Heat pump unit, intelligent cooling method and equipment and storage medium

Abstract

The embodiment of the invention discloses a heat pump unit, an intelligent cooling method and device and a storage medium. An auxiliary pipeline is arranged on the driving plate; an output port of the double-pipe heat exchanger is connected with a first input port of the filtering combiner; a second input port of the filtering combiner is connected with an input port of an auxiliary pipeline of the driving plate, a first port of the first electronic expansion valve and a first port of the second electronic expansion valve, and a first output port of the filtering combiner is connected with an input port of the fin type heat exchanger; a second output port of the filter combiner is connected with a first input port of the economizer; an output port of an auxiliary pipeline of the driving plate is connected with a second port of the first electronic expansion valve; a second port of the second electronic expansion valve is connected with a second input port of the economizer and a first port of the enthalpy-increasing electronic expansion valve; a second port of the enthalpy-increasing electronic expansion valve is connected with a first output port of the economizer; the problem of low operation reliability of the driving board can be solved, and the operation reliability of the driving board is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of heat pump control, and in particular to a heat pump unit, an intelligent cooling method, equipment and storage medium. Background Art

[0002] Air source heat pump units are widely used as a highly efficient heat energy conversion device. The driver board is a key component in the air source heat pump unit, responsible for controlling and regulating the operation of the heat pump unit. In a high temperature environment, the driver board is prone to heat up. If it is not cooled down in time, it will affect its working efficiency, and then affect the overall heat exchange efficiency of the heat pump unit. Therefore, during the operation of the heat pump unit, it is necessary to cool down the driver board in time to maintain its good working condition, thereby improving the heat exchange efficiency and ensuring that the unit can operate efficiently and stably.

[0003] In order to cool down the driver board in time, the existing air source heat pump units usually install the driver board in the main channel, downstream of the main electronic expansion valve, and cool down the driver board through heat exchange between the flowing refrigerant and the driver board. In this way, the refrigerant in the main channel is prone to fluctuate, so the refrigerant will impact the driver board with fluctuating temperatures, making the temperature of the driver board prone to fluctuate, resulting in low operating reliability of the driver board. Summary of the invention

[0004] The embodiments of the present application provide a heat pump unit, an intelligent cooling method, a device and a storage medium, which can solve the technical problem of low operating reliability of a drive board of the heat pump unit, control the temperature of the drive board within a reasonable range, and improve the operating reliability of the drive board.

[0005] In a first aspect, an embodiment of the present application provides a heat pump unit, comprising: a fin heat exchanger, a compressor, a four-way valve, a gas-liquid separator, a shell and tube heat exchanger, a filter combiner, a drive board, a first electronic expansion valve, a second electronic expansion valve, an economizer and an enthalpy-increasing electronic expansion valve, wherein an auxiliary pipeline is arranged on the drive board;

[0006] The exhaust port of the compressor is connected to the input port of the shell and tube heat exchanger, the input port of the gas-liquid separator and the output port of the fin heat exchanger through a four-way valve;

[0007] The output port of the shell and tube heat exchanger is connected to the first input port of the filter combiner;

[0008] The second input port of the filter combiner is connected to the input port of the auxiliary pipeline of the driving board, the first port of the first electronic expansion valve, and the first port of the second electronic expansion valve, the first output port of the filter combiner is connected to the input port of the fin heat exchanger, and the second output port of the filter combiner is connected to the first input port of the economizer;

[0009] The output port of the auxiliary pipeline of the driving board is connected to the second port of the first electronic expansion valve;

[0010] The second port of the second electronic expansion valve is connected to the second input port of the economizer and the first port of the enthalpy-increasing electronic expansion valve;

[0011] The second port of the enthalpy-increasing electronic expansion valve is connected to the first output port of the economizer;

[0012] The second output port of the economizer is connected to the enthalpy increase port of the compressor;

[0013] The output port of the gas-liquid separator is connected to the air intake port of the compressor.

