An air conditioner and a comfort energy-saving control method of the air conditioner

Abstract

The application discloses an air conditioner and a comfort energy-saving control method thereof. After receiving a comfort energy-saving mode starting instruction, the comfort energy-saving mode is started. When no temperature-reached shutdown is detected, a first set temperature is taken as a current set temperature to control the compressor to run. When a difference between the initial environment temperature and the current environment temperature detected in real time is not less than a first threshold value and no temperature-reached shutdown is still detected, the current environment temperature at the time is taken as a first environment temperature, a second set temperature is taken as the current set temperature to control the compressor to run. When a difference between the first environment temperature and the current environment temperature detected in real time is not less than a second threshold value and no temperature-reached shutdown is still detected, a third set temperature is taken as the current set temperature to control the compressor to run. Through the technical means of the embodiment, the running frequency of the unit and the indoor temperature are continuously adjusted under the condition that the air conditioner is in the temperature-reached shutdown state, so that the effect of accurate temperature control and energy-saving emission reduction is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and particularly to an air conditioner and a comfortable energy-saving control method of the air conditioner. BACKGROUND

[0002] With the improvement of living standards, the air conditioner has become an essential product in people's daily life. When the air conditioner operates in the cooling mode, the working parameters of the air conditioner can be adjusted according to the temperature difference between the environment temperature and the set temperature, so as to control the operation of the air conditioner.

[0003] When the existing air conditioner starts to operate, the compressor is operated at a high frequency in order to pursue the refrigeration effect, and operates according to the set temperature. When the environment temperature does not reach the set temperature, the air conditioner will keep high-frequency operation for a long time, and when the preset temperature is reached, the temperature-reached stop will be executed. However, the temperature-reached stop control is easy to cause the indoor environment temperature to fluctuate, and leads to the repeated start and stop of the air conditioner, resulting in energy waste. Moreover, the set temperature at the time of temperature-reached stop is not necessarily the final temperature used by the user, at this time the user needs to manually increase the set temperature to prevent the temperature from being too low. After increasing the set temperature, the environment temperature will be further close to or lower than the set temperature, at this time the frequency conversion unit has reached the temperature-reached stop when the frequency conversion unit is not reduced, resulting in slow response speed of the frequency conversion unit. At this time, the energy consumption of the user during use will be large, the indoor temperature will fluctuate intensively, and the use experience and physical and mental health of the user will be seriously affected. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide an air conditioner and a comfortable energy-saving control method of the air conditioner, to realize the effects of accurate temperature control and comfortable energy-saving emission reduction, and to create a more comfortable use environment.

[0005] The embodiments of the present application provide an air conditioner, comprising a controller, configured to:

[0006] After receiving a comfortable energy-saving mode start instruction, an initial environment temperature is acquired, and the compressor is controlled to operate with preset control parameters;

[0007] When the temperature-reached stop is not detected, a first set temperature is taken as a current set temperature to control the compressor to operate, and the current environment temperature is detected in real time;

[0008] When the difference between the initial environment temperature and the current environment temperature detected in real time is not less than a first threshold value, and the temperature-reached stop is still not detected, the current environment temperature at this time is taken as a first environment temperature, a second set temperature is taken as a current set temperature to control the compressor to operate, and the current environment temperature is detected in real time;

[0009] When the difference between the first environment temperature and the current environment temperature detected in real time is not less than a second threshold value, and the temperature-reached stop is still not detected, a third set temperature is taken as a current set temperature to control the compressor to operate.

[0010] wherein the first set temperature is not lower than the second set temperature, and the second set temperature is not lower than the third set temperature.

[0011] Preferably, the controller is further configured to:

[0012] when the difference between the initial ambient temperature and the real-time detected current ambient temperature is less than a first threshold value, and the time of running at the first set temperature as the current set temperature exceeds a first preset time length, a fourth set temperature is taken as the current set temperature to control the compressor to run, and the current ambient temperature is detected in real time;

[0013] when the time of running at the fourth set temperature as the current set temperature does not exceed a second preset time length, and the difference between the initial ambient temperature and the real-time detected current ambient temperature is not less than the first threshold value, and the occurrence of the temperature-reached shutdown has not been detected, the current ambient temperature at this time is taken as the first ambient temperature, the second set temperature is taken as the current set temperature to control the compressor to run, and the current ambient temperature is detected in real time.

[0014] As an improvement of the above-mentioned scheme, the controller is further configured to:

[0015] when the time of running at the fourth set temperature as the current set temperature exceeds the second preset time length, and the difference between the initial ambient temperature and the real-time detected current ambient temperature is less than the first threshold value, a first-stage abnormality alarm is output.

[0016] As a preferred scheme, the controller is further configured to:

[0017] when the difference between the first ambient temperature and the real-time detected current ambient temperature is less than a second threshold value, and the time of running at the second set temperature as the current set temperature exceeds a third preset time length, a fifth set temperature is taken as the current set temperature to control the compressor to run, and the current ambient temperature is detected in real time;

[0018] when the time of running at the fifth set temperature as the current set temperature does not exceed a fourth preset time length, and the difference between the first ambient temperature and the real-time detected current ambient temperature is less than the second threshold value, and the occurrence of the temperature-reached shutdown has not been detected, a third set temperature is taken as the current set temperature to control the compressor to run.

[0019] Further, the controller is further configured to:

[0020] when the time of running at the fifth set temperature as the current set temperature exceeds the fourth preset time length, and the difference between the first ambient temperature and the real-time detected current ambient temperature is less than the second threshold value, a second-stage working abnormality alarm is output.

[0021] Preferably, the controller is further configured to:

[0022] when it is detected that the temperature-reached shutdown occurs and the current set temperature of the compressor operation is lower than the sixth set temperature, controlling the compressor operation with the seventh set temperature as the current set temperature and detecting the current ambient temperature in real time;

[0023] when the difference between the initial ambient temperature and the current ambient temperature detected in real time is not less than the third threshold value, taking the current ambient temperature at this time as the latest ambient temperature and increasing the current set temperature by a preset amplitude based on the seventh set temperature;

[0024] when the increased set temperature is lower than the sixth set temperature and the difference between the latest ambient temperature and the current ambient temperature detected in real time is not less than the fourth threshold value, continuously updating the ambient temperature with the current ambient temperature at this time and continuously increasing the current set temperature by a preset amplitude;

[0025] when the increased set temperature is not lower than the sixth set temperature, taking the third set temperature as the current set temperature to control the compressor operation;

[0026] wherein the seventh set temperature is not higher than the third set temperature.

[0027] As an improvement of the above-mentioned scheme, the controller is further configured to:

[0028] when the difference between the initial ambient temperature and the current ambient temperature detected in real time is less than the third threshold value and the time of operation with the seventh set temperature as the current set temperature exceeds the fifth preset time length, taking the eighth set temperature as the current set temperature to control the compressor operation and detecting the current ambient temperature in real time;

[0029] when the time of operation with the eighth set temperature as the current set temperature does not exceed the sixth preset time length and the difference between the initial ambient temperature and the current ambient temperature detected in real time is not less than the third threshold value, taking the current ambient temperature at this time as the ambient temperature and increasing the current set temperature by a preset amplitude based on the seventh set temperature;

[0030] when the time of operation with the eighth set temperature as the current set temperature exceeds the sixth preset time length and the difference between the initial ambient temperature and the current ambient temperature detected in real time is less than the third threshold value, outputting a third-stage working abnormality alarm.

