Thermal management system, thermal management control method and vehicle

Abstract

The invention discloses a thermal management system, a thermal management control method and a vehicle. The heat management system comprises a waste heat circulation loop and an absorption type air conditioner heat circulation loop. The absorption type air conditioner heat circulation loop is coupled with the waste heat circulation loop, and the waste heat circulation loop is used for supplying a heat source to the absorption type air conditioner heat circulation loop. While heat management of the system is achieved, the energy efficiency is improved, and vibration and noise are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of refrigeration technology, and in particular to a thermal management system, a thermal management control method and a vehicle. BACKGROUND

[0002] The existing thermal management is mainly driven by a compressor to drive a refrigerant cycle. However, the compressor refrigeration cycle is in the form of consuming mechanical work, and its energy efficiency is low, and the vibration and noise generated by the compressor are relatively large. SUMMARY

[0003] The present application provides a thermal management system, a thermal management control method and a vehicle to achieve thermal management of the system while improving the energy efficiency, reducing vibration and noise.

[0004] According to an aspect of the present application, a thermal management system is provided, comprising:

[0005] a waste heat circulation loop;

[0006] an absorption air conditioner thermal circulation loop; coupled with the waste heat circulation loop, and the waste heat circulation loop is used to supply heat source for the absorption air conditioner thermal circulation loop.

[0007] Optionally, the absorption air conditioner thermal circulation loop comprises:

[0008] a working fluid circulation module; coupled with the waste heat circulation loop, and absorbing the heat supplied by the waste heat circulation loop.

[0009] Optionally, the working fluid circulation module comprises:

[0010] a generator;

[0011] a first waste heat heat exchanger; disposed in the generator and coupled with the waste heat circulation loop; the circulating liquid in the waste heat circulation loop heats the solution in the generator through the first waste heat heat exchanger.

[0012] Optionally, the working fluid circulation module further comprises:

[0013] an auxiliary waste heat heating unit; disposed in the generator and powered and heated by a power supply circuit.

[0014] Optionally, the working fluid circulation module further comprises an absorber, a throttle valve and a solution pump;

[0015] wherein the throttle valve is connected between the solution outlet of the generator and the solution inlet of the absorber, and the solution pump is connected between the solution outlet of the absorber and the solution inlet of the absorber.

[0016] The steam outlet of the generator outputs the evaporated circulating working medium, and the backflow inlet of the absorber recycles the circulating working medium; the circulating working medium circulates in the absorption type air conditioning heat cycle loop.

[0017] Optionally, the absorption type air conditioning heat cycle loop further comprises an air conditioner box module, a water-cooled condenser and an outdoor heat exchanger.

[0018] The air conditioner box module exchanges heat with cabin air through the circulating working medium evaporated by the working medium circulation module.

[0019] The water-cooled condenser is coupled with the waste heat circulation loop to exchange heat between the circulating liquid of the waste heat circulation loop and the circulating working medium of the absorption type air conditioning heat cycle loop.

[0020] The outdoor heat exchanger is coupled with the waste heat circulation loop to exchange heat between the circulating liquid of the waste heat circulation loop and the circulating working medium of the absorption type air conditioning heat cycle loop.

[0021] Optionally, the absorption type air conditioning heat cycle loop further comprises an intermediate heat exchanger and a first electronic four-way valve.

[0022] The first pipe port of the intermediate heat exchanger is connected to the first pipe port of the first electronic four-way valve; the second pipe port of the intermediate heat exchanger is connected to the backflow inlet of the working medium circulation module; the third pipe port of the intermediate heat exchanger is connected to the outdoor heat exchanger, and the fourth pipe port of the intermediate heat exchanger is connected to the air conditioner box module.

[0023] The second pipe port of the first electronic four-way valve is connected to the air conditioner box module, the third pipe port of the first electronic four-way valve is connected to the steam outlet of the working medium circulation module, and the fourth pipe port of the first electronic four-way valve is connected to the water-cooled condenser.

[0024] Optionally, the air conditioner box module comprises a cabin main heat exchanger, a cabin auxiliary heat exchanger, a first full-pass throttling valve, a second full-pass throttling valve and an electromagnetic control valve.

[0025] The cabin auxiliary heat exchanger, the first full-pass throttling valve, the cabin main heat exchanger and the second full-pass throttling valve are sequentially connected between the second pipe port of the first electronic four-way valve and the fourth pipe port of the intermediate heat exchanger.

[0026] The electromagnetic control valve is connected between the cabin main heat exchanger and the second pipe port of the intermediate heat exchanger.

[0027] Optionally, the waste heat circulation loop comprises:

[0028] Waste heat supply module; used to heat circulating liquid, which is coupled to the absorption air conditioning heat circulation loop through the circulating liquid;

[0029] Low-temperature radiator; the low-temperature radiator is coupled to the absorption air conditioning heat circulation loop.

[0030] Optionally, the waste heat circulation loop further includes:

[0031] A first electronic three-way valve is connected between the waste heat supply module and the low-temperature radiator; the first port and the second port of the first electronic three-way valve are respectively connected to the two ends of the low-temperature radiator through pipes, and the third port of the first electronic three-way valve is connected to the inlet port of the waste heat supply module.

[0032] And / or, a second electronic three-way valve, wherein the first port, the second port, and the third port of the second electronic three-way valve are respectively connected to different positions of the waste heat circulation loop via pipes; the second electronic three-way valve is used to switch whether the waste heat circulation loop exchanges heat with the absorption air conditioning heat circulation loop.

[0033] Optionally, the waste heat supply module includes at least one of a range extender, an engine, a motor, and a motor controller.

[0034] Optionally, the thermal management system also includes:

[0035] A battery thermal cycle circuit; coupled to the waste heat cycle circuit; and / or coupled to the absorption air conditioning thermal cycle circuit.

[0036] Optionally, the battery thermal cycling circuit includes:

[0037] Battery heat exchanger; the absorption air conditioning heat circulation loop and the battery heat circulation loop exchange heat through the battery heat exchanger.

[0038] Optionally, the battery thermal cycling circuit further includes:

[0039] The second electronic four-way valve is connected at the intersection of the waste heat circulation loop and the battery thermal circulation loop; the first port of the second electronic four-way valve is connected to the battery, the second and third ports of the second electronic four-way valve are connected to the waste heat circulation loop, and the fourth port of the second electronic four-way valve is connected to the battery heat exchanger.

[0040] According to another aspect of the present invention, a thermal management control method is also provided, applied to the thermal management system described in the first aspect; the thermal management control method includes:

[0041] By controlling the flow path of the circulating liquid in the waste heat circulation loop, and controlling the flow rate, direction, and flow path of the circulating working fluid in the absorption air conditioning heat circulation loop, the passenger compartment can be cooled, dehumidified, or heated.

[0042] Optionally, in response to a separate cooling mode for the crew cabin;

[0043] The circulating liquid in the waste heat circulation loop is controlled to provide a heat source to the working fluid circulation module in the absorption air conditioning heat circulation loop through the waste heat supply module;

[0044] The evaporating working fluid in the working fluid circulation module is controlled to flow to the air conditioning unit module for circulation after heat exchange, thereby cooling the passenger compartment;

[0045] Alternatively, in response to the cabin dehumidification mode;

[0046] The circulating liquid in the waste heat circulation loop is controlled to provide a heat source to the working fluid circulation module in the absorption air conditioning heat circulation loop through the waste heat supply module;

[0047] The circulating working fluid in the working fluid circulation module is controlled to evaporate and then exchange heat after being throttled by the air conditioning unit module, and then circulated to dehumidify the passenger compartment;

[0048] Alternatively, in response to a separate heating mode for the passenger cabin;

[0049] The circulating liquid in the waste heat circulation loop is controlled to provide a heat source to the working fluid circulation module of the absorption air conditioning heat circulation loop through the waste heat supply module.

