WO2021035892A1

WO2021035892A1 - Air conditioner and air conditioner cleaning method

Info

Publication number: WO2021035892A1
Application number: PCT/CN2019/110896
Authority: WO
Inventors: 彭炳全; 胡碧君; 吴民安
Original assignee: 海信家电集团股份有限公司; 海信（广东）空调有限公司
Priority date: 2019-08-23
Filing date: 2019-10-12
Publication date: 2021-03-04
Also published as: JP2022501561A; JP7144463B2

Abstract

An air conditioner and an air conditioner cleaning method, which relate to the technical field of air conditioners. The cleaning method is used for effectively cleaning the air conditioner. The air conditioner comprises an outdoor unit (10) and an indoor unit (20). The indoor unit (20) comprises an indoor unit controller (21) and an indoor unit fan (24). The indoor unit controller (21) is used for: controlling the air conditioner to enter a drying state according to a drying instruction and a running state of the air conditioner when the air conditioner receives the drying instruction; controlling the air conditioner to enter the heating process of the drying state; or controlling the air conditioner to enter a cleaning state when the air conditioner receives a cleaning instruction; controlling the air conditioner to enter the cooling process of the cleaning state; controlling the air conditioner to enter the heating process of the cleaning state after the air conditioner ends the cooling process of the cleaning state; controlling the indoor unit fan (24) to run at a preset rotational speed after the air conditioner enters the heating process of the drying state for a third time or after the air conditioner enters the heating process of the cleaning state. The embodiments are applied to the cleaning of the air conditioner.

Description

Air conditioner and air conditioner cleaning method

This application requires that it be submitted to the Chinese Patent Office on August 23, 2019, the application number is 201910785967.8, and the title of the invention is "A method for cleaning air conditioners and air conditioners". It is submitted to the China Patent Office on August 23, 2019, and the application number is 201910786747.7. Invention The name is "A method for air-conditioning and air-conditioning cleaning", submitted to the Chinese Patent Office on August 23, 2019, the application number is 201910786083.4, the name of the invention is "A method for air-conditioning and air-conditioning cleaning", and the Chinese patent is filed on August 23, 2019 Office, application number 201910785987.5, the title of the invention is "a method for air-conditioning and air-conditioning cleaning" the priority of the Chinese patent application, the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the technical field of air conditioners, in particular to an air conditioner and an air conditioner cleaning method.

Background technique

After the air conditioner is placed or used for a long time, there will be a certain amount of dirt on the surface of the heat exchanger, which will reduce the heat exchange efficiency of the heat exchanger, thereby causing the performance of the air conditioner to decrease and the energy consumption to increase. The existing air conditioner cleaning method mainly uses cooling to generate condensed water on the surface of the heat exchanger of the indoor unit, and then heats the condensed water to blow dry, and uses the condensed water to take away the dust.

In the process of achieving the above-mentioned air conditioner cleaning, the inventor found that at least the following problems exist in the prior art:

In the actual implementation process, there may be situations where there is too little condensed water leading to poor cleaning effect, and the condensed water is not effectively blown dry, resulting in no cleaning effect, etc. These situations affect the user experience.

Summary of the invention

The embodiments of the present application provide an air conditioner and an air conditioner cleaning method, which are used to solve the problem of poor air conditioner cleaning effect in the prior art and effectively clean the air conditioner.

In order to achieve the foregoing objectives, the embodiments of the present application adopt the following technical solutions:

In a first aspect, an air conditioner is provided, which is characterized by comprising: an outdoor unit and an indoor unit; the indoor unit includes an indoor unit controller and an indoor unit fan; and the indoor unit controller is used for:

When the air conditioner receives a drying instruction, controlling the air conditioner to enter a dry state according to the drying instruction and the operating state of the air conditioner;

Controlling the heating process in which the air conditioner enters the dry state;

or,

When the air conditioner receives a cleaning instruction, controlling the air conditioner to enter a cleaning state;

Controlling the air conditioner to enter the refrigeration process of the clean state;

After the air conditioner ends the cooling process in the clean state, controlling the air conditioner to enter the heating process in the clean state;

After the air conditioner enters the heating process in the dry state for a third time, or after the air conditioner enters the heating process in the clean state, the indoor unit fan is controlled to run at a preset speed.

In a second aspect, an embodiment of the present application provides an air conditioner cleaning method, which is applied to the air conditioner according to the first aspect, and the air conditioner cleaning method includes:

or,

In a third aspect, a computer-readable storage medium storing one or more programs is provided. The one or more programs include instructions that when executed by a computer cause the computer to execute as described in the second aspect. The air conditioner cleaning method.

In a fourth aspect, a computer program product containing instructions is provided, when the instructions are run on a computer, the computer executes the air conditioner cleaning method as described in the second aspect.

