Air conditioner and heating energy-saving control method, device and storage medium thereof

Abstract

The present invention discloses an air conditioner and a heating energy-saving control method, device and storage medium thereof. The method comprises: in response to a heating energy-saving mode instruction, controlling the air conditioner to enter a first energy-saving stage, in which the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature; when the exit condition of the first energy-saving stage is met, controlling the air conditioner to enter a second energy-saving stage, in which the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature; wherein the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the second energy-saving stage. Thus, by controlling the air conditioner to be in different energy-saving stages, and determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature in each energy-saving stage, and the maximum allowable frequency of the compressor in different stages is different, not only can the air conditioner be quickly heated up and a comfortable temperature be maintained, but also energy consumption can be saved.

Description

Technical Field

[0001] The present invention relates to the technical field of air handling equipment, and in particular to an air conditioner and a heating energy-saving control method, device and storage medium thereof. Background Art

[0002] In the related art, the compressor frequency of the air conditioner is adjusted at a fixed frequency in a stepped manner according to the outdoor ambient temperature. This frequency adjustment method may cause the output capacity of the air conditioner to be too high at a certain outdoor ambient temperature, resulting in increased power consumption, or insufficient output capacity, resulting in poor comfort. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the purpose of the present invention is to provide an air conditioner and a heating energy-saving control method, device and storage medium thereof, by controlling the air conditioner to be in different energy-saving stages, and determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature in each energy-saving stage, and the maximum allowable frequency of the compressor in different stages is different, so that not only can the air conditioner be heated quickly and a comfortable temperature be maintained, but also energy consumption can be saved.

[0004] To achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention proposes a heating energy-saving control method for an air conditioner, the method comprising: in response to a heating energy-saving mode instruction, controlling the air conditioner to enter a first energy-saving stage, in which the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature; when the exit condition of the first energy-saving stage is met, controlling the air conditioner to enter a second energy-saving stage, in which the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature; wherein the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the second energy-saving stage.

[0005] According to one embodiment of the present invention, in the first energy-saving stage, the method also includes: obtaining the indoor ambient temperature and / or the compressor operating time; when obtaining the indoor ambient temperature, if the indoor ambient temperature is greater than or equal to a first preset temperature threshold, determining that the exit condition of the first energy-saving stage is met; when obtaining the compressor operating time, if the compressor operating time reaches the first preset time threshold, determining that the exit condition of the first energy-saving stage is met; when obtaining the indoor ambient temperature and the compressor operating time, if the indoor ambient temperature is greater than or equal to the first preset temperature threshold or the compressor operating time reaches the first preset time threshold, determining that the exit condition of the first energy-saving stage is met.

[0006] According to one embodiment of the present invention, the method also includes: when the first exit condition of the second energy-saving stage is met, controlling the air conditioner to enter the third energy-saving stage, and in the third energy-saving stage, determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature; wherein the maximum allowable frequency of the compressor corresponding to the second energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the third energy-saving stage; when the second exit condition of the second energy-saving stage is met, controlling the air conditioner to enter the first energy-saving stage again, and obtaining the indoor ambient temperature and / or the compressor operating time after the first preset time of entering the first energy-saving stage.

[0007] According to one embodiment of the present invention, in the second energy-saving stage, the method also includes: obtaining the indoor ambient temperature and / or the compressor running time; when obtaining the indoor ambient temperature, if the indoor ambient temperature is greater than or equal to the second preset temperature threshold, or the temperature difference between the indoor ambient temperature and the indoor target temperature is greater than or equal to the first preset temperature difference threshold, it is determined that the first exit condition of the second energy-saving stage is met; when obtaining the compressor running time, if the compressor running time reaches the second preset time threshold, it is determined that the first exit condition of the second energy-saving stage is met; when obtaining the indoor ambient temperature and the compressor running time, if the indoor ambient temperature is greater than or equal to the second preset temperature threshold, or the compressor running time reaches the second preset time threshold, or the temperature difference between the indoor ambient temperature and the indoor target temperature is greater than or equal to the first preset temperature difference threshold, it is determined that the first exit condition of the second energy-saving stage is met; wherein, the second preset temperature threshold is greater than the first preset temperature threshold.

[0008] According to one embodiment of the present invention, in the second energy-saving stage, the method also includes: obtaining the indoor ambient temperature; if the temperature difference between the indoor ambient temperature and the indoor ambient temperature when entering the second energy-saving stage is less than a second preset temperature difference threshold and lasts for a second preset time, it is determined that the second exit condition of the second energy-saving stage is met.

[0009] According to one embodiment of the present invention, the method includes: when the exit condition of the third energy-saving stage is met, controlling the air conditioner to enter the second energy-saving stage again, and obtaining the indoor ambient temperature and / or the compressor running time after a third preset time of entering the second energy-saving stage.

[0010] According to one embodiment of the present invention, in the third energy-saving stage, the method also includes: obtaining the indoor ambient temperature; when the temperature difference between the indoor ambient temperature and the indoor ambient temperature when entering the third energy-saving stage is less than a third preset temperature difference threshold and lasts for a fourth preset time, determining that the exit condition of the third energy-saving stage is met.

