Control method and device for air conditioner, air conditioner, storage medium

Abstract

The application relates to the technical field of air conditioners, and discloses a control method for an air conditioner, which comprises the following steps: obtaining the current environmental temperature of a space associated with the air conditioner when the air conditioner is running in a refrigeration mode; and controlling the rotating speed of a flow guide device to adjust the heat exchange efficiency in a target time period by adjusting the mixing speed of natural wind and heat exchange wind when the absolute value of the difference between the environmental temperature and a temperature threshold is less than a critical threshold. The target time period represents the time period during which the environmental temperature is updated from the current environmental temperature to the temperature threshold. When the difference between the current environmental temperature and the target temperature is small, the heat exchange efficiency of the heat exchange terminal is improved to reduce the power consumption of the air conditioner. The application further discloses a control device for the air conditioner, the air conditioner and a storage medium.

Description

TECHNICAL FIELD

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

[0002] At present, with the rapid development of science and technology and the increasing improvement of people's living standards, users' requirements for air conditioners are gradually increasing.

[0003] When the air conditioner is running in a cooling mode or a heating mode, and the difference between the current environment temperature value and the target temperature value set by the user is large, the related art usually adopts the following scheme: the air conditioner is turned on for a long time to run in the cooling mode or the heating mode to adjust the environment temperature value, so that the adjusted environment temperature value reaches the target temperature value.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] According to the heat exchange principle of flowing gas, the smaller the difference between the current environment temperature value and the target temperature value set by the user, the longer the heat exchange time required by the air conditioner. As a result, the running time of the air conditioner is prolonged, and the power consumption of the air conditioner is increased.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an overall description of the application, nor is it intended to identify key / important elements or delineate the scope of the embodiments, but to serve as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a control method and device for an air conditioner, an air conditioner, and a storage medium, which improve the heat exchange efficiency of the heat exchange end when the difference between the current environment temperature value and the target temperature value is small, and reduce the power consumption of the air conditioner.

[0009] In some embodiments, the indoor unit includes a natural air duct, a heat exchange air duct, and a mixed air zone, the natural air duct guides natural air drawn in by the indoor unit to the mixed air zone, the heat exchange air duct guides heat exchange air to the mixed air zone, the natural air and the heat exchange air are mixed in the mixed air zone to form mixed air, and the mixed air enters an indoor area, the indoor unit further includes a guiding device configured to control a flow rate of the natural air flowing into the mixed air zone, and the method includes: obtaining a current ambient temperature of a space associated with the air conditioner when the air conditioner operates in a cooling mode; and in a case where an absolute value of a difference between the ambient temperature and a temperature threshold is less than a critical threshold, controlling a rotating speed of the guiding device, and adjusting a mixing speed of the natural air and the heat exchange air to adjust a heat exchange efficiency in a target time period, wherein the target time period represents a time period during which the ambient temperature is updated from the current ambient temperature to the temperature threshold.

[0010] In some embodiments, the device includes a processor and a memory storing program instructions, the processor is configured to execute the control method for the air conditioner as described above when running the program instructions.

[0011] In some embodiments, the air conditioner includes an indoor unit, the indoor unit includes a natural air duct, a heat exchange air duct, and a mixed air zone, the natural air duct guides natural air drawn in by the indoor unit to the mixed air zone, the heat exchange air duct guides heat exchange air to the mixed air zone, the natural air and the heat exchange air are mixed in the mixed air zone to form mixed air, and the mixed air enters an indoor area, the indoor unit further includes a guiding device configured to control a flow rate of the natural air flowing into the mixed air zone, and adjust a mixing speed of the natural air and the heat exchange air, and the control device for the air conditioner as described above is installed in the guiding device.

[0012] In some embodiments, the storage medium stores program instructions, the program instructions execute the control method for the air conditioner as described above when running.

[0013] The control method, the control device, the air conditioner, and the storage medium provided by the embodiments of the present disclosure can achieve the following technical effects:

[0014] With the control method for the air conditioner provided by the embodiment of the present disclosure, when the air conditioner is running in the cooling mode, the current environment temperature of the space associated with the air conditioner is obtained, and the current environment temperature is compared with the temperature threshold value. If the absolute value of the difference between the environment temperature and the temperature threshold value is less than the critical threshold value, it indicates that the environment temperature value cannot be quickly adjusted by the constant system capacity. At this time, the embodiment of the present disclosure controls the rotating speed of the flow guide device, adjusts the wind speed of the natural wind, and adjusts the mixing speed of the natural wind and the heat exchange wind to achieve the effect of rapid intersection of the natural wind and the heat exchange wind, so as to adjust the heat exchange efficiency in the target time period. At the same time, the flow guide device has a small volume, and the power value of the cross-flow fan arranged therein is also small. By controlling the rotating speed of the flow guide device, no obvious fan noise will occur. In this way, the embodiment of the present disclosure can improve the heat exchange efficiency of the heat exchange end and reduce the power consumption of the air conditioner when the difference between the current environment temperature value and the temperature threshold value is small.

