Thermal management architecture and new energy vehicle

Abstract

The utility model provides a heat management framework and a new energy vehicle, which belong to the technical field of vehicle heat management systems and comprise a heat pump heat absorption main loop, a battery loop, a heat pump waste heat branch, an auxiliary heat exchange branch, a first on-off control module and a second on-off control module. The two-stage compression heat pump is formed to replace an electric heater to heat the power battery, so that the problem of high energy consumption caused by battery heating due to the arrangement of the electric heater is avoided. And by arranging the second on-off control module and the heat pump waste heat branch, the purpose of heating the power battery by utilizing the heat pump waste heat is achieved. The waste heat of the motor and each electric appliance module is transmitted to the power battery through the motor waste heat branch, so that the waste heat is fully utilized. By arranging the first bypass branch and the third on-off control module, the scheme of the two-stage compression heat pump and the scheme of the single-stage compression heat pump can be selectively adopted according to the external environment and the specific heating requirement. And by arranging a fourth on-off control module, the expansion of more scenes is realized, and the full utilization of waste heat is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle thermal management system technical field, concretely relates to a thermal management framework and new energy vehicle. BACKGROUND

[0002] With the continuous development of new energy industry, the proportion of new energy vehicles in the market is increasing year by year. New energy vehicles mainly include hybrid models and pure electric models. The two models have the problem of range attenuation in winter, and the heating demand in winter comes from the heating of power batteries and the heating of passenger compartments. In order to achieve effective heating, an electric heater is often provided in the existing thermal management framework to assist heating. The energy source of high-power and high-cost electric heating is the power battery, which makes the already insufficient battery energy storage even more difficult. SUMMARY

[0003] The utility model embodiment provides a kind of thermal management framework and new energy vehicle, to solve the problem of the existing new energy vehicle winter vehicle heating power consumption.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0005] In the first aspect, the utility model embodiment provides a kind of thermal management framework, comprising:

[0006] Heat pump heat absorption main circuit, battery circuit, heat pump waste heat branch, auxiliary heat exchange branch, first on-off control module and second on-off control module;

[0007] The heat pump heat absorption main circuit includes first compressor, second compressor and outdoor heat exchanger connected in series, and the outdoor heat exchanger is used for heat exchange with external environment;

[0008] The battery circuit includes battery heat exchanger and power battery connected in series, and the battery heat exchanger is connected with the heat pump heat absorption main circuit;

[0009] The heat pump waste heat branch has heat pump heat exchanger, and the heat pump waste heat branch is connected with the heat pump heat absorption main circuit through second on-off control module, and the second on-off control module can make the heat pump waste heat branch and the heat pump heat absorption main circuit communicate to form a circulation loop;

[0010] The heat pump heat exchanger is connected with the auxiliary heat exchange branch, and the battery circuit is connected with the auxiliary heat exchange branch through the first on-off control module, and the first on-off control module can make the battery circuit and the auxiliary heat exchange branch communicate to form a circulation loop.

[0011] The existing heat management architecture is difficult to quickly raise the temperature in the vehicle and the temperature of the power battery when the air conditioner is insufficient in heating in winter. In order to shorten the warm-up time and improve the heating efficiency of the passenger compartment, an electric heater is often added in the corresponding area. The electric heater has high energy consumption, consumes a large amount of power during heating, and has a great impact on the battery power. Compared with the prior art, the scheme shown in the embodiments of the present application has the following advantages. Firstly, in the heat pump heat absorption main circuit, the first compressor and the second compressor cooperate to form a two-stage compression heat pump. The low-temperature refrigerant is pressurized and heated by the first compressor through single-stage compression, and then enters the second compressor for secondary compression to generate refrigerant vapor with higher temperature. The refrigerant vapor is then exchanged with the external environment through the outdoor heat exchanger, so that the heat pump heat absorption main circuit utilizes the two-stage compression heat pump to generate high heat energy in a low-temperature environment (for example, an environment temperature below -10℃). The generated heat energy is transmitted to the power battery through the battery heat exchanger, thereby replacing the electric heater to heat the power battery, avoiding the problem of high energy consumption caused by the battery heating with the electric heater. Secondly, by setting the second on-off control module and the heat pump waste heat branch, the waste heat can be guided to the heat pump heat exchanger through the second on-off control module when the compression heat pump has working waste heat. The heat pump heat exchanger can conduct heat to the auxiliary heat exchange branch. After the battery circuit and the auxiliary heat exchange branch are connected to form a circulation loop, the waste heat energy absorbed by the auxiliary heat exchange branch is transmitted to the power battery, achieving the purpose of heating the power battery with the heat pump waste heat, further reducing the working energy consumption of the heat pump heat absorption main circuit, and further optimizing the energy consumption.

[0012] In combination with the first aspect, in a possible implementation manner, the heat management architecture further includes a motor waste heat branch, and the battery circuit is provided with a power battery, and the motor waste heat branch is connected in parallel with the power battery to heat the power battery using motor waste heat. The motor waste heat branch transmits the waste heat of the motor and each electric module to the power battery, thereby achieving full utilization of the waste heat and further reducing the heating energy consumption.

[0013] With reference to the first aspect, in a possible implementation manner, the thermal management architecture further includes a first bypass branch and a third on-off control module, one end of the first bypass branch is connected between the first compressor and the second compressor, and the third on-off control module is arranged at the connection position, and the other end of the first bypass branch is connected to the outlet side of the second compressor, and the third on-off control module can form a series loop of the first compressor and the outdoor heat exchanger. By arranging the first bypass branch and the third on-off control module, when the ambient temperature is relatively high, the third on-off control module is opened, and the heat exchange medium in the heat pump heat absorption main loop flows to the outdoor heat exchanger without entering the second compressor after flowing through the first compressor, to form a single-stage compression heat pump. The double-stage compression heat pump and the single-stage compression heat pump scheme can be selectively used according to the external environment and specific heating demand, to further reduce the working energy consumption of the heat pump heat absorption main loop, and to further optimize the energy consumption.

[0014] With reference to the first aspect, in some embodiments, the second on-off control module is arranged between the first compressor and the second compressor. By using the single-stage compression heat pump to heat the motor or the power battery, and cooling the high-temperature and high-pressure refrigerant into low-temperature and high-pressure refrigerant, and then performing two-stage compression through the two-stage compressor, the refrigerant compression energy and the air conditioning enthalpy difference can be increased, so that the double-stage compression heat pump can ensure the reliability of heating in a low-temperature environment.

[0015] In some embodiments, the heat pump heat absorption main loop further includes a water-cooled condenser arranged between the second compressor and the outdoor heat exchanger.

[0016] The thermal management architecture further includes a passenger cabin heating loop, and the passenger cabin heating loop is in heat exchange connection with the heat pump heat absorption main loop through the water-cooled condenser.

[0017] The water-cooled condenser is used as a heat exchanger in the heating process, to realize efficient heating of the passenger cabin heating loop. In summer, the first compressor, the second compressor and the water-cooled condenser can also be used as part of the air conditioning refrigeration loop, so that the heat pump heat absorption main loop has stronger function diversity and higher integration, which is beneficial to simplify the overall structure of the architecture and further optimize the use effect.

[0018] In some embodiments, the passenger cabin heating circuit is further connected with a second bypass branch and a sixth on-off control module, the second bypass branch is connected to the passenger cabin heating circuit and is in parallel with the water-cooled condenser, the sixth on-off control module is arranged on the second bypass branch, and the sixth on-off control module can make the water-cooled condenser and the second bypass branch conductive in an alternative manner. When the heat pump waste heat or the motor waste heat is used for heating, the second bypass branch is selected to conduct the heat exchange medium, the heat exchange medium is prevented from flowing to the condenser, the path length of the heat exchange medium flowing in the passenger cabin heating circuit is shortened to the maximum extent, heat loss is reduced, and heating efficiency is improved.

