Air conditioner operation control method and device and air conditioner

CN116892766BActive Publication Date: 2026-08-11QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-27
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0005]本申请提供一种空调运行控制方法、装置、空调及计算机可读的存储介质,用以至少解决现有技术中因在PFC模块关闭时空调系统的运行压力过大而导致空调停机的缺陷

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Abstract

This application discloses an air conditioning operation control method, device, and air conditioner, relating to the field of air conditioning control technology. The air conditioning operation control method includes: acquiring the operating status of the air conditioner's PFC module; the operating status being either an on or off state; when the operating status is on, sending a first pipeline control signal to allow refrigerant fluid to flow from the air conditioner's compressor through a first refrigerant pipeline to the air conditioner's radiator; and when the operating status is off, sending a second pipeline control signal to allow refrigerant fluid to flow from the compressor through a second or first refrigerant pipeline to the radiator. Therefore, by setting multiple switchable refrigerant pipelines, when the PFC module is detected to be off, switching to a refrigerant pipeline with a larger refrigerant contact area optimizes the workload of the air conditioning system and effectively reduces the probability of air conditioner shutdown failure.
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Description

Technical Field

[0001] This application relates to the field of air conditioning control technology, and in particular to an air conditioning operation control method, device, air conditioner, and computer-readable storage medium. Background Technology

[0002] Household inverter air conditioners use PFC (Power Factor Correction) circuits to suppress power supply harmonics and improve the power factor of the air conditioner, thereby reducing harmonic interference from the air conditioner's electrical control to the external power grid.

[0003] Whether the PFC module is activated depends primarily on the operating parameters at the moment the air conditioner is turned on. After the air conditioner is turned on, the PFC module will remain in its original state until the air conditioner is turned on again. However, when the PFC module is in the off state, the air conditioning system experiences greater operating pressure, especially under harsh conditions, which may cause the air conditioner to shut down for protection, rendering the air conditioner unusable.

[0004] Currently, the industry has not proposed a better technical solution to the above problems. Summary of the Invention

[0005] This application provides an air conditioning operation control method, device, air conditioner, and computer-readable storage medium to at least solve the defect in the prior art that the air conditioner shuts down due to excessive operating pressure of the air conditioning system when the PFC module is turned off.

[0006] This application provides an air conditioner operation control method, the method comprising: acquiring the operating status of the PFC module of the air conditioner; the operating status being either a start-up state or a stop-down state; when the operating status is a start-up state, sending a first pipeline control signal to allow refrigerant fluid to flow from the compressor of the air conditioner through a first refrigerant pipeline to the radiator of the air conditioner; and when the operating status is a stop-down state, sending a second pipeline control signal to allow refrigerant fluid to flow from the compressor through a second refrigerant pipeline or the first refrigerant pipeline to the radiator; wherein the first refrigerant contact area between the first refrigerant pipeline and the radiator is smaller than the second refrigerant contact area between the second refrigerant pipeline and the radiator.

[0007] According to an air conditioning operation control method provided in this application, when the working state is the off state, the method further includes: when the air conditioning working mode is determined to be the cooling mode, comparing the outdoor ambient temperature of the air conditioning with a preset temperature threshold; the outdoor ambient temperature is the temperature of the environment where the outdoor unit of the air conditioning is located; when the outdoor ambient temperature is determined to be greater than the temperature threshold, sending a second pipeline control signal, so that the refrigerant fluid is connected to the radiator through the second refrigerant pipeline.

[0008] According to an air conditioning operation control method provided in this application, when it is determined that the outdoor ambient temperature does not exceed the temperature threshold, the method further includes: comparing the power supply voltage of the air conditioner with a preset voltage threshold; when the voltage threshold is greater than the voltage threshold, sending a first pipeline control signal to connect the refrigerant fluid to the radiator through the first refrigerant pipeline; and when the voltage threshold does not exceed the voltage threshold, sending a second pipeline control signal to connect the refrigerant fluid to the radiator through the second refrigerant pipeline.

[0009] According to the air conditioning operation control method provided in this application, when the working state is the off state, the method further includes: when it is determined that the air conditioning working mode is the heating mode, sending a second pipeline control signal so that the refrigerant fluid is connected to the radiator through the second refrigerant pipeline.