In a fifth aspect, an air conditioner cleaning device is provided, including a processor and a memory, the memory is used to store a program, and the processor calls the program stored in the memory to execute the air conditioner cleaning method described in the second aspect.

According to the air conditioner and the air conditioner cleaning method provided by the embodiments of the present application, the air conditioner is controlled to enter the dry state according to the drying instruction and the operating state of the air conditioner, or, when the cleaning instruction is received, the air conditioner is controlled to enter the clean state; the heating process in the dry state In the cooling process, the condensation water on the surface of the indoor unit coil is accelerated by heating to remove the condensed water generated during the cooling or dehumidification operation of the air conditioner; in the cooling process of the clean state, the surface of the indoor unit coil is frosted by cooling , Control the compressor to stop working according to the temperature and duration measured by the sensor to ensure sufficient frosting time; in the heating process in the clean state, defrost by heating to produce condensed water and take away the indoor unit coil The dust on the surface cleans the coil of the indoor unit, and then evaporates the excess condensed water by heating. The indoor unit fan runs at a preset wind speed to dry the remaining condensate on the surface of the indoor unit coil. The problem of poor cleaning effect of the air conditioner in the prior art is solved, and the air conditioner is effectively cleaned.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art.

FIG. 1 is a schematic structural diagram of an air conditioner provided by an embodiment of the application;

FIG. 2 is a schematic flow chart 1 of an air conditioner cleaning method provided by an embodiment of the application;

FIG. 3 is a second flowchart of the air conditioner cleaning method provided by the embodiment of the application;

4 is a schematic diagram 1 of the control flow of the indoor unit fan provided by the embodiment of the application;

FIG. 5 is a second schematic diagram of the control flow of the indoor unit fan provided by the embodiment of the application;

FIG. 6 is a third flowchart of the air conditioner cleaning method provided by the embodiment of the application;

FIG. 7 is a fourth flowchart of a method for cleaning an air conditioner provided by an embodiment of the application;

FIG. 8 is a schematic flowchart five of the air conditioner cleaning method provided by the embodiment of the application;

FIG. 9 is a sixth flowchart of an air conditioner cleaning method provided by an embodiment of the application.

detailed description

The embodiments of the present application will be described below in conjunction with the drawings.

As shown in FIG. 1, some embodiments of the present application provide an air conditioner, which may be a split air conditioner composed of an outdoor unit 10 and an indoor unit 20.

The outdoor unit 10 includes: outdoor unit controller 11, outdoor ambient temperature sensor 12, compressor 13, electronic expansion valve 14, outdoor unit fan 15, outdoor unit coil 16; indoor unit 20 includes: indoor unit controller 21, indoor unit The coil temperature sensor 22, the indoor unit coil 23, the indoor unit fan 24, and the indoor ambient temperature sensor 25. Those of ordinary skill in the art can understand that the structure shown in FIG. 1 is only for illustration, and does not limit the structure of the outdoor unit 10 and the indoor unit 20. For example, the indoor unit 20 may include more or fewer components than that shown in FIG. 1, or have a different configuration from that shown in FIG.

The indoor unit controller 21 can determine the working status of each sensor, obtain the temperature measured by each sensor, and can send a corresponding signal to the outdoor unit controller 11 according to an instruction sent by the user. The outdoor unit controller 11 can control the compressor 13 and the electronic expansion valve 14 according to the signal sent by the indoor controller 21 and the temperature measured by the sensor.

The indoor unit controller 21 may execute the following air-conditioning cleaning method. As shown in Figure 2, the air conditioner cleaning method includes:

S201: When the air conditioner receives a cleaning instruction, control the air conditioner to enter a cleaning state.

The user instruction may be an instruction sent by the user to the indoor unit controller 21 through a wire controller or a remote control according to requirements, such as a drying instruction, a cleaning instruction, an automatic cleaning instruction, a power-on instruction, and a stop instruction. The operating state of the air conditioner may be a standby state, a cooling state, a heating state, a dehumidification state, a dry state, a cleaning state, and other operating states.

In some embodiments, when the air conditioner receives a cleaning instruction, it is confirmed whether it enters the cleaning state according to the temperature measured by the outdoor ambient temperature sensor 12.

For example, after receiving the cleaning instruction, it is determined whether the temperature measured by the outdoor environmental temperature sensor 12 is lower than the first temperature, and if the temperature measured by the outdoor environmental temperature sensor 12 is not lower than the first temperature, the air conditioner is controlled to enter the clean state.

In some embodiments, when the air conditioner receives a cleaning instruction, it is confirmed whether it enters the cleaning state according to the operating state of the air conditioner.

If the air conditioner is in the standby state, confirm that it enters the cleaning state.

In some embodiments, if the air conditioner is in an operating state such as a cooling state, a heating state, or a dehumidification state, it will wait for the end of the cooling state, heating state, and dehumidification state before entering the cleaning state. Avoid fast switching of states and damage the compressor.