[0019] In some embodiments, a fourth on-off control module is arranged between the passenger cabin heating circuit and the auxiliary heat exchange branch, and the fourth on-off control module can make the passenger cabin heating circuit and the auxiliary heat exchange branch communicate to form a circulating loop. By arranging the fourth on-off control module, more scenarios can be expanded, for example, in the case of using the heat pump waste heat, the fourth control is used to connect the passenger cabin heating circuit and the auxiliary heat exchange branch, so that the heater core in the passenger cabin heating circuit can realize heat exchange with the heat pump heat exchanger, and the waste heat can be fully utilized.

[0020] In some embodiments, the thermal management architecture further comprises a motor waste heat branch, a power battery is arranged in the battery circuit, the motor waste heat branch is connected in parallel with the power battery, and the first on-off control module is arranged on the battery circuit at a position on the outlet side of the motor waste heat branch.

[0021] The first on-off control module and the fourth on-off control module cooperate to make the motor waste heat branch, the auxiliary heat exchange branch and the passenger cabin heating circuit communicate in sequence to form a circulating loop.

[0022] Through cooperation of the first on-off control module and the fourth on-off control module, the passenger cabin heating circuit, the auxiliary heat exchange branch and the motor waste heat circuit form a large circulating loop, the effect of using the motor waste heat to heat the heater core is realized, and the use scenarios are further enriched.

[0023] In some embodiments, the thermal management architecture further comprises an engine heat exchange branch and a fifth on-off control module, and the engine heat exchange branch is connected to the passenger cabin heating circuit through the fifth on-off control module.

[0024] The fifth on-off control module can make the heater core in the passenger cabin heating circuit and the engine in the engine heat exchange branch form a series loop.

[0025] The fifth on-off control module can further enrich the use mode of the whole thermal management architecture, further meet the purpose of realizing different heating scenarios according to different needs, and optimize the heat utilization rate.

[0026] In some embodiments, the engine is further connected with a supercharger heat exchange branch and an exhaust gas recirculation heat exchange branch, the supercharger heat exchange branch and the exhaust gas recirculation heat exchange branch are connected in parallel, and downstream ends of the supercharger heat exchange branch and the exhaust gas recirculation heat exchange branch are connected to the inlet side of the engine. The integration of the supercharger heat exchange branch and the exhaust gas recirculation heat exchange branch realizes the heating of the passenger compartment and the power battery by simultaneously using the heat generated by the engine, the heat generated by the turbocharger and the heat of the exhaust gas recirculation pipeline, realizes the full utilization of the waste heat of the engine module, and maximally reduces the heating energy consumption.

[0027] In a second aspect, the utility model embodiment further provides a new energy vehicle, including the heat management framework.

[0028] Compared with the prior art, the scheme shown in the embodiment of the application effectively reduces the energy consumption of heating the power battery in winter, improves the adverse effects of heating on the winter range, and improves the product competitiveness by adopting the heat management framework. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The heat management framework provided for the first embodiment of the utility model Figure 1 The heat management framework is a heat management framework of a hybrid vehicle type.

[0030] Figure 2 The heat management framework provided for the first embodiment of the utility model Figure 2 The heat management framework is a heat management framework of a hybrid vehicle type.

[0031] Figure 3 The heat management framework provided for the first embodiment of the utility model is a heat management framework of a pure electric vehicle type.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 001, heat pump heat absorption main circuit; 002, battery circuit; 003, motor waste heat branch; 004, first bypass branch; 005, heat pump waste heat branch; 006, auxiliary heat exchange branch; 007, passenger cabin heating circuit; 008, second bypass branch; 009, engine heat exchange branch; 010, supercharger heat exchange branch; 011, exhaust gas recirculation heat exchange branch; 1, first compressor; 2, second compressor; 3, outdoor heat exchanger; 4, battery heat exchanger; 5, power battery; 6, third on-off control module; 7, first on-off control module; 8, second on-off control module; 9, heat pump heat exchanger; 10, water-cooled condenser; 11, sixth on-off control module; 12, fourth on-off control module; 13, fifth on-off control module; 14, heater core; 15, engine; 16, three-way valve G; 17, three-way valve H; 18, three-way Q; 19, three-way P; 20, stop valve C; 21, three-way G; 22, expansion valve B; 23, three-way valve B; 24, three-way E; 25, expansion valve A; 26, three-way valve F; 27, stop valve A; 28, three-way J; 29, gas-liquid separator; 30, battery water pump; 31, check valve A; 32, electronic control module; 33, P2 motor; 34, microcontroller; 35, P4 motor; 36, oil cooler; 37, three-way valve A; 38, three-way D; 39, three-way B; 40, heater water pump; 41, three-way M; 42, three-way valve D; 43, three-way O; 44, three-way N; 45, three-way valve E; 46, engine water pump; 47, thermostat; 48, motor water pump; 49, three-way valve J; 50, three-way A. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical schemes and beneficial effects of the utility model clearer, the utility model will be described in further detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and do not limit the utility model.

[0035] In the claims, description and above drawings of the utility model, unless otherwise explicitly limited, the terms such as "first", "second" or "third" are used only to distinguish different objects, and are not used to describe a specific order.

[0036] In the claims, the specification, and the drawings of the present application, unless otherwise expressly specified, all of the words in which the terms such as "central", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise", "high", "low", etc. indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as limiting the specific protection scope of the present application.

[0037] In the claims, the specification, and the drawings of the present application, unless otherwise expressly specified, the term "fixedly connected" or "fixedly connected" should be understood in a broad sense, that is, any connection mode without displacement relationship and relative rotation relationship between the two, that is, it includes non-detachable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements.

[0038] In the claims, the specification, and the drawings of the present application, the terms "including", "having" and their variants are intended to mean "including but not limited to".

[0039] Please refer to Figure 1 and Figure 2 , the heat management architecture provided by the present application will be described. The heat management architecture comprises a heat pump heat absorption main circuit 001, a battery circuit 002, a heat pump waste heat branch 005, an auxiliary heat exchange branch 006, a first on-off control module 7 and a second on-off control module 8; the heat pump heat absorption main circuit 001 comprises a first compressor 1, a second compressor 2 and an outdoor heat exchanger 3 connected in series, and the outdoor heat exchanger 3 is used for heat exchange with the external environment; the battery circuit 002 comprises a battery heat exchanger 4 and a power battery 5 connected in series, and the battery heat exchanger 4 is in heat exchange connection with the heat pump heat absorption main circuit 001; the heat pump waste heat branch 005 has a heat pump heat exchanger 9, and the heat pump waste heat branch 005 is connected with the heat pump heat absorption main circuit 001 through the second on-off control module 8, and the second on-off control module 8 can make the heat pump waste heat branch 005 and the heat pump heat absorption main circuit 001 communicate to form a circulating loop. The heat pump heat exchanger 9 is in heat exchange connection with the auxiliary heat exchange branch 006, the battery circuit 002 is connected with the auxiliary heat exchange branch 006 through the first on-off control module 7, and the first on-off control module 7 can make the battery circuit 002 and the auxiliary heat exchange branch 006 communicate to form a circulating loop.

[0040] The existing heat management architecture, when heating in winter, the air conditioner heating capacity is insufficient, and it is often difficult to quickly raise the temperature in the vehicle and the power battery temperature. In order to shorten the warm-up time and improve the heating efficiency of the passenger compartment, an electric heater is often added in the corresponding area. The energy consumption of the electric heater is high, and the power consumption is large during heating, which has a great impact on the battery power.