[0015] The foregoing general description and the following description are only exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute a limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute a proportional limitation, and wherein:

[0017] Figure 1 is a structure of an indoor unit of an air conditioner provided by the embodiment of the present disclosure;

[0018] Figure 2 is a schematic diagram of air flow distribution of an indoor unit of an air conditioner provided by the embodiment of the present disclosure;

[0019] Figure 3 is a test diagram of outlet air temperature of an indoor unit provided by the embodiment of the present disclosure;

[0020] Figure 4 is a schematic diagram of a control method for an air conditioner provided by the embodiment of the present disclosure;

[0021] Figure 5 is a schematic diagram of another control method for an air conditioner provided by the embodiment of the present disclosure;

[0022] Figure 6 is a schematic diagram of another control method for an air conditioner provided by the embodiment of the present disclosure;

[0023] Figure 7 is a schematic diagram of another control method for an air conditioner provided by the embodiment of the present disclosure;

[0024] Figure 8is a schematic diagram of another control method for an air conditioner provided by an embodiment of the present disclosure;

[0025] Figure 9 is a schematic diagram of another control method for an air conditioner provided by an embodiment of the present disclosure;

[0026] Figure 10 is a schematic diagram of a control device for an air conditioner provided by an embodiment of the present disclosure;

[0027] Figure 11 is a schematic diagram of an air conditioner provided by an embodiment of the present disclosure.

[0028] Reference signs:

[0029] 1: indoor unit; 1a: indoor unit air inlet;

[0030] 11: indoor heat exchanger; 12: indoor fan;

[0031] 100: heat exchange air duct; 200: natural air duct;

[0032] 300: control device for air conditioner;

[0033] 400: processor; 401: memory; 402: communication interface; 403: bus;

[0034] 50: flow guide device; 50a: flow guide inlet;

[0035] 501: flow guide arm; 502: cross-flow fan. DETAILED DESCRIPTION

[0036] In order to enable a person skilled in the art to more fully understand the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are used only for reference and are not intended to limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0037] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0038] Unless otherwise specified, the term "a plurality of" means two or more.

[0039] In the embodiments of the present disclosure, the character " / " represents that the preceding and following objects are in an "or" relationship. For example, A / B represents: A or B.

[0040] The term "and / or" is a description of the association relationship of the object, which means that there can be three relationships. For example, A and / or B, which means: A or B, or, A and B, three relationships.

[0041] The term "corresponding" can refer to an association relationship or a binding relationship. A and B correspond to each other means that A and B are in an association relationship or a binding relationship.

[0042] In combination Figure 1 And Figure 2 As shown, the embodiments of the present disclosure provide an indoor unit 1, which includes a natural air duct 200, a heat exchange air duct 100, a mixed air area S, and a flow guide device 50. The indoor unit 1 includes an indoor heat exchanger 11 and an indoor fan 12. The indoor unit 1 is provided with an indoor unit air inlet 1a at the top. The air flowing into the indoor unit air inlet 1a forms heat exchange air after heat exchange. The natural air duct 200 guides the natural air sucked into the indoor area to the mixed air area. The heat exchange air duct 100 guides the heat exchange air to the mixed air area. The natural air and the heat exchange air are mixed to form mixed air in the mixed air area and then enter the indoor area. The flow guide device 50 is used to control the flow rate of the natural air flowing into the mixed air area. Wherein, X represents the flow direction of the heat exchange air in the heat exchange air duct 100. Y represents the flow direction of the natural air after being guided by the flow guide device through the natural air duct 200.

[0043] Optionally, the flow guide device 50 includes a flow guide arm 501 and a cross-flow fan 502. The flow guide device 50 is provided with a flow guide inlet 50a below. The flow guide arm 501 is used to guide the natural air into the natural air duct 200. The rotating speed of the cross-flow fan 502 can be controlled to adjust the flow rate of the natural air, so as to adjust the mixing speed of the natural air after being guided and the heat exchange air.

