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

Abstract

The invention discloses a control method and device of an air conditioner, the air conditioner and a storage medium, the air conditioner comprises a heat pump system and an electric heating assembly, the heat pump system comprises an air conditioner outdoor unit, at least one air conditioner indoor unit and a hot water module, the air conditioner outdoor unit is connected with the air conditioner indoor units and the hot water module, and the hot water module comprises a heating water tank, a water inlet pipe and a water outlet pipe. The electric heating assembly is used for heating the heating water tank; the method comprises the steps that when the air conditioner needs to heat water, the water tank temperature of a heating water tank and the accumulated running time of the air conditioner running a water heating mode are obtained; and when the accumulated operation duration and the water tank temperature meet the preset hot water making control condition, the working states of the heat pump system and the electric heating assembly are adjusted. By means of the mode, when the hot water making effect of the heat pump system is poor, operation of the heat pump system is adjusted in a self-adaptive mode, the operation requirement of an air conditioner indoor unit can be met while the hot water making operation effect is ensured, and the problem that the hot water making requirement and the air conditioner requirement effect conflict is solved.

Description

Technical Field

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

[0002] The multi-split one-to-many heat recovery system is equipped with air conditioner indoor units and hot water tanks. The system operation includes multiple modes and complex scenarios such as single opening and multiple opening. In special scenarios, it is easy for the condensing temperature of the system to be lower than the water tank temperature, resulting in poor heating effect of the water tank and slow heating rate. The heat pump heating effect is worse than the electric heating effect, and it will also affect the air conditioner indoor units with energy demand, resulting in a conflict between the hot water demand and the air conditioning demand. Summary of the invention

[0003] The main purpose of the present application is to provide a control method, device, air conditioner and storage medium for an air conditioner, aiming to solve the technical problem in the prior art that the operation of the heat pump system cannot be adaptively adjusted when the heat pump system has poor water heating effect.

[0004] To achieve the above-mentioned purpose, the present application proposes a control method for an air conditioner, the control method for the air conditioner is applied to the air conditioner, the air conditioner comprises: a heat pump system and an electric heating component, the heat pump system comprises an air conditioner outdoor unit, at least one air conditioner indoor unit and a hot water module, the air conditioner outdoor unit is respectively connected to each air conditioner indoor unit and the hot water module, the hot water module comprises: a hot water tank, the electric heating component is used to heat the hot water tank;

[0005] The control method of the air conditioner comprises:

[0006] When the air conditioner has a hot water energy demand, obtaining the water tank temperature of the hot water tank and the accumulated running time of the air conditioner in the hot water mode; and

[0007] When the accumulated operating time and the water tank temperature meet the preset hot water production control conditions, the working states of the heat pump system and the electric heating component are adjusted.

[0008] In one embodiment, before the step of adjusting the working states of the heat pump system and the electric heating component when the accumulated operating time and the water tank temperature meet the preset hot water production control conditions, the step further includes:

[0009] Comparing the upper water temperature of the water tank in the water tank temperature with the lower water temperature of the water tank in the water tank temperature, and determining the first water temperature and the second water temperature according to the comparison result;

[0010] Performing a difference calculation based on the first water temperature and the condensing temperature to determine a target temperature difference;

[0011] Determining a water tank temperature rise within a target time interval based on the water tank temperature and historical temperature information; and

[0012] When the accumulated running time is greater than or equal to the running time threshold, the water tank temperature rise is less than or equal to the target temperature rise, the target temperature difference is less than or equal to the temperature difference threshold, and the second water temperature is less than the first water temperature difference, it is determined that the accumulated running time and the water tank temperature meet the preset hot water control conditions.

[0013] In one embodiment, the step of determining the temperature rise of the water tank within the target time interval according to the water tank temperature and historical temperature information includes:

[0014] Determine the historical water temperature and the historical lower water temperature according to the historical temperature information;

[0015] Performing a difference calculation based on the upper water temperature of the water tank in the water tank temperature and the historical water temperature to determine the upper water temperature difference within the target time interval;

[0016] Performing a difference calculation based on the water tank lower water temperature in the water tank temperature and the historical lower water temperature to determine the lower water temperature difference within the target time interval; and

[0017] The upper water temperature difference value within the target time interval is compared with the lower water temperature difference value within the target time interval, and the water tank temperature rise within the target time interval is determined according to the comparison result.

[0018] In one embodiment, when the accumulated running time is greater than or equal to the running time threshold, the water tank temperature rise is less than or equal to the target temperature rise, the target temperature difference is less than or equal to the temperature difference threshold, and the second water temperature is less than the first water temperature difference, before the step of determining that the accumulated running time and the water tank temperature meet the preset hot water control condition, the step further includes:

[0019] Acquiring the outdoor ambient temperature and the current operating mode of the air conditioner indoor unit;

[0020] Determining a target operating time according to the outdoor ambient temperature, the current operating mode of the air conditioner indoor unit, and a threshold mapping relationship, wherein the threshold mapping relationship is used to characterize the rated operating time corresponding to each outdoor ambient temperature and each operating mode; and

[0021] A running time threshold is determined according to the target running time.

