is disposed on the second fluid channel Z3, and the first heat exchange device Z4 is used for heat exchange between the first fluid and the environment. For example, the first heat exchange device Z4 can be a main heat sink, and can be disposed on the second pipe element Z3 of the second fluid channel Z9. The first heat exchange device Z4 can provide heat exchange between the first fluid in the second pipe element Z3 and the external environment of the mobile vehicle M.

[0031] Next, cooperate Figures 1 to 3 As shown, the power device Z5 is arranged in a manner that the power device Z5 can exchange heat with the first fluid when the first fluid is contained in the second fluid channel. For example, the power device Z5 can be a drive motor module of the rear wheel, but is not limited thereto. The power device Z5 can be arranged on the second pipe element Z3a of the second fluid channel Z3, specifically, for example, a channel for the first fluid to pass through is arranged in the motor module.

[0032] Next, cooperate Figures 1 to 3 As shown, the first switching device Z6 connects the first fluid channel Z1 and the second fluid channel Z3 and has a first state and a second state. When the first switching device Z6 is in the first state, the first switching device Z6 isolates the first fluid channel Z1 and the second fluid channel Z3, so that each of them is an independent closed loop. When the switching device Z6 is in the second state, the first switching device Z6 connects the first fluid channel Z1 and the second fluid channel Z3, so that the first fluid channel Z1 and the second fluid channel Z3 form a single closed loop. For example, the first switching device Z6 can be a four-way valve body. The first switching device Z6 connects the second pipeline element Z3a of the second fluid channel Z3 and the first pipeline element Z1a of the first fluid channel Z1.

[0033] Next, cooperate Figures 1 to 3As shown, the third fluid channel Z7 is used to accommodate the second fluid. For example, the third fluid channel Z7 may include a second pipeline element Z7a. The second pipeline element Z7a may be a pipe structure, and the second pipeline element Z7a may contain a second fluid; wherein the second pipeline element Z7a may be a pipeline with one or more loops, and the second fluid may be ammonia, sulfur dioxide, non-halogenated hydrocarbons or other types of fluids, but is not limited thereto. In addition, the third fluid channel Z7 may also include a plurality of third multidirectional elements Z7b. The plurality of third multidirectional elements Z7b may be located on the second pipeline element Z7a, and the third multidirectional element Z7b may be a three-way body.

[0034] Next, cooperate Figures 1 to 3 As shown, the compression device Z8 is disposed on the third fluid channel Z7, and is used to compress the second fluid flowing in and then send it out. For example, the compression device Z8 can be a compressor, and can be disposed on the second pipeline element Z7a of the third fluid channel Z7.

[0035] Next, cooperate Figures 1 to 3 As shown, the second heat exchange device Z9 is disposed on the third fluid channel Z7, and the second heat exchange device Z9 is used for heat exchange between the second fluid and the environment. For example, the second heat exchange device Z9 can be a condenser, a fan or a combination thereof. The second heat exchange device Z9 can be disposed on the second pipe element Z7a of the third fluid channel Z7, and can provide heat exchange between the second fluid in the second pipe element Z7a and the external environment of the mobile vehicle M.

[0036] Next, cooperate Figures 1 to 3 As shown, the third heat exchange device Z10 is arranged in a manner that when the first fluid channel Z1 contains the first fluid and the third fluid channel Z7 contains the second fluid, the first fluid and the second fluid can exchange heat through the third heat exchange device Z10. For example, the third heat exchange device Z10 can be arranged on the first pipe element Z1a of the first fluid channel Z1 and the second pipe element Z7a of the third fluid channel Z7. The third heat exchange device Z10 can be a refrigerant heat exchanger or other types of heat exchangers.

[0037] Next, cooperate Figures 1 to 3 As shown, the first expansion element Z11 is disposed on the third fluid channel Z7, and the first expansion element Z11 is used to adjust the flow rate and pressure of the second fluid flowing into the third heat exchange device Z10. For example, the first expansion element Z11 can be an expansion valve, and can be disposed on the second pipe element Z7a of the third fluid channel Z7.

