Wide-temperature-range heat pump air conditioner thermal management system, vehicle and storage medium

Abstract

The application provides a wide-temperature-range heat pump air conditioner heat management system, a vehicle and a storage medium, wherein the system comprises a first condenser, a second condenser, an evaporator, a water chiller, a power battery electric drive liquid cooling circuit, a gas-liquid separator, a plurality of electromagnetic valves and a plurality of electronic expansion valves, the refrigeration function of the passenger cabin is mainly realized by heat absorption of the evaporator, the heating function of the passenger cabin is mainly realized by heat release of the built-in condenser, and the heating effect is ensured by air PTC (APTC) auxiliary heating in an extremely cold scene. The cooling and heating of the battery are mainly realized by the Chiller, the refrigerant temperature in the control system is controlled through different working modes, the cooling liquid temperature of the external power battery system is cooled or heated, and the cooling and heating functions of the battery are realized.

Description

A wide-temperature-range heat pump air conditioning thermal management system, vehicle and storage medium Technical Field

[0001] This invention belongs to the field of vehicles, and particularly relates to a wide temperature range heat pump air conditioning thermal management system, a vehicle, and a storage medium. Background Technology

[0002] The short driving range of electric vehicles is a problem that urgently needs to be solved. Since electric vehicles do not have the waste heat of the engine that can be utilized, electric PTC heating is required in winter heating conditions. The use of PTC will reduce the driving range by about 40%. A heat pump system with COP>1 can effectively solve the problem of the greatly reduced driving range of electric vehicles in winter heating conditions.

[0003] Currently, the application of pure electric new energy vehicles is becoming more and more widespread. The air conditioning system has expanded from the traditional function of cooling and heating the passenger compartment to also take on the function of cooling and heating the battery. At the same time, in order to improve the COP (coefficient of performance) of the system in winter, the application of heat pump systems is also increasing. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention proposes a technical solution for a wide-temperature-range heat pump air conditioning thermal management system, a vehicle, and a storage medium.

[0005] The first aspect of this invention discloses a wide-temperature-range heat pump air conditioning thermal management system; the system includes:

[0006] The system includes a first condenser, a second condenser, an evaporator, a chiller, a power battery-driven liquid cooling circuit, a gas-liquid separator, multiple solenoid valves, and multiple electronic expansion valves, among which:

[0007] The first end of the first condenser is connected to the first end of the first solenoid valve and the first end of the third solenoid valve respectively. The second end of the first solenoid valve is connected to the first end of the fifth solenoid valve. The second end of the fifth solenoid valve is connected to the chiller. The first end of the first check valve and the first end of the fourth solenoid valve are connected to the first end of the third solenoid valve respectively. The second end of the first check valve is connected to the first end of the evaporator. The second end of the fourth solenoid valve is connected to the second end of the fifth solenoid valve.

[0008] The second end of the condenser is connected to the first end of the first electronic expansion valve and the first end of the second one-way valve, respectively. The second end of the second one-way valve is connected to the chiller. The second end of the evaporator is connected to the first end of the second electronic expansion valve. The chiller is connected to the first end of the third electronic expansion valve. The second ends of the first electronic expansion valve, the second end of the second electronic expansion valve, and the second end of the third electronic expansion valve are connected.

[0009] The chiller is connected to the power battery's electrically driven liquid cooling circuit.

[0010] According to a system based on a first aspect of the present invention, in a cooling and battery cooling operating mode, the system includes:

[0011] The first end of the first condenser is connected to the first end of the first solenoid valve. The second end of the first solenoid valve is connected to the first end of the EDC. The second end of the EDC is connected to the first end of the gas-liquid separator. The second end of the gas-liquid separator is connected to the first end of the first check valve. The second end of the first check valve is connected to the first end of the evaporator. The second end of the evaporator is connected to the first end of the second electronic expansion valve. The second end of the second electronic expansion valve is connected to the first end of the second check valve. The second end of the second check valve is connected to the second end of the first condenser.

[0012] The first end of the fourth solenoid valve is connected to the first end of the first check valve, the second end of the fourth solenoid valve is connected to the first end of the chiller, the second end of the chiller is connected to the first end of the third electronic expansion valve, and the second end of the third electronic expansion valve is connected to the second end of the second electronic expansion valve.