[0022] In one embodiment, when the accumulated running time is greater than or equal to the running time threshold, the water tank temperature rise is less than or equal to the target temperature rise, the target temperature difference is less than or equal to the temperature difference threshold, and the second water temperature is less than the first water temperature difference, before the step of determining that the accumulated running time and the water tank temperature meet the preset hot water control condition, the step further includes:

[0023] When the current working state of the electric heating component is the on state, the temperature rise is calculated according to the water tank volume, the heat pump heating capacity value and the electric heating power to determine the target temperature rise; and

[0024] When the current working state of the electric heating component is the off state, the temperature rise is calculated according to the water tank volume and the heating capacity value of the heat pump to determine the target temperature rise.

[0025] In one embodiment, the air conditioner outdoor unit further includes a reversing device, and the reversing device is used to adjust the refrigerant flow direction of the air conditioner;

[0026] The step of adjusting the working state of the heat pump system and the electric heating component comprises:

[0027] adjusting the connection state of the reversing device to close the refrigerant passage flowing to the hot water tank; and

[0028] Turn on the electric heating component.

[0029] In one embodiment, the air conditioner outdoor unit further includes a reversing device, and the reversing device is used to adjust the refrigerant flow direction of the air conditioner;

[0030] After the step of adjusting the working states of the heat pump system and the electric heating component when the accumulated operating time and the water tank temperature meet the preset hot water control conditions, the method further includes:

[0031] When at least one of the following conditions is met: a duration adjustment instruction is received and the adjusted operating duration corresponding to the duration adjustment instruction is a preset duration, the second water temperature is greater than or equal to the second water temperature difference, and the current water temperature under the water tank is less than or equal to the target water temperature difference, the connectivity state of the reversing device is adjusted to open the refrigerant channel flowing to the hot water tank.

[0032] In addition, to achieve the above-mentioned purpose, the present application also proposes a control device for an air conditioner, the control device for the air conditioner comprising:

[0033] an acquisition module, for acquiring the water tank temperature of the hot water tank and the accumulated running time of the air conditioner in the hot water mode when the air conditioner has a hot water energy demand; and

[0034] The adjustment module is used to adjust the working state of the heat pump system and the electric heating component when the accumulated operating time and the water tank temperature meet the preset hot water control conditions.

[0035] In addition, to achieve the above-mentioned purpose, the present application also proposes an air conditioner, which includes: a memory, a processor, and a control program of the air conditioner stored in the memory and executable on the processor, wherein the control program of the air conditioner is configured to implement the control method of the air conditioner as described above.

[0036] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which 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, the steps of the air conditioner control method described above are implemented.

[0037] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the air conditioner control method as described above are implemented.

[0038] One or more technical solutions proposed in this application, the control method of the air conditioner is applied to the air conditioner, the air conditioner includes: a heat pump system and an electric heating component, the heat pump system includes an air conditioner outdoor unit, at least one air conditioner indoor unit and a hot water module, the air conditioner outdoor unit is respectively connected to each air conditioner indoor unit and the hot water module, the hot water module includes: a hot water tank, the electric heating component is used to heat the hot water tank; the control method of the air conditioner includes: when the air conditioner has a hot water energy demand, obtaining the water tank temperature of the hot water tank and the cumulative running time of the air conditioner in the hot water mode; and when the cumulative running time and the water tank temperature meet the preset hot water control conditions, adjusting the working state of the heat pump system and the electric heating component. Through the above method, when the hot water effect of the heat pump system is poor, the operation of the heat pump system is adaptively adjusted, and while ensuring the hot water operation effect, the operation requirements of the air conditioner indoor unit can be met, solving the conflict between the hot water demand and the air conditioning demand effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0040] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0041] Figure 1 A flow chart of a control method for an air conditioner according to an embodiment of the present invention;

[0042] Figure 2 A schematic diagram of the structure of the air conditioner for this application;

[0043] Figure 3 A flow chart of a second embodiment of the air conditioner control method of the present application;

[0044] Figure 4 A schematic diagram of the module structure of the control device of the air conditioner according to the embodiment of the present application;

[0045] Figure 5 Schematic diagram of the device structure of the hardware operating environment involved in the air conditioner control method in the embodiment of the present application.

[0046] Description of Figure Numbers:

[0047] Label name Label name 1 Heat Pump System 13 Hot water module 2 Electric heating components 14 Hot water tank 11 Air conditioner outdoor unit 15 Reversing device 12 Air conditioner indoor unit

[0048] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0050] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0051] The main solution of the embodiment of the present application is: when the air conditioner has a need for hot water, the water tank temperature of the hot water tank and the cumulative operating time of the air conditioner in the hot water making mode are obtained; when the cumulative operating time and the water tank temperature meet the preset hot water making control conditions, the working status of the heat pump system and the electric heating component are adjusted.

[0052] The multi-split one-to-many heat recovery system is equipped with an air conditioner indoor unit and a hot water tank. The system operation includes multiple modes and complex scenarios such as single opening and multiple opening. In special scenarios, it is easy for the condensing temperature of the system to be lower than the water tank temperature, resulting in poor heating effect of the water tank and slow heating rate. The heat pump heating effect is worse than the electric heating effect, and it will also affect the air conditioner indoor unit with energy demand.

