Air conditioner control method and device, air conditioner and storage medium

By installing a vertically movable return air module in the air conditioner, the height of the return air inlet is adjusted according to the difference between the indoor temperature and the set temperature, thus solving the problem of controlling the return liquid volume of the liquid receiver and achieving safe operation and load matching of the compressor.

CN119196884BActive Publication Date: 2026-01-23TCL AIR CONDITIONER ZHONGSHAN CO LTD
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Patent Information

Application Number
CN202411506343.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2026-01-23
Estimated Expiration
2044-10-25

AI Technical Summary

Technical Problem

In existing air conditioners, the compressor's liquid receiver cannot control the amount of liquid returning, which makes it easy for liquid refrigerant to flow back into the compressor. This is especially true when the air conditioner's evaporation load is low, which can easily cause liquid slugging and damage the compressor.

Method used

By installing a vertically movable return air module in the air conditioner, adjusting the height of the return air inlet, and controlling the movement of the return air module according to the difference between the indoor temperature and the set temperature, the amount of liquid returned by the compressor can be adjusted.

Benefits of technology

Effectively matches cooling or heating load requirements, avoids liquid slugging damage caused by excessive liquid return, and improves the reliability and safety of air conditioners.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an air conditioner control method and device, an air conditioner and a storage medium. The air conditioner control method comprises the following steps: after the air conditioner enters a refrigeration mode, when the indoor temperature is greater than a refrigeration set temperature, controlling the up-down movement of a return air module according to the indoor temperature and the refrigeration set temperature. The up-down movement of the return air module is controlled according to the indoor temperature and the refrigeration set temperature, and the return liquid amount is adjusted according to the indoor temperature and the refrigeration set temperature, so that the position of the return air module can match the load demand of refrigeration, and liquid impact caused by excessive return liquid can be avoided.
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Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, and in particular to an air conditioner control method, device, air conditioner, and storage medium. Background Technology

[0002] An air conditioner, or air conditioner, is a device that directly provides treated air to a room or other enclosed area, regulating indoor temperature, humidity, cleanliness, and airflow speed (freshness). During air conditioner operation, the liquid receiver tank on the existing compressor cannot control the amount of liquid returning. The liquid refrigerant in the receiver tank can easily flow back into the compressor, especially when the air conditioner's evaporation load is low. This liquid-laden air intake can easily cause liquid slugging and damage to the compressor. Summary of the Invention

[0003] The main objective of this invention is to provide an air conditioner control method, device, air conditioner, and storage medium, aiming to improve the technical problem that the compressor cannot autonomously control the amount of liquid return in the prior art.

[0004] An embodiment of the present invention provides an air conditioner control method for controlling an air conditioner, the air conditioner including a compressor and a liquid storage tank connected to the suction port of the compressor, the liquid storage tank being provided with a return air module, the return air module being provided with a return air port connected to the suction port, the return air module being able to adjust the height position of the return air port by vertical movement, the air conditioner control method including:

[0005] After the air conditioner enters the cooling mode, when the indoor temperature is higher than the cooling set temperature, the return air module is controlled to move up and down according to the indoor temperature and the cooling set temperature to adjust the height position of the return air port.

[0006] In some embodiments of the present invention, adjusting the height of the return air module according to the indoor temperature and the cooling set temperature includes:

[0007] Determine a first difference between the indoor temperature and the cooling set temperature;

[0008] The return air module is controlled to move up and down based on the first difference.

[0009] In some embodiments of the present invention, controlling the up-and-down movement of the return air module according to the first difference includes:

[0010] Determine the range of the first difference and control the up-and-down movement of the return air module according to the range of the first difference;

[0011] If the first difference is greater than the first threshold and less than or equal to the second threshold, then the return air module is moved to the first height position;

[0012] If the first difference is greater than the second threshold and less than or equal to the third threshold, then the return air module is moved to the second height position;

[0013] If the first difference is greater than the third threshold and less than or equal to the fourth threshold, then the return air module is moved to the third height position;

[0014] The first height position is higher than the second height position, and the second height position is higher than the third height position.

