WO2020187226A1

WO2020187226A1 - Air conditioner self-cleaning control method and air conditioner

Info

Publication number: WO2020187226A1
Application number: PCT/CN2020/079900
Authority: WO
Inventors: 于洋
Original assignee: 青岛海尔空调器有限总公司; 海尔智家股份有限公司
Priority date: 2019-03-21
Filing date: 2020-03-18
Publication date: 2020-09-24
Also published as: CN109916033A

Abstract

Provided are an air conditioner self-cleaning control method and an air conditioner; the self-cleaning control method comprises the following steps: obtaining the electric current value of a fan of an indoor unit; if the electric current value is less than a set current value, then obtaining the PM2.5 value of the indoor air in the period of time from the completion of the previous self-cleaning of the air conditioner to the current time; according to the PM2.5 value of the indoor air, determining whether to run the self-cleaning mode.

Description

Air conditioner self-cleaning control method and air conditioner

Technical field

The invention belongs to the technical field of air conditioners, and specifically provides a self-cleaning control method for an air conditioner and an air conditioner.

Background technique

Air conditioners are equipment that can cool/heat indoors. As time goes by, the dust on the indoor unit and outdoor unit of the air conditioner will gradually increase. When the dust accumulates to a certain extent, a large number of bacteria will breed, especially indoors. When the air flows through the indoor unit, it will carry a lot of dust and bacteria, so it is necessary to clean the air conditioner in time.

In the prior art, the cleaning methods of the air conditioner include manual cleaning and self-cleaning of the air conditioner. Manual cleaning is time-consuming and laborious. It is necessary to disassemble the parts of the air conditioner before cleaning. After the cleaning is completed, the parts need to be renewed. Assembled. Therefore, many current air conditioners have adopted the self-cleaning method. However, due to the actual installation location, actual operating state and indoor environment of the air conditioner, the air conditioner cannot automatically determine when to turn on the self-cleaning control, but requires the user Judge yourself whether to run the self-cleaning mode of the air conditioner, which will lead to: If the self-cleaning mode is frequently turned on, although the cleanliness of the air conditioner can be guaranteed, it will cause a waste of energy. If the self-cleaning mode is turned on for a long time Mode, it is difficult to ensure the cleanliness of the air conditioner, and may affect the normal use of the air conditioner, and at the same time affect human health.

Therefore, a new air conditioner self-cleaning control method is proposed in the art to solve the above-mentioned problems.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, that is, to more accurately determine when the air conditioner turns on the self-cleaning mode, the present invention provides a self-cleaning control method for an air conditioner. The self-cleaning control method includes the following steps: S110. Obtain the current value of the fan of the indoor unit at the current speed; S120. When the current value is less than the set current value, obtain the air conditioner from the last self-cleaning to the current time period. PM2.5 value; S130, judging whether to run the self-cleaning mode according to the PM2.5 value of the indoor air.

In the preferred embodiment of the above air conditioner self-cleaning control method, in step S120, the PM2.5 value of the indoor air in the current time period from the completion of the last self-cleaning of the air conditioner is the total amount of air in this time period. PM2.5 value.

In the preferred embodiment of the air conditioner self-cleaning control method, step S130 specifically includes: when there is a PM2.5 value exceeding a preset value, making the air conditioner operate in a self-cleaning mode; otherwise, not operating in the self-cleaning mode.

In the preferred embodiment of the above air conditioner self-cleaning control method, in step S120, the PM2.5 value of the indoor air in the current time period from the completion of the last self-cleaning of the air conditioner is the average value of the air in this time period PM2.5 value.

In the preferred embodiment of the above air conditioner self-cleaning control method, step S130 specifically includes: when the average PM2.5 value exceeds a preset value, making the air conditioner execute the self-cleaning mode; otherwise, not running the self-cleaning mode .

In the preferred embodiment of the air conditioner self-cleaning control method described above, in step S120, the step of "acquiring all the PM2.5 values of the indoor air of the air conditioner from the last self-cleaning to the current time period" specifically includes: Acquire the pre-stored indoor air PM2.5 value; wherein the pre-stored indoor air PM2.5 value is the PM2.5 value of the indoor air detected by the PM2.5 sensor.

In the preferred embodiment of the air conditioner self-cleaning control method described above, in step S120, the step of "acquiring all the PM2.5 values of the indoor air of the air conditioner from the last self-cleaning to the current time period" specifically includes: Acquire the pre-stored indoor air PM2.5 value; wherein the pre-stored indoor air PM2.5 value is obtained by obtaining local weather information from the indoor air PM2.5 value.