[0053] The present application provides a solution, which adaptively adjusts the operation of the heat pump system when the water heating effect using the heat pump system is poor. While ensuring the water heating effect, it can meet the operation requirements of the air-conditioning indoor unit, solving the conflict between the water heating demand and the air-conditioning demand.

[0054] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as an air conditioner, an air conditioner and a fresh air device, or an electronic device, an air conditioner, etc. that can realize the above functions. The following takes an air conditioner as an example to illustrate this embodiment and the following embodiments.

[0055] Based on this, the embodiment of the present application provides a control method for an air conditioner, referring to Figure 1 , Figure 1 This is a flow chart of a first embodiment of a method for controlling an air conditioner according to the present application.

[0056] In this embodiment, the air conditioner control method includes steps S10 to S20:

[0057] In this embodiment, the control method of the air conditioner is applied to the air conditioner, and the air conditioner includes: a heat pump system and an electric heating component, the heat pump system includes an air conditioner outdoor unit, at least one air conditioner indoor unit and a hot water module, the air conditioner outdoor unit is respectively connected to each air conditioner indoor unit and the hot water module, the hot water module includes: a hot water tank, and the electric heating component is used to heat the hot water tank.

[0058] In this embodiment, the air conditioner in this embodiment refers to a multi-split air conditioner. A multi-split air conditioner is an external unit connected to multiple internal units, which can realize the function of adjusting parameters such as air temperature, humidity, cleanliness and air flow rate in multiple rooms at the same time, including but not limited to cooling, heating and fresh air circulation modes.

[0059] It is understandable that the air conditioner of this embodiment is Figure 2 As shown, the air conditioner includes: a heat pump system 1 and an electric heating component 2, the heat pump system 1 includes an air conditioner outdoor unit 11, at least one air conditioner indoor unit 12 and a hot water module 13, the air conditioner outdoor unit 11 is respectively connected to each air conditioner indoor unit 12 and the hot water module 13, the hot water module 13 includes: a hot water tank 14, and the electric heating component 2 is used to heat the hot water tank 14. The air conditioner outdoor unit 11 also includes a reversing device 15, and the reversing device 15 is used to adjust the refrigerant flow direction of the air conditioner. In this embodiment, the reversing device 15 may include at least one four-way valve, and may also include at least one three-way valve, or may be a combination of at least one four-way valve and at least one three-way valve. This embodiment does not limit the specific composition of the reversing device.

[0060] Step S10: when the air conditioner has a need for hot water, obtaining the water tank temperature of the hot water tank and the accumulated running time of the air conditioner in the hot water mode.

[0061] It should be noted that when the air conditioner has a hot water demand, it means that the air conditioner is currently running in the hot water mode. At this time, the operation mode of the air conditioner indoor unit can be any one of the standby mode, cooling mode, heating mode and other energy demand modes.

[0062] It is understandable that the temperature of the upper and lower parts of the water tank can be monitored by the sensor inside the water heating tank, so as to obtain the upper water temperature T5U and the lower water temperature T5L of the water heating tank. In this embodiment, the water heating tank includes the upper water temperature and the lower water temperature of the water tank obtained in real time. At the same time, the accumulated running time T_HPtime of the air conditioner in the water heating mode is obtained.

[0063] In the specific implementation, when the air conditioner has a need for hot water and the hot water function of the heat pump system is turned on, it means that hot water is being heated by the heat pump system at this time, and it is judged whether the air conditioner outdoor unit is in the process of defrosting, or the defrosting exit time does not exceed the preset time. If any of the above conditions is met, there is no need to obtain the water tank temperature of the hot water tank and the cumulative running time of the air conditioner in the hot water mode, and keep the hot water function of the heat pump system turned on. When the air conditioner has a need for hot water and the hot water function of the heat pump system is turned on, if the air conditioner outdoor unit is not defrosting at this time and the defrosting exit time exceeds the rated time, it is necessary to obtain the water tank temperature of the hot water tank and the cumulative running time of the air conditioner in the hot water mode, and enter the subsequent judgment process.

[0064] In this embodiment, the rated duration can be set to 10 minutes, or it can be set to other durations according to needs. In this embodiment, the rated duration = 10 minutes is taken as an example for explanation; when heating hot water through the heat pump system, the electric heating component can also be turned on at the same time, and the heat pump system and the electric heating component can be used to heat the hot water tank together, or the electric heating component can be turned off, and only the heat pump system can be used to heat the heating vertically. This embodiment does not limit this.

[0065] Step S20: When the accumulated operating time and the water tank temperature meet the preset hot water production control conditions, the working states of the heat pump system and the electric heating component are adjusted.

[0066] It should be noted that, in this embodiment, the preset hot water control conditions are: the cumulative operation time T_HPtime ≥ the maximum operation time of the heat pump T_HPstop, the difference between the condensing temperature Tc and the water tank temperature Tc-Min(T5L, T5U) ≤ the set value T5_HPstop1_tempOff, the water tank temperature rise Max(△T5L, △T5U) within the rated time ≤ the target temperature rise △Tk_tar, and the upper water temperature T5U and the lower water temperature T5L of the water tank meet Max(T5U, T5L) < the water tank set temperature Ts-the first temperature value. In this embodiment, the first temperature value is set to 2°C, and can also be set to other values ​​according to needs. This embodiment takes the first temperature value = 2 as an example for explanation.