[0041] To solve the above problems, the heat management architecture provided by the embodiment, compared with the prior art, first, in the heat pump heat absorption main circuit 001, the first compressor 1 and the second compressor 2 cooperate to form a two-stage compression heat pump. The low-temperature refrigerant is compressed and heated by the first compressor 1 to realize single-stage compression, and then enters the second compressor 2 for secondary compression to generate refrigerant vapor with higher temperature. The refrigerant vapor is then exchanged with the external environment through the outdoor heat exchanger 3, so that the heat pump heat absorption main circuit 001 utilizes the two-stage compression heat pump to generate higher heat energy in a low-temperature environment (for example, an environment temperature below -10℃). The generated heat energy is transmitted to the power battery 5 through the battery heat exchanger 4, thereby replacing the electric heater to heat the power battery 5, avoiding the problem of high energy consumption caused by the battery heating with the electric heater. Second, by setting the second on-off control module 8 and the heat pump waste heat branch 005, in the case that the compression heat pump has working waste heat, the second on-off control module 8 can guide the waste heat to the heat pump heat exchanger 9. The heat pump heat exchanger 9 can conduct heat to the auxiliary heat exchange branch 006. Based on this, the first on-off control module 7 makes the battery circuit 002 and the auxiliary heat exchange branch 006 communicate to form a circulating loop. The waste heat energy absorbed by the auxiliary heat exchange branch 006 is transmitted to the power battery 5, achieving the purpose of heating the power battery 5 with the heat pump waste heat, further reducing the working energy consumption of the heat pump heat absorption main circuit 001, and realizing further optimization of energy consumption.

[0042] In some embodiments, referring to Figure 2 , the heat management architecture further includes a motor waste heat branch 003, the motor waste heat branch 003 is provided with a power battery 5, and the battery circuit 002 is connected in parallel with the power battery 5 to transmit the motor waste heat to the power battery 5 through the battery heat exchanger 4. The motor waste heat branch 003 transmits the motor and each electric module waste heat to the power battery 5, realizing full utilization of waste heat and being conducive to further reducing the heating energy consumption. The motor waste heat branch 003 can cooperate with the two-stage compression heat pump to heat the power battery 5 when the two-stage compression heat pump heats the power battery 5, or can heat the power battery 5 alone when the two-stage compression heat pump does not work.

[0043] In some embodiments, referring to Figure 2The heat management architecture further comprises a first bypass branch 004 and a third on-off control module 6. One end of the first bypass branch 004 is connected between the first compressor 1 and the second compressor 2, and the third on-off control module 6 is arranged at the connection. The other end of the first bypass branch 004 is connected to the outlet side of the second compressor 2. The third on-off control module 6 can form a series loop of the first compressor 1 and the outdoor heat exchanger 3. By arranging the first bypass branch 004 and the third on-off control module 6, when the ambient temperature is relatively high, the third on-off control module 6 is opened, and the heat exchange medium in the heat pump heat absorption main loop 001 flows to the outdoor heat exchanger 3 without entering the second compressor 2 after flowing through the first compressor 1, forming a single-stage compression heat pump. In this way, the two-stage compression heat pump and the single-stage compression heat pump scheme can be selectively used according to the external environment and specific heating requirements, further reducing the working energy consumption of the heat pump heat absorption main loop 001, and realizing further optimization of energy consumption.

[0044] It should be noted that, in the case where the heat pump waste heat is not needed to be utilized, the first on-off control module 7 can keep the battery loop 002 and the auxiliary heat exchange branch 006 in a disconnected state, and the battery loop 002 is closed for circulation by itself.

[0045] On the basis of the above implementation, referring to Figure 2 The second on-off control module 8 is arranged between the first compressor 1 and the second compressor 2, so that the inlet end and the outlet end of the heat pump waste heat branch 005 are located between the first compressor 1 and the second compressor 2. The temperature of the refrigerant is raised by a single-stage compression heat pump (i.e., the first compressor 1) to obtain high-temperature and high-pressure refrigerant. The high-temperature and high-pressure refrigerant exchanges heat with the auxiliary heat exchange branch 006 to heat the heat exchange medium in the auxiliary heat exchange branch 006. Subsequently, the high-temperature and high-pressure refrigerant is cooled to low-temperature and high-pressure refrigerant, and the low-temperature and high-pressure refrigerant is subjected to two-stage compression by a two-stage compressor (i.e., the second compressor 2) to increase the compression energy of the refrigerant and the air conditioning enthalpy difference, so that the temperature of the refrigerant is further raised, and the two-stage compression heat pump can ensure the reliability of heating in a low-temperature environment.

[0046] Of course, the second on-off control module 8 can also be arranged at the outlet side of the second compressor 2, so that the inlet end and the outlet end of the heat pump waste heat branch 005 are located at the outlet side of the second compressor 2. After the high-temperature and high-pressure refrigerant subjected to two-stage compression exchanges heat with the auxiliary heat exchange branch 006, the high-temperature and high-pressure refrigerant returns to the heat pump heat absorption main loop 001, which can also meet the heating requirements.

[0047] In some embodiments, referring to Figure 2, the heat pump heat absorption main circuit 001 further comprises a water-cooled condenser 10 arranged between the second compressor 2 and the outdoor heat exchanger 3, and the water-cooled condenser 10 is arranged to improve the local heat exchange efficiency of the heat pump heat absorption main circuit 001. Based on this, the heat management architecture further comprises a passenger cabin heating circuit 007, and the passenger cabin heating circuit 007 is in heat exchange connection with the water-cooled condenser 10. In the heating process, the water-cooled condenser 10 is used as a heat exchanger to achieve efficient heating of the passenger cabin heating circuit 007, further optimizing the use effect.

[0048] Based on the above-mentioned embodiments, referring to Figure 2 , the passenger cabin heating circuit 007 is further connected with a second bypass branch 008 and a sixth on-off control module 11, the second bypass branch 008 is connected to the passenger cabin heating circuit 007 and is in parallel connection with the water-cooled condenser 10, and the sixth on-off control module 11 is arranged on the second bypass branch 008. The sixth on-off control module 11 can make the water-cooled condenser 10 and the second bypass branch 008 conductive at the same time. When using the heat pump waste heat (i.e. achieving heat exchange through the heat pump waste heat branch 005) or the motor waste heat for heating, the second bypass branch 008 is selected to conduct the heat exchange medium, so as to avoid the flow of the heat exchange medium to the condenser, maximize the length of the path of the heat exchange medium in the passenger cabin heating circuit 007, reduce the heat loss, and improve the heating efficiency. Of course, it is also possible to select the heat exchange medium to flow through the water-cooled condenser 10 when using the waste heat for heating, which is not limited herein.

[0049] Optionally, the implementation mode of the sixth on-off control module 11 includes but is not limited to the following modes: 1) the sixth on-off control module 11 includes a valve (such as a three-way valve) arranged at the liquid inlet end of the second bypass branch 008, directly controlling whether the second bypass branch 008 is liquid; 2) the sixth on-off control module 11 includes a valve (such as a three-way valve) arranged at the liquid outlet end of the second bypass branch 008, as shown in Figure 1 and Figure 2 , realizing the end conduction control of the second bypass branch 008; 3) the sixth on-off control module 11 includes two valves (such as three-way valves) arranged at the liquid inlet end and the liquid outlet end of the second bypass branch 008 respectively, simultaneously controlling the liquid inlet and the liquid outlet.

[0050] In some embodiments, referring to Figure 2The fourth on-off control module 12 is arranged between the passenger cabin heating loop 007 and the auxiliary heat exchange branch 006, and the fourth on-off control module 12 can make the passenger cabin heating loop 007 and the auxiliary heat exchange branch 006 communicate to form a circulation loop. By arranging the fourth on-off control module 12, more scenarios can be expanded. For example, in the case of utilizing the heat pump waste heat (i.e., heat exchange is realized through the heat pump waste heat branch 005), the fourth on-off control module 12 is used to communicate the passenger cabin heating loop 007 and the auxiliary heat exchange branch 006, so that the warm air core 14 in the passenger cabin heating loop 007 can realize heat exchange with the heat pump heat exchanger 9, and the waste heat can be fully utilized.