[0013] According to a system based on a first aspect of the present invention, in a cooling and battery cooling operating mode, the system includes:

[0014] The first end of the first condenser is connected to the first end of the third solenoid valve, the first end of the third solenoid valve is connected to the first end of the gas-liquid separator, the second end of the gas-liquid separator is connected to the first end of the second solenoid valve, the second end of the second solenoid valve is connected to the first end of the second condenser, the second end of the second condenser is connected to the first end of the first electronic expansion valve, and the second end of the first electronic expansion valve is connected to the second end of the first condenser.

[0015] The first end of the second solenoid valve is also connected to the first end of the fifth solenoid valve, the second end of the fifth solenoid valve is connected to the first end of the chiller, and the second end of the chiller is connected to the first end of the first electronic expansion valve.

[0016] According to the system of the first aspect of the present invention, in the heating, battery heating and dehumidification operating modes, the system further includes:

[0017] The first end of the first condenser is connected to the first end of the gas-liquid separator and the first end of the first check valve, respectively. The second end of the gas-liquid separator is connected to the first end of the second solenoid valve. The first end of the second solenoid valve is also connected to the first end of the fifth solenoid valve. The second end of the fifth solenoid valve is connected to the first end of the chiller. The second end of the chiller is connected to the first end of the first electronic expansion valve. The second end of the first electronic expansion valve is connected to the second end of the first condenser.

[0018] The second end of the first one-way valve is connected to the first end of the evaporator, the second end of the evaporator is connected to the first end of the second electronic expansion valve, and the second end of the second electronic expansion valve is connected to the first end of the first electronic expansion valve.

[0019] The second end of the second solenoid valve is connected to the first end of the second condenser, and the second end of the second condenser is connected to the first end of the first electronic expansion valve.

[0020] According to the system of the first aspect of the present invention, in the heating, battery cooling and dehumidification operating modes, the system further includes:

[0021] The first end of the chiller is connected to the second end of the fourth solenoid valve, the first end of the fourth solenoid valve is connected to the first end of the first check valve, the second end of the first check valve is connected to the first end of the evaporator, the second end of the evaporator is connected to the first end of the second electronic expansion valve, the second end of the second electronic expansion valve is connected to the second end of the third electronic expansion valve, and the first end of the third electronic expansion valve is connected to the second end of the chiller.

[0022] The first end of the fourth solenoid valve is connected to the first end of the gas-liquid separator, the second end of the gas-liquid separator is connected to the first end of the second solenoid valve, the second end of the second solenoid valve is connected to the first end of the second condenser, and the second end of the second condenser is connected to the second end of the second electronic expansion valve.

[0023] According to the system of the first aspect of the present invention, the second condenser is a built-in condenser.

[0024] A second aspect of the present invention provides a vehicle, the device including a memory and a processor, the memory storing a computer program that, when executed by the processor, performs a method in a wide-temperature-range heat pump air conditioning thermal management system as described in the first aspect of the present invention.

[0025] A third aspect of the present invention provides a storage medium storing a computer program that can be executed by one or more processors to implement a method in a wide-temperature-range heat pump air conditioning thermal management system as described in the first aspect of the present invention.

[0026] As can be seen, the system proposed in this invention includes: a first condenser, a second condenser, an evaporator, a chiller, a power battery-driven liquid cooling circuit, a gas-liquid separator, multiple solenoid valves, and multiple electronic expansion valves. Specifically: the first end of the first condenser is connected to the first end of both the first and third solenoid valves; the second end of the first solenoid valve is connected to the first end of the fifth solenoid valve; the second end of the fifth solenoid valve is connected to the chiller; the first ends of the first and fourth solenoid valves are connected to the first end of the third solenoid valve; the second end of the first one-way valve is connected to the first end of the evaporator; and the second end of the fourth solenoid valve is connected to the second end of the fifth solenoid valve. The second end is connected to the first end of the first electronic expansion valve and the first end of the second one-way valve, respectively. The second end of the second one-way valve is connected to the chiller. The second end of the evaporator is connected to the first end of the second electronic expansion valve. The chiller is connected to the first end of the third electronic expansion valve. The second ends of the first electronic expansion valve, the second end of the second electronic expansion valve, and the second end of the third electronic expansion valve are connected. The chiller is connected to the power battery electric drive liquid cooling circuit. This system has comprehensive functions, covering almost all thermal management needs of the passenger compartment and battery. The system's heat pump function, in conjunction with the external water circuit, can realize the recovery and utilization of waste heat from the battery and motor, greatly improving the system's operating COP in winter. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 is a structural diagram of a wide temperature range heat pump air conditioning thermal management system according to an embodiment of the present invention;