In some embodiments, when the air conditioner receives the cleaning instruction, it is confirmed whether it enters the cleaning state according to the operating state of the air conditioner and the temperature measured by the outdoor ambient temperature sensor 12.

If the air conditioner is in the standby state, a cleaning instruction is received and the temperature measured by the outdoor ambient temperature sensor 12 is not lower than the first temperature, the air conditioner is controlled to enter the cleaning state.

After receiving the cleaning instruction, the indoor unit controller 21 obtains the temperature measured by the outdoor environment temperature sensor 12 to determine whether the outdoor environment temperature is low, so as to avoid the execution of the cleaning instruction causing the drain pipe to be blocked when the outdoor environment temperature is low. The condensed water flows out into the room, which has a greater impact on the user experience.

For example, the first temperature may be 0 degrees Celsius, and the temperature measured by the outdoor environment temperature sensor 12 may be 15 degrees Celsius. After receiving the cleaning instruction, determine the current operating state of the air conditioner. If the current air conditioner is in the standby state, the temperature measured by the outdoor environment temperature sensor 12 is 15 degrees Celsius, and it is determined that the temperature measured by the outdoor environment temperature sensor 12 is greater than the first temperature 0 degrees Celsius, and the air conditioner is controlled to enter the clean state.

S202: Control the air conditioner to enter a refrigeration process in a clean state.

After the air conditioner enters the clean state, first control the cooling process of the air conditioner into the clean state. The outdoor unit controller 11 controls the compressor 13 and the electronic expansion valve 14 to switch to the cooling state according to the instructions of the indoor unit controller 21 to make the surface of the indoor unit coil 23 frost.

In some embodiments, after the air conditioner enters the cleaning state, the indoor cleaning indicator light is controlled to light up to remind the user that the air conditioner is being cleaned.

In some embodiments, after the air conditioner enters the cleaning state, if any sensor fails, the control room cleaning indicator flashes to remind the user that the sensor fails.

In some embodiments, after the air conditioner enters the clean state, the air deflector of the indoor unit is controlled to be upward or closed to avoid affecting the user experience.

In some embodiments, after the air conditioner enters the cleaning state and receives a power-on instruction, it exits the cleaning state and is turned on.

In some embodiments, after the air conditioner enters the cleaning state and receives a stop instruction, it exits the cleaning state and enters the standby state.

S203: Control the frequency of the compressor.

In some embodiments, after the air conditioner enters a cooling process in a clean state, the outdoor unit controller 11 is instructed to control the frequency of the compressor 13 according to the temperature measured by the indoor ambient temperature sensor 25. While ensuring the frosting effect on the surface of the indoor unit coil 23, the consumption of the cooling process in a clean state is reduced.

For example, when the temperature measured by the indoor ambient temperature sensor 25 is greater than or equal to 5 degrees Celsius, the outdoor unit controller 11 may not adjust the frequency of the compressor 13; when the temperature measured by the indoor ambient temperature sensor 22 is less than 5 degrees Celsius, the outdoor unit controller 11 11 can appropriately reduce the frequency of compressor 13.

S204. Control the indoor unit fan to run at a preset speed.

In some embodiments, after the air conditioner enters the cooling process of the clean state for the first time, the indoor unit fan 24 is controlled to run at a preset speed.

In some embodiments, after the air conditioner enters a cooling process in a clean state, the indoor unit fan 24 is controlled to operate at a preset speed for a second time.

In some embodiments, after the air conditioner enters a cooling process in a clean state, the indoor unit fan 24 is controlled to continue to run at a preset speed.

In some embodiments, after the air conditioner finishes the cooling process in the clean state, the indoor unit fan 24 is controlled to continue to run at a preset rotation speed.

S205: When the air conditioner is in a refrigeration process in a clean state and the stop condition is met, instruct the outdoor unit controller to control the compressor to stop working.

In some embodiments, the stopping condition is that the temperature measured by the indoor unit coil temperature sensor 22 is less than or equal to the first cooling temperature and the duration is greater than the first cooling time.

For example, the first cooling temperature may be minus 19 degrees Celsius, and the first cooling time may be 6 minutes. When the temperature measured by the indoor unit coil temperature sensor 22 is less than or equal to minus 19 degrees Celsius for a duration of more than 6 minutes, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

In some embodiments, the stopping condition is that the temperature measured by the indoor ambient temperature sensor 25 is less than or equal to the second cooling temperature and the duration is greater than the first cooling time.

For example, the second cooling temperature may be 5 degrees Celsius, the first cooling time may be 6 minutes, and the temperature measured by the indoor ambient temperature sensor 25 is less than or equal to 5 degrees Celsius for more than 6 minutes, and the outdoor unit controller 11 is instructed to control the compressor 13 Stop working.

