Energy storage heat pump air conditioning system and its control method, electronic equipment and storage medium

Abstract

This application relates to an energy storage heat pump air conditioning system and its control method, electronic equipment, and storage medium, comprising: a heat pump air conditioning system; an energy storage device connected to the heat pump air conditioning system, wherein when the actual load of the heat pump air conditioning system reaches a preset energy storage condition, coolant flows through the energy storage device to heat or cool the energy storage material in the energy storage device until the corresponding phase change temperature point is reached, thereby playing an energy storage role; when the electric vehicle is under preset extreme operating conditions, the energy storage device also uses coolant to provide the heat energy stored in the energy storage device to the vehicle's needs; a temperature sensor for collecting the actual temperature of the energy storage material; and a control switch for controlling the flow of coolant between the energy storage device and the heat pump air conditioning system, thereby not only reducing the fluctuation of the temperature level inside the vehicle and improving the user experience, but also reducing battery power consumption, lowering energy consumption, and extending the driving range.

Description

Technical Field

[0001] This application relates to the field of energy storage air conditioning system technology, and in particular to an energy storage heat pump air conditioning system and its control method, electronic equipment and storage medium. Background Technology

[0002] The thermal management system of new energy vehicles has an increasing demand for the heat exchange capacity of air conditioning. In addition to meeting the comfort requirements of the passenger cabin, it also needs to strictly control the temperature of the battery pack to ensure that the battery works within a safe and efficient temperature range. Furthermore, it needs to improve the energy efficiency ratio and reduce energy consumption.

[0003] However, heat pump air conditioning systems in new energy vehicles generally use electric compressors as the refrigeration unit, and their speed and displacement are limited by specifications. If the system is selected entirely based on the extreme load conditions of electric vehicles, it is easy to result in an oversized overall system with poor economic efficiency. Furthermore, the limited space in new energy vehicles means that an oversized system will cause more problems in component placement and installation, affecting the overall production quality and after-sales maintenance quality of the vehicle. In addition, heat pump air conditioning systems lose their heating function during defrosting, causing a drop in interior temperature and reducing passenger comfort, which urgently needs to be addressed. Summary of the Invention

[0004] This application provides an energy storage heat pump air conditioning system and its control method, electronic equipment and storage medium to solve the problems of ordinary electric vehicle heat pump air conditioning systems, which often have insufficient heat exchange capacity or lose heating function during defrosting, resulting in a drop in vehicle interior temperature and reduced passenger comfort.

[0005] The first aspect of this application provides an energy storage heat pump air conditioning system, comprising: a heat pump air conditioning system; an energy storage device connected to the heat pump air conditioning system, wherein when the actual load of the heat pump air conditioning system reaches a preset energy storage condition, coolant flows through the energy storage device to heat or cool the energy storage material in the energy storage device until the corresponding phase change temperature point is reached, thereby achieving energy storage; a temperature sensor for collecting the actual temperature of the energy storage material; and a control switch for opening the three-way solenoid valve passage between the energy storage device and the heat pump air conditioning system when the actual heat load of the heat pump air conditioning system reaches the preset energy storage condition, introducing coolant from the heat pump air conditioning system to heat or cool the energy storage material in the energy storage device, and entering a disconnected state when the actual temperature of the energy storage material reaches the energy storage temperature, closing the three-way solenoid valve passage, and stopping energy storage.

[0006] Optionally, in one embodiment of this application, the control switch is further configured to open the three-way solenoid valve when the electric vehicle is under preset extreme operating conditions, and the energy accumulator is connected to the cooling water circuit of the heat pump air conditioning system to provide the electric vehicle with the thermal energy stored in the energy accumulator.

[0007] Optionally, in one embodiment of this application, the energy storage device has a hot-end inlet pipe and a cold-end inlet pipe, wherein the hot-end inlet pipe is connected in parallel with the air conditioning and heating water circuit of the heat pump air conditioning system, and the cold-end inlet pipe is connected in parallel with the battery pack cooling water circuit.

