WO2023071246A1

WO2023071246A1 - Control method for air conditioner

Info

Publication number: WO2023071246A1
Application number: PCT/CN2022/101101
Authority: WO
Inventors: 刘志萌; 宋龙; 张永刚
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2021-10-29
Filing date: 2022-06-24
Publication date: 2023-05-04
Also published as: CN114061084A; CN114061084B

Abstract

A control method for an air conditioner, aiming at solving the problem in the prior art that when the humidity of an indoor space is high, a large number of bacteria are bred after the air conditioner runs for a long time. The control method comprises: obtaining a first relative humidity of an indoor space; if the first relative humidity is larger than a first preset value, obtaining a working state of an air conditioner; and selectively controlling, on the basis of the working state of the air conditioner, an ozone device (4) to be started. The ozone device (4) is selectively controlled to be started according to the working state of the air conditioner, and ozone released by the ozone device (4) is used for removing bacteria in the indoor space, so that the air quality of the indoor space can be improved more effectively, and the user experience is improved.

Description

How to control the air conditioner

technical field

The invention relates to the technical field of air conditioners, and specifically provides a method for displaying functions of an air conditioner.

Background technique

Along with the raising of people's living standard, the application of air conditioner is more and more general. The air in the indoor space enters the interior of the air conditioner, and after heating, cooling, dehumidification and other treatments, it returns to the indoor space, so as to achieve the purpose of adjusting the air condition of the indoor space.

However, after the air conditioner has been running for a long time, bacteria will grow inside the air conditioner, especially when the humidity in the indoor space is high, a large number of bacteria will grow inside the air conditioner. When the air flows through the inside of the housing of the indoor unit of the air conditioner, bacteria will be carried to the indoor space, resulting in a decrease in air quality in the indoor space, and in severe cases, endangering people's health and poor user experience.

Correspondingly, a new technical solution is needed in the art to solve the above problems.

Contents of the invention

The present invention aims to solve one of the above-mentioned technical problems, that is, to solve the problem in the prior art that when the humidity of the indoor space is high, a large number of bacteria will grow after the air conditioner has been running for a long time.

The present invention provides a method for controlling an air conditioner, the air conditioner includes an air conditioner indoor unit, the air conditioner indoor unit includes a housing, a heat exchanger and a cross-flow fan arranged inside the housing, and the housing also includes An ozone device is provided, and the ozone device is arranged between the heat exchanger and the cross-flow fan, and the control method includes: obtaining a first relative humidity of the indoor space; if the first relative humidity is greater than the first preset value, the working state of the air conditioner is obtained; based on the working state of the air conditioner, the ozone device is selectively controlled to be turned on.

In the preferred technical solution of the above control method, the step of "selectively controlling the opening of the ozone device based on the working state of the air conditioner" specifically includes: if the air conditioner is in the working state, controlling the ozone device to open.

In a preferred technical solution of the above control method, the control method further includes: after controlling the ozone device to be turned on for a first preset time period, controlling the ozone device to be turned off.

In the preferred technical solution of the above control method, the step of "selectively controlling the opening of the ozone device based on the working state of the air conditioner" specifically includes: if the air conditioner is in a non-working state, sending "whether to open The prompt information of "ozone device"; according to the received feedback information, selectively control the opening of the ozone device.

In the preferred technical solution of the above control method, the step of "selectively turning on the ozone device according to the received feedback information" specifically includes: if the received feedback information is "yes", then controlling the ozone device to turn on .

In a preferred technical solution of the above control method, the control method further includes: at the same time as or after "controlling the ozone device to be turned on", controlling the reverse rotation of the cross-flow fan.

In a preferred technical solution of the above control method, the control method further includes: controlling the cross-flow fan to operate in a silent mode while or after "controlling the reverse rotation of the cross-flow fan".

In the preferred technical solution of the above control method, the control method further includes: after controlling the ozone device to be turned on for a second preset time period, controlling the ozone device to be turned off; after controlling the ozone device to be turned off, controlling the The cross-flow fan is off.

In the preferred technical solution of the above control method, the control method further includes: after the step of "controlling the ozone device to be closed", obtain the second relative humidity of the indoor space again; if the second relative humidity is greater than the second preset value, the ozone device is controlled to be turned on for a third preset duration every other preset time period.

In the preferred technical solution of the above control method, the step of "selectively turning on the ozone device according to the received feedback information" specifically includes: if the received feedback information is "no", then not turning on the ozone device .

