CN115507512A - Air conditioner, control method thereof, and computer-readable storage medium - Google Patents

Abstract

The invention discloses a method for controlling an air conditioner. The method includes: controlling the air conditioner to operate in a first ventilation mode; instruction, the air conditioner is controlled to perform a temperature adjustment operation, and the air conditioner is controlled to switch to the second ventilation mode; wherein, the temperature adjustment operation is used to reduce the temperature difference between the air entering the air duct and the air duct in the second ventilation mode , the first ventilation mode is one of the fresh air mode and the exhaust mode, and the second ventilation mode is the other of the fresh air mode and the exhaust mode. In the fresh air mode, outdoor air enters the room through the air duct of the air conditioner, and the exhaust In the mode, the indoor air is exhausted to the outside through the air duct. The invention also discloses an air conditioner and a computer-readable storage medium. The invention aims to prevent the condensation water from being generated in the air duct of the air conditioner when the air conditioner is switched between fresh air and exhaust air, so as to ensure the normal operation of devices in the air duct.

Description

Air conditioner, control method thereof, and computer-readable storage medium

technical field

The present invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner, an air conditioner and a computer-readable storage medium.

Background technique

With the development of economy and technology, air conditioners are used more and more widely, and their performance is constantly optimized. Among them, some air conditioners will be equipped with a fresh air function and an exhaust function to ventilate the indoor environment and ensure the quality of the indoor environment.

During the use of the air conditioner, sometimes it is necessary to switch from fresh air to exhaust air, and sometimes it is necessary to switch from exhaust air to fresh air. Condensation water will affect the normal operation of the air conditioner.

Contents of the invention

The main purpose of the present invention is to provide a control method of an air conditioner, an air conditioner and a computer-readable storage medium, aiming at preventing condensation water from being generated in the air duct of the air conditioner when the air conditioner switches between fresh air and exhaust air, and ensuring that the components in the air duct are normal. run.

In order to achieve the above object, the present invention provides a control method of an air conditioner, the control method of the air conditioner includes the following steps:

controlling the air conditioner to operate in a first ventilation mode;

During the operation of the air conditioner in the first ventilation mode, if there is an instruction to turn on the second ventilation mode, the air conditioner is controlled to perform a temperature adjustment operation, and the air conditioner is controlled to switch to the second ventilation mode. gas mode operation;

Wherein, the temperature adjustment operation is used to reduce the temperature difference between the air entering the air duct and the air duct in the second ventilation mode, and the first ventilation mode is fresh air mode and exhaust mode One of, the second ventilation mode is the other of the fresh air mode and the exhaust mode, in the fresh air mode, outdoor air enters the room through the air duct of the air conditioner, and the exhaust mode The air in the lower room is discharged outside through the air duct.

Optionally, the step of controlling the air conditioner to perform a temperature adjustment operation, and controlling the air conditioner to switch to the second ventilation mode includes:

When the first ventilation mode is the fresh air mode, the second ventilation mode is the exhaust mode, and the air conditioner is in the heating operation, control the fans in the air duct to stop, so as to improve the air duct performance. temperature, the temperature adjustment operation includes the shutdown of the fan;

When the fan stops until there is no risk of condensation in the air duct, the air conditioner is controlled to switch to the exhaust mode.

Optionally, the step of controlling the air conditioner to perform a temperature adjustment operation, and controlling the air conditioner to switch to the second ventilation mode includes:

When the first ventilation mode is fresh air mode, the second ventilation mode is exhaust mode and the air conditioner is in heating operation, control the heating module in the air duct to turn on and control the air conditioner Switching to the exhaust mode operation, the temperature adjustment operation includes turning on the heating module.

Optionally, the step of controlling the air conditioner to perform a temperature adjustment operation, and controlling the air conditioner to switch to the second ventilation mode includes:

When the first ventilation mode is the exhaust mode, the second ventilation mode is the fresh air mode, and the air conditioner is in cooling operation, control the air conditioner to start the internal circulation operation, and control the air conditioner to switch Up to the operation of the fresh air mode, when the internal circulation operation is turned on, the indoor air enters the air duct and mixes with the outdoor air entering the air duct, and the temperature adjustment operation includes the internal circulation operation.

Optionally, after the step of controlling the air conditioner to perform a temperature adjustment operation, it further includes:

During the execution of the temperature adjustment operation, a state parameter is acquired; the state parameter is a parameter characterizing the condensation risk of the air duct;

When it is determined according to the state parameter that there is no risk of condensation in the air duct, the air conditioner is controlled to stop performing the temperature adjustment operation.

Optionally, the step of obtaining state parameters includes:

Detecting the first temperature in the air duct and the execution time of the temperature adjustment operation, the state parameters include the first temperature and the execution time;

After the step of obtaining state parameters, it also includes:

When the first temperature is greater than or equal to the target dew point temperature, or, when the execution duration is greater than or equal to the target duration, it is determined that there is no risk of condensation in the air duct;

Wherein, the target dew point temperature is the dew point temperature of the air entering the air duct in the second ventilation mode.

Optionally, during the operation of the air conditioner in the first ventilation mode, if there is an instruction to turn on the second ventilation mode, the air conditioner is controlled to perform a temperature adjustment operation, and the air conditioner is controlled to switch The steps to operate in the second ventilation mode include:

During the operation of the air conditioner in the first ventilation mode, if there is an instruction to start the second ventilation mode, the indoor temperature, the outdoor temperature and the target humidity are obtained, and the target humidity is the second ventilation mode The humidity of the air that needs to be introduced into the air duct during operation;

determining whether there is a risk of condensation in the air duct when the air conditioner is switched to the second ventilation mode according to the indoor temperature, the outdoor temperature, and the target humidity;

If it is determined that there is a risk of condensation in the air duct when the air conditioner is switched to the second ventilation mode, the control of the air conditioner is performed to perform a temperature adjustment operation, and the air conditioner is controlled to switch to the second ventilation mode. Steps for running in the second ventilation mode.

Optionally, after the step of determining whether there is a risk of condensation in the air duct when the air conditioner is switched to the second ventilation mode according to the indoor temperature, outdoor temperature and the target humidity, further comprising: :

If it is determined that there is no risk of condensation in the air duct when the air conditioner is switched to the second ventilation mode, the air conditioner is controlled to switch to the second ventilation mode.

Optionally, the step of determining whether there is a risk of condensation in the air duct when the air conditioner switches to the second ventilation mode according to the indoor temperature, outdoor temperature and the target humidity includes:

When the first target temperature is lower than the first set temperature, the second target temperature is greater than the second set temperature, and the target humidity is greater than the set humidity, it is determined that the air conditioner is switched to the second ventilation mode to operate. There is a risk of condensation in the air duct;

When the first target temperature is greater than or equal to the first set temperature, or, when the second target temperature is less than or equal to the second set temperature, or, when the target humidity is less than or equal to When setting the humidity, it is determined that there is no risk of condensation in the air duct when the air conditioner is switched to the second ventilation mode;

Wherein, the first target temperature is the temperature of the air entering the air duct in the first ventilation mode among the indoor temperature and the outdoor temperature, and the second target temperature is the temperature between the indoor temperature and the outdoor temperature. Among the outdoor temperatures, the temperature of the air entering the air passage in the second ventilation mode, the first set temperature is lower than the second set temperature.

