Air conditioner control method, air conditioner and computer storage medium

Abstract

The present invention discloses a control method for an air conditioner, comprising the following steps: obtaining the superheat of an air jet enthalpy increase auxiliary circuit of the air conditioner, wherein the air jet enthalpy increase auxiliary circuit is provided with an electronic expansion valve; and adjusting the regulation cycle of the electronic expansion valve according to the superheat. The present invention also discloses an air conditioner and a computer storage medium. By obtaining the superheat of the air jet enthalpy increase auxiliary circuit and adjusting the regulation cycle of the electronic expansion valve accordingly, the regulation cycle can be varied according to the superheat of the air jet enthalpy increase auxiliary circuit, thereby avoiding the problem of adjusting the electronic expansion valve once at fixed intervals, resulting in an excessively long or short regulation interval. The regulation cycle of the electronic expansion valve can be more reasonable, the air conditioner can reach a stable state more quickly, and the low-temperature heating effect of the air conditioner is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a control method of an air conditioner, an air conditioner and a computer storage medium. Background Art

[0002] The air conditioner capable of jet reheating is provided with an auxiliary circuit for jet reheating. The refrigerant in the auxiliary circuit can be reduced to a certain intermediate pressure through a throttling device such as an electronic expansion valve, and heat exchange can be carried out with the refrigerant from the main circuit to supercool the refrigerant in the main circuit and improve the low-temperature heating performance of the air conditioner.

[0003] The control of the electronic expansion valve in the auxiliary circuit has a great influence on the low-temperature heating performance of the air conditioner. Currently, the electronic expansion valve is adjusted once at a fixed interval. If the adjustment interval of the electronic expansion valve is too long, the air-conditioning system will not be able to reach a stable state for a long time, and the low-temperature heating effect will be poor. If the adjustment interval of the electronic expansion valve is too short, the adjustment will be too frequent, which will cause large fluctuations in the operating state of the air-conditioning system. Therefore, the current adjustment cycle of the electronic expansion valve is not reasonable.

[0004] The above content is only used to assist in understanding the technical solution of the present invention and does not constitute an admission that the above content is prior art. Summary of the Invention

[0005] The main purpose of the present invention is to provide a control method for an air conditioner, an air conditioner and a computer storage medium, aiming to solve the technical problem that the adjustment cycle of the electronic expansion valve is unreasonable, which is not conducive to the air conditioning system to quickly reach a stable state.

[0006] To achieve the above object, the present invention provides a method for controlling an air conditioner, the method comprising the following steps:

[0007] Obtaining a superheat degree of an air-injection enthalpy-increasing auxiliary circuit of the air conditioner, wherein the air-injection enthalpy-increasing auxiliary circuit is provided with an electronic expansion valve;

[0008] The regulation cycle of the electronic expansion valve is adjusted according to the superheat.

[0009] Optionally, the step of adjusting the regulation period of the electronic expansion valve according to the superheat degree includes:

[0010] determining a superheat range within which the superheat falls;

[0011] Obtaining a preset period corresponding to the superheat range;

[0012] The regulation period of the electronic expansion valve is adjusted to the preset period.

[0013] Optionally, the step of adjusting the regulation period of the electronic expansion valve according to the superheat degree includes:

[0014] Obtaining a difference between the superheat degree and a preset superheat degree;

[0015] Obtaining a period adjustment value corresponding to the difference;

[0016] The regulation period of the electronic expansion valve is adjusted according to the period adjustment value, wherein the greater the absolute value of the difference is, the smaller the regulation period after adjustment is.

[0017] Optionally, the air conditioner control method further includes:

[0018] Check whether the start-up conditions for jet enthalpy increase are met;

[0019] When the opening condition of the injection enthalpy increase is met, the electronic expansion valve is opened, and the step of obtaining the superheat of the injection enthalpy increase auxiliary path of the air conditioner is performed.

[0020] Optionally, the start-up condition for the air injection enthalpy increase includes at least one of the following:

[0021] The air conditioner is in heating mode;

[0022] The outdoor ambient temperature is lower than the preset ambient temperature;

[0023] The exhaust temperature of the compressor of the air conditioner is greater than a preset exhaust temperature.