[0050] The working fluid evaporated in the working fluid circulation module is circulated through the air conditioning unit module to heat the passenger compartment.

[0051] Optionally, the thermal management control method further includes:

[0052] The battery can be cooled or heated by controlling the flow rate and circulation path of the circulating liquid in the battery thermal circulation loop.

[0053] Optionally, in response to a combined cooling mode for the crew compartment and battery;

[0054] The circulating liquids in the waste heat circulation loop and the battery thermal circulation loop are controlled to circulate separately; wherein, the circulating liquids in the waste heat circulation loop are controlled to provide a heat source to the working fluid circulation module in the absorption air conditioning thermal circulation loop through the waste heat supply module;

[0055] The working fluid that evaporates in the working fluid circulation module is controlled to flow to the air conditioning unit module for circulation after heat exchange, thereby cooling the passenger compartment; another part exchanges heat with the circulating liquid in the battery thermal circulation loop to cool the battery.

[0056] Alternatively, in response to a combined heating mode for the crew cabin and battery;

[0057] Control the mixing and circulation of circulating liquids in the waste heat circulation loop and the battery thermal circulation loop;

[0058] The circulating liquid in the waste heat circulation loop is controlled to provide a heat source to the absorption air conditioning heat circulation loop through the waste heat supply module, while simultaneously heating the battery.

[0059] The working fluid evaporated in the working fluid circulation module is circulated through the air conditioning unit module to heat the passenger compartment;

[0060] Alternatively, in response to a separate battery cooling mode;

[0061] The circulating liquids in the waste heat circulation loop and the battery thermal circulation loop are controlled to circulate separately; wherein, the circulating liquids in the waste heat circulation loop are controlled to provide a heat source to the working fluid circulation module in the absorption air conditioning thermal circulation loop through the waste heat supply module;

[0062] The evaporating working fluid in the working fluid circulation module is controlled to flow to the air conditioning unit module for cooling after heat exchange, and exchanges heat with the circulating liquid in the battery thermal circulation loop to cool the battery;

[0063] Alternatively, in response to a separate battery heating mode;

[0064] The circulating liquid in the waste heat circulation loop and the battery thermal circulation loop is mixed and circulated. The circulating liquid in the waste heat circulation loop is heated by the waste heat supply module to heat the battery.

[0065] According to another aspect of the invention, a vehicle is provided that includes a thermal management system as described in the first aspect.

[0066] The technical solution of this invention applies absorption thermal management to vehicles and couples the absorption air conditioning thermal cycle loop with the waste heat cycle loop, utilizing the absorption cycle loop to provide a heat source, thereby saving energy consumption in the thermal management process. Therefore, this invention can fully utilize waste heat to enhance energy efficiency. The efficiency is improved by reducing the direct emission of waste heat into the atmosphere, thereby reducing heat damage and improving the circulation efficiency of the thermal management system. On the other hand, the embodiments of the present invention do not require the use of a compressor, thereby reducing the vibration and noise generated during compressor operation.

[0067] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0068] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0069] Figure 1 This is a schematic diagram of the structure of a thermal management system provided in an embodiment of the present invention;

[0070] Figure 2 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention;

[0071] Figure 3 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention;

[0072] Figure 4 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention;

[0073] Figure 5 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention;

[0074] Figure 6 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention;

[0075] Figure 7 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention;

[0076] Figure 8 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention;

[0077] Figure 9 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention;

[0078] Figure 10 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention;

[0079] Figure 11 This is a schematic diagram illustrating the working principle of a thermal management system in which the passenger compartment and battery are cooled together, as provided in an embodiment of the present invention.

[0080] Figure 12 This is a schematic diagram illustrating the working principle of the passenger compartment dehumidification mode of a thermal management system provided in this embodiment of the invention.

[0081] Figure 13 This is a schematic diagram illustrating the working principle of a thermal management system in which the passenger compartment and battery are heated together, as provided in an embodiment of the present invention. Detailed Implementation

[0082] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0083] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0084] This invention provides a thermal management system that can be applied to hybrid electric vehicles or pure electric vehicles. Figure 1 This is a schematic diagram of a thermal management system provided in an embodiment of the present invention. (Reference) Figure 1 The thermal management system includes:

[0085] Waste heat circulation loop L1;

[0086] Absorption air conditioning heat circulation loop L2; coupled with waste heat circulation loop L1, and waste heat circulation loop L1 is used to supply heat source to absorption air conditioning heat circulation loop L2.

[0087] Figure 1 Different colored lines represent different circulation loops. Among them, the waste heat circulation loop L1 contains a circulating liquid whose temperature rises due to the absorption of waste heat from the system. This circulating liquid serves as the heat source in the absorption air conditioning heat circulation loop L2, and can heat the medium flowing in the absorption air conditioning heat circulation loop L2.

[0088] For example, the circulating liquid can be water or other liquids; the medium can be a water-ammonia solution, or other salt solutions such as lithium bromide solution. The thermal management system operates as follows: the heated circulating liquid flows through pipes into the absorption air conditioning thermal circulation loop L2, serving as its heat source to heat the medium, causing the low-concentration circulating working fluid to evaporate into high-concentration steam. This steam form of the circulating working fluid undergoes heat exchange or throttling in the absorption air conditioning thermal circulation loop L2, used for refrigeration, dehumidification, or heating of the passenger compartment.

[0089] Therefore, this embodiment of the invention applies absorption thermal management to vehicles and couples the absorption air conditioning thermal cycle loop L2 with the waste heat cycle loop L1, utilizing the absorption cycle loop L1 to provide a heat source, thereby saving energy consumption in the thermal management process. Thus, this embodiment of the invention can fully utilize waste heat to enhance energy efficiency. The efficiency is improved by reducing the direct emission of waste heat into the atmosphere, thereby reducing heat damage and improving the circulation efficiency of the thermal management system. On the other hand, the embodiments of the present invention do not require the use of a compressor, thereby reducing the vibration and noise generated during compressor operation.

[0090] See also Figure 1 Based on the above embodiments, optionally, the absorption air conditioning heat circulation loop L2 includes a working fluid circulation module 210. The working fluid circulation module 210 is coupled to the waste heat circulation loop L1 and absorbs the heat supplied by the waste heat circulation loop L1. The working fluid circulation module 210 is the main component for absorbing heat in the waste heat circulation loop L1. Specifically, the medium used to absorb heat from the waste heat circulation loop L1 is stored in the working fluid circulation module 210. This medium can also be called a solution. After heating, the low-concentration circulating working fluid evaporates into a high-concentration vapor. This vapor form of the circulating working fluid undergoes heat exchange or throttling in the absorption air conditioning heat circulation loop L2 for purposes such as cooling, dehumidifying, or heating the passenger cabin.

[0091] See also Figure 1Based on the above embodiments, optionally, the waste heat circulation loop L1 includes a waste heat supply module 110. The waste heat supply module 110 is used to heat the circulating liquid and is coupled to the absorption-type air conditioning heat circulation loop L2 through the circulating liquid. The waste heat supply module 110 is the main component in the waste heat circulation loop L1 that generates and utilizes waste heat. Exemplarily, the waste heat supply module 110 includes at least one of a range extender, an engine, a motor, and a motor controller. For hybrid electric vehicles, the waste heat supply module 110 can be a range extender; for pure electric vehicles, the waste heat supply module 110 can be a motor or a motor controller; for gasoline vehicles, the waste heat supply module 110 can be an engine. Range extenders, engines, motors, and motor controllers are the main components for heat dissipation in vehicles, and the existing technology has a low utilization rate of waste heat. This embodiment of the invention utilizes these components, which is beneficial for energy recycling and improves energy efficiency.

[0092] Optionally, the pipes of the waste heat circulation loop L1 can be wrapped around the waste heat supply module 110 to absorb the heat generated by the waste heat supply module 110.