In addition, in order to achieve the above object, the present application also proposes an air conditioner, which includes: a memory, a processor, and an air conditioner control program stored in the memory and operable on the processor. When the control program of the air conditioner is executed by the processor, the steps of the control method for the air conditioner as described in any one of the above items are implemented.

In addition, in order to achieve the above object, the present application also proposes a computer-readable storage medium, on which a control program of an air conditioner is stored, and when the control program of the air conditioner is executed by a processor, the above-mentioned A step of the air conditioner control method described in one item.

A control method for an air conditioner proposed by the present invention is based on an air conditioner that uses the same air duct to realize the fresh air mode and the ventilation mode. During the process, when receiving an instruction to open another ventilation mode in the fresh air mode and the exhaust mode, instead of directly switching to the ventilation mode to be turned on, it also performs a temperature adjustment operation, through the temperature adjustment operation Reduce the temperature difference between the air duct and the air entering the air duct in the ventilation mode that needs to be turned on, so as to effectively prevent the excessive difference between indoor and outdoor temperature and humidity when the fresh air and exhaust air are switched, resulting in condensation water in the air duct, avoiding If the components in the air duct are damp, ensure the normal operation of the components in the air duct.

Description of drawings

Fig. 1 is the structural representation of an embodiment of air conditioner of the present invention;

Fig. 2 is a schematic diagram of the hardware structure involved in the operation of an embodiment of the control device of the air conditioner of the present invention;

Fig. 3 is a schematic flow chart of an embodiment of the control method of the air conditioner of the present invention;

Fig. 4 is a schematic flow chart of another embodiment of the control method of the air conditioner of the present invention;

Fig. 5 is a schematic flowchart of another embodiment of the control method of the air conditioner of the present invention;

Fig. 6 is a schematic flowchart of another embodiment of the control method of the air conditioner of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The main solution of the embodiment of the present invention is to control the air conditioner to operate in the first ventilation mode; during the operation of the air conditioner in the first ventilation mode, if there is an instruction to start the second ventilation mode, Then control the air conditioner to perform a temperature adjustment operation, and control the air conditioner to switch to the second ventilation mode to operate; wherein, the temperature adjustment operation is used to reduce the wind entering the second ventilation mode The temperature difference between the air in the duct and the air duct, the first ventilation mode is one of the fresh air mode and the exhaust mode, and the second ventilation mode is one of the fresh air mode and the exhaust mode In another example, in the fresh air mode, the outdoor air enters the room through the air duct, and in the exhaust mode, the indoor air is discharged outside through the air duct.

Because in the prior art, during the use of the air conditioner, sometimes it is necessary to switch from fresh air to exhaust air, and sometimes it is necessary to switch from exhaust air to fresh air. Switching will easily cause the air conditioner to produce condensation, which will affect the normal operation of the air conditioner.

The present invention provides the above-mentioned solution, aiming at preventing condensation water from being generated in the air duct of the air conditioner when the air conditioner switches between fresh air and exhaust air, and ensuring normal operation of devices in the air duct.

An embodiment of the present invention provides an air conditioner. The air conditioner may specifically be a cabinet type air conditioner, a wall-mounted type air conditioner, a window type air conditioner, a ceiling type air conditioner, or the like.

In the embodiment of the present invention, referring to FIG. 1 , the air conditioner includes a casing 1 and a fan 2 . The housing 1 is provided with an outdoor air outlet 02, an indoor air inlet 03, and an indoor air outlet 04. The housing 1 is provided with an air duct 01, and the outdoor air outlet 02, the indoor air inlet 03, and the indoor air outlet The tuyeres 04 are all in communication with the air duct 01 , and the fan 2 is arranged in the air duct 01 .

Wherein, the air conditioner may also include a heat exchange module for indoor air temperature adjustment, and the heat exchange module may be arranged in the air duct 01 or in another space isolated from the air duct 01 inside the housing 1 .

Specifically, the outdoor tuyere 02, the indoor air inlet 03 and/or the outdoor tuyere 02 may be provided with a valve 5 according to actual needs, so as to control the opening or closing of the tuyere. A guide structure can also be provided in the air duct 01 to control the flow direction of the airflow in the air duct 01 when the fan 2 is turned on, so that the air conditioner can have more than one ventilation mode. Fan 2 can be fixed to one direction, and can also have more than one direction (such as forward rotation and reverse rotation)

Based on this, the air conditioner has at least two ventilation modes. In this embodiment, at least two ventilation modes include a fresh air mode and an exhaust mode. In the fresh air mode, the fan 2 drives outdoor fresh air from the outdoor air outlet. 02 enters the air duct 01 and is sent into the room from the indoor air outlet 04. The tuyere 02 is discharged outdoors. Wherein, when there is no guide structure in the air duct 01, the steering of the fan 2 in the fresh air mode and the steering of the fan 2 in the exhaust mode can be different, and the air conditioner can be operated in different ventilation modes through the switching of the fan 2 steering. switch. When a guide structure is provided in the air duct 01, the turning direction of the fan 2 in the fresh air mode and the turning direction of the fan 2 in the exhaust mode can be the same, and the air conditioner can be realized through the guide structure or the valve 5 set in combination with the guide structure and the tuyere. Switch between different ventilation modes. It should be noted that, in addition to the above two ventilation modes, the air conditioner can also be provided with other types of ventilation modes according to actual needs. For example, if the above exhaust mode is defined as the first exhaust mode, the air conditioner can also There is a second exhaust mode. In the second exhaust mode, the fan 2 drives indoor air from the indoor air outlet 04 into the air duct 01 and is discharged outdoors from the outdoor air outlet 02, and so on.

In this embodiment, the air conditioner is set according to the above method, and the air conditioner can have at least two ventilation modes through one air duct 01 and one fan 2. Based on this, the air conditioner can be connected to the outdoor through an air duct. At the same time, it realizes the function of introducing fresh air and exhausting air of the air conditioner.

Further, in this embodiment, referring to FIG. 1 , the air conditioner further includes a baffle, which is arranged in the housing 1 and divides the air duct 01 into a first air chamber 011 and a second air chamber 011 . The air chamber 012, the partition is provided with a first air port 05 and a second air port 06, and the first air port 05 and the second air port 06 are connected to the first air chamber 011 and the second air chamber 012 , the fan 2 is arranged in the second air chamber 012, the outdoor air outlet 02 is arranged in the first air chamber 011, the indoor air inlet 03 and the indoor air outlet 04 are both arranged in the second Wind Cavity 012.

Specifically, in the exhaust mode, the first air outlet 05 is closed, the second air outlet 06 is opened, and the fan 2 is controlled to be turned on. The air chamber 012, the second air outlet 06, the first air chamber 011 and the outdoor air outlet 02 are discharged to the outside (the air flow direction indicated by the dotted line in Fig. 1 ).

In the fresh air mode, the first air outlet 05 is opened, the second air outlet 06 is closed, and the fan 2 is controlled to be turned on. When the fan 2 is turned on, the outdoor air passes through the outdoor air outlet 02 and the first air chamber sequentially. 011. The first air outlet 05, the second air chamber 012 and the indoor air inlet 03 are sent into the room (the airflow direction indicated by the straight line in FIG. 1 ).