[0011] According to one embodiment of the present invention, determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature includes: determining the temperature range in which the outdoor ambient temperature is located; wherein, in order from small to large, the temperature ranges include a first temperature range, a second temperature range, a third temperature range and a fourth temperature range; when the temperature range is the first temperature range or the fourth temperature range, the maximum allowable frequency of the compressor is a preset fixed value; when the temperature range is the second temperature range or the third temperature range, determining the maximum allowable frequency of the compressor according to the linear relationship between the outdoor ambient temperature and the preset temperature frequency; wherein the outdoor ambient temperature is negatively correlated with the maximum allowable frequency of the compressor.

[0012] To achieve the above-mentioned purpose, a second embodiment of the present invention proposes a computer-readable storage medium having a program stored thereon, which, when executed by a processor, implements the aforementioned heating energy-saving control method for the air conditioner.

[0013] To achieve the above-mentioned purpose, the third aspect of the embodiment of the present invention proposes an air conditioner, including: a memory, a processor, and a program for a charging socket stored in the memory and executable on the processor. When the processor executes the program, the heating energy-saving control method of the air conditioner described above is implemented.

[0014] To achieve the above-mentioned purpose, the fourth aspect of the present invention proposes a heating energy-saving control device for an air conditioner, the device comprising: an acquisition module, used to acquire the outdoor ambient temperature; a control module, used to respond to the heating energy-saving mode instruction, control the air conditioner to enter a first energy-saving stage, in which the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature, and when the exit condition of the first energy-saving stage is met, the air conditioner is controlled to enter a second energy-saving stage, in which the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature; wherein the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the second energy-saving stage.

[0015] According to the air conditioner and its heating energy-saving control method, device and storage medium of the embodiment of the present invention, in response to the heating energy-saving mode instruction, the air conditioner is controlled to enter the first energy-saving stage. In the first energy-saving stage, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature. When the exit condition of the first energy-saving stage is met, the air conditioner is controlled to enter the second energy-saving stage. In the second energy-saving stage, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature, wherein the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the second energy-saving stage. In this way, by controlling the air conditioner to be in different energy-saving stages, and determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature in each energy-saving stage, and the maximum allowable frequency of the compressor in different stages is different, it is possible not only to achieve rapid heating of the air conditioner and maintain a comfortable temperature, but also to save energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a flow chart of a heating energy-saving control method of an air conditioner according to an embodiment of the present invention.

[0017] Figure 2 Schematic diagram of the maximum allowable frequency of the compressor corresponding to different energy-saving stages according to an embodiment of the present invention.

[0018] Figure 3 FIG. 4 is a flow chart of a heating energy-saving control method for an air conditioner according to another embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the structure of a heating energy-saving control device for an air conditioner according to the present invention. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The air conditioner and its heating energy-saving control method, device and storage medium according to the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] Figure 1 FIG. 1 is a flow chart of a heating energy-saving control method for an air conditioner according to an embodiment of the present invention. Figure 1 The heating energy-saving control method of the air conditioner may include:

[0023] S110, in response to the heating energy-saving mode instruction, controlling the air conditioner to enter a first energy-saving stage. In the first energy-saving stage, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature.

[0024] Exemplarily, a control key can be set corresponding to the heating energy-saving mode of the air conditioner. The control key can be a physical button on the remote control or a virtual button on the APP (Application), and there is no limitation here. When the user needs to turn on the heating energy-saving function of the air conditioner, the control key can be pressed to put the air conditioner into the heating energy-saving mode. In the heating energy-saving mode, the air conditioner is first controlled to be in the first energy-saving stage to achieve rapid heating of the air conditioner, even if the indoor ambient temperature rises rapidly, and in the first energy-saving stage, the outdoor ambient temperature is obtained through the temperature sensor, and the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature, so as to achieve rapid heating of the air conditioner within a safe operating range.

[0025] As an example, see Figure 2In the first energy-saving stage: when the outdoor ambient temperature T4≤0, the maximum allowable frequency F of the compressor is F1; when the outdoor ambient temperature T4≥T4b, the maximum allowable frequency F of the compressor is F3; when the outdoor ambient temperature T4=T4a, the maximum allowable frequency F of the compressor is F2; ​​when 0<outdoor ambient temperature T4<T4a, the maximum allowable frequency F of the compressor is F=(F2-F1)*(T4-0) / (T4a-0)+F1; when T4a<outdoor ambient temperature T4<T4b, the maximum allowable frequency F of the compressor is F=(F3-F2)*(T4-0) / (T4b-0)+F2. Among them, T4a>0℃+5℃, T4b>T4a+3℃, F1, F2 and F3 meet the indoor wind speed of the air conditioner above 80%, and the indoor air outlet temperature is greater than or equal to 40℃ without turning on the electric auxiliary heating.

[0026] S120, when the exit condition of the first energy-saving stage is met, the air conditioner is controlled to enter the second energy-saving stage. In the second energy-saving stage, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature; wherein the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the second energy-saving stage.

[0027] Specifically, after the air conditioner enters the first energy-saving stage, it will operate at a higher maximum allowable frequency of the compressor to quickly increase the indoor ambient temperature and gradually approach the indoor target temperature. When the indoor ambient temperature reaches a certain value, the air conditioner can be controlled to enter the second energy-saving stage. In the second energy-saving stage, the maximum allowable frequency of the compressor is still determined according to the outdoor ambient temperature, but the maximum allowable frequency of the compressor in this stage is lower than that of the first energy-saving stage. In this way, the indoor ambient temperature can be increased at a relatively high temperature increase rate while reducing the energy consumption of the air conditioner.

