Control method of air conditioner, air conditioner and storage medium

Abstract

The invention discloses a control method of an air conditioner, the air conditioner and a storage medium, and relates to the technical field of air conditioners. According to the environment temperature, the starting duration of the starting stage of a compressor in the air conditioner and the corresponding starting frequency are determined; and the compressor is controlled to be started according to the starting frequency and the starting duration. The energy efficiency of the compressor in the starting stage and the operation stability of the compressor are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, and particularly to a control method of an air conditioner, the air conditioner, and a storage medium. BACKGROUND

[0002] When the air conditioner is running, the compressor drives the refrigerant to circulate in the refrigerant pipeline, and exchanges heat with indoor air when passing through the indoor heat exchanger to adjust the indoor environment.

[0003] In the related art, when the compressor is started, the frequency is generally increased to the starting frequency within the starting time, and then the compressor is run at the frequency required by the actual load. Since the starting frequency is generally determined according to the environmental temperature, the starting time is generally a fixed parameter set in advance, and the frequency increasing speed of the compressor is limited, which may cause the actual running time of the compressor at the starting frequency to be too short or even unable to run at the starting frequency in the starting stage, and may cause the problems of poor energy efficiency of the compressor and unstable running of the compressor. SUMMARY

[0004] The main purpose of the present application is to provide a control method of an air conditioner, the air conditioner, and a storage medium, which aims to improve the energy efficiency and running stability of the compressor in the starting stage.

[0005] To achieve the above purpose, the present application provides a control method of an air conditioner, which comprises the following steps:

[0006] obtaining an environmental temperature of an environment where the air conditioner is located;

[0007] determining a starting time and a corresponding starting frequency of a starting stage of a compressor in the air conditioner according to the environmental temperature;

[0008] controlling the compressor to start according to the starting frequency and the starting time.

[0009] In an embodiment, the environmental temperature comprises an indoor environmental temperature and an outdoor environmental temperature, and the step of determining the starting time and the corresponding starting frequency of the starting stage of the compressor in the air conditioner according to the environmental temperature comprises:

[0010] determining the starting time of the starting stage of the compressor according to the indoor environmental temperature; and determining the starting frequency according to the indoor environmental temperature, the outdoor environmental temperature, and the starting time.

[0011] In an embodiment, the step of determining the starting time of the starting stage of the compressor according to the indoor environmental temperature comprises:

[0012] determining a temperature difference value between the indoor environment temperature and a set temperature of the air conditioner; determining the start-up duration according to the temperature value and a target temperature adjusting rate.

[0013] In an embodiment, the step of determining the start-up frequency according to the indoor environment temperature, the outdoor environment temperature and the start-up duration comprises:

[0014] determining a total load of the start-up phase according to the indoor environment temperature and the outdoor environment temperature;

[0015] determining a target heat exchange capacity of the air conditioner according to a ratio of the total load and the start-up duration;

[0016] determining the start-up frequency according to the target heat exchange capacity.

[0017] In an embodiment, the step of determining a total load of the start-up phase according to the indoor environment temperature and the outdoor environment temperature comprises:

[0018] determining a heat storage load of the indoor space according to a first temperature difference between the indoor environment temperature and a set temperature of the air conditioner and a room heat capacity of an indoor space regulated by the air conditioner; determining a heat transfer load of the indoor space according to a second temperature difference between the outdoor environment temperature and the set temperature of the air conditioner and the start-up duration;

[0019] determining a sum of the heat storage load and the heat transfer load as the total load.

[0020] In an embodiment, before the step of determining a heat storage load of the indoor space according to a first temperature difference between the indoor environment temperature and a set temperature of the air conditioner and a room heat capacity of an indoor space regulated by the air conditioner, the method further comprises:

[0021] controlling a compressor in the air conditioner to operate at a rated frequency for a preset duration, obtaining indoor environment state parameters of an indoor space regulated by the air conditioner and corresponding outdoor environment state parameters within the preset duration;

[0022] determining the room heat capacity according to the indoor environment state parameters and the outdoor environment state parameters.

[0023] In an embodiment, the indoor environment state parameters comprise an indoor temperature change value and an indoor characteristic temperature, the outdoor environment state parameters comprise an outdoor characteristic temperature, and the step of determining the room heat capacity according to the indoor environment state parameters and the outdoor environment state parameters comprises:

[0024] determining a heat transfer amount of the indoor space within the preset duration according to an indoor-outdoor temperature difference between the outdoor characteristic temperature and the indoor characteristic temperature.

[0025] determining a heat storage amount of the indoor space in the preset time length according to a difference between a total heat exchange amount corresponding to the rated frequency in the preset time length and the heat transfer amount;

[0026] determining the room heat capacity according to the heat storage amount and the indoor temperature change value.