In the technical solution of the present invention, the air conditioner includes an air-conditioning indoor unit, and the air-conditioning indoor unit includes a housing, a heat exchanger and a cross-flow fan arranged inside the housing. Under the action of the cross-flow fan, the air in the indoor space passes through The air inlet on the casing enters into the casing, exchanges heat with the heat exchanger, and then returns to the indoor space through the air outlet on the casing, thereby achieving the purpose of adjusting the temperature of the indoor space. The casing is provided with an ozone device, and the ozone device is arranged between the heat exchanger and the cross-flow fan, so that under the action of the cross-flow fan, the air in the indoor space fully contacts with the ozone device after exchanging heat with the heat exchanger, and the ozone device The ozone in the air enters the air and fully contacts with the air, so that the bacteria in the air can be better removed. Moreover, ozone can also enter the indoor space with the air to remove bacteria in the indoor space, thereby better improving the air quality of the indoor space.

The control method of the present invention includes: obtaining the first relative humidity of the indoor space, if the first relative humidity is greater than the first preset value, obtaining the working state of the air conditioner, and selectively controlling the ozone based on the working state of the air conditioner The device turns on. When the relative humidity of the indoor space is high, it is easy to breed a large number of bacteria. Through this control method, the ozone device can be selectively turned on according to the working status of the air conditioner, and the ozone released by the ozone device can be used to remove bacteria in the indoor space. In this way, the air quality of the indoor space can be improved more effectively and the user experience can be enhanced.

If the air conditioner is in the working state, it means that there may be users who have been or are going to be active in the indoor space where the air conditioner is located. At present, there is a need for sterilization in the indoor space. At this time, the ozone device is controlled to open, and the ozone in the ozone device is used to remove Bacteria in the indoor space, so as to achieve the purpose of improving the air quality of the indoor space. After controlling the ozone device to be turned on for the first preset time period, the bacteria in the indoor space have been basically eliminated, and at this time, the ozone device can be controlled to be turned off. In this way, the purpose of sterilization can be achieved, and the ozone concentration in the indoor space will not be too high due to the too long opening time of the ozone device, thereby affecting people's health.

If the air conditioner is in a non-working state, it is not sure whether there are users who are or are going to be active in the indoor space where the air conditioner is located at this time, and it is not sure whether there is a need for sterilization in the indoor space. At this time, send " Whether to open the ozone device" prompt information, and then selectively control the ozone device to open according to the received feedback information.

Through such a control method, the ozone device is controlled to be turned on or not according to the user's current specific state, specific activity occasions, and whether there is a need for sterilization, so that the indoor space can be sterilized in a way that is more in line with the actual needs of the user. Thus, the user experience can be effectively improved.

When the air conditioner is in a non-working state, after sending the prompt message "whether to turn on the ozone device", if the received feedback message is "no", it means that there is no need for sterilization at present, and at this time, the ozone device will not be turned on.

If the received feedback information is "Yes", it means that there is indeed a need for sterilization at present. At this time, the ozone device is controlled to be turned on, and the ozone released by the ozone device is used to remove bacteria in the indoor space. At the same time or after controlling the opening of the ozone device, control the cross-flow fan to reverse. After the heat exchanger, it is discharged from the air inlet on the shell, so that when the air flows through the ozone device, the ozone in the ozone device can remove the bacteria in the air, and part of the ozone enters the indoor space together with the air, and then removes the bacteria. Bacteria in indoor spaces. In this way, the purpose of sterilization can be achieved, and the air will not be blown from the air outlet to the customer, so that the user experience can be better improved.

Further, at the same time or after controlling the reverse rotation of the cross-flow fan, control the cross-flow fan to operate in a silent mode, that is, control the cross-flow fan to operate at a lower speed, which can not only strengthen the air circulation to achieve a better sterilization effect , and will not produce large noise, which will affect people's normal life.

Further, after the ozone device is controlled to be turned on for a second preset period of time, the bacteria in the indoor space have been basically eliminated, and at this time, the ozone device can be controlled to be turned off. In this way, the purpose of degerming can be achieved, and the ozone concentration in the indoor space will not be too high due to the too long opening time of the ozone device, thereby affecting people's health. After controlling the shutdown of the ozone device, the sterilization process ends. At this time, the user does not need to use the air conditioner to adjust the air condition of the indoor space. At this time, the cross-flow fan is controlled to be closed to save electric energy.