[0014] In one embodiment, the filter assembly includes: a first filter, a first one-way valve, a second one-way valve, a third one-way valve, a fourth one-way valve, a first three-way valve, and a second three-way valve;

[0015] The input port of the first filter is connected to the output port of the shell and tube heat exchanger, and the output port of the first filter is connected to the output port of the first check valve and the input port of the second check valve;

[0016] The input port of the first one-way valve is connected to the first port of the first three-way valve;

[0017] The second port of the first three-way valve is connected to the input port of the auxiliary pipeline of the driving plate, and the second port of the first three-way valve is connected to the input port of the third one-way valve;

[0018] The output port of the second one-way valve is connected to the first port of the second three-way valve;

[0019] The second port of the second three-way valve is connected to the first input port of the economizer, and the third port of the second three-way valve is connected to the output port of the fourth one-way valve;

[0020] The output port of the third one-way valve and the input port of the fourth one-way valve are both connected to the input port of the fin heat exchanger.

[0021] In one embodiment, the heat pump unit further comprises: a second filter;

[0022] The input port of the second filter is connected to the output port of the third one-way valve and the input port of the fourth one-way valve, and the second filter is connected to the input port of the fin heat exchanger.

[0023] In one embodiment, the heat pump unit further comprises: a first temperature detection device;

[0024] The first temperature detection device is disposed on the driving board, and is used to detect the temperature of the driving board.

[0025] In one embodiment, the heat pump unit further comprises: a third three-way valve and a fourth three-way valve;

[0026] The first port of the third three-way valve is connected to the second port of the first three-way valve, the second port of the third three-way valve is connected to the first port of the first electronic expansion valve, and the third port of the third three-way valve is connected to the first port of the second electronic expansion valve;

[0027] The second port of the second electronic expansion valve is connected to the first port of the fourth three-way valve, the second port of the fourth three-way valve is connected to the second input port of the economizer, and the third port of the fourth three-way valve is connected to the first port of the enthalpy increasing electronic expansion valve.

[0028] In a second aspect, an embodiment of the present application provides an intelligent cooling method for the heat pump unit of the first aspect, the intelligent cooling method comprising:

[0029] Detect the temperature of the drive board of the heat pump unit;

[0030] When the temperature exceeds a preset threshold, controlling the first electronic expansion valve to open;

[0031] When the temperature is below a preset threshold, the first electronic expansion is controlled to be closed.

[0032] In one embodiment, when the temperature exceeds a preset threshold, controlling the first electronic expansion valve to open includes:

[0033] When the temperature is within a first threshold range, the first electronic expansion valve is controlled to open to a first opening degree, and the compressor is controlled to perform frequency increase processing at a first speed;

[0034] When the temperature is within the second threshold range, the first electronic expansion valve is controlled to open to a second opening degree, and the compressor is prohibited from performing frequency increase or decrease processing;

[0035] When the temperature is within a third threshold range, the first electronic expansion valve is controlled to open to a third opening degree, and the compressor is controlled to perform frequency reduction processing at a second speed;

[0036] Among them, the temperature value in the third threshold range is greater than the temperature value in the second threshold range, the temperature value in the second threshold range is greater than the temperature value in the first threshold range, the third opening degree is greater than the second opening degree, and the second opening degree is greater than the first opening degree.

[0037] In one embodiment, when the temperature is below a preset threshold, after controlling the first electronic expansion to be closed, the method includes:

[0038] According to the temperature, the opening degree of the second electronic expansion valve and the operating frequency of the compressor are regulated according to the preset control strategy.

[0039] In a third aspect, an embodiment of the present application provides an intelligent cooling device, including:

[0040] memory and one or more processors;

[0041] The memory is used to store one or more programs;

[0042] When the one or more programs are executed by the one or more processors, the one or more processors implement the intelligent cooling method as described in the second aspect.

[0043] In a fourth aspect, an embodiment of the present application provides a storage medium storing computer executable instructions, which, when executed by a computer processor, are used to execute the intelligent cooling method as described in the second aspect.