[0008] Optionally, in one embodiment of this application, a porous plastic plate is installed inside the energy storage device to form a flow channel and a frame, wherein the frame is used to place the energy storage material.

[0009] Optionally, in one embodiment of this application, the energy storage material is encapsulated in polyethylene or a thermally conductive material.

[0010] A second aspect of this application provides a control method for an energy storage heat pump air conditioning system, comprising the following steps: detecting whether the actual load of the heat pump air conditioning system reaches the preset energy storage condition; when the actual load of the heat pump air conditioning system reaches the preset energy storage condition, the control switch opens the three-way solenoid valve, the energy accumulator is connected to the cooling water circuit of the heat pump air conditioning system, and the coolant flows through the energy accumulator to heat up or cool down the energy storage material of the energy accumulator until the corresponding phase change temperature point is reached, thereby achieving the energy storage function.

[0011] Optionally, in one embodiment of this application, the method further includes: detecting whether the electric vehicle is under the preset extreme operating condition; when the electric vehicle is under the preset extreme operating condition, the control switch opens the three-way solenoid valve, and the energy storage device is connected to the cooling water circuit of the heat pump air conditioning system to provide the electric vehicle with the thermal energy stored in the energy storage device.

[0012] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the control method of the energy storage heat pump air conditioning system as described in the above embodiments.

[0013] A fourth aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the control method of the energy storage heat pump air conditioning system described above.

[0014] Therefore, the embodiments of this application have the following beneficial effects:

[0015] The embodiments of this application utilize an energy accumulator connected to a heat pump air conditioning system. When the actual load of the heat pump air conditioning system reaches a preset energy storage condition, coolant flows through the energy accumulator to heat or cool the energy storage material until it reaches the corresponding phase change temperature point, thus achieving energy storage. A temperature sensor collects the actual temperature of the energy storage material, and a control switch disconnects the energy storage when the actual temperature reaches the energy storage temperature, stopping energy storage. In extreme conditions, the control switch is activated, connecting the energy accumulator to the heat pump air conditioning system to provide additional stored heat exchange in a timely manner. This not only minimizes fluctuations in the vehicle's interior temperature, improving the user experience, but also reduces battery power consumption, lowers energy consumption, and extends the driving range. Therefore, this solves the problems of related technologies where insufficient heat exchange design or loss of heating function during defrosting conditions leads to a drop in interior temperature and reduced passenger comfort.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by means of embodiments thereof. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0018] Figure 1 This is an example diagram of the control system of an energy storage heat pump air conditioning system according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of a heat pump system with an accumulator according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the appearance of an energy storage device according to an embodiment of this application;

[0021] Figure 4 This is a horizontal cross-sectional view of the interior of an energy storage device according to an embodiment of this application;

[0022] Figure 5 This is a flow chart of a thermal accumulator according to an embodiment of this application;

[0023] Figure 6 This is a flow chart of an energy storage heating process according to an embodiment of this application;

[0024] Figure 7 A schematic diagram of a heat storage / heat release principle of an energy accumulator according to an embodiment of this application;

[0025] Figure 8A flow chart of a cold storage process for an energy accumulator according to an embodiment of this application;

[0026] Figure 9 This is a flowchart illustrating a accumulator cooling process according to an embodiment of this application;

[0027] Figure 10 A schematic diagram of an energy storage / cooling principle provided according to an embodiment of this application;

[0028] Figure 11 This is a flowchart of a control method for an energy storage heat pump air conditioning system according to an embodiment of this application;

[0029] Figure 12 A schematic diagram of the structure of the electronic device provided in the application embodiment.