[0027] In an embodiment, the step of determining the start frequency according to the heat exchange capacity comprises:

[0028] determining the start frequency according to a calculation result of substituting the heat exchange capacity into a preset relationship formula; wherein the preset relationship formula is Q=a*F 2 +b F, Q is the heat exchange capacity, F is the start frequency, and a and b are preset coefficients.

[0029] In addition, to achieve the above-mentioned purpose, the present application also proposes an air conditioner, which comprises a control device and a compressor, the compressor is in communication connection with the control device, and the control device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the control method of the air conditioner as described above.

[0030] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the control method of the air conditioner as described above.

[0031] The one or more technical solutions proposed by the present application have at least the following technical effects: the start length and the start frequency of the compressor are determined adaptively according to the ambient temperature of the environment where the air conditioner is located, the compressor is controlled based on the determined start length and start frequency, frequency oscillation caused by the fixed start length leading to poor energy efficiency of the compressor during the start phase and unsmooth frequency transition with the subsequent phase can be avoided, and the energy efficiency during the start phase of the compressor and the stability of the compressor are effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and serve to explain the principles of the present application together with the specification.

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0034] Figure 1 Fig. 1 is a schematic diagram of a refrigerant system structure of an air conditioner according to an embodiment of the control method of the air conditioner;

[0035] Figure 2 Fig. 2 is a schematic diagram of a device structure of a hardware operating environment according to the control method of the air conditioner;

[0036] Figure 3 Fig. 3 is a flowchart of an embodiment of the control method of the air conditioner;

[0037] Figure 4 Fig. 4 is a flowchart of another embodiment of the control method of the air conditioner;

[0038] Figure 5 Fig. 5 is a schematic diagram of changes in heat storage load and heat transfer load after the compressor is started according to the control method of the air conditioner;

[0039] Figure 6 Fig. 6 is a flowchart of a third embodiment of the control method of the air conditioner.

[0040] The purposes, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0041] It should be understood that the specific embodiments described herein are merely intended to explain the technical solutions of the present application, and are not intended to limit the present application.

[0042] In order to better understand the technical solutions of the present application, the specific embodiments will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] The main solution of the embodiments of the present application is to obtain an ambient temperature of an environment in which an air conditioner is located; determine a startup duration and a corresponding startup frequency of a startup phase of a compressor in the air conditioner according to the ambient temperature; and control the compressor to start up according to the startup frequency and the startup duration.

[0044] In the present embodiment, the air conditioner is taken as the execution subject for the convenience of description.

[0045] In the related art, the compressor generally increases the frequency to reach the startup frequency within the startup duration and then operates at the frequency required by the actual load after startup, since the startup frequency is generally determined according to the ambient temperature and the startup duration is generally a fixed parameter set in advance. However, the frequency increasing speed of the compressor is limited, which may result in that the actual operation duration of the compressor at the startup frequency is too short or even the compressor cannot operate at the startup frequency during the startup phase, and the problems of poor energy efficiency of the compressor and unstable operation of the compressor due to the frequency transition between the startup phase and the subsequent phase.

[0046] The application provides the above-mentioned solutions, the compressor starting time and the starting frequency are determined according to the ambient temperature of the environment where the air conditioner is located, the compressor is controlled to start based on the determined starting time and starting frequency, frequency oscillation caused by the fixed starting time, poor energy efficiency in the compressor starting stage and unsmooth frequency transition in the subsequent stage can be avoided, and the energy efficiency in the compressor starting stage and the compressor operation stability are effectively improved.

[0047] The application provides an air conditioner. The air conditioner can be any type of air conditioner, such as a wall-mounted air conditioner, a floor-standing air conditioner, a window air conditioner, a ceiling-mounted air conditioner, and a multi-connected air conditioner.

[0048] In the embodiment, referring to Figure 1 , the air conditioner comprises a compressor 1, an indoor heat exchanger 2, a throttling device 3, and an outdoor heat exchanger 4 connected in sequence.

[0049] The indoor heat exchanger 2 is correspondingly provided with an indoor fan 5, which can drive indoor air to exchange heat with the indoor heat exchanger 2. The outdoor heat exchanger 4 is correspondingly provided with an outdoor fan 6, which can drive outdoor air to exchange heat with the outdoor heat exchanger 4.

[0050] In one implementation, the discharge port of the compressor 1, the indoor heat exchanger 2, the throttling device 3, the outdoor heat exchanger 4, and the gas return port of the compressor 1 are connected in sequence. When the compressor 1 is turned on, the refrigerant discharged by the compressor 1 flows back to the compressor 1 through the indoor heat exchanger 2, the throttling device 3, and the outdoor heat exchanger 4 in sequence, and the indoor heat exchanger 2 is in a condensing state.