[0038] Furthermore, the thermal management system Z further comprises a drying element Z12, which is disposed on the third fluid channel Z7 and located between the second heat exchange device Z9 and the first expansion element Z11. For example, the drying element Z12 may be located on the second pipe element Z7a of the third fluid channel Z7. The drying element Z12 may be a drying bottle.

[0039] Furthermore, the thermal management system further includes an evaporation element Z13 and a second expansion element Z14. The evaporation element Z13 is arranged on the third fluid channel Z7 in parallel with the third heat exchange device Z10 and the first expansion element Z11, and the evaporation element Z13 is used for heat exchange between the second fluid and the cabin environment of the mobile vehicle M. The second expansion element Z14 is arranged on the third fluid channel Z7 in parallel with the third heat exchange device Z10 and the first expansion element Z11, and the second expansion element Z14 is used to adjust the flow rate and pressure of the second fluid flowing into the evaporation element Z13. For example, the evaporation element Z13 can be an evaporator. The second expansion element Z14 can be an expansion valve and can be arranged on the second pipeline element Z7a of the third fluid channel.

[0040] Furthermore, the thermal management system Z further includes a first switch element Z15, a fourth heat exchange device Z16 and a second switch element Z17. The first switch element Z15 is disposed on the third fluid channel Z7 and is located between the compression device Z8 and the second heat exchange device Z9. The first switch element Z15 is used to allow or block the second fluid from the compression device Z8 to the second heat exchange device Z9. The fourth heat exchange device Z16 is disposed on the third fluid channel Z7 in parallel with the second heat exchange device Z9 and the first switch element Z15. The fourth heat exchange device Z16 is used for heat exchange between the second fluid and the cabin environment of the mobile vehicle M. The second switch element Z17 is disposed on the third fluid channel Z7 in parallel with the second heat exchange device Z9 and the first switch element Z15. The second switch element Z17 is used to allow or block the second fluid from the compression device Z8 to the fourth heat exchange device Z16. For example, the first switch element Z15 may be located on the second pipe element Z7a of the third fluid channel Z7, and the first switch element Z15 may be a solenoid valve. The fourth heat exchange device Z16 may be an internal condenser. The second switch element Z17 may be located on the second pipe element Z7a of the third fluid channel Z7, and the second switch element Z17 may be a solenoid valve.

[0041] Furthermore, the thermal management system Z further includes a third switch element Z18, which is disposed on the third fluid channel Z7 in parallel with the compression device Z8 and the first switch element Z15, and the third switch element Z18 is used to allow or block the second fluid from the second heat exchange device Z9 to flow to the compression device Z8. For example, the third switch element Z18 can be located on the second pipe element Z7a of the third fluid channel Z7, and the third switch element Z18 can be a solenoid valve.

[0042] Furthermore, the thermal management system Z further includes a one-way element Z19 and a third expansion element Z20. The one-way element Z19 is arranged on the third fluid channel and is located between the second heat exchange device and the drying element. The third expansion element Z20 is arranged on the third fluid channel in parallel with the one-way element and the drying element, and the third expansion element Z20 is used to adjust the flow rate and pressure of the second fluid flowing into the second heat exchange device. For example, the one-way element Z19 can be a one-way valve body. The third expansion element Z20 can be an expansion valve and can be arranged on the second pipeline element Z7a of the third fluid channel Z7.

[0043] Furthermore, the thermal management system Z further includes a heating component Z21 and a second power supply device Z22. The heating component Z21 is used to heat the first fluid and then exchange heat with the first power supply device Z2 to increase the temperature of the first power supply device Z2. The second power supply device Z22 is used to supply electric energy to the heating component Z21. For example, the heating component Z21 is disposed on the first pipeline element Z1a of the first fluid channel Z1, and the heating component Z21 can be a water heater. The second power supply device Z22 can be electrically connected to the heating component Z21 and provide electric energy to the heating component Z21, and the second power supply device Z22 can be a lead-acid battery or a lithium battery.