[0015] In some embodiments of the present invention, controlling the up-and-down movement of the return air module according to the first difference includes:

[0016] The return air module is controlled to decrease as the first difference increases and increase as the first difference decreases.

[0017] In some embodiments of the present invention, the air conditioner control method further includes:

[0018] After the air conditioner enters the heating mode, when the indoor temperature is lower than the heating set temperature, the return air module is adjusted and controlled to move up and down according to the indoor temperature and the heating set temperature to adjust the height position of the return air port.

[0019] In some embodiments of the present invention, controlling the up-and-down movement of the return air module based on the indoor temperature and the heating set temperature includes:

[0020] Determine a second difference between the heating set temperature and the indoor temperature;

[0021] The return air module is controlled to move up and down based on the second difference.

[0022] In some embodiments of the present invention, controlling the up-and-down movement of the return air module according to the second difference includes:

[0023] Determine the range of the second difference and control the up-and-down movement of the return air module according to the range of the second difference;

[0024] If the second difference is greater than the fifth threshold and less than or equal to the sixth threshold, then the return air module is moved to the fourth height position;

[0025] If the second difference is greater than the sixth threshold and less than or equal to the seventh threshold, then the return air module is moved to the fifth height position;

[0026] If the second difference is greater than the seventh threshold and less than or equal to the eighth threshold, then the return air module is moved to the sixth height position;

[0027] The fourth altitude position is higher than the fifth altitude position, and the fifth altitude position is higher than the sixth altitude position.

[0028] In some embodiments of the present invention, controlling the up-and-down movement of the return air module according to the second difference includes:

[0029] The position of the return air module is controlled to decrease as the second difference increases and increase as the second difference decreases.

[0030] In some embodiments of the present invention, an air conditioner control device is also provided, comprising:

[0031] The acquisition module is used to acquire the indoor temperature after the air conditioner enters the cooling mode; the acquisition module is also used to acquire the indoor temperature after the air conditioner enters the heating mode.

[0032] The judgment module is used to determine whether the indoor temperature is greater than the cooling set temperature after the air conditioner enters the cooling mode; the judgment module is also used to determine whether the indoor temperature is less than the heating set temperature after the air conditioner enters the heating mode.

[0033] The control module is used to control the return air module to move up and down according to the indoor temperature and the cooling set temperature after the air conditioner enters the cooling mode and the indoor temperature is greater than the cooling set temperature; the control module is also used to control the return air module to move up and down according to the indoor temperature and the heating set temperature after the air conditioner enters the heating mode and the indoor temperature is less than the heating set temperature.

[0034] In some embodiments of the present invention, an air conditioner is also provided, including a compressor, a liquid storage tank communicating with the suction port of the compressor, a memory, and a processor. The liquid storage tank is provided with a return air module, and the return air module is provided with a return air port communicating with the suction port. The height position of the return air port can be adjusted by the up-and-down movement of the return air module. The memory stores a computer program, and the processor is used to run the computer program in the memory to execute the steps in the above-described air conditioner control method.

[0035] In some embodiments of the present invention, a storage medium is also provided, the storage medium storing a computer program, the computer program being executed and loaded by a processor to perform the steps in the above-described air conditioner control method.

[0036] Embodiments of the present invention provide an air conditioner control method, device, air conditioner, and storage medium. The air conditioner control method, after the air conditioner enters cooling mode, controls the up-and-down movement of the return air module based on the indoor temperature and the cooling set temperature when the indoor temperature is higher than the set cooling temperature. That is, controlling the up-and-down movement of the return air module by adjusting the position of the return air inlet based on the indoor temperature and the cooling set temperature essentially controls the amount of liquid returned by the compressor. This ensures that the position of the return air module matches the cooling load demand while preventing excessive liquid return that could lead to liquid slugging. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0038] Figure 1 This is a flowchart illustrating an embodiment of an air conditioner control method according to the present invention;

[0039] Figure 2 This is a schematic diagram of the structure of an air conditioner control device according to an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the structure of an air conditioner according to an embodiment of the present invention;

[0041] Figure 4 This is a schematic diagram of the compressor and liquid storage tank according to an embodiment of the present invention.