[0024] Optionally, after the step of adjusting the regulation period of the electronic expansion valve according to the superheat, the method further includes:

[0025] Obtaining a historical adjustment time point corresponding to the last adjustment of the electronic expansion valve;

[0026] determining a target adjustment time point of the electronic expansion valve according to the adjusted adjustment cycle and the historical adjustment time point;

[0027] When the target adjustment time point is reached, adjusting the opening of the electronic expansion valve;

[0028] Return to the step of obtaining the superheat of the injection enthalpy increase auxiliary path of the air conditioner.

[0029] Optionally, the step of adjusting the regulation period of the electronic expansion valve according to the superheat degree includes:

[0030] Obtaining a change in the opening degree of the electronic expansion valve when the electronic expansion valve was last adjusted;

[0031] Obtaining a preset period corresponding to the superheat degree;

[0032] Modifying the preset period according to the opening change value, wherein the larger the opening change value is, the smaller the modified preset period is;

[0033] The regulation period of the electronic expansion valve is adjusted to the corrected preset period.

[0034] In addition, to achieve the above-mentioned purpose, the present invention also provides an air conditioner, which includes: a memory, a processor, and an air conditioner control program stored on the memory and runnable on the processor. When the air conditioner control program is executed by the processor, the steps of the air conditioner control method described in any one of the above are implemented.

[0035] In addition, to achieve the above-mentioned purpose, the present invention also provides a computer storage medium, on which a control program of an air conditioner is stored. When the control program of the air conditioner is executed by a processor, the steps of the control method of the air conditioner as described above are implemented.

[0036] Embodiments of the present invention provide an air conditioner control method, air conditioner, and computer storage medium. The air conditioner obtains the superheat of an air-jet reheat auxiliary circuit of the air conditioner, which is provided with an electronic expansion valve. The electronic expansion valve's regulation cycle is adjusted based on the superheat. By obtaining the superheat of the air-jet reheat auxiliary circuit and adjusting the electronic expansion valve's regulation cycle accordingly, the present invention allows the regulation cycle to vary with the superheat of the air-jet reheat auxiliary circuit. This avoids adjusting the electronic expansion valve once at fixed intervals, which could result in an excessively long or short regulation interval. This allows for a more reasonable regulation cycle for the electronic expansion valve, allowing the air conditioner to reach a stable state more quickly, and improving the low-temperature heating performance of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the terminal structure of the hardware operating environment involved in the embodiment of the present invention;

[0038] Figure 2 A flow chart of an embodiment of a method for controlling an air conditioner according to the present invention;

[0039] Figure 3 A flow chart of another embodiment of a method for controlling an air conditioner according to the present invention;

[0040] Figure 4 1 is a flow chart of another embodiment of a method for controlling an air conditioner according to the present invention;

[0041] Figure 5 A flow chart of another embodiment of a method for controlling an air conditioner according to the present invention;

[0042] Figure 6The figure is a schematic diagram of the connection relationship of the air conditioner's air injection enthalpy increase auxiliary circuit of the present invention.

[0043] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0044] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0045] An embodiment of the present invention provides a solution by obtaining the superheat corresponding to the jet reheat increase auxiliary circuit and adjusting the regulation period of the electronic expansion valve according to the superheat corresponding to the jet reheat increase auxiliary circuit, so that the regulation period can change with the superheat corresponding to the jet reheat increase auxiliary circuit, thereby avoiding adjusting the electronic expansion valve once at a fixed interval, which may cause the regulation interval to be too long or too short. The regulation period of the electronic expansion valve can be more reasonable, the air conditioner can reach a stable state more quickly, and the low-temperature heating effect of the air conditioner is improved.

[0046] like Figure 1 As shown, Figure 1 It is a schematic diagram of the terminal structure of the hardware operating environment involved in the embodiment of the present invention.

[0047] The terminal in the embodiment of the present invention is an air conditioner.

[0048] like Figure 1 As shown, the terminal may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, and a memory 1004. The communication bus 1002 is used to implement connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a button, and optionally the user interface 1003 may also include a standard wired interface or a wireless interface. The memory 1004 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1004 may optionally be a storage device independent of the aforementioned processor 1001.

[0049] Those skilled in the art will understand that Figure 1 The terminal structure shown in the figure does not constitute a limitation to the terminal, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0050] like Figure 1 As shown, the memory 1004 as a computer storage medium may include a user interface module and a control program for the air conditioner.