[0028] As an example, see Figure 2 , in the second energy-saving stage: when the outdoor ambient temperature T4≤0, the maximum allowable frequency F of the compressor is F4; when the outdoor ambient temperature T4≥T4b, the maximum allowable frequency F of the compressor is F3-a; when the outdoor ambient temperature T4=T4a, the maximum allowable frequency F of the compressor is F2-a; when 0<outdoor ambient temperature T4<T4a, the maximum allowable frequency F of the compressor is F=(F2-F1)*(T4-0) / (T4a-0)+F1-a; when T4a<outdoor ambient temperature T4<T4b, the maximum allowable frequency F of the compressor is F=(F3-F2)*(T4-0) / (T4b-0)+F2-a. Among them, F4 satisfies that when the indoor wind speed of the air conditioner is below 80%, the indoor air outlet temperature is greater than or equal to 37℃ without turning on the electric auxiliary heating, F1-F4=a(constant)>0, and the maximum allowable frequency curve of the compressor in the second energy-saving stage is parallel to the maximum allowable frequency of the compressor in the first energy-saving stage.

[0029] In the above embodiment, the air conditioner is first controlled to enter the first energy-saving stage to achieve rapid temperature rise of the air conditioner by using a relatively high maximum allowable frequency of the compressor. After a period of temperature rise, the air conditioner is controlled to enter the second energy-saving stage to achieve temperature rise of the air conditioner by using a relatively low maximum allowable frequency of the compressor, while reducing the energy consumption of the air conditioner. In addition, in each energy-saving stage, the maximum allowable frequency of the compressor is determined based on the outdoor ambient temperature, and rapid temperature rise in each stage can be achieved within the safe operating range. In this way, by controlling the air conditioner in different energy-saving stages, and determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature in each energy-saving stage, and the maximum allowable frequency of the compressor in different stages is different, it is possible to not only achieve rapid temperature rise of the air conditioner and maintain a comfortable temperature, but also save energy consumption.

[0030] In some embodiments, in the first energy-saving stage, the method also includes: obtaining the indoor ambient temperature and / or the compressor operating time; when obtaining the indoor ambient temperature, if the indoor ambient temperature is greater than or equal to a first preset temperature threshold, determining that the exit condition of the first energy-saving stage is met; when obtaining the compressor operating time, if the compressor operating time reaches the first preset time threshold, determining that the exit condition of the first energy-saving stage is met; when obtaining the indoor ambient temperature and the compressor operating time, if the indoor ambient temperature is greater than or equal to the first preset temperature threshold or the compressor operating time reaches the first preset time threshold, determining that the exit condition of the first energy-saving stage is met.

[0031] That is, whether to exit the first energy-saving stage and enter the second energy-saving stage can be determined based on the operating time of the compressor, the indoor ambient temperature, or the operating time of the compressor and the indoor ambient temperature in the first energy-saving stage.

[0032] Exemplarily, when the air conditioner enters the first energy-saving stage, the indoor ambient temperature T0 is obtained through the temperature sensor, and the indoor ambient temperature T0 is judged. If the indoor ambient temperature T0 is greater than or equal to the first preset temperature threshold A, it is determined that the exit condition of the first energy-saving stage is met, and the second energy-saving stage is entered. Among them, the first preset temperature threshold A can be determined according to actual conditions, and there is no limitation here. Exemplarily, the first preset temperature threshold A satisfies 13℃≤A<20℃.

[0033] Alternatively, when the air conditioner enters the first energy-saving stage, the compressor operation time t is recorded and the compressor operation time t is judged. If the compressor operation time t reaches the first preset time threshold ts1, it is determined that the exit condition of the first energy-saving stage is met, and the second energy-saving stage is entered. Among them, the first preset time threshold ts1 can be determined according to actual conditions, and there is no limitation here. Exemplarily, the first preset time threshold ts1 satisfies 10min≤ts1<35min.

[0034] Alternatively, when the air conditioner enters the first energy-saving stage, it starts recording the compressor operation time t, and at the same time obtains the indoor ambient temperature T0 through the temperature sensor, and judges the indoor ambient temperature T0 and the compressor operation time t. If the indoor ambient temperature T0 is greater than or equal to the first preset temperature threshold A and the compressor operation time t reaches the first preset time threshold ts1, it is determined that the exit condition of the first energy-saving stage is met, and the second energy-saving stage is entered at this time.

[0035] In this way, after the air conditioner enters the first energy-saving stage, it can determine whether to exit the first energy-saving stage and enter the second energy-saving stage according to the indoor ambient temperature and / or the compressor running time to reduce the energy consumption of the air conditioner.

[0036] In some embodiments, the method also includes: when the first exit condition of the second energy-saving stage is met, controlling the air conditioner to enter the third energy-saving stage, and in the third energy-saving stage, determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature; wherein the maximum allowable frequency of the compressor corresponding to the second energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the third energy-saving stage; when the second exit condition of the second energy-saving stage is met, controlling the air conditioner to enter the first energy-saving stage again, and obtaining the indoor ambient temperature and / or the compressor operating time after the first preset time of entering the first energy-saving stage.

[0037] Specifically, after the air conditioner has been running for a period of time in the second energy-saving stage, there are two situations. One is that the indoor ambient temperature is further increased and the indoor ambient temperature is very close to the indoor target temperature. At this time, the second energy-saving stage can be exited and the third energy-saving stage can be entered. In the third energy-saving stage, the maximum allowable frequency of the compressor is still determined according to the outdoor ambient temperature, but the maximum allowable frequency of the compressor in this stage is lower than that of the second energy-saving stage. This can not only reduce the possibility of temperature over-adjustment, but also reduce the energy consumption of the air conditioner.