Further, after the step of controlling the shutdown of the ozone device, the second relative humidity of the indoor space is obtained again, if the second relative humidity is greater than the second preset value, it means that the humidity of the indoor space is relatively high at this time, and bacteria are more likely to be generated. At this time, the ozone device is controlled to open the third preset duration every other preset time period, that is, the bacteria in the indoor space are removed by intermittently controlling the ozone device to be opened, and the third preset duration is controlled by controlling the ozone device. The time is long, so as to achieve the purpose of sterilization while avoiding too high ozone concentration in the indoor space, so as to better improve the user experience.

Description of drawings

The following describes the control method of the air conditioner of the present invention by taking the wall-mounted air conditioner as an example and in conjunction with the accompanying drawings. In the accompanying drawings:

Fig. 1 is the sectional view of the wall-mounted air conditioner of the present invention of an embodiment of the present invention;

Fig. 2 is the main flowchart of the control method of the wall-mounted air conditioner of the present invention according to an embodiment of the present invention;

Fig. 3 is a flowchart of a specific implementation of the control method of the present invention in an embodiment of the present invention;

Fig. 4 is a flowchart of selectively controlling the opening of the ozone device according to the received feedback information in the control method of the present invention according to an embodiment of the present invention.

List of reference signs:

1. Shell; 2. Heat exchanger; 3. Cross-flow fan; 4. Ozone device.

Detailed ways

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. 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. Although this embodiment is described by taking a wall-mounted air conditioner as an example, it may also be applicable to indoor units of other types of air conditioners such as ceiling-mounted air conditioners and cabinet air conditioners.

It should be noted that, in the description of the present invention, terms such as "upper", "lower", "inner", "outer" and other indicated directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only It is for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

After the air conditioner has been running for a long time, especially when the humidity in the indoor space is high, a large number of bacteria will grow inside the air conditioner. When the air flows through the inside of the housing of the indoor unit of the air conditioner, bacteria will be carried to the indoor space, resulting in a decrease in air quality in the indoor space, and in severe cases, endangering people's health and poor user experience. For this reason, the present invention provides a control method of an air conditioner. When the humidity of the indoor space is high, the ozone device is selectively controlled to be turned on according to the working state of the air conditioner, so that the air quality of the indoor space can be improved more effectively. , to improve user experience.

Firstly, the possible realization of the ozone device of the present invention in the wall-mounted air conditioner is described by taking the wall-mounted air conditioner as an example and referring to FIG. 1 . Wherein, FIG. 1 is a structural diagram of a wall-mounted air conditioner of the present invention according to an embodiment of the present invention.

As shown in Figure 1, the wall-mounted air conditioner includes an air-conditioning indoor unit, which includes a housing 1, a heat exchanger 2 and a cross-flow fan 3 arranged inside the housing 1, and the cross-flow fan 3 is arranged along the heat exchanger 2. distribution in the length direction. The casing 1 has an air inlet and an air outlet. Under the action of the cross-flow fan 3, the air in the indoor space enters the casing 1 through the air inlet, exchanges heat with the heat exchanger 2, and then returns to the indoor space through the air outlet. , so as to achieve the purpose of adjusting the temperature of the indoor space. The housing 1 is provided with an ozone device 4 , and the ozone device 4 is arranged between the heat exchanger 2 and the cross-flow fan 3 by means of screw connection or clip connection. In this way, under the action of the cross-flow fan 3, the air in the indoor space is in full contact with the ozone device 4 after exchanging heat with the heat exchanger 2, and the ozone in the ozone device 4 enters into the air and fully contacts with the air, so that it can be better removed. Bacteria in the air. Moreover, ozone can also enter the indoor space with the air to remove bacteria in the indoor space, thereby better improving the air quality of the indoor space.

The shape of the ozone device 4 is roughly a strip structure, extending along the length direction of the heat exchanger 2 , and its length is roughly similar to the length of the heat exchanger 2 . The ozone device 4 arranged in this way can be more fully in contact with the air entering the casing 1 under the action of the cross-flow fan 3 , so that bacteria in the air can be better removed and a better sterilization effect can be obtained. Obviously, the length of the ozone device 4 can also be shorter than the length of the heat exchanger 2, and it is located between the heat exchanger 2 and the cross-flow fan 3 to the left, to the right or in the center. The specific shape, size and installation orientation of the ozone device 4 can be flexibly selected, as long as the ozone device 4 is arranged between the heat exchanger 2 and the cross-flow fan 3 to obtain a better sterilization effect.