Wherein, the first tuyere 05 and/or the second tuyere 06 may be provided with a valve 5 for controlling the opening or closing of the first tuyere 05 and/or the second tuyere 06 . The baffles here can cooperate with the casing 1 and/or other structural components in the casing 1 to form the above-mentioned guiding mechanism, so as to control the flow direction of the airflow in the air duct 01 .

Here, the air conditioner can have various ventilation modes such as an exhaust mode and a fresh air mode through the cooperation of the housing 1 and the plurality of air ports provided by the partition inside the housing 1 .

Further, the first air outlet 05 is arranged on the air inlet side of the fan 2, and the second air outlet 06 is arranged on the air outlet side of the fan 2, and the turning direction of the fan 2 in the fresh air mode is defined as The first rotation defines the rotation of the fan 2 in the exhaust mode as the second rotation, and the first rotation is the same as the second rotation. Based on this, the fan 2 can realize the switching of the airflow direction in the air duct 01 without reversing. It should be noted that the indoor air inlet 03 is also arranged on the air inlet side of the fan 2 .

Specifically, the first air cavity 011 is divided into two connected areas on the air outlet side of the fan 2, which are respectively defined as the first area and the second area. The wind resistance of the first area is greater than that of the second area. Based on this, the second area The second air outlet 06 is connected to the second area and the first air chamber 011, and the indoor air outlet 04 is located in the first area. Based on this, the airflow in the air duct 01 can be smoothly discharged outside in the exhaust mode, improving the exhaust efficiency.

Further, an air conditioning module 3 may be provided in the above-mentioned air duct 01 . Specifically, when the air duct 01 includes the above-mentioned first air chamber 011 and the second air chamber 012 , the air conditioning module 3 may be arranged in the second air chamber 012 . The air conditioning module 3 can be a heat exchange module, a purification module (such as a formaldehyde removal module, an activated carbon module, a plasma sterilization module), a humidity regulation module (such as a dehumidification module and/or a humidification module), an oxygenation module (such as positive and negative ion module), fragrance module, heating module (such as electric auxiliary heating module, etc.) one or more than one. The air conditioning module 3 can be fixedly installed in the air duct 01 , and can also be detachably installed in the air duct 01 .

In this embodiment, the air conditioning module 3 can also be detached and installed in the air duct 01 . Specifically, an installation base may be provided in the air duct 01 , and the installation base may include one or more than one installation parts, and each installation part may be detachably connected to the air conditioning module 3 . For example, the installation part is an installation slot, and the air-conditioning module 3 and the installation slot can be detachably connected through plug-in fit. Based on this, the user can install the air-conditioning module 3 to be used in the air duct 01 based on actual usage requirements, so as to adjust the air flowing through the air duct 01 . Wherein, the position corresponding to the installation base in the air duct 01 can be provided with an identification module 4, and the air conditioning module 3 can be provided with an identification part carrying identification information (such as RFID card, bar code, two-dimensional code, etc.), different air The identification information carried by the identification part corresponding to the adjustment module 3 is different. Based on this, by identifying the identification information in the detection parameters of the identification module 4, it can be determined based on the identification result whether the air conditioning module 3 is installed in the air duct 01. Information such as the type of the installed air-conditioning module 3 and the location of the installed air-conditioning module 3 . Further, in order to ensure the accuracy of the identification results, each installation part can be provided with a corresponding identification module 4, and the detection range of each identification module 4 covers its corresponding installation part. Based on this, only the identification of the air conditioning module 3 Parts within the detection range of the identification module 4 can be effectively detected.

Specifically, the air-conditioning module 3 here can be set in the above-mentioned first area. Based on this, in the fresh air mode, the introduced fresh air can be regulated by the air-conditioning module 3 in the first area and sent into the room from the indoor air outlet 04; In the exhaust mode, the indoor air entering the air duct 01 from the indoor air inlet 03 has a large wind resistance due to the air conditioning module 3 in the first area, so the indoor air enters the first air chamber 011 from the second area with a smaller wind resistance Finally, it is discharged outside from the outdoor air outlet 02.

Further, a detection module 6 may also be provided in the air duct 01 for measuring the temperature of the air duct or the temperature of the air flowing through it. In this embodiment, the detection module 6 is specifically arranged on the side of the partition board that is located on the air outlet side of the fan 2 . In other embodiments, the detection module 6 can also be arranged at other positions in the air duct 01 according to actual needs.

Further, a heating module 7 may also be provided in the air duct 01 for heating the air duct. In this embodiment, the heating module 7 is an electric auxiliary heating module. In other embodiments, the heating module 7 can also be a thermal storage module.

Further, in the embodiment of the present invention, referring to FIG. 2 , the air conditioner also includes a control device, and the above-mentioned fan 2, identification module 4, valve 5, detection module 6, heating module 7, etc. are all connected to the control device here. The control device can be used to control the operation of the fan 2, the valve 5, the heating module 7, the identification module 4 and other components. In addition, the control device can also be used to obtain temperature data detected by the detection module 6 . The control device includes: a processor 1001 (such as a CPU), a memory 1002 and the like. The processor 1001 is connected to the memory 1002 . The memory 1002 can be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 1002 may also be a storage device independent of the foregoing processor 1001 .

Those skilled in the art can understand that the structure of the device shown in FIG. 2 does not constitute a limitation to the device, and may include more or less components than shown in the figure, or combine some components, or arrange different components.

As shown in FIG. 2 , the memory 1002 as a computer-readable storage medium may include a control program of the air conditioner. In the device shown in FIG. 2 , the processor 1001 can be used to call the control program of the air conditioner stored in the memory 1002 and execute the related steps of the control method of the air conditioner in the following embodiments.

An embodiment of the present invention also provides a method for controlling an air conditioner, which is applied to control the above air conditioner.

Referring to FIG. 3 , an embodiment of the control method of the air conditioner of the present application is proposed. In this embodiment, the air conditioner includes a casing, the casing is provided with an air duct, and the control method of the air conditioner includes:

Step S10, controlling the air conditioner to operate in the first ventilation mode;

The air conditioner has at least two ventilation modes, and the at least two ventilation modes include a fresh air mode and an exhaust mode. At least two ventilation modes use the same air duct for ventilation. In the fresh air mode, the outdoor air enters the room through the air duct, and in the exhaust mode, the indoor air is discharged outside through the air duct.

Specifically, in the fresh air mode, the fan drives outdoor fresh air to enter the air duct from the outdoor air outlet and send it into the room from the indoor air outlet. In the fresh air mode, the indoor air inlet can be opened or closed. In the exhaust mode, the fan drives the indoor air to enter the air duct from the indoor air inlet and exhaust it to the outside through the outdoor air outlet. In the exhaust mode, the indoor air outlet can be opened or closed. Wherein, closing the indoor air outlet helps the air in the air duct to be discharged from the outdoor air outlet more smoothly, improving the exhaust efficiency.

Specifically, in the fresh air mode, the air conditioner can control the fan in the fresh air duct to turn on. When the fan is turned on, if a guide structure is provided, adjust the operating state of the guide structure so that the airflow direction is blown into the room from the outside; the fan is turned on Under normal conditions, when there is no guide structure, the airflow direction can be sent from the outside to the room through the fan steering control, for example, the fan can be rotated forward to introduce fresh air (at this time, the fan can be turned over to make the indoor air be discharged outside). When the air conditioner is in the exhaust mode, it can control the fan in the fresh air duct to turn on. When the fan is turned on, if there is a guide structure, adjust the operating state of the guide structure so that the airflow direction is blown from the indoor environment to the outdoor environment; the fan is turned on In this state, when there is no guide structure, the airflow direction can be sent from the outside to the room through the fan steering control, for example, the indoor air can be discharged outside through the fan reversal.