[0093] Based on the above embodiments, there are various possible configurations for the waste heat circulation loop L1 and the absorption air conditioning heat circulation loop L2, which will be described in detail below, but are not intended to limit the present invention.

[0094] Figure 2 This is a schematic diagram of a thermal management system provided in an embodiment of the present invention. (Reference) Figure 2 In one embodiment, the absorption air conditioning heat cycle loop L2 may optionally include a water-cooled condenser 12, an air conditioning unit module 220, and an outdoor heat exchanger 230.

[0095] The air conditioning unit module 220 exchanges heat with the passenger compartment air through the circulating working fluid evaporated by the working fluid circulation module 210; the water-cooled condenser 12 is coupled to the waste heat circulation loop L1 so that the circulating liquid of the waste heat circulation loop L1 and the circulating working fluid of the absorption air conditioning heat circulation loop L2 exchange heat; the outdoor heat exchanger 230 is coupled to the waste heat circulation loop L1 so that the circulating liquid of the waste heat circulation loop L1 and the circulating working fluid of the absorption air conditioning heat circulation loop L2 exchange heat.

[0096] In this embodiment, the circulating liquid heated by the waste heat supply module 110 undergoes a first heat exchange with the absorption air conditioning heat circulation loop L2 as it passes through the working fluid circulation module 210. The waste heat circulation loop L1 and the absorption air conditioning heat circulation loop L2 then undergo a second heat exchange in the water-cooled condenser 12. Finally, the waste heat circulation loop L1 and the absorption air conditioning heat circulation loop L2 undergo a third heat exchange through the outdoor heat exchanger 230. Therefore, this embodiment of the invention facilitates the full utilization of system waste heat, further improving waste heat utilization efficiency.

[0097] See also Figure 2 In one embodiment, the waste heat circulation loop L1 optionally includes a low-temperature radiator 120. The low-temperature radiator 120 is coupled to the absorption air conditioning heat circulation loop L2. Exemplarily, the low-temperature radiator 120 cooperates with the outdoor heat exchanger 230 in the absorption air conditioning heat circulation loop L2 for heat exchange. This arrangement helps to further improve heat exchange efficiency.

[0098] Figure 3 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention. See also... Figure 3 In another embodiment, the waste heat circulation loop L1 may optionally include:

[0099] The first electronic three-way valve 130 is connected between the waste heat supply module 110 and the low-temperature radiator 120. The first port and the second port of the first electronic three-way valve 130 are respectively connected to the two ends of the low-temperature radiator 120 through pipes, and the third port of the first electronic three-way valve 130 is connected to the inlet port of the waste heat supply module 110.

[0100] By controlling the internal connection relationship of the three ports of the first electronic three-way valve 130, the flow path of the circulating liquid in the waste heat circulation loop L1 can be controlled. For example, when the third port is connected to the first port, the second port is idle. At this time, the circulating liquid in the waste heat circulation loop L1 flows through the low-temperature radiator 120, and the circulating liquid in the waste heat circulation loop L1 and the circulating working fluid in the absorption air conditioning heat circulation loop L2 can exchange heat. When the third port is connected to the second port, the first port is idle. At this time, the circulating liquid in the waste heat circulation loop L1 bypasses the low-temperature radiator 120, so that the low-temperature radiator is bypassed, and the circulating liquid in the waste heat circulation loop L1 and the circulating working fluid in the absorption air conditioning heat circulation loop L2 do not exchange heat through the low-temperature radiator 120.

[0101] Furthermore, the connection methods of the ports of the first electronic three-way valve 130 are different in different operating modes of the thermal management system. For example, in the crew cabin cooling mode or the crew cabin dehumidification mode, the third port of the first electronic three-way valve 130 is connected to the first port; in the crew cabin heating mode, the third port of the first electronic three-way valve 130 is connected to the second port.

[0102] This invention, by setting a first electronic three-way valve 130 in the waste heat circulation loop L1, can control the flow path of the circulating liquid in the waste heat circulation loop L1, thus enriching the implementation methods of the waste heat circulation loop L1 and the functions of the thermal management system.

[0103] See also Figure 3 In one embodiment, optionally, the waste heat circulation loop L1 further includes:

[0104] The second electronic three-way valve 140 has its first, second, and third ports connected to different locations in the waste heat circulation loop L1 via pipes. The second electronic three-way valve 140 is used to switch whether the waste heat circulation loop L1 exchanges heat with the absorption air conditioning heat circulation loop L2. For example, the first and second ports of the second electronic three-way valve 140 are connected to both ends of the water-cooled condenser 12 via pipes, and the third port of the second electronic three-way valve 140 is connected to the main pipe of the heat circulation loop L1.

[0105] By controlling the internal connection relationship of the three ports of the second electronic three-way valve 140, the flow path of the circulating liquid in the waste heat circulation loop L1 can be controlled. For example, when the third port is connected to the second port, the third port is idle. At this time, the circulating liquid in the waste heat circulation loop L1 flows through the water-cooled condenser 12 for heat exchange. When the third port is connected to the first port, the second port is idle. At this time, the circulating liquid in the waste heat circulation loop L1 bypasses the water-cooled condenser 12, so that the water-cooled condenser 12 is bypassed, and the circulating liquid in the waste heat circulation loop L1 and the circulating working fluid in the absorption air conditioning heat circulation loop L2 do not pass through the water-cooled condenser 12 for heat exchange.

[0106] Furthermore, the connection methods of the ports of the second electronic three-way valve 140 are different in different operating modes of the thermal management system. For example, in the crew cabin cooling mode or the crew cabin dehumidification mode, the third port of the second electronic three-way valve 140 is connected to the second port; in the crew cabin heating mode, the third port of the second electronic three-way valve 140 is connected to the first port.

[0107] This invention, by setting a second electronic three-way valve 140 in the waste heat circulation loop L1, can control the flow path of the circulating liquid in the waste heat circulation loop L1, thus enriching the implementation methods of the waste heat circulation loop L1 and the functions of the thermal management system.

[0108] See also Figure 3 In one embodiment, optionally, the low-temperature radiator 120 is located between the waste heat supply module 110 and the water-cooled condenser 12; the outdoor heat exchanger 230 is located between the working fluid circulation module 210 and the water-cooled condenser 12. This arrangement allows the working fluid in the absorption air conditioning heat circulation loop L2 to pass sequentially through the water-cooled condenser 12 and the outdoor heat exchanger 230 when cooling is required; simultaneously, the circulating liquid in the waste heat circulation loop L1 can pass sequentially through the water-cooled condenser 12 and the low-temperature radiator 120. For example, in the crew cabin cooling mode, when the steam generated by the working fluid circulation module 210 passes through the water-cooled condenser 12, the circulating liquid in the waste heat circulation loop L1 is used as the cooling medium to condense the circulating working fluid into a liquid state so that it can absorb more heat in the subsequent evaporation process, thereby achieving a cooling effect. Furthermore, the circulating working fluid condensed into a liquid state exchanges heat with the external environment through the outdoor heat exchanger 230, and the circulating working fluid is further cooled down. At the same time, the low-temperature radiator 120 is combined with the outdoor heat exchanger 230 to dissipate the high temperature of the outdoor heat exchanger 230 to the surrounding environment, which is conducive to further cooling of the circulating working fluid.

[0109] Figure 4 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention. (Reference) Figure 4 In one embodiment, the working fluid circulation module 210 optionally includes a generator 211 and a first waste heat exchanger 217. The first waste heat exchanger 217 is disposed within the generator 211 and coupled to the waste heat circulation loop L1; the circulating liquid in the waste heat circulation loop L1 heats the solution within the generator 211 through the first waste heat exchanger 217. The generator 211 includes an evaporator and a solution, and the first waste heat exchanger 217 can be immersed in the solution to heat it. This configuration allows the working fluid circulation module to fully utilize the heat from the waste heat circulation loop L1, and it has a simple structure and is easy to implement.