[0029] Figure 2 is a structural schematic diagram of the refrigeration and battery cooling working mode according to an embodiment of the present invention;

[0030] Figure 3 is a structural schematic diagram of another refrigeration and battery cooling working mode according to an embodiment of the present invention;

[0031] Figure 4 is a structural schematic diagram of the heating, battery heating and dehumidification working modes according to an embodiment of the present invention;

[0032] Figure 5 is a structural schematic diagram of the heating, battery cooling and dehumidification working modes according to an embodiment of the present invention;

[0033] Figure 6 is a structural diagram of a vehicle according to an embodiment of the present invention. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0035] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0036] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0037] It should be understood that although the terms first, second, third, etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of this invention, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0038] Example 1:

[0039] The first aspect of this invention discloses a wide-temperature-range heat pump air conditioning thermal management system. Figure 1 is a structural diagram of a wide-temperature-range heat pump air conditioning thermal management system according to an embodiment of the present invention. Specifically, as shown in Figure 1, the system includes:

[0040] The system includes a first condenser, a second condenser, an evaporator, a chiller, a power battery-driven liquid cooling circuit, a gas-liquid separator, multiple solenoid valves, and multiple electronic expansion valves, among which:

[0041] The first end of the first condenser is connected to the first end of the first solenoid valve and the first end of the third solenoid valve respectively. The second end of the first solenoid valve is connected to the first end of the fifth solenoid valve. The second end of the fifth solenoid valve is connected to the chiller. The first end of the first check valve and the first end of the fourth solenoid valve are connected to the first end of the third solenoid valve respectively. The second end of the first check valve is connected to the first end of the evaporator. The second end of the fourth solenoid valve is connected to the second end of the fifth solenoid valve.

[0042] The second end of the condenser is connected to the first end of the first electronic expansion valve and the first end of the second one-way valve respectively. The second end of the second one-way valve is connected to the chiller. The second end of the evaporator is connected to the first end of the second electronic expansion valve. The chiller is connected to the first end of the third electronic expansion valve. The second ends of the first electronic expansion valve, the second end of the second electronic expansion valve and the second end of the third electronic expansion valve are connected.

[0043] The chiller is connected to the power battery's electric drive liquid cooling circuit.

[0044] The second condenser is a built-in condenser.

[0045] Specifically, in this embodiment of the invention, the flow direction function of the system under different working modes is realized by combining the switching of 5 SOV solenoid valves and 3 EXV electronic expansion valves.

[0046] The cooling function of the passenger compartment is mainly achieved by absorbing heat through the evaporator, while the heating function is mainly achieved by releasing heat through the built-in condenser. In extreme cold scenarios, the heating effect is ensured by auxiliary heating through air PTC (APTC).

[0047] The cooling and heating of the battery are mainly achieved through the chiller. By controlling the temperature of the refrigerant in the chiller through different operating modes, the system can cool or heat the coolant temperature of the external power battery system, thereby realizing the cooling and heating functions of the battery.

[0048] When the heat pump system is in heating mode, and there is residual heat available in the water temperature of the external power battery and the electric drive liquid cooling circuit, the system uses the chiller and the water valves of the external power battery and the electric drive liquid cooling circuit to adjust the refrigerant, i.e., waste heat recovery, and finally transfers the recovered heat to the passenger compartment for heating through the built-in condenser.

[0049] Example 2:

[0050] Figure 2 is a schematic diagram of the refrigeration and battery cooling operating mode according to an embodiment of the present invention; in the refrigeration and battery cooling operating mode, the system includes:

[0051] The first end of the first condenser is connected to the first end of the first solenoid valve, the second end of the first solenoid valve is connected to the first end of the EDC, the second end of the EDC is connected to the first end of the gas-liquid separator, the second end of the gas-liquid separator is connected to the first end of the first check valve, the second end of the first check valve is connected to the first end of the evaporator, the second end of the evaporator is connected to the first end of the second electronic expansion valve, the second end of the second electronic expansion valve is connected to the first end of the second check valve, and the second end of the second check valve is connected to the second end of the first condenser.

[0052] The first end of the fourth solenoid valve is connected to the first end of the first check valve, the second end of the fourth solenoid valve is connected to the first end of the chiller, the second end of the chiller is connected to the first end of the third electronic expansion valve, and the second end of the third electronic expansion valve is connected to the second end of the second electronic expansion valve.