[0044] The present application explains the technical improvement of the present scheme from the aspects of theoretical analysis and test analysis:

[0045] First, theoretical analysis:

[0046] The heat exchange principle formula is Q = c m AT. Wherein, c, m, AT, and Q represent the specific heat capacity of the substance, the mass of the substance, the temperature change before and after the heat exchange of the substance, and the heat exchange amount of the substance. According to the above heat exchange principle formula, when the air conditioner is running in the refrigeration mode, the heat exchange amount of the indoor air in the heat exchange process is Q1 = c1 m1 AT = c1 V1 H1 p1 t1 AT. Wherein, c1 represents the specific heat capacity of the air, V1 H1 p1 represents the mass of the air flowing through the indoor unit heat exchanger for t1 time period, V1 represents the wind speed value and the wind speed value is controlled by the speed value of the indoor fan 12. As shown in FIG. Figure 1 , H1 represents the cross-sectional area of the indoor unit air inlet 1a. p1 represents the air density. AT represents the temperature change before and after the heat exchange of the air through the indoor heat exchanger. Q1 represents the heat exchange amount of the air before and after the indoor heat exchanger.

[0047] Based on the above heat exchange principle formula and the energy conservation theorem, it can be known that, without considering energy loss, Q1 is equal to the heat exchange amount Q2 of the indoor heat exchanger. When the system capacity of the air conditioner is constant, the heat exchange amount Q2 of the indoor heat exchanger is constant. Therefore, when the wind speed value V1 is constant and AT < 1, t1 is increased by a factor. Wherein, the system capacity of the air conditioner refers to the heat exchange capacity of the air conditioner. The adjustment of the energy adjustment device can realize the adjustment operation of the heat exchange capacity, so as to realize the adjustment of the system capacity.

[0048] At the same time, when the wind speed value V1 is constant, the AT corresponding to the t1 increased by a factor is 1℃. Thus, the environmental temperature value corresponding to the AT of 1℃ is set as the critical threshold. And AT is equal to the difference between the environmental temperature value and the temperature threshold. That is, the environmental temperature value - the temperature threshold = 1℃. Therefore, the critical threshold = the temperature threshold + 1℃. It should be noted that the critical threshold can also be other values with larger deviation from the temperature threshold. For example, the critical threshold = the temperature threshold + 1℃ + AT offset . 0≤|AT offset |≤1℃. The present disclosure embodiment can not be specifically limited thereto.

[0049] In addition, according to Q1 = c1 m1 AT = c1 V1 H1 p1 t1 AT, it can be known that c1, H1, and p1 are constant values. In addition to improving the system capacity of the air conditioner, V1 can also be increased by increasing the speed value of the indoor fan 12. However, in the case that the wind speed of the indoor fan 12 is increased too fast, the fan noise will be increased and there will be a problem of insufficient heat exchange.

[0050] Second, test analysis:

[0051] Figure 3 The test diagram of the outlet air temperature of the indoor unit is shown. The horizontal axis represents the test duration, in minutes. The vertical axis represents the environmental temperature value obtained by detection under the test conditions, in ℃.

[0052] The test conditions are as follows: a cabinet air conditioner and a temperature tester are arranged in a room. Meanwhile, the room is a closed space with an area of about 15 square meters. The temperature tester is placed at a position 2 meters in front of the air outlet of the indoor unit and 1.6 meters in height.

[0053] The indoor temperature is 31℃. After the air conditioner is controlled to perform the cooling mode, the indoor temperature value is recorded every 1 minute. The indoor temperature value is detected by the temperature tester.

[0054] Based on the above test conditions, the ambient temperature of the room where the indoor unit is located is tested. As shown in Figure 3 When the air conditioner is running in the cooling mode, the ambient temperature value decreases at a relatively fast rate in the time period of 1-7 minutes under the condition that the system capacity of the air conditioner is constant. In the time period of 13-16 minutes, the decrease rate of the ambient temperature value is very small. With the increase of the test time, the decrease rate of the ambient temperature value gradually slows down.

[0055] According to Figure 3 The following conclusions can be drawn: a temperature threshold and a critical threshold are set. The temperature threshold represents the target ambient temperature value reached by the air conditioner running in the cooling mode or the heating mode. The critical threshold represents the ambient temperature value corresponding to ΔT of 1℃.

[0056] On the one hand, according to the heat exchange principle of flowing gas, under the condition that the system capacity of the air conditioner is constant, the closer the ambient temperature value is to the temperature threshold, the longer the heat exchange time required, which causes the power consumption of the air conditioner to increase, and even a long time to reach the temperature threshold.

[0057] On the other hand, under the condition that the air conditioner runs in the cooling mode and the system capacity is constant, after the ambient temperature value decreases from the current ambient temperature to the critical threshold, the constant system capacity cannot make the ambient temperature value decrease rapidly from the critical threshold to the temperature threshold. Therefore, after the ambient temperature value decreases to the critical threshold, the heat exchange capacity of the air conditioner needs to be improved to achieve the purpose of rapid cooling.