[0044] The embodiment of the present application achieves cooling of the driving board by setting an auxiliary pipeline on the driving board of the heat pump unit when the refrigerant flows through the auxiliary pipeline; and controls the amount of refrigerant in the auxiliary pipeline by a first electronic expansion valve, so as to avoid the problem of low operating reliability of the driving board caused by the impact of the refrigerant in the main channel on the driving board. The amount of refrigerant in the auxiliary pipeline is controlled by the opening of the first electronic expansion valve, so that the temperature of the driving board is controlled within a reasonable range, and the temperature of the driving board is prevented from being too high and affecting the operation, thereby improving the operating reliability of the driving board. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a structural schematic diagram of a heat pump unit provided in an embodiment of the present application;

[0046] Figure 2 This is a flow chart of an intelligent cooling method provided by an embodiment of the present application;

[0047] Figure 3 It is a structural schematic diagram of an intelligent cooling device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for the convenience of description, only the part related to the present application but not all the contents are shown in the accompanying drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow chart describes each operation (or step) as a sequential process, many of the operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of each operation can be rearranged. The process can be terminated when its operation is completed, but it can also have additional steps not included in the accompanying drawings. The process can correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.

[0049] In order to cool down the driver board in time, the existing air source heat pump units usually install the driver board in the main channel, downstream of the main electronic expansion valve, and cool down the driver board through heat exchange between the refrigerant in the main channel and the driver board. In this case, since the refrigerant is always flowing in the main channel, the driver board is always cooled regardless of whether the temperature of the driver board is too high, so that the temperature of the driver board remains low, and the temperature of the driver board cannot be controlled within a reasonable range. In addition, the refrigerant in the main channel is prone to fluctuate, so the refrigerant will impact the driver board with high and low temperatures, making the temperature of the driver board prone to fluctuate, resulting in low operating reliability of the driver board.

[0050] Based on this, a heat pump unit, an intelligent cooling method, an equipment and a storage medium are provided in the embodiments of the present application, aiming to achieve cooling of the driving board when the refrigerant flows through the auxiliary pipeline in the heat pump unit by arranging an auxiliary pipeline on the driving board; and controlling the amount of refrigerant in the auxiliary pipeline by a first electronic expansion valve. Compared with the existing method of cooling the driving board by the refrigerant in the main channel, the present embodiment can avoid the technical problem of low operating reliability of the driving board due to the fluctuating impact of the refrigerant in the main channel, and control the amount of refrigerant in the auxiliary pipeline by the opening of the first electronic expansion valve, so that the temperature of the driving board is controlled within a reasonable range, avoiding excessive temperature of the driving board and affecting the operation, thereby improving the operating reliability of the driving board.

[0051] Figure 1 is a schematic diagram of the structure of a heat pump unit provided in an embodiment of the present application, referring to Figure 1The heat pump unit includes: a fin heat exchanger 11, a compressor 12, a four-way valve 13, a gas-liquid separator 14, a shell and tube heat exchanger 15, a filter combiner 16, a drive plate 17, a first electronic expansion valve 18, a second electronic expansion valve 19, an economizer 20 and an enthalpy-increasing electronic expansion valve 21, and an auxiliary pipeline 171 is provided on the drive plate 17. The exhaust port of the compressor 12 is connected to the input port of the shell and tube heat exchanger 15, the input port of the gas-liquid separator 14 and the output port of the fin heat exchanger 11 through the four-way valve 13. The output port of the shell and tube heat exchanger 15 is connected to the first input port of the filter combiner 16. The second input port of the filter combiner 16 is connected to the input port of the auxiliary pipeline 171 of the driving plate 17, the first port of the first electronic expansion valve 18, and the first port of the second electronic expansion valve 19. The first output port of the filter combiner 16 is connected to the input port of the fin heat exchanger 11, and the second output port of the filter combiner 16 is connected to the first input port of the economizer 20. The output port of the auxiliary pipeline 171 of the driving plate 17 is connected to the second port of the first electronic expansion valve 18. The second port of the second electronic expansion valve 19 is connected to the second input port of the economizer 20 and the first port of the enthalpy-increasing electronic expansion valve 21. The second port of the enthalpy-increasing electronic expansion valve 21 is connected to the first output port of the economizer 20. The second output port of the economizer 20 is connected to the enthalpy-increasing port of the compressor 12. The output port of the gas-liquid separator 14 is connected to the air intake port of the compressor 12. As mentioned above, by arranging an auxiliary pipeline 171 on the driving plate 17 of the heat pump unit, when the refrigerant flows through the auxiliary pipeline 171, the driving plate 17 is cooled; and the refrigerant amount of the auxiliary pipeline 171 is controlled by the first electronic expansion valve 18, so as to avoid the impact of the refrigerant in the main channel on the driving plate 17 and the problem of low operating reliability of the driving plate 17. The refrigerant amount of the auxiliary pipeline 171 is controlled by the opening of the first electronic expansion valve 18, so that the temperature of the driving plate 17 is controlled within a reasonable range, and the temperature of the driving plate 17 is avoided. The operation is affected by the excessively high temperature of the driving plate 17, thereby improving the operating reliability of the driving plate 17.