[0051] In some embodiments, referring to Figure 2 The thermal management architecture further includes a motor waste heat branch 003, the battery circuit 002 is provided with a power battery 5, the motor waste heat branch 003 is connected in parallel with the power battery 5, and the first on-off control module 7 is arranged in the battery circuit 002 at a position on the outlet side of the motor waste heat branch 003; the first on-off control module 7 cooperates with the fourth on-off control module 12 to make the motor waste heat branch 003, the auxiliary heat exchange branch 006 and the passenger cabin heating loop 007 communicate in sequence to form a circulation loop. By cooperation of the first on-off control module 7 and the fourth on-off control module 12, the passenger cabin heating loop 007, the auxiliary heat exchange branch 006 and the motor waste heat circuit form a large circulation loop, the effect of utilizing the motor waste heat to heat the warm air core 14 is realized, and the use scenarios are further enriched.

[0052] The above embodiments can be applied to thermal management of pure electric vehicles, and can also be applied to thermal management of hybrid vehicles. If the engine module in the hybrid vehicle needs to be included in the thermal management architecture, in some embodiments, referring to Figure 2, the heat management architecture further comprises an engine heat exchange branch 009 and a fifth on-off control module 13, the engine heat exchange branch 009 is connected to the passenger cabin heating loop 007 through the fifth on-off control module 13; the fifth on-off control module 13 can form a series loop between the heater core 14 in the passenger cabin heating loop 007 and the engine 15 in the engine heat exchange branch 009. In this way, the fifth on-off control module 13 forms a series loop between the heater core 14 and the engine 15, achieving the purpose of heating the heater core 14 with the heat energy of the engine 15; or, the fifth on-off control module 13 cooperates with the fourth on-off control module 12, and the communication state of the engine heat exchange branch 009 and the passenger cabin heating loop 007, after the series loop is formed between the heater core 14 and the engine 15, the series loop can be communicated with the auxiliary heat exchange branch 006, achieving the heat exchange between the heater core 14 and the engine 15 and the heat pump heat exchanger 9, achieving the purpose of heating the engine 15 and the heater core 14 with the heat pump waste heat (i.e. heat exchange through the heat pump waste heat branch 005); or, the fifth on-off control module 13 cooperates with the first on-off control module 7 and the fourth on-off control module 12, forming a large circulation loop between the series loop, the auxiliary heat exchange branch 006 and the motor waste heat loop, achieving the effect of heating the heater core 14 with the motor waste heat; or, the fifth on-off control module 13 cooperates with the first on-off control module 7 and the fourth on-off control module 12, forming a large circulation loop between the series loop, the auxiliary heat exchange branch 006 and the battery loop 002, achieving the purpose of heating the battery and the heater core 14 with the heat energy of the engine 15. It can be seen that the fifth on-off control module 13 can further enrich the use mode of the whole heat management architecture, further meet the purpose of realizing different heating scenes according to different needs, and optimize the heat energy utilization rate.

[0053] In some embodiments, referring to Figure 2 , the engine 15 is further connected with a supercharger heat exchange branch 010 and an exhaust gas recirculation heat exchange branch 011, the supercharger heat exchange branch 010 and the exhaust gas recirculation heat exchange branch 011 are connected in parallel, and the downstream ends of the supercharger heat exchange branch 010 and the exhaust gas recirculation heat exchange branch 011 are connected to the inlet side of the engine 15. The heat management architecture of the embodiment integrates the supercharger heat exchange branch 010 and the exhaust gas recirculation heat exchange branch 011, achieving the heating of the passenger cabin and the power battery 5 with the heat generated by the engine 15, the turbocharger and the exhaust gas recirculation pipeline, realizing the full utilization of the waste heat of the engine 15 and the maximum reduction of heating energy consumption.

[0054] In combination with the foregoing various scenarios, when the power battery 5 needs to be heated, a heat pump, motor waste heat, or a single-stage compressor can be used for heating. In different ambient temperatures and working conditions, a single-stage or two-stage compression heat pump is used to make the power battery 5 reach the appropriate working temperature more quickly. The motor has a heat preservation effect and can store heat. When the temperature is appropriate, the heat can be transferred to the power battery 5 or the heat pump. In addition, when the vehicle battery and the passenger compartment need to be heated at the same time, the heat pump, two-stage compression heat pump waste heat, engine 15 heat, and EGR waste heat can be used to heat the passenger compartment at the same time, greatly reducing the consumption of power battery 5 electric energy by air conditioning heating and battery heating, thereby improving the vehicle's endurance.

[0055] In specific implementation, the setting modes of various circuits and branches are as follows:

[0056] The first compressor 1, three-way valve G16, three-way valve H17, three-way Q18, second compressor 2, three-way P19, water-cooled condenser 10, stop valve C20, three-way G21, expansion valve B22, battery heat exchanger 4, three-way valve B23, three-way E24, expansion valve A25, outdoor heat exchanger 3, three-way valve F26, stop valve A27, three-way J28, and gas-liquid separator 29 are sequentially connected in series in the heat pump heat absorption main circuit 001.

[0057] The battery water pump 30, power battery 5, and one-way valve A31 are sequentially connected in series in the battery circuit 002.

[0058] The three-way A50, motor water pump 48, electronic control module 32, P2 motor 33, microcontroller 34, P4 motor 35, oil cooler 36, and three-way valve J49 are sequentially connected in series in the motor waste heat branch 003. The three-way valve J49 is connected to the battery circuit 002 through the three-way D38, and the motor water pump 48 is connected to the battery circuit 002 through the three-way B39. The electronic control module 32 includes a power distribution unit (PDU), an on-board diagnostic system (OBC), a DC / DC converter, and the like.

[0059] The heater water pump 40, heater core 14, three-way valve A37, three-way M41, three-way valve D42, three-way O43, three-way N44, water-cooled condenser 10, and three-way valve E45 are sequentially connected in series in the passenger compartment heating circuit 007.

[0060] The engine water pump 46, engine 15, and thermostat 47 are sequentially connected in series in the engine heat exchange branch 009.

[0061] The first on-off control module 7 is a multi-way valve, having valve ports K1, K2, K3 and K4, wherein the battery circuit 002 is connected to the valve ports K1 and K3, and the auxiliary heat exchange branch 006 is connected to the valve ports K2 and K4. The first on-off control module 7 has a first state and a second state. In the first state, the valve ports K1 and K3 are communicated, and the valve ports K2 and K4 are communicated, and the battery circuit 002 is disconnected from the auxiliary heat exchange branch 006, and each performs a circulation. In the second state, the valve ports K1 and K4 are communicated, and the valve ports K2 and K3 are communicated, and the battery circuit 002 is connected to the auxiliary heat exchange branch 006, forming a large circulation loop.

[0062] The second on-off control module 8 includes a three-way valve H17 and a three-way valve Q18. The three-way valve H17 has valve ports H1, H2 and H3, the valve ports H1 and H2 are respectively connected to the heat pump heat absorption main circuit 001, and the valve port H3 is connected to the upstream end of the heat pump waste heat branch 005. The three-way valve Q18 is arranged on the outlet side of the three-way valve H17, and its three ports are respectively connected to the heat pump heat absorption main circuit 001 and the downstream end of the heat pump waste heat branch 005.

[0063] The third on-off control module 6 includes a three-way valve G16 and a three-way valve P19. The three-way valve G16 has valve ports G1, G2 and G3, the valve ports G1 and G2 are respectively connected to the heat pump heat absorption main circuit 001, and the valve port G3 is connected to the upstream end of the first bypass branch 004. The three-way valve P19 is arranged on the outlet side of the three-way valve G16, and its three ports are respectively connected to the heat pump heat absorption main circuit 001 and the downstream end of the first bypass branch 004.

[0064] The fourth on-off control module 12 includes a three-way valve A37 and a three-way valve M41. The three-way valve A37 has valve ports A1, A2 and A3, the valve ports A1 and A2 are respectively connected in the passenger compartment heating circuit 007, and the valve port A3 is connected to the auxiliary heat exchange branch 006. The three-way valve M41 is arranged on the outlet side of the three-way valve A37, and its three ports are respectively connected to the passenger compartment heating circuit 007 and the auxiliary heat exchange branch 006.