[0058] As described above, the heat exchange capacity of the air conditioner can be improved by increasing the frequency of the compressor and increasing the wind speed value of the indoor and outdoor fans respectively. However, increasing the frequency of the compressor has the defect of increasing the load of the compressor and the power of the whole machine, and increasing the wind speed value of the indoor fan has the defect of increasing the noise and insufficient heat exchange. Therefore, it is difficult to balance the power of the whole machine and the indoor noise by the above technical means of increasing the frequency of the compressor and increasing the wind speed value of the indoor and outdoor fans respectively. Therefore, the present application provides a technical solution which can improve the heat exchange capacity of the air conditioner and effectively balance the power of the whole machine and the indoor noise.

[0059] Based on the above structure of the indoor unit of the air conditioner, combined with Figure 4As shown, the embodiment of the present disclosure provides a control method for an air conditioner, comprising:

[0060] S01, the processor obtains the current environment temperature of the space associated with the air conditioner when the air conditioner is running in the cooling mode.

[0061] In this step, the space associated with the air conditioner refers to the room where the air conditioner is installed, or refers to other rooms communicating with the room where the air conditioner is installed.

[0062] S02, the processor controls the rotating speed of the flow guide device to adjust the mixing speed of the natural wind and the heat exchange wind to adjust the heat exchange efficiency in the target time period when the absolute value of the difference between the environment temperature and the temperature threshold is less than the critical threshold.

[0063] Wherein, the target time period refers to the time period corresponding to the update of the environment temperature from the current environment temperature to the temperature threshold.

[0064] By using the control method for the air conditioner provided by the embodiment of the present disclosure, after the embodiment of the present disclosure obtains the current environment temperature of the space associated with the air conditioner when the air conditioner is running in the cooling mode, the current environment temperature is compared with the temperature threshold. If the absolute value of the difference between the environment temperature and the temperature threshold is less than the critical threshold, it indicates that the constant system capacity cannot quickly adjust the environment temperature value. At this time, the embodiment of the present disclosure controls the rotating speed of the flow guide device, adjusts the wind speed of the natural wind, and adjusts the mixing speed of the natural wind and the heat exchange wind to achieve the effect of rapid intersection of the natural wind and the heat exchange wind, so as to adjust the heat exchange efficiency in the target time period. At the same time, the volume of the flow guide device is small, and the power value of the cross-flow fan configured by the flow guide device is also small. By controlling the rotating speed of the flow guide device, no obvious fan noise will occur. In this way, the embodiment of the present disclosure can improve the heat exchange efficiency of the heat exchange end and reduce the power consumption of the air conditioner when the difference between the current environment temperature value and the temperature threshold is small.

[0065] Optionally, the critical threshold = temperature threshold + 1℃ + ΔT offset 0≤|ΔT offset ≤1℃.

[0066] It should be noted that the processor is the execution subject of the control method for the air conditioner. The processor can be configured in the air conditioner, or can be configured in a server in communication connection with the air conditioner, or can be configured in a terminal device in communication connection with the air conditioner. The embodiment of the present disclosure can not be specifically limited.

[0067] Optionally, the processor, when the absolute value of the difference between the environment temperature and the temperature threshold is less than the critical threshold, further comprises:

[0068] The processor controls the energy adjusting device to perform the operation of maintaining constant heat exchange capacity.

[0069] In this way, the processor controls the energy regulation device to maintain a constant heat exchange capacity, thus avoiding an increase in the power consumption of the air conditioner due to the energy regulation device enhancing its heat exchange capacity.

[0070] Optionally, the processor controls the energy conditioning device to perform operations that maintain a constant heat transfer capacity, including:

[0071] Control the compressor to maintain the current frequency, control the indoor fan to maintain the current indoor wind speed, control the outdoor fan to maintain the current outdoor wind speed, and control the electronic expansion valve to maintain the current valve opening value.

[0072] Optionally, combined Figure 5 As shown, the processor controls the rotation speed of the drainage device, including:

[0073] S11, The processor obtains the current ambient temperature T. pre With temperature threshold T set The difference ΔT.

[0074] S12, the processor determines the target rotational speed based on the difference ΔT and the critical threshold. In this step, the larger the difference ΔT, the smaller the target rotational speed, and the smaller the difference ΔT, the larger the target rotational speed.

[0075] S13, the processor controls the operation of the cross-flow fan according to the target rotation speed.

[0076] Among them, the temperature threshold represents the target ambient temperature value that the air conditioner needs to achieve when operating in cooling or heating mode.

[0077] Thus, this embodiment of the disclosure combines the current ambient temperature with the temperature threshold T. set The target rotational speed is set based on the magnitude of the difference and the critical threshold, and the operation of the cross-flow fan is controlled according to the target rotational speed. Thus, this embodiment of the present disclosure can control the operation of the cross-flow fan based on the current ambient temperature T. pre With temperature threshold T set The system adaptively adjusts the operation of the cross-flow fan to increase the wind speed of the natural wind and improve the mixing speed of the natural wind and the heat exchange air, thereby achieving the effect of rapid convergence of the natural wind and the heat exchange air. This enables real-time adjustment of the heat exchange efficiency within the target time period and reduces the power consumption of the air conditioner.