[0044] Based on the above, the present invention further provides a control method for a thermal management system Z, which can be applied to a mobile vehicle M. The control method includes at least the following steps:

[0045] First, it is detected and determined whether the ambient temperature is lower than the first predetermined temperature to determine whether to heat the first fluid channel Z1 through the heating element Z21, and then use the first fluid channel Z1 to heat the first power supply device Z2 of the mobile vehicle M (step S100).

[0046] For example, with Figure q to Figure 3As shown, the control method of the thermal management system Z of the present invention can be applied to a mobile vehicle M and the thermal management system Z of the present invention described above; wherein the mobile vehicle can be a vehicle that uses electricity as a power source and has four or more wheels, that is, an electric vehicle, but is not limited thereto. The thermal management system Z of the present invention is also applied to the mobile vehicle M.

[0047] Therefore, before the mobile vehicle M is started, the ambient temperature outside the mobile vehicle (i.e., outside the vehicle) can be detected by the first sensor component M1 of the mobile vehicle M. Then, the control component M2 of the mobile vehicle M is used to determine whether the ambient temperature sensed by the first sensor component Z7 is lower than the first predetermined temperature; if the control component M2 determines that the ambient temperature is lower than the first predetermined temperature, the control component M2 can drive the heating component Z21 to heat the first fluid channel Z1 and the first fluid therein, so as to transfer heat energy to the first power supply device Z2 by using the first fluid and the first pipeline element Z1a, thereby heating the first power supply device Z2.

[0048] Furthermore, the control method of the thermal management system Z of the present invention further includes the following steps in the step S100 of heating the first power supply device Z2:

[0049] When it is determined that the ambient temperature is lower than the first predetermined temperature, the control component M2 drives the heating component Z21 to heat the first fluid channel Z1.

[0050] Next, the ambient temperature is detected and determined to be higher or lower than the second predetermined temperature to determine whether to provide heat energy or cold energy to the air conditioning module through the third fluid channel Z7, and to use the air conditioning module to provide cooling or heating to the interior space of the cabin of the mobile vehicle M (step S102).

[0051] For example, with Figures 1 to 3As shown, after heating the first power supply device Z2, or after the temperature of the first power supply device Z2 reaches the working temperature, the control component M2 can be used to determine whether the ambient temperature sensed by the first sensor component Z7 is lower than the second predetermined temperature; if the control component M2 determines that the ambient temperature is lower than the second predetermined temperature, the control component M2 can drive the compression device Z8 and the first expansion element Z11 to operate, so as to provide heat energy to the air conditioning module through the second fluid of the third fluid channel Z7, the second pipeline element Z7a and the second heat exchange device Z9, so that the blower Z28 and the evaporation element Z13 of the air conditioning module can supply warm air to the interior space of the cabin of the mobile vehicle (not shown in the figure). It is worth mentioning that the thermal management system Z can also include an air conditioning motor Z26, an internal and external circulation motor Z27, a blower Z28 and an air heater Z29. The air-conditioning motor Z26, the internal and external circulation motor Z27, the blower Z28 and the air heater Z29 can form an air-conditioning component together with the evaporating element Z13 and the fourth heat exchange device Z16, and the air-conditioning component can be a heating, ventilation, and air conditioning (HVAC) equipment assembly, and the air-conditioning component can be connected to the control component M2.

[0052] When the control component M2 determines that the ambient temperature is higher than the second predetermined temperature, the control component M2 can drive the compression device Z8 and the first expansion element Z11 to operate, so as to provide cold energy to the air-conditioning module through the second fluid of the third fluid channel Z7, the second pipe element Z7a and the second heat exchange device Z9, so that the blower Z28 and the evaporation element Z13 of the air-conditioning module can supply heat to the interior space of the cabin of the mobile vehicle M.

