WO2019242530A1

WO2019242530A1 - Control method for air conditioner, and air conditioner

Info

Publication number: WO2019242530A1
Application number: PCT/CN2019/090707
Authority: WO
Inventors: 吕静静; 王永涛; 魏学帅; 王鹏臣; 张飞; 尹晓英
Original assignee: 青岛海尔空调器有限总公司
Priority date: 2018-06-21
Filing date: 2019-06-11
Publication date: 2019-12-26
Also published as: CN110631222A

Abstract

The present invention relates to the technical field of air conditioners, and aims at resolving an existing problem that a user cannot accurately determine when an air conditioner needs to be cleaned when the air conditioner is manually cleaned, so that the air conditioner cannot be cleaned in a timely manner, and the problem that the air conditioner is cleaned by means of self-cleaning, so that the air conditioner determines incorrectly and frequently performs self-cleaning. Therefore, the present invention provides a control method for an air conditioner and an air conditioner. The air conditioner comprises an indoor unit. The control method comprises: obtaining a fan current value of the indoor unit when a guide plate is located at a set position; and according to the fan current value, selectively prompting that the air conditioner needs to be cleaned. The present invention can accurately determine whether the air conditioner needs to be cleaned, thereby prompting the user to clean the air conditioner in a timely manner, avoiding the cases that the air conditioner is dirty and obstructed, and is incorrectly determined, and improving user experience.

Description

Control method for air conditioner and air conditioner

Technical field

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

Background technique

The air conditioner is a device capable of cooling / heating the room. As time goes by, the ash accumulation on the indoor and outdoor units of the air conditioner will gradually increase. After the ash accumulation has accumulated to a certain extent, a large number of bacteria will grow, especially indoors. When the air flows through the indoor unit, it will carry a lot of dust and bacteria, so the air conditioner needs to be cleaned in time.

At present, the cleaning of an air conditioner generally requires manual cleaning or a self-cleaning device activated by pressing a button. However, because the user cannot accurately determine when the air conditioner needs to be cleaned, the air conditioner cannot be cleaned in a timely manner, thereby affecting the user. Experience. Some current air conditioners also adopt a self-cleaning method. For example, a patent disclosed in CN107525209A discloses a self-cleaning control method for an air conditioner. Specifically, the control method includes detecting a current operating mode of the air conditioner. The current operating mode is a non-cooling mode, and the air conditioner is adjusted to a cooling mode; the speed of the motor of the indoor unit fan of the air conditioner and the first current value of the motor at the speed are detected; and the first current value of the motor at the speed and the The first preset current value at the rotation speed is compared. If the first current value is less than or equal to the first preset current value, the self-cleaning mode of the air conditioner is turned on, and the self-cleaning process of the indoor unit heat exchanger is performed. That is, in the above patent, the fan current of the indoor unit is used to determine whether to perform self-cleaning of the indoor unit. However, the position of the guide plate of the indoor unit will affect the fan current of the indoor unit. The smaller the opening angle of the guide plate, the indoor The smaller the air output of the unit, the larger the load of the fan, and accordingly, the smaller the fan current. Therefore, if it is judged by the single condition of the fan current of the indoor unit, it cannot be determined whether the current drop of the indoor unit is due to the position of the air conditioner guide plate It is still due to the ash formation of the air conditioner. If the air conditioner only reduces the fan current of the indoor unit due to the opening angle of the guide plate of the indoor unit being reduced, it may happen that the indoor unit will still be The indoor unit performs self-cleaning, which will cause energy waste.

Therefore, there is a need in the art for a control method for an air conditioner and a corresponding air conditioner to solve the above problems.

Summary of the Invention

In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that manual cleaning of the existing air conditioner cannot enable the user to accurately determine when the air conditioner needs to be cleaned, so that the air conditioner cannot be cleaned in time, and the air conditioner is The cleaning method is easy to cause the air conditioner to misjudge and frequently perform self-cleaning. The present invention provides a control method for an air conditioner. The air conditioner includes an indoor unit. The control method includes: The fan current value of the indoor unit; according to the fan current value, selectively reminding the air conditioner that it needs to be cleaned.

In a preferred technical solution of the above control method, the step of "optionally prompting the air conditioner to be cleaned according to the fan current value and the standard current value" specifically includes: changing the change value of the fan current value with respect to the standard current value and presetting Value comparison; based on the comparison results, it is selectively prompted that the air conditioner needs to be cleaned.

In a preferred technical solution of the above control method, the step of “optionally prompting the air conditioner to be cleaned according to the comparison result” includes: if the change value is greater than a preset value, prompting the air conditioner to be cleaned.