[0030] Among them, 10-control system of heat pump air conditioning system, 100-heat pump air conditioning system, 200-accumulator, 201-hot end outlet pipe, 202-hot end inlet pipe, 203-accumulator body, 204-cold end outlet pipe, 205-cold end inlet pipe, 206-one-way valve, 207-high temperature heat storage material, 208-porous longitudinal partition, 209-porous transverse partition, 210-shell insulation layer, 211-low temperature cold storage material, 212-flow guide partition, 300-temperature sensor, 400-control switch, 1201-memory, 1202-processor, 1203-communication interface. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0032] The following description, with reference to the accompanying drawings, describes a control system, method, electric vehicle, device, and medium for a heat pump air conditioning system according to embodiments of this application. Addressing the problems mentioned in the background section, this application provides an energy storage heat pump air conditioning system, comprising: a heat pump air conditioning system; an energy storage device connected to the heat pump air conditioning system, wherein when the actual load of the heat pump air conditioning system reaches a preset energy storage condition, coolant flows through the energy storage device to heat or cool the energy storage material until it reaches the corresponding phase change temperature point, thereby achieving energy storage; a temperature sensor for collecting the actual temperature of the energy storage material; and a control switch for opening a three-way solenoid valve passage between the energy storage device and the heat pump air conditioning system when the actual heat load of the heat pump air conditioning system reaches the preset energy storage condition, introducing coolant from the heat pump air conditioning system to heat or cool the energy storage material in the energy storage device, and entering a disconnected state when the actual temperature of the energy storage material reaches the energy storage temperature, closing the three-way solenoid valve passage, and stopping energy storage. This not only reduces fluctuations in the vehicle's interior temperature, improving the user experience, but also reduces battery power consumption, lowers energy consumption, and extends the driving range. This solves the problems that ordinary heat pump air conditioning systems often have insufficient heat exchange capacity or lose their heating function during defrosting, leading to a drop in vehicle interior temperature and reduced passenger comfort.

[0033] Specifically, Figure 1 This is a block diagram of an energy storage heat pump air conditioning system according to an embodiment of this application.

[0034] like Figure 1 As shown, the heat pump air conditioning system 10 of the electric vehicle includes: a heat pump air conditioning system 100, an energy storage device 200, a temperature sensor 300, and a control switch 400.

[0035] Among them, the heat pump air conditioning system is 100.

[0036] The energy storage device 200, which is connected to the heat pump air conditioning system, heats or cools the energy storage material of the energy storage device 200 by using coolant flowing through the energy storage device 200 when the actual load of the heat pump air conditioning system 100 reaches the preset energy storage conditions, until the corresponding phase change temperature point is reached, thereby playing the role of energy storage.

[0037] Temperature sensor 300 is used to collect the actual temperature of the energy storage material.

[0038] The control switch 400 is used to open the three-way solenoid valve passage of the accumulator and the heat pump air conditioning system when the actual heat load of the heat pump air conditioning system reaches the preset energy storage condition, so as to introduce the coolant of the heat pump air conditioning system to heat up or cool down the energy storage material of the accumulator. When the actual temperature of the energy storage material reaches the energy storage temperature, it enters the disconnect state, closes the three-way solenoid valve passage, and stops energy storage.

[0039] It should be noted that the aforementioned automotive heat pump air conditioning system is a typical thermal management system for electric vehicles. This system can provide corresponding cooling and heating capacity to meet the overall vehicle needs based on the heat load requirements of the passenger compartment, battery, and motor.

[0040] Those skilled in the art will understand that the embodiments of this application, by adding an energy storage device that can store cooling capacity (or heating capacity) to a normal heat pump air conditioning system, can not only meet the thermal management temperature requirements of new energy vehicles under normal operating conditions without increasing the design capacity of the air conditioning system, but also provide additional stored heat exchange in a timely manner in extreme operating conditions to meet the safe cooling requirements of the battery pack or the comfort requirements of the passenger cabin.

[0041] Optionally, in one embodiment of this application, the energy storage device has a hot-end inlet pipe and a cold-end inlet pipe, wherein the hot-end inlet pipe is connected in parallel with the air conditioning and heating water circuit of the heat pump air conditioning system, and the cold-end inlet pipe is connected in parallel with the battery pack cooling water circuit.