[0053] Furthermore, the thermal management system Z further includes a fifth heat exchange device Z23, which is arranged in a manner that when the first fluid is contained in the second fluid channel Z3 and the second fluid is contained in the third fluid channel Z7, the first fluid and the second fluid can be heat exchanged through the fifth heat exchange device Z23, and is connected in parallel to the first heat exchange device Z4 in the second fluid channel Z3. For example, the fifth heat exchange device Z23 can be arranged in the second pipe element Z7a of the third fluid channel Z7 and the third pipe element Z3a of the second fluid channel Z3. The third heat exchange device Z10 can be a refrigerant heat exchanger or other types of heat exchangers.

[0054] Furthermore, the thermal management system Z further includes an autonomous driving computing device Z24, which is arranged in such a way that the autonomous driving computing device Z24 can perform heat exchange with the first fluid when the first fluid channel Z1 contains the first fluid. For example, the autonomous driving computing device Z24 can be arranged in the first pipeline element Z1a of the first fluid channel Z1 and connected to the control component M2, and the autonomous driving computing device Z24 is used to generate heat energy by performing computing actions. The autonomous driving computing device Z24 can be an autonomous driving computing module.

[0055] Furthermore, the thermal management system Z further includes an active grille system Z25, which is disposed in front of the first heat exchange device Z4 along the travel direction of the mobile vehicle M, and is used to control the flow rate of the airflow passing through the first heat exchange device Z4 when the mobile vehicle M is traveling. For example, the active grille system Z25 can be an active air intake grille module, and can be installed at the front end of the mobile vehicle M.

[0056] Furthermore, the control method of the thermal management system Z of the present invention may also include the following steps:

[0057] Detect and determine whether the temperature of the second fluid channel Z3 is higher than the third predetermined temperature to determine whether to drive the first switching device Z6 to connect the second fluid channel Z3 and the first fluid channel Z1, or transfer the heat energy of the second fluid channel Z3 to the third fluid channel Z7 through the fifth heat exchange device Z23 (step S104).

[0058] For example, with Figures 1 to 4 As shown, the thermal management system Z of the present invention can utilize the second sensor component M3 of the mobile vehicle M to sense the temperature of the second pipeline element Z3a, or the temperature of the first fluid in the second pipeline element Z3a, and determine through the control component M2 whether the temperature sensed by the second sensor component M3 is higher than the third predetermined temperature; if the control component M2 determines that the temperature is higher than the third predetermined temperature, the control component M2 can drive the first switching device Z6 to be in a conducting state, so that the second fluid channel Z3 is connected to the first fluid channel Z1, and the heat energy of the second fluid channel Z3 can be transferred to the first fluid channel Z1, or the heat energy can be converted and transferred to the first fluid channel Z1 through the fifth heat exchange device Z23, thereby achieving the effect of heat recovery.

[0059] Furthermore, the control method of the thermal management system Z of the present invention may also include the following steps:

[0060] Detect and determine whether a temperature difference between the temperature of the first power supply device Z2 and the temperature of the air conditioning component is lower than or higher than a fourth predetermined temperature, so as to determine whether to perform a heating action or a cooling action on the first power supply device Z2 (step S106). The first power supply device Z2 can be heated or cooled by existing means, and those skilled in the art can also use appropriate heating or cooling means according to actual needs and hardware configuration.

[0061] For example, with Figures 1 to 4 As shown, the third sensor component M4 of the mobile vehicle M can be electrically connected to the control component M2, and the third sensor component M4 is used to sense the temperature of the first power supply device Z2. The third sensor component M4 can be a temperature sensor, and the third sensor component M4 can be set on the first power supply device Z2. The fourth sensor component M4 of the mobile vehicle M can be electrically connected to the control component M2, and the fourth sensor component M5 is used to sense the temperature of the air-conditioning component. The fourth sensor component M5 can be a temperature sensor, and the fourth sensor component M5 can be set on the air-conditioning component. Among them, the control component M2 determines whether the temperature difference between the temperature of the first power supply device Z2 and the temperature of the air-conditioning component is higher than the fourth predetermined temperature to determine whether to perform a heating action or a cooling action on the first power supply device Z2.