[0067] It can be understood that it is determined whether the accumulated operating time and the water tank temperature meet the preset hot water control conditions. If so, the hot water making function of the heat pump system is turned off, the electric heating component is turned on, and the hot water tank is heated only by the electric heating component; if the accumulated operating time and the water tank temperature do not meet the preset hot water control conditions, the hot water making function of the heat pump system is kept turned on, and the working state of the electric heating component is not adjusted.

[0068] In a feasible implementation manner, the air conditioner outdoor unit further includes a reversing device, and the reversing device is used to adjust the refrigerant flow direction of the air conditioner; the step S20 includes steps A01 to A02:

[0069] Step A01: adjusting the connection state of the reversing device to close the refrigerant channel flowing to the hot water tank.

[0070] Step A02: Turn on the electric heating component.

[0071] It should be noted that when the accumulated operating time and the water tank temperature meet the preset hot water control conditions, the hot water function of the heat pump system needs to be turned off, and the hot water tank is heated only by the electric heating component. At this time, the connection state of the reversing device is adjusted to close the refrigerant channel flowing to the hot water tank. If there is energy demand in the air conditioner indoor unit, keep the refrigerant channel flowing to the air conditioner indoor unit open; in addition, if the electric heating component is in the off state, turn on the electric heating component, and if the electric heating component is in the on state, keep the current working state of the electric heating component.

[0072] In a feasible embodiment, the air-conditioning outdoor unit also includes a reversing device, which is used to adjust the refrigerant flow direction of the air conditioner; after step S20, it includes: when at least one of the conditions of receiving a duration adjustment instruction and the adjusted operation duration corresponding to the duration adjustment instruction is a preset duration, the second water temperature is greater than or equal to the second water temperature difference, and the current water temperature under the water tank is less than or equal to the target water temperature difference is met, adjust the connectivity of the reversing device to open the refrigerant channel flowing to the hot water tank.

[0073] It should be noted that when the administrator modifies the maximum operating time of the heat pump T_HPstop through the wire controller and the modified maximum operating time of the heat pump T_HPstop=0, it is confirmed that the duration adjustment instruction is received and the adjusted operating time corresponding to the duration adjustment instruction is the preset duration. In this embodiment, the preset duration is 0, and the adjusted operating time refers to the modified maximum operating time of the heat pump T_HPstop. The second water temperature refers to the maximum value Max(T5U, T5L) of the upper water temperature T5U and the lower water temperature T5L of the water tank obtained in real time. The second water temperature difference refers to the set temperature Ts of the water tank-the second temperature value. In this embodiment, the second temperature value is set to 1°C, and it can also be set to other values ​​according to requirements. This embodiment is described by taking the second temperature value=1 as an example. The target lower water temperature difference refers to the difference between the lower water temperature HP_STOP_T5L of the water tank recorded when the hot water function of the heat pump system is turned off and the third temperature value. In this embodiment, the third temperature value is set to 5°C, and it can also be set to other values ​​according to requirements. This embodiment is described by taking the third temperature value=5 as an example.

[0074] It is understandable that after turning off the hot water function of the heat pump system and turning on the electric heating component, if any of the following exit heat pump control conditions is met, the electric heating component is turned off, the hot water function of the heat pump system is restarted, the hot water tank is heated by the heat pump system, and the accumulated running time T_HPtime is cleared, and the connectivity of the reversing device is adjusted at this time to open the refrigerant channel flowing to the hot water tank. In this embodiment, the exit heat pump control conditions include but are not limited to: 1. After receiving the duration adjustment instruction and the adjusted running time corresponding to the duration adjustment instruction is the preset duration; 2. The second water temperature is greater than or equal to the second water temperature difference: Max(T5U, T5L)≥Ts–1; 3. The current water temperature under the water tank is less than or equal to the target water temperature difference: T5L≤HP_STOP_T5L—5; 4. Electric heating circuit breaker protection; 5. Shutdown.

[0075] This embodiment provides an air conditioner, comprising: a heat pump system and an electric heating component, the heat pump system comprising an air conditioner outdoor unit, at least one air conditioner indoor unit and a hot water module, the air conditioner outdoor unit is respectively connected to each air conditioner indoor unit and the hot water module, the hot water module comprises: a hot water tank, the electric heating component is used to heat the hot water tank; the control method of the air conditioner comprises: when the air conditioner has a hot water energy demand, obtaining the water tank temperature of the hot water tank and the accumulated running time of the air conditioner in the hot water mode; and when the accumulated running time and the water tank temperature meet the preset hot water control conditions, adjusting the working state of the heat pump system and the electric heating component. In the above manner, when the hot water effect of the heat pump system is poor, the operation of the heat pump system is adaptively adjusted, and the operation requirements of the air conditioner indoor unit can be met while ensuring the hot water operation effect, solving the conflict between the hot water demand and the air conditioning demand effect.