[0010] According to an air conditioning operation control method provided in this application, the air conditioner includes a reversing valve, a main refrigerant pipeline connecting the radiator and the compressor, and at least one bypass branch connected in parallel with the main refrigerant pipeline. The reversing valve is used to control the refrigerant fluid in the pipeline to flow in a first fluid direction or a second fluid direction. Each bypass branch is provided with a one-way valve that corresponds to opening the first fluid direction and blocking the second fluid direction. Sending a first pipeline control signal to connect the refrigerant fluid from the compressor to the radiator via the first refrigerant pipeline includes: sending a first pipeline control signal to connect the refrigerant fluid from the compressor of the air conditioner to the radiator via the main refrigerant pipeline.

[0011] According to an air conditioning operation control method provided in this application, the step of sending a second pipeline control signal to connect refrigerant fluid from the compressor to the radiator via the second refrigerant pipeline includes: sending a second pipeline control signal to connect refrigerant fluid from the compressor of the air conditioner to the radiator via the main refrigerant pipeline and each of the bypass branches.

[0012] According to the air conditioning operation control method provided in this application, obtaining the working status of the air conditioning PFC module includes: in response to the air conditioning start command, obtaining the working status of the air conditioning PFC module.

[0013] This application also provides an air conditioner operation control device, the device comprising: an acquisition unit for acquiring the operating status of the PFC module of the air conditioner; the operating status being either an on state or an off state; a first control unit for sending a first pipeline control signal when the operating status is on state, causing refrigerant fluid to flow from the compressor of the air conditioner through a first refrigerant pipeline to the radiator of the air conditioner; and a second control unit for sending a second pipeline control signal when the operating status is off state, causing refrigerant fluid to flow from the compressor through a second refrigerant pipeline or the first refrigerant pipeline to the radiator; wherein the first refrigerant contact area between the first refrigerant pipeline and the radiator is smaller than the second refrigerant contact area between the second refrigerant pipeline and the radiator.

[0014] This application also provides an air conditioner, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute any of the above-described air conditioner operation control methods through the computer program.

[0015] This application also provides a computer-readable storage medium comprising a stored program, wherein the program, when executed, implements any of the above-described air conditioning operation control methods.

[0016] This application also provides a computer program product, including a computer program that, when executed by a processor, implements any of the above-described air conditioning operation control methods.

[0017] The air conditioning operation control method, device, air conditioner, and computer-readable storage medium provided in this application detect the operating status of the air conditioner's PFC module. When the PFC module is in the activated state, it controls the refrigerant to flow from the compressor to the radiator via a first refrigerant pipe with a smaller refrigerant contact area. When the PFC module is in the deactivated state, it controls the refrigerant to flow from the compressor to the radiator via a second refrigerant pipe with a larger refrigerant contact area. Therefore, by providing multiple switchable refrigerant pipes, when the PFC module is detected to be in the deactivated state, switching to a refrigerant pipe with a larger refrigerant contact area increases the refrigerant contact area of ​​the heat exchanger under low-pressure, frequency-limited operation, optimizing the workload of the compressor system, effectively reducing the probability of air conditioner shutdown, and also improving air conditioning performance to a certain extent. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the hardware environment for an air conditioning operation control method according to an embodiment of this application;

[0021] Figure 2 A schematic diagram of the structure of an example air conditioner suitable for applying the air conditioner operation control method of the embodiments of this application is shown;

[0022] Figure 3 A flowchart of an example of an air conditioning operation control method according to an embodiment of this application is shown;

[0023] Figure 4 A schematic diagram of the structure of a first refrigerant pipeline and a second refrigerant pipeline for switching according to an embodiment of this application is shown;

[0024] Figure 5 A schematic diagram of the refrigerant circuit of an outdoor unit of an air conditioner according to an embodiment of this application is shown;

[0025] Figure 6 A flowchart of an example of an air conditioning operation control method according to an embodiment of this application is shown;

[0026] Figure 7 A structural block diagram of an example air conditioning operation control device according to an embodiment of this application is shown;

[0027] Figure 8 This is a structural schematic diagram of the air conditioner provided in this application. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] According to one aspect of the embodiments of this application, an air conditioning operation control method is provided. This air conditioning operation control method is widely used in whole-house intelligent digital control application scenarios such as smart homes, smart home ecosystems, and intelligence house ecosystems. Optionally, in this embodiment, the above-mentioned air conditioning operation control method can be applied to, for example... Figure 1 The hardware environment shown consists of terminal device 102 (e.g., air conditioner) and server 104. Figure 1 As shown, server 104 is connected to terminal device 102 via a network and can be used to provide services (such as application services) to the terminal or clients installed on the terminal. A database can be set up on the server or independently of the server to provide data storage services for server 104. Cloud computing and / or edge computing services can be configured on the server or independently of the server to provide data processing services for server 104.