[0110] Continue to refer to Figure 4In one embodiment, the working fluid circulation module 210 may optionally include an absorber 212, a throttle valve 213, and a solution pump 214. The throttle valve 213 is connected between the solution outlet of the generator 211 and the solution inlet of the absorber 212, and the solution pump 214 is connected between the solution outlet of the absorber 212 and the solution inlet of the absorber. The generator 211 outputs the evaporated circulating working fluid at its steam outlet, and the absorber 212 recovers the circulating working fluid at its return inlet. The circulating working fluid circulates in the absorption-type air conditioning heat cycle loop L2.

[0111] For example, the steam outlet of generator 211 is connected to the main pipe of absorption air conditioning heat circulation loop L2. Specifically, the main pipe of absorption air conditioning heat circulation loop L2 is defined as the pipe through which the circulating working fluid circulates, regardless of the operating mode. The working principle of the working fluid circulation module 210 is as follows: heat exchange is performed between the working fluid and the solution in the evaporator through the first waste heat exchanger 217 in the evaporator, heating the solution. During the solution heating process, the low-concentration circulating working fluid evaporates into high-concentration steam, thereby driving the circulation of the circulating working fluid. The main function of absorber 212 is to reabsorb the circulating working fluid generated in generator 211 back into the solution, thereby realizing the recycling of the circulating working fluid. Absorber 212 includes an absorption tank, the interior of which is usually a low-temperature environment to ensure that the circulating working fluid steam can be effectively absorbed. Specifically, the concentrated solution after absorbing heat to evaporate the circulating working fluid has a relatively high pressure after being heated. It flows into absorber 212 after being throttled and cooled by throttling valve 213, improving the efficiency of absorber 212 in absorbing the recirculated circulating working fluid. When the circulating working fluid vapor enters the absorber 212, it reacts with the absorbent (such as lithium bromide) in the concentrated solution to form a new low-concentration solution, which is then returned to the generator 211 by the solution pump 214 to prepare for the next refrigeration cycle.

[0112] See also Figure 4In one embodiment, optionally, the absorption air conditioning heat circulation loop L2 further includes: an intermediate heat exchanger 240; the first port of the intermediate heat exchanger 240 is connected to the main circuit coupling of the absorption air conditioning heat circulation loop L2, the second port of the intermediate heat exchanger 240 is connected to the return inlet of the absorber 212, the third port of the intermediate heat exchanger 240 is connected to the outdoor heat exchanger 230, and the fourth port of the intermediate heat exchanger 240 is connected to the air conditioning unit module 220; the intermediate heat exchanger 240 is used for internal heat exchange of the circulating working fluid of the absorption air conditioning heat circulation loop L2. The intermediate heat exchanger 240 (IHX) is used to realize heat exchange between hot and cold fluids. For example, in the passenger compartment cooling mode, the high-temperature circulating working fluid from the main pipe of the absorption air conditioning heat circulation loop L2 and the low-temperature working fluid from the outdoor heat exchanger 230 exchange heat, further reducing the temperature of the circulating working fluid flowing to the air conditioning unit module 220, thereby facilitating further utilization of system heat.

[0113] Continue to refer to Figure 4 In one embodiment, optionally, the absorption air conditioning heat cycle loop L2 further includes: a first electronic four-way valve 250, the first port of the first electronic four-way valve 250 being connected to the intermediate heat exchanger 240, the second port of the first electronic four-way valve 250 being connected to the air conditioning box module 220, the third port of the first electronic four-way valve 250 being connected to the steam outlet of the working fluid circulation module 210, and the fourth port of the first electronic four-way valve 250 being connected to the water-cooled condenser 12.

[0114] By controlling the internal connection relationship of the four ports of the first electronic four-way valve 250, the flow path of the circulating working fluid in the absorption air conditioning heat circulation loop L2 can be controlled. For example, when the first port and the second port are connected, and the third port and the fourth port are connected, the circulating working fluid vapor generated by the working fluid circulation module 210 flows through the third port and the fourth port, sequentially through the water-cooled condenser 12 and the outdoor heat exchanger 230, and the circulating working fluid flowing out of the air conditioning unit module 220 flows back to the working fluid circulation module 210 through the second port and the first port; when the first port and the fourth port are connected, and the third port and the second port are connected, the circulating working fluid vapor generated by the working fluid circulation module 210 flows to the air conditioning unit module 220 through the third port and the second port, and the circulating working fluid flowing out of the outdoor heat exchanger 230 and the water-cooled condenser 12 flows back to the working fluid circulation module 210 through the fourth port and the first port.

[0115] Furthermore, the connection methods of the ports of the first electronic four-way valve 250 are different in different operating modes of the thermal management system. For example, in the passenger compartment cooling mode, the first and second ports of the first electronic four-way valve 250 are connected, as are the third and fourth ports; in the passenger compartment dehumidification mode or passenger compartment heating mode, the first and fourth ports of the first electronic four-way valve 250 are connected, as are the third and second ports.

[0116] This invention, by setting a first electronic four-way valve 250 in the absorption air conditioning thermal circulation loop L2, can control the flow path of the circulating working fluid in the absorption air conditioning thermal circulation loop L2, thus enriching the implementation methods of the absorption air conditioning thermal circulation loop L2 and the functions of the thermal management system.

[0117] Figure 5 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention. (Reference) Figure 5 In one embodiment, the working fluid circulation module 210 may optionally include an auxiliary waste heat heating unit 216. The auxiliary waste heat heating unit 216 is disposed within the generator 211 and is powered by a power supply circuit. Optionally, the auxiliary waste heat heating unit 216 is an electric heating device such as a positive temperature coefficient thermistor (PTC). The auxiliary waste heat heating unit 216 assists the waste heat supply module 110 in heating the circulating working fluid of the absorption air conditioning thermal circulation loop L2. For example, when the waste heat supply module 110 is insufficient, the auxiliary waste heat heating unit 216 can provide auxiliary heating to the working fluid circulation module 210 to meet the heat source requirements of the thermal management system. Taking a range extender as an example, insufficient waste heat in the waste heat supply module 110 may be caused by the range extender not starting or by a low ambient temperature.

[0118] Figure 6 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention. (Reference) Figure 6 In one embodiment, optionally, the air conditioning unit module 220 includes: a main heat exchanger 221 for the passenger compartment, an auxiliary heat exchanger 222 for the passenger compartment, a first full-way throttle valve ERV1, a second full-way throttle valve ERV4, and an electromagnetic control valve SOV; the auxiliary heat exchanger 222 for the passenger compartment, the first full-way throttle valve ERV1, the main heat exchanger 221 for the passenger compartment, and the second full-way throttle valve ERV4 are sequentially connected between the second port of the first electronic four-way valve 250 and the fourth port of the intermediate heat exchanger 240; the electromagnetic control valve SOV is connected between the main heat exchanger 221 for the passenger compartment and the second port of the intermediate heat exchanger 240.

[0119] The main heat exchanger 221 of the passenger compartment enables large-scale heat exchange in either cooling or heating modes. In cooling mode, it functions as an evaporator, absorbing heat from the passenger compartment air through the evaporation of a liquid circulating working fluid, thus lowering the compartment temperature. In heating mode, it may function as a condenser, releasing heat through the condensation of a gaseous circulating working fluid, thereby heating the passenger compartment air. The auxiliary heat exchanger 222 works in conjunction with the main heat exchanger 221 to achieve more complex heat exchange or control functions. For example, in dehumidification mode, where heating is required for dehumidification, the auxiliary heat exchanger 222 can raise the passenger compartment temperature through heating, while the main heat exchanger 221 handles the dehumidification.

[0120] Based on the above embodiments, the thermal management system provided by the present invention can also realize the heating and cooling of the battery. The following is a detailed description, but it is not intended to limit the present invention.