[0051] In another implementation, the discharge port of the compressor 1, the outdoor heat exchanger 4, the throttling device 3, the indoor heat exchanger 2, and the gas return port of the compressor 1 are connected in sequence. When the compressor 1 is turned on, the refrigerant discharged by the compressor 1 flows back to the compressor 1 through the outdoor heat exchanger 4, the throttling device 3, and the indoor heat exchanger 2 in sequence, and the indoor heat exchanger 2 is in an evaporating state.

[0052] In another implementation, referring to Figure 1The air conditioner further comprises a reversing assembly 7 (such as a four-way valve or the like), the discharge port of the compressor 1, the suction port of the compressor 1, the indoor heat exchanger 2, and the outdoor heat exchanger 4 are all connected to the reversing assembly 7, the reversing assembly 7 has a first operating state and a second operating state, when the reversing assembly 7 operates in the first operating state, the discharge port of the compressor 1 is communicated with the outdoor heat exchanger 4 and the suction port of the compressor 1 is communicated with the indoor heat exchanger 2, when the compressor 1 is turned on, the refrigerant discharged by the compressor 1 flows through the outdoor heat exchanger 4, the throttling device 3 and the indoor heat exchanger 2 in sequence and then flows back to the compressor 1, and the indoor heat exchanger 2 is in an evaporation state; when the reversing assembly 7 operates in the second operating state, the discharge port of the compressor 1 is communicated with the indoor heat exchanger 2 and the suction port of the compressor 1 is communicated with the outdoor heat exchanger 4, when the compressor 1 is turned on, the refrigerant discharged by the compressor 1 flows through the indoor heat exchanger 2, the throttling device 3 and the outdoor heat exchanger 4 in sequence and then flows back to the compressor 1, and the indoor heat exchanger 2 is in a condensation state.

[0053] In an implementable embodiment, referring to Figure 2 The air conditioner further comprises an environment detection module 8 configured to detect an environmental state parameter of an environment in which the air conditioner is located, the environmental state parameter can include at least one of a temperature parameter, a humidity parameter, a dew point temperature, and an air enthalpy value. The environment detection module 8 can be arranged in an indoor space regulated by the air conditioner and / or an outdoor environment corresponding to the air conditioner.

[0054] Referring to Figure 2 The air conditioner further comprises a control device 100, the compressor 1 and the environment detection module 8 are in communication connection with the control device 100.

[0055] The control device 100 comprises at least one processor 1001, and a memory 1002 and a timer 1003 in communication connection with the at least one processor 1001; the memory 1002 stores instructions executable by the at least one processor 1001, and the instructions are executed by the at least one processor 1001 to enable the at least one processor 1001 to execute the control method of the air conditioner in the following embodiments.

[0056] The following refers to Figure 2The diagram illustrates a structural schematic suitable for implementing the control device 100 in the embodiments of this application. The control device 100 in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 2 The control device 100 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0057] like Figure 2 As shown, the control device 100 may include a processor 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in memory 1002. The program in memory 1002 may be a program in read-only memory (ROM) or a program loaded from a storage device into random access memory (RAM). The RAM also stores various programs and data required for the operation of the control device 100. The processor 1001 and memory 1002 (ROM and RAM) are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus. Typically, the following systems can be connected to the I / O interface: input devices including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices including, for example, magnetic tapes, hard disks, etc.; and communication devices. The communication device allows the control device 100 to communicate wirelessly or wiredly with other devices to exchange data. Although the control unit 100 with various systems is shown in the figure, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have alternatively.

[0058] In particular, according to the embodiments disclosed in the present application, the method flow described in the following embodiments can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product comprising a computer program carried on a computer readable medium, the computer program comprising program code for executing the method shown in the flow chart. In such embodiments, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device. When the computer program is executed by the processor 1001, the above-mentioned functions defined in the control method of the air conditioner of the embodiments disclosed in the present application are performed.

[0059] The air conditioner provided in the present application adopts the control method of the air conditioner in the following embodiments, which can solve the technical problem of how to improve the energy efficiency and the stability of the compressor during the starting phase. Compared with the prior art, the air conditioner provided in the present application has the same beneficial effects as the control method of the air conditioner provided in the following embodiments, and other technical features in the air conditioner are the same as the features disclosed in the method of the following embodiments, which will not be described here.

[0060] It should be noted that the execution subject of the present embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device, an air conditioner, etc. capable of realizing the above functions. The following will take the air conditioner as an example to describe the present embodiment and the following embodiments.

[0061] Based on this, the embodiments of the present application provide a control method of an air conditioner, which refers to Figure 3 , Figure 3 The flowchart of the control method of the air conditioner of the first embodiment of the present application is shown in the following.