[0078] Optionally, combined Figure 6 As shown, the processor determines the target rotational speed based on the difference ΔT and the critical threshold, including:

[0079] S21, the processor determines the speed coefficient K based on the difference ΔT and the critical threshold.

[0080] S22, the processor determines the speed coefficient K and the lower speed threshold v based on the speed limit. mindetermining a target rotating speed v tar , v tar = K·v min .

[0081] wherein, or,

[0082] ΔT = |T pre -T set |, T threshold represents a critical threshold, T threshold = T set + 1 + ΔT offset , |ΔT offset |≤ 1℃.

[0083] In this way, when the difference between the current ambient temperature T pre and the temperature threshold T set is small, K is large. When the difference between the current ambient temperature T pre and the temperature threshold T set is large, K is small. In this way, the disclosed embodiments can adaptively adjust the operation of the cross-flow fan according to the deviation between the current ambient temperature T pre and the temperature threshold T set , thereby increasing the wind speed of the natural wind and improving the mixing speed of the natural wind and the heat exchange wind to achieve the effect of rapid intersection of the natural wind and the heat exchange wind, thereby realizing real-time adjustment of the heat exchange efficiency in the target time period and reducing the power consumption of the air conditioner.

[0084] Optionally, in the case of T pre > T set , the processor controls the cross-flow fan to operate according to the target rotating speed, including:

[0085] In the case of v min ≤ v tar < v rat , the cross-flow fan is controlled to operate at v tar .

[0086] In the case of v tar ≥ v rat , the cross-flow fan is controlled to operate at v rat .

[0087] In the case of v tar < v min , the cross-flow fan is controlled to operate at v min .

[0088] wherein, v tar represents the target rotating speed of the cross-flow fan, v min represents the lower rotating speed threshold of the cross-flow fan, and v ratThis indicates the rated speed of the cross-flow fan.

[0089] In this way, when controlling the speed of the cross-flow fan, both the lower limit threshold and the rated speed of the cross-flow fan are taken into account, so as to achieve adaptive adjustment of the speed of the cross-flow fan and achieve the optimal power effect of the cross-flow fan.

[0090] Optionally, combined Figure 7 As shown, in And T pre ≤T set In this case, the processor controls the operation of the cross-flow fan according to the target rotational speed, including:

[0091] S31, the processor acquires reference ambient temperature values ​​T1, T2, ..., T at different times within a preset time period. 2n , n≥2 and n∈N. In this step, the preset time period represents the time period from time 1 to time 2n.

[0092] S32, the processor obtains the temperature difference T between two adjacent ambient temperature values. 2n -T 2n-1 And the sum of all temperature differences within a preset time period ∑ sum .

[0093] S33, the processor in ∑ sum When the value is ≤0, the cross-flow fan is shut down.

[0094] Where, ∑ sum = (T2-T1)+(T4-T3)+…+(T 2n -T 2n-1 ).

[0095] Thus, this embodiment calculates the reference ambient temperature value for a preset time period and the sum of all temperature differences within the preset time period, ∑. sum If ∑ sum If ≤0, it indicates that the current ambient temperature T within the preset time period is... pre Basically below the temperature threshold T set The trend only exists at one or a few moments T. pre The temperature exceeds the threshold. At this point, it is not necessary to control the cross-flow fan to start. Therefore, in the embodiments of this disclosure, in ∑ sum When the value is ≤0, the cross-flow fan is shut down. Thus, this embodiment of the present disclosure can effectively avoid short-term occurrences of T... pre ≤T set This can cause frequent start-stop cycles of the cross-flow fan, extending its service life.

[0096] Combination Figure 8 As shown, this disclosure provides another control method for an air conditioner, including:

[0097] S41, the processor obtains a current environment temperature of a space associated with the air conditioner when the air conditioner operates in the cooling mode.

[0098] S42, the processor controls the rotating speed of the flow guide device to adjust the mixing speed of the natural wind and the heat exchange wind to adjust the heat exchange efficiency in the target time period when the absolute value of the difference between the environment temperature and the temperature threshold is less than the critical threshold.

[0099] S43, the processor controls the energy adjusting device to perform the operation of increasing the heat exchange amount to improve the heat exchange efficiency in the target time period when the absolute value of the difference between the environment temperature and the temperature threshold is greater than or equal to the critical threshold.

[0100] The target time period represents a time period during which the environment temperature is updated from the current environment temperature to the temperature threshold.