[0031] Preferably, the controller is further configured to:

[0032] when it is detected that the temperature-reached shutdown occurs and the current set temperature of the compressor operation is not lower than the sixth set temperature, controlling the compressor operation according to the third set temperature.

[0033] As a preferred solution, the controller is further configured to:

[0034] exit the comfort energy-saving mode after receiving a comfort energy-saving mode exit instruction;

[0035] exit the comfort energy-saving mode and turn off the air conditioner after receiving a shutdown instruction.

[0036] The embodiment of the present application further provides a comfort energy-saving control method of an air conditioner, and the method comprises:

[0037] acquire an initial ambient temperature after receiving a comfort energy-saving mode start instruction, and control the compressor to operate with preset control parameters;

[0038] control the compressor to operate with the first set temperature as a current set temperature when no temperature-reached shutdown is detected, and detect the current ambient temperature in real time;

[0039] control the compressor to operate with the second set temperature as the current set temperature when the difference between the initial ambient temperature and the current ambient temperature detected in real time is not less than a first threshold value and no temperature-reached shutdown is still detected, and detect the current ambient temperature in real time;

[0040] control the compressor to operate with the third set temperature as the current set temperature when the difference between the first ambient temperature and the current ambient temperature detected in real time is not less than a second threshold value and no temperature-reached shutdown is still detected.

[0041] wherein the first set temperature is not lower than the second set temperature, and the second set temperature is not lower than the third set temperature.

[0042] Compared with the prior art, the air conditioner and the comfortable energy-saving control method of the air conditioner disclosed by the application, after receiving a comfortable energy-saving mode starting instruction, an initial environment temperature is acquired, and a compressor is controlled to operate with preset control parameters; when a temperature-reached shutdown is not detected, a first set temperature is taken as a current set temperature to control the compressor to operate, and a current environment temperature is detected in real time; when a difference between the initial environment temperature and the current environment temperature detected in real time is not less than a first threshold value, and the temperature-reached shutdown is still not detected, the current environment temperature at this time is taken as a first environment temperature, a second set temperature is taken as the current set temperature to control the compressor to operate, and the current environment temperature is detected in real time; when a difference between the first environment temperature and the current environment temperature detected in real time is not less than a second threshold value, and the temperature-reached shutdown is still not detected, a third set temperature is taken as the current set temperature to control the compressor to operate; wherein the first set temperature is not lower than the second set temperature, and the second set temperature is not lower than the third set temperature. By adopting the technical means of the embodiment of the application, the air conditioner is ensured to adjust the temperature difference in a gradient mode and to continuously adjust the operating frequency of the unit in a gradient mode under the condition that the temperature-reached shutdown is not reached, so that the effects of accurate temperature control and energy saving and emission reduction are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 is a structural schematic diagram of an air conditioner in an embodiment provided by the application;

[0044] Figure 2 is a partial structural schematic diagram of a refrigerant circuit of the air conditioner in the embodiment of the application;

[0045] Figure 3 is a partial structural schematic diagram of the air conditioner in another embodiment of the application;

[0046] Figure 4 is a flow schematic diagram of work performed by a controller in a first embodiment;

[0047] Figure 5 is a flow schematic diagram of work performed by the controller in a second embodiment;

[0048] Figure 6 is a flow schematic diagram of work performed by the controller in a third embodiment;

[0049] Figure 7 is a flow schematic diagram of work performed by the controller in a fourth embodiment;

[0050] Figure 8 is a flow schematic diagram of work performed by the controller in a fifth embodiment;

[0051] Figure 9 is a flowchart of the controller performing work in the sixth embodiment of the present application;

[0052] Figure 10 is a flowchart of the controller performing work in the seventh embodiment of the present application

[0053] Figure 11 is a flowchart of the controller performing work in the eighth embodiment of the present application. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0055] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0056] The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0057] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] Reference is made to Figure 1FIG. 1 is a structural schematic diagram of an air conditioner according to an embodiment of the present application. The air conditioner 100 according to the embodiment of the present application includes an indoor unit 110 and an outdoor unit 120. The indoor unit 110 is usually disposed in an indoor space, and can be in the form of a wall-mounted indoor unit or a cabinet-type indoor unit. The outdoor unit 120 is usually disposed in an outdoor space, and is used for heat exchange with an indoor environment. The air conditioner 100 has a refrigerant circuit 130, and is capable of performing a vapor compression refrigeration cycle by circulating a refrigerant in the refrigerant circuit 130. The refrigerant circuit 130 is connected to the indoor unit 110 and the outdoor unit 120 by using connection pipes, and is used for circulation of the refrigerant.

[0059] Referring to Figure 2 FIG. 2 is a partial structural schematic diagram of a refrigerant circuit of an air conditioner according to an embodiment of the present application. The air conditioner according to the embodiment of the present application performs a refrigeration cycle of the air conditioner by using a compressor 131, an indoor heat exchanger 132, an expansion valve 133, and an outdoor heat exchanger 134. The refrigeration cycle includes a series of processes, such as compression, condensation, expansion, and evaporation, and supplies a refrigerant to air that has been adjusted and heat-exchanged. The indoor heat exchanger 132 is usually provided in the indoor unit 110, the compressor 131 and the outdoor heat exchanger 134 are usually provided in the outdoor unit 120, and the expansion valve 133 can be provided in the indoor unit 110 or the outdoor unit 120. The indoor heat exchanger 132 and the outdoor heat exchanger 134 are used as a condenser or an evaporator, and when the indoor heat exchanger 132 is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger 132 is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

[0060] The compressor 131 compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into a condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. The expansion valve 133 expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. An evaporator evaporates the refrigerant expanded in the expansion valve 133, and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor 131. The evaporator can achieve a refrigeration effect by exchanging heat with a material to be cooled using latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner can adjust the temperature of an indoor space.

[0061] Referring to Figure 3Fig. 2 is a partial structural schematic diagram of the air conditioner in another embodiment of the present application, the housing of the indoor unit 110 is provided with an indoor heat exchanger 132, an indoor fan 111, and a guide vane plate for guiding air, which comprises a plurality of horizontal guide vane plates 112 and vertical guide vane plates 113. The indoor fan 111 is configured to change the air volume when blowing out the conditioned air that has been heat-exchanged by the indoor heat exchanger. The guide vane plate is configured to swing the blowing direction of the conditioned air blown out from the indoor fan, wherein the horizontal guide vane plate 112 is used to adjust the up-down blowing direction, and the vertical guide vane plate 113 is used to adjust the left-right blowing direction. The outdoor unit 120 is provided with a compressor 131 and an outdoor heat exchanger 134, and further comprises an outdoor fan 121. The outdoor fan 121 generates an air flow of outdoor air through the outdoor heat exchanger 134 to promote the heat exchange between the refrigerant flowing in the heat transfer pipe and the outdoor air.

[0062] Further, the air conditioner 100 further comprises a controller 140, which has an outdoor control device built in the outdoor unit 120 and an indoor control device built in the indoor unit 110. The outdoor control device and the indoor control device are connected to each other by a signal line and can send / receive signals to each other, so as to realize the information acquisition and control instruction issuing of each component of the air conditioner.