[0062] In the present embodiment, the control method of the air conditioner comprises steps S10-S30:

[0063] Step S10, obtaining an environment temperature of an environment where the air conditioner is located;

[0064] The environment temperature includes an indoor environment temperature and / or an outdoor environment temperature.

[0065] Among them, steps S10, S20 and S30 can be executed in response to the starting instruction of the compressor. Alternatively, steps S10 and S20 can be executed after receiving the starting instruction of the compressor, and then step S30 is executed in response to the starting instruction of the compressor.

[0066] Step S20, determining a starting duration and a corresponding starting frequency of the starting phase of the compressor in the air conditioner according to the environment temperature;

[0067] The starting duration is the total duration of the starting phase.

[0068] The starting frequency is a target value of the required operating frequency of the compressor in the starting stage.

[0069] Different ambient temperatures correspond to different starting durations and starting frequencies.

[0070] In an implementation manner, the starting duration can be determined according to the ambient temperature, and the starting frequency can be determined according to the starting duration. The starting frequency can be determined according to the starting duration and the ambient temperature.

[0071] In another implementation manner, a temperature interval in which the ambient temperature is located is determined, a duration associated with the temperature interval is taken as the starting duration, and a frequency associated with the temperature interval is taken as the starting frequency.

[0072] In step S30, the starting of the compressor is controlled according to the starting frequency and the starting duration.

[0073] The starting of the compressor is controlled, and a timing duration is obtained. After the compressor is controlled to increase the frequency to the starting frequency at a target frequency increasing rate and is maintained at the starting frequency until the timing duration is greater than or equal to the starting duration, the compressor is controlled to operate according to a target frequency corresponding to a temperature difference between the indoor temperature of the air conditioner and a set temperature.

[0074] The embodiment provides a control method of an air conditioner. The starting duration and the starting frequency of the compressor are determined according to the ambient temperature of an environment in which the air conditioner is located. The starting of the compressor is controlled based on the determined starting duration and starting frequency. The fixed starting duration can be avoided to cause poor energy efficiency of the compressor in the starting stage and frequency oscillation caused by unsmooth frequency transition in a subsequent stage. The energy efficiency of the compressor in the starting stage and the operating stability of the compressor are effectively improved.

[0075] Based on any of the above embodiments, in the second embodiment of the present application, the same or similar contents as the above embodiments can be referred to the above introduction, and will not be described in detail. On this basis, please refer to Figure 4 The ambient temperature includes an indoor ambient temperature and an outdoor ambient temperature. The step of determining the starting duration and the corresponding starting frequency of the starting stage of the compressor in the air conditioner according to the ambient temperature includes:

[0076] In step S21, the starting duration is determined according to the indoor ambient temperature.

[0077] Different indoor ambient temperatures correspond to different starting durations. When the target heat exchange mode of the air conditioner is a cooling mode, the starting duration is positively correlated with the indoor ambient temperature. When the target heat exchange mode of the air conditioner is a heating mode, the starting duration is negatively correlated with the indoor ambient temperature.

[0078] In this embodiment, the temperature difference between the indoor ambient temperature and the set temperature of the air conditioner is determined; the start-up duration is determined based on the temperature value and the target temperature adjustment rate.

[0079] Here, the temperature difference value is the absolute value of the difference between the indoor ambient temperature and the set temperature. Alternatively, in heating mode, the temperature difference value is the difference between the set temperature and the indoor ambient temperature, and in cooling mode, the temperature difference value is the difference between the indoor ambient temperature and the set temperature.

[0080] In this embodiment, the target temperature adjustment rate is the target rate of change of the indoor space temperature regulated by the air conditioner during the startup phase. In heating mode, the target temperature adjustment rate is the target heating rate, and in cooling mode, the target temperature adjustment rate is the target cooling rate. The target temperature adjustment rate can be a preset fixed value, or it can be a parameter value determined according to the actual operating conditions of the air conditioner. For example, it can be determined based on the temperature difference between the indoor and outdoor ambient temperatures and / or the temperature difference between the indoor ambient temperature and the set temperature.

[0081] In this embodiment, a preset relationship is established between the target temperature regulation rate, the temperature difference value, and the start-up time. The start-up time is calculated by substituting the target temperature regulation rate and the temperature difference value into the preset relationship. In some implementations, a first interval containing the target temperature regulation rate and a temperature difference interval containing the temperature difference value can also be determined, and the start-up frequency can be determined based on the first interval and the temperature difference interval.

[0082] Step S22: Determine the startup frequency based on the indoor ambient temperature, the outdoor ambient temperature, and the startup duration.

[0083] In one implementation, a first relationship between indoor ambient temperature, outdoor ambient temperature, and startup duration can be established in advance. Then, the startup frequency can be calculated by substituting the indoor ambient temperature, outdoor ambient temperature, and startup duration into the first relationship.