[0031] The aforementioned networks may include, but are not limited to, at least one of the following: wired network, wireless network. The aforementioned wired network may include, but is not limited to, at least one of the following: wide area network, metropolitan area network, local area network. The aforementioned wireless network may include, but is not limited to, at least one of the following: Wi-Fi (Wireless Fidelity), Bluetooth.

[0032] Figure 2 A schematic diagram of an example air conditioning refrigerant circuit suitable for applying the air conditioning operation control method of the embodiments of this application is shown.

[0033] like Figure 2As shown, the air conditioner includes a radiator 210, a first refrigerant line 221, a second refrigerant line 223, a compressor 230, and a valve 240. The valve 240 controls the refrigerant fluid to switch between the first refrigerant line 221 and the second refrigerant line 223. The refrigerant fluid enters the radiator 210 from the compressor 230 through the first refrigerant line 221 or the second refrigerant line 223 for heat exchange.

[0034] Figure 3 A flowchart illustrating an example of an air conditioning operation control method according to an embodiment of this application is shown. The implementing entity of the method in this application embodiment can be various processors or controllers with processing or computing capabilities, and can be located in the air conditioning terminal, such as the outdoor unit. Through local data processing, and also by integrating data communication with a server, it achieves the optimization of the air conditioning system's operating pressure by regulating the refrigerant pipeline when the air conditioning PFC module is detected to be off, thereby reducing the probability of air conditioner shutdown failure.

[0035] like Figure 3 As shown, in step S310, the working status of the PFC module of the air conditioner is obtained, which is either the start state or the off state.

[0036] In one example of this application's embodiments, the air conditioner can monitor the PFC module's operating status in real time during operation. In another example of this application's embodiments, since the PFC module generally remains in its original state after power-on, it is only necessary to detect the PFC module's operating status when the air conditioner is turned on. Specifically, in response to the air conditioner's start command, the operating status of the air conditioner's PFC module is obtained, so that the PFC module's operating status is only detected when the air conditioner is turned on, to identify whether the PFC module is in a start-up or shutdown state, which can also reduce the consumption of processing resources of the air conditioning system to a certain extent.

[0037] In step S320, when the working state is the start state, a first pipeline control signal is sent, so that the refrigerant fluid flows from the air conditioner compressor through the first refrigerant pipeline to the air conditioner radiator.

[0038] In step S330, when the working state is the off state, a second pipeline control signal is sent, so that the refrigerant fluid flows from the compressor to the radiator through the second refrigerant pipeline or the first refrigerant pipeline, and the first refrigerant contact area between the first refrigerant pipeline and the radiator is smaller than the second refrigerant contact area between the second refrigerant pipeline and the radiator.

[0039] Combination Figure 2 In the example, a valve control signal is generated for valve 240 to achieve a switch from the first refrigerant line 221 to the second refrigerant line 223.

[0040] Through the embodiments of this application, when the PFC module is detected to be in a closed state, a refrigerant pipeline with a larger refrigerant contact area can be switched to use, which can effectively reduce the workload of the compressor system and reduce the probability of air conditioning shutdown failure.

[0041] Figure 4 A schematic diagram of the structure of a first refrigerant line and a second refrigerant line for switching according to an embodiment of this application is shown.

[0042] like Figure 4 As shown, the refrigerant circuit of the air conditioner includes a main refrigerant line 410 connecting the radiator and the compressor, and bypass branches 420 and 430 connected in parallel with the main refrigerant line 410. The main refrigerant line 410 and the bypass branches 420 and 430 are used to connect the radiator and the compressor, respectively. A reversing valve 440 (e.g., a drain valve can be used) is used to control the flow of refrigerant fluid in the line in either a first fluid direction or a second fluid direction. Each bypass branch 420 and 430 is also equipped with a corresponding one-way valve 421 and 431 to guide the flow in the first fluid direction (e.g., a drain valve can be used). Figure 4 (in the direction of the arrow) and cut off the second fluid direction (e.g., corresponding to the direction of the arrow). Figure 4 (The opposite direction of the middle arrow).