[0062] Furthermore, the control method of the thermal management system Z of the present invention may also include the following steps:

[0063] According to the temperature of the first power supply device Z2 and the internal space, it is determined whether to adjust the speed of the compression device Z8 of the third fluid channel Z7 (step S108). Among them, technicians in this technical field can use appropriate conditions such as temperature to control the compression device Z8 accordingly according to actual needs and hardware configuration.

[0064] For example, with Figures 1 to 4 As shown, the fifth sensor component M6 of the mobile vehicle M can be electrically connected to the control component M2, and the fifth sensor component M6 is used to sense the temperature of the internal space of the mobile vehicle M. The fifth sensor component M6 can be a temperature sensor, and the fifth sensor component M6 can be located in the internal space. The control component M2 determines whether to adjust the speed of the compression device Z8 of the third fluid channel Z7 according to the temperature of the first power supply device Z2 and the temperature of the internal space.

[0065] Furthermore, the control method of the thermal management system Z of the present invention may also include the following steps:

[0066] Whether to adjust the rotation speed of at least one second pump element Z3b of the second fluid channel Z3, the second heat exchange device Z9 of the third fluid channel Z7, or both of them is determined based on whether the temperature of the air conditioning component is higher or lower than the fifth predetermined temperature (step S110).

[0067] For example, with Figure q to Figure 4 As shown, the thermal management system Z of the present invention can use the fourth sensor component M5 to sense the temperature of the air conditioning component, and determine whether the temperature of the air conditioning component is higher or lower than the fifth predetermined temperature through the control component M2; if the control component M2 determines that the temperature is higher than the fifth predetermined temperature, the control component M2 can drive the current speed of at least one of the second pump component Z3b and the second heat exchange device Z9 to increase, so as to accelerate the cooling speed of the air conditioning component. If the control component M2 determines that the temperature is lower than the fifth predetermined temperature, the control component M2 can drive the second pump component Z3b and the second heat exchange device Z9 to maintain the current speed, or drive the current speed of at least one of the second pump component Z3b and the second heat exchange device Z9 to decrease.

[0068] Furthermore, the control method of the thermal management system Z of the present invention further includes the following steps in the step S100 of heating the first power supply device Z2:

[0069] When it is determined that the ambient temperature is lower than the first predetermined temperature, the automatic driving computing device Z24 performs a computing action to generate and provide heat energy to the first fluid channel Z1.

[0070] For example, with Figures 1 to 4 As shown, the thermal management system Z of the present invention may also include an automatic driving operation device Z24, which is arranged in the first fluid channel Z1 and connected to the control component M2. The automatic driving operation device Z24 is used to generate heat energy by performing an operation action. The automatic driving operation device Z24 may be an automatic driving operation module. Among them, the control component M2 determines whether the ambient temperature sensed by the first sensor component Z7 is lower than the first predetermined temperature to decide whether to drive the automatic driving operation device Z24 to perform an operation action, thereby providing heat energy to the first fluid channel Z1, and then using the first fluid channel Z1 to heat the first power supply device Z2. Therefore, when the control component M2 of the thermal management system Z of the present invention determines that the ambient temperature is lower than the first predetermined temperature, the automatic driving operation device Z24 may also perform an operation action to provide heat energy to the first fluid channel Z1.

[0071] Therefore, the thermal management system Z and its control method of the present invention can overcome the limitation of using the heat pump heating system (i.e., the third fluid channel Z7) at low temperatures by utilizing the characteristics of the lead-acid battery (i.e., the second power supply device Z22) that can discharge at low temperatures through the above-mentioned technical solution, and control the three-electric system and the air conditioning component in their high-efficiency temperature range, thus overcoming the use scenario where the first power supply device Z2 cannot discharge at extremely low temperatures, and can also meet the use scenario of high temperature environment 45 degrees to low temperature environment -20 degrees. In addition, when the mobile vehicle M is at extremely low temperatures, the first power supply device Z2 can be provided with a heat source by starting the automatic driving operation device Z24 to perform automatic driving operations, so that the heat pump heating system is started after the first power supply device Z2 reaches its operating temperature. Moreover, the heat pump heating system can recover heat through the refrigerant heat exchanger (i.e., the third heat exchange device Z10, the fifth heat exchange device Z23), and the second heat exchange device Z9, thereby reducing the power consumption of the cabin air conditioning; and, through the third fluid channel Z7, the waste heat of the motor is recovered and the first power supply device Z2 is insulated to reduce the power consumption of heating the first power supply device Z2.