[0076] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 3 , before step S20, steps S01 to S04 are included:

[0077] Step S01: comparing the upper water temperature of the water tank in the water tank temperature with the lower water temperature of the water tank in the water tank temperature, and determining a first water temperature and a second water temperature according to the comparison result.

[0078] It should be noted that, by comparing the upper water temperature T5U of the water tank and the lower water temperature T5L of the water tank, the minimum value of the two is the first water temperature Min (T5L, T5U), and the maximum value of the two is the second water temperature Max (T5U, T5L).

[0079] Step S02: performing a difference calculation based on the first water temperature and the condensation temperature to determine a target temperature difference.

[0080] It should be noted that, at each interval of rated time, the difference between the first water temperature and the condensing temperature is calculated to obtain the target temperature difference Tc-Min (T5L, T5U). In this embodiment, the target temperature difference Tc-Min (T5L, T5U) is calculated at intervals of 10 minutes.

[0081] Step S03: determining the temperature rise of the water tank within the target time interval according to the water tank temperature and historical temperature information.

[0082] It should be noted that the historical temperature information includes but is not limited to the upper water temperature of the water tank and the lower water temperature of the water tank collected at multiple historical time points. The target time interval is set to 10 minutes in this embodiment, and can also be set to other values ​​according to needs. This embodiment is not limited to this. This embodiment takes the target time interval = 10 minutes as an example for explanation.

[0083] It can be understood that within every 10 minutes, the upper water temperature difference and the lower water temperature difference are calculated based on the water tank temperature and historical temperature information, and the maximum value of the two is taken as the water tank temperature rise within the target time interval.

[0084] In a feasible implementation manner, the step S03 may further include steps B11 to B14:

[0085] Step B11, determining the historical water temperature and the historical lower water temperature according to the historical temperature information.

[0086] It should be noted that the upper water temperature of the water tank and the lower water temperature of the water tank corresponding to the target historical time point are determined according to the current time and the target time interval. In this embodiment, the historical water temperature refers to the upper water temperature of the water tank corresponding to the target historical time point; the historical lower water temperature refers to the lower water temperature of the water tank corresponding to the target historical time point.

[0087] Step B12, performing a difference calculation based on the upper water temperature of the water tank in the water tank temperature and the historical water temperature to determine the upper water temperature difference within the target time interval.

[0088] Step B13, performing a difference calculation based on the water tank lower water temperature in the water tank temperature and the historical lower water temperature, to determine the lower water temperature difference within the target time interval.

[0089] It should be noted that the difference between the real-time upper water temperature of the water tank and the historical water temperature is calculated, and the target is the upper water temperature difference △T5U within the historical interval (that is, the temperature rise value of the upper temperature of the water tank); the difference between the real-time lower water temperature of the water tank and the historical lower water temperature is calculated, and the target is the lower water temperature difference △T5U within the historical interval (that is, the temperature rise value of the lower temperature of the water tank).

[0090] Step B14, comparing the upper water temperature difference within the target time interval with the lower water temperature difference within the target time interval, and determining the water tank temperature rise within the target time interval according to the comparison result.

[0091] It should be noted that the upper water temperature difference within the target time interval is compared with the lower water temperature difference within the target time interval, and the maximum value between the two is taken as the water tank temperature rise Max (△T5L, △T5U) within the target time interval.

[0092] Step S04: When the accumulated running time is greater than or equal to the running time threshold, the water tank temperature rise is less than or equal to the target temperature rise, the target temperature difference is less than or equal to the temperature difference threshold, and the second water temperature is less than the first water temperature difference, it is determined that the accumulated running time and the water tank temperature meet the preset hot water control conditions.

[0093] It should be noted that the operating time threshold T_HPstop refers to the maximum operating time of the heat pump, which is determined based on the operating mode of the air conditioner indoor unit and the outdoor ambient temperature T4; the target temperature rise △Tk_tar is calculated based on the heat pump capacity, electric heating power and water tank volume; in this embodiment, the temperature difference threshold T5_HPstop1_tempOff has a value range of (1°C, 3°C), which can also be set according to needs; the first water temperature difference refers to the water tank set temperature Ts-the first temperature value.

[0094] It can be understood that when the cumulative operating time T_HPtime ≥ the operating time threshold T_HPstop and the water tank temperature rise Max (△T5L, △T5U) ≤ the target temperature rise △Tk_tar and the target temperature difference Tc-Min (T5L, T5U) ≤ the temperature difference threshold T5_HPstop1_tempOff and the second water temperature Max (T5U, T5L) < the first water temperature difference Ts-2, it is determined that the cumulative operating time and the water tank temperature meet the preset hot water control conditions.

[0095] In a feasible implementation manner, before step S04, steps C21 to C23 may also be included:

[0096] Step C21: Acquire the outdoor ambient temperature and the current operating mode of the air conditioner indoor unit.

[0097] Step C22: determining a target operating time according to the outdoor ambient temperature, the current operating mode of the air conditioner indoor unit and a threshold mapping relationship, wherein the threshold mapping relationship is used to characterize the rated operating time corresponding to each outdoor ambient temperature and each operating mode.