[0042] like Figure 2 As shown, in the embodiment of this application, an energy accumulator a is added to the electric vehicle heat pump air conditioning system. Its hot-end inlet pipe 4 and hot-end outlet pipe 1 are connected in parallel with the water circuit of the air conditioning and heating system. Its cold-end inlet pipe 6 and cold-end outlet pipe 5 are connected in parallel with the water circuit of the battery pack cooling system.

[0043] Electronic three-way water valves b and c are installed on the water inlets 4 and 6 to control the water flow into the accumulator. The water outlet tee between 1 and 5 can be directly connected, or a check valve can be added inside the outlet pipe to prevent energy loss from the accumulator into the water circuit.

[0044] It should be noted that the inlet and outlet of the accumulator at the hot and cold ends in the embodiments of this application can be adjusted according to the water system of different vehicle models, and no specific limitation is made here.

[0045] Therefore, the embodiments of this application provide reliable hardware support for subsequent operations such as cold storage and heat storage by adding an energy accumulator with a hot end inlet pipe and a cold end inlet pipe.

[0046] Optionally, in one embodiment of this application, a porous plastic plate is installed inside the energy storage device to form a flow channel and a frame, wherein the frame is used to place the energy storage material.

[0047] like Figure 3 As shown, the aforementioned accumulator mainly consists of the accumulator body 203 and four inlet / outlet pipes: hot-end outlet pipe 201, hot-end inlet pipe 202, cold-end outlet pipe 204, and cold-end inlet pipe 205. The accumulator body has a flow channel and frame formed by a porous plastic plate inside, with the energy storage material placed within the frame. This results in a relatively small increase in system cost and high economic efficiency.

[0048] Optionally, in one embodiment of this application, the energy storage material is encapsulated in polyethylene or a thermally conductive material.

[0049] It should be noted that the hot end of the aforementioned accumulator is filled with a high-temperature heat storage material, mainly 60# paraffin wax (mixed with graphite powder). The cold end is filled with a low-temperature cold storage material, mainly CMC (carboxymethyl cellulose sodium) based cold storage material (a commonly used ice pack cold storage material in food cold chain transportation).

[0050] In addition, energy storage materials can be encapsulated using conventional polyethylene or thermally conductive materials, such as... Figure 4 As shown, the internal structure of the accumulator in this embodiment mainly includes high-temperature heat storage material 207, porous longitudinal partition 208, porous transverse partition 209, outer shell insulation layer 210, low-temperature cold storage material 211, flow guiding partition 212, etc.

[0051] It should be noted that the shape and size of the accumulator in the embodiments of this application can be designed according to the actual energy storage requirements, and the pipeline and installation position can be flexibly selected according to the overall vehicle layout, without specific restrictions.

[0052] Therefore, the embodiments of this application, by directly selecting mature products as components, simplify the modification of the control strategy and reduce costs.

[0053] Optionally, in one embodiment of this application, the control switch is further configured to open the three-way solenoid valve when the electric vehicle is under a preset extreme operating condition, so that the accumulator is connected to the cooling water circuit of the heat pump air conditioning system to provide the electric vehicle with the thermal energy stored in the accumulator.

[0054] It should be noted that the embodiments of this application can be controlled by a switch, such as a three-way water valve, to enter a conducting state when the electric vehicle is in extreme conditions such as overcooling, so as to provide the electric vehicle with the thermal energy stored in the energy storage device.

[0055] Specifically, such as Figure 5 As shown, when the heat pump system of an electric vehicle circulates through the passenger compartment heating loop, if the system's heating capacity exceeds the load demand of the battery pack and passenger compartment, energy storage can be performed using an energy accumulator. The energy storage process is as follows:

[0056] (1) Electronic three-way water valve b opens ports 3 and 4 and closes port 2;

[0057] (2) The antifreeze heated by the water-cooled condenser flows into the accumulator through port 4 of accumulator a.

[0058] (3) After the heat storage material inside the accumulator is heated, it flows out from port 1 of accumulator a and returns to the crew cabin heating circulation water circuit.