In the preferred embodiment of the above air conditioner self-cleaning control method, in step S120, the step of “obtaining the average PM2.5 value of the indoor air of the air conditioner from the last self-cleaning completion to the current time period” specifically includes: Acquire the PM2.5 value of all indoor air stored in advance; calculate the average value of the acquired PM2.5 value of the indoor air; wherein, the PM2.5 value of the indoor air stored in advance is detected by the PM2.5 sensor The PM2.5 value of indoor air.

In the preferred embodiment of the air conditioner self-cleaning control method described above, in step S120, the step of “obtaining the average PM2.5 value of the indoor air from the last time the air conditioner was completed to the current time period” is specifically Including: obtaining the pre-stored PM2.5 value of all indoor air; calculating the average value of the obtained indoor air PM2.5 value; wherein, the pre-stored indoor air PM2.5 value is obtained by obtaining the local The weather information is the PM2.5 value of indoor air obtained from the weather information.

The present invention also provides an air conditioner including a controller, characterized in that the controller is configured to be able to execute the above-mentioned air conditioner self-cleaning control method.

Since it is not scientific to use fan current alone as the basis for self-cleaning judgment, sometimes it will cause misjudgment due to condensation or the motor itself, and frequent self-cleaning. Whether the indoor heat exchanger is dirty or blocked or how long it will be dirty has a lot to do with the indoor air quality (PM2.5 value). When the air quality is poor, the indoor heat exchanger gets dirty quickly; When it is better, the indoor heat exchanger gets dirty slowly. Therefore, in order to more accurately determine the time when the air conditioner turns on the self-cleaning mode, the present invention performs a comprehensive judgment based on the fan current and air quality. In this way, the air quality factor is considered on the basis of the fan current, and the double judgment standard is used to determine whether the air conditioner needs to run self-cleaning, thereby reducing the misjudgment of whether the air conditioner is running self-cleaning or not, and improving the user experience .

Description of the drawings

Fig. 1 is a main flow chart of the air conditioner self-cleaning control method of the present invention.

detailed description

In order to make the embodiments, technical solutions and advantages of the present invention more obvious, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Examples. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

The self-cleaning of the air conditioner refers to cleaning the indoor heat exchanger of the indoor unit. As shown in Figure 1, the air conditioner self-cleaning control method of the present invention includes the following steps: S110, acquiring the current value of the fan of the indoor unit at the current speed; S120, acquiring the air conditioner from the current value when the current value is less than the set current value The PM2.5 value of the indoor air from the completion of the last self-cleaning to the current time period; S130: Determine whether to run the self-cleaning mode according to the PM2.5 value of the indoor air. PM2.5 represents the content of fine particles per cubic meter of air. For example, the PM2.5 concentration index of 10 micrograms/m3 is 10, and the PM2.5 value of the present invention is the PM2.5 concentration index. Those skilled in the art can understand that if the fan current alone is used as the basis for self-cleaning judgment, it is unscientific. Sometimes it may cause misjudgment due to condensation or the motor itself and frequent self-cleaning. In addition, whether the indoor heat exchanger is dirty or blocked or how long it will be dirty has a lot to do with the indoor air quality (PM2.5 value). When the air quality is poor, the indoor heat exchanger gets dirty quickly; When the quality is better, the indoor heat exchanger gets dirty slowly. Therefore, in order to more accurately determine the time when the air conditioner turns on the self-cleaning mode, the present invention performs a comprehensive judgment based on the fan current and air quality.

Specifically, those skilled in the art can understand that in step S120, the set current value can be selected by a reasonable value by those skilled in the art according to actual conditions. For example, the standard current value of the fan at different speeds of the indoor heat exchanger in the case of no dirty blockage is obtained through the test method. When the real-time current value at a certain speed is lower than the standard current value at that speed, it is indicated The indoor heat exchanger began to appear dirty and clogged. As the real-time current value gradually decreases, the dirty clogging of the indoor heat exchanger becomes more and more serious. Those skilled in the art can choose a reasonable setting according to different test scenarios and different needs. Current value (the set current value at the same speed ≤ the standard current value at the same speed). When the current value of the fan at the current speed is lower than the set current value, the PM2.5 value of the indoor air of the air conditioner from the completion of the last self-cleaning to the current time period is obtained.

As an example, the PM2.5 value of the indoor air in the current time period from the completion of the last self-cleaning of the air conditioner is all the PM2.5 values of the air in this time period. Then it is judged whether any of these PM2.5 values exceeds the preset value, if so, it is judged that the indoor heat exchanger is dirty and blocked, and the air conditioner is operated in the self-cleaning mode; otherwise, the self-cleaning mode is not operated. The preset value can be flexibly selected by those skilled in the art according to the actual application scenario of the air conditioner. For example, the preset value can be set to any value between 120-150.