[0051] exist Figure 1In the terminal shown, the user interface 1003 is mainly used to connect to the client (user end) and communicate data with the client; and the processor 1001 can be used to call the air conditioner control program stored in the memory 1004 and execute the steps of the air conditioner control method described in each embodiment.

[0052] Reference Figure 2 In one embodiment, a method for controlling an air conditioner includes the following steps:

[0053] Step S10, obtaining the superheat of the air-conditioning system's air-injection enthalpy increase auxiliary circuit, wherein the air-injection enthalpy increase auxiliary circuit is provided with an electronic expansion valve;

[0054] In this embodiment, the air conditioner is provided with an air jet enthalpy increase auxiliary circuit to improve the heat exchange effect of the air conditioner by air jet enthalpy increase. Figure 6 As shown, when the air conditioner is in heating mode, the high-temperature and high-pressure refrigerant gas ejected from the compressor exhaust port passes through the condenser for condensation and cooling, and releases heat. The high-temperature and high-pressure refrigerant liquid obtained by condensation passes through the main electronic expansion valve and is divided into two paths: the main path and the jet enthalpy increase auxiliary path. The refrigerant in the jet enthalpy increase auxiliary path is throttled to a gas-liquid mixture of intermediate pressure under the action of throttling devices such as capillary tubes and jet enthalpy increase electronic expansion valves. The gas-liquid mixture of intermediate pressure exchanges heat with the refrigerant liquid from the main path in the economizer, and the gas of intermediate pressure is cooled. The liquid mixture absorbs heat and turns into refrigerant gas, and flows back to the air supply port of the compressor. The refrigerant liquid from the main line is supercooled and enters the evaporator. The supercooled refrigerant liquid absorbs heat in the evaporator and is evaporated into low-temperature and low-pressure refrigerant gas, and flows back to the compressor through the return air port of the compressor. The compressor compresses the low-temperature and low-pressure refrigerant gas to an intermediate pressure. The compressed refrigerant gas is mixed with the refrigerant gas of intermediate pressure injected from the air supply port of the compressor, and is further compressed into a high-temperature and high-pressure refrigerant gas, which is ejected from the exhaust port of the compressor.

[0055] like Figure 6 As shown in the figure, the jet reheat increase auxiliary circuit in the air conditioner is provided with temperature sensing packages at the economizer inlet and the economizer outlet, which are used to detect the refrigerant temperature at the corresponding position. The refrigerant temperature of the jet reheat increase auxiliary circuit at the economizer inlet is TA, and the refrigerant temperature of the jet reheat increase auxiliary circuit at the economizer outlet is TB. Then, the superheat corresponding to the jet reheat increase auxiliary circuit is (TB-TA).

[0056] The electronic expansion valve provided in the jet enthalpy increase auxiliary circuit is used to throttle the refrigerant so as to throttle the refrigerant to a gas-liquid mixture of intermediate pressure before entering the economizer.

[0057] Step S20: adjusting the regulation cycle of the electronic expansion valve according to the superheat degree.

[0058] In this embodiment, after obtaining the superheat corresponding to the jet enthalpy increase auxiliary circuit, the regulation cycle of the electronic expansion valve is adjusted according to the superheat, wherein the regulation cycle of the electronic expansion valve is the time interval between two adjacent adjustments of the electronic expansion valve.

[0059] Optionally, the jet enthalpy increase auxiliary circuit in the air conditioner is provided with a preset superheat. When the gap between the superheat corresponding to the jet enthalpy increase auxiliary circuit and the preset superheat is small, the adjustment cycle of the electronic expansion valve after adjustment is large. When the gap between the superheat of the jet enthalpy increase auxiliary circuit and the preset superheat is large, the adjustment cycle of the electronic expansion valve after adjustment is small. In this way, since the air conditioner is very close to a stable state when the gap between the superheat of the jet enthalpy increase auxiliary circuit and the preset superheat is small, the opening adjustment degree of the electronic expansion valve is also small, and therefore the adjustment cycle is set to In order to maximize the adjustment period, the air conditioner can avoid fluctuations in state due to multiple adjustments of the electronic expansion valve in a short period of time. Since the air conditioner is far from a stable state when the gap between the superheat of the jet enthalpy increase auxiliary circuit and the preset superheat is large, the opening adjustment degree of the electronic expansion valve is also large. Therefore, the adjustment period is set to a smaller value, so that the electronic expansion valve can be adjusted multiple times in a shorter period of time, so that the opening adjustment of the electronic expansion valve can be carried out more quickly and the opening adjustment of the electronic expansion valve is more accurate, which is conducive to the air conditioner reaching a stable state quickly and achieving a better low-temperature heating effect.