[0038] As an example, see Figure 2, in the third energy-saving stage: when the outdoor ambient temperature T4≤0, the maximum allowable frequency F of the compressor is F5; when the outdoor ambient temperature T4≥T4b, the maximum allowable frequency F of the compressor is F3-b; when the outdoor ambient temperature T4=T4a, the maximum allowable frequency F of the compressor is F2-b; when 0<outdoor ambient temperature T4<T4a, the maximum allowable frequency F of the compressor is F=(F2-F1)*(T4-0) / (T4a-0)+F1-b; when T4a<outdoor ambient temperature T4<T4b, the maximum allowable frequency F of the compressor is F=(F3-F2)*(T4-0) / (T4b-0)+F2-b. Among them, F5 satisfies the indoor wind speed of the air conditioner below 80%, and when the electric auxiliary heating is not turned on, the indoor air outlet temperature is greater than or equal to 37℃, F1-F5=b(constant)>a, and the maximum allowable frequency curve of the compressor in the third energy-saving stage is parallel to the maximum allowable frequency of the compressor in the second energy-saving stage.

[0039] The other is that the indoor ambient temperature is difficult to rise, and in some cases, the indoor temperature may even have a downward trend, indicating that the heating amount generated based on the current maximum allowable frequency of the compressor cannot meet the current heating demand. At this time, the first energy-saving stage is entered again to achieve a rapid increase in the indoor ambient temperature and meet the user's temperature demand. Among them, after controlling the air conditioner to enter the first energy-saving stage again, after a delay of the first preset time t1, it is judged based on the above method whether the air conditioner meets the exit condition of the first energy-saving stage. Among them, the first preset time t1 can be determined according to the actual situation. For example, the first preset time t1 satisfies 3min≤t1≤10min to reduce the frequent adjustment of the energy-saving stage due to temperature fluctuations.

[0040] In this way, through the reasonable setting of the exit conditions of the second energy-saving stage, two exit conditions are included, one is to enter the third energy-saving stage after exiting the second energy-saving stage, and the other is to re-enter the first energy-saving stage after exiting the second energy-saving stage, thereby meeting the temperature requirements while saving energy.

[0041] In some embodiments, in the second energy-saving stage, the method also includes: obtaining the indoor ambient temperature and / or the compressor running time; when obtaining the indoor ambient temperature, if the indoor ambient temperature is greater than or equal to the second preset temperature threshold, or the temperature difference between the indoor ambient temperature and the indoor target temperature is greater than or equal to the first preset temperature difference threshold, it is determined that the first exit condition of the second energy-saving stage is met; when obtaining the compressor running time, if the compressor running time reaches the second preset time threshold, it is determined that the first exit condition of the second energy-saving stage is met; when obtaining the indoor ambient temperature and the compressor running time, if the indoor ambient temperature is greater than or equal to the second preset temperature threshold, or the compressor running time reaches the second preset time threshold, or the temperature difference between the indoor ambient temperature and the indoor target temperature is greater than or equal to the first preset temperature difference threshold, it is determined that the first exit condition of the second energy-saving stage is met; wherein, the second preset temperature threshold is greater than the first preset temperature threshold.

[0042] That is, whether to exit the second energy-saving stage and enter the third energy-saving stage can be determined based on the operating time of the compressor, the indoor ambient temperature, or the operating time of the compressor and the indoor ambient temperature in the second energy-saving stage.

[0043] Exemplarily, when the air conditioner enters the second energy-saving stage, the indoor ambient temperature T0 is obtained through the temperature sensor, and the indoor ambient temperature T0 is judged. If the indoor ambient temperature T0 is greater than or equal to the second preset temperature threshold B, or the temperature difference between the indoor ambient temperature T0 and the indoor target temperature Tsc is greater than or equal to the first preset temperature difference threshold △Ts1, it is determined that the first exit condition of the second energy-saving stage is met, and the third energy-saving stage is entered at this time. Among them, the second preset temperature threshold B and the first preset temperature difference threshold △Ts1 are determined according to actual conditions, without limitation here, and the second preset temperature threshold is greater than the first preset temperature threshold. Exemplarily, the second preset temperature threshold B satisfies 20℃≤B<23℃, and the first preset temperature difference threshold △Ts1 can be -1.5℃.

[0044] Alternatively, when the air conditioner enters the second energy-saving stage, the compressor operation time t is recorded and the compressor operation time t is judged. If the compressor operation time t reaches the second preset time threshold ts2, it is determined that the first exit condition of the second energy-saving stage is met, and the third energy-saving stage is entered at this time. Among them, the second preset time threshold ts2 is determined according to the actual situation and is not limited here. Exemplarily, the second preset time threshold ts2 satisfies 10min≤ts2<35min.

[0045] Alternatively, when the air conditioner enters the second energy-saving stage, the compressor operation time t is recorded, and the indoor ambient temperature T0 is obtained through the temperature sensor, and the indoor ambient temperature T0 and the compressor operation time t are judged. If the indoor ambient temperature T0 is greater than or equal to the second preset temperature threshold B or the temperature difference between the indoor ambient temperature T0 and the indoor target temperature Tsc is greater than or equal to the first preset temperature difference threshold △Ts1, and the compressor operation time t reaches the second preset time threshold ts2, it is determined that the first exit condition of the second energy-saving stage is met, and the third energy-saving stage is entered at this time.

