Transportation device and thermal management system and thermal management method therefor

A thermal management system for a transportation device, comprising:

• an air-conditioning system comprising a first air-conditioning loop, a second air-conditioning loop, and a first air-conditioning switching component;
• a thermal management loop, wherein the thermal management loop is configured to:
• circulate a first heat-conducting medium to perform thermal management on a specified part of the transportation device;
• and
• exchange heat with the air-conditioning system to selectively transfer heat generated by the specified part to the air-conditioning system at least when the air-conditioning system is in a heating state, to provide at least a partial heat source for an evaporation process of the air-conditioning system;
• an auxiliary heater, wherein the auxiliary heater is configured to selectively replenish heat for the thermal management loop;
• a control module, wherein the control module is configured to control, in response to the heat generated by the specified part not meeting a heat supply demand of the air-conditioning system, the auxiliary heater to replenish heat for the thermal management loop;
• and
• a thermal management switching component;
• wherein:
• the thermal management loop comprises at least two thermal management sub-loops, the at least two thermal management sub-loops are configured to perform thermal management on different specified parts;
• the control module is configured to control the thermal management switching component to selectively switch a heat exchange relationship between the at least two thermal management sub-loops and the air-conditioning system;
• the first air-conditioning loop is configured to circulate a refrigerant and comprises a compressor, a condensing heat exchanger, a liquid reservoir, a first evaporation heat exchanger, and a second evaporation heat exchanger, wherein the refrigerant absorbs heat by evaporation in the first evaporation heat exchanger, to cool a specified region of the transportation device by air conditioning, and the refrigerant absorbs heat by evaporation in the second evaporation heat exchanger, to absorb heat from the thermal management loop;
• the second air-conditioning loop is configured to circulate a second heat-conducting medium and comprises a heating heat exchanger, wherein the heating heat exchanger exchanges heat with the condensing heat exchanger, to heat the specified region by air conditioning;
• and
• the second thermal management sub-loop and the second air-conditioning loop are each connected to the condensing heat exchanger through the first air-conditioning switching component, and the control module is configured to control the first air-conditioning switching component to selectively supply the first heat-conducting medium in the second thermal management sub-loop and the second heat-conducting medium in the second air-conditioning loop to the condensing heat exchanger.

A thermal management system for a transportation device, comprising:

• an air-conditioning system;
• a thermal management loop, wherein the thermal management loop is configured to:
• circulate a first heat-conducting medium to perform thermal management on a specified part of the transportation device;
• and
• exchange heat with the air-conditioning system to selectively transfer heat generated by the specified part to the air-conditioning system at least when the air-conditioning system is in a heating state, to provide at least a partial heat source for an evaporation process of the air-conditioning system;
• an auxiliary heater, wherein the auxiliary heater is configured to selectively replenish heat for the thermal management loop;
• a control module, wherein the control module is configured to control, in response to the heat generated by the specified part not meeting a heat supply demand of the air-conditioning system, the auxiliary heater to replenish heat for the thermal management loop;
• and
• a thermal management switching component;
• wherein:
• the thermal management loop comprises at least two thermal management sub-loops, the at least two thermal management sub-loops are configured to perform thermal management on different specified parts;
• the control module is configured to control the thermal management switching component to selectively switch a heat exchange relationship between the at least two thermal management sub-loops and the air-conditioning system;
• the specified part comprises the battery module and a motor module of the transportation device, and the at least two thermal management sub-loops comprise a first thermal management sub-loop and a second thermal management sub-loop;
• the first thermal management sub-loop is configured to perform thermal management on the battery module, and comprises a first main heat exchange zone for heat exchange with the battery module and the auxiliary heat exchange zone for heat exchange with the auxiliary heater;
• the second thermal management sub-loop is configured to perform thermal management on the motor module and comprises a second main heat exchange zone for heat exchange with the motor module and an external heat exchanger for heat exchange with an external environment;
• and
• the control module is further configured to control, in response to the air-conditioning system being in the heating state, the thermal management switching component to switch at least one of the first thermal management sub-loop and the second thermal management sub-loop to exchange heat with the air-conditioning system;
• and
• wherein:
• the first thermal management sub-loop further comprises a first flow distribution component and a first bypass line connected in parallel with the first main heat exchange zone, and wherein the control module is further configured to control, based on the heat supply demand of the specified part and the heat supply demand of the air-conditioning system, the first flow distribution component to perform flow distribution on a first heat-conducting medium in the first thermal management sub-loop between the first main heat exchange zone and the first bypass line;
• or
• the second thermal management sub-loop further comprises a second flow distribution component and a second bypass line connected in parallel with the external heat exchanger, and wherein the control module is further configured to control, based on a heat dissipation demand of the motor module, the heat supply demand of the air-conditioning system, or the external environment of the external heat exchanger, the second flow distribution component to perform flow distribution on a first heat-conducting medium in the second thermal management sub-loop between the external heat exchanger and the second bypass line.