In a preferred technical solution of the above control method, the step of "optionally prompting the air conditioner to be cleaned according to the comparison result" further includes: if the change value is not greater than a preset value, not prompting the air conditioner to be cleaned.

In a preferred technical solution of the above control method, the step of "indicating that the air conditioner needs to be cleaned" includes: changing an indicator light on the indoor unit to a warning color.

In a preferred technical solution of the above control method, the warning color is red.

In a preferred technical solution of the above control method, the change value is equal to the difference between the standard current value and the fan current value.

In a preferred technical solution of the above control method, the standard current value is a fan current value of the indoor unit when the air conditioner is completely clean and the guide plate is at a set position.

In a preferred technical solution of the above control method, the set position is a default position where the guide plate is located when the indoor unit is initially powered on.

In another aspect, the present invention also provides an air conditioner including a controller configured to be capable of performing the above-mentioned control method.

Those skilled in the art can understand that in the preferred technical solution of the present invention, the fan current value of the indoor unit when the guide plate is at the set position is first obtained, and then the obtained fan current value of the indoor unit is compared with the standard current value. The change value is compared with a preset value, and the air conditioner is selectively prompted to be cleaned according to the comparison result. If the change value is greater than the preset value, the air conditioner needs to be cleaned. If the change value is not greater than the preset value, no prompt is given. The air conditioner needs to be cleaned. Through such a control method, the user can accurately determine whether the air conditioner needs to be cleaned. Compared with the method of manually cleaning the air conditioner in the prior art, when the air conditioner needs to be cleaned in the present invention, the user can immediately prompt the user about the air conditioner. Perform cleaning so that the air conditioner can be cleaned in a timely manner and improve the user experience. In addition, compared with the self-cleaning method of the air conditioner in the prior art, by turning the guide plate to a set position (the set position may be the position of the guide plate when setting a standard current value), the air conditioner can be avoided. Due to the small opening angle of the guide plate of the indoor unit, it is misjudged that the air conditioner is ashing and frequent self-cleaning mode leads to waste of energy. Therefore, it is possible to more accurately determine when the air conditioner needs to be cleaned, that is, at the most appropriate time. Time to self-clean the air conditioner and improve user experience.

Further, the standard current value is the fan current value of the indoor unit when the air conditioner is completely clean and the guide plate is in the set position. When the air conditioner is completely clean, selecting the standard current value at this time can better feedback the air conditioner. The degree of ash during use, that is, the air conditioner is always compared with the fan current parameters in a completely clean state during use. Based on eliminating the influence of the position of the guide plate on the fan current, the air conditioner can be more accurately fed back. The degree of ash formation can prompt the user to clean the air conditioner when the ash formation is serious. When the ash is not formed and the ash formation level is within an acceptable range, the user can be temporarily not prompted to clean the air conditioner.

Further, the setting position of the guide plate is set to the default position of the guide plate when the indoor unit is powered on, that is, after the indoor unit is powered on, the guide plate has an initial default position, and the default position of the guide plate at this time is set to the setting of the guide plate. Position, so there is no need to set the guide plate position separately.

Furthermore, the way of prompting the air conditioner to be cleaned is to change the indicator light on the indoor unit to red, so that the user can more intuitively observe that the air conditioner needs to be cleaned, so that the user can manually clean the air conditioner or turn on the air conditioner in time. The self-cleaning mode of the air conditioner prevents serious blockage of the air conditioner due to untimely cleaning, thereby affecting the normal experience of the user.

In addition, the air conditioner further provided by the present invention on the basis of the above technical solution adopts the above-mentioned control method, and therefore has the technical effects of the above-mentioned control method. Compared with the existing air conditioner, the air conditioner of the present invention When cleaning is required, the user can be prompted to clean the air conditioner, so that the air conditioner can be cleaned in time, and the user experience is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a flowchart of a control method of the present invention;

2 is a flowchart of an embodiment of a control method according to the present invention;

FIG. 3 is a schematic structural block diagram of an air conditioner according to an embodiment of the present invention.

detailed description

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention.

The existing air conditioner 10 using manual cleaning based on the background art cannot enable the user to accurately determine when the air conditioner 10 needs to be cleaned, so that the air conditioner 10 cannot be cleaned in a timely manner, and the air conditioner 10 is self-cleaning and easy to use. The air conditioner 10 has a problem of misjudgment and frequently performs self-cleaning. The invention provides a control method for the air conditioner 10 and the air conditioner 10, which aims to enable the air conditioner 10 to prompt the user to clean the air conditioner 10 when cleaning is needed, so that the air conditioner 10 can be cleaned in time. To improve user experience.