[0072] Furthermore, the thermal management system Z and the control method thereof of the present invention can also have the following multiple modes through the above technical solutions:

[0073] (i) Extremely low temperature heating mode: The battery water heater (i.e., heating element Z21) is activated by the lead-acid battery to heat the battery pack (i.e., the first power supply device Z2) to the operating temperature. The cabin is switched to the heating mode through the refrigerant circuit (i.e., the third fluid channel Z7). The refrigerant (i.e., the second fluid) absorbs heat from the atmosphere through the heat absorption and exhaust element Z4c, and the cabin air is heated in the heat exchanger (i.e., the evaporation element Z13) inside the air conditioning component; when the heating capacity is insufficient, the air heater Z29 is activated additionally. The circuit of the second fluid channel Z3 and the first fluid channel Z1 can be in parallel, reducing the speed of the second pump element Z3b and accelerating the speed at which the battery reaches the operating temperature. The circuit of the second pipe element Z3a avoids the water tank to avoid heat dissipation to the atmosphere to maintain the optimal operating temperature of the motor (i.e., the air conditioning component), and provides waste heat to the refrigerant (i.e., the second fluid) through the third heat exchange device Z10. When the first power supply device Z2 reaches the operating temperature, the mobile vehicle is in the starting state, and the motor (i.e., the air conditioning component) is at a sufficient temperature, the circuit of the second fluid channel Z3 and the first fluid channel Z1 can be changed into a series state, and the first fluid channel Z1 is heated to the optimal operating temperature by recycling the waste heat of the second fluid channel Z3. In addition, the second fluid of the third fluid channel Z7 exchanges heat with the first fluid of the second fluid channel Z3 and the first fluid of the first fluid channel Z1, thereby reducing the output load of the compressor (i.e., the compression device Z8) when the cabin is heated.

[0074] (II) Extremely high temperature cooling mode: When the cabin, battery, and power system all need to be cooled, the expansion element Z4b and the first switch element Z15 of the third fluid channel Z7 are turned on, and the second fluid channel Z3 and the first fluid channel Z1 are connected in parallel through the first switching device Z6. The cabin transfers the refrigerant through the evaporation element Z13 of the air-conditioning motor Z26, and the heat of the battery is transferred from the cooling water (i.e., the first fluid) to the refrigerant (i.e., the second fluid) through the third heat exchange device Z10, and is dissipated to the atmosphere through the second heat exchange device Z9. The air conditioning component is brought to the first heat exchange device Z4 through the cooling water (i.e., the first fluid) and dissipated to the atmosphere for the purpose of cooling. When the battery reaches the optimal operating temperature, the circuits of the third fluid channel Z7 and the first fluid channel Z1 are independent and have no heat exchange. In addition, the first pump element Zqa can also be controlled at a specific speed to reduce the cabin cooling demand and fully cool the first power supply device Z2.

[0075] (iii) Dehumidification mode: The air in the interior space of the mobile vehicle is first heated and then condensed through the fourth heat exchange device Z16 of the air conditioning assembly.

[0076] (IV) De-icing mode: When the external condenser (i.e., the second heat exchange device Z9) is frozen, the refrigerant circuit (i.e., the third fluid channel Z7) switches to the cooling mode. The refrigerant dissipates heat to the atmosphere, melting the ice on the surface of the condenser. The refrigerant heat exchanger (i.e., the third heat exchange device Z10) of the battery circuit (i.e., the first fluid channel Z1) plays the role of an evaporator, absorbing the heat of the battery or water heater (i.e., the heating component Z21) and re-evaporating it into a gaseous refrigerant.