[0084] In another implementation, the total load of the air conditioner during the startup phase can be determined based on the indoor and outdoor ambient temperatures, and the startup frequency can be determined based on the total load and startup duration.

[0085] In another implementation, the reference frequency for the compressor to start within a preset time period can be determined based on the indoor and outdoor ambient temperatures, and the starting frequency can be obtained by correcting the reference frequency based on the relationship between the preset time period and the starting time period.

[0086] In this embodiment, the compressor start-up time is set according to the heat exchange requirements of the indoor environment, which helps to improve the operating energy efficiency of the air conditioner during the start-up phase. The start-up frequency is determined according to the indoor and outdoor ambient temperatures and the start-up time, which helps to ensure that the start-up frequency can be accurately matched with the actual load of the air conditioner and that the compressor has enough time to ramp up to the start-up frequency within the start-up time. This ensures that the compressor does not run at the start-up frequency for too short a time and that the compressor start-up frequency is not too high. This ensures a smoother transition of the compressor frequency after the start-up phase and avoids frequency oscillation of the compressor. Thus, it effectively ensures that the operating energy efficiency of the air conditioner during the compressor start-up phase is improved while also effectively improving the operating stability and reliability of the compressor.

[0087] In other embodiments, the indoor temperature range where the indoor ambient temperature is located can also be determined, and the start-up time can be determined based on the indoor temperature range.

[0088] In one feasible implementation, the step of determining the startup frequency based on the indoor ambient temperature, the outdoor ambient temperature, and the startup duration includes: determining the total load of the startup phase based on the indoor ambient temperature and the outdoor ambient temperature; determining the target heat exchange capacity of the air conditioner based on the ratio of the total load to the startup duration; and determining the startup frequency based on the target heat exchange capacity.

[0089] The total load includes heat storage load and heat transfer load. Heat storage load is the air conditioning load generated by the heat exchange demand due to excessively high or low indoor temperatures. Heat transfer load is the air conditioning load generated by the temperature difference or enthalpy difference between indoor and outdoor spaces. (Combined) Figure 5 The set temperature is the target temperature that the air in the indoor space needs to reach. In the cooling mode, as the indoor ambient temperature (return air temperature in the figure) decreases, the heat storage load of the indoor space continuously decreases while the heat transfer load continuously increases until the temperature of the indoor space (return air temperature in the figure) reaches the set temperature.

[0090] One method for determining the total load is to determine the heat storage load based on the indoor ambient temperature, the heat transfer load based on the outdoor ambient temperature, and the total load based on the heat storage load and the heat transfer load. Another method involves pre-establishing a calculation formula relating the indoor and outdoor ambient temperatures to the total load, and then substituting the indoor and outdoor ambient temperatures into this formula to calculate the total load.

[0091] The target heat exchange capacity refers to the amount of heat (cooling or heating) required by the compressor per unit time during the start-up phase. In this embodiment, the target heat exchange capacity is determined as the ratio of the total load to the start-up duration. In some implementations, the target heat exchange capacity can also be obtained by correcting the ratio with a correction factor.

[0092] Different target heat exchange capacities correspond to different start-up frequencies. In this embodiment, to improve the accuracy of the start-up frequency, a preset relationship between heat exchange capacity and start-up frequency is established in advance. The start-up frequency is determined based on the calculation result of substituting the heat exchange capacity into the preset relationship. For example, the preset relationship is Q = a * F. 2 +b F, where Q is the heat exchange capacity, F is the start-up frequency, and a and b are preset coefficients, where a is less than 0 and b is greater than 0. Based on this, substituting Q into the preset relationship yields F. If there are two solutions for F, the solution within the compressor's allowed operating frequency range is determined as the start-up frequency. If there are two solutions within the compressor's allowed operating frequency range, the smaller of the two solutions is determined as the start-up frequency. The a and b values ​​corresponding to the cooling mode differ from those corresponding to the heating mode, and these preset coefficients can be determined based on the target heat exchange mode of the air conditioner.

[0093] In this embodiment, by determining the starting frequency as described above, it is beneficial to ensure that the starting frequency is not too high or too low, and to ensure that the load demand is met while preventing frequency oscillation at the end of the starting phase, thereby effectively improving the energy efficiency of the air conditioner and the stability of the compressor operation.

[0094] In other embodiments, the first heat exchange capacity required by the air conditioner's heat storage load can be determined based on the indoor ambient temperature and startup time, the second heat exchange capacity required by the air conditioner's heat transfer load can be determined based on the outdoor ambient temperature and startup time, and the target heat exchange capacity can be determined based on the first heat exchange capacity and the second heat exchange capacity.

[0095] In other embodiments, at least two capacity parameter ranges and corresponding preset frequencies can be preset to determine the capacity parameter range in which the heat exchange capacity is located, and the preset frequency associated with the capacity parameter range can be used as the start-up frequency.