[0042] Reference numerals: 10, Air conditioner control device; 20, Compressor; 30, Liquid receiver; 31, Gas return module; 32, Gas return pipe; 100, Acquisition module; 200, Judgment module; 300, Control module. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0047] like Figures 1-4 As shown, the present invention provides an air conditioner control method for controlling an air conditioner. The air conditioner includes a compressor and a liquid receiver connected to the compressor's suction port. A return air module is provided in the liquid receiver, and the return air module has a return air port connected to the suction port. The height of the return air port can be adjusted vertically by the return air module. The air conditioner control method includes:

[0048] S100, after the air conditioner enters the cooling mode, when the indoor temperature is higher than the cooling set temperature, controls the return air module to move up and down according to the indoor temperature and the cooling set temperature to adjust the height position of the return air port.

[0049] The cooling set temperature is the indoor temperature that the user sets for the air conditioner in cooling mode, which is generally lower than the indoor temperature at the beginning of cooling.

[0050] The control of the up-and-down movement of the return gas module is to adjust the position of the return gas module in the height direction of the liquid storage tank. There are two adjustment methods: one is to adjust the position of the return gas module upward, that is, to raise the position of the return gas port; the other is to adjust the position of the return gas module downward, that is, to lower the position of the return gas port.

[0051] Specifically, the system can periodically acquire indoor temperature data after the air conditioner enters cooling mode, and periodically adjust the position of the return air module based on the acquired indoor temperature data.

[0052] Understandably, this air conditioner control method controls the up-and-down movement of the return air module based on the indoor temperature and the cooling set temperature. In essence, it adjusts the height of the return air inlet according to the indoor temperature and the cooling set temperature, thereby adjusting the amount of liquid returned by the compressor. This ensures that the position of the return air module matches the cooling load demand and also avoids excessive liquid return that could lead to liquid slugging.

[0053] In some embodiments, S100, adjusting the height of the return air module according to the indoor temperature and the cooling set temperature includes:

[0054] S110 determines the first difference between the indoor temperature and the cooling set temperature.

[0055] When the indoor temperature is higher than the cooling set temperature, the first difference is equal to the indoor temperature minus the cooling set temperature.

[0056] The first difference essentially reflects the load level of the air conditioner compressor based on the current indoor temperature. The larger the first difference, the greater the compressor load, and the smaller the first difference, the smaller the compressor load.

[0057] S120 controls the up-and-down movement of the return air module based on the first difference.

[0058] The position of the gas return module represents the liquid return volume. The lower the position of the gas return module, the greater the liquid return volume, and the higher the position of the gas return module, the lower the liquid return volume.

[0059] Therefore, controlling the up-and-down movement of the return gas module based on the first difference is essentially adjusting the amount of liquid returned by the compressor according to the compressor load.

[0060] In some embodiments, S120, controlling the up-and-down movement of the return air module according to the first difference includes:

[0061] S121, determine the range of the first difference and control the up and down movement of the return air module according to the range of the first difference.

[0062] The air conditioner controller has multiple pre-stored difference ranges (i.e., difference intervals). After determining the first difference, the corresponding difference range (difference interval) can be matched. After determining the difference range (difference interval) in which the first difference is located, the return gas module can be controlled to move up and down according to the difference range (difference interval) in which the first difference is located. Since the larger the first difference is, the larger the compressor load is, the larger the required liquid return volume is, and the lower the return gas module needs to be adjusted; the smaller the first difference is, the smaller the compressor load is, the smaller the required liquid return volume is, and the higher the return gas module needs to be adjusted.

[0063] S122, if the first difference is greater than the first threshold and less than or equal to the second threshold, then the return air module is moved to the first height position.

[0064] S123, if the first difference is greater than the second threshold and less than or equal to the third threshold, then move the return air module to the second height position.

[0065] S124, if the first difference is greater than the third threshold and less than or equal to the fourth threshold, then move the return air module to the third height position.

[0066] Among them, the first threshold is less than the second threshold, the second threshold is less than the third threshold, the third threshold is less than the fourth threshold, the first height position is higher than the second height position, and the second height position is higher than the third height position. That is, a difference range (difference interval) corresponds to a height position. If multiple different first differences are within a difference range, then multiple different first differences are still at the same height position.