[0077] Advantageous Effects of Embodiments

[0078] One of the beneficial effects of the present invention is that the thermal management system Z provided by the present invention can be used to accommodate the first fluid through the "first fluid channel Z1. The first power supply device Z2 is arranged in a manner that the first power supply device Z2 can exchange heat with the first fluid when the first fluid is accommodated in the first fluid channel Z1. The second fluid channel Z3 is used to accommodate the first fluid. The first heat exchange device Z4 is arranged on the second fluid channel Z3, and the first heat exchange device Z4 is used for the first fluid to exchange heat with the environment. The power device Z5 is arranged in a manner that the power device Z5 can exchange heat with the first fluid when the first fluid is accommodated in the second fluid channel. The first switching device Z6 connects the first fluid channel Z1 and the second fluid channel Z3 and has a first state and a second state. When the first switching device Z6 is in the first state, the first switching device Z6 isolates the first fluid channel Z1 and the second fluid channel Z3 so that they are each an independent closed loop, and when the switching device Z6 is in the second state , the first switching device Z6 connects the first fluid channel Z1 and the second fluid channel Z3 so that the first fluid channel Z1 and the second fluid channel Z3 form a single closed loop. The third fluid channel Z7 is used to accommodate the second fluid. The compression device Z8 is arranged on the third fluid channel Z7, and the compression device Z8 is used to compress the second fluid flowing in and then send it out. The second heat exchange device Z9 is arranged on the third fluid channel Z7, and the second heat exchange device Z9 is used for the second fluid to exchange heat with the environment. The third heat exchange device Z10 is arranged in a manner that when the first fluid is accommodated in the first fluid channel Z1 and the second fluid is accommodated in the third fluid channel Z7, the first fluid and the second fluid can be heat exchanged through the third heat exchange device Z10. The first expansion element Z11 is arranged on the third fluid channel Z7, and the first expansion element Z11 is used to adjust the flow rate and pressure of the second fluid flowing into the third heat exchange device Z10. The technical solution of "improving the heating efficiency of the battery of the mobile vehicle in a low temperature environment".

[0079] Furthermore, the thermal management system Z and its control method of the present invention can overcome the limitation of using the heat pump heating system (i.e., the third fluid channel Z7) at low temperatures by utilizing the characteristics of the lead-acid battery (i.e., the second power supply device Z22) that can discharge at low temperatures through the above-mentioned technical solution, and control the three-electric system and the air conditioning component in their high-efficiency temperature range, thus overcoming the use scenario where the first power supply device Z2 cannot discharge at extremely low temperatures, and can also meet the use scenario of high temperature environment 45 degrees to low temperature environment -20 degrees. In addition, when the mobile vehicle is at extremely low temperatures, the first power supply device Z2 can be provided with a heat source by starting the automatic driving computing device Z24 to perform automatic driving computing, so that the heat pump heating system is started after the first power supply device Z2 reaches its operating temperature. Moreover, the heat pump heating system can recover heat through the refrigerant heat exchanger (i.e., the third heat exchange device Z10, the fifth heat exchange device Z23), and the second heat exchange device Z9, thereby reducing the power consumption of the cabin air conditioning; and, through the third fluid channel Z7, the waste heat of the motor is recovered and the first power supply device Z2 is insulated to reduce the power consumption of heating the first power supply device Z2.

[0080] The contents disclosed above are only preferred feasible embodiments of the present invention, and are not intended to limit the protection scope of the claims of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention description and drawings are included in the protection scope of the claims of the present invention.