In this embodiment, the wall-mounted air conditioner includes a control module, which can receive the first relative humidity of the indoor space, and can selectively control the humidity according to the working state of the air conditioner when the first relative humidity is greater than the first preset value. The ozone unit is switched on.

In this embodiment, the wall-mounted air conditioner is equipped with a humidity sensor, such as a resistive humidity sensor, a capacitive humidity sensor, an electronic humidity sensor, and the like. Taking the resistive humidity sensor as an example, it is measured based on the fact that when water vapor in the air is adsorbed on the moisture-sensitive film of the resistive humidity sensor, its resistivity and resistance value will change. The humidity sensor is connected to the control module, and after detecting the first relative humidity in the indoor space, the humidity sensor transmits the first relative humidity to the control module.

It should be noted that the humidity sensor can be arranged at the air inlet of the wall-mounted air conditioner, or it can be arranged outside one of the two end covers located at both ends of the housing, etc. Those skilled in the art can flexibly select the specific location of the humidity sensor according to the specific application scenario, as long as the relative humidity of the indoor space can be accurately obtained.

Of course, the wall-mounted air conditioner can also not be equipped with a humidity sensor, but can communicate with the humidity sensor installed anywhere in the indoor space through Bluetooth, WAN, LAN, WiFi, "WiFi + Internet access router", ZIGBEE, NFC, GPRS The humidity sensor transmits the data to the control module of the wall-mounted air conditioner after detecting the relative humidity of the indoor space.

It should be noted that only one humidity sensor may be provided, and the control module selectively controls the ozone device to be turned on according to the first relative humidity detected by the humidity sensor. Apparently, a plurality of humidity sensors can also be set, and the plurality of humidity sensors respectively transmit the detected first relative humidity to the control module, and the control module calculates the average value of the first relative humidity, and then according to the first relative humidity The average value of humidity to selectively control the opening of the ozone device. Those skilled in the art can flexibly select the number of humidity sensors according to specific application occasions, as long as the first relative humidity can be accurately obtained.

In this embodiment, the ozone device can be a device that stores ozone. After the control module controls the opening of the ozone device, the stored ozone is released to the outside of the ozone device. When air flows through the ozone device, the ozone can enter This part of the air.

Obviously, the ozone device can also be a device capable of generating ozone. After the control module controls the ozone device to be turned on, the ozone device starts to generate ozone and releases the generated ozone into the air flowing through the ozone device. For example, ozone is generated by ultraviolet irradiation: the use of ultraviolet radiation to irradiate dry oxygen causes a part of oxygen molecules to be activated and understood to be oxygen atoms, thereby forming ozone. Another example is to generate ozone by electrolysis: use low-voltage direct current to electrolyze water, so that water will undergo oxidation reaction on the anode-solution interface to generate ozone. Another example is the generation of ozone by radiochemical methods: various radioactive sources are used to dissociate oxygen molecules to generate ozone. Another example is the generation of ozone by the dielectric barrier discharge method: the free high-energy electrons in the corona generated by the alternating high-voltage electric field in the air dissociate the oxygen molecules, which are polymerized into ozone molecules by collision.

Of course, those skilled in the art can flexibly choose the specific arrangement form of the ozone device according to the specific application scenario, as long as the ozone device can release ozone outside after the ozone device is controlled to be turned on.

The control method of the air conditioner of the present invention will be described below with reference to FIG. 2 to FIG. 4 .

As shown in Figure 2, in a possible implementation manner, the control method of the present invention includes:

Step S100: Obtain the first relative humidity of the indoor space;

Step S200: If the first relative humidity is greater than the first preset value, obtain the working status of the wall-mounted air conditioner;

Step S300: Selectively control the ozone device to be turned on based on the working state of the wall-mounted air conditioner.

In step S100, the first relative humidity in the indoor space where the wall-mounted air conditioner is located is acquired based on the humidity sensor.

Step S200: compare the first relative humidity obtained in step S100 with the first preset value, if the first relative humidity is greater than the first preset value, for example, the first relative humidity is 85%, the first preset The value is 70%. It shows that the relative humidity of the indoor space is relatively high at this time, which is easy to breed bacteria. At this time, the working state of the wall-mounted air conditioner is obtained, that is, whether the wall-mounted air conditioner is currently in a working state or in a non-working state is obtained.