[0052] The filter assembly 16 includes: a first filter 161, a first check valve 162, a second check valve 163, a third check valve 164, a fourth check valve 165, a first three-way valve 166, and a second three-way valve 167. The input port of the first filter 161 is connected to the output port of the shell and tube heat exchanger 15, and the output port of the first filter 161 is connected to the output port of the first check valve 162 and the input port of the second check valve 163. The input port of the first check valve 162 is connected to the first port of the first three-way valve 166. The second port of the first three-way valve 166 is connected to the input port of the auxiliary pipeline 171 of the driving plate 17, and the third port of the first three-way valve 166 is connected to the input port of the third check valve 164. The output port of the second check valve 163 is connected to the first port of the second three-way valve 167. The second port of the second three-way valve 167 is connected to the first input port of the economizer 20, and the third port of the second three-way valve 167 is connected to the output port of the fourth check valve 165. The output port of the third one-way valve 164 and the input port of the fourth one-way valve 165 are both connected to the input port of the fin heat exchanger 11. As described above, the refrigerant output by the shell and tube heat exchanger 15 is received through the filter combiner 16, and when the first electronic expansion valve 18 is opened, the refrigerant flowing through the auxiliary pipeline 171 of the drive plate 17 is received, so that the auxiliary channel of the drive plate 17 is cooled based on the passage of the refrigerant. One way out of the filter combiner 16 flows to the economizer 20 through the second three-way valve 167, and the economizer 20 outputs the first electronic expansion valve 18, so that when the first electronic expansion valve 18 is opened, the refrigerant can flow through the auxiliary pipeline 171 of the drive plate 17 to cool the drive plate 17. Another way out of the filter combiner 16 flows to the fin heat exchanger 11, realizing the refrigerant circulation of the main channel. The link of the auxiliary channel is connected through the filter combiner 16, providing a channel basis for cooling the drive board 17. Compared with the existing method of directly using the drive board 17 as a part of the main channel, the length of the main channel is shortened, thereby improving the energy efficiency ratio.

[0053] The heat pump unit further includes: a second filter 22. The input port of the second filter 22 is connected to the output port of the third one-way valve 164 and the input port of the fourth one-way valve 165, and the second filter 22 is connected to the input port of the fin heat exchanger 11. As described above, the refrigerant flowing back to the fin heat exchanger 11 is filtered by the first filter 161 and the second filter 22 to improve the cleanliness of the refrigerant, thereby improving the overall working energy efficiency of the heat pump unit.

[0054] The heat pump unit further includes: a first temperature detection device 172. The first temperature detection device 172 is disposed on the driving plate 17, and is used to detect the temperature of the driving plate 17. As described above, the temperature of the driving plate 17 is detected by the first temperature detection device 172, and when the temperature of the driving plate 17 exceeds a preset threshold, the first electronic expansion valve 18 is opened to allow the refrigerant to flow through the auxiliary pipeline 171 to cool the driving plate 17.