[0121] Figure 7 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention. (Reference) Figure 7 In one embodiment, the thermal management system may optionally further include:

[0122] Battery thermal cycle circuit L3 is coupled to waste heat cycle circuit L1.

[0123] For example, the operating principle of the thermal management system for heating the battery 310 is as follows: the circulating liquid flowing in the waste heat circulation loop L1 is heated by the waste heat supply module 110. The heated circulating liquid flows into the working fluid circulation module 210 through the pipe and then into the battery thermal circulation loop L3, so that the battery 310 can be heated by the circulating liquid with higher temperature.

[0124] Therefore, the circulating liquid generated by the waste heat circulation loop L1 in this embodiment of the invention can heat or cool the battery without the need for additional heating equipment, which helps to simplify the system structure, reduce costs, and further realize the full utilization of heat.

[0125] See also Figure 7 In one embodiment, the thermal management system may optionally further include:

[0126] The second electronic four-way valve 23 is connected at the intersection of the waste heat circulation loop L1 and the battery thermal circulation loop L3; the first port of the second electronic four-way valve 23 is connected to the battery 310, the second port and the third port of the second electronic four-way valve 23 are connected to the main pipe of the waste heat circulation loop L1, and the second port of the second electronic four-way valve 23 is connected to the other end of the battery 310.

[0127] By controlling the internal connection relationship of the four ports of the second electronic four-way valve 23, the flow path of the circulating liquid in the waste heat circulation loop L1 and the battery thermal circulation loop L3 can be controlled. For example, when the first port and the fourth port are connected, and the third port and the second port are connected, the waste heat circulation loop L1 and the battery thermal circulation loop L3 circulate independently; when the first port and the second port are connected, and the third port and the fourth port are connected, the circulating liquid in the waste heat circulation loop L1 circulates through the battery thermal circulation loop L3, and the battery thermal circulation loop L3 uses the waste heat generated by the waste heat supply module 110 to heat the battery 310.

[0128] This invention provides an embodiment where a second electronic four-way valve 23 is installed at the intersection of the waste heat circulation loop L1 and the battery thermal circulation loop L3. This allows for control of the flow path of the circulating liquid in the waste heat circulation loop L1 and the battery thermal circulation loop L3, thus enriching the functionality of the thermal management system.

[0129] Figure 8 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention. (Reference) Figure 8 In one embodiment, the battery thermal cycle circuit L3 is optionally coupled to the absorption air conditioning thermal cycle circuit L2, thereby enabling the battery 310 to be heated or cooled using the circulating working fluid in the battery thermal cycle circuit L3.

[0130] See also Figure 8 In one embodiment, the battery thermal cycle loop L3 may optionally include a battery heat exchanger 320, through which the absorption air conditioning thermal cycle loop L2 and the battery thermal cycle loop L3 exchange heat; the battery thermal cycle loop L3 is used to heat or cool the battery 310.

[0131] For example, the operating principle of the thermal management system for heating the battery 310 is as follows: by controlling the internal connection relationship of the four ports of the second electronic four-way valve 23, the flow path of the circulating liquid in the waste heat circulation loop L1 and the battery thermal circulation loop L3 can be controlled. When the first port and the fourth port are connected, and the third port and the second port are connected, the waste heat circulation loop L1 and the battery thermal circulation loop L3 circulate independently. The battery thermal circulation loop L3 uses the circulating working fluid cooled in the absorption air conditioning thermal circulation loop L2 to exchange heat through the battery heat exchanger 320, thereby reducing the temperature of the circulating liquid in the battery thermal circulation loop L3 and cooling the battery 310. When the first port and the second port are connected, and the third port and the fourth port are connected, the circulating liquid in the waste heat circulation loop L1 circulates through the battery thermal circulation loop L3, and the battery thermal circulation loop L3 uses the waste heat generated by the waste heat supply module 110 to heat the battery 310.

[0132] Figure 9 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention. (Reference) Figure 9 In one embodiment, the waste heat circulation loop L1 may optionally include a first electronic water pump 150, which drives the flow of circulating liquid in the waste heat circulation loop L1. The first electronic water pump 150 helps to increase the flow rate of the circulating liquid in the waste heat circulation loop L1, thereby improving the system heat exchange efficiency.

[0133] Continue to refer to Figure 9 In one embodiment, the battery thermal circulation loop L3 may optionally include a second electronic water pump 330, which drives the flow of circulating liquid in the battery thermal circulation loop L3. The second electronic water pump 330 helps to increase the flow rate of the circulating liquid in the battery thermal circulation loop L3, thereby improving the heating and cooling efficiency of the battery 310.

[0134] Figure 10 This is a schematic diagram of another thermal management system provided in an embodiment of the present invention. (Reference) Figure 10 Based on the above embodiments, the thermal management system may optionally include a waste heat circulation loop L1, an absorption air conditioning thermal circulation loop L2, and a battery thermal circulation loop L3.

[0135] The waste heat circulation loop L1 includes a waste heat supply module 110 (e.g., a range extender), a first electronic water pump 150, a second electronic three-way valve 140, a low-temperature radiator 120, and a first electronic three-way valve 130, arranged sequentially. The absorption air conditioning heat circulation loop L2 includes a working fluid circulation module 210, an air conditioning unit module 220, a first electronic four-way valve 250, a water-cooled condenser 12, an outdoor heat exchanger 230, an intermediate heat exchanger 240, and a third full-port throttling valve ERV5. The battery heat circulation loop L3 includes a second electronic water pump 330, a battery heat exchanger 320, and a battery 310, arranged sequentially.

[0136] The working fluid circulation module 210 includes a generator 211, an absorber 212, a throttle valve 213, a solution pump 214, a first waste heat exchanger 217, and a second waste heat exchanger 216. The air conditioning unit module 220 includes a main heat exchanger 221 for the passenger compartment, an auxiliary heat exchanger 222 for the passenger compartment, a first full-way throttle valve ERV1, a second full-way throttle valve ERV4, an electromagnetic control valve SOV, a blower, and a hot / cold air damper.

[0137] The waste heat supply module 110 in the first circulation pipeline L1 provides a heat source to the generator 211 in the second circulation pipeline L2. The first circulation pipeline L1 and the second circulation pipeline L2 also exchange heat through a water-cooled condenser 12. The first circulation pipeline L1 and the second circulation pipeline L2 also exchange heat through an outdoor heat exchanger 230 and a low-temperature radiator 120. The first circulation pipeline L1 and the third circulation pipeline L3 switch the flow path of the circulating liquid through a second electronic four-way valve 23. The second circulation pipeline L2 and the third circulation pipeline L3 exchange heat through a battery heat exchanger 320.

[0138] In summary, the embodiments of the present invention can achieve a variety of modes, including shared cooling of the passenger compartment and battery, separate cooling of the passenger compartment, separate cooling of the battery, dehumidification of the passenger compartment, shared heating of the passenger compartment and battery, separate heating of the passenger compartment, and separate heating of the battery, providing a rich range of functions. Furthermore, the embodiments of the present invention apply absorption refrigeration to range-extended vehicles, utilizing the waste heat from the range extender to save energy consumption in thermal management; when the range extender is not working or the waste heat is insufficient, the circulation is driven by auxiliary heating using a positive temperature coefficient resistor 216; this avoids the vibration, noise, and acoustic roughness problems caused to the entire vehicle by compressor operation; and the working fluid fully regenerates heat during the circulation process, improving the system's circulation efficiency.

[0139] It should be noted that in the above embodiments, the positions of various structures, modules, valves, etc. can be adjusted as needed. For example, the first electronic water pump 150 can also be positioned between the waste heat supply module 110 and the working fluid circulation module 210; the positions of the battery heat exchanger 320 and the battery 310 can be interchanged, etc., which will not be listed one by one.