Specifically, referring to FIG. 3, the air conditioner 10 of the present invention includes an indoor unit 20. As shown in FIG. 1, the control method of the present invention includes: Step S102, obtaining a fan current value of the indoor unit 20 when the guide plate 50 is at a set position; In step S104, the air conditioner 10 is selectively prompted to be cleaned according to the fan current value. It should be noted that the magnitude of the fan current of the indoor unit 20 can directly reflect the degree of ash formation of the air conditioner 10, because the load of the fan 40 is determined when the position of the guide plate 50 is fixed. The load of 40 is increased, and the current of the fan is reduced accordingly. At this time, the wind resistance of the fan 40 is increased, that is, the ash is formed on the indoor unit 20, and the more serious the ash is, the smaller the fan current is. The size can sufficiently determine the degree of ash formation of the indoor unit 20 of the air conditioner 10.

Preferably, the step of "obtaining the fan current value of the indoor unit 20 when the guide plate 50 is at a set position" includes: when the indoor unit 20 is initially powered on, the guide plate 50 is at a default position, and the fan current value of the indoor unit 20 is obtained at this time. That is, when the indoor unit 20 is initially powered on, the guide plate 50 will have an initial default position, and when the guide plate 50 reaches the default position, the fan current of the indoor unit 20 is detected. Of course, as an alternative, the step of “obtaining the fan current value of the indoor unit 20 when the guide plate 50 is at the set position” may further include: placing the guide plate 50 at the set position to obtain the fan current value of the indoor unit 20 at this time, That is, the position of the guide plate 50 is detected first, and then the fan current of the indoor unit 20 is detected after the guide plate 50 is adjusted to the set position; or, the step of "obtaining the fan current value of the indoor unit 20 when the guide plate 50 is at the set position" It may also include: obtaining the fan current value of the indoor unit 20 when the guide plate 50 reaches the set position, that is, there is no need to actively adjust the position of the guide plate 50 before detecting the fan current of the indoor unit 20, and only wait for the guide plate 50 to reach the set position The fan current of the indoor unit 20 can be detected at that time. Those skilled in the art can flexibly set the specific position of the guide plate 50 when detecting the fan current and whether the guide plate 50 needs to be adjusted to the set position before detecting the fan current. For example, when detecting the fan current, the guide plate 50 may be at the default guide plate position when the indoor unit 20 is initially powered on, or at the position where the opening angle of the guide plate 50 is the largest, or other When the guide plate 50 reaches the set position, the controller 30 of the air conditioner 10 can be triggered to detect and obtain the fan current of the indoor unit 20, or the guide plate 50 is adjusted to the set position before detecting the fan current of the indoor unit 20. As long as the fan current value of the indoor unit 20 can be obtained when the guide plate 50 is at the set position, the specific position of the guide plate 50 when sampling the fan current value of the indoor unit 20 and whether the guide plate 50 needs to be actively adjusted before sampling. The adjustment and change of the setting position do not deviate from the principle and scope of the present invention, and should be limited to the protection scope of the present invention. The technical solution of the present invention is described in detail below with reference to specific embodiments.

Preferably, as shown in FIG. 2, the step of “selectively prompting the air conditioner 10 to be cleaned according to the current value of the fan” specifically includes: Step S204, determining whether the change value of the current value of the fan relative to the standard current value is greater than a preset value value. That is, the change value of the fan current value relative to the standard current value is compared with a preset value; according to the comparison result, the air conditioner 10 is selectively prompted to be cleaned. Further, the step of “selectively prompting the air conditioner 10 to be cleaned according to the comparison result” includes: if the change value is greater than a preset value, prompting the air conditioner 10 to be cleaned (step S206); if the change value is not greater than the preset value If the value is set, the air conditioner 10 is not prompted to be cleaned (step S208). Specifically, the above-mentioned change value is equal to the difference ΔI between the standard current value Ib and the fan current value If. That is, if the difference ΔI between the standard current value Ib and the fan current value If is greater than a preset value, it is prompted that the air conditioner 10 needs to be cleaned. If the difference △ I between the standard current value Ib and the fan current value If is not greater than the preset value Value, it does not indicate that the air conditioner 10 needs to be cleaned. In a possible embodiment, the preset value is set to 0.1A, that is, if △ I> 0.1A, it means that the dirty blockage of the indoor unit 20 is serious at this time, and the user needs to be prompted to clean the air conditioner 10, if △ If I≤0.1A, it means that there is no dirty blockage of the indoor unit 20 or the dirty blockage of the indoor unit 20 is still within an acceptable range. At this time, the user may not be prompted to clean the air conditioner 10 temporarily. Of course, the preset value is not limited to the above-mentioned example 0.1A. Those skilled in the art can flexibly set the specific value of the preset value in practical applications, as long as the cut-off point determined by the preset value can determine whether the air conditioner 10 needs to be cleaned. Just fine.