[0060] Optionally, the air conditioner may pre-store multiple superheat ranges and preset cycles corresponding to each superheat range. When adjusting the adjustment cycle of the electronic expansion valve based on the superheat, the superheat range in which the superheat falls can be determined, the preset cycle corresponding to the superheat range can be obtained, and the adjustment cycle of the electronic expansion valve can be adjusted to the preset cycle, thereby adjusting the adjustment cycle of the electronic expansion valve. For example, the air conditioner's jet enthalpy increase auxiliary circuit is provided with a preset superheat. The multiple pre-stored superheat ranges include a first superheat range in which the preset superheat falls and a second superheat range that does not include the preset superheat. The preset cycle corresponding to the first superheat range is greater than the preset cycle corresponding to the second superheat range. The first superheat range in which the preset superheat falls can be determined based on the preset superheat and a superheat error corresponding to the preset superheat.

[0061] Optionally, to more accurately adjust the electronic expansion valve regulation cycle, when adjusting the electronic expansion valve regulation cycle based on the superheat, the difference between the superheat and a preset superheat can be obtained, and a cycle adjustment value corresponding to the difference can be obtained. The regulation cycle of the electronic expansion valve can then be adjusted based on the cycle adjustment value, thereby performing a cycle adjustment based on the current regulation cycle. A larger absolute value of the difference between the superheat and the preset superheat indicates a greater gap between the superheat and the preset superheat, and thus a smaller adjusted regulation cycle can be achieved, allowing the air conditioner to reach a stable state more quickly.

[0062] Optionally, the preset superheat is a target superheat corresponding to the jet enthalpy increase auxiliary circuit. When the actual superheat of the jet enthalpy increase auxiliary circuit reaches the target superheat, the air conditioner is considered to be in a stable state and the low-temperature heating effect of the air conditioner is better. Optionally, the preset superheat can be a fixed value. For example, the preset superheat of the jet enthalpy increase auxiliary circuit is generally set to 5°C.

[0063] In the technical solution disclosed in the present embodiment, for the system with enhanced vapor injection (EVI) enthalpy, the electronic expansion valve of the enhanced vapor injection (EVI) auxiliary circuit will cause the air conditioner to change from a relatively stable state to an unstable state after it is opened. Therefore, the adjustment method of the electronic expansion valve needs to meet the requirement that the air conditioner reaches a stable state as soon as possible, so that the superheat corresponding to the enhanced vapor injection auxiliary circuit is maintained within a reasonable range. If the adjustment cycle is too long, that is, the adjustment is too slow, it will cause the air conditioner to fail to reach the target superheat for a long time, that is, the air conditioner is not easy to reach a stable state; if in low-temperature heating conditions, the superheat corresponding to the enhanced vapor injection auxiliary circuit deviates from the preset superheat for a long time, the low-temperature heating performance of the air conditioner will be reduced, resulting in poor heating effect in low-temperature conditions; if the adjustment period of the electronic expansion valve is too short, the opening of the electronic expansion valve will be adjusted continuously, reducing the service life of the electronic expansion valve. , and the air conditioner is not easy to reach a stable state, and the fluctuation of the operating state of the air conditioner will also cause noise problems. Therefore, this embodiment obtains the superheat corresponding to the jet reheat increase auxiliary circuit, and adjusts the adjustment period of the electronic expansion valve according to the superheat corresponding to the jet reheat increase auxiliary circuit, so that the adjustment period can change with the superheat corresponding to the jet reheat increase auxiliary circuit, avoiding adjusting the electronic expansion valve once at a fixed interval, which causes the adjustment interval to be too long or too short. The adjustment period of the electronic expansion valve can be more reasonable, the air conditioner can reach a stable state more quickly, the low-temperature heating effect of the air conditioner is improved, the adjustment times of the electronic expansion valve are reduced, the service life of the electronic expansion valve is extended, and the noise problem caused by the fluctuation of the operating state of the air conditioner can be reduced.