[0140] This invention also provides a thermal management control method, applied to the thermal management system provided in any embodiment of this invention, and possessing corresponding beneficial effects. Exemplarily, the thermal management system further includes a controller, and the thermal management control method can be executed by the controller. The thermal management control method includes:

[0141] By controlling the flow path of the circulating liquid in the waste heat circulation loop L1, and controlling the flow rate, direction, and flow path of the circulating working fluid in the absorption air conditioning heat circulation loop L2, the passenger compartment can be cooled, dehumidified, or heated.

[0142] Optionally, the thermal management control method further includes:

[0143] The battery 310 is cooled or heated by controlling the flow rate and flow path of the circulating liquid in the battery thermal circulation loop L3.

[0144] Specifically, the embodiments of the present invention can realize a shared cooling mode for the passenger compartment and the battery, a separate cooling mode for the passenger compartment, a separate cooling mode for the battery, a dehumidification mode for the passenger compartment, a shared heating mode for the passenger compartment and the battery, a separate heating mode for the passenger compartment, and a separate heating mode for the battery, etc. The following is a detailed description, but it is not intended to limit the present invention.

[0145] Figure 11 This is a schematic diagram illustrating the working principle of a thermal management system in which the passenger compartment and battery are cooled together, as provided in an embodiment of the present invention. See also... Figure 11 In one embodiment, optionally, in response to the combined cooling mode of the passenger compartment and the battery, the circulating liquids in the waste heat circulation loop L1 and the battery thermal circulation loop L3 are controlled to circulate separately; wherein, the circulating liquid in the waste heat circulation loop L1 is controlled to provide a heat source to the working fluid circulation module in the absorption air conditioning thermal circulation loop L2 through the waste heat supply module 110; the evaporating circulating working fluid in the working fluid circulation module 210 is controlled to flow to the air conditioning box module 220 for circulation after heat exchange to cool the passenger compartment; the other part exchanges heat with the circulating liquid in the battery thermal circulation loop L3 to cool the battery.

[0146] Specifically, the system controls the connection of the third and fourth ports of the first electronic four-way valve 250, and the connection of the second port to the first port; controls the connection of the third port of the second electronic four-way valve 23 to the second port, and the connection of the first port to the fourth port; controls the connection of the first port to the third port of the first electronic three-way valve 130; controls the connection of the third port to the second port of the second electronic three-way valve 140; controls the first full-way throttle valve ERV1 and the second full-way throttle valve ERV4 to be fully open; controls the third full-way throttle valve ERV5 to be fully open; controls the solenoid control valve SOV to be closed; and controls the second electronic water pump 330 to be open.

[0147] The waste heat supply module 110 uses the waste heat provided by the range extender, etc., to provide a heat source for the generator 211, heating the solution (such as lithium bromide solution) in the generator 211 into a high-temperature medium. During the solution heating process, the low-concentration circulating working fluid evaporates into high-concentration steam. The circulating working fluid steam passes through the water-cooled condenser 12, where the circulating liquid in the waste heat circulation loop L1 serves as the cooling medium, causing the circulating working fluid to condense into a liquid state. This allows it to absorb more heat during subsequent evaporation, thereby achieving a cooling effect. Furthermore, the condensed liquid circulating working fluid exchanges heat with the external environment through the outdoor heat exchanger 230, further cooling the circulating working fluid. At the same time, the low-temperature radiator 120, combined with the outdoor heat exchanger 230, dissipates the high temperature of the outdoor heat exchanger 230 into the surrounding environment, which is beneficial for further cooling of the circulating working fluid. The circulating working fluid then flows through the intermediate heat exchanger 240, where the high-temperature circulating working fluid coupled from the absorption air conditioning thermal cycle loop L2 exchanges heat with the low-temperature working fluid from the outdoor heat exchanger 230. This further reduces the temperature of the circulating working fluid flowing to the air conditioning unit module 220, thus facilitating further utilization of system heat. The circulating working fluid then enters the air conditioning unit module 220 through the opened second full-way throttle valve ERV4 to cool the passenger compartment; and enters the battery heat exchanger 320 through the opened third full-way throttle valve ERV5, where it exchanges heat with the battery thermal cycle loop L3 to cool the battery. The circulating working fluid flowing out of the air conditioning unit module 220 and the working fluid flowing out of the battery heat exchanger 320 are combined and returned to the intermediate heat exchanger 240 through the first electronic four-way valve 250, and then flow back to the absorber 212, where they react with the absorbent (such as lithium bromide) in the concentrated solution to form a new low-concentration solution, which is then returned to the generator 211 through the solution pump 214 to prepare for the next refrigeration cycle.

[0148] Therefore, the embodiments of the present invention can achieve joint cooling of the passenger compartment and the battery, and the entire cooling process achieves system cooling by consuming waste heat, realizing energy cascade utilization, reducing the overall vehicle energy consumption, and compared with existing methods, energy... It is highly efficient, emits little heat, causes minimal heat damage, and reduces vibration and noise because it does not require a compressor.

[0149] In one embodiment, optionally, in response to the individual cooling mode of the passenger compartment, the circulating liquid in the waste heat circulation loop L1 is controlled to provide a heat source to the working fluid circulation module 210 in the absorption air conditioning heat circulation loop L2 through the waste heat supply module 110; the evaporating circulating working fluid in the working fluid circulation module 210 is controlled to flow to the air conditioning box module 220 for circulation after heat exchange, so as to cool the passenger compartment.

[0150] Unlike the shared cooling mode for the crew compartment and battery, the separate cooling mode for the crew compartment does not require cooling the battery; simply closing the third full-pass throttle valve ERV5 and the second electric water pump 330 is sufficient.

[0151] In one embodiment, optionally, in response to the battery-only cooling mode, the circulating liquids in the waste heat circulation loop L1 and the battery thermal circulation loop L3 are controlled to circulate separately; wherein, the circulating liquid in the waste heat circulation loop L1 is controlled to provide a heat source to the working fluid circulation module 210 in the absorption air conditioning thermal circulation loop L2 through the waste heat supply module 110; the evaporated circulating working fluid in the working fluid circulation module 210 is controlled to flow to the air conditioning box module 220 for cooling after heat exchange, and exchange heat with the circulating liquid in the battery thermal circulation loop L3 to cool the battery.

[0152] Unlike the shared cooling mode for the passenger compartment and battery, the battery-only cooling mode does not require cooling the passenger compartment; simply closing the first full-way throttle valve ERV1 and the second full-way throttle valve ERV2 is sufficient.

[0153] Figure 12 This is a schematic diagram illustrating the working principle of the passenger compartment dehumidification mode of a thermal management system provided in this embodiment of the invention. (See also...) Figure 12 In one embodiment, optionally, in response to the passenger cabin dehumidification mode, the circulating liquid in the waste heat circulation loop L1 is controlled to provide a heat source to the working fluid circulation module 210 in the absorption air conditioning heat circulation loop L2 through the waste heat supply module 110; the evaporating circulating working fluid in the working fluid circulation module 210 is controlled to exchange heat after being throttled by the air conditioning box module 220 and then circulated to dehumidify the passenger cabin.

[0154] Specifically, the third port of the first electronic four-way valve 250 is connected to the second port, and the fourth port is connected to the first port; the third port of the second electronic four-way valve 23 is connected to the second port, and the first port is connected to the fourth port; the first port and the third port of the first electronic three-way valve 130 are connected; the third port and the second port of the second electronic three-way valve 140 are connected; the first full-way throttle valve ERV1 is partially open; the second full-way throttle valve ERV4 is fully open; the third full-way throttle valve ERV5 is closed; the solenoid control valve SOV is closed; and the second electronic water pump 330 is closed.