[0059] like Figure 6 As shown, when the outdoor heat exchanger of the electric vehicle heat pump system is defrosting, or when there is a short-term heating demand in the passenger compartment, or when the system's heating capacity is less than the load demand of the battery pack and passenger compartment, the heat stored in the energy storage device can be released to provide auxiliary heating. The specific process is as follows:

[0060] (1) Electronic three-way water valve b opens ports 3 and 4 and closes port 2;

[0061] (2) After the coolant is heated by the heat storage material inside the accumulator, it flows out from port 1 of accumulator a to provide hot water to the crew cabin air conditioning heater for heating.

[0062] like Figure 7 As shown, when the accumulator's hot-end inlet pipe is connected to the system's hot water circuit, hot water flows into the accumulator from the inlet. Under the restriction of the flow guide baffle, the water flows evenly through the energy storage material inside the accumulator and flows back to the system's water circuit from the hot-end outlet. During this process, the energy storage material is heated. When the temperature inside the accumulator reaches the solid-liquid phase transition point of the energy storage material or the temperature point set by the accumulator, the hot-end inlet pipe is closed and connected to the system's hot water circuit, completing the heat storage process.

[0063] When the system needs the accumulator for heat release compensation, the accumulator's hot end inlet is connected to the system's hot water circuit. In this way, after the system's hot water flows into the accumulator, it is heated by the high-temperature heat storage material inside and then flows back into the system's hot water circuit, which can meet the system's heating and temperature rise requirements.

[0064] It should be noted that during this process, the opening percentage of ports 2 and 4 of the electronic three-way water valve can be controlled by the control switch to keep the inlet water temperature of the air conditioning heater within the range required for passenger cabin comfort.

[0065] Therefore, embodiments of this application can control the switch to enter the conduction state under extreme operating conditions, providing additional stored heat exchange in a timely manner to meet the safe cooling requirements of the battery pack or the comfort requirements of the passenger cabin.

[0066] like Figure 8 As shown, when the battery pack cooling loop of the electric vehicle heat pump system is circulating, if the system's cooling capacity exceeds the load requirements of the battery pack and passenger compartment, an energy storage cold storage process can be implemented. The specific process is as follows:

[0067] (1) Electronic three-way water valve c opens ports 7 and 9 and closes port 8;

[0068] (2) The antifreeze cooled by the plate heat exchanger flows into the accumulator through port 6 of accumulator a.

[0069] (3) After cooling the cold storage material inside the accumulator, it flows out from port 5 of accumulator a and returns to the battery pack cooling circulation water circuit.

[0070] like Figure 9 As shown, when the battery pack of an electric vehicle needs short-term cooling, or when high-power cooling is required during fast charging, and the system's cooling capacity is less than the load demand of the battery pack and passenger compartment, the accumulator can release the cold energy stored in it to provide auxiliary cooling. The specific process is as follows:

[0071] (1) Electronic three-way water valve c opens ports 7 and 9 and closes port 8;

[0072] (2) The coolant enters the accumulator from port 6, is cooled by the cold storage material, and flows out from port 5 of accumulator a back into the battery pack cooling circulation water circuit to cool the battery pack.

[0073] It should be noted that during this process, the inlet water temperature of the battery pack can be controlled within the required range by controlling the opening percentage of ports 7 and 8 of the electronic three-way water valve.

[0074] like Figure 10 As shown, when the accumulator's cold-end inlet pipe is connected to the system's cooling water circuit, cold water flows into the accumulator from the inlet. Under the restriction of the flow guide baffle, the water flows evenly through the energy storage material inside the accumulator and flows back to the system's cooling water circuit from the cold-end outlet. During this process, the energy storage material is cooled down. When the internal temperature of the accumulator reaches the liquid-solid phase change point of the energy storage material or the temperature point set by the accumulator, the cold-end inlet pipe is closed and connected to the system's cooling water circuit, completing the energy storage process.