[0053] Figure 3 is a schematic diagram of another cooling and battery cooling operating mode according to an embodiment of the present invention; in the cooling and battery cooling operating mode, the system includes:

[0054] The first end of the first condenser is connected to the first end of the third solenoid valve, the first end of the third solenoid valve is connected to the first end of the gas-liquid separator, the second end of the gas-liquid separator is connected to the first end of the second solenoid valve, the second end of the second solenoid valve is connected to the first end of the second condenser, the second end of the second condenser is connected to the first end of the first electronic expansion valve, and the second end of the first electronic expansion valve is connected to the second end of the first condenser.

[0055] The first end of the second solenoid valve is also connected to the first end of the fifth solenoid valve, the second end of the fifth solenoid valve is connected to the first end of the chiller, and the second end of the chiller is connected to the first end of the first electronic expansion valve.

[0056] Figure 4 is a structural schematic diagram of the heating, battery heating, and dehumidification operation modes according to an embodiment of the present invention; in the heating, battery heating, and dehumidification operation modes, the system further includes:

[0057] The first end of the first condenser is connected to the first end of the gas-liquid separator and the first end of the first check valve, respectively. The second end of the gas-liquid separator is connected to the first end of the second solenoid valve. The first end of the second solenoid valve is also connected to the first end of the fifth solenoid valve. The second end of the fifth solenoid valve is connected to the first end of the chiller. The second end of the chiller is connected to the first end of the first electronic expansion valve. The second end of the first electronic expansion valve is connected to the second end of the first condenser.

[0058] The second end of the first one-way valve is connected to the first end of the evaporator, the second end of the evaporator is connected to the first end of the second electronic expansion valve, and the second end of the second electronic expansion valve is connected to the first end of the first electronic expansion valve.

[0059] The second end of the second solenoid valve is connected to the first end of the second condenser, and the second end of the second condenser is connected to the first end of the first electronic expansion valve.

[0060] Figure 5 is a structural schematic diagram of the heating, battery cooling, and dehumidification operation modes according to an embodiment of the present invention; in the heating, battery cooling, and dehumidification operation modes, the system further includes:

[0061] The first end of the chiller is connected to the second end of the fourth solenoid valve, the first end of the fourth solenoid valve is connected to the first end of the first check valve, the second end of the first check valve is connected to the first end of the evaporator, the second end of the evaporator is connected to the first end of the second electronic expansion valve, the second end of the second electronic expansion valve is connected to the second end of the third electronic expansion valve, and the first end of the third electronic expansion valve is connected to the second end of the chiller.

[0062] The first end of the fourth solenoid valve is connected to the first end of the gas-liquid separator, the second end of the gas-liquid separator is connected to the first end of the second solenoid valve, the second end of the second solenoid valve is connected to the first end of the second condenser, and the second end of the second condenser is connected to the second end of the second electronic expansion valve.

[0063] In the specific implementation process, several working modes can be combined. Typical combined working modes are shown in Figures 2-4. There are a total of 12 working modes in the system, and the specific working states are shown in Table 1.

[0064] The system combination constructed by the embodiments of the present invention has comprehensive functions, covering almost all thermal management needs of the crew cabin and battery heating and cooling; the system's heat pump function, in conjunction with the external water circuit, can realize the recovery and utilization of waste heat from the battery and motor, greatly improving the system's operating COP in winter.

[0065] Table 1

[0066]

[0067] Example 3:

[0068] This invention discloses a vehicle, including a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, it implements the steps of the wide-temperature-range heat pump air conditioning thermal management method disclosed in any of the above claims.

[0069] Figure 6 is a structural diagram of an electronic device according to an embodiment of the present invention. As shown in Figure 6, the electronic device includes a processor, a memory, a communication interface, a display screen, and an input device connected via a system bus. The processor of the electronic device provides computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The communication interface of the electronic device is used for wired or wireless communication with external terminals. Wireless communication can be achieved through Wi-Fi, carrier networks, near-field communication (NFC), or other technologies. The display screen of the electronic device can be a liquid crystal display screen or an e-ink display screen. The input device of the electronic device can be a touch layer covering the display screen, or buttons, a trackball, or a touchpad provided on the casing of the electronic device, or an external keyboard, touchpad, or mouse, etc.

[0070] Those skilled in the art will understand that the structure shown in Figure 6 is merely a structural diagram of the part related to the technical solution of this disclosure, and does not constitute a limitation on the electronic device to which the solution of this application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0071] Example 4:

[0072] This invention discloses a storage medium, specifically a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the steps of a wide-temperature-range heat pump air conditioning thermal management method according to any one of the first aspects of this invention.