[0155] The waste heat supply module 110 uses the waste heat provided by the range extender and other components to provide a heat source for the generator 211, heating the solution (such as lithium bromide solution) in the generator 211 into a high-temperature medium. During the solution heating process, the low-concentration circulating working fluid evaporates into high-concentration steam. The circulating working fluid steam heats the air in the crew compartment through the auxiliary heat exchanger 222, then is throttled and cooled through the first full-way throttle valve ERV1, and then undergoes heat exchange and cooling through the main heat exchanger 221 of the crew compartment to dehumidify the crew compartment. The circulating working fluid flowing out of the air conditioning unit module 220 flows through the intermediate heat exchanger 240. The circulating working fluid from the main pipe of the absorption air conditioning heat circulation loop L2 and the circulating working fluid from the air conditioning unit module 220 exchange heat, which reduces the temperature of the circulating working fluid flowing to the outdoor heat exchanger 230. The circulating working fluid exchanges heat with the external environment through the outdoor heat exchanger 230, and the circulating working fluid is further cooled down. At the same time, the low temperature radiator 120 is combined with the outdoor heat exchanger 230, which can dissipate the high temperature of the outdoor heat exchanger 230 to the surrounding environment, thereby facilitating further cooling of the circulating working fluid. The circulating working fluid then passes through the water-cooled condenser 12, where the circulating liquid in the waste heat circulation loop L1 acts as the cooling medium, causing the circulating working fluid to condense into a liquid state. The circulating working fluid then returns to the intermediate heat exchanger 240 through the first electronic four-way valve 250, and then flows back to the absorber 212, where it reacts with the absorbent (such as lithium bromide) in the concentrated solution to form a new low-concentration solution. This solution is then returned to the generator 211 via the solution pump 214 to prepare for the next refrigeration cycle.

[0156] Therefore, the embodiments of the present invention can achieve dehumidification of the passenger compartment, and the entire dehumidification process achieves system cooling by consuming waste heat, realizing energy cascade utilization, reducing the overall vehicle energy consumption, and compared with existing methods, energy consumption is significantly reduced. It is highly efficient, emits little heat, causes minimal heat damage, and reduces vibration and noise because it does not require a compressor.

[0157] Figure 13 This is a schematic diagram illustrating the working principle of a thermal management system in which the passenger compartment and battery are heated together, as provided in an embodiment of the present invention. See also... Figure 13 In one embodiment, optionally, in response to the co-heating mode of the passenger compartment and the battery, the circulating liquids in the waste heat circulation loop L1 and the battery thermal circulation loop L3 are mixed and circulated; the circulating liquids in the waste heat circulation loop L1 are controlled to provide a heat source to the absorption air conditioning thermal circulation loop L2 through the waste heat supply module 110 while heating the battery; the evaporated circulating working fluid in the working fluid circulation module 210 is controlled to circulate through the air conditioning box module 220 to heat the passenger compartment.

[0158] Specifically, the system controls the third and second ports of the first electronic four-way valve 250 to be connected, and the fourth port to be connected to the first port; controls the third and fourth ports of the second electronic four-way valve 23 to be connected, and the first and second ports to be connected; controls the second and third ports of the first electronic three-way valve 130 to be connected; controls the third and first ports of the second electronic three-way valve 140 to be connected; controls the first full-way throttle valve ERV1 to be open; controls the second full-way throttle valve ERV4 to be closed; controls the third full-way throttle valve ERV5 to be closed; controls the solenoid control valve SOV to be open; and controls the second electronic water pump 330 to be open.

[0159] The waste heat supply module 110 uses the waste heat provided by the range extender, etc., to provide a heat source for the generator 211, heating the solution (such as lithium bromide solution) in the generator 211 into a high-temperature medium. During the solution heating process, the low-concentration circulating working fluid evaporates into high-concentration steam. The circulating working fluid steam heats the air in the crew compartment through the auxiliary heat exchanger 222, and then enters the main heat exchanger 221 of the crew compartment through the first full-way throttle valve ERV1 for heat exchange to heat the crew compartment. The circulating working fluid flowing out of the air conditioning unit module 220 flows back to the absorber 212 through the electromagnetic control valve SOV, reacts with the absorbent (such as lithium bromide) in the concentrated solution to form a new low-concentration solution, and then flows back to the generator 211 through the solution pump 214 to prepare for the next refrigeration cycle. Meanwhile, the circulating liquid in the waste heat circulation loop L1 is heated by the waste heat supply module 110. The heated circulating liquid flows through the pipe into the working fluid circulation module 210 and then into the battery thermal circulation loop L3, where the higher temperature circulating liquid can be used to heat the battery 310. Although the temperature of the circulating liquid decreases, it is still sufficient to meet the battery's heating requirements since the temperature required for battery heating is usually not high.

[0160] Therefore, the embodiments of the present invention can achieve simultaneous heating of the passenger compartment and the battery, and the entire heating process is achieved by consuming waste heat, realizing energy cascade utilization, reducing the overall vehicle energy consumption, and compared with existing methods, energy... It is highly efficient, emits little heat, causes minimal heat damage, and reduces vibration and noise because it does not require a compressor.

[0161] In one embodiment, optionally, in response to the individual heating mode of the passenger compartment, the circulating liquid in the waste heat circulation loop L1 is controlled to provide a heat source to the working fluid circulation module 210 of the absorption air conditioning heat circulation loop L2 through the waste heat supply module 110; the evaporating circulating working fluid in the working fluid circulation module 210 is controlled to circulate through the air conditioning box module 220 to heat the passenger compartment.

[0162] Unlike the combined heating mode of the crew compartment and battery, the crew compartment separate heating mode does not require heating the battery. It only requires controlling the third port of the second electronic four-way valve 23 to connect to the second pipe port, the first pipe port and the fourth pipe port, and turning off the second electronic water pump 330.

[0163] In one embodiment, optionally, in response to the battery-only heating mode, the circulating liquid in the waste heat circulation loop L1 and the battery thermal circulation loop L3 is mixed and circulated, and the circulating liquid in the waste heat circulation loop L1 is heated by the waste heat supply module 110 to heat the battery.

[0164] Unlike the combined heating mode of the passenger compartment and battery, the battery-only heating mode does not require heating of the passenger compartment; simply closing the solenoid control valve SOV is sufficient.

[0165] This invention also provides a vehicle that includes the thermal management system provided in any embodiment of this invention and has corresponding beneficial effects, which will not be described in detail here.

[0166] The vehicle is equipped with a range extender, which utilizes the waste heat from the range extender, engine, motor, and controller to cool the vehicle. This method of cooling by consuming heat achieves energy cascade utilization and energy efficiency. It is highly efficient, consumes less energy, emits less heat, and causes less thermal damage. Furthermore, since it does not require a compressor, it can reduce vibration and noise.

[0167] The vehicles may include, but are not limited to, automobiles and engineering vehicles. The specific vehicles can be set according to the actual situation and are not specifically limited here.

[0168] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0169] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A thermal management system, characterized by, Comprise: a waste heat circulation loop; an absorption air conditioner heat circulation loop; coupled with the waste heat circulation loop, and the waste heat circulation loop is used for supplying heat source for the absorption air conditioner heat circulation loop.

2. The thermal management system of claim 1, wherein, The absorption air conditioner heat circulation loop comprises: a working medium circulation module; coupled with the waste heat circulation loop, absorbing heat supplied by the waste heat circulation loop.

3. The thermal management system of claim 2, wherein, The working medium circulation module comprises: a generator; a first waste heat heat exchanger; provided in the generator, and coupled with the waste heat circulation loop; the circulating liquid in the waste heat circulation loop heats the solution in the generator through the first waste heat heat exchanger.

4. The thermal management system of claim 3, wherein, The working medium circulation module further comprises: an auxiliary waste heat heating unit; provided in the generator, and heated by a power supply circuit.