[0063] In the embodiment of the present application, referring to Figure 4 Fig. 3 is a flow diagram of the work performed by the controller in the first embodiment, the controller 140 can respond to the preset comfort energy-saving control instruction to perform the comfort energy-saving control operation of the air conditioner, which specifically comprises steps S1-S4:

[0064] S1, after receiving the comfort energy-saving mode starting instruction, obtaining the initial environment temperature and controlling the compressor to run with the preset control parameter;

[0065] S2, when the temperature-reached stoppage is not detected, taking the first set temperature as the current set temperature to control the compressor to run, and detecting the current environment temperature in real time;

[0066] S3, when the difference between the initial environment temperature and the current environment temperature detected in real time is not less than the first threshold value, and the temperature-reached stoppage is still not detected, taking the current environment temperature at this time as the first environment temperature, taking the second set temperature as the current set temperature to control the compressor to run, and detecting the current environment temperature in real time;

[0067] S4, when the difference between the first environment temperature and the current environment temperature detected in real time is not less than the second threshold value, and the temperature-reached stoppage is still not detected, taking the third set temperature as the current set temperature to control the compressor to run;

[0068] Wherein, the first set temperature is not lower than the second set temperature, and the second set temperature is not lower than the third set temperature.

[0069] In an embodiment of the present invention, see Figure 5 A flowchart illustrating the work performed by the controller in the second implementation of this invention.

[0070] S501, the air conditioner has started cooling operation;

[0071] S502, determine whether a mode enable command has been received?

[0072] If so, return to step S502 and continue to check whether the comfort and energy-saving mode is activated;

[0073] If not, proceed to step S503 to activate the comfort and energy-saving mode;

[0074] S503: Activate Comfort & Energy Saving Mode, acquire the initial ambient temperature T0, and control the compressor operation according to preset control parameters. At this time, the current indoor temperature is acquired by the temperature sensor as the initial ambient temperature, and the unit will simultaneously enter the fan speed adaptive adjustment control mode and the temperature adaptive adjustment control mode.

[0075] S504, Determine if a temperature-reaching shutdown has occurred? This involves detecting whether the air conditioner has experienced a temperature-reaching shutdown since its initial startup.

[0076] If not, proceed to step S505, indicating that the air conditioner has not yet reached the temperature and stopped, i.e., it has not reached the stop temperature.

[0077] S505, the compressor is controlled to run using the first set temperature W1 as the current set temperature, and the current ambient temperature T is detected in real time;

[0078] S506, determine whether the difference between the initial ambient temperature T0 and the current ambient temperature T detected at this time is not less than the first threshold σ1? That is, determine whether T0-T≥σ1 holds true;

[0079] If not, continue to execute step S505 and continue to control the compressor to run using the first set temperature W1 as the current set temperature;

[0080] If so, proceed to step S507, that is, after the room temperature drops beyond the first threshold range, further control is implemented;

[0081] It should be noted that the first threshold is generally set relatively high, such as 6°C, in order to quickly lower the room temperature when the air conditioner is initially started, thereby improving the user experience.

[0082] It should be noted that when the air conditioner is used for refrigeration, the difference between the current environment temperature T and the initial environment temperature T0 is positive, at this time the size of the difference between the current environment temperature T and the initial environment temperature T0 and the first threshold σ1 can be directly judged; when the air conditioner is used for heating, the difference between the current environment temperature T and the initial environment temperature T0 is negative, at this time the size of the difference between the current environment temperature T and the initial environment temperature T0 and the first threshold σ1 needs to be judged.

[0083] S507, whether the temperature reaching stop occurs?

[0084] If yes, return to step S504;

[0085] If no, execute step S508, indicating that the air conditioner does not appear to reach the temperature stop at this time, that is, the stop temperature is not reached;

[0086] S508, the current environment temperature at this time is taken as the first environment temperature T1, the second set temperature W2 is taken as the current set temperature to control the compressor to run, and the current environment temperature is detected in real time;

[0087] S509, whether the difference between the first environment temperature T1 and the current environment temperature T detected at this time is not less than the second threshold σ2? That is, whether T-T1≥σ2 is established;

[0088] If no, continue to execute step S508 to continue to control the compressor to run with the second set temperature W2 as the current set temperature;

[0089] If yes, execute step S510, that is, after the room temperature drops by more than the first threshold range, continue to adjust the control;

[0090] It should be noted that the second threshold can be set to be less than the first threshold, which can be set to a slightly smaller value, which can be set to 2℃, so as to slowly adjust the room temperature to a suitable temperature after the air conditioner initially reduces the room temperature, avoid the user from being uncomfortable due to the large temperature difference, and improve the user experience.

[0091] It should be noted that when the air conditioner is used for refrigeration, the difference between the current environment temperature T and the first environment temperature T1 is positive, at this time the size of the difference between the current environment temperature T and the first environment temperature T1 and the second threshold σ2 can be directly judged; when the air conditioner is used for heating, the difference between the current environment temperature T and the first environment temperature T1 is negative, at this time the size of the difference between the current environment temperature T and the first environment temperature T1 and the second threshold σ2 needs to be judged.

[0092] S510, whether the temperature reaching stop occurs?

[0093] If no, execute step S511, indicating that the air conditioner does not appear to reach the temperature stop at this time, that is, the stop temperature is not reached;

[0094] S511, the third set temperature W3 is taken as the current set temperature to control the compressor to run.

[0095] In the specific implementation of the embodiment, when the air conditioner does not detect the occurrence of the temperature stop, the first control mode is run, that is, the above steps are executed.

[0096] It should be noted that when the air conditioner is in the cooling mode, the first set temperature is not lower than the second set temperature, the second set temperature is not lower than the third set temperature, and the first set temperature is generally set to 16-22 degrees Celsius, so that the compressor of the air conditioner is controlled to run at a high speed and a high frequency to rapidly cool the indoor environment. After the indoor temperature is rapidly reduced, the set temperature of the air conditioner is gradually increased when the indoor temperature is reduced by a certain amplitude, so that the speed and the frequency of the compressor of the air conditioner are gradually reduced, and the indoor temperature is slowly reduced again. When the indoor temperature is increased by a certain amplitude again, the compressor of the air conditioner is controlled to run at a stable speed by the set temperature. The third set temperature is generally set to 26-27 degrees Celsius, which is a comfortable temperature for human body. In this process, it is continuously detected whether the temperature stop occurs, so that the air conditioner is adjusted in a gradient mode when the temperature stop does not occur, and the running frequency of the air conditioner is continuously adjusted in a gradient mode, so that the air conditioner is accurately controlled and energy saving and emission reduction are achieved.

[0097] Correspondingly, when the air conditioner is used for heating, the first set temperature is not higher than the second set temperature when the air conditioner is in the heating mode, and the second set temperature is not higher than the third set temperature, so that the compressor of the air conditioner is controlled to run at a high speed and a high frequency to rapidly heat the indoor environment. After the indoor temperature is rapidly increased, the set temperature of the air conditioner is gradually reduced when the indoor temperature is increased by a certain amplitude, so that the speed and the frequency of the compressor of the air conditioner are gradually reduced, and the indoor temperature is slowly heated again. When the indoor temperature is increased by a certain amplitude again, the compressor of the air conditioner is controlled to run at a stable speed by the set temperature. In this process, it is continuously detected whether the temperature stop occurs, so that the air conditioner is adjusted in a gradient mode when the temperature stop does not occur, and the running frequency of the air conditioner is continuously adjusted in a gradient mode, so that the air conditioner is accurately controlled and energy saving and emission reduction are achieved.