[0055] The heat pump unit further includes: a third three-way valve 23 and a fourth three-way valve 24. The first port of the third three-way valve 23 is connected to the second port of the first three-way valve 166, the second port of the third three-way valve 23 is connected to the first port of the first electronic expansion valve 18, and the third port of the third three-way valve 23 is connected to the first port of the second electronic expansion valve 19. The second port of the second electronic expansion valve 19 is connected to the first port of the fourth three-way valve 24, the second port of the fourth three-way valve 24 is connected to the second input port of the economizer 20, and the third port of the fourth three-way valve 24 is connected to the first port of the enthalpy-increasing electronic expansion valve 21.

[0056] Figure 2 A flow chart of an intelligent cooling method provided in an embodiment of the present application is given. The intelligent cooling method provided in this embodiment can be executed by an intelligent cooling device, which can be implemented by software and / or hardware. The intelligent cooling device can be composed of two or more physical entities, or can be composed of one physical entity. Generally speaking, the intelligent cooling device can be a heat pump unit device, such as a heat pump unit device such as an air conditioner or floor heating.

[0057] The following description is made by taking the air conditioner as the subject of the intelligent cooling method. Figure 1 The intelligent cooling method is used for the aforementioned heat pump unit, and the intelligent cooling method specifically includes:

[0058] S101, detecting the temperature of a driving board of the heat pump unit.

[0059] The temperature of the driving board is detected in real time by the first temperature detection device. When the temperature of the driving board is below the preset threshold, it means that the temperature of the driving board is appropriate and no cooling is required. When the temperature of the driving board exceeds the preset threshold, it means that the temperature of the driving board is too high. In order to avoid high temperature affecting the operating reliability of the driving board, the driving board needs to be cooled.

[0060] S102: When the temperature exceeds a preset threshold, control the first electronic expansion valve to open.

[0061] When the temperature of the driving board exceeds a preset threshold, it means that the temperature of the driving board is too high. In order to avoid the high temperature affecting the operating reliability of the driving board, the first electronic expansion valve is controlled to open so that the auxiliary pipe on the driving board can flow refrigerant. Based on the circulation of the refrigerant, the refrigerant in the auxiliary pipe exchanges heat with the driving board, thereby cooling the driving board, and finally reducing the temperature of the driving board to below the preset threshold, thereby improving the overall operating reliability of the driving board. Based on the improvement of the operating reliability of the driving board, the overall operating reliability of the heat pump unit is further improved.

[0062] When the temperature of the driving plate exceeds the preset threshold, the first electronic expansion valve is controlled to open to cool the driving plate. In order to avoid the impact of the refrigerant, multiple threshold ranges can be set, and the opening of the first electronic expansion valve can be controlled for different threshold ranges, so that the driving plate can be cooled at a certain speed to avoid cooling too fast at once, causing the driving plate to be hot and cold and affecting its operating stability. Exemplarily, when the temperature exceeds the preset threshold, the first threshold range, the second threshold range and the third threshold range are set. When the temperature is within the first threshold range, the first electronic expansion valve is controlled to open the first opening, and the compressor is controlled to perform frequency increase processing at the first speed. Exemplarily, assuming that the preset threshold is 87°C, the first threshold range is set to [88°C, 90°C), and the first opening is 30%. Therefore, when the temperature of the driving plate is within the range of [88°C, 90°C), the first electronic expansion valve is controlled to open 30% of the opening to cool the driving plate. Assuming that the first speed is 2 Hz / min, the compressor is controlled to perform a slow frequency increase at a speed of 2 Hz / min while the first electronic expansion valve is controlled to open at 30% to increase the cooling speed of the driving plate.