[0064] In another embodiment, Figure 3 As shown in the above Figure 2 Based on the embodiment shown, before step S10, the following steps are further included:

[0065] Step S30, detecting whether the start condition of the air injection enthalpy increase is met;

[0066] In this embodiment, when the air conditioner is running and the electronic expansion valve in the air conditioner's jet reheat auxiliary circuit is closed, it is possible to periodically detect whether the jet reheat opening conditions are met to confirm whether the jet reheat function needs to be turned on.

[0067] Optionally, the activation condition of the air injection enthalpy increase includes at least one of the following: (1) the air conditioner is in heating mode; (2) the outdoor ambient temperature is lower than a preset ambient temperature; (3) the exhaust temperature of the air conditioner compressor is higher than the preset exhaust temperature. When the outdoor ambient temperature is lower than the preset ambient temperature, it indicates that the outdoor ambient temperature is low, which may result in a poor heating effect of the air conditioner; and when the exhaust temperature of the air conditioner compressor is higher than the preset exhaust temperature, it indicates that the heat exchange effect of the air conditioner is poor.

[0068] Step S40: When the opening condition of the injection enthalpy increase is met, the electronic expansion valve is opened.

[0069] In this embodiment, when the corresponding opening conditions for the jet enthalpy increase circuit are detected, the electronic expansion valve of the jet enthalpy increase auxiliary circuit is opened, thereby adjusting the electronic expansion valve. When the electronic expansion valve is in the open state, the low-temperature heating performance of the air conditioner can be improved. After the electronic expansion valve of the jet enthalpy increase auxiliary circuit is opened, step S10 and its subsequent steps can be immediately executed.

[0070] Optionally, when the electronic expansion valve is in the open state, whether a closing condition corresponding to the injection enthalpy increase is satisfied may be detected. When the closing condition corresponding to the injection enthalpy increase is satisfied, the electronic expansion valve in the injection enthalpy increase auxiliary circuit is closed to stop the adjustment step for the electronic expansion valve. If the opening condition corresponding to the injection enthalpy increase is not satisfied, it may be considered that the closing condition for the injection enthalpy increase is satisfied.

[0071] In the technical solution disclosed in this embodiment, it is detected whether the opening conditions corresponding to the jet reheat enthalpy are met, and when the opening conditions are met, the electronic expansion valve in the jet reheat enthalpy auxiliary circuit is opened, and then the adjustment cycle of the electronic expansion valve is adjusted according to the superheat corresponding to the jet reheat enthalpy auxiliary circuit. The air conditioner can reach a stable state more quickly, thereby improving the low-temperature heating performance of the air conditioner.

[0072] In yet another embodiment, Figure 4 As shown, in Figures 2 to 3 Based on any embodiment, after step S20, the following steps are further included:

[0073] Step S50, obtaining the historical adjustment time point corresponding to the last adjustment of the electronic expansion valve;

[0074] Step S60, determining a target adjustment time point of the electronic expansion valve according to the adjusted adjustment cycle and historical adjustment time points;

[0075] In this embodiment, after adjusting the regulation period of the electronic expansion valve in the jet enthalpy increase auxiliary circuit based on the superheat corresponding to the jet enthalpy increase auxiliary circuit, the historical regulation time point corresponding to the last regulation of the electronic expansion valve is obtained, and a target regulation time point corresponding to the electronic expansion valve in the jet enthalpy increase auxiliary circuit is determined based on the adjusted regulation period and the historical regulation time point. The target regulation time point is the time point for the current regulation of the electronic expansion valve. For example, after the opening condition corresponding to the jet enthalpy increase is met, the electronic expansion valve is opened, and the regulation period corresponding to the electronic expansion valve is adjusted based on the superheat corresponding to the jet enthalpy increase auxiliary circuit. The opening time point of the electronic expansion valve can be used as the historical regulation time point corresponding to the last regulation of the electronic expansion valve. The historical regulation time point is then added to the adjusted regulation period to obtain the target regulation time point corresponding to the current regulation of the electronic expansion valve, and the target regulation time point is stored. It is understood that the target regulation time point is a future moment.

[0076] Step S70, when the target adjustment time point is reached, adjusting the opening of the electronic expansion valve;

[0077] Step S80, returning to the step of obtaining the superheat of the air conditioner's injection enthalpy increase auxiliary path.