[0065] The fifth on-off control module 13 includes a three-way valve D42 and a thermostat 47. The three-way valve D42 has valve ports D1, D2 and D3, the valve ports D1 and D2 are respectively connected in the passenger compartment heating circuit 007, and the thermostat 47 is arranged on the outlet side of the engine 15. The thermostat 47 and the passenger compartment heating circuit 007 are connected through a three-way valve O43.

[0066] The sixth on-off control module 11 includes a three-way valve E45 having valve ports E1, E2 and E3, the valve ports E1 and E3 being connected to the passenger cabin heating circuit 007 respectively, and the valve port E2 being connected to the downstream end of the second bypass branch 008, and a three-way valve N44 having three ports connected to the passenger cabin heating circuit 007 and the upstream end of the second bypass branch 008 respectively.

[0067] The specific use modes of the thermal management architecture of the present application are as follows:

[0068] 1. When the ambient temperature is low (for example, lower than -10℃), the dual-stage compression heat pump quickly generates heat to absorb the ambient temperature to heat the battery. The flow path of the medium in the heat pump heat absorption main circuit 001 is: the first compressor 1 → the three-way valve G16 (the valve ports G1 and G3 are connected) → the three-way valve H17 (the valve ports H1 and H2 are connected) → the three-way valve Q18 → the second compressor 2 → the three-way valve P19 → the water-cooled condenser 10 → the stop valve C20 → the three-way valve G21 → the expansion valve B22 → the battery heat exchanger 4 → the three-way valve B23 (the valve ports B1 and B3 are connected) → the three-way valve E24 → the expansion valve A25 → the outdoor heat exchanger 3 → the three-way valve F → the stop valve A27 → the three-way valve J28 → the gas-liquid separator 29 → the first compressor 1. The flow path of the medium in the battery circuit 002 is: the battery water pump 30 → the power battery 5 → the one-way valve A31 → the three-way valve D38 → the valve port K1 → the valve port K3 → the battery heat exchanger 4 → the battery water pump 30.

[0069] 2. When the dual-stage compression heat pump has excess heat, the excess heat of the dual-stage compression heat pump is used to heat the power battery 5. The flow path of the medium in the heat pump heat absorption main circuit 001 is: the first compressor 1 → the three-way valve G16 (the valve ports G1 and G3 are connected) → the three-way valve H17 (the valve ports H1 and H3 are connected) → the heat pump heat exchanger 9 → the three-way valve Q18 → the second compressor 2 → the three-way valve P19 → the water-cooled condenser 10 → the stop valve C20 → the three-way valve G21 → the expansion valve B22 → the battery heat exchanger 4 → the three-way valve B23 (the valve ports B1 and B3 are connected) → the three-way valve E24 → the expansion valve A25 → the outdoor heat exchanger 3 → the three-way valve F → the stop valve A27 → the three-way valve J28 → the gas-liquid separator 29 → the first compressor 1. The flow path of the medium in the battery circuit 002 is: the battery water pump 30 → the power battery 5 → the one-way valve A31 → the three-way valve D38 → the valve port K3 → the valve port K2 → the heat pump heat exchanger 9 → the three-way valve M41 → the three-way valve A37 (the valve ports A2 and A3 are connected) → the valve port K4 → the valve port K1 → the battery heat exchanger 4 → the battery water pump 30.

[0070] 3. When the ambient temperature is relatively high, the power battery 5 is heated by absorbing the ambient temperature through the single-stage heat pump. The flow path of the medium in the heat pump heat absorption main circuit 001 is: the first compressor 1 → the three-way valve G16 (the valve port G1 and the valve port G2 are conducted) → the three-way P19 → the water-cooled condenser 10 → the stop valve C20 → the three-way valve G16 → the expansion valve B22 → the battery heat exchanger 4 → the three-way valve B23 (the valve port B1 and the valve port B3 are conducted) → the three-way E24 → the expansion valve A25 → the outdoor heat exchanger 3 → the three-way F → the stop valve A27 → the three-way J28 → the gas-liquid separator 29 → the first compressor 1. The flow path of the medium in the battery circuit 002 is: the battery water pump 30 → the power battery 5 → the one-way valve A31 → the three-way D38 → the valve port K3 → the valve port K1 → the battery heat exchanger 4 → the battery water pump 30.

[0071] 4. The power battery is heated by absorbing the motor waste heat through the single-stage compression heat pump. The flow path of the medium in the heat pump heat absorption main circuit 001 is: the first compressor 1 → the three-way valve G16 (the valve port G1 and the valve port G2 are conducted) → the three-way P19 → the water-cooled condenser 10 → the stop valve C20 → the three-way valve G16 → the expansion valve B22 → the battery heat exchanger 4 → the three-way valve B23 (the valve port B1 and the valve port B3 are conducted) → the three-way E24 → the expansion valve A25 → the outdoor heat exchanger 3 → the three-way F → the stop valve A27 → the three-way J28 → the gas-liquid separator 29 → the first compressor 1. The flow path of the medium in the motor waste heat branch 003 is: the motor water pump 48 → the electronic control module 32 → the P2 motor 33 → the microcontroller 34 → the P4 motor 35 → the oil cooler 36 → the three-way valve J49 (the valve port J1 and the valve port J3 are conducted) → the three-way D38 → the valve port K3 → the valve port K1 → the battery heat exchanger 4 → the three-way B39. The flow path of the medium in the battery circuit 002 is: the battery water pump 30 → the power battery 5 → the one-way valve A31 → the three-way D38 → the valve port K3 → the valve port K1 → the battery heat exchanger 4 → the battery water pump 30.

[0072] 5. The power battery 5 is heated by using the motor waste heat. The flow path of the medium in the motor waste heat branch 003 is: the motor water pump 48 → the electronic control module 32 → the P2 motor 33 → the microcontroller 34 → the P4 motor 35 → the oil cooler 36 → the three-way valve J49 (the valve port J1 and the valve port J3 are conducted) → the three-way D38 → the valve port K3 → the valve port K1 → the battery heat exchanger 4 → the three-way B39. The flow path of the medium in the battery circuit 002 is: the battery water pump 30 → the power battery 5 → the one-way valve A31 → the three-way D38 → the valve port K3 → the valve port K1 → the battery heat exchanger 4 → the battery water pump 30.

[0073] 6、Environment temperature is low, two-stage compression heat pump rapid heat production absorbs environment temperature to heat passenger cabin, heat pump heat absorption main circuit 001 medium flow path is: first compressor 1→three-way valve G16 (valve G1 and valve G3 are connected) →three-way valve H17 (valve H1 and valve H2 are connected) →three-way Q18→second compressor 2→three-way P19→water-cooled condenser 10→stop valve C20→three-way G21→expansion valve B22→battery heat exchanger 4→three-way valve B23 (valve B1 and valve B3 are connected) →three-way E24→expansion valve A25→outdoor heat exchanger 3→three-way F→stop valve A27→three-way J28→gas-liquid separator 29→first compressor 1.Passenger cabin heating circuit 007 medium flow path is: warm air water pump 40→warm air core 14→three-way valve A37 (valve A1 and valve A2 are connected) →three-way M41→three-way valve D42 (valve D1 and valve D2 are connected) →three-way O43→three-way N44→water-cooled condenser 10→three-way valve E45 (valve E1 and valve E3 are connected) →warm air water pump 40.