[0067] In some embodiments, S120, controlling the up-and-down movement of the return air module according to the first difference includes:

[0068] The position of the control return air module decreases as the first difference increases and increases as the first difference decreases.

[0069] In this embodiment, the indoor temperature can be acquired periodically, and the first difference value of the corresponding period can be determined. Then, based on the first difference value determined periodically, the up and down movement of the return air module can be adaptively controlled. If the first difference value determined in this period is smaller than that in the previous period, the position of the return air module is appropriately lowered. If the first difference value in this period is larger than that in the previous period, the position of the return air module is appropriately raised.

[0070] In some embodiments, the air conditioner control method further includes:

[0071] In the S500, after the air conditioner enters heating mode, if the indoor temperature is lower than the heating set temperature, the return air module is controlled to move up and down according to the indoor temperature and the heating set temperature.

[0072] The heating set temperature is the indoor temperature that the user sets for the air conditioner in heating mode, which is generally lower than or higher than the indoor temperature at the beginning of heating.

[0073] In the heating mode, the method for controlling the up and down movement of the return gas module is the same as the above-mentioned method, which includes two adjustment methods: adjusting upward or downward along the height of the liquid storage tank.

[0074] This air conditioner control method controls the up-and-down movement of the return air module by adjusting the indoor temperature and the heating set temperature. In essence, it adjusts the position of the return air port according to the indoor temperature and the heating set temperature, thereby adjusting the amount of liquid returned by the compressor. This ensures that the position of the return air module can match the heating load demand and also avoid excessive liquid return that could lead to liquid slugging.

[0075] In some embodiments, S500, controlling the up-and-down movement of the return air module according to the indoor temperature and the heating set temperature includes:

[0076] S510 obtains the second difference between the heating set temperature and the indoor temperature.

[0077] Specifically, when the indoor temperature is lower than the heating set temperature, the second difference is equal to the heating set temperature minus the indoor temperature.

[0078] The second difference essentially reflects the load level of the air conditioner compressor based on the current indoor temperature. The larger the second difference, the greater the compressor load, and the smaller the second difference, the smaller the compressor load.

[0079] S520 controls the up-and-down movement of the return air module based on the second difference.

[0080] The position of the gas return module represents the liquid return volume. The lower the position of the gas return module, the greater the liquid return volume, and the higher the position of the gas return module, the lower the liquid return volume.

[0081] Therefore, controlling the up-and-down movement of the return gas module based on the second difference is essentially adjusting the amount of liquid returned by the compressor according to the compressor load.

[0082] In some embodiments, S520, controlling the up-and-down movement of the return air module according to the second difference includes:

[0083] S521, determine the temperature range of the second difference, and control the up and down movement of the return gas module according to the temperature range corresponding to the second difference.

[0084] The air conditioner controller has multiple pre-stored difference ranges (i.e., difference intervals). After determining the second difference, the corresponding difference range (difference interval) can be matched. After determining the difference range (difference interval) in which the second difference is located, the return gas module can be controlled to move up and down according to the difference range (difference interval) in which the second difference is located. Since the larger the second difference is, the larger the compressor load is, the larger the required liquid return volume is, and the lower the return gas module needs to be adjusted; the smaller the second difference is, the smaller the compressor load is, the smaller the required liquid return volume is, and the higher the return gas module needs to be adjusted.

[0085] S522, if the second difference is greater than the fifth threshold and less than or equal to the sixth threshold, then move the return air module to the fourth height position.

[0086] S523, if the second difference is greater than the sixth threshold and less than or equal to the seventh threshold, then move the return air module to the fifth height position.

[0087] S524, if the second difference is greater than the seventh threshold and less than or equal to the eighth threshold, then move the return air module to the sixth height position.

[0088] The fourth altitude position is higher than the fifth altitude position, and the fifth altitude position is higher than the sixth altitude position.

[0089] Among them, the fifth threshold is less than the sixth threshold, the sixth threshold is less than the seventh threshold, the seventh threshold is less than the eighth threshold, the fourth height position is higher than the fifth height position, and the fifth height position is higher than the sixth height position. That is, a difference range (difference interval) corresponds to a height position. If multiple different second differences are within a difference range, then multiple different second differences are still at the same height position.