Claims

1. A thermal management system, characterized in that: Applied to a mobile vehicle, the thermal management system comprises: A first fluid channel for containing a first fluid; a first power supply device, arranged in such a way that the first power supply device can exchange heat with the first fluid when the first fluid is contained in the first fluid channel; a second fluid channel, for containing the first fluid; A first heat exchange device is disposed on the second fluid channel, and the first heat exchange device is used for heat exchange between the first fluid and the environment; a power device, arranged in such a way that the power device can exchange heat with the first fluid when the first fluid is contained in the second fluid passage; a first switching device, connecting the first fluid channel and the second fluid channel and having a first state and a second state. When the first switching device is in the first state, the first switching device isolates the first fluid channel and the second fluid channel so that each of them is an independent closed loop. When the switching device is in the second state, the first switching device connects the first fluid channel and the second fluid channel so that the first fluid channel and the second fluid channel form a single closed loop. a third fluid channel for containing a second fluid; A compression device, disposed on the third fluid channel, for compressing the second fluid flowing in and then delivering it out; A second heat exchange device, disposed on the third fluid channel, the second heat exchange device being used for heat exchange between the second fluid and the environment; a third heat exchange device, arranged in such a way that when the first fluid channel contains the first fluid and the third fluid channel contains the second fluid, the first fluid and the second fluid can exchange heat through the third heat exchange device; and The first expansion element is disposed on the third fluid channel, and the first expansion element is used to adjust the flow rate and pressure of the second fluid flowing into the third heat exchange device.

2. The thermal management system according to claim 1, characterized in that: The thermal management system further comprises: A drying element is disposed on the third fluid channel and located between the second heat exchange device and the first expansion element.

3. The thermal management system according to claim 2, characterized in that: The thermal management system further comprises: an evaporation element, disposed on the third fluid channel in parallel with the third heat exchange device and the first expansion element, the evaporation element being used for heat exchange between the second fluid and the cabin environment of the mobile vehicle; and The second expansion element is disposed on the third fluid channel in parallel with the third heat exchange device and the first expansion element, and the second expansion element is used to adjust the flow rate and pressure of the second fluid flowing into the evaporation element.

4. The thermal management system according to claim 2, characterized in that: The thermal management system further comprises: a first switch element, disposed on the third fluid channel and located between the compression device and the second heat exchange device, the first switch element being used to allow or block the second fluid from flowing from the compression device to the second heat exchange device; a fourth heat exchange device, disposed on the third fluid channel in parallel with the second heat exchange device and the first switch element, the fourth heat exchange device being used for heat exchange between the second fluid and the cabin environment of the mobile vehicle; and The second switch element is disposed on the third fluid channel in parallel with the second heat exchange device and the first switch element, and the second switch element is used to allow or block the second fluid from flowing from the compression device to the fourth heat exchange device.

5. The thermal management system according to claim 4, characterized in that: The thermal management system further comprises: The third switch element is disposed on the third fluid channel in parallel with the compression device and the first switch element, and the third switch element is used to allow or block the second fluid from flowing from the second heat exchange device to the compression device.

6. The thermal management system according to claim 4, characterized in that: The thermal management system further comprises: a one-way element, disposed on the third fluid channel and located between the second heat exchange device and the drying element; and The third expansion element is disposed on the third fluid channel in parallel with the one-way element and the drying element, and is used to adjust the flow rate and pressure of the second fluid flowing into the second heat exchange device.

7. The thermal management system according to claim 1, characterized in that: The thermal management system further comprises: The fifth heat exchange device is arranged in a manner such that when the first fluid is contained in the second fluid channel and the second fluid is contained in the third fluid channel, the first fluid and the second fluid can exchange heat through the fifth heat exchange device, and is connected in parallel with the first heat exchange device in the second fluid channel.

8. The thermal management system according to claim 1, characterized in that: The thermal management system further comprises: a heating component, used for heating the first fluid and then causing it to exchange heat with the first power supply device, thereby increasing the temperature of the first power supply device; and The second power supply device is used to supply power to the heating component.

9. The thermal management system according to claim 1, characterized in that: The thermal management system further comprises: The autonomous driving computing device is arranged in such a way that the autonomous driving computing device can exchange heat with the first fluid when the first fluid channel contains the first fluid.

10. The thermal management system according to claim 1, characterized in that: The thermal management system further comprises: The active grille system is disposed in front of the first heat exchange device along the moving direction of the mobile vehicle, and the active grille system is used to control the flow rate of airflow passing through the first heat exchange device when the mobile vehicle is moving.

Images