[0074] 7、Two-stage compression heat pump exists excess heat, use its remaining heat to heat passenger cabin, heat pump heat absorption main circuit 001 medium flow path is: first compressor 1→three-way valve G16 (valve G1 and valve G3 are connected) →three-way valve H17 (valve H1 and valve H3 are connected) →heat pump heat exchanger 9→three-way Q18→second compressor 2→three-way P19→water-cooled condenser 10→stop valve C20→three-way G21→expansion valve B22→battery heat exchanger 4→three-way valve B23 (valve B1 and valve B3 are connected) →three-way E24→expansion valve A25→outdoor heat exchanger 3→three-way F→stop valve A27→three-way J28→gas-liquid separator 29→first compressor 1.Passenger cabin heating circuit 007 medium flow path is: warm air water pump 40→warm air core 14→three-way valve A37 (valve A1 and valve A3 are connected) →valve K4→valve K2→heat pump heat exchanger 9→three-way M41→three-way valve D42 (valve D1 and valve D2 are connected) →three-way O43→three-way N44→water-cooled condenser 10→three-way valve E45 (valve E1 and valve E3 are connected) →warm air water pump 40.

[0075] 8、Environment temperature is relatively high, single-stage compression heat pump absorbs ambient temperature for heating passenger cabin, the flow path of medium in the main circuit 001 of heat pump heat absorption is: first compressor 1→three-way valve G16 (valve port G1 and valve port G2 are conducted)→three-way P19→water-cooled condenser 10→stop valve C20→three-way G21→expansion valve B22→battery heat exchanger 4→three-way valve B23 (valve port B1 and valve port B3 are conducted)→three-way E24→expansion valve A25→outdoor heat exchanger 3→three-way F→stop valve A27→three-way J28→gas-liquid separator 29→first compressor 1.The flow path of medium in the passenger cabin heating circuit 007 is: warm air water pump 40→warm air core 14→three-way valve A37 (valve port A1 and valve port A2 are conducted)→three-way M41→three-way valve D42 (valve port D1 and valve port D2 are conducted)→three-way O43→three-way N44→water-cooled condenser 10→three-way valve E45 (valve port E1 and valve port E3 are conducted)→warm air water pump 40.

[0076] 9、Single-stage compression heat pump absorbs motor waste heat to heat passenger cabin, the flow path of medium in the main circuit 001 of heat pump heat absorption is: first compressor 1→three-way valve G16 (valve port G1 and valve port G2 are conducted)→three-way P19→water-cooled condenser 10→stop valve C20→three-way G21→expansion valve B22→battery heat exchanger 4→three-way valve B23 (valve port B1 and valve port B3 are conducted)→three-way E24→expansion valve A25→outdoor heat exchanger 3→three-way F→stop valve A27→three-way J28→gas-liquid separator 29→first compressor 1.The flow path of medium in the motor waste heat branch 003 is: motor water pump 48→electric control module 32→P2 motor 33→microcontroller 34→P4 motor 35→oil cooler 36→three-way valve J49 (valve port J1 and valve port J3 are conducted)→three-way D38→valve port K3→valve port K1→battery heat exchanger 4→three-way B39→motor water pump 48.The flow path of medium in the passenger cabin heating circuit 007 is: warm air water pump 40→warm air core 14→three-way valve A37 (valve port A1 and valve port A2 are conducted)→three-way M41→three-way valve D42 (valve port D1 and valve port D2 are conducted)→three-way O43→three-way N44→water-cooled condenser 10→three-way valve E45 (valve port E1 and valve port E3 are conducted)→warm air water pump 40.

[0077] 10. The passenger cabin is heated by the motor waste heat, the medium flow path is: motor water pump 48→electronic control module 32→P2 motor 33→microcontroller 34→P4 motor 35→oil cooler 36→three-way valve J49(valve port J1 and valve port J3 are connected)→three-way D38→valve port K3→valve port K2→heat pump heat exchanger 9→three-way M41→three-way valve D42(valve port D1 and valve port D2 are connected)→three-way O43→three-way N44→three-way valve E45(valve port E2 and valve port E3 are connected)→warm air pump 40→warm air core 14→three-way valve A37(valve port A1 and valve port A3 are connected)→valve port K4→valve port K1→battery heat exchanger 4→three-way B39→three-way A50→motor water pump 48.

[0078] 11. When the ambient temperature is low, the double-stage compression heat pump quickly produces heat to absorb the ambient temperature, and the power battery 5 and the passenger cabin are heated at the same time. The medium flow path in the heat pump heat absorption main circuit 001 is: first compressor 1→three-way valve G16(valve port G1 and valve port G3 are connected)→three-way valve H17(valve port H1 and valve port H2 are connected)→three-way Q18→second compressor 2→three-way P19→water-cooled condenser 10→stop valve C20→three-way G21→expansion valve B22→battery heat exchanger 4→three-way valve B23(valve port B1 and valve port B3 are connected)→three-way E24→expansion valve A25→outdoor heat exchanger 3→three-way F→stop valve A27→three-way J28→gas-liquid separator 29→first compressor 1. The medium flow path in the battery circuit 002 is: battery water pump 30→power battery 5→one-way valve A31→three-way D38→valve port K3→valve port K1→battery heat exchanger 4→battery water pump 30. The medium flow path in the passenger cabin heating circuit 007 is: warm air pump 40→warm air core 14→three-way valve A37(valve port A1 and valve port A2 are connected)→three-way M41→three-way valve D42(valve port D1 and valve port D2 are connected)→three-way O43→three-way N44→water-cooled condenser 10→three-way valve E45(valve port E1 and valve port E3 are connected)→warm air pump 40.

[0079] 12. When the two-stage compression heat pump has residual heat, it uses its own heat generation to heat the power battery 5 and the residual heat to heat the passenger compartment. The flow path of the medium in the heat pump heat absorption main circuit 001 is as follows: First compressor 1 → Three-way valve G16 (valve port G1 and valve port G3 are connected) → Three-way valve H17 (valve port H1 and valve port H3 are connected) → Heat pump heat exchanger 9 → Three-way valve Q18 → Second compressor 2 → Three-way valve P19 → Water-cooled condenser 10 → Shut-off valve C20 → Three-way valve G21 → Expansion valve B22 → Battery heat exchanger 4 → Three-way valve B23 (valve port B1 and valve port B3 are connected) → Three-way valve E24 → Expansion valve A25 → Outdoor heat exchanger 3 → Three-way valve F → Shut-off valve A27 → Three-way valve J28 → Gas-liquid separator 29 → First compressor 1. The flow path of the medium in battery circuit 002 is as follows: battery water pump 30 → power battery 5 → one-way valve A31 → three-way valve D38 → valve port K3 → valve port K1 → battery heat exchanger 4 → battery water pump 30. The flow path of the medium in crew compartment heating circuit 007 is as follows: heater water pump 40 → heater core 14 → three-way valve A37 (valve ports A1 and A3 are connected) → valve port K4 → valve port K2 → heat pump heat exchanger 9 → three-way valve M41 → three-way valve D42 (valve ports D1 and D2 are connected) → three-way valve O43 → three-way valve N44 → three-way valve E45 (valve ports E2 and E3 are connected) → heater water pump 40.

[0080] 13. When the two-stage compression heat pump has waste heat, it uses the waste heat to heat the power battery 5 and the passenger compartment at the same time. The flow path of the medium in the heat pump heat absorption main circuit 001 is as follows: First compressor 1 → three-way valve G16 (valve port G1 and valve port G3 are connected) → three-way valve H17 (valve port H1 and valve port H3 are connected) → heat pump heat exchanger 9 → three-way valve Q18 → second compressor 2 → three-way valve P19 → water-cooled condenser 10 → shut-off valve C20 → three-way valve G21 → expansion valve B22 → battery heat exchanger 4 → three-way valve B23 (valve port B1 and valve port B3 are connected) → three-way valve E24 → expansion valve A25 → outdoor heat exchanger 3 → three-way valve F → shut-off valve A27 → three-way valve J28 → gas-liquid separator 29 → first compressor 1. The flow path of the medium in battery circuit 002 is as follows: battery water pump 30 → power battery 5 → one-way valve A31 → three-way valve D38 → valve port K3 → valve port K1 → battery heat exchanger 4 → battery water pump 30. The flow path of the medium in crew compartment heating circuit 007 is as follows: heater water pump 40 → heater core 14 → three-way valve A37 (valve ports A1 and A3 are connected) → valve port K4 → valve port K2 → heat pump heat exchanger 9 → three-way valve M41 → three-way valve D42 (valve ports D1 and D2 are connected) → three-way valve O43 → three-way valve N44 → water-cooled condenser 10 → three-way valve E45 (valve ports E1 and E3 are connected) → heater water pump 40.