[0096] In one feasible implementation, the step of determining the total load of the start-up phase based on the indoor ambient temperature and the outdoor ambient temperature includes: determining the heat storage load of the indoor space based on a first temperature difference between the indoor ambient temperature and the set temperature of the air conditioner and the room heat capacity of the indoor space regulated by the air conditioner; determining the heat transfer load of the indoor space based on a second temperature difference between the outdoor ambient temperature and the set temperature of the air conditioner and the start-up duration; and determining the sum of the heat storage load and the heat transfer load as the total load.

[0097] The room heat capacity can be a pre-set fixed parameter or a parameter obtained from the actual operation of the air conditioner.

[0098] The first temperature difference is the absolute value of the difference between the indoor ambient temperature and the set temperature. Alternatively, in cooling mode, the first temperature difference is the difference between the indoor ambient temperature and the set temperature, and in heating mode, the first temperature difference is the difference between the set temperature and the indoor ambient temperature.

[0099] In cooling mode, the heat storage load is the amount of cooling required to lower the indoor space from its current temperature to the set temperature. In heating mode, the heat storage load is the amount of heating required to raise the indoor space from its current temperature to the set temperature.

[0100] In this embodiment, the heat storage load is the product of the first temperature difference and the room's heat capacity. In other implementations, the heat storage load can also be obtained by adjusting the product of the first temperature difference and the room's heat capacity using a load correction value.

[0101] The second temperature difference is the absolute value of the difference between the outdoor ambient temperature and the set temperature. Alternatively, in cooling mode, the second temperature difference is the difference between the outdoor ambient temperature and the set temperature, and in heating mode, the second temperature difference is the difference between the set temperature and the outdoor ambient temperature.

[0102] In this embodiment, the heat transfer load is determined based on the air conditioner's rated heat exchange capacity (rated cooling capacity in cooling mode, rated heating capacity in heating mode), the second temperature difference, and the start-up time. Specifically, the unit heat transfer rate between indoor and outdoor areas per unit time can be determined based on the rated heat exchange capacity and the second temperature difference; the product of the unit heat transfer rate and the start-up time is the heat transfer load. For example, the relationship between the heat transfer load, the second temperature difference, and the start-up time in cooling mode is as follows: The relationship between heat transfer load, second temperature difference, and start-up time in heating mode is as follows: Where τ is the startup duration, Q trans For heat transfer load, Q ful,c (35) is the rated heat exchange capacity of the air conditioner, T s To set the temperature, T4 represents the outdoor ambient temperature, and T4-T s or T s -T4 is the second temperature difference, and c, d, e, and f are all preset constants.

[0103] In this embodiment, the heat storage load is determined based on the first temperature difference between the indoor ambient temperature and the set temperature, and the heat transfer load is determined based on the second temperature difference between the outdoor ambient temperature and the set temperature and the start-up time. The total load during the start-up phase is determined by combining the heat storage load and the heat transfer load. The compressor start-up frequency is determined according to the total load. In the process of determining the heat transfer load, the temperature difference between the outdoor ambient temperature and the indoor ambient temperature is not used. Instead, the outdoor ambient temperature, the set temperature and the start-up time are combined. This is beneficial to ensure that when the compressor runs at the start-up frequency, the indoor temperature can change towards the set temperature more quickly during the start-up phase, thereby further improving the operating energy efficiency of the air conditioner and the comfort of the indoor temperature.

[0104] In other embodiments, the heat transfer load may also be determined based on the temperature difference between the outdoor ambient temperature and the indoor ambient temperature.

[0105] Based on any of the above embodiments, in the third embodiment of this application, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 6 The ambient temperature includes indoor ambient temperature and outdoor ambient temperature. Before the step of determining the heat storage load of the indoor space based on the first temperature difference between the indoor ambient temperature and the set temperature of the air conditioner and the room heat capacity of the indoor space regulated by the air conditioner, the method further includes:

[0106] Step S100: Control the compressor in the air conditioner to run at the rated frequency for a preset time, and obtain the indoor environmental state parameters and the corresponding outdoor environmental state parameters of the indoor space regulated by the air conditioner within the preset time.

[0107] The rated frequency is the preset operating frequency of the compressor.

[0108] The preset duration is the time required for the air conditioner to reach its rated heat exchange capacity when the compressor is running at its rated frequency.

[0109] During the preset time period when the compressor operates at the rated frequency, other components in the air conditioner related to heat exchange (such as the fan, throttling device, etc.) operate at the rated operating parameters corresponding to the rated frequency.

[0110] Indoor environmental status parameters may include at least one of the following: indoor temperature change value within a preset time period, indoor temperature value at different times within a preset time period, characteristic value of indoor temperature within a preset time period (average, maximum or minimum value, etc.), indoor enthalpy change value within a preset time period, indoor enthalpy value at different times within a preset time period, characteristic value of indoor enthalpy value within a preset time period, etc.