The air conditioner may determine the current ventilation mode to be turned on by the air conditioner as the first ventilation mode based on the ventilation command input by the user. For example, when the user needs outdoor fresh air to improve the freshness of indoor air, he can input the command to enable the fresh air function. At this time, the fresh air mode can be used as the first ventilation mode to control the air conditioner to run in the fresh air mode; When the air is exhausted outside, an instruction to activate the exhaust function can be input. At this time, the exhaust mode can be used as the first ventilation mode, and the air conditioner can be controlled to operate in the exhaust mode.

When the air conditioner is in the first ventilation mode, the air conditioner can operate in cooling or heating, and can also be in a state of stopping heat exchange.

Step S20, during the operation of the air conditioner in the first ventilation mode, if there is an instruction to start the second ventilation mode, control the air conditioner to perform a temperature adjustment operation, and control the air conditioner to switch to the The second ventilation mode operates; wherein, the temperature adjustment operation is used to reduce the temperature difference between the air entering the air passage and the air passage in the second ventilation mode.

The first air exchange mode is one of the fresh air mode and the exhaust mode, the second air exchange mode is the other of the fresh air mode and the exhaust mode, and in the fresh air mode, outdoor air passes through the The air duct enters the room, and in the exhaust mode, the indoor air is discharged outdoors through the air duct.

When the air conditioner is in the fresh air mode, if an instruction to turn on the exhaust mode is received, the air conditioner can be controlled to perform a temperature adjustment operation, and the air conditioner can be controlled to switch to the exhaust mode.

When the air conditioner is in the exhaust mode, if a command to turn on the fresh air mode is received, the air conditioner can be controlled to perform a temperature adjustment operation, and the air conditioner can be controlled to switch to the fresh air mode.

Here, the command to start the second ventilation mode can be input by the user through the controller of the air conditioner based on the user's actual needs, or can be automatically generated by the air conditioner when it detects that the indoor and outdoor air conditions reach the set conditions.

The switch between the fresh air mode and the exhaust mode can be switched through the direction of the fan in the air duct, and can also be realized through the flow direction switching structure in the air duct. The airflow before and after switching between the fresh air mode and the exhaust mode flows through the same air duct.

The adjustment object of the temperature adjustment operation can be the air in the air duct or the air before entering the air duct. It is only necessary to ensure the temperature difference between the temperature of the air entering the air duct after switching to the second ventilation mode and the temperature of the air duct itself Just reduce it. Specifically, in this embodiment, the temperature of the air introduced into the air duct by the second ventilation mode is higher than the temperature of the air introduced into the air duct by the first ventilation mode, for example, an instruction to start the exhaust mode is received in the fresh air mode of the air conditioner , the temperature adjustment operation can be to reduce the temperature of the indoor air before entering the air duct, or to increase the temperature of the air in the air duct, so as to avoid condensation in the air duct when the lower temperature air duct is mixed with high-temperature and high-humidity indoor air water; as another example, when the air conditioner receives an instruction to open the fresh air mode in the exhaust mode of the air conditioner, and the indoor temperature is lower than the outdoor temperature, the temperature adjustment operation can be used to reduce the temperature of the outdoor air before entering the air duct, or to increase the temperature in the air duct. The temperature of the air should be adjusted to avoid condensation water in the air duct when the outdoor air with high temperature and humidity is introduced into the air duct with low temperature.

During the execution of the temperature adjustment operation, the fan in the air duct can be turned on or off.

Specifically, the air conditioner can be controlled first to perform the temperature adjustment operation, and then the air conditioner can be switched to the second ventilation mode when it detects that there is no risk of condensation in the air duct; in addition, the temperature adjustment operation and the second ventilation mode can also be executed simultaneously.

Wherein, the temperature adjustment operation can be stopped when there is no risk of condensation in the air duct, and can also be continuously performed during the operation of the second ventilation mode.

An air conditioner control method proposed by an embodiment of the present invention is based on an air conditioner that uses the same air duct to realize the fresh air mode and the ventilation mode. During the running process, when receiving an instruction to open another ventilation mode in the fresh air mode and exhaust mode, it does not directly switch to the required ventilation mode to run, but also performs a temperature adjustment operation. The temperature operation reduces the temperature difference between the air duct and the air entering the air duct in the ventilation mode that needs to be turned on, thereby effectively preventing the excessive difference between indoor and outdoor temperature and humidity when switching between fresh air and exhaust air, resulting in condensation in the air duct and avoiding If the components in the air duct are damp, ensure the normal operation of the components in the air duct.

Further, in this embodiment, when there is an opening command of the second ventilation mode, the target air volume corresponding to the opening command can be determined first, and if the target air volume is less than the set air volume, the air conditioner can be controlled to perform a temperature adjustment operation , control the air conditioner to switch to the second ventilation mode; if the target air volume is greater than or equal to the set air volume, the temperature adjustment operation may not be performed, and the air conditioner is directly controlled to switch to the second ventilation mode . Due to the large temperature difference between indoor and outdoor, and when the air volume introduced after the ventilation switch is small, condensation water is more likely to appear in the air duct; when the air volume is large, the air duct can be quickly adjusted to be close to the temperature of the incoming air. Therefore, when the target air volume of the second ventilation mode is determined to be large, the temperature adjustment operation is increased during the ventilation mode, otherwise the ventilation mode is switched directly, so as to ensure that there is no condensation in the air duct and the ventilation mode can be guaranteed switching efficiency.

Further, in this embodiment, referring to FIG. 1 , based on the settings of the first air chamber, the second air chamber, the first air outlet, and the second air outlet set by the above-mentioned air conditioner, it is necessary to control the air conditioner to use fresh air in the above steps. The process of mode operation is as follows: open the first air outlet, close the second air outlet, control the fan to turn on, and when the fan is turned on, the outdoor air passes through the outdoor air outlet, the first air chamber, the The first air outlet, the second air cavity and the indoor air inlet are then sent into the room (the airflow direction indicated by the solid line in Figure 1). In the above steps, the process of controlling the air conditioner to operate in the exhaust mode is as follows: close the first air outlet, open the second air outlet, control the fan to turn on, and when the fan is turned on, the indoor air passes through the The indoor air inlet, the second air chamber, the second air outlet, the first air chamber and the outdoor air outlet are then discharged outdoors (the airflow direction indicated by the dotted line in FIG. 1 ). When the target ventilation mode includes the fresh air mode and the exhaust mode, the first air port and the second air port are alternately controlled in the above two ways, so as to realize the switching of the air conditioner between the fresh air mode and the exhaust mode. Specifically, the opening or closing of the first tuyere and the second tuyere here can be realized through a valve provided on the tuyere. Here, the rotation direction of the fan in the fresh air mode and the rotation direction in the exhaust mode can be set to be the same or different according to the positions of the first air port and the second air port.

In other embodiments, in the fresh air mode, the fan can be controlled to rotate forward, so that the outdoor air can enter the air duct and be sent into the room from the indoor air outlet; The outdoor air outlet discharges to the outside.