[0098] It should be noted that the outdoor ambient temperature T4 and the current operating mode of the air conditioner indoor unit are obtained, and the target operating time corresponding to the outdoor ambient temperature and the current operating mode is found from the preset mapping relationship table. In this embodiment, the threshold mapping relationship is used to characterize the rated operating time corresponding to each outdoor ambient temperature and each operating mode. The threshold mapping relationship in this embodiment is shown in Table 1, and the parameters can also be adjusted according to actual needs. Among them, T_HPstop_time_DHW is set to 120min, T_HPstop_time_HDHW and T_HPstop_time_CDHW are set to 180min, and can also be set to other values, which are not limited in this embodiment.

[0099] Step C23: Determine a running time threshold according to the target running time.

[0100] It should be noted that after determining the target operating time corresponding to the outdoor ambient temperature T4 and the current operating mode of the air conditioner indoor unit through the threshold mapping relationship, the target operating time is used as the operating time threshold T_HPstop. For example, when the air conditioner indoor unit is in standby mode and the outdoor ambient temperature is 20°C, the operating time threshold T_HPstop = 1 × T_HPstop_time_DHW = 120min.

[0101] Table 1

[0102]

[0103] In a feasible implementation manner, before step S04, steps D31 to D32 may also be included:

[0104] Step D31, when the current working state of the electric heating component is the on state, the temperature rise is calculated according to the water tank volume, the heat pump heating capacity value and the electric heating power to determine the target temperature rise.

[0105] It should be noted that when calculating the target temperature rise, the current working state of the electric heating component needs to be determined. When the electric heating component is turned on, the target temperature rise needs to be calculated based on the water tank volume, the heat pump heating capacity value and the electric heating power. The target temperature rise △Tk_tar=(P_HP+P_Ele)×60×10 / (4.2×Vtk×1000). Among them, P_HP represents the heating capacity of the heat pump, in W; P_Ele represents the electric heating power, in W; Vtk represents the water tank volume, in L.

[0106] It can be understood that in this embodiment, when the air conditioner is running in the hot water mode, the heat pump heating capacity value needs to be determined in combination with the current operating mode of the air conditioner indoor unit and the outdoor ambient temperature T4. In this embodiment, the heat pump heating capacity value is shown in Table 2, and the parameters can also be adjusted according to actual needs. Among them, P_HeatPump_DHW is set to 500W, P_HeatPump_HDHW and P_HeatPump_CDHW are set to 400W, and can also be set to other values, which are not limited in this embodiment.

[0107] Step D32, when the current working state of the electric heating component is the off state, the temperature rise is calculated according to the water tank volume and the heating capacity value of the heat pump to determine the target temperature rise.

[0108] It should be noted that when the electric heating component is turned off, it is necessary to calculate the target temperature rise based on the water tank volume and the heat pump heating capacity value, and the target temperature rise △Tk_tar=P_HP*60*10 / (4.2*Vtk*1000).

[0109] Table 2

[0110]

[0111] This embodiment compares the upper water temperature of the water tank in the water tank temperature with the lower water temperature of the water tank in the water tank temperature, and determines the first water temperature and the second water temperature according to the comparison result; performs difference calculation according to the first water temperature and the condensation temperature to determine the target temperature difference; determines the temperature rise of the water tank within the target time interval according to the water tank temperature and the historical temperature information; determines the accumulated running time and the water tank temperature meet the preset hot water control condition when the accumulated running time is greater than or equal to the running time threshold, the water tank temperature rise is less than or equal to the target temperature rise, the target temperature difference is less than or equal to the temperature difference threshold, and the second water temperature is less than the first water temperature difference. In the above manner, the operation of the heat pump system can be accurately controlled.

[0112] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the control method of the air conditioner of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

[0113] The present application also provides a control device for an air conditioner, please refer to Figure 4 , the control device of the air conditioner comprises:

[0114] The acquisition module 10 is used to acquire the water tank temperature of the hot water tank and the accumulated operation time of the air conditioner in the hot water mode when the air conditioner has hot water energy demand.

[0115] The adjustment module 20 is used to adjust the working state of the heat pump system and the electric heating component when the accumulated operating time and the water tank temperature meet the preset hot water production control conditions.

[0116] In one embodiment, the adjustment module 20 is further used to compare the upper water temperature of the water tank in the water tank temperature and the lower water temperature of the water tank in the water tank temperature, and determine the first water temperature and the second water temperature according to the comparison result; perform difference calculation according to the first water temperature and condensation temperature to determine the target temperature difference; determine the water tank temperature rise within the target time interval according to the water tank temperature and historical temperature information; when the accumulated running time is greater than or equal to the running time threshold, the water tank temperature rise is less than or equal to the target temperature rise, the target temperature difference is less than or equal to the temperature difference threshold, and the second water temperature is less than the first water temperature difference, determine that the accumulated running time and the water tank temperature meet the preset hot water control condition.

[0117] In one embodiment, the adjustment module 20 is also used to determine the historical water temperature and the historical lower water temperature based on the historical temperature information; perform difference calculation based on the upper water temperature of the water tank in the water tank temperature and the historical water temperature to determine the upper water temperature difference within the target time interval; perform difference calculation based on the lower water temperature of the water tank in the water tank temperature and the historical lower water temperature to determine the lower water temperature difference within the target time interval; compare the upper water temperature difference within the target time interval with the lower water temperature difference within the target time interval, and determine the water tank temperature rise within the target time interval based on the comparison result.