[0101] By using the control method for the air conditioner provided by the embodiments of the present disclosure, when the absolute value of the difference between the environment temperature and the temperature threshold is less than the critical threshold, it is known that the environment temperature value cannot be quickly adjusted by the constant system capacity. At this time, the rotating speed of the flow guide device is controlled to adjust the wind speed of the natural wind and the mixing speed of the natural wind and the heat exchange wind to achieve the effect of the rapid intersection of the natural wind and the heat exchange wind to adjust the heat exchange efficiency in the target time period. At the same time, the method of controlling the rotating speed of the flow guide device will not cause obvious fan noise. In this way, when the difference between the current environment temperature value and the temperature threshold is small, the heat exchange efficiency of the heat exchange terminal can be improved, and the power consumption of the air conditioner can be reduced. When the absolute value of the difference between the environment temperature and the temperature threshold is greater than or equal to the critical threshold, it indicates that the system capacity can be improved to quickly adjust the environment temperature value. Therefore, the energy adjusting device is controlled to perform the operation of increasing the heat exchange amount to improve the heat exchange efficiency in the target time period. In summary, according to the comparison result of the absolute value of the difference between the environment temperature and the temperature threshold and the critical threshold, the heat exchange efficiency in the target time period is adjusted by different heat exchange strategies, so that the current environment temperature is quickly updated to the temperature threshold under the corresponding heat exchange strategy, and the purpose of saving the power consumption of the air conditioner is achieved.

[0102] Optionally, the processor controls the energy adjusting device to perform the operation of increasing the heat exchange amount, including:

[0103] controlling the compressor to perform the frequency increasing operation. And / or,

[0104] controlling the indoor fan to increase the wind speed and controlling the outdoor fan to increase the wind speed. And / or,

[0105] controlling the electronic expansion valve to increase the valve opening value.

[0106] In this way, by controlling the compressor to increase the frequency, and / or the indoor and outdoor fans to increase the respective air flow rates, and / or the electronic expansion valve to increase the valve opening value, the heat exchange capacity of the air conditioner is increased, thereby increasing the system capacity of the air conditioner, achieving the effect of rapidly increasing the heat exchanger and improving the heat exchange efficiency in the target time period.

[0107] In combination Figure 9 As shown in the drawings, the embodiments of the present disclosure provide another control method for an air conditioner, comprising:

[0108] S51, the processor obtains the current environment temperature of the space associated with the air conditioner when the air conditioner is running in the cooling mode.

[0109] S52, the processor controls the rotational speed of the flow guide device to adjust the mixing speed of the natural wind and the heat exchange wind to adjust the heat exchange efficiency in the target time period when the absolute value of the difference between the environment temperature and the temperature threshold value is less than the critical threshold value.

[0110] S53, the processor controls the energy adjusting device to perform the operation of increasing the heat exchange amount to improve the heat exchange efficiency in the target time period by increasing the heat exchange capacity, and controls the cross-flow fan to be closed when the absolute value of the difference between the environment temperature and the temperature threshold value is greater than or equal to the critical threshold value.

[0111] Wherein, the target time period represents the time period corresponding to the update of the environment temperature from the current environment temperature to the temperature threshold value.

[0112] With the control method for an air conditioner provided in the embodiments of the present disclosure, when the absolute value of the difference between the ambient temperature and the temperature threshold is less than the critical threshold, it is known that the ambient temperature value cannot be quickly adjusted by the constant system capacity. At this time, the embodiments of the present disclosure control the rotating speed of the flow guide device, adjust the wind speed of the natural wind, and adjust the mixing speed of the natural wind and the heat exchange wind to achieve the effect of quick intersection of the natural wind and the heat exchange wind, so as to adjust the heat exchange efficiency in the target time period. At the same time, the control of the rotating speed of the flow guide device does not cause obvious fan noise. In this way, the embodiments of the present disclosure can improve the heat exchange efficiency of the heat exchange end and reduce the power consumption of the air conditioner when the difference between the current ambient temperature value and the temperature threshold is small. When the absolute value of the difference between the ambient temperature and the temperature threshold is greater than or equal to the critical threshold, it is indicated that the quick adjustment of the ambient temperature value can be achieved by increasing the system capacity, and the increase of the heat exchange efficiency in the target time period by adjusting the rotating speed of the cross-flow fan is not obvious. Therefore, the embodiments of the present disclosure control the energy adjustment device to perform the operation of increasing the heat exchange amount, and improve the heat exchange efficiency in the target time period by increasing the heat exchange capacity. At the same time, the cross-flow fan is controlled to be closed. The precise control of the cross-flow fan is achieved. In this way, the embodiments of the present disclosure adjust the heat exchange efficiency in the target time period by different heat exchange strategies according to the comparison result of the absolute value of the difference between the ambient temperature and the temperature threshold and the critical threshold, so that the current ambient temperature is quickly updated to the temperature threshold under the corresponding heat exchange strategy, and the purposes of saving the power consumption of the air conditioner and precisely controlling the rotating speed of the cross-flow fan are achieved.