In some embodiments, the duration of the refrigeration process whose stopping condition is the clean state is greater than the second refrigeration time. For example, the second cooling time may be 12 minutes. When the duration of the refrigeration process in the clean state is greater than 12 minutes, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

In some embodiments, the stopping condition is that the temperature measured by the indoor unit coil temperature sensor 22 is less than or equal to the first cooling temperature and the duration is greater than the first cooling time, or the temperature measured by the indoor ambient temperature sensor 25 is less than or equal to the first cooling time. The second refrigeration temperature and the duration is greater than the first refrigeration time. That is, when at least one of the two conditions is met, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

In some embodiments, the stopping condition is that the temperature measured by the indoor unit coil temperature sensor 22 is less than or equal to the first cooling temperature and the duration is greater than the first cooling time, or the duration of the cooling process in the clean state is greater than the second cooling time. time. The second cooling time is greater than the first cooling time. That is, when at least one of the two conditions is met, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

In some embodiments, the stopping condition is that the temperature measured by the indoor ambient temperature sensor 25 is less than or equal to the second cooling temperature and the duration is greater than the first cooling time, or the duration of the cooling process in the clean state is greater than the second cooling time. The second cooling time is greater than the first cooling time. That is, when at least one of the two conditions is met, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

In some embodiments, the stopping condition is that the temperature measured by the indoor unit coil temperature sensor 22 is less than or equal to the first cooling temperature and the duration is greater than the first cooling time, or the temperature measured by the indoor ambient temperature sensor 25 is less than or equal to the first cooling time. Second, the refrigeration temperature and duration are greater than the first refrigeration time, or the duration of the refrigeration process in the clean state is greater than the second refrigeration time, and the second refrigeration time is greater than the first refrigeration time. That is, when at least one of the three conditions is met, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

For example, the first cooling temperature may be minus 19 degrees Celsius, the second cooling temperature may be 5 degrees Celsius, the first cooling time may be 6 minutes, and the second cooling time may be 12 minutes. The temperature measured by the indoor unit coil temperature sensor 22 is less than or equal to minus 19 degrees Celsius for more than 6 minutes, or the temperature measured by the indoor ambient temperature sensor 25 is less than or equal to 5 degrees Celsius for more than 6 minutes, or in a clean state The duration of the refrigeration process is greater than 12 minutes. When at least one of the three conditions is met, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

S206. Control the air conditioner to enter a heating process in a clean state.

After the air conditioner enters the heating process in the clean state, the outdoor unit controller 11 controls the compressor 13 and the electronic expansion valve 14 to switch to the heating state according to the instructions of the indoor unit controller 21 to defrost the surface of the indoor unit coil 23.

In some embodiments, after the air conditioner enters the cleaning state for the third time during the heating process, the indoor unit fan 24 is controlled to run at a preset speed.

In some embodiments, after the air conditioner enters the heating process in the clean state, the indoor unit fan 24 is controlled to run at a preset speed for a fourth period of time.

In some embodiments, after the air conditioner enters the heating process in the clean state, the indoor unit fan 24 is controlled to continue to run at a preset speed.

S207: When the air conditioner is in a heating process in a clean state and the exit condition is met, instruct the outdoor unit controller to control the compressor to stop working.

In some embodiments, the exit condition is that the temperature measured by the indoor unit coil temperature sensor 22 is greater than the first heating temperature and the duration is greater than the first heating time.

For example, the first heating temperature may be 50 degrees Celsius, and the first heating time may be 30 seconds. When the temperature measured by the indoor unit coil temperature sensor 22 is greater than 50 degrees Celsius and the duration is greater than 30 seconds, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

In some embodiments, the duration of the heating process whose exit condition is the clean state is greater than the second heating time.

For example, the second heating time may be 7 minutes. When the duration of the heating process in the clean state is greater than 7 minutes, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

In some embodiments, the exit condition is that the temperature measured by the indoor unit coil temperature sensor 22 is greater than the first heating temperature and the duration is greater than the first heating time, or the duration of the heating process in the clean state is greater than the second heating time. Heating time. The second heating time is longer than the first heating time. That is, when at least one of the two conditions is met, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

For example, the first heating temperature may be 50 degrees Celsius, the first heating time may be 30 seconds, and the second heating time may be 7 minutes. The temperature measured by the indoor unit coil temperature sensor 22 is greater than 50 degrees Celsius and the duration is greater than 30 seconds, or the duration of the heating process in the clean state is greater than 7 minutes. When at least one of the two conditions is met, the outdoor unit controller is instructed 11 Control the compressor 13 to stop working.

S208: Control the air conditioner to exit the cleaning state.

Control the air conditioner to exit the cleaning state and enter the standby state.

In some embodiments, after the air conditioner exits the cleaning state, the indoor cleaning indicator light is turned off.

In some embodiments, as shown in FIG. 3, based on the method shown in FIG. 2, the method may further include step S209:

S209: When the air conditioner is in a cooling process in a clean state, send a simulated indoor unit coil temperature sensor temperature to the outdoor unit controller.