Apparently, the above specific values of the first relative humidity and the first preset value are just an exemplary description, and those skilled in the art should not understand it as a limitation.

In step S300: based on the working state of the wall-mounted air conditioner acquired in step S200, selectively control the ozone device to be turned on.

Through such a control method, it is possible to selectively control the opening of the ozone device according to the working status of the air conditioner, and use the ozone released by the ozone device to remove bacteria in the indoor space, thereby improving the air quality of the indoor space more effectively and enhancing the user experience. .

As shown in Figure 3, in a possible implementation manner, the control method of the present invention also includes:

Step S410: judge whether the wall-mounted air conditioner is in working state, if yes, execute step S310; if not, execute step S330;

Step S310: controlling the ozone device to be turned on;

Step S320: After controlling the ozone device to be turned on for a first preset period of time, control the ozone device to be turned off;

Step S330: Send a prompt message of "whether to turn on the ozone device";

Step S340: Selectively control the ozone device to be turned on according to the received feedback information.

In step S410, based on the working load of the wall-mounted air conditioner obtained in step S200, it is judged whether the wall-mounted air conditioner is in the working state. If so, it means that there may be users who have been or are going to be active in the indoor space where the air conditioner is located. At present, there is a need for sterilization in the indoor space. At this time, the ozone device is controlled to be turned on, that is, step S310 is executed. The ozone released by the ozone device is used to remove bacteria in the indoor space, so as to achieve the purpose of improving the air quality of the indoor space.

In step S320, after the ozone device is controlled to be turned on, that is, after step S310, the ozone device releases ozone into the air to remove bacteria in the air, and enters the indoor space together with the air to further remove bacteria in the indoor space. After the ozone device is turned on for the first preset time length, such as the first preset time length is 10 minutes, that is, after the first preset time length of the above step S310 is executed, the ozone concentration in the indoor space is already high. If the ozone concentration in the indoor space If it continues to increase, even to the highest concentration level, the user's health may be affected. At this time, the ozone device is controlled to be turned off, that is, step S320 is performed. It should be noted that, in this embodiment, the highest concentration level of ozone refers to the concentration when the ozone concentration in the air affects the user's body.

Through such a control method, the purpose of degerming can be achieved, and the ozone concentration in the indoor space will not be too high due to the long open time of the ozone device, which will affect people's health, that is, the user's health is ensured.

It should be noted that after controlling the opening of the ozone device, the ozone device can release ozone to the indoor space in a pulsed manner, that is, release a certain amount of ozone to the indoor space each time, and achieve the purpose of sterilization through multiple quantitative releases. . Obviously, after controlling the opening of the ozone device, the ozone device may not be turned off, and the ozone concentration in the indoor space may be always lower than the maximum concentration level by reducing the speed at which the ozone device releases ozone.

It should be noted that when it is acquired in step S200 that the wall-mounted air conditioner is in a working state, the ozone device may not be controlled to be turned on immediately, but a prompt message "whether to turn on the ozone device" is sent first, and then the ozone is controlled according to the user's feedback. The device starts or does not start. Those skilled in the art can flexibly choose a specific control method for controlling the ozone device when the wall-mounted air conditioner is in working condition according to specific application scenarios, as long as it can effectively remove bacteria in the indoor space and improve the air quality in the indoor space.

If not, it means that it is not sure whether a user is or is going to be active in the indoor space where the air conditioner is located at this time, and it is not sure whether the indoor space has a sterilization demand. At this time, then send "whether to open the ozone device ", that is, execute step S330.

In step S340, after sending the prompt message "whether to turn on the ozone device", that is, after step S330, selectively control the ozone device to be turned on according to the received feedback information.

Through such a control method, the ozone device can be activated or not activated according to the user's wishes, thereby better removing bacteria in the indoor space and improving user experience.