[0046] In this way, after the air conditioner enters the second energy-saving stage, it can determine whether to exit the second energy-saving stage and enter the third energy-saving stage according to the indoor ambient temperature and the compressor running time to reduce the energy consumption of the air conditioner.

[0047] In some embodiments, in the second energy-saving stage, the method also includes: obtaining the indoor ambient temperature; if the temperature difference between the indoor ambient temperature and the indoor ambient temperature when entering the second energy-saving stage is less than a second preset temperature difference threshold and lasts for a second preset time, it is determined that the second exit condition of the second energy-saving stage is met.

[0048] That is to say, whether it is necessary to exit the second energy-saving stage and enter the first energy-saving stage can be determined based on the deviation between the indoor ambient temperature in the second energy-saving stage and the indoor ambient temperature when entering the second energy-saving stage (that is, the indoor ambient temperature when exiting the first energy-saving stage).

[0049] Exemplarily, when the air conditioner enters the second energy-saving stage or exits the first energy-saving stage, the indoor ambient temperature is obtained through the temperature sensor and recorded as T01, and after entering the second energy-saving stage, the indoor ambient temperature T0 is continued to be obtained through the temperature sensor, and compared with T01. If the difference between T0 and T01 is less than the second preset temperature difference threshold △Ts2 and lasts for the second preset time t2, it is determined that the second exit condition of the second energy-saving stage is met, and the first energy-saving stage is entered at this time. Among them, the second preset temperature difference threshold △Ts2 and the second preset time t2 can be determined according to actual conditions. Exemplarily, the second preset temperature difference threshold △Ts2 satisfies 0℃<△Ts2≤2℃, and the second preset time t2 satisfies 3min≤t2≤10min.

[0050] In this way, when the difference between the indoor ambient temperature after the air conditioner enters the second energy-saving stage and the temperature when entering the second stage is small, it means that the air conditioner is running at the maximum allowable frequency of the compressor in the second energy-saving stage and the heating effect is poor. The air conditioner is controlled to run again in the first energy-saving stage to increase the heating speed of the air conditioner.

[0051] In some embodiments, the method further includes: when the exit condition of the third energy-saving stage is met, controlling the air conditioner to re-enter the second energy-saving stage, and obtaining the indoor ambient temperature and / or the compressor running time after a third preset time of entering the second energy-saving stage.

[0052] Specifically, the third energy-saving stage is equivalent to the temperature fine-tuning and maintenance stage. During this stage, if the indoor ambient temperature cannot be maintained, it means that the heating amount generated based on the current maximum allowable frequency of the compressor cannot meet the current heating demand. At this time, the second energy-saving stage is entered again to increase the indoor ambient temperature, thereby reaching the indoor target temperature and meeting the user's temperature demand. Among them, after controlling the air conditioner to enter the second energy-saving stage again, after a delay of the third preset time t3, it is judged based on the above method whether the air conditioner meets the first exit condition or the second exit condition of the second energy-saving stage. Among them, the third preset time t3 can be determined according to actual conditions. Exemplarily, the third preset time t3 satisfies 3min≤t3≤10min to reduce the occurrence of frequent adjustments in the energy-saving stage due to temperature fluctuations.

[0053] In some embodiments, in the third energy-saving stage, the method also includes: obtaining the indoor ambient temperature; when the temperature difference between the indoor ambient temperature and the indoor ambient temperature when entering the third energy-saving stage is less than a third preset temperature difference threshold and lasts for a fourth preset time, determining that the exit condition of the third energy-saving stage is met.

[0054] That is to say, whether it is necessary to exit the third energy-saving stage and enter the second energy-saving stage can be determined based on the deviation between the indoor ambient temperature in the third energy-saving stage and the indoor ambient temperature when entering the third energy-saving stage (that is, the indoor ambient temperature when exiting the second energy-saving stage).

[0055] Exemplarily, when the air conditioner enters the third energy-saving stage or exits the second energy-saving stage, the indoor ambient temperature is obtained through the temperature sensor and recorded as T02, and after entering the third energy-saving stage, the indoor ambient temperature T0 is continued to be obtained through the temperature sensor, and compared with T02. If the difference between T0 and T02 is less than the third preset temperature difference threshold △Ts3 and lasts for the fourth preset time t4, it is determined that the exit condition of the third energy-saving stage is met, and the second energy-saving stage is entered at this time. Among them, the third preset temperature difference threshold △Ts3 and the fourth preset time t4 are determined according to actual conditions. Exemplarily, the third preset temperature difference threshold △Ts3 satisfies 0℃<△Ts3≤2℃, and the fourth preset time t4 satisfies 3min≤t4≤10min.

[0056] In this way, when the difference between the indoor ambient temperature after the air conditioner enters the third energy-saving stage and the temperature when entering the third energy-saving stage is small, it means that the air conditioner is running at the maximum allowable frequency of the compressor in the third energy-saving stage and the temperature maintenance effect is poor. The air conditioner is controlled to run again in the second energy-saving stage to increase the temperature of the air conditioner.

[0057] In some embodiments, determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature includes: determining the temperature range in which the outdoor ambient temperature is located; wherein, in order from small to large, the temperature ranges include a first temperature range, a second temperature range, a third temperature range and a fourth temperature range; when the temperature range is the first temperature range or the fourth temperature range, the maximum allowable frequency of the compressor is a preset fixed value; when the temperature range is the second temperature range or the third temperature range, determining the maximum allowable frequency of the compressor according to the linear relationship between the outdoor ambient temperature and the preset temperature frequency; wherein the outdoor ambient temperature is negatively correlated with the maximum allowable frequency of the compressor.