5. The thermal management system of claim 3, wherein, The working medium circulation module further comprises an absorber, a throttle valve and a solution pump; Wherein, the throttle valve is connected between the solution outlet of the generator and the solution inlet of the absorber, and the solution pump is connected between the solution outlet of the absorber and the solution inlet of the absorber; The steam outlet of the generator outputs the evaporated circulating working medium, and the reflux inlet of the absorber recovers the circulating working medium; the circulating working medium circulates in the absorption air conditioner heat circulation loop.

6. The thermal management system of claim 2, wherein, The absorption air conditioner heat circulation loop further comprises an air conditioner box module, a water-cooled condenser and an outdoor heat exchanger; Wherein, the air conditioner box module exchanges heat with the passenger cabin air through the circulating working medium evaporated by the working medium circulation module; The water-cooled condenser is coupled with the waste heat circulation loop to exchange heat between the circulating liquid of the waste heat circulation loop and the circulating working medium of the absorption air conditioner heat circulation loop; The outdoor heat exchanger is coupled with the waste heat circulation loop to exchange heat between the circulating liquid of the waste heat circulation loop and the circulating working medium of the absorption air conditioner heat circulation loop.

7. The thermal management system of claim 6, wherein, The absorption air conditioner heat circulation loop further comprises an intermediate heat exchanger and a first electronic four-way valve; The first pipe port of the intermediate heat exchanger is connected to the first pipe port of the first electronic four-way valve; the second pipe port of the intermediate heat exchanger is connected to the reflux inlet of the working medium circulation module; the third pipe port of the intermediate heat exchanger is connected to the outdoor heat exchanger, and the fourth pipe port of the intermediate heat exchanger is connected to the air conditioner box module; The second pipe port of the first electronic four-way valve is connected to the air conditioner box module, the third pipe port of the first electronic four-way valve is connected to the steam outlet of the working medium circulation module, and the fourth pipe port of the first electronic four-way valve is connected to the water-cooled condenser.

8. The thermal management system of claim 7, wherein, The air conditioner box module comprises a passenger cabin main heat exchanger, a passenger cabin auxiliary heat exchanger, a first full-pass throttle valve, a second full-pass throttle valve and an electromagnetic control valve; The passenger cabin auxiliary heat exchanger, the first full-pass throttle valve, the passenger cabin main heat exchanger and the second full-pass throttle valve are sequentially connected between the second pipe port of the first electronic four-way valve and the fourth pipe port of the intermediate heat exchanger; The electromagnetic control valve is connected between the passenger cabin main heat exchanger and the second pipe port of the intermediate heat exchanger.

9. The thermal management system of claim 1, wherein, The waste heat circulation loop comprises: a waste heat supply module, for heating a circulating liquid, through which the circulating liquid is coupled with the absorption air conditioner heat cycle loop; a low temperature heat sink, which is coupled with the absorption air conditioner heat cycle loop.

10. The thermal management system of claim 9, wherein, The waste heat cycle loop further comprises: a first electronic three-way valve, which is connected between the waste heat supply module and the low temperature heat sink; a first port and a second port of the first electronic three-way valve are respectively connected to two ends of the low temperature heat sink through pipes, and a third port of the first electronic three-way valve is connected to an inlet port of the waste heat supply module; and / or, a second electronic three-way valve, a first port, a second port and a third port of the second electronic three-way valve are respectively connected to different positions of the waste heat cycle loop through pipes; the second electronic three-way valve is used to switch whether the waste heat cycle loop exchanges heat with the absorption air conditioner heat cycle loop.

11. The thermal management system of claim 9 or 10, wherein, The waste heat supply module comprises at least one of an expander, an engine, an electric motor and an electric motor controller.

12. The thermal management system of claim 1, wherein, Further comprising: a battery heat cycle loop, which is coupled with the waste heat cycle loop; and / or, which is coupled with the absorption air conditioner heat cycle loop.

13. The thermal management system of claim 12, wherein, The battery heat cycle loop comprises: a battery heat exchanger, through which the absorption air conditioner heat cycle loop and the battery heat cycle loop exchange heat.

14. The thermal management system of claim 13, wherein, The battery heat cycle loop further comprises: a second electronic four-way valve, which is connected at the intersection of the waste heat cycle loop and the battery heat cycle loop; a first port of the second electronic four-way valve is connected to a battery, a second port and a third port of the second electronic four-way valve are connected in the waste heat cycle loop, and a fourth port of the second electronic four-way valve is connected to the battery heat exchanger.

15. A thermal management control method, characterized by, Applied to the thermal management system of any one of claims 1-14; the thermal management control method comprises: controlling the flow path of the circulating liquid in the waste heat cycle loop, and controlling the flow rate, flow direction and flow path of the circulating working medium in the absorption air conditioner heat cycle loop, to cool, dehumidify or heat the passenger compartment.

16. The thermal management control method of claim 15, wherein, in response to a passenger compartment cooling mode alone; controlling the circulating liquid in the waste heat cycle loop to pass through the waste heat supply module to provide a heat source to the working medium circulation module in the absorption air conditioner heat cycle loop; controlling the evaporated circulating working medium in the working medium circulation module to flow to the air conditioner box module after heat exchange to circulate, to cool the passenger compartment; or, in response to a passenger compartment dehumidification mode; controlling the circulating liquid in the waste heat cycle loop to pass through the waste heat supply module to provide a heat source to the working medium circulation module in the absorption air conditioner heat cycle loop; controlling the evaporated circulating working medium in the working medium circulation module to pass through the air conditioner box module to circulate, to dehumidify the passenger compartment; or, in response to a passenger compartment heating mode alone; controlling the circulating liquid in the waste heat cycle loop to pass through the waste heat supply module to provide a heat source to the working medium circulation module in the absorption air conditioner heat cycle loop; controlling the evaporated circulating working medium in the working medium circulation module to pass through the air conditioner box module to circulate, to heat the passenger compartment.

17. The thermal management control method of claim 15, wherein, The thermal management control method further comprises: cooling or heating the battery by controlling the flow rate and flow path of the circulating liquid in the battery thermal circulation loop.

18. The thermal management control method of claim 17, wherein, in response to a common cooling mode of the passenger cabin and the battery; controlling the circulating liquid in the waste heat circulation loop and the battery thermal circulation loop to circulate separately; wherein the circulating liquid in the waste heat circulation loop is controlled to pass through the waste heat supply module to provide a heat source to the working fluid circulation module in the absorption type air conditioner thermal circulation loop; controlling the evaporated circulating working fluid in the working fluid circulation module to flow to the air conditioner box module for circulation after heat exchange, to cool the passenger cabin; and another part to exchange heat with the circulating liquid in the battery thermal circulation loop to cool the battery; or, in response to a common heating mode of the passenger cabin and the battery; controlling the circulating liquid in the waste heat circulation loop and the battery thermal circulation loop to circulate mixedly; controlling the circulating liquid in the waste heat circulation loop to pass through the waste heat supply module to provide a heat source to drive the absorption type air conditioner thermal circulation loop while heating the battery; controlling the evaporated circulating working fluid in the working fluid circulation module to pass through the air conditioner box module for circulation to heat the passenger cabin; or, in response to a battery-only cooling mode; controlling the circulating liquid in the waste heat circulation loop and the battery thermal circulation loop to circulate separately; wherein the circulating liquid in the waste heat circulation loop is controlled to pass through the waste heat supply module to provide a heat source to the working fluid circulation module in the absorption type air conditioner thermal circulation loop; controlling the evaporated circulating working fluid in the working fluid circulation module to flow to the air conditioner box module for cooling after heat exchange, to exchange heat with the circulating liquid in the battery thermal circulation loop to cool the battery; or, in response to a battery-only heating mode; controlling the circulating liquid in the waste heat circulation loop and the battery thermal circulation loop to circulate mixedly, and controlling the circulating liquid in the waste heat circulation loop to be heated by the waste heat supply module to heat the battery.

19. A vehicle characterized by comprising: The thermal management system comprises the thermal management system according to any one of claims 1-14.

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