[0090] In some embodiments, S520, controlling the up-and-down movement of the return air module according to the second difference includes:

[0091] The position of the control return air module decreases as the second difference increases and increases as the second difference decreases.

[0092] In this embodiment, the indoor temperature can be acquired periodically, and a second difference value corresponding to the period can be determined. Then, based on the periodically determined second difference value, the up and down movement of the return air module can be adaptively controlled. If the first difference value determined in this period is smaller than that in the previous period, the position of the return air module is appropriately lowered. If the second difference value in this period is larger than that in the previous period, the position of the return air module is appropriately raised.

[0093] In some embodiments, the present invention also provides an air conditioner control device 10, including an acquisition module 100, a judgment module 200, and a control module 300. The acquisition module 100 is used to acquire the indoor temperature after the air conditioner enters cooling mode; the acquisition module 100 is also used to acquire the indoor temperature after the air conditioner enters heating mode. The judgment module 200 is used to determine whether the indoor temperature is greater than the cooling set temperature after the air conditioner enters cooling mode; the judgment module 200 is also used to determine whether the indoor temperature is less than the heating set temperature after the air conditioner enters heating mode. The control module 300 is used to control the recirculation module to move up and down according to the indoor temperature and the cooling set temperature when the air conditioner enters cooling mode and the indoor temperature is greater than the cooling set temperature; the control module 300 is also used to control the recirculation module to move up and down according to the indoor temperature and the heating set temperature when the air conditioner enters heating mode and the indoor temperature is less than the heating set temperature.

[0094] The acquisition module 100 is also used to periodically acquire the indoor temperature after the air conditioner enters the cooling mode. The acquisition module 100 is also used to periodically acquire the indoor temperature after the air conditioner enters the heating mode.

[0095] In some embodiments, the present invention also provides an air conditioner, which may include components such as a processor 601 with one or more processing cores, a memory 602 with one or more computer-readable storage media, a power supply 603, and an input unit 604. Those skilled in the art will understand that the above-described structure of the air conditioner does not constitute a limitation on the air conditioner, and it may include more or fewer components, or combine certain components, or have different component arrangements. Wherein:

[0096] The processor 601 is the controller of the air conditioner, connecting various parts of the air conditioner through various interfaces and lines. It performs various functions and processes data by running or executing software programs and / or modules stored in the memory 602, and by calling data stored in the memory 602, thereby providing overall monitoring of the air conditioner. Optionally, the processor 601 may include one or more processing cores; preferably, the processor 601 may integrate an application processor 601 and a modem processor 601, wherein the application processor 601 mainly handles the operating system, user interface, and computer programs, while the modem processor 601 mainly handles wireless communication. It is understood that the modem processor 601 may also not be integrated into the processor 601.

[0097] The memory 602 can be used to store software programs and modules. The processor 601 executes various functional applications and data processing by running the software programs and modules stored in the memory. The memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, computer programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the server, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory may also include a memory controller to provide the processor 601 with access to the memory.

[0098] The air conditioner also includes a power supply 603 that supplies power to various components. Preferably, the power supply 603 can be logically connected to the processor 601 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply may also include one or more DC or AC power supplies, a recharging system, a power fault detection circuit, a power converter or inverter, a power status indicator, or any other components.

[0099] The air conditioner may also include an input unit 604, which can be used to receive input digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0100] Although not shown, the air conditioner may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 601 in the air conditioner loads the executable files corresponding to the processes of one or more computer programs into the memory 602 according to the following instructions, and the processor 601 runs the computer programs stored in the memory 602 to perform the following steps:

[0101] After the air conditioner enters cooling mode, when the indoor temperature is higher than the set cooling temperature, the return air module is controlled to move up and down according to the indoor temperature and the set cooling temperature to adjust the height of the return air inlet.

[0102] This air conditioner controls the up-and-down movement of the return air module by adjusting the indoor temperature and the cooling set temperature. In essence, it adjusts the height of the return air inlet according to the indoor temperature and the cooling set temperature, thereby adjusting the amount of liquid returned by the compressor. This ensures that the position of the return air module matches the cooling load demand and also avoids excessive liquid return that could lead to liquid slugging.