[0058] Specifically, the maximum allowable frequency of the compressor can be determined according to the outdoor ambient temperature in each energy-saving stage, so as to achieve rapid heating or temperature maintenance in each stage within the safe operating range.

[0059] For example, refer to Figure 2 The air conditioner may include three energy-saving stages, namely the first energy-saving stage, the second energy-saving stage and the third energy-saving stage. In each energy-saving stage, the maximum allowable frequency of the compressor is determined in the same way according to the outdoor ambient temperature. The difference lies in the specific parameters.

[0060] Specifically, it can be divided into four temperature intervals, namely the first temperature interval T4≤0℃, the second temperature interval 0<T4≤T4a, the third temperature interval T4a<T4<T4b and the fourth temperature interval T4≥T4b℃. For example, T4a>0℃+5℃, T4b>T4a+3℃.

[0061] In the first temperature range, the maximum allowable frequency F of the compressor is a preset fixed value. For example, the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is F1, the maximum allowable frequency of the compressor corresponding to the second energy-saving stage is F4, and the maximum allowable frequency of the compressor corresponding to the third energy-saving stage is F5.

[0062] In the fourth temperature range, the maximum allowable frequency F of the compressor is a preset fixed value. For example, the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is F3, the maximum allowable frequency of the compressor corresponding to the second energy-saving stage is F3-a, and the maximum allowable frequency of the compressor corresponding to the third energy-saving stage is F3-b.

[0063] In the second temperature range, the maximum allowable frequency F of the compressor is determined according to the linear relationship between the outdoor ambient temperature T4 and the preset temperature frequency. For example, the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is F = (F2-F1)*(T4-0) / (T4a-0)+F1, the maximum allowable frequency of the compressor corresponding to the second energy-saving stage is F = (F2-F1)*(T4-0) / (T4a-0)+F1-a, and the maximum allowable frequency of the compressor corresponding to the third energy-saving stage is F = (F2-F1)*(T4-0) / (T4a-0)+F1-b.

[0064] In the third temperature range, the maximum allowable frequency F of the compressor is determined according to the linear relationship between the outdoor ambient temperature T4 and the preset temperature frequency. For example, the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is F = (F3-F2)*(T4-0) / (T4b-0)+F2, the maximum allowable frequency of the compressor corresponding to the second energy-saving stage is F = (F3-F2)*(T4-0) / (T4b-0)+F2-a, and the maximum allowable frequency of the compressor corresponding to the third energy-saving stage is F = (F3-F2)*(T4-0) / (T4b-0)+F2-b.

[0065] Among them, F1-F4=a(constant)>0, F1-F5=b(constant)>a, the outdoor ambient temperature is negatively correlated with the maximum allowable frequency of the compressor, and F1, F2, and F3 meet the requirements that when the indoor wind speed of the air conditioner is above 80%, the indoor air outlet temperature is greater than or equal to 40°C without turning on electric auxiliary heating. When the indoor wind speed of the air conditioner of F4 and F5 is below 80%, the indoor air outlet temperature is greater than or equal to 37°C without turning on electric auxiliary heating.

[0066] In this way, based on the linear relationship between temperature and frequency, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature, which improves the control accuracy compared to using fixed values ​​in each interval.

[0067] As a specific example, see Figure 3 , the heating energy-saving control method of the air conditioner may include:

[0068] S201, first energy-saving stage control.

[0069] After the air conditioner receives the heating energy-saving mode instruction, the air conditioner is controlled to enter the first energy-saving stage. In the first energy-saving stage, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature T4.

[0070] S202, in the first energy-saving stage, determine whether the compressor operation time t reaches the first preset time threshold ts1 (10min≤ts1<35min), or whether the indoor ambient temperature T0 is greater than or equal to A (13℃≤A<20℃), if yes, execute S203, if not, return to S201.

[0071] S203, second energy-saving stage control.

[0072] In the second energy-saving stage, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature T4.

[0073] S204, in the second energy-saving stage, determine whether the compressor operation time t reaches the second preset time threshold ts2 (10min≤ts2<35min), or whether the indoor ambient temperature T0 is greater than or equal to B (20℃≤B<23℃), or whether the difference between the indoor ambient temperature T0 and the indoor target temperature Tsc is greater than or equal to -1.5℃. If so, execute S207; otherwise, continue in the second energy-saving stage.

[0074] S205, 3 minutes after entering the second energy-saving stage, if the difference between the indoor ambient temperature T0 and the indoor ambient temperature T01 when entering the second energy-saving stage is detected to be less than △Ts2 (0℃<△Ts2≤2℃) for 3 consecutive minutes, execute S206, otherwise, continue in the second energy-saving stage.

[0075] S206, after the first energy-saving stage runs for a first preset time t1 (3min≤t1≤10min), execute S202 again.

[0076] S207, third energy-saving stage control.

[0077] In the third energy-saving stage, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature T4.

[0078] S208, 5 minutes after entering the third energy-saving stage, if the difference between the indoor ambient temperature T0 and the indoor ambient temperature T02 when entering the third energy-saving stage is detected to be less than △Ts3 (0℃<△Ts3≤2℃) for 3 consecutive minutes, execute S209, otherwise, continue in the third energy-saving stage.

[0079] S209, after the second energy-saving stage runs for a third preset time t3 (3min≤t3≤10min), execute S204 again.