[0111] Outdoor environmental parameters may include at least one of the following: outdoor temperature change value within a preset time period, outdoor temperature value at different times within a preset time period, characteristic value of outdoor temperature within a preset time period (average, maximum, or minimum value, etc.), outdoor enthalpy change value within a preset time period, outdoor enthalpy value at different times within a preset time period, characteristic value of outdoor enthalpy value within a preset time period, etc.

[0112] Step S200: Determine the room heat capacity based on the indoor environmental state parameters and the outdoor environmental state parameters.

[0113] In one implementation, a relationship between indoor and outdoor environmental parameters and room heat capacity can be pre-established based on the rated frequency and preset duration, serving as a heat capacity calculation formula. The room heat capacity can be calculated by substituting the indoor and outdoor environmental parameters into this formula. In another implementation, the relationship between indoor and outdoor environmental parameters can be determined, and the room heat capacity can be determined based on the rated frequency, preset duration, and this relationship.

[0114] In this embodiment, the indoor environmental state parameters include indoor temperature change and indoor characteristic temperature. In cooling mode, the indoor temperature change is the difference between the indoor temperature at the beginning of the preset duration and the indoor temperature at the end of the preset duration. In heating mode, the indoor temperature change is the difference between the indoor temperature at the end of the preset duration and the indoor temperature at the beginning of the preset duration. In this embodiment, the indoor characteristic temperature is the average temperature of the indoor space within the preset duration. In other implementations, the indoor characteristic temperature may also be the maximum or minimum temperature of the indoor space within the preset duration.

[0115] In this embodiment, the outdoor environmental state parameters include the outdoor characteristic temperature, which is the average temperature of the outdoor environment within a preset time period. In other implementations, the outdoor characteristic temperature may also be the maximum or minimum temperature of the outdoor environment within a preset time period.

[0116] The process of determining the room's heat capacity based on indoor temperature change, indoor characteristic temperature, and outdoor characteristic temperature is as follows: The heat transfer of the indoor space within a preset time period is determined based on the indoor-outdoor temperature difference between the outdoor characteristic temperature and the indoor characteristic temperature; the heat storage of the indoor space within the preset time period is determined based on the difference between the total heat exchange corresponding to the rated frequency and the heat transfer; and the room's heat capacity is determined based on the heat storage and the indoor temperature change.

[0117] In cooling mode, the indoor-outdoor temperature difference is the difference between the outdoor characteristic temperature and the indoor characteristic temperature; in heating mode, the indoor-outdoor temperature difference is the difference between the indoor characteristic temperature and the outdoor characteristic temperature.

[0118] In this embodiment, the heat transfer between the indoor and outdoor environments within a preset time period is determined based on the indoor-outdoor temperature difference, the rated heat exchange capacity, and the preset time period. The rated heat exchange capacity is the heat exchanged per unit time when the compressor operates at its rated power. In heating mode, the rated heat exchange capacity is the rated heating capacity, and in cooling mode, it is the rated cooling capacity. For example, the relationship between the indoor-outdoor temperature difference, the rated heat exchange capacity, the preset time period, and the heat transfer capacity is as follows: Among them, Q trans For heat transfer, Q ful,c (35) is the rated heat exchange capacity. Outdoor characteristic temperature, Indoor characteristic temperature, The indoor and outdoor temperature difference is represented by g and h, which are preset constants.

[0119] The total heat exchange can be determined by multiplying the rated frequency by the preset duration. The difference between the total heat exchange and the heat transfer is the heat storage.

[0120] In this embodiment, the ratio of the heat storage capacity to the change in indoor temperature is the room heat capacity.

[0121] During the operation of the air conditioner, steps S100 and S200 are executed at set intervals to periodically update the room's heat capacity.

[0122] In this embodiment, since the room heat capacity is related to the size, orientation, and layout of the indoor space regulated by the air conditioner, determining the room heat capacity in the above manner helps to ensure a precise match between the room heat capacity and the actual heat capacity of the indoor space. This helps to further improve the accuracy of compressor start-up control, thereby further enhancing the operating efficiency of the air conditioner and the stability of the compressor during the compressor start-up phase.

[0123] In other embodiments, the room heat capacity can be directly calculated by substituting the indoor temperature change value and the temperature difference between the outdoor ambient temperature and the preset temperature into a preset formula.

[0124] In other embodiments, the room heat capacity can also be determined based on the change in indoor enthalpy and the average difference between outdoor and indoor enthalpy over a preset period of time.

[0125] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the control method of the air conditioner in this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0126] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the air conditioner control method of the above embodiments.