[0073] Please note that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The above embodiments only illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

[0074] The embodiments of the subject matter and functional operation described in this specification can be implemented in the following ways: digital electronic circuits, tangibly embodied computer software or firmware, computer hardware including the structures disclosed in this specification and their structural equivalents, or combinations thereof. Embodiments of the subject matter described in this specification can be implemented as one or more computer programs, i.e., one or more modules of computer program instructions encoded on a tangible, non-transitory program carrier for execution by a data processing apparatus or for controlling the operation of a data processing apparatus. Alternatively or additionally, the program instructions may be encoded on artificially generated propagation signals, such as machine-generated electrical, optical, or electromagnetic signals, which are generated to encode information and transmit it to a suitable receiving device for execution by the data processing apparatus. The computer storage medium may be a machine-readable storage device, a machine-readable storage substrate, a random or serial access memory device, or combinations thereof.

[0075] The processing and logic flow described in this specification can be executed by one or more programmable computers that execute one or more computer programs to perform corresponding functions by operating on input data and generating output. The processing and logic flow can also be executed by special-purpose logic circuitry—such as FPGAs (Field-Programmable Gate Arrays) or ASICs (Application-Specific Integrated Circuits), and the device can also be implemented as special-purpose logic circuitry.

[0076] Suitable computers for executing computer programs include, for example, general-purpose and / or special-purpose microprocessors, or any other type of central processing unit. Typically, the central processing unit receives instructions and data from read-only memory and / or random access memory. The basic components of a computer include a central processing unit for implementing or executing instructions and one or more memory devices for storing instructions and data. Typically, a computer will also include one or more mass storage devices for storing data, such as disks, magneto-optical disks, or optical disks, or the computer will be operatively coupled to such mass storage devices to receive data from or transfer data to them, or both. However, a computer is not required to have such devices. Furthermore, a computer can be embedded in another device, such as a mobile phone, a personal digital assistant (PDA), a mobile audio or video player, a game console, a global positioning system (GPS) receiver, or a portable storage device such as a universal serial bus (USB) flash drive, to name a few.

[0077] Computer-readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media, and memory devices, such as semiconductor memory devices (e.g., EPROM, EEPROM, and flash memory devices), magnetic disks (e.g., internal hard disks or removable disks), magneto-optical disks, and CD-ROM and DVD-ROM disks. Processors and memory may be supplemented by or incorporated into dedicated logic circuitry.

[0078] While this specification contains numerous specific implementation details, these should not be construed as limiting the scope of any invention or the scope of the claims, but rather are primarily used to describe features of specific embodiments of a particular invention. Certain features described in the various embodiments herein may also be implemented in combination in a single embodiment. Conversely, various features described in a single embodiment may also be implemented separately in various embodiments or in any suitable sub-combination. Furthermore, while features may function in certain combinations as described above and even initially claimed in this way, one or more features from a claimed combination may be removed from that combination in some cases, and a claimed combination may refer to a sub-combination or a variation thereof.

[0079] Similarly, although the operations are depicted in a specific order in the accompanying drawings, this should not be construed as requiring these operations to be performed in the specific order shown or sequentially, or requiring all illustrated operations to be performed to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Furthermore, the separation of various system modules and components in the above embodiments should not be construed as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.

[0080] Thus, specific embodiments of the subject matter have been described. Other embodiments are within the scope of the appended claims. In some cases, the actions recited in the claims may be performed in a different order and still achieve the desired result. Furthermore, the processes depicted in the drawings are not necessarily shown in a specific order or sequence to achieve the desired result. In some implementations, multitasking and parallel processing may be advantageous.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A wide-temperature-range heat pump air conditioning thermal management system, characterized in that, The system includes: a first condenser, a second condenser, an evaporator, a chiller, a power battery-driven liquid cooling circuit, a gas-liquid separator, multiple solenoid valves, and multiple electronic expansion valves. Specifically: the first end of the first condenser is connected to the first end of both the first and third solenoid valves; the second end of the first solenoid valve is connected to the first end of the fifth solenoid valve; the second end of the fifth solenoid valve is connected to the chiller; the first ends of the first and fourth solenoid valves are connected to the first end of the third solenoid valve; the second end of the first one-way valve is connected to the first end of the evaporator; and the second end of the fourth solenoid valve is connected to the second end of the fifth solenoid valve. The second end of the condenser is connected to the first end of both the first and second electronic expansion valves; the second end of the second one-way valve is connected to the chiller; the second end of the evaporator is connected to the first end of the second electronic expansion valve; the chiller is connected to the first end of the third electronic expansion valve; and the second ends of the first, second, and third electronic expansion valves are connected together. The chiller is connected to the power battery-driven liquid cooling circuit.