[0075] When the system needs the accumulator for cooling compensation, the accumulator's cold end inlet is connected to the system's cooling water circuit. In this way, after the system's cooling water flows into the accumulator, it is cooled by the low-temperature cold storage material inside and then flows back into the system's cooling water circuit, which can meet the system's cooling and temperature reduction needs.

[0076] It is understood that the embodiments of this application use an energy storage device to match the electric vehicle heat pump air conditioning system. The energy storage device is used to make up for the short-term cooling demand of the battery pack and the short-term heating demand of the passenger compartment provided by the heat pump air conditioning during defrosting, so as to maintain small fluctuations in the temperature level inside the vehicle, high comfort in the driver's cabin, and improve customer satisfaction.

[0077] According to the energy storage heat pump air conditioning system proposed in this application, by adding an energy storage device, a corresponding temperature sensor, and a three-way water valve, when the heat load of the heat pump system is lower than the system's maximum capacity, the three-way water valve of the energy storage circuit is opened, allowing coolant to flow through the inside of the energy storage device. This heats or cools the energy storage material inside the energy storage device to its phase change temperature point, thus achieving energy storage. Once the energy storage material inside the energy storage device reaches the set energy storage temperature, the three-way water valve of the energy storage circuit is closed, and the heat pump air conditioning system performs vehicle thermal management according to the normal system circuit. When the battery pack has a short-term cooling capacity requirement or the system's cooling capacity requirement exceeds the maximum design capacity, or when the heat pump system is in defrosting mode, the energy storage circuit is opened, allowing the energy stored in the energy storage material to compensate for the insufficient heat exchange in the system. This ensures that the temperature requirements of the passenger compartment and the battery pack are met, achieving energy saving, environmental protection, safety protection, and passenger comfort requirements.

[0078] Next, with reference to the accompanying drawings, a control method for an energy storage heat pump air conditioning system according to an embodiment of this application is described.

[0079] Figure 11 This is a flowchart illustrating a control method for an energy storage heat pump air conditioning system provided in an embodiment of this application.

[0080] like Figure 11 As shown, the control method of this energy storage heat pump air conditioning system includes the following steps:

[0081] In step S1101, it is detected whether the actual load of the heat pump air conditioning system has reached the preset energy storage condition.

[0082] In step S1102, when the actual load of the heat pump air conditioning system reaches the preset energy storage condition, the control switch opens the three-way solenoid valve, and the energy accumulator is connected to the cooling water circuit of the heat pump air conditioning system. The coolant flows through the energy accumulator to heat up or cool down the energy storage material in the energy accumulator until the corresponding phase change temperature point is reached, thereby playing the role of energy storage.

[0083] Optionally, in one embodiment of this application, the method further includes: detecting whether the electric vehicle is under a preset extreme operating condition; when the electric vehicle is under the preset extreme operating condition, the control switch opens the three-way solenoid valve, and the accumulator is connected to the cooling water circuit of the heat pump air conditioning system to provide the electric vehicle with the thermal energy stored in the accumulator.

[0084] It should be noted that the foregoing explanation of the embodiment of the energy storage heat pump air conditioning system also applies to the control method of the energy storage heat pump air conditioning system in this embodiment, and will not be repeated here.

[0085] According to the control method of the energy storage heat pump air conditioning system proposed in the embodiments of this application, when the actual load of the heat pump air conditioning system reaches the preset energy storage conditions, the energy storage material in the energy storage device is heated or cooled by the flow of coolant through the energy storage device until the corresponding phase change temperature point is reached, thereby playing the role of energy storage. Then, the actual temperature of the energy storage material is collected by the temperature sensor, and then the control switch enters the disconnect state when the actual temperature reaches the energy storage temperature, thereby stopping energy storage. This not only makes the temperature fluctuation inside the vehicle small, improving the user experience, but also reduces the consumption of battery power, reduces energy consumption, and extends the driving range.