[0118] In one embodiment, the adjustment module 20 is also used to obtain the outdoor ambient temperature and the current operating mode of the air conditioner indoor unit; determine the target operating time according to the outdoor ambient temperature, the current operating mode of the air conditioner indoor unit and the threshold mapping relationship, and the threshold mapping relationship is used to characterize the rated operating time corresponding to each outdoor ambient temperature and each operating mode; determine the operating time threshold according to the target operating time.

[0119] In one embodiment, the adjustment module 20 is also used to calculate the temperature rise according to the water tank volume, the heat pump heating capacity value and the electric heating power to determine the target temperature rise when the current working state of the electric heating component is the on state; and to calculate the temperature rise according to the water tank volume and the heat pump heating capacity value to determine the target temperature rise when the current working state of the electric heating component is the off state.

[0120] In one embodiment, the adjustment module 20 is further used to adjust the connectivity state of the reversing device to close the refrigerant channel flowing to the hot water tank; and to turn on the electric heating component.

[0121] In one embodiment, the adjustment module 20 is also used to adjust the connectivity of the reversing device to open the refrigerant channel to the hot water tank when at least one of the following conditions is met: a duration adjustment instruction is received and the adjusted operating duration corresponding to the duration adjustment instruction is a preset duration, the second water temperature is greater than or equal to the second water temperature difference, and the current water temperature under the water tank is less than or equal to the target water temperature difference.

[0122] This embodiment obtains the water tank temperature of the hot water tank and the accumulated running time of the air conditioner in the hot water mode when the air conditioner needs to heat water; and adjusts the working state of the heat pump system and the electric heating component when the accumulated running time and the water tank temperature meet the preset hot water control conditions. In the above manner, when the effect of using the heat pump system to heat water is poor, the operation of the heat pump system is adaptively adjusted, and the operation requirements of the air conditioner can be met while ensuring the effect of hot water operation, thus solving the conflict between the effect of hot water demand and air conditioning demand.

[0123] The control device of the air conditioner provided in the present application adopts the control method of the air conditioner in the above embodiment, which can solve the technical problem in the prior art that the operation of the heat pump system cannot be adaptively adjusted when the hot water production effect of the heat pump system is poor. Compared with the prior art, the beneficial effects of the control device of the air conditioner provided in the present application are the same as the beneficial effects of the control method of the air conditioner provided in the above embodiment, and the other technical features in the control device of the air conditioner are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0124] The present application provides an air conditioner, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the control method of the air conditioner in the above-mentioned embodiment one.

[0125] Reference below Figure 5 , which shows a schematic diagram of the structure of an air conditioner suitable for implementing the embodiment of the present application. The air conditioner in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 5 The air conditioner shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0126] like Figure 5As shown, the air conditioner may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the air conditioner are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the air conditioner to communicate with other devices wirelessly or wired to exchange data. Although the figure shows an air conditioner with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or provided alternatively.

[0127] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0128] The air conditioner provided by the present application adopts the control method of the air conditioner in the above embodiment, which can solve the technical problem in the prior art that the operation of the heat pump system cannot be adaptively adjusted when the hot water production effect of the heat pump system is poor. Compared with the prior art, the beneficial effects of the air conditioner provided by the present application are the same as the beneficial effects of the control method of the air conditioner provided by the above embodiment, and other technical features in the air conditioner are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0129] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0130] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0131] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the control method of the air conditioner in the above-mentioned embodiment.

[0132] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. 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 combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0133] The computer-readable storage medium may be included in the air conditioner, or may exist independently without being installed in the air conditioner.

[0134] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the air conditioner, the air conditioner: when the air conditioner has a need for hot water, obtains the water tank temperature of the hot water tank and the accumulated running time of the air conditioner in the hot water mode; and when the accumulated running time and the water tank temperature meet the preset hot water control conditions, adjusts the working status of the heat pump system and the electric heating component.

[0135] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0136] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0137] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0138] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the control method of the above-mentioned air conditioner, and can solve the technical problem in the prior art that the operation of the heat pump system cannot be adaptively adjusted when the hot water production effect of the heat pump system is poor. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the control method of the air conditioner provided by the above-mentioned embodiment, and will not be repeated here.

[0139] The present application also provides a computer program product, including a computer program, which implements the steps of the air conditioner control method as described above when executed by a processor.

[0140] The computer program product provided by the present application can solve the technical problem in the prior art that the operation of the heat pump system cannot be adaptively adjusted when the heat pump system has a poor water heating effect. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the air conditioner control method provided by the above embodiment, and will not be described in detail here.

[0141] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for controlling an air conditioner, characterized in that: The control method of the air conditioner is applied to the air conditioner, the air conditioner comprises: a heat pump system and an electric heating component, the heat pump system comprises an air conditioner outdoor unit, at least one air conditioner indoor unit and a hot water module, the air conditioner outdoor unit is respectively connected to each air conditioner indoor unit and the hot water module, the hot water module comprises: a hot water tank, the electric heating component is used to heat the hot water tank; The control method of the air conditioner comprises: When the air conditioner has a hot water energy demand, obtaining the water tank temperature of the hot water tank and the accumulated running time of the air conditioner in the hot water mode; and When the accumulated operating time and the water tank temperature meet the preset hot water production control conditions, the working states of the heat pump system and the electric heating component are adjusted.