Further, another embodiment of the air conditioner control method of the present application is proposed based on the above embodiments. In this embodiment, referring to FIG. 4, step S20 includes:

Step S21, during the operation of the air conditioner in the first ventilation mode, if there is an instruction to start the second ventilation mode, when the first ventilation mode is fresh air mode and the second ventilation mode is When the air conditioner is in exhaust mode and the air conditioner is in heating operation, the fan in the air duct is controlled to stop, so as to increase the temperature of the air duct, and the temperature adjustment operation includes stopping the fan;

Step S22, when the fan stops until there is no risk of condensation in the air duct, control the air conditioner to switch to the exhaust mode.

During the shutdown process of the fan, the air port connecting the air duct to the room can be opened or closed, and the air port connecting the air duct to the outdoor can be opened or closed. Specifically, in this embodiment, when the opening command of the second ventilation mode is received in the first ventilation mode, the air outlet connecting the air duct to the room is opened, the air outlet connecting the air duct to the outdoor is closed, and the delay time of the fan is controlled. Turn it off after the set period of time is turned on, so that the remaining cold air in the air duct can be discharged from the room, and the temperature of the air duct can be accelerated. In addition, in other embodiments, when receiving the start instruction of the second ventilation mode in the first ventilation mode, the fan in the air duct can be directly turned off.

The stop time of the fan can be a preset fixed time, or a time determined based on the current outdoor temperature or the temperature difference between indoor and outdoor air temperatures. Wherein, the lower the outdoor temperature or the larger the temperature difference between indoor and outdoor air, the longer the shutdown time of the fan can be.

Specifically, the air conditioner is in heating operation, indicating that the temperature of the indoor air is higher than that of the outdoor air under the adjustment of the air conditioner. Based on this, when the air conditioner needs to switch from the fresh air mode to the exhaust mode, the fan in the air duct stops. It can stop fresh air with low outdoor temperature from being sent into the air duct, and the temperature in the air duct can rise during the shutdown of the fan. After the temperature rises, the temperature difference between the temperature in the air duct and the temperature of the indoor air required for the exhaust mode decreases, Thereby reducing the risk of condensation in the air duct.

During the shutdown process of the fan, the condensation-related parameters (such as temperature and/or humidity, etc.) When the setting conditions corresponding to no risk of condensation are reached, it can switch to the exhaust mode to operate, and the indoor air will be discharged outside through the air duct, so as to ensure that no condensation will be generated in the air duct when the fresh air mode is switched to the exhaust mode. Ensure that the devices in the air duct will not be affected by moisture to ensure the normal operation of the devices.

Wherein, in the process of switching to the exhaust mode, the fan is turned on again. After the fan is turned on, it can run in the opposite direction to that of the fan in the fresh air mode, so as to switch the flow direction of the airflow in the air duct and drive the indoor air out of the air duct to the outside. In addition, when there is a guide structure for switching the airflow direction in the air duct, the fan can run in the same direction as the fan in the fresh air mode after it is turned on, and the airflow direction in the air duct can be switched by changing the position of the guide structure to drive the indoor air. Exhausted from the air duct to the outside.

After switching to exhaust mode, the fan can run at a preset fixed speed. Alternatively, the fan can also run for a preset time at a speed less than the set speed, and then run at a speed greater than or equal to the set speed, so as to ensure that a large amount of hot air will not enter the air duct when the exhaust is started, and a small amount of hot air will further Heating the air duct to ensure that the temperature of the air duct is close to the indoor temperature and then exhausting the air with a large air volume is conducive to further improving the anti-condensation effect of the air duct.

Further, based on any of the above embodiments, another embodiment of the control method for the air conditioner of the present application is proposed. In this embodiment, referring to FIG. 5, step S20 includes:

Step S23, during the operation of the air conditioner in the first ventilation mode, if there is an instruction to start the second ventilation mode, when the first ventilation mode is fresh air mode and the second ventilation mode is When the air conditioner is in exhaust mode and the air conditioner is in heating operation, control the heating module in the air duct to turn on, and control the air conditioner to switch to the exhaust mode operation, and the temperature adjustment operation includes turning on the heating module .

The air conditioner is in heating operation, indicating that the temperature of the indoor air is higher than that of the outdoor air under the regulation of the air conditioner. Based on this, when the air conditioner needs to switch from the fresh air mode to the exhaust mode, except for In addition, it can also control the opening of the heating module in the air duct.

Specifically, the heating module can be turned on before the air conditioner switches to the exhaust mode, or it can be turned on synchronously during the switch to the exhaust mode. In this embodiment, in the process of switching to the exhaust mode, the heating module is turned on synchronously, which is beneficial to increase the speed of the air conditioner switching to the exhaust operation, so as to prevent condensation in the air duct and discharge indoor dirty air to the outside as soon as possible to ensure air quality.

In other embodiments, the heating module can also be turned on first, and then the air conditioner is controlled to switch to the exhaust mode when it is detected that there is no risk of condensation in the air duct. During this process, the fan in the air duct can be turned on or off. In addition, during this process, the tuyere connected to the indoor in the air duct can be closed, and the tuyere connected to the outdoor in the air duct can be opened, so that the heated moisture evaporates and is discharged outside through the tuyere connected to the outdoor.

After the heating module is turned on, it can operate at a fixed heating power, or at a heating power determined by the indoor temperature, the outdoor temperature, or the temperature difference between the indoor and outdoor temperatures.

In this embodiment, when the exhaust mode of the air conditioner needs to be switched from fresh air to exhaust during the heating process of the air conditioner, the heating module in the air duct is used to heat the air duct to increase the temperature of the air duct to reduce the indoor hot air and the air duct. Therefore, when the indoor high-temperature air enters the air duct when switching to the exhaust mode, condensation water will not be generated on the inner wall of the air duct due to the alternation of cold and heat, so as to ensure the dryness of the air duct and the normal operation of the devices in the air duct.

Further, based on any of the above embodiments, another embodiment of the control method of the air conditioner of the present application is proposed. In this embodiment, referring to FIG. 6, step S20 includes:

Step S24, during the operation of the air conditioner in the first ventilation mode, if there is an instruction to start the second ventilation mode, when the first ventilation mode is the exhaust mode and the second ventilation mode When the air conditioner is in the fresh air mode and the air conditioner is in cooling operation, the air conditioner is controlled to start the internal circulation operation, and the air conditioner is controlled to switch to the fresh air mode operation. When the internal circulation operation is turned on, the indoor air enters the The air duct is mixed with the outdoor air entering the air duct, and the temperature adjustment operation includes the internal circulation operation.

The air conditioner is in cooling operation, which means that the temperature of the indoor air is lower than that of the outdoor air under the adjustment of the air conditioner. Based on this, when the air conditioner needs to switch from the exhaust mode to the fresh air mode, in addition to switching to the fresh air mode, It can also control the air conditioner to introduce the indoor air into the air duct to mix with the high-temperature outdoor fresh air in the air duct, and reduce the temperature of the outdoor fresh air through the indoor low-temperature air, thereby avoiding the excessive temperature of the air entering the air duct in the fresh air mode and effectively reducing the temperature of the air duct itself. The temperature difference between the temperature and the air temperature introduced by the fresh air mode, so as to effectively prevent condensation in the air duct when switching from the exhaust mode to the fresh air mode in the cooling mode.