[0113] In actual application, as shown in Figure 10 the control method for an air conditioner specifically performs the following steps:

[0114] S101, the processor acquires the current ambient temperature value of the room where the air conditioner is installed.

[0115] S102, when the absolute value of the difference between the ambient temperature and the temperature threshold is greater than or equal to the critical threshold, the processor controls the compressor to perform the frequency increasing operation, controls the indoor and outdoor fans to increase the wind speed respectively, and controls the electronic expansion valve to increase the valve opening value. In this way, the heat exchange capacity of the air conditioner is increased, and the heat exchange efficiency is improved. At the same time, the cross-flow fan is controlled to be closed. Energy saving is achieved. The critical threshold is equal to the temperature threshold plus 1℃.

[0116] S103, the processor continuously acquires a new current ambient temperature value, and when the absolute value of the difference between the ambient temperature and the temperature threshold is less than the critical threshold, the frequency of the compressor is kept unchanged, the wind speed of each of the indoor and outdoor fans is kept unchanged, and the valve opening value of the electronic expansion valve is kept unchanged. It is determined that the air conditioner enters the heat exchange end. At the same time, step S104 is performed.

[0117] In S104, the processor controls the cross-flow fan to start. If the system capacity is continuously improved at this time, a longer time is needed to consume. Therefore, the cross-flow fan is controlled to operate. The flow speed of natural wind can be increased, and the mixing speed of natural wind and heat exchange wind can be accelerated. In this way, the heat exchange efficiency in the target time period is improved.

[0118] In combination Figure 10 As shown in the drawings, the control device 300 for the air conditioner provided by the embodiments of the present disclosure includes a processor 400 and a memory 401. Optionally, the device can also include a communication interface 402 and a bus 403. The processor 400, the communication interface 402, and the memory 401 can complete communication with each other through the bus 403. The communication interface 402 can be used for information transmission. The processor 400 can call the logical instructions in the memory 401 to execute the control method for the air conditioner of the above-mentioned embodiments.

[0119] In addition, the logical instructions in the memory 401 described above can be implemented in the form of a software function unit and sold or used as an independent product. In this case, it can be stored in a computer readable storage medium.

[0120] The memory 401 as a computer readable storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments of the present disclosure. The processor 400 executes the program instructions / modules stored in the memory 401, thereby performing function applications and data processing, that is, implementing the control method for the air conditioner in the above-mentioned embodiments.

[0121] The memory 401 can include a program storage area and a data storage area. The program storage area can store an operating system and at least one application required by a function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 401 can include a high-speed random access memory, and can also include a non-volatile memory.

[0122] In combination Figure 11As shown, the air conditioner 600 provided by the embodiment of the present disclosure comprises: an indoor unit and the control device 300 for the air conditioner described above. The indoor unit comprises a natural air duct, a heat exchange air duct, a mixed air zone and a flow guide device. The natural air duct guides the natural air sucked by the indoor unit to the mixed air zone, the heat exchange air duct guides the heat exchange air to the mixed air zone, and the natural air and the heat exchange air are mixed to form mixed air in the mixed air zone and then enter the indoor area. The flow guide device is used to control the flow rate of the natural air flowing into the mixed air zone and adjust the mixing speed of the natural air and the heat exchange air. The control device 300 for the air conditioner is installed on the flow guide device. The installation relationship described herein is not limited to placing inside the product, but also includes installation connection with other components of the product, including but not limited to physical connection, electrical connection or signal transmission connection, etc. Those skilled in the art can understand that the control device 300 for the air conditioner can be adapted to the feasible product body, and thus realize other feasible embodiments.

[0123] The embodiment of the present disclosure provides a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are configured to execute the control method for the air conditioner.

[0124] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0125] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. various media that can store program codes, or a transitory storage medium.

[0126] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0127] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0128] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to apparatuses, devices, etc.), can be implemented in other manners. For example, the described apparatus embodiments can be implemented only in a form of a logical function, and can be implemented by using a manner such as software (for example, application program) or the like. In some embodiments, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or indirect coupling between different units, or the coupling or direct coupling or indirect coupling between the displayed or discussed communication connections can be in a form of electrical, mechanical or other forms.