[0081] 14. When the two-stage compression heat pump has residual heat, it mixes heat to heat the power battery 5 and the passenger compartment. The flow path of the medium in the heat pump heat absorption main circuit 001 is as follows: First compressor 1 → Three-way valve G16 (valve port G1 and valve port G3 are connected) → Three-way valve H17 (valve port H1 and valve port H3 are connected) → Heat pump heat exchanger 9 → Three-way valve Q18 → Second compressor 2 → Three-way valve P19 → Water-cooled condenser 10 → Shut-off valve C20 → Three-way valve G21 → Expansion valve B22 → Battery heat exchanger 4 → Three-way valve B23 (valve port B1 and valve port B3 are connected) → Three-way valve E24 → Expansion valve A25 → Outdoor heat exchanger 3 → Three-way valve F → Shut-off valve A27 → Three-way valve J28 → Gas-liquid separator 29 → First compressor 1. The crew cabin heating circuit 007 and the battery circuit 002 are connected to form a large circulation loop. The flow path of the medium is as follows: heater pump 40 → heater core 14 → three-way valve A37 (valve port A1 and valve port A3 are connected) → valve port K4 → valve port K1 → battery heat exchanger 4 → three-way valve B39 → battery water pump 30 → power battery 5 → one-way valve A31 → three-way valve D38 → valve port K3 → valve port K2 → heat pump heat exchanger 9 → three-way valve M41 → three-way valve D42 (valve port D1 and valve port D2 are connected) → three-way valve O43 → three-way valve N44 → water-cooled condenser 10 → three-way valve E45 (valve port E1 and valve port E3 are connected) → heater pump 40.

[0082] 15. When the two-stage compression heat pump has residual heat, it uses its own heat generation to heat the power battery 5, and uses the residual heat to heat the passenger compartment and engine 15 at the same time. The flow path of the medium in the heat pump heat absorption main circuit 001 is as follows: First compressor 1 → three-way valve G16 (valve port G1 and valve port G3 are connected) → three-way valve H17 (valve port H1 and valve port H3 are connected) → heat pump heat exchanger 9 → three-way valve Q18 → second compressor 2 → three-way valve P19 → water-cooled condenser 10 → shut-off valve C20 → three-way valve G21 → expansion valve B22 → battery heat exchanger 4 → three-way valve B23 (valve port B1 and valve port B3 are connected) → three-way valve E24 → expansion valve A25 → outdoor heat exchanger 3 → three-way valve F → shut-off valve A27 → three-way valve J28 → gas-liquid separator 29 → first compressor 1. The flow path of the medium in battery circuit 002 is as follows: battery water pump 30 → power battery 5 → one-way valve A31 → three-way valve D38 → valve port K3 → valve port K1 → battery heat exchanger 4 → battery water pump 30. The flow path of the medium in the crew cabin heating circuit 007 and the engine heat exchange branch 009 is as follows: heater water pump 40 → heater core 14 → three-way valve A37 (valve port A1 and valve port A3 are connected) → valve port K4 → valve port K1 → battery heat exchanger 4 → three-way valve B39 → battery water pump 30 → power battery 5 → one-way valve A31 → three-way valve D38 → valve port K3 → valve port K2 → heat pump heat exchanger 9 → three-way valve M41 → three-way valve D42 (valve port D1 and valve port D3 are connected) → engine water pump 46 → engine 15 → thermostat 47 → three-way valve O43 → three-way valve N44 → three-way valve E45 (valve port E2 and valve port E3 are connected) → heater water pump 40.

[0083] 16. When the two-stage compression heat pump has residual heat, it uses its own heat generation to heat the power battery 5, and uses the residual heat to heat the passenger compartment and engine 15 at the same time. The flow path of the medium in the heat pump heat absorption main circuit 001 is as follows: First compressor 1 → three-way valve G16 (valve port G1 and valve port G3 are connected) → three-way valve H17 (valve port H1 and valve port H3 are connected) → heat pump heat exchanger 9 → three-way valve Q18 → second compressor 2 → three-way valve P19 → water-cooled condenser 10 → shut-off valve C20 → three-way valve G21 → expansion valve B22 → battery heat exchanger 4 → three-way valve B23 (valve port B1 and valve port B3 are connected) → three-way valve E24 → expansion valve A25 → outdoor heat exchanger 3 → three-way valve F → shut-off valve A27 → three-way valve J28 → gas-liquid separator 29 → first compressor 1. The flow path of the medium in battery circuit 002 is: battery water pump 30 → power battery 5 → one-way valve A31 → three-way valve D38 → valve port K3 → valve port K1 → battery heat exchanger 4 → battery water pump 30. The flow path of the medium in crew compartment heating circuit 007 and engine heat exchange branch 009 is: heater water pump 40 → heater core 14 → three-way valve A37 (valve ports A1 and A3 are connected) → valve port K4 → valve port K1 → heat pump heat exchanger 9 → three-way valve M41 → three-way valve D42 (valve ports D1 and D3 are connected) → engine water pump 46 → engine 15 → thermostat 47 → three-way valve O43 → three-way valve N44 → water-cooled condenser 10 → three-way valve E45 (valve ports E1 and E3 are connected) → heater water pump 40.

[0084] 17. When the two-stage compression heat pump has residual heat, it uses the residual heat to heat the power battery 5, the passenger compartment and the engine 15. The flow path of the medium in the heat pump heat absorption main circuit 001 is as follows: First compressor 1 → three-way valve G16 (valve port G1 and valve port G3 are connected) → three-way valve H17 (valve port H1 and valve port H3 are connected) → heat pump heat exchanger 9 → three-way valve Q18 → second compressor 2 → three-way valve P19 → water-cooled condenser 10 → shut-off valve C20 → three-way valve G21 → expansion valve B22 → battery heat exchanger 4 → three-way valve B23 (valve port B1 and valve port B3 are connected) → three-way valve E24 → expansion valve A25 → outdoor heat exchanger 3 → three-way valve F → shut-off valve A27 → three-way valve J28 → gas-liquid separator 29 → first compressor 1. The flow path of the medium in the crew compartment heating circuit 007 and the engine heat exchange branch 009 is as follows: heater water pump 40 → heater core 14 → three-way valve A37 (valve port A1 and valve port A3 are connected) → valve port K4 → valve port K1 → battery heat exchanger 4 → three-way valve B39 → battery water pump 30 → power battery 5 → one-way valve A31 → three-way valve D38 → valve port K3 → valve port K2 → heat pump heat exchanger 9 → three-way valve M41 → three-way valve D42 (valve port D1 and valve port D3 are connected) → engine water pump 46 → engine 15 → thermostat 47 → three-way valve O43 → three-way valve N44 → water-cooled condenser 10 → three-way valve E45 (valve port E1 and valve port E3 are connected) → heater water pump 40.