[0078] In this embodiment, when the target adjustment time is reached, the opening of the electronic expansion valve is adjusted once, and then the process returns to the step of obtaining the superheat of the air conditioner's jet enthalpy increase auxiliary circuit to readjust the adjustment cycle corresponding to the electronic expansion valve and re-determine the target adjustment time for the next adjustment of the electronic expansion valve. It should be noted that the step of obtaining the superheat of the air conditioner's jet enthalpy increase auxiliary circuit can be performed immediately after adjusting the opening of the electronic expansion valve once, rather than being performed periodically.

[0079] Optionally, when adjusting the opening of the electronic expansion valve in the jet reheat increasing auxiliary circuit, the current superheat corresponding to the jet reheat increasing auxiliary circuit and the historical superheat corresponding to the last adjustment of the electronic expansion valve in the jet reheat increasing auxiliary circuit can be obtained first, and the opening adjustment value of the electronic expansion valve when adjusting this time can be determined based on the current superheat and the historical superheat.

[0080] Optionally, when determining the opening adjustment value for the current electronic expansion valve adjustment based on the current superheat and the historical superheat, a first adjustment value corresponding to the current superheat and a second adjustment value corresponding to the historical superheat can be obtained, and the difference between the first adjustment value and the second adjustment value is used as the opening adjustment value for the current electronic expansion valve adjustment. In this way, the opening adjustment of the electronic expansion valve can quickly bring the actual superheat of the injection enthalpy increase auxiliary circuit to a preset superheat, allowing the air conditioner to reach a stable state as quickly as possible. The opening adjustment value is the change in the opening value during the current electronic expansion valve adjustment.

[0081] In the technical solution disclosed in this embodiment, the target adjustment time point corresponding to the current adjustment of the electronic expansion valve is determined based on the historical adjustment time point corresponding to the last adjustment of the electronic expansion valve and the adjusted adjustment period, and the adjustment period corresponding to the electronic expansion valve is readjusted after this adjustment, thereby achieving continuous adjustment of the adjustment period corresponding to the electronic expansion valve, allowing the air conditioner to reach a stable state more quickly and improving the low-temperature heating effect of the air conditioner.

[0082] In yet another embodiment, Figure 5 As shown, in Figures 2 to 4 Based on any embodiment, step S20 includes:

[0083] Step S21, obtaining the opening change value of the electronic expansion valve when the electronic expansion valve was last adjusted;

[0084] Step S22, obtaining a preset cycle corresponding to the superheat degree;

[0085] Step S23, correcting the preset period according to the opening change value, wherein the larger the opening change value is, the smaller the corrected preset period is;

[0086] Step S24: adjusting the regulation period of the electronic expansion valve to the corrected preset period.

[0087] In this embodiment, when adjusting the regulation cycle of the electronic expansion valve according to the superheat corresponding to the jet enthalpy increase auxiliary circuit, the adjustment cycle of the electronic expansion valve can also be determined in combination with the change in the opening degree of the electronic expansion valve when the electronic expansion valve was last adjusted. This can make the adjusted regulation cycle more appropriate and allow the air conditioner to reach a stable state more quickly. For example, a preset cycle corresponding to the superheat corresponding to the jet enthalpy increase auxiliary circuit can be obtained, and a cycle correction value corresponding to the change in the opening degree of the electronic expansion valve when the electronic expansion valve was last adjusted can be obtained. The preset cycle corresponding to the superheat can be corrected based on the cycle correction value, and the regulation cycle of the electronic expansion valve can be adjusted to the corrected preset cycle. The preset cycle corresponding to the superheat can be Figure 2 The preset period corresponding to the superheat range of the superheat degree in the embodiment can also be Figure 2 In the embodiment, the regulation period is adjusted according to the period adjustment value corresponding to the difference between the superheat degree and the preset superheat degree. It should be noted that the correspondence between the opening change value and the period correction value can be set in advance based on experience.

[0088] Optionally, since the last time the electronic expansion valve was adjusted, the greater the change in the opening of the electronic expansion valve, the greater the rate at which the actual superheat of the jet enthalpy increase auxiliary circuit approaches the target superheat, the preset period corrected according to the opening change value is generally smaller, so that the opening of the electronic expansion valve can be adjusted multiple times within a longer period of time, and the air conditioner can reach a stable state as soon as possible.