Here, the air conditioner is controlled to switch to the fresh air mode while the internal circulation operation is turned on. During this process, the fan can run at a preset fixed speed. Alternatively, the fan can also run for a preset time at a speed greater than the set speed, and then run at a speed less than or equal to the set speed to ensure that a large amount of cold air will not enter the air duct when the fresh air is introduced, and the indoor cold air can be reduced. The temperature of the air entering the air duct will not cause the temperature difference between the outdoor air and the indoor air to be too large to cause condensation. On this basis, ensure that the temperature of the air duct is close to the outdoor temperature before introducing fresh air with a large air volume, which is conducive to further improving the efficiency of the air duct. Anti-condensation effect.

It should be noted that, in this embodiment, the air inlet through which the internal circulation operation introduces indoor air is different from the air supply outlet through which outdoor air is sent into the room in the fresh air mode.

It should be noted that step S20 may include the above step S24, and may include step S23 at the same time, or step S20 may include the above step S24, and may include step S21 and step S22 at the same time. step.

Further, based on any of the above embodiments, another embodiment of the control method of the air conditioner of the present application is proposed. In this embodiment, during the execution of the temperature adjustment operation, a state parameter is obtained; the state parameter is a parameter characterizing the condensation risk of the air duct; when the air duct is determined according to the state parameter When there is no risk of condensation, the air conditioner is controlled to stop performing the temperature adjustment operation.

The state parameters specifically include indoor temperature, indoor humidity, outdoor temperature, outdoor humidity, and/or operating characteristic parameters of the temperature adjustment operation (such as the execution duration and/or execution times of the operation, etc.) and the like.

Specifically, the target conditions that the state parameters need to achieve when there is no risk of condensation in the air duct during switching to the second ventilation mode can be preset. Based on this, when the current state parameters match the target conditions, it can be considered that there is no risk of condensation in the air duct under the temperature adjustment operation; when the current state parameters do not match the target conditions, it can be considered that there is a risk of condensation in the air duct under the temperature adjustment operation.

Specifically, in this embodiment, the acquisition process of state parameters is as follows: detect the first temperature in the air duct and the execution time of the temperature adjustment operation, the state parameters include the first temperature and the execution time duration. Specifically, the first temperature can be obtained through real-time detection by a detection module provided in the air duct. Start timing when the temperature adjustment operation starts to execute, and use the current timing duration as the execution duration here. Based on this, after obtaining the state parameters, when the first temperature is greater than or equal to the target dew point temperature, or, when the execution duration is greater than or equal to the target duration, it is determined that there is no risk of condensation in the air duct; wherein, The target dew point temperature is the dew point temperature of the air entering the air duct in the second ventilation mode. Specifically, when the second ventilation mode is fresh air mode, the target dew point temperature here can be calculated according to the outdoor ambient temperature and outdoor ambient humidity; when the second ventilation mode is exhaust mode, the target dew point temperature can be calculated according to the indoor ambient temperature and indoor humidity. The ambient humidity is used to calculate the target dew point temperature here. The target duration is specifically the minimum duration of the temperature regulation operation when there is no risk of condensation in the air duct during the execution of the preset temperature regulation operation. It can be a preset fixed parameter, or it can be based on the current actual temperature difference between indoor and outdoor and/or Or certain parameters such as humidity difference. Under the effect of temperature adjustment, the temperature of the air duct reaches the target dew point temperature, or the execution time exceeds the target duration, which can indicate that the temperature in the air duct itself is high enough to ensure the temperature and humidity of the air introduced by the air conditioner even when it switches to the second ventilation mode Higher, and no condensation will be generated in the air duct.

In the temperature adjustment operation in the above embodiment, when the fan in the air duct is stopped, the state parameters executed during the stop of the fan can be detected, and when it is determined based on the state parameters that there is no risk of condensation in the air duct, the air conditioner can be controlled to switch to the first Two ventilation mode operation.

In the temperature adjustment operation in the above embodiment, when the heating module in the air duct is turned on, if the heating module is turned on during the process of switching to the second ventilation mode, the state parameters can be detected in the second ventilation mode, and based on the state parameters When it is determined that there is no risk of condensation in the air duct, the heating module can be controlled to turn off; or, if the heating module is turned on before switching to the second ventilation mode, the state parameters can be detected before the second ventilation mode, and based on the state parameters When it is determined that there is no risk of condensation in the air duct, the heating module can be controlled to be turned off, and the air conditioner can be switched to the second ventilation mode after the heating module is turned off.

When the temperature adjustment operation in the above embodiment includes turning on the internal circulation operation, if the internal circulation operation is turned on during the process of switching to the second ventilation mode, the state parameters can be detected in the second ventilation mode, and based on the state parameters When it is determined that there is no risk of condensation in the air duct, the internal circulation operation can be controlled to be closed; or, the internal circulation operation can be turned on before switching to the second ventilation mode, and the state parameters can be detected before the second ventilation mode. When the state parameters determine that there is no risk of condensation in the air duct, the internal circulation operation can be controlled to be closed, and the air conditioner can be switched to the second ventilation mode after the internal circulation operation is closed.

It should be noted that, in other embodiments, when it is determined according to the state parameters that there is no risk of condensation in the air duct, the temperature adjustment operation may also be maintained, and the air conditioner may be controlled to switch to the second ventilation mode.

In this embodiment, through the detection of state parameters, when the risk of condensation in the air duct under the adjustment of the temperature adjustment operation is determined based on the state parameters, the temperature adjustment operation is stopped, which is beneficial to prevent condensation in the air duct and avoid unnecessary The energy consumption generated by the thermostat operation.

Furthermore, based on any of the above embodiments, yet another embodiment of the control method of the air conditioner of the present application is proposed. In this embodiment, step S20 includes:

Step S201, during the operation of the air conditioner in the first ventilation mode, if there is an instruction to start the second ventilation mode, obtain the indoor temperature, outdoor temperature and target humidity, and the target humidity is the second ventilation mode. The humidity of the air that needs to be introduced into the air duct when the ventilation mode is running;

Specifically, when the second ventilation mode is the fresh air mode, the target humidity is the humidity of the outdoor air. When the second ventilation mode is the exhaust mode, the target humidity is the humidity of the indoor air.

Step S202, determining whether there is a risk of condensation in the air duct when the air conditioner is switched to the second ventilation mode according to the indoor temperature, outdoor temperature and the target humidity;

Different indoor temperatures, outdoor temperatures, and target humidity correspond to different degrees of condensation risk in the air duct when switching to the second ventilation mode.

Step S203, if it is determined that there is a risk of condensation in the air duct when the air conditioner is switched to the second ventilation mode, perform the control of the air conditioner to perform a temperature adjustment operation, and control the air conditioner to switch to The step of operating in the second ventilation mode.

Further, after step S202, it also includes:

Step S204, if it is determined that there is no risk of condensation in the air duct when the air conditioner switches to the second ventilation mode, control the air conditioner to switch to the second ventilation mode.

In this embodiment, when it is necessary to switch from the first ventilation mode to the second ventilation mode, first use the indoor and outdoor temperature and humidity to identify whether there is a risk of condensation in the air duct when switching to the second ventilation mode. When the risk of condensation is identified, the temperature adjustment operation is added during the process of switching to the second ventilation mode, otherwise, it is directly switched to the second ventilation mode, so as to prevent condensation in the air duct and ensure ventilation. Gas mode switching efficiency.