[0098] In another embodiment of the present application, the controller is further configured to:

[0099] When the difference between the initial environment temperature and the current environment temperature detected in real time is less than the first threshold value, and the time when the compressor runs at the first set temperature exceeds the first preset time length, the fourth set temperature is taken as the current set temperature to control the compressor to run, and the current environment temperature is detected in real time.

[0100] When the time of running with the fourth set temperature as the current set temperature does not exceed the second preset time length, the difference between the initial environment temperature and the current environment temperature detected in real time is not less than the first threshold value, and the occurrence of the temperature reaching stoppage has not been detected, the current environment temperature at this time is taken as the first environment temperature, the second set temperature is taken as the current set temperature to control the compressor to run, and the current environment temperature is detected in real time.

[0101] In the implementation of the embodiment, when the compressor is controlled to run with the corresponding set temperature, the running time also needs to be considered, see Figure 6 FIG. 3 is a flowchart of the work of the controller in the third implementation of the embodiment of the application; the specific control process of the controller includes the following steps:

[0102] S601, starting the comfortable energy-saving mode, acquiring an initial environment temperature T0, and controlling the compressor to run with preset control parameters. At this time, the current indoor temperature is acquired by a temperature sensor as the initial environment temperature, and the unit will synchronously enter the wind damper self-adaptive adjustment control mode and the temperature self-adaptive adjustment control mode.

[0103] S602, judging whether the temperature reaching stoppage has occurred. That is, detecting whether the temperature reaching stoppage has occurred since the air conditioner is started this time to the current time.

[0104] If not, step S603 is executed, indicating that the temperature reaching stoppage has not occurred in the air conditioner at this time, that is, the stoppage temperature has not been reached.

[0105] S603, taking the first set temperature W1 as the current set temperature to control the compressor to run, and detecting the current environment temperature T in real time.

[0106] S604, judging whether the difference between the current environment temperature T detected at this time and the initial environment temperature T0 is not less than the first threshold value σ1? That is, judging whether T-T0≥σ1 is established.

[0107] If yes, step S605 is executed, that is, after the room temperature drops by more than the first threshold value range, further control is performed.

[0108] If not, that is, T-T0≤σ1, that is, the room temperature does not drop by more than the first threshold value range, step S606 is executed.

[0109] S605, judging whether the temperature reaching stoppage has occurred, and continuing to execute the steps corresponding to S507 in the first embodiment.

[0110] S606, judging whether the time of running with the first set temperature W1 as the current set temperature exceeds the first preset time length t1?

[0111] If no, return to step S603, i.e. continue to work at the first set temperature W1, continue to judge the temperature difference, and continue to judge the working time length;

[0112] If yes, execute step S607;

[0113] S607, control the compressor to work at the fourth set temperature W4 as the current set temperature, and detect the current environment temperature in real time; i.e. the indoor temperature difference has not been reduced by the first threshold value after the first set temperature W1 works for the first preset time length t1, at this time, the set temperature can be changed.

[0114] It should be noted that the first preset time length t1 is generally set to 15-20 mins, and a slightly longer working time length is set to facilitate reducing the temperature to a certain threshold value in the rapid cooling stage;

[0115] It should be noted that the fourth set temperature can be set to be the same as the first set temperature, or can be lower than the first set temperature, the speed and frequency are increased, and the rapid cooling is continued.

[0116] S608, judge whether the time of working at the fourth set temperature W4 exceeds the second preset time length t2?

[0117] If no, return to step S607, continue to control the compressor to work at the fourth set temperature W4 as the current set temperature;

[0118] If yes, execute step S609;

[0119] It should be noted that the second preset time length t2 can be set to be the same as the first preset time length t1, and can be set to 15-20 mins to reduce the temperature to a certain threshold value in the rapid cooling stage, or be adjusted according to the actual situation;

[0120] S609, judge whether the difference between the initial environment temperature T0 and the current environment temperature T detected at this time is not less than the first threshold value σ1? i.e. judge whether T0-T≥σ1 is true;

[0121] If yes, judge whether the temperature-reached shutdown occurs, and continue to execute the steps corresponding to S507 in the first embodiment; when the temperature-reached shutdown has not been detected, the current environment temperature at this time is taken as the first environment temperature, the compressor is controlled to work at the second set temperature as the current set temperature, and the current environment temperature is detected in real time.

[0122] When the compressor is controlled to work at the corresponding set temperature, the working time also needs to be considered, when the first threshold value of the cooling target is not completed within the first set time, the compressor speed can be increased by reducing the set temperature to improve the cooling efficiency, and the continuous energy consumption caused by continuously cooling at the first set temperature without completing the first threshold value of the cooling target is avoided.

[0123] In a further embodiment provided by the present application, the controller is further configured to:

[0124] output a first-stage abnormality alarm when the time for running at the fourth set temperature as the current set temperature exceeds the second preset time length, and the difference between the initial ambient temperature and the current ambient temperature detected in real time is less than the first threshold value.

[0125] In the specific implementation of the embodiment, referring to Figure 6 , in the process of controller control, when it is determined in step S609 that the difference between the current ambient temperature T detected at the moment and the initial ambient temperature T0 is less than the first threshold value σ1, step S610 is performed.

[0126] S610, output a first-stage abnormality alarm.

[0127] After the first set temperature is used for continuous work for the first preset time length and the first threshold value of the cooling target cannot be achieved, and after the fourth set temperature is used for continuous work for the second preset time length and the first threshold value of the cooling target cannot be achieved, the working state of the air conditioner is abnormal at this moment, long-time high-power work cannot achieve effective cooling, a first-stage abnormality alarm is output to remind the user to handle, so as to avoid the loss caused by the continuous high-power work and the low-efficiency cooling of the air conditioner.

[0128] It should be noted that the reason for the first abnormality stage alarm may be the state of the air conditioner itself, the snow type, or the abnormal work of the device, or the poor airtightness of the room leading to too much cooling loss, which needs to be checked by the user.

[0129] In a further embodiment provided by the present application, the controller is further configured to:

[0130] when the difference between the first ambient temperature and the current ambient temperature detected in real time is less than the second threshold value, and the time for running at the second set temperature as the current set temperature exceeds the third preset time length, the fifth set temperature is used as the current set temperature to control the compressor to run, and the current ambient temperature is detected in real time.

[0131] when the time for running at the fifth set temperature as the current set temperature does not exceed the fourth preset time length, and the difference between the first ambient temperature and the current ambient temperature detected in real time is less than the second threshold value, and the temperature-reached stoppage has not yet been detected, the third set temperature is used as the current set temperature to control the compressor to run.