Wherein, the temperature of the simulated indoor unit coil temperature sensor 22 is greater than the anti-freezing protection temperature.

Some air conditioners have an anti-freeze protection function. When the temperature of the indoor unit coil 23 is lower than the anti-freeze protection temperature, the air conditioner will trigger the anti-freeze protection function of the air conditioner. At this time, the outdoor unit controller 11 will control the compressor 13 and The operation of the electronic expansion valve 14 is stopped to avoid damage to the indoor unit coil 23 and other components caused by the air conditioner running in a long-term low temperature state.

During the cooling process, the temperature measured by the indoor unit coil temperature sensor 22 may be lower than the anti-freeze protection temperature. In order to prevent the anti-freeze protection function from affecting the frosting effect of the indoor unit coil 23, the indoor unit controller 21 can send the simulated indoor unit coil temperature sensor 22 to the outdoor unit controller 11 to make the outdoor unit controller The anti-freezing protection function of 11 is invalid to avoid the influence of triggering the anti-freezing protection.

For example, the anti-freezing protection temperature may be 5 degrees Celsius. When the compressor 13 and the electronic expansion valve 14 are in the cooling state, the indoor unit controller 21 can continuously send the simulated indoor unit coil temperature sensor 22 temperature of 10 degrees Celsius to invalidate the anti-freezing protection function of the outdoor unit controller 11.

In some embodiments, as shown in FIG. 3, based on the method shown in FIG. 2, the method may further include step S210:

S210. Before the air conditioner enters the heating process in the clean state, control the air conditioner to enter the protection process.

Before the air conditioner enters the heating process in the clean state, the air conditioner is controlled to enter the protection process to avoid the rapid switching of the state and damage the compressor.

In some embodiments, as shown in FIG. 4, after the air conditioner enters the protection process, the indoor unit fan 24 is controlled to run at a preset speed.

In some embodiments, as shown in FIG. 5, after the air conditioner enters the protection process, the indoor unit fan 24 is controlled to stop running.

In some embodiments, after the air conditioner enters the protection process for the fifth time, the air conditioner is controlled to enter the heating process in the clean state.

For example, the fifth time may be 3 minutes, and 3 minutes after the air conditioner enters the protection process, the air conditioner is controlled to enter the heating process in the clean state.

As shown in FIG. 6, in some embodiments of the present application, in addition to receiving a cleaning instruction and controlling the air conditioner to enter the cleaning state, the indoor unit controller 21 may also, when the air conditioner receives a drying instruction, follow the drying instruction and the operating state of the air conditioner. , Control the air conditioner to enter the dry state, and clean the air conditioner through the dry state:

S601. When the air conditioner receives a drying instruction, control the air conditioner to enter a drying state according to the drying instruction and the operating state of the air conditioner.

After the air conditioner continues to operate in the cooling or dehumidifying state for a certain period of time, condensed water will be generated on the surface of the indoor unit coil 23. At this time, it needs to be cleaned by a process in a dry state.

In some embodiments, the air conditioner enters the standby state after the continuous operation time is greater than the sixth time in the cooling or dehumidifying state, and the drying instruction is received before the air conditioner enters the standby state, and the air conditioner is controlled to enter the dry state.

For example, the sixth time may be 20 minutes. The air conditioner enters the standby state after 25 minutes of continuous operation in the cooling or dehumidifying state, and receives a drying instruction before the air conditioner enters the standby state, and confirms that it enters the dry state.

In some embodiments, after receiving the automatic cleaning instruction, the air conditioner is controlled to enter the heating process whenever the air conditioner enters the standby state after being continuously operated in the cooling or dehumidifying state for more than a sixth time. The user can send an automatic cleaning instruction to the indoor unit controller 21 to automatically remove the condensed water on the surface of the indoor unit coil 23 and improve the user experience.

In some embodiments, if the air conditioner is in the cooling or dehumidifying state for longer than the sixth time and then enters the standby state, and the drying instruction is received before the air conditioner enters the standby state, the air conditioner is controlled after the air conditioner enters the standby state for a preset time Into a dry state. Avoid fast switching of states and damage the compressor.

For example, the sixth time may be 20 minutes, and the preset time may be 3 minutes. If the air conditioner enters the standby state after 30 minutes of continuous operation in the cooling or dehumidifying state, and receives a drying instruction before the air conditioner enters the standby state, the air conditioner is controlled to enter the dry state 3 minutes after the air conditioner enters the standby state.

S602. Control the air conditioner to enter a heating process in a dry state.

After the air conditioner enters the heating process in the dry state, the outdoor unit controller 11 controls the compressor 13 and the electronic expansion valve 14 to switch to the heating state according to the instructions of the indoor unit controller 21, and increases the temperature of the indoor unit coil 23 to speed up the surface heating. Evaporation of condensed water.