[0089] In the technical solution disclosed in this embodiment, the adjustment cycle corresponding to the electronic expansion valve is comprehensively adjusted based on the opening change value of the electronic expansion valve in the jet enthalpy increase auxiliary circuit and the superheat when the electronic expansion valve was last adjusted, so that the adjustment of the adjustment cycle corresponding to the electronic expansion valve is more accurate.

[0090] In addition, an embodiment of the present invention also proposes an air conditioner, which includes: a memory, a processor, and an air conditioner control program stored on the memory and runnable on the processor. When the air conditioner control program is executed by the processor, the steps of the air conditioner control method described in the above embodiments are implemented.

[0091] In addition, an embodiment of the present invention further provides a computer storage medium on which a control program for an air conditioner is stored. When the control program for the air conditioner is executed by a processor, the steps of the air conditioner control method described in the above embodiments are implemented.

[0092] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

[0093] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0094] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0095] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that: The control method of the air conditioner comprises the following steps: Obtaining a superheat degree of an air-injection enthalpy-increasing auxiliary circuit of the air conditioner, wherein the air-injection enthalpy-increasing auxiliary circuit is provided with an electronic expansion valve; adjusting the regulation cycle of the electronic expansion valve according to the superheat; the superheat being the difference between the refrigerant temperature at the economizer outlet and the refrigerant temperature at the economizer inlet; After the step of adjusting the regulation period of the electronic expansion valve according to the superheat, the method further includes: Obtaining a historical adjustment time point corresponding to the last adjustment of the electronic expansion valve; determining a target adjustment time point of the electronic expansion valve according to the adjusted adjustment cycle and the historical adjustment time point; When the target adjustment time point is reached, adjusting the opening of the electronic expansion valve; Returning to the step of obtaining the superheat of the air conditioner's injection enthalpy increase auxiliary path; The step of adjusting the opening of the electronic expansion valve includes: Obtaining a first adjustment value corresponding to the superheat and a second adjustment value corresponding to the historical superheat when the electronic expansion valve was last adjusted, and using the difference between the first adjustment value and the second adjustment value as the opening adjustment value when adjusting the electronic expansion valve this time; The electronic expansion valve is adjusted according to the opening adjustment value.

2. The air conditioner control method according to claim 1, wherein: The step of adjusting the regulation period of the electronic expansion valve according to the superheat comprises: determining a superheat range within which the superheat falls; Obtaining a preset period corresponding to the superheat range; The regulation period of the electronic expansion valve is adjusted to the preset period.

3. The air conditioner control method according to claim 1, wherein: The step of adjusting the regulation period of the electronic expansion valve according to the superheat comprises: Obtaining a difference between the superheat degree and a preset superheat degree; Obtaining a period adjustment value corresponding to the difference; The regulation period of the electronic expansion valve is adjusted according to the period adjustment value, wherein the greater the absolute value of the difference is, the smaller the regulation period after adjustment is.

4. The air conditioner control method according to claim 1, wherein: The control method of the air conditioner further includes: Check whether the start-up conditions for jet enthalpy increase are met; When the opening condition of the injection enthalpy increase is met, the electronic expansion valve is opened, and the step of obtaining the superheat of the injection enthalpy increase auxiliary path of the air conditioner is performed.

5. The air conditioner control method according to claim 4, wherein: The start-up conditions of the air injection enthalpy increase include at least one of the following: The air conditioner is in heating mode; The outdoor ambient temperature is lower than the preset ambient temperature; The exhaust temperature of the compressor of the air conditioner is greater than a preset exhaust temperature.

6. The air conditioner control method according to claim 1, wherein: The step of adjusting the regulation period of the electronic expansion valve according to the superheat comprises: Obtaining a change in the opening degree of the electronic expansion valve when the electronic expansion valve was last adjusted; Obtaining a preset period corresponding to the superheat degree; Modifying the preset period according to the opening change value, wherein the larger the opening change value is, the smaller the modified preset period is; The regulation period of the electronic expansion valve is adjusted to the corrected preset period.

7. An air conditioner, characterized in that: The air conditioner includes: a memory, a processor, and an air conditioner control program stored in the memory and executable on the processor. When the air conditioner control program is executed by the processor, the steps of the air conditioner control method according to any one of claims 1 to 6 are implemented.

8. A computer storage medium, characterized in that The computer storage medium stores a control program for the air conditioner, and when the control program for the air conditioner is executed by the processor, the steps of the control method for the air conditioner according to any one of claims 1 to 6 are implemented.

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