[0063] When the temperature is within the second threshold range, the first electronic expansion valve is controlled to open the second opening, and the compressor is prohibited from performing frequency increase or decrease processing. Exemplarily, assuming that the preset threshold is 87°C, the second threshold range is set to [90°C, 93°C), and the second opening is 50%-70%. Therefore, when the temperature of the drive plate is within the range of [90°C, 93°C), the first electronic expansion valve is controlled to open 50%-70% to cool the drive plate. At this time, based on the moderate opening of the first electronic expansion valve, in order to avoid too fast a cooling speed, the compressor is prohibited from performing frequency increase or decrease processing, thereby improving the stability of the cooling speed of the drive plate, and then improving the operating stability and reliability of the drive plate.

[0064] When the temperature is within the third threshold range, the first electronic expansion valve is controlled to open the third opening, and the compressor is controlled to perform frequency reduction processing at the second speed. Exemplarily, assuming that the preset threshold is 87°C, the third threshold range is set to [93°C, +∞), and the third opening is 100% opening. Therefore, when the temperature of the drive plate is within the range of [93°C, +∞), that is, the temperature of the drive plate reaches 93°C, the first electronic expansion valve is controlled to open 100% of the opening to cool the drive plate. At this time, based on the fact that the temperature is too high at this time, in order to avoid increasing the operating pressure of the drive plate, the operating frequency of the compressor can be appropriately reduced, and then the frequency can be increased after the temperature of the drive plate drops. Assuming that the third speed is 2Hz / min, while controlling the first electronic expansion valve to open 100% of the opening, the compressor is controlled to perform slow frequency reduction at a speed of 2Hz / min to reduce the operating pressure of the drive plate, avoid failures caused by high operating pressure under high temperature conditions, and thereby improve the operating stability and reliability of the drive plate.

[0065] Exemplarily, the temperature value in the third threshold range is greater than the temperature value in the second threshold range, the temperature value in the second threshold range is greater than the temperature value in the first threshold range, the third opening is greater than the second opening, and the second opening is greater than the first opening. The specific values ​​of the first threshold range, the second threshold range and the third threshold range can be set according to actual conditions. The specific values ​​of the first opening, the second opening and the third opening can be set according to actual conditions.

[0066] S103 , when the temperature is below a preset threshold, controlling the first electronic expansion to be closed.

[0067] When the temperature exceeds the preset threshold, the temperature of the driving board can be effectively reduced through the aforementioned S102 cooling process. When the temperature of the driving board drops below the preset threshold, it means that the temperature of the driving board is appropriate and no cooling is required, so the first electronic expansion valve is controlled to close.

[0068] After closing the first electronic expansion valve, that is, when the temperature of the driving plate is below the preset threshold, the opening of the second electronic expansion valve and the operating frequency of the compressor are regulated according to the temperature of the driving plate according to the preset control strategy, that is, the opening of the second electronic expansion valve in the main channel of the heat pump unit and the operating frequency of the compressor are regulated according to the preset control strategy to realize the cooling function or heating function of the heat pump unit.

[0069] As described above, by real-time detection of the temperature of the driving board, when the temperature of the driving board exceeds a preset threshold, the first electronic expansion valve is opened, so that the auxiliary pipeline corresponding to the driving board circulates the refrigerant, and the driving board is cooled based on heat exchange with the refrigerant in the auxiliary pipeline, thereby avoiding the driving board from being too hot and affecting the operation, thereby improving the operating reliability of the driving board. In addition, the opening of the first electronic expansion valve is regulated according to a preset threshold range, so that the driving board can be cooled at a certain speed, avoiding the temperature from being cooled too fast and affecting its operating stability, thereby further improving the operating reliability of the driving board; and the temperature rise and fall of the compressor are regulated according to a preset threshold range, so that when the temperature of the driving board is too high, the compressor is timely controlled to reduce the frequency, so as to reduce the operating pressure of the driving board, thereby further improving the operating stability and reliability of the driving board. Based on the improvement of the operating reliability of the driving board, the overall operating reliability of the heat pump unit is improved.