[0086] Figure 12 A schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device may include:

[0087] The memory 1201, the processor 1202, and the computer program stored on the memory 1201 and executable on the processor 1202.

[0088] When the processor 1202 executes the program, it implements the control method of the energy storage heat pump air conditioning system provided in the above embodiments.

[0089] Furthermore, electronic devices also include:

[0090] Communication interface 1203 is used for communication between memory 1201 and processor 1202.

[0091] The memory 1201 is used to store computer programs that can run on the processor 1202.

[0092] The memory 1201 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0093] If the memory 1201, processor 1202, and communication interface 1203 are implemented independently, then the communication interface 1203, memory 1201, and processor 1202 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be divided into address buses, data buses, control buses, etc. For ease of representation, Figure 12 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0094] Optionally, in a specific implementation, if the memory 1201, processor 1202, and communication interface 1203 are integrated on a single chip, then the memory 1201, processor 1202, and communication interface 1203 can communicate with each other through an internal interface.

[0095] The processor 1202 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0096] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the control method of the energy storage heat pump air conditioning system described above.

[0097] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0098] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0099] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0100] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0101] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0102] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0103] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0104] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. An accumulator-type heat pump air conditioning system, characterized by, The application relates to a heat pump air conditioning system, an accumulator connected with the heat pump air conditioning system, a temperature sensor and a control switch. The accumulator has a hot end inlet pipe and a cold end inlet pipe, wherein the hot end inlet pipe is connected with a system hot water circuit of the heat pump air conditioning system in parallel, the cold end inlet pipe is connected with a battery pack cooling water circuit in parallel, a three-way electromagnetic valve is arranged on a water circuit connected with the hot end inlet pipe and the cold end inlet pipe, the three-way electromagnetic valve is used for controlling water flow into the accumulator, a hot end outlet pipe and a cold end outlet pipe are connected with a water circuit three-way joint, when actual load of the heat pump air conditioning system reaches preset energy storage conditions, cooling liquid flows through the accumulator to heat or cool energy storage materials of the accumulator until corresponding phase change temperature points or preset temperature points of the accumulator are reached, and the accumulator has an energy storage function; the temperature sensor is used for collecting actual temperature of the energy storage materials; and the control switch is used for opening a three-way electromagnetic valve channel of the accumulator and the heat pump air conditioning system when actual heat load of the heat pump air conditioning system reaches the preset energy storage conditions, introducing cooling liquid of the heat pump air conditioning system to heat or cool the energy storage materials of the accumulator, entering a disconnected state when actual temperature of the energy storage materials reaches energy storage temperature, closing the three-way electromagnetic valve channel and stopping energy storage. The control switch is also used for opening the three-way electromagnetic valve corresponding to the system hot water circuit when an electric vehicle is in preset extreme working conditions, connecting the accumulator with the system hot water circuit of the heat pump air conditioning system, releasing heat stored in the accumulator, performing accumulator auxiliary heating operation and providing the electric vehicle with heat energy stored in the accumulator, wherein the extreme working conditions are any one of the following conditions: the heat pump air conditioning system of the electric vehicle is in an outdoor heat exchanger defrosting working condition, a passenger cabin short-time heating demand working condition or a system heating capacity is less than load demand of the battery pack and the passenger cabin. When the heat pump air conditioning system is in a passenger cabin heating loop cycle and heating capacity of the heat pump air conditioning system is greater than load demand of the battery pack and the passenger cabin, the accumulator is used for heat storage. When the heat pump air conditioning system needs the accumulator to perform heat release compensation, the accumulator hot end inlet is connected with the system hot water circuit, so that water in the system hot water circuit is heated by high-temperature heat storage materials in the accumulator, and then the water flows back to the system hot water circuit, thereby completing heating operation of the heat pump air conditioning system. When the heat pump air conditioning system is in a battery pack cooling loop cycle and refrigerating capacity of the heat pump air conditioning system is greater than load demand of the battery pack and the passenger cabin, the accumulator is used for cold storage. The accumulator is connected with the system hot water circuit when the hot end inlet pipe is connected with the system hot water circuit, water flows into the accumulator from the inlet, under the restriction of a flow guide partition plate, the water uniformly flows through the energy storage materials in the accumulator, and then flows back to the system hot water circuit, so that the energy storage materials are heated and warmed up; when temperature in the accumulator reaches the solid-liquid phase change point of the energy storage materials or a preset temperature point of the accumulator, the hot end inlet pipe is disconnected with the system hot water circuit, and the heat storage process is completed. When the heat pump air conditioning system needs the accumulator to perform heat release compensation, the accumulator hot end inlet is connected with the system hot water circuit, so that water in the system hot water circuit is heated by high-temperature heat storage materials in the accumulator, and then the water flows back to the system hot water circuit, thereby completing heating operation of the heat pump air conditioning system. When the heat pump air conditioning system is in a battery pack cooling loop cycle and refrigerating capacity of the heat pump air conditioning system is greater than load demand of the battery pack and the passenger cabin, the accumulator is used for cold storage. ​ When the battery pack of the heat pump air conditioning system needs short-time cooling, or when the fast charging condition needs high-power cooling, and the refrigerating capacity of the heat pump air conditioning system is less than the load demand of the battery pack and the passenger cabin, the cold energy stored in the accumulator is released to perform the accumulator-assisted cooling operation; When the cold end inlet pipe of the accumulator is connected to the battery pack cooling water circuit, cold water flows into the accumulator from the inlet, and under the limiting action of the flow guide partition plate, the water flow uniformly flows through the accumulator internal energy storage material, and flows back to the battery pack cooling water circuit from the cold end water outlet, so that the energy storage material is cooled and cooled; when the internal temperature of the accumulator reaches the liquid-solid phase change point of the cold storage material or the set temperature point of the accumulator, the cold end inlet pipe is closed and connected to the battery pack cooling water circuit, and the cold storage process is completed; When the heat pump air conditioning system needs the accumulator to perform cooling compensation, the cold end inlet of the accumulator is connected to the battery pack cooling water circuit, so that the system cooling water flows into the internal accumulator, is cooled by the low-temperature cold storage material, and then flows back to the battery pack cooling water circuit, to complete the refrigeration and cooling operation of the heat pump air conditioning system; The accumulator is internally provided with a porous plastic plate to form a flow channel and a frame, wherein the frame is used to place the energy storage material; The energy storage material is wrapped by a heat-conducting material.