[0127] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0128] The aforementioned computer-readable storage medium may be included in the air conditioner; or it may exist independently and not be installed in the air conditioner.

[0129] The aforementioned computer-readable storage medium carries one or more programs, which, when executed by a processor, cause the processor to perform the relevant processes of the aforementioned air conditioner control method.

[0130] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0131] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the control method of the air conditioner described above. This program can solve the technical problems of improving the operating energy efficiency of the air conditioner and the operating stability of the compressor during the compressor start-up phase. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the control method of the air conditioner provided in the above embodiments, and will not be repeated here.

[0132] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0133] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. Modules described in the embodiments of this application can be implemented in software or hardware. The names of modules do not necessarily limit the specific unit itself. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0134] The above descriptions are merely some embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the content of this specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application. Therefore, the protection scope of this application should be determined by the scope of the claims.

Claims

1. A control method for an air conditioner, characterized in that, The control method for the air conditioner includes: Get the ambient temperature of the environment where the air conditioner is located; The start-up duration and corresponding start-up frequency of the compressor in the air conditioner are determined based on the ambient temperature. The compressor is started according to the start frequency and the start duration.

2. The control method for an air conditioner as described in claim 1, characterized in that, The ambient temperature includes indoor ambient temperature and outdoor ambient temperature. The step of determining the start-up duration and corresponding start-up frequency of the compressor in the air conditioner based on the ambient temperature includes: The startup duration is determined based on the indoor ambient temperature. The startup frequency is determined based on the indoor ambient temperature, the outdoor ambient temperature, and the startup duration.

3. The control method for an air conditioner as described in claim 2, characterized in that, The step of determining the startup duration based on the indoor ambient temperature includes: Determine the temperature difference between the indoor ambient temperature and the set temperature of the air conditioner; The start-up duration is determined based on the temperature value and the target temperature adjustment rate.

4. The control method for an air conditioner as described in claim 2 or 3, characterized in that, The step of determining the startup frequency based on the indoor ambient temperature, the outdoor ambient temperature, and the startup duration includes: The total load for the startup phase is determined based on the indoor ambient temperature and the outdoor ambient temperature. The target heat exchange capacity of the air conditioner is determined based on the ratio of the total load to the start-up duration. The start-up frequency is determined based on the target heat exchange capacity.

5. The control method for an air conditioner as described in claim 4, characterized in that, The step of determining the total load during the startup phase based on the indoor ambient temperature and the outdoor ambient temperature includes: The heat storage load of the indoor space is determined based on the first temperature difference between the indoor ambient temperature and the set temperature of the air conditioner and the room heat capacity of the indoor space regulated by the air conditioner. The heat transfer load of the indoor space is determined based on the second temperature difference between the outdoor ambient temperature and the set temperature of the air conditioner and the start-up time. The sum of the heat storage load and the heat transfer load is determined as the total load.

6. The control method for an air conditioner as described in claim 5, characterized in that, Before the step of determining the heat storage load of the indoor space based on the first temperature difference between the indoor ambient temperature and the set temperature of the air conditioner and the room heat capacity of the indoor space regulated by the air conditioner, the method further includes: The compressor in the air conditioner is controlled to run at a rated frequency for a preset time, and the indoor environmental state parameters and corresponding outdoor environmental state parameters of the indoor space regulated by the air conditioner within the preset time are obtained. The room heat capacity is determined based on the indoor environmental state parameters and the outdoor environmental state parameters.

7. The control method for an air conditioner as described in claim 6, characterized in that, The indoor environmental state parameters include indoor temperature change values ​​and indoor characteristic temperatures, and the outdoor environmental state parameters include outdoor characteristic temperatures. The step of determining the room heat capacity based on the indoor environmental state parameters and the outdoor environmental state parameters includes: The heat transfer of the indoor space within the preset time period is determined based on the indoor-outdoor temperature difference between the outdoor characteristic temperature and the indoor characteristic temperature. The heat storage capacity of the indoor space within the preset time period is determined based on the difference between the total heat exchange and the heat transfer corresponding to the rated frequency within the preset time period. The room's heat capacity is determined based on the heat storage capacity and the change in indoor temperature.

8. The control method for an air conditioner as described in claim 4, characterized in that, The step of determining the start-up frequency based on the heat exchange capacity includes: The start-up frequency is determined based on the calculation result obtained by substituting the heat exchange capacity into the preset formula. The preset relation is Q = a * F 2 +b F, Q is the heat exchange capacity, F is the start-up frequency, and a and b are preset coefficients.

9. An air conditioner, characterized in that, The air conditioner includes a control device and a compressor, the compressor being communicatively connected to the control device. The control device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. The computer program is configured to implement the steps of the control method for the air conditioner as described in any one of claims 1 to 8.

10. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the control method for the air conditioner as described in any one of claims 1 to 8.

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