[0043] Specifically, when the PFC module is detected to be in the ON state and a first refrigerant line with a smaller refrigerant contact area is needed, the reversing valve 440 controls the refrigerant fluid to flow in the second fluid direction. This ensures that the refrigerant fluid can only flow from the air conditioner compressor through the main refrigerant line 410 to the radiator, and cannot flow through the bypass branches 420 and 430, which are in the OFF state. Furthermore, when the PFC module is detected to be in the OFF state and a second refrigerant line with a larger refrigerant contact area is needed, the reversing valve 440 controls the refrigerant fluid to flow in the first fluid direction. This ensures that the refrigerant fluid flows from the air conditioner compressor through the main refrigerant line and each bypass branch to the radiator, thereby increasing the contact area between the refrigerant and the heat exchanger when the PFC module is in the OFF state.

[0044] Figure 5 A schematic diagram of the refrigerant circuit of an outdoor unit of an air conditioner according to an embodiment of this application is shown.

[0045] like Figure 5 As shown, the refrigerant circuit of the outdoor unit of the air conditioner includes a main refrigerant pipe 510, a drain valve (not shown) for controlling the direction of refrigerant flow, and at least one bypass branch 520. The bypass branch 520 is provided with a function to guide a specific fluid direction (such as...). Figure 5 The refrigerant unidirectional valve (arrow direction in the image) indicates the direction of the refrigerant flow.

[0046] In some implementations, when the PFC module of the air conditioner is detected to be in the start-up state, the refrigerant is allowed to flow out from interface 511 through the control of the drain valve, and exchange heat with the radiator through the main refrigerant line 510. Conversely, when the PFC module of the air conditioner is detected to be in the off state, the refrigerant is allowed to flow out from interface 513 through the control of the drain valve, and exchange heat with the radiator through the main refrigerant line 510 and the bypass branch 520.

[0047] Figure 6 A flowchart illustrating an example of an air conditioning operation control method according to an embodiment of this application is shown.

[0048] like Figure 6 As shown, in step S610, if it is determined that the PFC module of the air conditioner is in the off state, the air conditioner's operating mode is detected as either cooling mode or heating mode.

[0049] In step S620, when the air conditioner is determined to be in cooling mode, the outdoor ambient temperature of the air conditioner is compared with a preset temperature threshold.

[0050] In step S630, when it is determined that the outdoor ambient temperature is greater than the temperature threshold, a second pipeline control signal is sent, so that the refrigerant fluid is connected to the radiator through the second refrigerant pipeline.

[0051] It should be noted that when the outdoor ambient temperature is too high, such as exceeding 48°C, the difference between the air conditioner's set temperature and the outdoor ambient temperature becomes significant, increasing the workload on the air conditioning system. Consequently, when the outdoor ambient temperature is too high, the air conditioning system experiences excessive pressure. By controlling and switching the refrigerant fluid piping, the air conditioning system pressure is reduced, preventing the air conditioner from shutting down when the PFC module is off.

[0052] On the other hand, in step S640, when the air conditioner's operating mode is determined to be heating mode, a second pipeline control signal is sent, causing the refrigerant fluid to connect to the radiator via the second refrigerant pipeline. Therefore, when the air conditioner is running in heating mode, by activating the longer second refrigerant management pipeline, the probability of radiator frosting due to excessive refrigerant temperature differences in the pipeline is effectively reduced, and the heating effect of the air conditioner can be guaranteed to a certain extent.

[0053] In step S650, if it is determined that the outdoor ambient temperature does not exceed the temperature threshold, the power supply voltage of the air conditioner is compared with the preset voltage threshold.

[0054] Here, the voltage threshold can be determined based on the rated voltage of the mains power grid to detect the presence of low-voltage operating conditions. For example, the rated voltage of the mains power grid in China is 220V, and the corresponding voltage threshold can be 170V or other critical point values ​​to identify and determine the low-voltage operating conditions of the air conditioner.

[0055] In step S661, when the voltage threshold is greater than the voltage threshold, a first pipeline control signal is sent, so that the refrigerant fluid is connected to the radiator through the first refrigerant pipeline.

[0056] In step S663, when the voltage threshold does not exceed the voltage threshold, a second pipeline control signal is sent, so that the refrigerant fluid is connected to the radiator through the second refrigerant pipeline.

[0057] It should be noted that in some countries and regions, due to unstable power grid voltage, air conditioners often operate at reduced frequency under low voltage, which can increase the workload of the compressor system to some extent. Therefore, when the outdoor ambient temperature is detected to be low, it is necessary to further check whether the air conditioner's power supply voltage is low to comprehensively identify the operating pressure of the air conditioning system. If the system operating pressure is detected to be high, multiple circuit splitting is activated to reduce the system pressure and effectively reduce the risk of air conditioner shutdown.