[0085] 18. The dual-stage compression heat pump heats the power battery 5, utilizing the waste heat from the engine 15, the waste heat from the turbocharger EGR, and the waste heat from the dual-stage compression heat pump to heat the passenger compartment. The flow path of the medium in the heat pump heat absorption main circuit 001 is as follows: First compressor 1 → Three-way valve G16 (valve port G1 and valve port G3 are connected) → Three-way valve H17 (valve port H1 and valve port H3 are connected) → Heat pump heat exchanger 9 → Three-way valve Q18 → Second compressor 2 → Three-way valve P19 → Water-cooled condenser 10 → Shut-off valve C20 → Three-way valve G21 → Expansion valve B22 → Battery heat exchanger 4 → Three-way valve B23 (valve port B1 and valve port B3 are connected) → Three-way valve E24 → Expansion valve A25 → Outdoor heat exchanger 3 → Three-way valve F → Shut-off valve A27 → Three-way valve J28 → Gas-liquid separator 29 → First compressor 1. The flow path of the medium in the crew compartment heating circuit 007 and the engine heat exchange branch 009 is as follows: engine water pump 46 → engine 15 + exhaust gas recirculation pipeline + turbocharger → thermostat 47 → three-way valve O43 → three-way valve N44 → three-way valve E45 (valve port E2 and valve port E3 are connected) → heater water pump 40 → heater core 14 → three-way valve A37 (valve port A1 and valve port A3 are connected) → valve port K4 → valve port K2 → heat pump heat exchanger 9 → three-way valve M41 → three-way valve D42 (valve port D1 and valve port D3 are connected) → engine water pump 46.

[0086] 19. The heat pump, engine 15 heat, turbocharger EGR waste heat, and dual-stage compression heat pump waste heat are used to heat the passenger compartment and power battery 5. The flow path of the medium in the heat pump heat absorption main circuit 001 is as follows: First compressor 1 → three-way valve G16 (valve port G1 and valve port G3 are connected) → three-way valve H17 (valve port H1 and valve port H3 are connected) → heat pump heat exchanger 9 → three-way valve Q18 → second compressor 2 → three-way valve P19 → water-cooled condenser 10 → shut-off valve C20 → three-way valve G21 → expansion valve B22 → battery heat exchanger 4 → three-way valve B23 (valve port B1 and valve port B3 are connected) → three-way valve E24 → expansion valve A25 → outdoor heat exchanger 3 → three-way valve F → shut-off valve A27 → three-way valve J28 → gas-liquid separator 29 → first compressor 1. The flow path of the medium in the crew compartment heating circuit 007, battery circuit 002 and engine heat exchange branch 009 is as follows: engine water pump 46 → engine 15 + exhaust gas recirculation pipeline + turbocharger → thermostat 47 → three-way valve O43 → three-way valve N44 → three-way valve E45 (valve port E2 and valve port E3 are connected) → heater water pump 40 → heater core 14 → three-way valve A37 (valve port A1 and valve port A3 are connected) → valve port K4 → valve port K1 → battery heat exchanger 4 → three-way valve B39 → battery water pump 30 → power battery 5 → one-way valve A31 → three-way valve D38 → valve port K3 → valve port K2 → heat pump heat exchanger 9 → three-way valve M41 → three-way valve D42 (valve port D1 and valve port D3 are connected) → engine water pump 46.

[0087] Based on the same inventive concept, this application also provides a new energy vehicle, including the above-described thermal management architecture.

[0088] Compared with the prior art, the new energy vehicle provided in this embodiment effectively reduces the energy consumption for heating the power battery 5 in winter by adopting the above-mentioned thermal management architecture, improves the adverse effects of heating on the winter driving range, and enhances the product competitiveness.

[0089] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thermal management architecture, characterized by, The heat management architecture comprises: a heat pump heat absorption main circuit (001), a battery circuit (002), a heat pump waste heat branch circuit (005), an auxiliary heat exchange branch circuit (006), a first on-off control module (7) and a second on-off control module (8); the heat pump heat absorption main circuit (001) comprises a first compressor (1), a second compressor (2) and an outdoor heat exchanger (3) connected in series, and the outdoor heat exchanger (3) is used for heat exchange with the external environment; the battery circuit (002) comprises a battery heat exchanger (4) and a power battery (5) connected in series, and the battery heat exchanger (4) is in heat exchange connection with the heat pump heat absorption main circuit (001); the heat pump waste heat branch circuit (005) has a heat pump heat exchanger (9), the heat pump waste heat branch circuit (005) is connected with the heat pump heat absorption main circuit (001) through the second on-off control module (8), and the second on-off control module (8) can make the heat pump waste heat branch circuit (005) and the heat pump heat absorption main circuit (001) communicate to form a circulating loop; the heat pump heat exchanger (9) is in heat exchange connection with the auxiliary heat exchange branch circuit (006), the battery circuit (002) is connected with the auxiliary heat exchange branch circuit (006) through the first on-off control module (7), and the first on-off control module (7) can make the battery circuit (002) and the auxiliary heat exchange branch circuit (006) communicate to form a circulating loop.

2. The thermal management architecture of claim 1, wherein, The heat management architecture further comprises a motor waste heat branch circuit (003), the battery circuit (002) is provided with a power battery (5), and the motor waste heat branch circuit (003) is connected with the power battery (5) in parallel to heat the power battery (5) using motor waste heat.

3. The thermal management architecture of claim 1, wherein, The heat management architecture further comprises a first bypass branch circuit (004) and a third on-off control module (6), one end of the first bypass branch circuit (004) is connected between the first compressor (1) and the second compressor (2), and the third on-off control module (6) is arranged at the connection position, and the other end of the first bypass branch circuit (004) is connected to the outlet side of the second compressor (2), and the third on-off control module (6) can make the first compressor (1) and the outdoor heat exchanger (3) form a series loop.

4. The thermal management architecture of claim 1, wherein, The second on-off control module (8) is arranged between the first compressor (1) and the second compressor (2).

5. The thermal management architecture of claim 1, wherein, The heat pump heat absorption main circuit (001) further comprises a water-cooled condenser (10) arranged between the second compressor (2) and the outdoor heat exchanger (3); The heat management architecture further comprises a passenger cabin heating circuit (007), and the passenger cabin heating circuit (007) is in heat exchange connection with the heat pump heat absorption main circuit (001) through the water-cooled condenser (10).

6. The thermal management architecture of claim 5, wherein, The passenger cabin heating circuit (007) is further connected with a second bypass branch (008) and a sixth on-off control module (11), the second bypass branch (008) is connected to the passenger cabin heating circuit (007) and is connected in parallel with the water-cooled condenser (10), the sixth on-off control module (11) is arranged on the second bypass branch (008), and the sixth on-off control module (11) can selectively conduct the water-cooled condenser (10) and the second bypass branch (008).

7. The thermal management architecture of claim 5, wherein, The fourth on-off control module (12) is arranged between the passenger cabin heating circuit (007) and the auxiliary heat exchange branch (006), and the fourth on-off control module (12) can make the passenger cabin heating circuit (007) and the auxiliary heat exchange branch (006) communicate to form a circulating loop.

8. The thermal management architecture of claim 7, wherein, The thermal management architecture further comprises a motor waste heat branch (003), the battery circuit (002) is provided with a power battery (5), the motor waste heat branch (003) is connected in parallel with the power battery (5), and the first on-off control module (7) is arranged in the battery circuit (002) at a position on the outlet side of the motor waste heat branch (003). The first on-off control module (7) cooperates with the fourth on-off control module (12) to make the motor waste heat branch (003), the auxiliary heat exchange branch (006) and the passenger cabin heating circuit (007) sequentially communicate to form a circulating loop.

9. The thermal management architecture of claim 7, wherein, The thermal management architecture further comprises an engine heat exchange branch (009) and a fifth on-off control module (13), the engine heat exchange branch (009) is connected to the passenger cabin heating circuit (007) through the fifth on-off control module (13). The fifth on-off control module (13) can make a heater core (14) in the passenger cabin heating circuit (007) and an engine (15) in the engine heat exchange branch (009) form a series loop.

10. The thermal management architecture of claim 9, wherein, The engine (15) is further connected with a supercharger heat exchange branch (010) and an exhaust gas recirculation heat exchange branch (011), the supercharger heat exchange branch (010) and the exhaust gas recirculation heat exchange branch (011) are connected in parallel, and downstream ends of the supercharger heat exchange branch (010) and the exhaust gas recirculation heat exchange branch (011) are connected to the inlet side of the engine (15).

11. A new energy vehicle, characterized in that, The thermal management architecture comprises the thermal management architecture according to any one of claims 1-10.

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