[0070] The present application embodiment provides an intelligent cooling device, referring to Figure 3The intelligent cooling device includes: a processor 31, a memory 32, a communication module 33, an input device 34 and an output device 35. The number of processors in the intelligent cooling device can be one or more, and the number of memories in the intelligent cooling device can be one or more. The processor, memory, communication module, input device and output device of the intelligent cooling device can be connected through a bus or other means.

[0071] The memory 32, as a computer-readable storage medium, can be used to store software programs, computer executable programs and modules, such as program instructions / modules corresponding to the intelligent cooling method described in any embodiment of the present application. The memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the device, etc. In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device or other non-volatile solid-state storage device. In some instances, the memory may further include a memory remotely arranged relative to the processor, and these remote memories may be connected to the device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network and a combination thereof.

[0072] The communication module 33 is used for data transmission.

[0073] The processor 31 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the memory, that is, realizes the above-mentioned intelligent cooling method.

[0074] The input device 34 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the device. The output device 35 may include a display device such as a display screen.

[0075] The intelligent cooling device provided above can be used to execute the intelligent cooling method provided in the above embodiment, and has corresponding functions and beneficial effects.

[0076] An embodiment of the present application also provides a storage medium storing computer executable instructions. When the computer executable instructions are executed by a computer processor, they are used to execute an intelligent cooling method. The intelligent cooling method includes: detecting the temperature of a driving board of a heat pump unit; when the temperature exceeds a preset threshold, controlling a first electronic expansion valve to open; when the temperature is below a preset threshold, controlling the first electronic expansion valve to close.

[0077] Storage medium - any of various types of memory devices or storage devices. The term "storage medium" is intended to include: installation media, such as CD-ROM, floppy disk or tape device; computer system memory or random access memory, such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc.; non-volatile memory, such as flash memory, magnetic media (such as hard disk or optical storage); registers or other similar types of memory elements, etc. Storage media may also include other types of memory or combinations thereof. In addition, the storage medium may be located in the first computer system in which the program is executed, or may be located in a different second computer system, which is connected to the first computer system via a network (such as the Internet). The second computer system can provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media residing in different locations (for example, in different computer systems connected by a network). The storage medium may store program instructions (for example, embodied as a computer program) that can be executed by one or more processors.

[0078] Of course, the computer executable instructions of a storage medium storing computer executable instructions provided in an embodiment of the present application are not limited to the intelligent cooling method described above, and can also execute related operations in the intelligent cooling method provided in any embodiment of the present application.

[0079] The intelligent cooling device, storage medium and intelligent cooling equipment provided in the above embodiments can execute the intelligent cooling method provided in any embodiment of the present application. For technical details not described in detail in the above embodiments, please refer to the intelligent cooling method provided in any embodiment of the present application.

[0080] The above are only preferred embodiments of the present application and the technical principles used. The present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not deviate from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A heat pump unit, characterized in that: include: A fin heat exchanger, a compressor, a four-way valve, a gas-liquid separator, a shell and tube heat exchanger, a filter combiner, a drive plate, a first electronic expansion valve, a second electronic expansion valve, an economizer and an enthalpy-increasing electronic expansion valve, wherein an auxiliary pipeline is arranged on the drive plate; The exhaust port of the compressor is connected to the input port of the shell and tube heat exchanger, the input port of the gas-liquid separator and the output port of the fin heat exchanger through the four-way valve; The output port of the shell and tube heat exchanger is connected to the first input port of the filter combiner; The second input port of the filter combiner is connected to the input port of the auxiliary pipeline of the driving plate, the first port of the first electronic expansion valve, and the first port of the second electronic expansion valve, the first output port of the filter combiner is connected to the input port of the fin heat exchanger, and the second output port of the filter combiner is connected to the first input port of the economizer; The output port of the auxiliary pipeline of the driving board is connected to the second port of the first electronic expansion valve; The second port of the second electronic expansion valve is connected to the second input port of the economizer and the first port of the enthalpy-increasing electronic expansion valve; The second port of the enthalpy-increasing electronic expansion valve is connected to the first output port of the economizer; The second output port of the economizer is connected to the enthalpy increase port of the compressor; The output port of the gas-liquid separator is connected to the air intake port of the compressor.