[0132] In the specific implementation of the embodiment, when the compressor is controlled to work at the corresponding set temperature, the running time also needs to be considered, referring to Figure 7is a flowchart of the controller in the fourth embodiment of the present application; the specific control process of the controller includes the following steps:

[0133] S701, taking the current ambient temperature at this time as the first ambient temperature T1, taking the second set temperature W2 as the current set temperature to control the compressor to run, and detecting the current ambient temperature in real time, that is, corresponding to performing step S508 in the above embodiment;

[0134] S702, whether the difference between the first ambient temperature T1 and the current ambient temperature T detected at this time is not less than the second threshold σ2? That is, whether T1-T≥σ2 is established;

[0135] If yes, step S703 is executed, that is, when the room temperature drops more than the second threshold range, further control is performed;

[0136] If not, that is, T-T0≤σ1, that is, the room temperature drop does not exceed the second threshold range, step S704 is executed;

[0137] S703, whether the temperature reaches the stop appears, continue to execute from the first embodiment corresponding to S510 step execution;

[0138] S704, whether the time of running with the second set temperature W2 as the current set temperature exceeds the third preset time t3;

[0139] If not, return to step S701, that is, continue to work with the second set temperature W2, continue to judge the temperature difference, and continue to judge the working time;

[0140] If yes, step S705 is executed;

[0141] S705, taking the fifth set temperature W5 as the current set temperature to control the compressor to run, and detecting the current ambient temperature in real time; That is, after the second set temperature W2 works for the third preset time t3, the indoor temperature difference still does not drop by the second threshold, at this time, the set temperature can be changed.

[0142] It should be noted that the third preset time t3 is generally set to 5-10 minutes to avoid setting too short time, which is difficult to achieve the second threshold temperature drop target, and may cause the user to feel uncomfortable due to too fast cooling;

[0143] It should be noted that the fifth set temperature can be set to be the same as the second set temperature, or lower than the second set temperature, to increase the speed and frequency and continue to cool quickly.

[0144] S706, whether the time of running with the fifth set temperature W5 exceeds the fourth preset time t4?

[0145] If no, return to step S705, continue to control the compressor to run with the fifth set temperature W5 as the current set temperature;

[0146] If yes, execute step S707;

[0147] It should be noted that the fourth preset time length t4 can be set to be the same as the third preset time length t3, and can be set to 5-10 mins to reduce the temperature to a certain threshold, or adjusted according to actual conditions;

[0148] S707, judge whether the difference between the first environment temperature T1 and the current environment temperature T detected at this time is not less than the second threshold σ2? That is, judge whether T1-T≥σ2 is true;

[0149] If yes, judge whether the temperature-reached shutdown occurs, execute step S703, that is, continue to execute the steps corresponding to S510 in the first embodiment; when the temperature-reached shutdown has not been detected, control the compressor to run with the third set temperature as the current set temperature.

[0150] When the compressor is controlled to run with the corresponding set temperature, the running time also needs to be considered. When the second threshold temperature reduction target is not completed within the third set time, the compressor speed can be increased by reducing the set temperature to improve the temperature reduction efficiency, and the continuous energy loss caused by the continuous temperature reduction with the second set temperature but unable to complete the second threshold temperature reduction target can be avoided.

[0151] In another embodiment provided by the application, the controller is further configured to:

[0152] When the time of running with the fifth set temperature as the current set temperature exceeds the fourth preset time length, and the difference between the first environment temperature and the current environment temperature detected in real time is less than the second threshold, output a second-stage working abnormality alarm.

[0153] In the specific implementation of the embodiment, referring to Figure 7 , in the controller control process, when it is judged in step S707 that the difference between the current environment temperature T detected at this time and the first environment temperature T1 is less than the second threshold σ2, execute step S708;

[0154] S708, output a second-stage working abnormality alarm;

[0155] After the second set temperature is used to continuously work for the second preset time length and the second threshold temperature reduction target cannot be achieved, the fifth set temperature is used to continuously work for the fourth preset time length and the second threshold temperature reduction target cannot be achieved, at this time, the air conditioner is in an abnormal working state, long-time high-power work cannot achieve effective temperature reduction, a second-stage abnormality alarm is output to remind the user to handle, and the loss caused by the continuous high-power work and low-efficiency temperature reduction of the air conditioner is avoided.

[0156] It should be noted that the second abnormal stage alarm may be caused by the air conditioner itself, the snow type, the device working abnormally, or the poor airtightness of the indoor room leading to too much cold loss, which needs to be checked by the user.

[0157] In another embodiment provided by the application, the controller is further configured to:

[0158] When it is detected that the temperature reach stop occurs, and the current compressor operating set temperature is lower than the sixth set temperature, the seventh set temperature is used as the current set temperature to control the compressor to operate, and the current environment temperature is detected in real time;

[0159] When the difference between the initial environment temperature and the current environment temperature detected in real time is not less than the third threshold value, the current environment temperature at this time is used as the latest environment temperature, and the current set temperature is increased by a preset amplitude based on the seventh set temperature;

[0160] When the increased set temperature is lower than the sixth set temperature, and the difference between the latest environment temperature and the current environment temperature detected in real time is not less than the fourth threshold value, the current environment temperature at this time is used to update the environment temperature, and the current set temperature is continuously increased by a preset amplitude;

[0161] When the increased set temperature is not lower than the sixth set temperature, the third set temperature is used as the current set temperature to control the compressor to operate;

[0162] Wherein, the seventh set temperature is not greater than the third set temperature.

[0163] In the specific implementation of the embodiment, refer to Figure 8 is a flowchart of the controller performing work in the fifth embodiment in the embodiment of the application; the controller is specifically configured to perform the following steps:

[0164] S801, start the air conditioner to operate in cooling mode;

[0165] S802, determine whether a mode start instruction is received?

[0166] If yes, return to step S802 to continue to detect whether the comfortable energy-saving mode is started;

[0167] If no, execute step S803 to start the comfortable energy-saving mode;

[0168] S803, start the comfortable energy-saving mode, obtain the initial environment temperature T0, and control the compressor to operate with a preset control parameter. At this time, the current indoor temperature is obtained by the temperature sensor as the initial environment temperature, and the unit will be synchronized to enter the wind damper self-adaptive adjustment control mode and the temperature self-adaptive adjustment control mode.

[0169] S804, determining whether the temperature-reached shutdown occurs, i.e. determining whether the temperature-reached shutdown occurs from the start of the current start of the air conditioner to the current time;

[0170] If not, step S505 is executed, indicating that the temperature-reached shutdown has not occurred in the air conditioner at this time, i.e. the shutdown temperature has not been reached.

[0171] If yes, step S805 is executed, indicating that the temperature-reached shutdown has occurred in the air conditioner, i.e. the shutdown temperature has been reached.

[0172] S805, determining whether the set temperature of the current compressor operation is lower than the sixth set temperature W6;

[0173] If yes, step S806 is executed;

[0174] S806, using the seventh set temperature W7 as the current set temperature to control the compressor operation, and detecting the current environment temperature T in real time, i.e. when the temperature-reached shutdown occurs and the set temperature at this time is lower than the sixth set temperature, temperature control is performed again at this time.

[0175] It should be noted that the sixth set temperature is generally set to a human-adapted control temperature, i.e. 26-27 degrees Celsius, which can be set to the same temperature as the third set temperature. When the temperature-reached shutdown occurs in the control process in the foregoing embodiment when the air conditioner is not set to the sixth set temperature, it indicates that the temperature-reached shutdown occurs when the set temperature is lower than the comfortable temperature, and temperature control is needed at this time to avoid the air conditioner from appearing the temperature-reached shutdown and subsequently frequently appearing the temperature-reached shutdown, causing subsequent temperature changes.

[0176] The seventh set temperature is lower than the sixth set temperature, and the air conditioner is adjusted again through the seventh set temperature to make the room temperature steadily reach the human-adapted temperature.