[0103] like Figure 4As shown, the air conditioner also includes a compressor 20, a liquid storage tank 30 connected to the suction port of the compressor 20, a memory 602, and a processor 601. The liquid storage tank 30 is provided with a return air module 31, which has a return air port connected to the suction port. The height position of the return air port can be adjusted by moving the return air module 31 up and down.

[0104] Specifically, the air conditioner also includes a compressor 20 and a liquid storage tank 30 connected thereto. The liquid storage tank 30 is provided with a return gas module 31 and a return gas pipe 32. The return gas pipe 32 is connected to the compressor 20. The return gas module 31 is slidably connected to the return gas pipe 32. The return gas module 31 is provided with a return gas port connected to the return gas pipe 32.

[0105] Generally, the return pipe 32 is a rigid pipe, installed in the liquid storage tank 30 along the height direction of the liquid storage tank 30, and one end of the return pipe 32 is connected to the suction port of the compressor 20. The return pipe 32 is provided with a first opening, which connects the return pipe 32 and the internal space of the liquid storage tank 30. The return module 31 has a return port, which is slidably installed on the return pipe 32. A flexible hose is connected between the first opening and the return port, which allows the return port to be connected to the first opening. By sliding the return module 31 on the return pipe 32, the height position of the return port can be adjusted, thereby adjusting the amount of liquid returned by the compressor 20.

[0106] Those skilled in the art will understand that all or part of the steps in any of the methods in the above embodiments can be performed by a computer program or by a computer program controlling related hardware. The computer program can be stored in a computer-readable storage medium and loaded and executed by the processor 601.

[0107] In some embodiments, the present invention also provides a storage medium storing a computer program, which is executed and loaded by a processor to perform the following steps;

[0108] After the air conditioner enters the cooling mode, when the indoor temperature is higher than the cooling set temperature, the return air module is controlled to move up and down according to the indoor temperature and the cooling set temperature.

[0109] After the air conditioner enters heating mode, if the indoor temperature is lower than the heating set temperature, the return air module is controlled to move up and down according to the indoor temperature and the heating set temperature.

[0110] Through the above steps, the up-and-down movement of the return gas module is controlled by the indoor temperature and the cooling / heating set temperature. In essence, the amount of liquid returned by the compressor is adjusted according to the indoor temperature and the cooling / heating set temperature, so that the position of the return gas module can match the cooling or heating load demand and avoid excessive liquid return that could lead to liquid slugging.

[0111] It will be understood by those skilled in the art that any references to memory, storage, database, or other media used in the embodiments provided by this invention may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0112] Since the computer program stored in the storage medium can execute the steps in the air conditioner control method in any embodiment of the present invention, the beneficial effects that the air conditioner control method in any embodiment of the present invention can achieve can be realized, as detailed in the preceding embodiments, and will not be repeated here.

[0113] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0114] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0115] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the application concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An air conditioner control method, characterized in that, For controlling an air conditioner, the air conditioner includes a compressor and a liquid receiver tank connected to the compressor's suction port. The liquid receiver tank is equipped with a return air module, which has a return air port connected to the suction port. The height of the return air port can be adjusted vertically by the return air module. The air conditioner control method includes: After the air conditioner enters the cooling mode, when the indoor temperature is higher than the cooling set temperature, the return air module is controlled to move up and down according to the indoor temperature and the cooling set temperature to adjust the height position of the return air port. The step of controlling the up-and-down movement of the return air module based on the indoor temperature and the set cooling temperature includes: Determine a first difference between the indoor temperature and the cooling set temperature; The air return module is controlled to move up and down based on the first difference. The step of controlling the up-and-down movement of the return air module based on the first difference includes: Determine the range of the first difference and control the up-and-down movement of the return air module according to the range of the first difference; If the first difference is greater than the first threshold and less than or equal to the second threshold, then control the return air module to move to the first height position; If the first difference is greater than the second threshold and less than or equal to the third threshold, then the return air module is moved to the second height position; If the first difference is greater than the third threshold and less than or equal to the fourth threshold, then the return air module is moved to the third height position; The first height position is higher than the second height position, and the second height position is higher than the third height position.