In this embodiment, all the PM2.5 values of the indoor air from the last self-cleaning to the current time period of the air conditioner can be directly obtained from the pre-stored indoor air PM2.5 values. Among them, the pre-stored indoor air PM2.5 value can be the PM2.5 value of indoor air detected by the PM2.5 sensor that comes with the air conditioner; it can also be obtained by obtaining local weather information, and then from the weather information The PM2.5 value of the obtained indoor air.

As another example, the PM2.5 value of the indoor air in the current time period from the completion of the last self-cleaning of the air conditioner is the average PM2.5 value of the air in this time period. Then determine whether the average PM2.5 value exceeds the preset value. If the average PM2.5 value exceeds the preset value, it is determined that the indoor heat exchanger is dirty and blocked. At this time, the air conditioner is operated in self-cleaning mode; otherwise, the self-cleaning mode is not operated. mode.

In this embodiment, the step of obtaining the average PM2.5 value of indoor air from the last self-cleaning to the current time period of the air conditioner may be: obtaining the PM2.5 value of all indoor air stored in advance, and then Calculate the average value of the PM2.5 value of the acquired indoor air. Among them, the pre-stored indoor air PM2.5 value can be the PM2.5 value of indoor air detected by the PM2.5 sensor that comes with the air conditioner; it can also be obtained by obtaining local weather information, and then from the weather information The PM2.5 value of the obtained indoor air.

The present invention also provides an air conditioner including a controller configured to perform the above-mentioned air conditioner self-cleaning control method.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, those skilled in the art will readily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

A self-cleaning control method of an air conditioner, the air conditioner including an indoor unit, characterized in that the self-cleaning control method of the air conditioner includes the following steps:

S110. Obtain the current value of the fan of the indoor unit at the current speed;

S120. When the current value is less than the set current value, obtain the PM2.5 value of the indoor air in the current time period from the completion of the last self-cleaning of the air conditioner;

S130: Determine whether to run the self-cleaning mode according to the PM2.5 value of the indoor air.
The air conditioner self-cleaning control method according to claim 1, characterized in that, in step S120, the PM2.5 value of the indoor air in the current time period from the completion of the last self-cleaning of the air conditioner is this time period All PM2.5 values of the inner air.
The self-cleaning control method of an air conditioner according to claim 2, wherein step S130 specifically includes:

When there is a PM2.5 value exceeding the preset value, the air conditioner is operated in the self-cleaning mode; otherwise, the self-cleaning mode is not operated.
The air conditioner self-cleaning control method according to claim 1, characterized in that, in step S120, the PM2.5 value of the indoor air in the current time period from the completion of the last self-cleaning of the air conditioner is this time period The average PM2.5 value of the air inside.
The self-cleaning control method of an air conditioner according to claim 4, wherein step S130 specifically includes:

When the average PM2.5 value exceeds the preset value, the air conditioner is operated in the self-cleaning mode; otherwise, the self-cleaning mode is not operated.
The air conditioner self-cleaning control method according to claim 2, characterized in that, in step S120, “acquire all PM2.5 values of indoor air of the air conditioner from the last self-cleaning completion to the current time period” The specific steps include:

Obtain the pre-stored PM2.5 value of indoor air;

Among them, the pre-stored indoor air PM2.5 value is the indoor air PM2.5 value detected by the PM2.5 sensor.
The air conditioner self-cleaning control method according to claim 4, characterized in that, in step S120, “acquire all PM2.5 values of indoor air of the air conditioner from the last self-cleaning completion to the current time period” The specific steps include:

Obtain the pre-stored PM2.5 value of indoor air;

Wherein, the pre-stored indoor air PM2.5 value is a PM2.5 value of indoor air acquired from the weather information by acquiring local weather information.
The air conditioner self-cleaning control method according to claim 4, characterized in that, in step S120, “acquire the average PM2.5 value of the indoor air in the current time period from the completion of the last self-cleaning of the air conditioner” The specific steps include:

Get all the pre-stored PM2.5 values of indoor air;

Calculate the average value of the acquired PM2.5 value of the indoor air;

Among them, the pre-stored indoor air PM2.5 value is the indoor air PM2.5 value detected by the PM2.5 sensor.
The air conditioner self-cleaning control method according to claim 4, characterized in that, in step S120, “acquire the average PM2.5 value of the indoor air in the current time period from the completion of the last self-cleaning of the air conditioner” The specific steps include:

Get all the pre-stored PM2.5 values of indoor air;

Calculate the average value of the acquired PM2.5 value of the indoor air;

Wherein, the pre-stored indoor air PM2.5 value is a PM2.5 value of indoor air acquired from the weather information by acquiring local weather information.
An air conditioner, comprising a controller, characterized in that the controller is configured to execute the air conditioner self-cleaning control method according to any one of claims 1 to 9.