[0177] S807, determining whether the difference between the initial environment temperature and the current environment temperature detected in real time is not less than the third threshold σ3, i.e. determining whether T0-T≥σ3 is true;

[0178] Determining whether the temperature-reached target through the seventh set temperature at this time is the third threshold;

[0179] If not, return to step S806 to continue using the seventh set temperature W7 as the current set temperature to control the compressor operation;

[0180] If yes, step S808 is executed;

[0181] S808, using the current environment temperature detected at this time as the latest environment temperature, and increasing the current set temperature by a preset amplitude based on the seventh set temperature;

[0182] The seventh set temperature is the current set temperature W i , then i is added 1 next time, and the current set temperature W i+1 of the next time is i W + ΔW, and ΔW is a preset amplitude, which is generally set to 2 degrees Celsius to achieve slow adjustment.

[0183] S809, whether the current set temperature is lower than the sixth set temperature, that is, whether the temperature of the air conditioner under the current control is lower than the sixth set temperature, that is, lower than 26 degrees Celsius;

[0184] If not, step S810 is executed;

[0185] If yes, step S811 is executed; that is, when the current set temperature does not reach the sixth set temperature, the current set temperature needs to be regulated at this time;

[0186] S810, the third set temperature is used as the current set temperature to control the compressor to run, that is, when the current set temperature reaches the sixth set temperature, no further temperature regulation is needed, and the third set temperature W3 is used as the current set temperature to control the compressor to run, that is, when the set temperature of the air conditioner reaches the preset sixth set temperature, the appropriate third set temperature is kept running.

[0187] S811, whether the difference between the latest environment temperature and the real-time detected current environment temperature is not less than the fourth threshold σ4;

[0188] If yes, return to step S808,

[0189] If not, continue to control the compressor to run at the current set temperature, and return to step S811;

[0190] When the air conditioner reaches the temperature stop and does not reach the sixth set temperature suitable for human body, the compressor is slowly adjusted by a preset amplitude, the temperature difference is slowly adjusted by the fourth threshold, until the sixth set temperature is reached. When the existing technology is used, the air conditioner stops working after reaching the temperature stop, the room temperature gradually rises until the air conditioner startup threshold is touched, and the air conditioner is started again. Subsequent temperature reaching continues to stop, which causes the air conditioner to repeatedly start and run at a temperature that is not suitable for human body, and brings loss and impact on user experience.

[0191] After the air conditioner is detected to reach the temperature stop at any time, the set temperature is judged, and when the set temperature is lower than the sixth set temperature, the second control mode is run, that is, the compressor is controlled to run according to the above steps.

[0192] The embodiment can start adaptive temperature adjustment under the temperature stop of unsuitable temperature, adjust the room temperature to a temperature suitable for human body, and avoid repeated temperature stop.

[0193] In yet another embodiment provided by the present application, the controller is further configured to:

[0194] when the difference between the initial ambient temperature and the real-time detected current ambient temperature is less than the third threshold value, and the time of running at the seventh set temperature as the current set temperature exceeds the fifth preset time length, the eighth set temperature is taken as the current set temperature to control the compressor to run, and the current ambient temperature is detected in real time;

[0195] when the time of running at the eighth set temperature as the current set temperature does not exceed the sixth preset time length, and the difference between the initial ambient temperature and the real-time detected current ambient temperature is not less than the third threshold value, the current ambient temperature at this time is taken as the ambient temperature, and the current set temperature is increased by a preset amplitude on the basis of the seventh set temperature;

[0196] when the time of running at the eighth set temperature as the current set temperature exceeds the sixth preset time length, and the difference between the initial ambient temperature and the real-time detected current ambient temperature is less than the third threshold value, a third stage working abnormality alarm is output.

[0197] In the implementation of the embodiment, under the condition of temperature reaching stop, when the compressor is controlled to work at the corresponding seventh set temperature, the running time also needs to be considered, see Figure 9 is a flowchart of the controller performing work in the sixth embodiment; the specific control process of the controller includes the following steps:

[0198] S901, the compressor is controlled to run at the seventh set temperature W7 as the current set temperature, that is, step S806 in the previous embodiment, after the air conditioner has appeared temperature reaching stop and the set temperature of the current compressor running is lower than the sixth set temperature W6, the compressor is controlled to run at the seventh set temperature W7 as the current set temperature;

[0199] S902, whether the difference between the initial ambient temperature and the real-time detected current ambient temperature is not less than the third threshold value σ3, that is, whether T0-T≥σ3 is true;

[0200] If yes, step S903 is executed;

[0201] If no, step S904 is executed;

[0202] S903, the current ambient temperature detected at this time is taken as the latest ambient temperature, and the current set temperature is increased by a preset amplitude on the basis of the seventh set temperature, that is, corresponding to step S808 in the previous embodiment;

[0203] S904, whether the time of running at the seventh set temperature as the current set temperature exceeds the fifth preset time length?

[0204] If no, return to step S901, continue to control the compressor to run at the seventh set temperature W7 as the current set temperature, continue to make the temperature difference judgment, and continue to make the working time judgment;

[0205] If yes, execute step S905;

[0206] S905, control the compressor to run at the eighth set temperature W8 as the current set temperature, and detect the current ambient temperature in real time; that is, the indoor temperature difference does not decrease by the third threshold value after the seventh set temperature W7 works for the fifth preset time t5, at which time the set temperature can be changed.

[0207] It should be noted that the fifth preset time t5 is generally set to 5-10 mins to avoid setting an excessively short time, which makes it difficult to achieve the third threshold value of the cooling target, and can cause the user to feel uncomfortable due to rapid cooling;

[0208] It should be noted that the eighth set temperature can be set to be the same as the seventh set temperature, or can be lower than the seventh set temperature, to increase the speed and frequency and continue to cool rapidly.

[0209] S906, judge whether the time of running at the eighth set temperature W8 exceeds the sixth preset time t6?

[0210] If no, return to step S905, continue to control the compressor to run at the eighth set temperature W8 as the current set temperature;

[0211] If yes, execute step S907;

[0212] It should be noted that the sixth preset time t6 can be set to be the same as the fifth preset time t5, and can be set to 5-10 mins to reduce the temperature to a certain threshold value, or can be adjusted according to the actual situation;

[0213] S907, judge whether the difference between the initial ambient temperature T0 and the current ambient temperature T detected at this time is not less than the third threshold value σ2? That is, judge whether T0-T≥σ3 is true;

[0214] If yes, continue to update the ambient temperature at the current ambient temperature at this time, and continue to increase the current set temperature at a preset amplitude, that is, continue to execute the steps corresponding to S808 in the previous embodiment.

[0215] If no, execute step S908;

[0216] When using the corresponding set temperature to control the compressor's operation, the running time also needs to be considered. If the cooling target of the third threshold is not achieved within the fifth set time, the compressor speed can be increased by lowering the set temperature to improve cooling efficiency and avoid continuous energy loss caused by failing to achieve the third threshold cooling target when using the seventh set temperature for continuous cooling.

[0217] S908 outputs an alarm for abnormal operation in the third stage.

[0218] If the air conditioner continues to operate at the seventh set temperature for the fifth preset time and fails to achieve the cooling target of the third threshold, and continues to operate at the eighth set temperature for the sixth preset time and still fails to achieve the cooling target of the third threshold, then the air conditioner is in an abnormal operating state. It is operating at high power for a long time but cannot achieve effective cooling, and outputs a third-stage abnormal alarm to remind the user to handle the situation and avoid the losses caused by the air conditioner operating at high power continuously and inefficiently cooling.