[0080] In summary, the heating energy-saving control method of the air conditioner according to the embodiment of the present invention controls the air conditioner to be in different energy-saving stages, and determines the maximum allowable frequency of the compressor according to the outdoor ambient temperature in each energy-saving stage, and the maximum allowable frequency of the compressor is different in different stages, thereby not only achieving rapid heating of the air conditioner and maintaining a comfortable temperature, but also saving energy consumption.

[0081] In some embodiments, a computer-readable storage medium is further provided, on which a program is stored, and when the program is executed by a processor, the aforementioned heating energy-saving control method of the air conditioner is implemented.

[0082] It should be pointed out that the above-mentioned explanation of the embodiments and beneficial effects of the heating energy-saving control method of the air conditioner is also applicable to the computer-readable storage medium of the embodiment of the present invention, and will not be elaborated here in order to avoid redundancy.

[0083] In some embodiments, an air conditioner is also provided, including: a memory, a processor, and a program for a charging socket stored in the memory and executable on the processor. When the processor executes the program, the heating energy-saving control method of the air conditioner described above is implemented.

[0084] It should be pointed out that the above-mentioned explanation of the embodiment and beneficial effects of the heating energy-saving control method of the air conditioner is also applicable to the air conditioner of the embodiment of the present invention, and will not be elaborated here in order to avoid redundancy.

[0085] In some embodiments, a heating energy-saving control device for an air conditioner is also provided. Figure 4 The heating energy-saving control device 300 of the air conditioner includes: an acquisition module 310 and a control module 320 .

[0086] Among them, the acquisition module 310 is used to obtain the outdoor ambient temperature; the control module 320 is used to respond to the heating energy-saving mode instruction, control the air conditioner to enter the first energy-saving stage, in the first energy-saving stage, determine the maximum allowable frequency of the compressor according to the outdoor ambient temperature, and when the exit condition of the first energy-saving stage is met, control the air conditioner to enter the second energy-saving stage, in the second energy-saving stage, determine the maximum allowable frequency of the compressor according to the outdoor ambient temperature; wherein the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the second energy-saving stage.

[0087] According to one embodiment of the present invention, the acquisition module 310 is also used to acquire the indoor ambient temperature and / or the compressor operating time; the control module 320 is also used to, in the first energy-saving stage, when acquiring the indoor ambient temperature, if the indoor ambient temperature is greater than or equal to the first preset temperature threshold, determine that the exit condition of the first energy-saving stage is met; when acquiring the compressor operating time, if the compressor operating time reaches the first preset time threshold, determine that the exit condition of the first energy-saving stage is met; when acquiring the indoor ambient temperature and the compressor operating time, if the indoor ambient temperature is greater than or equal to the first preset temperature threshold or the compressor operating time reaches the first preset time threshold, determine that the exit condition of the first energy-saving stage is met.

[0088] According to one embodiment of the present invention, the control module 320 is also used to: when the first exit condition of the second energy-saving stage is met, control the air conditioner to enter the third energy-saving stage, and in the third energy-saving stage, determine the maximum allowable frequency of the compressor according to the outdoor ambient temperature; wherein the maximum allowable frequency of the compressor corresponding to the second energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the third energy-saving stage; when the second exit condition of the second energy-saving stage is met, control the air conditioner to enter the first energy-saving stage again, and obtain the indoor ambient temperature and / or the compressor operating time after the first preset time of entering the first energy-saving stage.

[0089] According to one embodiment of the present invention, the control module 320 is also used for: in the second energy-saving stage, when obtaining the indoor ambient temperature, if the indoor ambient temperature is greater than or equal to the second preset temperature threshold, or the temperature difference between the indoor ambient temperature and the indoor target temperature is greater than or equal to the first preset temperature difference threshold, it is determined that the first exit condition of the second energy-saving stage is met; when obtaining the compressor running time, if the compressor running time reaches the second preset time threshold, it is determined that the first exit condition of the second energy-saving stage is met; when obtaining the indoor ambient temperature and the compressor running time, if the indoor ambient temperature is greater than or equal to the second preset temperature threshold, or the compressor running time reaches the second preset time threshold, or the temperature difference between the indoor ambient temperature and the indoor target temperature is greater than or equal to the first preset temperature difference threshold, it is determined that the first exit condition of the second energy-saving stage is met; wherein, the second preset temperature threshold is greater than the first preset temperature threshold.

[0090] According to one embodiment of the present invention, the control module 320 is also used for: in the second energy-saving stage, if the temperature difference between the indoor ambient temperature and the indoor ambient temperature when entering the second energy-saving stage is less than a second preset temperature difference threshold and lasts for a second preset time, it is determined that the second exit condition of the second energy-saving stage is met.

[0091] According to one embodiment of the present invention, the control module 320 is also used to: when the exit condition of the third energy-saving stage is met, control the air conditioner to enter the second energy-saving stage again, and obtain the indoor ambient temperature and / or the compressor running time after the fourth preset time of entering the second energy-saving stage.

[0092] According to one embodiment of the present invention, the control module 320 is also used to: in the third energy-saving stage, when the temperature difference between the indoor ambient temperature and the indoor ambient temperature when entering the third energy-saving stage is less than a third preset temperature difference threshold and lasts for a fourth preset time, determine that the exit condition of the third energy-saving stage is met.

[0093] It should be pointed out that the above-mentioned explanation of the embodiments and beneficial effects of the heating energy-saving control method of the air conditioner is also applicable to the heating energy-saving control device of the air conditioner according to the embodiment of the present invention, and will not be elaborated here in order to avoid redundancy.