2. The air conditioner control method according to claim 1, characterized in that, The air conditioner control method further includes: after the air conditioner enters the heating mode, when the indoor temperature is lower than the heating set temperature, adjusting and controlling the return air module to move up and down according to the indoor temperature and the heating set temperature to adjust the height position of the return air port.

3. The air conditioner control method according to claim 2, characterized in that, The step of controlling the up-and-down movement of the return air module based on the indoor temperature and the heating set temperature includes: Determine a second difference between the heating set temperature and the indoor temperature; The return air module is controlled to move up and down based on the second difference.

4. The air conditioner control method according to claim 3, characterized in that, The step of controlling the up-and-down movement of the return air module based on the second difference includes: Determine the range of the second difference and control the up-and-down movement of the return air module according to the range of the second difference; If the second difference is greater than the fifth threshold and less than or equal to the sixth threshold, then the return air module is moved to the fourth height position; If the second difference is greater than the sixth threshold and less than or equal to the seventh threshold, then the return air module is moved to the fifth height position; If the second difference is greater than the seventh threshold and less than or equal to the eighth threshold, then the return air module is moved to the sixth height position; The fourth altitude position is higher than the fifth altitude position, and the fifth altitude position is higher than the sixth altitude position.

5. The air conditioner control method according to claim 3, characterized in that, The step of controlling the up-and-down movement of the return air module based on the second difference includes: The position of the return air module is controlled to decrease as the second difference increases and increase as the second difference decreases.

6. An air conditioner control device for controlling an air conditioner, the air conditioner comprising a compressor and a liquid storage tank communicating with the suction port of the compressor, the liquid storage tank being provided with a return air module, the return air module being provided with a return air port communicating with the suction port, the height position of the return air port being adjustable by vertical movement of the return air module, characterized in that, The air conditioner control device includes: The acquisition module is used to acquire the indoor temperature after the air conditioner enters the cooling mode; the acquisition module is also used to acquire the indoor temperature after the air conditioner enters the heating mode. The judgment module is used to determine whether the indoor temperature is greater than the cooling set temperature after the air conditioner enters the cooling mode; the judgment module is also used to determine whether the indoor temperature is less than the heating set temperature after the air conditioner enters the heating mode. The control module is used to control the return air module to move up and down according to the indoor temperature and the cooling set temperature after the air conditioner enters the cooling mode and the indoor temperature is greater than the cooling set temperature; the control module is also used to control the return air module to move up and down according to the indoor temperature and the heating set temperature after the air conditioner enters the heating mode and the indoor temperature is less than the heating set temperature. The step of controlling the up-and-down movement of the return air module based on the indoor temperature and the set cooling temperature includes: Determine a first difference between the indoor temperature and the cooling set temperature; The air return module is controlled to move up and down based on the first difference. The step of controlling the up-and-down movement of the return air module based on the first difference includes: Determine the range of the first difference and control the up-and-down movement of the return air module according to the range of the first difference; If the first difference is greater than the first threshold and less than or equal to the second threshold, then control the return air module to move to the first height position; If the first difference is greater than the second threshold and less than or equal to the third threshold, then the return air module is moved to the second height position; If the first difference is greater than the third threshold and less than or equal to the fourth threshold, then the return air module is moved to the third height position; The first height position is higher than the second height position, and the second height position is higher than the third height position.

7. An air conditioner, characterized in that, The device includes a compressor, a liquid storage tank connected to the compressor's intake port, a memory, and a processor. The liquid storage tank is equipped with a return air module, which has a return air port connected to the intake port. The height of the return air port can be adjusted vertically by the return air module. The memory stores a computer program, and the processor is used to run the computer program in the memory to execute the steps of the air conditioner control method according to any one of claims 1-5.

8. A storage medium, characterized in that, The storage medium stores a computer program, which is executed and loaded by a processor to perform the steps of the air conditioner control method according to any one of claims 1-5.

Citation Information

Patent Citations

  • Ejection oil return gas-liquid separator

    CN109210837A

  • Liquid separator structure, compressor and air conditioner

    CN117628749A

  • Gas-liquid separator

    CN201731696U