[0129] The flowcharts and block diagrams in the drawings show the possible implementation architectures, functions and operations of the system, method and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment or a part of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks can occur in an order different from that noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the drawings, the operations or steps corresponding to different blocks can also occur in an order different from that disclosed in the descriptions, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for an air conditioner, an indoor unit of which comprises a natural air channel, a heat exchange air channel and a mixing air zone, the natural air channel guiding natural air sucked in from the indoor to the mixing air zone, the heat exchange air channel guiding heat exchange air to the mixing air zone, the natural air and the heat exchange air mixing to form mixed air in the mixing air zone and then entering an indoor area, characterized in that, The indoor unit further comprises a flow guiding device for controlling the flow rate of the natural wind flowing into the mixing area, and the method comprises: obtaining a current ambient temperature of a space associated with the air conditioner when the air conditioner is operating in the cooling mode; controlling the rotating speed of the flow guiding device to adjust the mixing speed of the natural wind and the heat exchange wind to adjust the heat exchange efficiency in the target time period when the absolute value of the difference between the ambient temperature and the temperature threshold is less than the critical threshold value; wherein the target time period represents a time period during which the ambient temperature is updated from the current ambient temperature to the temperature threshold.

2. The method of claim 1, wherein, The control of the rotating speed of the flow guiding device comprises: acquiring a current ambient temperature T pre the difference ΔT from the temperature threshold T set ​ determining a target rotating speed according to the difference ΔT and the critical threshold value; controlling the operation of the cross-flow fan according to the target rotating speed.

3. The method of claim 2, wherein, The determination of the target rotating speed according to the difference ΔT and the critical threshold value comprises: determining a rotating speed coefficient K according to the difference ΔT and the critical threshold value. Based on the speed coefficient K and the lower speed threshold v min Determine the target rotational speed v tar v tar =K·v min ; wherein or ΔT = T pre - T set , T threshold represents a critical threshold.

4. The method of claim 3, wherein, In the case where T pre > T set he control of the operation of the cross-flow fan in accordance with the target rotation speed, The control of the rotating speed of the flow guiding device comprises: In the case that v min ≤ v tar , the cross flow fan is controlled to operate at v rat ; and in the case that v tar > v , the cross flow fan is controlled to operate at v . In the case where v tar ≥ v rat , the cross flow fan is controlled to operate at v rat . In the case where v tar < v min , the cross flow fan is controlled to operate at v min ; wherein v tar represents a target rotational speed of the cross-flow fan, v min represents a lower threshold value of the rotational speed of the cross-flow fan, v rat represents a rated value of the rotational speed of the cross-flow fan.

5. The method of claim 3, wherein, In and T pre ≤T set , the controlling the operation of the cross-flow fan according to the target rotation speed includes: acquire reference ambient temperature values T1, T2,..., Tn at different times within a preset time period 2n n ≥ 2 and n ∈ N; obtaining a temperature difference value T of the reference ambient temperature values of every two adjacent time points 2n -T 2n-1 and a sum value ∑ of all temperature difference values within a preset time period sum ; In ∑ sum In case of ≤ 0, control the cross-flow fan to be closed; wherein∑ sum = (T2-T1) + (T4-T3) +... + (T 2n -T 2n-1 ).

6. The method according to any one of claims 1 to 5, characterized in that, controlling the rotating speed of the flow guiding device according to the rotating speed coefficient K. The control of the rotating speed of the flow guiding device comprises:

7. The method of claim 6, wherein, controlling the rotating speed of the flow guiding device according to the rotating speed coefficient K. The control of the rotating speed of the flow guiding device comprises: controlling the rotating speed of the flow guiding device according to the rotating speed coefficient K. The control of the rotating speed of the flow guiding device comprises:

8. The method of claim 6, wherein, controlling the rotating speed of the flow guiding device according to the rotating speed coefficient K. The control of the rotating speed of the flow guiding device comprises:

9. A control device for an air conditioner comprising a processor and a memory having stored program instructions, characterized in that, controlling the rotating speed of the flow guiding device according to the rotating speed coefficient K.

10. An air conditioner comprising an indoor unit, the indoor unit comprising a natural air duct, a heat exchange air duct and a mixed air zone, the natural air duct guiding natural air sucked from an indoor area to the mixed air zone, the heat exchange air duct guiding heat exchange air to the mixed air zone, the natural air and the heat exchange air being mixed to form mixed air in the mixed air zone and then entering the indoor area; characterized in that, The control of the rotating speed of the flow guiding device comprises: controlling the rotating speed of the flow guiding device according to the rotating speed coefficient K. The control of the rotating speed of the flow guiding device comprises:

11. A storage medium storing program instructions, characterized in that, controlling the rotating speed of the flow guiding device according to the rotating speed coefficient K. The processor is configured to execute the control method for the air conditioner as claimed in any one of claims 1 to 8 when the program instructions are executed. The indoor unit further comprises: a flow guiding device for controlling the flow rate of the natural wind flowing into the mixing area to adjust the mixing speed of the natural wind and the heat exchange wind; The control device for the air conditioner as claimed in claim 9 is installed in the flow guiding device. The program instructions are executed to perform the control method for the air conditioner as claimed in any one of claims 1 to 8.

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