In addition, it should be noted that the above-mentioned standard current value can be measured before the air conditioner 10 leaves the factory, that is, when the air conditioner 10 is in a completely clean state, the standard current value of the indoor unit 20 is measured when the guide plate 50 is in the set position. In addition, the standard current value can also be measured after the air conditioner 10 leaves the factory. That is, during the use of the air conditioner 10, when the guide plate 50 obtained in a preset time is at a set position, it appears in multiple fan current values of the indoor unit 20. The highest frequency current value is used as the standard current value. By calculating and sorting the frequency of occurrence of multiple fan current values, the highest frequency fan current value is selected as the standard current value. Among them, the sampling data of the fan current value can be 1,000. , 2000 or other numbers, those skilled in the art can flexibly set the sampling number of fan current values in practical applications. The preset time can be one day, one week, one month, or other set time value, as long as a plurality of fan current values obtained from the preset time can select a standard current value, which is specific to the preset time The adjustment and change of the values do not deviate from the principle and scope of the present invention, and should be limited to the protection scope of the present invention.

Further preferably, the step of “indicating that the air conditioner 10 needs to be cleaned” includes: changing the indicator light 60 on the indoor unit 20 to a warning color, wherein the indicator light 60 on the indoor unit 20 can be changed to red or yellow to Prompts the user that the air conditioner 10 needs to be cleaned. Those skilled in the art can flexibly set the specific color of the indicator 60 in practical applications, as long as the selection of the color can prompt the user to clean the air conditioner 10, of course. In actual applications, a sound device (such as a buzzer, a voice announcer, etc.) on the indoor unit 20 can also be used to prompt the user that the air conditioner 10 needs to be cleaned, or a combination of the indicator light 60 and the sound device The user is reminded that the air conditioner 10 needs to be cleaned. Those skilled in the art can flexibly set the specific prompting method for the user to clean the air conditioner 10 in practical applications. Such adjustments and changes to the prompting method do not deviate from the principle of the present invention. And the scope should be limited within the protection scope of the present invention.

In addition, the air conditioner 10 of the present invention further includes a controller 30 configured to be able to execute the above-mentioned control method. That is, the controller 30 can help the user accurately determine whether the air conditioner 10 needs to be cleaned, and can prompt the user when the air conditioner 10 needs to be cleaned, so that the air conditioner 10 can be cleaned in time.

It should be noted that when the user is prompted that the air conditioner 10 needs to be cleaned, the indoor unit 20 of the air conditioner 10 can be cleaned separately, and the indoor unit 20 and the outdoor unit of the air conditioner 10 can be cleaned simultaneously because the indoor unit 20 appears It can also indirectly feedback the outdoor unit to a certain extent when the dirty blockage has reached the time when the dirty blockage occurs. In addition, in the present invention, the specific cleaning method for the air conditioner 10 may be manual cleaning, or it may be a self-cleaning device that starts the air conditioner 10 for cleaning.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the accompanying drawings. However, those skilled in the art can easily 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 replacements to related technical features, and the technical solutions after these changes or replacements will fall within the protection scope of the present invention.

Claims

A control method for an air conditioner, the air conditioner includes an indoor unit, wherein the control method includes:

Obtaining the fan current value of the indoor unit when the guide plate is at a set position;

Selectively prompting the air conditioner to be cleaned according to the fan current value.
The control method according to claim 1, wherein the step of "selectively prompting the air conditioner to be cleaned according to the current value of the fan" specifically includes:

Comparing a change value of the fan current value with respect to a standard current value with a preset value;

According to the comparison result, the air conditioner is selectively prompted to be cleaned.
The control method according to claim 2, wherein the step "selectively prompting said air conditioner to be cleaned according to a comparison result" includes:

If the change value is greater than the preset value, it is prompted that the air conditioner needs to be cleaned.
The control method according to claim 3, wherein the step of "optionally prompting said air conditioner to be cleaned according to a comparison result" further comprises:

If the change value is not greater than the preset value, the air conditioner is not prompted to be cleaned.
The control method according to claim 3, wherein the step of "prompting the air conditioner to be cleaned" includes:

Changing the indicator light on the indoor unit to a warning color.
The control method according to claim 5, wherein the warning color is red.
The control method according to claim 2, wherein the change value is equal to a difference between the standard current value and the fan current value.
The control method according to claim 2, wherein the standard current value is a fan current value of the indoor unit when the air conditioner is in a completely clean state and the guide plate is at the set position.
The control method according to any one of claims 1 to 8, wherein the set position is a default position where the guide plate is located when the indoor unit is initially powered on.
An air conditioner including a controller, wherein the controller is configured to be capable of performing the control method according to any one of claims 1 to 9.