[0094] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0095] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0097] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0098] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0099] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A heating energy-saving control method for an air conditioner, characterized in that: The method comprises: In response to a heating energy-saving mode instruction, controlling the air conditioner to enter a first energy-saving stage, in which a maximum allowable frequency of the compressor is determined according to an outdoor ambient temperature; When the exit condition of the first energy-saving stage is met, the air conditioner is controlled to enter the second energy-saving stage. In the second energy-saving stage, the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature; wherein the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the second energy-saving stage.

2. The method according to claim 1, characterized in that In the first energy-saving stage, the method further includes: Get indoor ambient temperature and / or compressor running time; When obtaining the indoor ambient temperature, if the indoor ambient temperature is greater than or equal to a first preset temperature threshold, determining that an exit condition of the first energy-saving stage is met; When acquiring the compressor operation time, if the compressor operation time reaches a first preset time threshold, determining that an exit condition of the first energy-saving stage is met; When obtaining the indoor ambient temperature and the compressor operating time, if the indoor ambient temperature is greater than or equal to a first preset temperature threshold or the compressor operating time reaches a first preset time threshold, it is determined that the exit condition of the first energy-saving stage is met.

3. The method according to claim 2, characterized in that The method further comprises: When the first exit condition of the second energy-saving stage is met, the air conditioner is controlled to enter the third energy-saving stage, in which the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature; wherein the maximum allowable frequency of the compressor corresponding to the second energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the third energy-saving stage; When the second exit condition of the second energy-saving stage is met, the air conditioner is controlled to re-enter the first energy-saving stage, and after a first preset time of entering the first energy-saving stage, the indoor ambient temperature and / or the compressor operating time are obtained.

4. The method according to claim 3, characterized in that In the second energy-saving stage, the method further includes: Get indoor ambient temperature and / or compressor running time; When obtaining the indoor ambient temperature, if the indoor ambient temperature is greater than or equal to a second preset temperature threshold, or the temperature difference between the indoor ambient temperature and the indoor target temperature is greater than or equal to a first preset temperature difference threshold, it is determined that the first exit condition of the second energy-saving stage is met; When acquiring the compressor operation time, if the compressor operation time reaches a second preset time threshold, determining that a first exit condition of the second energy-saving stage is met; When obtaining the indoor ambient temperature and the compressor running time, if the indoor ambient temperature is greater than or equal to a second preset temperature threshold, or the compressor running time reaches a second preset time threshold, or the temperature difference between the indoor ambient temperature and the indoor target temperature is greater than or equal to a first preset temperature difference threshold, it is determined that the first exit condition of the second energy-saving stage is met; Wherein, the second preset temperature threshold is greater than the first preset temperature threshold.

5. The method according to claim 3, characterized in that: In the second energy-saving stage, the method further includes: Get the indoor ambient temperature; If the temperature difference between the indoor ambient temperature and the indoor ambient temperature when entering the second energy-saving stage is less than a second preset temperature difference threshold and lasts for a second preset time, it is determined that the second exit condition of the second energy-saving stage is met.

6. The method according to claim 4, characterized in that The method further comprises: When the exit condition of the third energy-saving stage is met, the air conditioner is controlled to enter the second energy-saving stage again, and after a third preset time of entering the second energy-saving stage, the indoor ambient temperature and / or the compressor operating time are obtained.

7. The method according to claim 6, characterized in that In the third energy-saving stage, the method further includes: Get the indoor ambient temperature; When the temperature difference between the indoor ambient temperature and the indoor ambient temperature when entering the third energy-saving stage is less than a third preset temperature difference threshold and lasts for a fourth preset time, it is determined that the exit condition of the third energy-saving stage is met.

8. The method according to any one of claims 1 to 7, characterized in that: Determining the maximum allowable frequency of the compressor according to the outdoor ambient temperature includes: Determine the temperature range in which the outdoor ambient temperature is located; wherein, in order of temperature from small to large, the temperature range includes a first temperature range, a second temperature range, a third temperature range and a fourth temperature range; When the temperature interval is the first temperature interval or the fourth temperature interval, the maximum allowable frequency of the compressor is a preset fixed value; When the temperature interval is the second temperature interval or the third temperature interval, determining the maximum allowable frequency of the compressor according to a linear relationship between the outdoor ambient temperature and a preset temperature frequency; The outdoor ambient temperature is negatively correlated with the maximum allowable frequency of the compressor.

9. A computer-readable storage medium, characterized in that: A program is stored thereon, and when the program is executed by a processor, the heating energy-saving control method of the air conditioner according to any one of claims 1-8 is implemented.

10. An air conditioner, characterized in that: include: A memory, a processor, and a program for a charging socket stored in the memory and executable on the processor, wherein when the processor executes the program, the heating energy-saving control method for the air conditioner according to any one of claims 1 to 8 is implemented.

11. A heating energy-saving control device for an air conditioner, characterized in that: The device comprises: An acquisition module is used to obtain the outdoor ambient temperature; A control module, for controlling the air conditioner to enter a first energy-saving stage in response to a heating energy-saving mode instruction, in which the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature, and when an exit condition of the first energy-saving stage is met, controlling the air conditioner to enter a second energy-saving stage, in which the maximum allowable frequency of the compressor is determined according to the outdoor ambient temperature; wherein the maximum allowable frequency of the compressor corresponding to the first energy-saving stage is greater than the maximum allowable frequency of the compressor corresponding to the second energy-saving stage.

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