2. The method according to claim 1, characterized in that Before the step of adjusting the working states of the heat pump system and the electric heating component when the accumulated operating time and the water tank temperature meet the preset hot water production control conditions, the step further includes: Comparing the upper water temperature of the water tank in the water tank temperature with the lower water temperature of the water tank in the water tank temperature, and determining the first water temperature and the second water temperature according to the comparison result; Performing a difference calculation based on the first water temperature and the condensing temperature to determine a target temperature difference; Determining a water tank temperature rise within a target time interval based on the water tank temperature and historical temperature information; and When the accumulated running time is greater than or equal to the running time threshold, the water tank temperature rise is less than or equal to the target temperature rise, the target temperature difference is less than or equal to the temperature difference threshold, and the second water temperature is less than the first water temperature difference, it is determined that the accumulated running time and the water tank temperature meet the preset hot water control conditions.

3. The method according to claim 2, characterized in that The step of determining the water tank temperature rise within the target time interval according to the water tank temperature and historical temperature information comprises: Determine the historical water temperature and the historical lower water temperature according to the historical temperature information; Performing a difference calculation based on the upper water temperature of the water tank in the water tank temperature and the historical water temperature to determine the upper water temperature difference within the target time interval; Performing a difference calculation based on the water tank lower water temperature in the water tank temperature and the historical lower water temperature to determine the lower water temperature difference within the target time interval; and The upper water temperature difference value within the target time interval is compared with the lower water temperature difference value within the target time interval, and the water tank temperature rise within the target time interval is determined according to the comparison result.

4. The method according to claim 2, characterized in that Before the step of determining that the accumulated running time and the water tank temperature meet the preset hot water control condition when the accumulated running time is greater than or equal to the running time threshold, the water tank temperature rise is less than or equal to the target temperature rise, the target temperature difference is less than or equal to the temperature difference threshold, and the second water temperature is less than the first water temperature difference, the step further includes: Acquiring the outdoor ambient temperature and the current operating mode of the air conditioner indoor unit; Determining a target operating time according to the outdoor ambient temperature, the current operating mode of the air conditioner indoor unit, and a threshold mapping relationship, wherein the threshold mapping relationship is used to characterize the rated operating time corresponding to each outdoor ambient temperature and each operating mode; and A running time threshold is determined according to the target running time.

5. The method according to claim 2, characterized in that Before the step of determining that the accumulated running time and the water tank temperature meet the preset hot water control condition when the accumulated running time is greater than or equal to the running time threshold, the water tank temperature rise is less than or equal to the target temperature rise, the target temperature difference is less than or equal to the temperature difference threshold, and the second water temperature is less than the first water temperature difference, the step further includes: When the current working state of the electric heating component is the on state, the temperature rise is calculated according to the water tank volume, the heat pump heating capacity value and the electric heating power to determine the target temperature rise; and When the current working state of the electric heating component is the off state, the temperature rise is calculated according to the water tank volume and the heating capacity value of the heat pump to determine the target temperature rise.

6. The method according to any one of claims 1 to 5, characterized in that The air conditioner outdoor unit also includes a reversing device, which is used to adjust the refrigerant flow direction of the air conditioner; The step of adjusting the working state of the heat pump system and the electric heating component comprises: adjusting the connection state of the reversing device to close the refrigerant passage flowing to the hot water tank; and Turn on the electric heating assembly.

7. The method according to any one of claims 1 to 5, characterized in that The air conditioner outdoor unit also includes a reversing device, which is used to adjust the refrigerant flow direction of the air conditioner; After the step of adjusting the working states of the heat pump system and the electric heating component when the accumulated operating time and the water tank temperature meet the preset hot water control conditions, the method further includes: When at least one of the following conditions is met: a duration adjustment instruction is received and the adjusted operating duration corresponding to the duration adjustment instruction is a preset duration, the second water temperature is greater than or equal to the second water temperature difference, and the current water temperature under the water tank is less than or equal to the target water temperature difference, the connectivity state of the reversing device is adjusted to open the refrigerant channel flowing to the hot water tank.

8. A control device for an air conditioner, characterized in that: The control device of the air conditioner comprises: an acquisition module, for acquiring the water tank temperature of the hot water tank and the accumulated running time of the air conditioner in the hot water mode when the air conditioner has a hot water energy demand; and The adjustment module is used to adjust the working state of the heat pump system and the electric heating component when the accumulated operating time and the water tank temperature meet the preset hot water control conditions.

9. An air conditioner, characterized in that: The air conditioner comprises: a memory, a processor, and a control program of the air conditioner stored in the memory and executable on the processor, wherein the control program of the air conditioner is configured to implement the control method of the air conditioner according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium stores a control program of the air conditioner, and when the control program of the air conditioner is executed by the processor, the control method of the air conditioner according to any one of claims 1 to 7 is implemented.

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