2. The wide temperature range heat pump air conditioning thermal management system according to claim 1, characterized in that, In refrigeration and battery cooling operation mode, the system includes: a first end of a first condenser connected to a first end of a first solenoid valve; a second end of the first solenoid valve connected to a first end of an EDC; a second end of the EDC connected to a first end of a gas-liquid separator; a second end of the gas-liquid separator connected to a first end of a first one-way valve; a second end of the first one-way valve connected to a first end of an evaporator; a second end of the evaporator connected to a first end of a second electronic expansion valve; a second end of the second electronic expansion valve connected to a first end of a second one-way valve; and a second end of the second one-way valve connected to a second end of the first condenser; a first end of a fourth solenoid valve connected to a first end of the first one-way valve; a second end of the fourth solenoid valve connected to a first end of a chiller; a second end of the chiller connected to a first end of a third electronic expansion valve; and a second end of the third electronic expansion valve connected to a second end of the second electronic expansion valve.

3. The wide temperature range heat pump air conditioning thermal management system according to claim 2, characterized in that, In the refrigeration and battery cooling operating mode, the system includes: a first end of the first condenser connected to a first end of a third solenoid valve; a first end of the third solenoid valve connected to a first end of a gas-liquid separator; a second end of the gas-liquid separator connected to a first end of a second solenoid valve; a second end of the second solenoid valve connected to a first end of the second condenser; a second end of the second condenser connected to a first end of a first electronic expansion valve; and a second end of the first electronic expansion valve connected to a second end of the first condenser. The first end of the second solenoid valve is also connected to a first end of a fifth solenoid valve; the second end of the fifth solenoid valve is connected to a first end of a chiller; and the second end of the chiller is connected to a first end of the first electronic expansion valve.

4. The wide temperature range heat pump air conditioning thermal management system according to claim 3, characterized in that, In heating, battery heating, and dehumidification modes, the system further includes: the first end of the first condenser is connected to the first end of the gas-liquid separator and the first end of the first one-way valve, the second end of the gas-liquid separator is connected to the first end of the second solenoid valve, the first end of the second solenoid valve is also connected to the first end of the fifth solenoid valve, the second end of the fifth solenoid valve is connected to the first end of the chiller, the second end of the chiller is connected to the first end of the first electronic expansion valve, and the second end of the first electronic expansion valve is connected to the second end of the first condenser; the second end of the first one-way valve is connected to the first end of the evaporator, the second end of the evaporator is connected to the first end of the second electronic expansion valve, and the second end of the second electronic expansion valve is connected to the first end of the first electronic expansion valve; the second end of the second solenoid valve is connected to the first end of the second condenser, and the second end of the second condenser is connected to the first end of the first electronic expansion valve.

5. The wide temperature range heat pump air conditioning thermal management system according to claim 1, characterized in that, In the heating, battery cooling, and dehumidification operating modes, the system further includes: the first end of the chiller is connected to the second end of the fourth solenoid valve; the first end of the fourth solenoid valve is connected to the first end of the first one-way valve; the second end of the first one-way valve is connected to the first end of the evaporator; the second end of the evaporator is connected to the first end of the second electronic expansion valve; the second end of the second electronic expansion valve is connected to the second end of the third electronic expansion valve; and the first end of the third electronic expansion valve is connected to the second end of the chiller. The first end of the fourth solenoid valve is connected to the first end of the gas-liquid separator; the second end of the gas-liquid separator is connected to the first end of the second solenoid valve; the second end of the second solenoid valve is connected to the first end of the second condenser; and the second end of the second condenser is connected to the second end of the second electronic expansion valve.

6. The wide temperature range heat pump air conditioning thermal management system according to claim 5, characterized in that, in, The second condenser is a built-in condenser.

7. A vehicle, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program that, when executed by the processor, performs a method in a wide-temperature-range heat pump air conditioning thermal management system as described in any one of claims 1 to 6.

8. A storage medium, characterized in that, The computer program stored in the storage medium can be executed by one or more processors and can be used to implement the method in a wide temperature range heat pump air conditioning thermal management system as described in any one of claims 1 to 6.

Images