In some embodiments, after the air conditioner enters the dry state, the indoor cleaning indicator light is controlled to light up to remind the user that the air conditioner is being cleaned.

In some embodiments, after the air conditioner enters the dry state, if any sensor fails, the control room cleaning indicator flashes to remind the user that the sensor fails.

In some embodiments, after the air conditioner enters the dry state, it will exit the dry state and turn it on after receiving a power-on instruction.

In some embodiments, after the air conditioner enters the dry state and receives a stop instruction, it exits the dry state and enters the standby state.

S603. Control the indoor unit fan to run at a preset speed.

In some embodiments, after the air conditioner enters the dry heating process for the third time, the indoor unit fan 24 is controlled to run at a preset speed.

In some embodiments, after the air conditioner enters the heating process in the dry state, the indoor unit fan 24 is controlled to run at a preset speed for a fourth time.

In some embodiments, after the air conditioner enters the heating process in the dry state, the indoor unit fan 24 is controlled to continue to run at a preset speed.

S604: When the air conditioner is in the heating process in the dry state and the exit condition is met, instruct the outdoor unit controller to control the compressor to stop working.

In some embodiments, the duration of the heating process whose exit condition is the dry state is greater than the second heating time.

For example, the second heating time may be 7 minutes. When the duration of the heating process in the dry state is greater than 7 minutes, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

In some embodiments, the exit condition is that the temperature measured by the indoor unit coil temperature sensor 22 is greater than the first heating temperature and the duration is greater than the first heating time, or the duration of the heating process in the dry state is greater than the second heating time. Heating time. The second heating time is longer than the first heating time. That is, when at least one of the two conditions is met, the outdoor unit controller 11 is instructed to control the compressor 13 to stop working.

For example, the first heating temperature may be 50 degrees Celsius, the first heating time may be 30 seconds, and the second heating time may be 7 minutes. The temperature measured by the indoor unit coil temperature sensor 22 is greater than 50 degrees Celsius and the duration is greater than 30 seconds, or the duration of the heating process in the dry state is greater than 7 minutes. When at least one of the two conditions is met, the outdoor unit controller is instructed 11 Control the compressor 13 to stop working.

S605: Control the air conditioner to exit the dry state.

Control the air conditioner to exit the dry state and enter the standby state.

In some embodiments, after the air conditioner exits the dry state, the indoor cleaning indicator light is turned off.

As shown in FIG. 7, in some embodiments of the present application, the indoor unit controller 21 can control the air conditioner to enter the clean state according to the cleaning instruction, and control the air conditioner to enter the dry state according to the drying instruction to clean the air conditioner:

S701. If the air conditioner enters the standby state after the continuous operation time is greater than the sixth time in the cooling or dehumidification state, and a drying instruction is received before the air conditioner enters the standby state, control the air conditioner to enter the dry state.

S702. Control the air conditioner to enter a heating process in a dry state.

In some embodiments, as shown in FIG. 8, after controlling the air conditioner to enter the dry state, the steps S7021-S7022 may be included:

S7021. Control the indoor unit fan to stop working.

The indoor unit controller 21 controls the indoor unit fan 24 to stop working, so as to prevent the heat of the indoor unit coil 23 from being transferred to the room in the heating state, which will affect the user experience.

S7022, instruct the outdoor unit controller to control the compressor and the electronic expansion valve to switch to the heating state.

The outdoor unit controller 11 controls the compressor 13 and the electronic expansion valve 14 to switch to the heating state according to the instructions of the indoor unit controller 21, and increases the temperature of the indoor unit coil 23 to accelerate the evaporation of the condensed water on the surface.

S703. If the air conditioner is in the standby state, and the cleaning instruction is received and the temperature measured by the outdoor ambient temperature sensor is not lower than the first temperature, control the air conditioner to enter the cleaning state.

S704. Control the air conditioner to enter a refrigeration process in a clean state.

In some embodiments, as shown in Fig. 9, after controlling the air conditioner to enter the refrigeration process of the clean state, the steps S7041-S7044 may be included:

S7041. Control the indoor unit fan to continuously run at a preset speed.

S7042, instruct the outdoor unit controller to control the compressor and the electronic expansion valve to switch to a cooling state, and control the frequency of the compressor and the opening degree of the electronic expansion valve according to the temperature measured by the indoor ambient temperature sensor.

The outdoor unit controller 11 controls the compressor 13 and the electronic expansion valve 14 to switch to the cooling state according to the cooling signal sent by the indoor unit controller 21, so that the surface of the indoor unit coil 23 is frosted.

S7043: When the air conditioner is in a cooling process in a clean state, send a simulated indoor unit coil temperature sensor temperature to the outdoor unit controller.

S7044: When the air conditioner is in a refrigeration process in a clean state and the stop condition is met, instruct the outdoor unit controller to control the compressor to stop working.