[0219] It should be noted that the cause of the alarm in the third abnormal stage may be due to the condition of the air conditioner itself, the refrigerant, the abnormal operation of the components, or the poor indoor airtightness leading to excessive cooling loss. Users need to investigate these issues.

[0220] In yet another embodiment of the present invention, the controller is further configured to:

[0221] When a temperature-limited shutdown is detected, and the current operating temperature of the compressor is not lower than the sixth set temperature, the compressor is controlled to operate according to the third set temperature.

[0222] In the specific implementation of this embodiment, please refer to Figure 10 This is a flowchart illustrating the work performed by the controller in the seventh implementation method of this invention; the controller performs the following steps:

[0223] S1001, the air conditioner has started cooling operation;

[0224] S1002, Determine if a mode enable command has been received?

[0225] If so, return to step S1002 and continue to check whether the comfort and energy-saving mode is activated;

[0226] If not, proceed to step S1003 to activate the comfort and energy-saving mode;

[0227] S1003: Activate the comfort and energy-saving mode, acquire the initial ambient temperature T0, and control the compressor operation according to preset control parameters. At this time, the current indoor temperature is acquired by the temperature sensor as the initial ambient temperature, and the unit will simultaneously enter the fan speed adaptive adjustment control mode and the temperature adaptive adjustment control mode.

[0228] S1004, judging whether the over-temperature shutdown occurs, that is, detecting whether the over-temperature shutdown occurs from the start of the air conditioner to the current time;

[0229] If no, executing step S505, indicating that the over-temperature shutdown does not occur at this time, that is, the shutdown temperature is not reached;

[0230] If yes, executing step S1005, indicating that the over-temperature shutdown occurs, that is, the shutdown temperature is reached;

[0231] S1005, judging whether the set temperature of the current compressor operation is lower than the sixth set temperature W6;

[0232] If no, executing step S1006;

[0233] S1006, controlling the compressor operation according to the third set temperature.

[0234] In the specific implementation of the embodiment, after the over-temperature shutdown is detected at any time period of the air conditioner, the set temperature is judged, and when the set temperature is not lower than the sixth set temperature, the third control mode is run, that is, the compressor is controlled to operate according to the third set temperature.

[0235] When the over-temperature shutdown occurs after the set temperature of the air conditioner reaches the sixth set temperature, it indicates that the room temperature at this time drops to the appropriate temperature, and the running temperature at this time is also the appropriate temperature, and at this time, the compressor is controlled to operate according to the third set temperature, that is, the energy-saving operation can be maintained under the condition of maintaining the appropriate room temperature.

[0236] In another embodiment provided by the application, the controller is further used for:

[0237] After receiving the comfortable energy-saving mode exit instruction, the comfortable energy-saving mode is exited;

[0238] After receiving the shutdown instruction, the comfortable energy-saving mode is exited, and the air conditioner is turned off.

[0239] In the specific implementation of the embodiment, referring to Figure 11 is a flowchart of the controller in the eighth implementation of the embodiment of the application, and the controller executes the following steps:

[0240] S1101, the air conditioner starts to operate in the refrigeration mode;

[0241] S1102, judging whether the mode start instruction is received?

[0242] If yes, returning to step S1102 to continue to detect whether the comfortable energy-saving mode is started;

[0243] If no, executing step S1103 to start the comfortable energy-saving mode;

[0244] S1003, starting the comfortable energy-saving mode, obtaining an initial environment temperature T0, and controlling the compressor to run with preset control parameters.

[0245] S1104, after receiving the comfortable energy-saving mode exit instruction, exiting the comfortable energy-saving mode.

[0246] In the comfortable energy-saving mode, if a mode exit instruction is received, the energy-saving mode is exited, and the actual command is executed, and other buttons cannot exit the mode.

[0247] It should be noted that the step S1104 described above can also be that after receiving a shutdown instruction, the comfortable energy-saving mode is exited, and the air conditioner is turned off. That is, the user does not actively input a mode exit instruction, but directly outputs a shutdown instruction. At this time, the comfortable energy-saving mode needs to be exited first, and then the air conditioner is turned off.

[0248] It should be noted that in any of the above control modes, the user can exit the comfortable energy-saving mode through a mode exit instruction or a shutdown instruction.

[0249] The application adjusts the temperature difference to continuously adjust the operating frequency of the unit, realizes the effects of precise temperature control and energy saving and emission reduction, and creates a more comfortable use environment.

[0250] The embodiment of the application further provides a comfortable energy-saving control method of an air conditioner, which is applied to the air conditioner, and the method comprises the following steps:

[0251] After receiving a comfortable energy-saving mode start instruction, an initial environment temperature is obtained, and the compressor is controlled to run with preset control parameters.

[0252] When it is detected that the temperature-reached shutdown does not occur, a first set temperature is taken as a current set temperature to control the compressor to run, and the current environment temperature is detected in real time.

[0253] When the difference between the initial environment temperature and the current environment temperature detected in real time is not less than a first threshold value, and it is still detected that the temperature-reached shutdown does not occur, the current environment temperature at this time is taken as a first environment temperature, a second set temperature is taken as the current set temperature to control the compressor to run, and the current environment temperature is detected in real time.

[0254] When the difference between the first environment temperature and the current environment temperature detected in real time is not less than a second threshold value, and it is still detected that the temperature-reached shutdown does not occur, a third set temperature is taken as the current set temperature to control the compressor to run.

[0255] Wherein, the first set temperature is not lower than the second set temperature, and the second set temperature is not lower than the third set temperature.

[0256] Using the technical means of this invention, before the air conditioner shuts down due to reaching the set temperature, it initially uses a low set temperature to control the air conditioner compressor to operate at high speed and high frequency for rapid cooling. Subsequently, after rapidly cooling the room, once the room temperature has decreased to a certain extent, the set temperature of the air conditioner is gradually increased, causing the compressor speed and frequency to slowly decrease, resulting in slow cooling again. This continues until the room temperature decreases again to a certain extent, at which point the air conditioner compressor operates stably at the set temperature, conforming to a comfortable temperature for the human body. Furthermore, throughout this process, the air conditioner continuously monitors whether it has reached the set temperature and shuts down, ensuring that when it has not reached the set temperature and shuts down, the air conditioner adjusts the temperature difference in a gradient manner, continuously adjusting the unit's operating frequency in a gradient manner, achieving precise temperature control and energy-saving and emission-reduction effects.

[0257] It should be noted that the comfort and energy-saving control method for an air conditioner provided in this embodiment of the invention has the same steps as the controller for an air conditioner in the above embodiment. See the execution steps for details. Figure 4 The specific process steps executed by the controller during control are the same as those of the air conditioner controller in the above embodiment. See details below. Figures 5 to 11 The working principles and beneficial effects of the two correspond one-to-one, so they will not be elaborated further.