In this embodiment, step S202 is specifically as follows: when the first target temperature is lower than the first set temperature, the second target temperature is greater than the second set temperature, and the target humidity is greater than the set humidity, determine that the air conditioner is switched There is a risk of condensation in the air duct when the second ventilation mode is running; when the first target temperature is greater than or equal to the first set temperature, or, when the second target temperature is less than or equal to When the second set temperature, or, when the target humidity is less than or equal to the set humidity, it is determined that there is no risk of condensation in the air duct when the air conditioner is switched to the second ventilation mode; Wherein, the first target temperature is the temperature of the air entering the air duct in the first ventilation mode among the indoor temperature and the outdoor temperature, and the second target temperature is the temperature between the indoor temperature and the outdoor temperature. Among the outdoor temperatures, the temperature of the air entering the air passage in the second ventilation mode, the first set temperature is lower than the second set temperature. For example, when the first ventilation mode is the fresh air mode, the second ventilation mode is the exhaust mode, and the air conditioner is in heating operation, the first target temperature is the outdoor temperature, the second target temperature is the indoor temperature, and the target humidity is the indoor humidity; When the first ventilation mode is the exhaust mode, the second ventilation mode is the fresh air mode, and the air conditioner is in cooling operation, the first target temperature is the indoor temperature, the second target temperature is the outdoor temperature, and the target humidity is the outdoor humidity. The first set temperature and the second set temperature are specifically based on the maximum temperature allowed by the first target temperature and the allowable second target temperature when there is a risk of condensation in the air duct when the first ventilation mode is switched to the second ventilation mode The minimum temperature reached is set. In this embodiment, the first set temperature is 5 degrees Celsius, and the second set temperature is 15 degrees Celsius. In other embodiments, the first set temperature and the second set temperature can also be set to other temperatures according to actual needs. Here, when the air introduced by the first ventilation mode is too low, and the temperature and humidity of the air introduced by the second ventilation mode are too high, it can be considered that condensation water will easily appear when the first ventilation mode is switched to the second ventilation mode ; Otherwise, it can be considered that condensation water is not easy to appear when the first ventilation mode is switched to the second ventilation mode, so that the indoor and outdoor temperature and humidity can be used to accurately identify the air duct when the first ventilation mode is switched to the second ventilation mode. condensation risk.

It should be noted that, when judging whether there is a risk of condensation in the air duct based on the first target temperature, the second target temperature, and the target humidity in this embodiment, if it is determined that there is a risk of condensation in the air duct, the above step S21 is executed In the process of running to step S24, the air conditioner can stop the fan, stop the air conditioner, or stop the cooling operation, etc. Internal circulation operation or heating is turned on to reduce the temperature difference between the air duct and the temperature of the air introduced by switching to the second ventilation mode.

In other embodiments, the temperature difference between indoor and outdoor temperatures can also be directly determined. When the temperature difference is greater than the set temperature difference and the target humidity is greater than the set humidity, it can be determined that there is Condensation risk; otherwise, when the temperature difference is less than or equal to the set temperature difference, or the target humidity is less than or equal to the set humidity, it can be determined that there is no risk of condensation in the air duct when the first ventilation mode is switched to the second ventilation mode.

Further, based on any of the above-mentioned embodiments, in this embodiment, the air conditioner further includes a partition and a fan, and the housing is provided with an outdoor air outlet, an indoor air inlet and an indoor air outlet, and the partition is arranged on Inside the casing and divides the air channel into a first air chamber and a second air chamber, the partition is provided with a first air port and a second air port, and the first air port and the second air port are connected to each other. The first air chamber and the second air chamber, the outdoor air outlet is arranged in the first air chamber, the indoor air inlet and the indoor air outlet are both arranged in the second air chamber, the The fan is installed in the second air cavity;

The step of controlling the air conditioner to operate in the first ventilation mode includes:

When the first ventilation mode is the fresh air mode, the first air outlet is opened, the second air outlet is closed, and the fan is controlled to be turned on. When the fan is turned on, the outdoor air passes through the outdoor air outlet, the The first air chamber, the first air port, the second air chamber and the indoor air inlet are sent into the room;

When the first ventilation mode is the exhaust mode, the first air outlet is closed, the second air outlet is opened, and the fan is controlled to be turned on. When the fan is turned on, the indoor air passes through the indoor air inlet sequentially. , the second air chamber, the second air outlet, the first air chamber and the outdoor air outlet are discharged outdoors;

The step of controlling the air conditioner to switch to the second ventilation mode includes:

When the second ventilation mode is the fresh air mode, the first air outlet is opened, the second air outlet is closed, and the fan is controlled to be turned on. When the fan is turned on, the outdoor air passes through the outdoor air outlet, the The first air chamber, the first air port, the second air chamber and the indoor air inlet are sent into the room;

When the second ventilation mode is the exhaust mode, the first air outlet is closed, the second air outlet is opened, and the fan is controlled to be turned on. When the fan is turned on, the indoor air passes through the indoor air inlet sequentially. , the second air chamber, the second air outlet, the first air chamber and the outdoor air outlet are discharged outdoors.

Among them, in the exhaust mode, the indoor air outlet can be opened or closed according to actual needs. Among them, when the indoor air outlet is closed, the resistance of the fresh air duct during the exhaust process is reduced, and the exhaust efficiency of the air conditioner is improved.

Further, when the internal circulation operation needs to be started, the indoor air inlet can be opened to control the fan to be turned on; when the internal circulation operation is closed, the indoor air inlet can be closed.

Further, in the embodiment of the present invention, the first air outlet is arranged on the air inlet side of the fan, and the second air outlet is arranged on the air outlet side of the fan, defining the air flow of the fan in the fresh air mode. The turning is the first turning, and the turning of the fan in the exhaust mode is defined as the second turning. The first turning is the same as the second turning. Based on this, the air conditioner can be realized without the fan being reversed. Switch between different ventilation modes to increase the service life of the fan.

Further, in order to better understand the related solutions involved in the control method of the above-mentioned air conditioner, two specific applications of the above-mentioned control method are proposed as follows:

Application 1, the air conditioner turns on the fresh air function and runs for heating, detects the indoor temperature T1, indoor relative humidity H1, and fresh air temperature TX0, and calculates the indoor dew point temperature TL through T1 and H1. During this process, the air conditioner receives the instruction to turn on the exhaust, if the exhaust fan to be turned on is the low fan, then TX0<5°C, T1>15°C and H1>70%, the fan in the air duct can be controlled to stop , close the indoor air outlet. When the fan is shutting down, it can detect the temperature TX1 detected by the sensor in the air duct and the time t1 when the fan stops. Air outlet, close the first air outlet, so that the indoor air can be discharged outside through the air duct. If it is not satisfied at the same time, TX0<5℃, T1>15℃ and H1>70%, then the target speed can be controlled to control the exhaust operation, and the indoor air inlet will be opened, the second air outlet will be opened, and the first air outlet will be closed to make the indoor air pass through The air duct is exhausted to the outside.