[0058] The air conditioning operation control device provided in this application is described below. The air conditioning operation control device described below can be referred to in correspondence with the air conditioning operation control method described above.

[0059] Figure 7 A structural block diagram of an example air conditioning operation control device according to an embodiment of this application is shown.

[0060] like Figure 7 As shown, the air conditioning operation control device 700 includes an acquisition unit 710, a first control unit 720, and a second control unit 730.

[0061] The acquisition unit 710 is used to acquire the working status of the PFC module of the air conditioner; the working status is either the start-up state or the shutdown state.

[0062] The first control unit 720 is used to send a first pipeline control signal when the working state is the start state, so that the refrigerant fluid is connected from the compressor of the air conditioner to the radiator of the air conditioner through the first refrigerant pipeline.

[0063] The second control unit 730 is used to send a second pipeline control signal when the operating state is the off state, so that the refrigerant fluid is connected from the compressor to the radiator through the second refrigerant pipeline or the first refrigerant pipeline; the first refrigerant contact area between the first refrigerant pipeline and the radiator is smaller than the second refrigerant contact area between the second refrigerant pipeline and the radiator.

[0064] Figure 8 An example is a schematic diagram of the physical structure of an air conditioner, such as... Figure 8As shown, the air conditioner may include: a processor 810, a communication interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other through the communication bus 840. The processor 810 can call logical instructions in the memory 830 to execute an air conditioner operation control method, which includes: obtaining the operating status of the air conditioner's PFC module; the operating status being either a start-up state or a stop-down state; when the operating status is start-up, sending a first pipeline control signal, causing refrigerant fluid to flow from the air conditioner's compressor through a first refrigerant pipeline to the air conditioner's radiator; and when the operating status is stop-down, sending a second pipeline control signal, causing refrigerant fluid to flow from the compressor through a second refrigerant pipeline or the first refrigerant pipeline to the radiator; wherein the first refrigerant contact area between the first refrigerant pipeline and the radiator is smaller than the second refrigerant contact area between the second refrigerant pipeline and the radiator.

[0065] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0066] On the other hand, this application also provides a computer program product, which includes a computer program that can be stored on a computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the air conditioner operation control method provided by the above methods. The method includes: obtaining the working state of the PFC module of the air conditioner; the working state being either a start-up state or a stop-down state; when the working state is a start-up state, sending a first pipeline control signal to connect refrigerant fluid from the compressor of the air conditioner to the radiator of the air conditioner via a first refrigerant pipeline; and when the working state is a stop-down state, sending a second pipeline control signal to connect refrigerant fluid from the compressor to the radiator via a second refrigerant pipeline or the first refrigerant pipeline; wherein the first refrigerant contact area between the first refrigerant pipeline and the radiator is smaller than the second refrigerant contact area between the second refrigerant pipeline and the radiator.

[0067] In another aspect, this application also provides a computer-readable storage medium, the computer-readable storage medium including a stored program, wherein the program, when running, executes the air conditioner operation control method provided by the above methods, the method comprising: obtaining the operating state of the PFC module of the air conditioner; the operating state being either a start-up state or a stop-down state; when the operating state is a start-up state, sending a first pipeline control signal to connect refrigerant fluid from the compressor of the air conditioner to the radiator of the air conditioner via a first refrigerant pipeline; and when the operating state is a stop-down state, sending a second pipeline control signal to connect refrigerant fluid from the compressor to the radiator via a second refrigerant pipeline or the first refrigerant pipeline; wherein a first refrigerant contact area between the first refrigerant pipeline and the radiator is smaller than a second refrigerant contact area between the second refrigerant pipeline and the radiator.