Wherein, the stop condition is that the temperature measured by the indoor unit coil temperature sensor 22 is less than or equal to the first cooling temperature and the duration is greater than the first cooling time, or the temperature measured by the indoor ambient temperature sensor 25 is less than or equal to the second cooling temperature and continues The time is greater than the first refrigeration time, or the duration of the refrigeration process in the clean state is greater than the second refrigeration time. The second cooling time is greater than the first cooling time.

S705: Control the air conditioner to enter a heating process in a clean state.

The outdoor unit controller 11 controls the compressor 13 and the electronic expansion valve 14 to switch to the heating state according to the instruction of the indoor unit controller 21, and increases the temperature of the indoor unit coil 23 to defrost the surface of the indoor unit coil 23.

S706: After the air conditioner enters the heating process in the dry state or the heating process in the clean state for the third time, control the indoor unit fan to run at a preset speed.

S707: When the air conditioner is in a heating process in a dry state or a heating process in a clean state, and the exit condition is met, instruct the outdoor unit controller to control the compressor to stop working.

Wherein, the exit condition is that the temperature measured by the indoor unit coil temperature sensor 22 is greater than the first heating temperature and the duration is greater than the first heating time, or the duration of the heating process in the dry state or the heating process in the clean state is greater than The second heating time. The second heating time is longer than the first heating time.

S708: Control the air conditioner to exit the dry state or the clean state.

Control the air conditioner to exit the dry state or clean state and enter the standby state.

The embodiment of the present application provides a computer-readable storage medium storing one or more programs. The one or more programs include instructions that when executed by a computer cause the computer to execute 6-9 The air conditioner cleaning method described in Figure 9.

The embodiment of the present application provides a computer program product containing instructions. When the instructions are run on a computer, the computer executes the air-conditioning cleaning method as described in FIGS. 2 to 3 and 6 to 9.

The embodiment of the present application provides an air conditioner cleaning device, including: a processor and a memory, the memory is used to store programs, and the processor calls the programs stored in the memory to execute the programs described in FIGS. 2 to 3 and 6 to 9 The air conditioner cleaning method.

Since the air-conditioning cleaning device, computer-readable storage medium, and computer program product in the embodiments of the present application can be applied to the above-mentioned air-conditioning cleaning method, the technical effects that can be obtained can also refer to the above-mentioned method embodiments. The implementation of this application The examples are not repeated here.

It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application. The implementation process constitutes any limitation.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection between devices or units through some interfaces, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or may include one or more data storage devices such as servers and data centers that can be integrated with the medium. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

An air conditioner, characterized by comprising: an outdoor unit and an indoor unit; the indoor unit includes an indoor unit controller and an indoor unit fan; and the indoor unit controller is used for:

When the air conditioner receives a drying instruction, controlling the air conditioner to enter a dry state according to the drying instruction and the operating state of the air conditioner;

Controlling the heating process in which the air conditioner enters the dry state;

or,

When the air conditioner receives a cleaning instruction, controlling the air conditioner to enter a cleaning state;

Controlling the air conditioner to enter the refrigeration process of the clean state;

After the air conditioner ends the cooling process in the clean state, controlling the air conditioner to enter the heating process in the clean state;

After the air conditioner enters the heating process in the dry state for a third time, or after the air conditioner enters the heating process in the clean state, the indoor unit fan is controlled to run at a preset speed.
The air conditioner according to claim 1, wherein the indoor unit controller is specifically used for:

The air conditioner enters the standby state after the continuous operation time in the cooling or dehumidifying state is greater than the sixth time, and the drying instruction is received before the air conditioner enters the standby state, and the air conditioner is controlled to enter the dry state.
The air conditioner according to claim 1, wherein the outdoor unit includes an outdoor ambient temperature sensor, and the indoor unit controller is specifically configured to:

When the air conditioner is in a standby state, the cleaning instruction is received and the temperature measured by the outdoor environment temperature sensor is not lower than the first temperature, the air conditioner is controlled to enter the cleaning state.
The air conditioner according to claim 1, wherein the indoor unit controller is further used for:

After the air conditioner enters the cooling process in the clean state, the indoor unit fan is controlled to run at a preset speed.
The air conditioner according to claim 4, wherein the indoor unit controller is further specifically configured to:

Controlling the indoor unit fan to run at a preset speed after the air conditioner enters the cooling process in the clean state for a third time;

Or, after the air conditioner enters the cooling process in the clean state, controlling the indoor unit fan to run at a preset speed for a fourth time;

Alternatively, after the air conditioner enters the cooling process in the clean state, the indoor unit fan is controlled to continue to run at a preset rotation speed.
The air conditioner according to claim 1, wherein the outdoor unit further comprises: an outdoor unit controller and a compressor, the indoor unit further comprises: an indoor ambient temperature sensor; the indoor unit controller is further used for:

After the air conditioner enters the cooling process in the clean state, instruct the outdoor unit controller to control the frequency of the compressor according to the temperature measured by the indoor environment temperature sensor.
The air conditioner according to claim 1, wherein the indoor unit controller is further used for:

After the air conditioner ends the cooling process in the clean state, the indoor unit fan is controlled to run at a preset rotation speed.
The air conditioner according to any one of claims 1-7, wherein the outdoor unit further comprises: an outdoor unit controller and a compressor, and the indoor unit further comprises: an indoor unit coil, an indoor unit coil temperature Sensor and indoor ambient temperature sensor; the indoor unit controller is also used for:

When the air conditioner is in the cooling process of the clean state and meets the stop condition, the compressor is controlled to stop working, wherein the stop condition is that the temperature measured by the indoor unit coil temperature sensor is less than or equal to the first The cooling temperature and duration are greater than the first cooling time, or the temperature measured by the indoor ambient temperature sensor is less than or equal to the second cooling temperature and the duration is greater than the first cooling time, or the cooling process in the clean state The duration is greater than the second refrigeration time, and the second refrigeration time is greater than the first refrigeration time.
An air conditioner cleaning method applied to the air conditioner according to any one of claims 1-8, wherein the air conditioner cleaning method comprises:

When the air conditioner receives a drying instruction, controlling the air conditioner to enter a dry state according to the drying instruction and the operating state of the air conditioner;

Controlling the heating process in which the air conditioner enters the dry state;

or,

When the air conditioner receives a cleaning instruction, controlling the air conditioner to enter a cleaning state;

Controlling the air conditioner to enter the refrigeration process of the clean state;

After the air conditioner ends the cooling process in the clean state, controlling the air conditioner to enter the heating process in the clean state;

After the air conditioner enters the heating process in the dry state for a third time, or after the air conditioner enters the heating process in the clean state, the indoor unit fan is controlled to run at a preset speed.
The method according to claim 9, wherein when the air conditioner receives a drying instruction, controlling the air conditioner to enter the drying state according to the drying instruction and the operating state of the air conditioner comprises:

The air conditioner enters the standby state after the continuous operation time in the cooling or dehumidifying state is greater than the sixth time, and the drying instruction is received before the air conditioner enters the standby state, and the air conditioner is controlled to enter the dry state.
The method according to claim 9, wherein when the air conditioner receives a cleaning instruction, controlling the air conditioner to enter a cleaning state comprises:

When the air conditioner is in the standby state, the cleaning instruction is received and the temperature measured by the outdoor environment temperature sensor is not lower than the first temperature, the air conditioner is controlled to enter the cleaning state.
The method according to claim 9, wherein the method further comprises:

After the air conditioner enters the cooling process in the clean state, the indoor unit fan is controlled to run at a preset speed.
The method according to claim 12, wherein after the air conditioner enters the cooling process in the clean state, controlling the indoor unit fan to run at a preset speed comprises:

Controlling the indoor unit fan to run at a preset speed after the air conditioner enters the cooling process in the clean state for a third time;

Or, after the air conditioner enters the cooling process in the clean state, controlling the indoor unit fan to run at a preset speed for a fourth time;

Alternatively, after the air conditioner enters the cooling process in the clean state, the indoor unit fan is controlled to continue to run at a preset rotation speed.
The method according to claim 9, wherein the method further comprises:

After the air conditioner enters the cooling process in the clean state, the outdoor unit controller is instructed to control the frequency of the compressor according to the temperature measured by the indoor environment temperature sensor.
The method according to claim 9, wherein the method further comprises:

After the air conditioner finishes the cooling process in the clean state, the indoor unit fan is controlled to run at a preset rotation speed.
The method according to any one of claims 9-15, wherein the method further comprises:

When the air conditioner is in the cooling process of the clean state and meets the stop condition, the compressor is controlled to stop working, where the stop condition is that the temperature measured by the indoor unit coil temperature sensor is less than or equal to the first cooling temperature and continues The time is greater than the first cooling time, or the temperature measured by the indoor ambient temperature sensor is less than or equal to the second cooling temperature and the duration is greater than the first cooling time, or the duration of the cooling process in the clean state is greater than the second cooling Time, the second refrigeration time is greater than the first refrigeration time.
A computer-readable storage medium storing one or more programs, wherein the one or more programs comprise instructions, which when executed by a computer cause the computer to execute any one of claims 9-16 The air conditioner cleaning method described in item.
A computer program product containing instructions, characterized in that, when the instructions are run on a computer, the computer is caused to execute the air conditioner cleaning method according to any one of claims 9-16.
An air conditioner cleaning device, comprising: a processor and a memory, the memory is used to store programs, and the processor calls the programs stored in the memory to execute the air conditioner cleaning method according to any one of claims 9-16.