Application 2, the air conditioner turns on the fresh air function and runs for heating, detects the indoor temperature T1, indoor relative humidity H1, and fresh air temperature TX0, and calculates the indoor dew point temperature TL through T1 and H1. During this process, the air conditioner receives an instruction to turn on the exhaust. If the exhaust fan to be turned on is the low fan, then TX0<5°C, T1>15°C and H1>70%, the PTC pair in the air duct can be turned on. The air duct is heated, the target speed is controlled to control the exhaust operation, and the indoor air inlet is opened, the second air outlet is opened, and the first air outlet is closed, so that the indoor air is discharged outside through the air duct. During this process, the temperature TX1 detected by the sensor in the air duct and the time t1 when the fan stops can be detected, TX1>TL or t1>60s, and the PTC can be turned off. If it is not satisfied at the same time, TX0<5℃, T1>15℃ and H1>70%, then the target speed can be controlled to control the exhaust operation, and the indoor air inlet will be opened, the second air outlet will be opened, and the first air outlet will be closed to make the indoor air pass through The air duct is exhausted to the outside.

In addition, the embodiment of the present invention also proposes a computer-readable storage medium, the computer-readable storage medium stores the control program of the air conditioner, and when the control program of the air conditioner is executed by the processor, the above control of the air conditioner is realized. The relevant steps of any embodiment of the method.

It should be noted that, as used herein, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or system comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or system. Without further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system comprising that element.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present invention can be embodied in the form of a software product in essence or in other words, the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM) as described above. , magnetic disk, optical disk), including several instructions to make a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) execute the method described in each embodiment of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (11)

1. A control method of an air conditioner is characterized by comprising the following steps:

controlling the air conditioner to operate in a first ventilation mode;

in the process that the air conditioner operates in a first ventilation mode, if an opening instruction of a second ventilation mode exists, controlling the air conditioner to execute temperature regulation operation, and controlling the air conditioner to switch to the second ventilation mode to operate;

the temperature adjusting operation is used for reducing the temperature difference between air entering the air duct and the air duct in the second air exchange mode, the first air exchange mode is one of a fresh air mode and an exhaust mode, the second air exchange mode is the other of the fresh air mode and the exhaust mode, outdoor air enters the room through the air duct of the air conditioner in the fresh air mode, and indoor air is exhausted out of the room through the air duct in the exhaust mode.

2. The method of controlling an air conditioner according to claim 1, wherein the controlling the air conditioner to perform a temperature adjusting operation, the controlling the air conditioner to switch to the second ventilation mode operation comprises:

when the first air exchange mode is a fresh air mode, the second air exchange mode is an exhaust mode and the air conditioner is in heating operation, controlling a fan in the air duct to stop so as to improve the temperature of the air duct, wherein the temperature adjusting operation comprises the stop of the fan;

and when the fan is stopped until the air duct does not have condensation risk, controlling the air conditioner to be switched to the exhaust mode for operation.

3. The method of controlling an air conditioner according to claim 1, wherein the controlling the air conditioner to perform a temperature adjusting operation, the controlling the air conditioner to switch to the second ventilation mode operation comprises:

when the first air exchange mode is a fresh air mode, the second air exchange mode is an exhaust mode and the air conditioner is in heating operation, the heating module in the air duct is controlled to be started, the air conditioner is controlled to be switched to the exhaust mode to operate, and the temperature adjusting operation comprises the step of starting the heating module.

4. The method of controlling an air conditioner according to claim 1, wherein the controlling the air conditioner to perform a temperature adjusting operation, the controlling the air conditioner to switch to the second ventilating mode operation comprises:

when the first air exchange mode is an exhaust mode, the second air exchange mode is a fresh air mode and the air conditioner is in refrigerating operation, controlling the air conditioner to start internal circulation operation and controlling the air conditioner to switch to the fresh air mode to operate, wherein when the internal circulation operation is started, indoor air enters the air duct and is mixed with outdoor air entering the air duct, and the temperature regulation operation comprises the internal circulation operation.

5. The method of controlling an air conditioner according to claim 1, further comprising, after the step of controlling the air conditioner to perform a temperature adjusting operation:

acquiring state parameters in the process of executing the temperature adjusting operation; the state parameter is a parameter representing the condensation risk condition of the air duct;

and when the air duct is determined to have no condensation risk according to the state parameters, controlling the air conditioner to stop executing the temperature adjusting operation.

6. The control method of an air conditioner according to claim 5, wherein the step of acquiring the state parameter includes:

detecting a first temperature in the air duct and an execution time length of the temperature adjusting operation, wherein the state parameters comprise the first temperature and the execution time length;

after the step of obtaining the state parameters, the method further comprises:

when the first temperature is greater than or equal to a target dew point temperature, or when the execution duration is greater than or equal to a target duration, determining that the air duct has no condensation risk;

and the target dew point temperature is the dew point temperature of the air entering the air duct in the second ventilation mode.

7. The method as claimed in any one of claims 1 to 6, wherein the step of controlling the air conditioner to perform a temperature adjusting operation if there is an on command of a second ventilation mode while the air conditioner is operating in the first ventilation mode, and the step of controlling the air conditioner to switch to the second ventilation mode includes:

in the process that the air conditioner operates in a first air exchange mode, if an opening instruction of a second air exchange mode exists, acquiring indoor temperature, outdoor temperature and target humidity, wherein the target humidity is the humidity of air which needs to be introduced into the air duct when the air conditioner operates in the second air exchange mode;

determining whether condensation risks exist in the air duct when the air conditioner is switched to the second ventilation mode according to the indoor temperature, the outdoor temperature and the target humidity;

and if the air duct has the condensation risk when the air conditioner is switched to the second ventilation mode, controlling the air conditioner to perform temperature regulation operation and controlling the air conditioner to be switched to the second ventilation mode to operate.

8. The method of controlling an air conditioner according to claim 7, wherein after the step of determining whether there is a risk of condensation in the duct when the air conditioner is switched to the second ventilating mode according to the indoor temperature, the outdoor temperature, and the target humidity, the method further comprises:

and if the air duct is determined to have no condensation risk when the air conditioner is switched to the second air exchange mode, controlling the air conditioner to be switched to the second air exchange mode to operate.

9. The method of controlling an air conditioner according to claim 7, wherein the step of determining whether there is a risk of condensation in the duct when the air conditioner is switched to the second ventilating mode according to the indoor temperature, the outdoor temperature, and the target humidity includes:

when the first target temperature is lower than a first set temperature, the second target temperature is higher than a second set temperature and the target humidity is higher than the set humidity, determining that the air duct has a condensation risk when the air conditioner is switched to the second ventilation mode;

when the first target temperature is greater than or equal to the first set temperature, or when the second target temperature is less than or equal to the second set temperature, or when the target humidity is less than or equal to the set humidity, determining that the air duct does not have the condensation risk when the air conditioner is switched to the second ventilation mode;

the first target temperature is the temperature of the air in the air duct entering the first ventilation mode in the indoor temperature and the outdoor temperature, the second target temperature is the temperature of the air in the air duct entering the second ventilation mode in the indoor temperature and the outdoor temperature, and the first set temperature is smaller than the second set temperature.

10. An air conditioner, characterized in that the air conditioner comprises: a memory, a processor, and a control program of an air conditioner stored on the memory and executable on the processor, the control program of the air conditioner implementing the steps of the control method of the air conditioner as claimed in any one of claims 1 to 9 when executed by the processor.

11. A computer-readable storage medium, characterized in that a control program of an air conditioner is stored thereon, which when executed by a processor, implements the steps of the control method of an air conditioner according to any one of claims 1 to 9.

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