[0068] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0069] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An air conditioning operation control method, characterized in that, The method includes: Obtain the operating status of the PFC module of the air conditioner; the operating status is either in the start state or the off state. When the operating state is the start state, a first pipeline control signal is sent, causing refrigerant fluid to flow from the air conditioner's compressor through the first refrigerant pipeline to the air conditioner's radiator; and When the operating state is the off state, a second pipeline control signal is sent, so that the refrigerant fluid flows from the compressor through the second refrigerant pipeline or the first refrigerant pipeline to the radiator; the first refrigerant contact area between the first refrigerant pipeline and the radiator is smaller than the second refrigerant contact area between the second refrigerant pipeline and the radiator; When the operating state is the off state, the method further includes: When the air conditioner is determined to be in cooling mode, the outdoor ambient temperature of the air conditioner is compared with a preset temperature threshold; the outdoor ambient temperature is the temperature of the environment where the outdoor unit of the air conditioner is located. If the outdoor ambient temperature is determined to be greater than the temperature threshold, a second pipeline control signal is sent, so that the refrigerant fluid is connected to the radiator through the second refrigerant pipeline; If it is determined that the outdoor ambient temperature does not exceed the temperature threshold, the method further includes: Compare the air conditioner's power supply voltage with a preset voltage threshold; When the voltage threshold is greater than the voltage threshold, a first pipeline control signal is sent, causing the refrigerant fluid to flow through the first refrigerant pipeline to the radiator; and When the voltage threshold is not exceeded, a second pipeline control signal is sent, so that the refrigerant fluid is connected to the radiator through the second refrigerant pipeline.

2. The air conditioning operation control method according to claim 1, characterized in that, The air conditioner includes a reversing valve, a main refrigerant line connecting the radiator and the compressor, and at least one bypass branch connected in parallel with the main refrigerant line. The reversing valve is used to control the refrigerant fluid in the line to flow in a first fluid direction or a second fluid direction. Each bypass branch is provided with a one-way valve that opens to the first fluid direction and closes to the second fluid direction. Sending a first pipeline control signal to connect refrigerant fluid from the compressor to the radiator via the first refrigerant pipeline includes: Send a first pipeline control signal to allow refrigerant fluid to flow from the compressor of the air conditioner through the main refrigerant pipeline to the radiator.

3. The air conditioning operation control method according to claim 2, characterized in that, Sending the second pipeline control signal to connect the refrigerant fluid from the compressor to the radiator via the second refrigerant pipeline includes: A second pipeline control signal is sent, causing refrigerant fluid to flow from the air conditioner's compressor through the main refrigerant pipeline and each of the bypass branches to the radiator.

4. The air conditioning operation control method according to claim 1, characterized in that, The process of obtaining the operating status of the air conditioner's PFC module includes: In response to the air conditioner start command, obtain the working status of the air conditioner's PFC module.

5. An air conditioning operation control device, characterized in that, The device includes: The acquisition unit is used to acquire the operating status of the PFC module of the air conditioner; the operating status is either a start-up state or a shutdown state. A first control unit is configured to, when the operating state is the start state, send a first pipeline control signal, causing refrigerant fluid to flow from the compressor of the air conditioner through the first refrigerant pipeline to the radiator of the air conditioner; and The second control unit is configured to send a second pipeline control signal when the operating state is the off state, so that the refrigerant fluid flows from the compressor through the second refrigerant pipeline or the first refrigerant pipeline to the radiator; the first refrigerant contact area between the first refrigerant pipeline and the radiator is smaller than the second refrigerant contact area between the second refrigerant pipeline and the radiator. When the operating state is the off state, the second control unit is further configured to: When the air conditioner is determined to be in cooling mode, the outdoor ambient temperature of the air conditioner is compared with a preset temperature threshold; the outdoor ambient temperature is the temperature of the environment where the outdoor unit of the air conditioner is located. If the outdoor ambient temperature is determined to be greater than the temperature threshold, a second pipeline control signal is sent, so that the refrigerant fluid is connected to the radiator through the second refrigerant pipeline; If it is determined that the outdoor ambient temperature does not exceed the temperature threshold, the method further includes: Compare the air conditioner's power supply voltage with a preset voltage threshold; The first control unit is configured to send a first pipeline control signal when the voltage threshold is greater than the voltage threshold, thereby connecting the refrigerant fluid to the radiator via the first refrigerant pipeline; and The second control unit is configured to send a second pipeline control signal when the voltage threshold does not exceed the voltage threshold, so that the refrigerant fluid is connected to the radiator through the second refrigerant pipeline.

6. An air conditioner, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, The processor is configured to execute the air conditioning operation control method as described in any one of claims 1-4 via the computer program.

7. A computer-readable storage medium comprising a stored program, characterized in that, The program executes the air conditioning operation control method as described in any one of claims 1-4 during runtime.

Citation Information

Patent Citations

  • Air conditioner and control method thereof

    CN115950076A

  • Air conditioner, and method for controlling PFC circuit of air conditioner

    WO2023005594A1