[0258] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0259] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An air conditioner characterized by comprising: The controller is configured to: receive an instruction to start a comfort energy-saving mode, and obtain an initial ambient temperature and control the compressor to operate according to preset control parameters; when no temperature-reach shutdown is detected, control the compressor to operate according to a first set temperature as a current set temperature and detect a current ambient temperature in real time; when a difference between the initial ambient temperature and the current ambient temperature detected in real time is not less than a first threshold value and no temperature-reach shutdown is still detected, take the current ambient temperature at this time as a first ambient temperature, control the compressor to operate according to a second set temperature as a current set temperature, and detect a current ambient temperature in real time; when a difference between the first ambient temperature and the current ambient temperature detected in real time is not less than a second threshold value and no temperature-reach shutdown is still detected, control the compressor to operate according to a third set temperature as a current set temperature; when the instruction to start the comfort energy-saving mode is related to heating, the first set temperature is not less than the second set temperature, and the second set temperature is not less than the third set temperature; when the instruction to start the comfort energy-saving mode is related to cooling, the first set temperature is not higher than the second set temperature, and the second set temperature is not higher than the third set temperature; the controller is further configured to: when temperature-reach shutdown is detected and a current set temperature of the compressor is lower than a sixth set temperature, control the compressor to operate according to a seventh set temperature as a current set temperature and detect a current ambient temperature in real time; the sixth set temperature is a human body suitable control temperature; when a difference between the initial ambient temperature and the current ambient temperature detected in real time is not less than a third threshold value, take the current ambient temperature at this time as a latest ambient temperature, increase the current set temperature by a preset amplitude on the basis of the seventh set temperature; when the increased set temperature is lower than the sixth set temperature and a difference between the latest ambient temperature and the current ambient temperature detected in real time is not less than a fourth threshold value, continue to update the ambient temperature according to the current ambient temperature at this time and continue to increase the current set temperature by the preset amplitude; when the increased set temperature is not less than the sixth set temperature, control the compressor to operate according to the third set temperature as a current set temperature; the seventh set temperature is not greater than the third set temperature.

2. The air conditioner of claim 1, wherein the controller is further configured to: when a difference between the initial ambient temperature and the current ambient temperature detected in real time is less than the first threshold value and a time of operating according to the first set temperature as a current set temperature exceeds a first preset time length, control the compressor to operate according to a fourth set temperature as a current set temperature and detect a current ambient temperature in real time; when the instruction to start the comfort energy-saving mode is related to cooling, the fourth set temperature is less than or equal to the first set temperature. When the time of running with the fourth set temperature as the current set temperature does not exceed the second preset time length, the difference between the initial environment temperature and the current environment temperature detected in real time is not less than the first threshold value, and the temperature-reached shutdown has not yet been detected, the current environment temperature at this time is taken as the first environment temperature, the second set temperature is taken as the current set temperature to control the compressor to run, and the current environment temperature is detected in real time.

3. The air conditioner of claim 2, wherein The controller is further configured to: When the time of running with the fourth set temperature as the current set temperature exceeds the second preset time length, and the difference between the initial environment temperature and the current environment temperature detected in real time is less than the first threshold value, output a first-stage abnormality alarm.

4. The air conditioner of claim 1, wherein The controller is further configured to: When the difference between the first environment temperature and the current environment temperature detected in real time is less than a second threshold value, and the time of running with the second set temperature as the current set temperature exceeds a third preset time length, control the compressor to run with a fifth set temperature as the current set temperature, and detect the current environment temperature in real time; when the comfort energy-saving mode opening instruction is related to refrigeration, the fifth set temperature is less than or equal to the second set temperature; When the time of running with the fifth set temperature as the current set temperature does not exceed a fourth preset time length, and the difference between the first environment temperature and the current environment temperature detected in real time is less than the second threshold value, and the temperature-reached shutdown has not yet been detected, control the compressor to run with a third set temperature as the current set temperature.

5. The air conditioner of claim 4, wherein The controller is further configured to: When the time of running with the fifth set temperature as the current set temperature exceeds the fourth preset time length, and the difference between the first environment temperature and the current environment temperature detected in real time is less than the second threshold value, output a second-stage working abnormality alarm.

6. The air conditioner of claim 5, wherein The controller is further configured to: When the difference between the initial environment temperature and the current environment temperature detected in real time is less than a third threshold value, and the time of running with a seventh set temperature as the current set temperature exceeds a fifth preset time length, control the compressor to run with an eighth set temperature as the current set temperature, and detect the current environment temperature in real time; when the comfort energy-saving mode opening instruction is related to refrigeration, the eighth set temperature is less than or equal to the seventh set temperature; When the time of running with the eighth set temperature as the current set temperature does not exceed a sixth preset time length, and the difference between the initial environment temperature and the current environment temperature detected in real time is not less than the third threshold value, take the current environment temperature at this time as the environment temperature, and increase the current set temperature by a preset amplitude on the basis of the seventh set temperature; When the time of running with the eighth set temperature as the current set temperature exceeds the sixth preset time length, and the difference between the initial environment temperature and the current environment temperature detected in real time is less than the third threshold value, output a third-stage working abnormality alarm.

7. The air conditioner of claim 1, wherein The controller is further configured to: When the temperature-reached shutdown is detected, and the current set temperature of the compressor running is not less than a sixth set temperature, control the compressor to run according to the third set temperature; the sixth set temperature is a human body suitable control temperature.

8. The air conditioner according to any one of claims 1 to 7, wherein The controller is further configured to: exit the comfort energy-saving mode after receiving a comfort energy-saving mode exit instruction; exit the comfort energy-saving mode and turn off the air conditioner after receiving a shutdown instruction.

9. A comfort energy saving control method of an air conditioner, characterized by, The method comprises: after receiving a comfort energy-saving mode start instruction, obtaining an initial ambient temperature and controlling the compressor to operate with preset control parameters; when no temperature-reached shutdown is detected, taking a first set temperature as a current set temperature to control the compressor to operate and detecting a current ambient temperature in real time; when a difference between the initial ambient temperature and the current ambient temperature detected in real time is not less than a first threshold value and no temperature-reached shutdown is still detected, taking the current ambient temperature at this time as a first ambient temperature, taking a second set temperature as a current set temperature to control the compressor to operate and detecting a current ambient temperature in real time; when a difference between the first ambient temperature and the current ambient temperature detected in real time is not less than a second threshold value and no temperature-reached shutdown is still detected, taking a third set temperature as a current set temperature to control the compressor to operate; wherein, when the comfort energy-saving mode start instruction is related to heating, the first set temperature is not lower than the second set temperature, and the second set temperature is not lower than the third set temperature; when the comfort energy-saving mode start instruction is related to cooling, the first set temperature is not higher than the second set temperature, and the second set temperature is not higher than the third set temperature; when temperature-reached shutdown is detected and a current set temperature of the compressor is lower than a sixth set temperature, taking a seventh set temperature as a current set temperature to control the compressor to operate and detecting a current ambient temperature in real time; the sixth set temperature is a human body suitable control temperature; when a difference between the initial ambient temperature and the current ambient temperature detected in real time is not less than a third threshold value, taking the current ambient temperature at this time as a latest ambient temperature, increasing the current set temperature by a preset amplitude on the basis of the seventh set temperature; when the increased set temperature is lower than the sixth set temperature and a difference between the latest ambient temperature and the current ambient temperature detected in real time is not less than a fourth threshold value, taking the current ambient temperature at this time to update the ambient temperature and increasing the current set temperature by the preset amplitude; when the increased set temperature is not lower than the sixth set temperature, taking the third set temperature as the current set temperature to control the compressor to operate; wherein, the seventh set temperature is not greater than the third set temperature.

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