2. A control method of an energy storage type heat pump air conditioning system, characterized by, The energy storage heat pump air conditioning system of claim 1 is used, and the method comprises the following steps: Detecting whether the actual load of the heat pump air conditioning system reaches the preset energy storage condition; When the actual load of the heat pump air conditioning system reaches the preset energy storage condition, the control switch opens the three-way electromagnetic valve, the accumulator is connected to the system hot water circuit or the battery pack cooling water circuit of the heat pump air conditioning system, the cooling liquid flows through the accumulator, the energy storage material of the accumulator is heated or cooled until the corresponding phase change temperature point or the set temperature point of the accumulator is reached, and the energy storage effect is achieved; The control method of the energy storage heat pump air conditioning system further comprises: Detecting whether the electric vehicle is in the preset extreme condition, wherein the extreme condition is any one of the following conditions: the heat exchanger defrosting condition of the energy storage heat pump air conditioning system, the short-time heating demand condition of the passenger cabin, or the system heating capacity being less than the load demand of the battery pack and the passenger cabin; When the electric vehicle is in the preset extreme condition, the control switch opens the three-way electromagnetic valve corresponding to the system hot water circuit, the accumulator is connected to the system hot water circuit of the heat pump air conditioning system, and the accumulator stored heat energy is provided for the electric vehicle.

3. An electronic device, comprising: Comprise: A memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the control method of the energy storage heat pump air conditioning system of claim 2.

4. A computer-readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the control method of the energy storage heat pump air conditioning system of claim 2.

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