2. The heat pump unit according to claim 1, characterized in that: The filter assembly comprises: a first filter, a first one-way valve, a second one-way valve, a third one-way valve, a fourth one-way valve, a first three-way valve and a second three-way valve; The input port of the first filter is connected to the output port of the shell and tube heat exchanger, and the output port of the first filter is connected to the output port of the first one-way valve and the input port of the second one-way valve; The input port of the first one-way valve is connected to the first port of the first three-way valve; The second port of the first three-way valve is connected to the input port of the auxiliary pipeline of the driving plate, and the second port of the first three-way valve is connected to the input port of the third one-way valve; The output port of the second one-way valve is connected to the first port of the second three-way valve; The second port of the second three-way valve is connected to the first input port of the economizer, and the third port of the second three-way valve is connected to the output port of the fourth one-way valve; The output port of the third one-way valve and the input port of the fourth one-way valve are both connected to the input port of the fin heat exchanger.

3. The heat pump unit according to claim 2, characterized in that: The heat pump unit further comprises: a second filter; The input port of the second filter is connected to the output port of the third one-way valve and the input port of the fourth one-way valve, and the second filter is connected to the input port of the fin heat exchanger.

4. The heat pump unit according to any one of claims 1 to 3, characterized in that: The heat pump unit further comprises: a first temperature detection device; The first temperature detection device is disposed on the driving board, and is used to detect the temperature of the driving board.

5. The heat pump unit according to claim 4, characterized in that: The heat pump unit further comprises: a third three-way valve and a fourth three-way valve; The first port of the third three-way valve is connected to the second port of the first three-way valve, the second port of the third three-way valve is connected to the first port of the first electronic expansion valve, and the third port of the third three-way valve is connected to the first port of the second electronic expansion valve; The second port of the second electronic expansion valve is connected to the first port of the fourth three-way valve, the second port of the fourth three-way valve is connected to the second input port of the economizer, and the third port of the fourth three-way valve is connected to the first port of the enthalpy-increasing electronic expansion valve.

6. An intelligent cooling method, characterized in that: For the heat pump unit according to any one of claims 1 to 5, the method comprises: Detecting the temperature of the driving plate of the heat pump unit; When the temperature exceeds a preset threshold, controlling the first electronic expansion valve to open; When the temperature is below a preset threshold, the first electronic expansion is controlled to be closed.

7. The method according to claim 6, characterized in that When the temperature exceeds a preset threshold, controlling the first electronic expansion valve to open comprises: When the temperature is within a first threshold range, controlling the first electronic expansion valve to open to a first opening degree, and controlling the compressor to perform frequency increase processing at a first speed; When the temperature is within a second threshold range, controlling the first electronic expansion valve to open to a second opening degree, and prohibiting the compressor from performing frequency increase or decrease processing; When the temperature is within a third threshold range, controlling the first electronic expansion valve to open to a third opening degree, and controlling the compressor to perform frequency reduction processing at a second speed; Among them, the temperature value in the third threshold range is greater than the temperature value in the second threshold range, the temperature value in the second threshold range is greater than the temperature value in the first threshold range, the third opening degree is greater than the second opening degree, and the second opening degree is greater than the first opening degree.

8. The method according to claim 6, characterized in that When the temperature is below a preset threshold, after controlling the first electronic expansion to be closed, the method includes: According to the temperature, the opening degree of the second electronic expansion valve and the operating frequency of the compressor are regulated according to a preset control strategy.

9. An intelligent cooling device, characterized in that: include: memory and one or more processors; The memory is used to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 6 to 8.

10. A storage medium storing computer executable instructions, characterized in that: The computer executable instructions are used to perform the method according to any one of claims 6 to 8 when executed by a processor.

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