It should be noted that the above-mentioned prompt information of "whether to turn on the ozone device" can be sent to the user through voice or text or voice+text, or the above-mentioned method combined with lights or alarms. Taking the prompt information sent to the user by voice as an example, the wall-mounted air conditioner includes a playback module such as a speaker for playing voice and a sound pickup module for collecting feedback information, and the prompt information is directly sent to the user through the playback module such as a speaker. The method reminds the user that the user gives feedback information by voice, and the sound pickup module such as a microphone collects the feedback information and transmits the feedback information to the control module. Of course, the prompt information can also be directly sent to mobile terminals such as remote controllers, mobile phones, and tablet computers that communicate with the wall-mounted air conditioner, and the user returns feedback information through these mobile terminals. Those skilled in the art can flexibly select the sending object, the sending method and the specific way of returning the feedback information according to the specific application scenarios, as long as the user can know the prompt information and return the feedback information.

Through the above control method, it is also possible to control whether the ozone device is turned on or not according to the current specific state of the user, the specific activity occasion, whether there is a need for sterilization, etc., so that the indoor space can be sterilized in a way that is more in line with the actual needs of the user. Bacteria, so as to effectively improve the user experience.

As shown in Figure 4, in a possible implementation manner, "selectively controlling the opening of the ozone device according to the received feedback information" specifically includes:

Step S330: If the wall-mounted air conditioner is in a non-working state, send a prompt message "whether to turn on the ozone device";

Step S341: Determine whether the received feedback information is "yes", if not, execute step S342; if yes, execute step S343;

Step S342: Do not turn on the ozone device;

Step S343: controlling the ozone device to be turned on;

Step S344: Control the reverse rotation of the cross-flow fan;

Step S345: Control the cross-flow fan to run in silent mode.

In step S341, after sending the prompt information of "whether to turn on the ozone device" in step S330, the user gives feedback information based on his actual needs after receiving the prompt information. At this time, it is judged whether the received feedback information is yes, if not, it means that there is no need for sterilization at present, at this time, the ozone device is not turned on, that is, step S342 is executed.

If yes, it means that there is indeed a demand for sterilization at present. At this time, the ozone device is controlled to be turned on, that is, step S343 is executed, and the ozone released by the ozone device is used to remove bacteria in the indoor space.

In step S344, after the ozone device is controlled to be turned on, the cross-flow fan is controlled to reverse. Under the action of the cross-flow fan, the air in the indoor space enters the casing through the air outlet on the casing, and passes through the cross-flow fan and the ozone device in turn. , After the heat exchanger, it is discharged from the air inlet on the shell, so that when the air flows through the ozone device, the ozone in the ozone device can remove bacteria in the air, and part of the ozone enters the indoor space together with the air, and then Remove bacteria from indoor spaces. In this way, the purpose of sterilization can be achieved, and the air will not be blown from the air outlet to the customer, so that the user experience can be better improved.

It should be noted that the reverse rotation of the cross-flow fan can also be controlled while the ozone device is controlled to be turned on, that is, step S343 and step S344 can be executed simultaneously. Those skilled in the art can flexibly choose the timing of turning on the cross-flow fan according to specific application scenarios, as long as the purpose of sterilization can be achieved.

Of course, after the ozone device is controlled to be turned on, the cross-flow fan may not be controlled to rotate in reverse, but the cross-flow fan may be controlled to rotate forward, and those skilled in the art can flexibly choose according to specific application scenarios.

In step S345, while controlling the reverse rotation of the cross-flow fan, the cross-flow fan is controlled to run in silent mode, that is, step S344 and step S345 run simultaneously. That is to say, when the cross-flow fan is turned on, the cross-flow fan is controlled to run at a lower speed, such as 650r/min, so that the cross-flow fan generates less noise during operation. In this way, the air circulation can be strengthened to achieve a better sterilization effect, and no loud noise will be generated, which will affect people's normal life.

Obviously, the above-mentioned 650r/min is only an example description of the rotational speed of the cross-flow fan when it operates in silent mode, and those skilled in the art can specifically determine the speed of the cross-flow fan according to the specific model of the air conditioner, the power of the cross-flow fan, etc. The specific value of the rotational speed, as long as it can ensure that the cross-flow fan operates in a silent mode.

It should be noted that the cross-flow fan may also be controlled to run in silent mode after the cross-flow fan is controlled to reverse, that is, step S344 is executed first and then step S345 is executed. After controlling the cross-flow fan to turn on, first control the cross-flow fan to run at a slightly higher speed, such as 850r/min, etc., and then control the cross-flow fan to run in a silent mode. Those skilled in the art can flexibly choose according to specific application scenarios.

In a possible implementation manner, after step S343 is performed, the control method of the present invention further includes:

After controlling the ozone device to be turned on for a second preset period of time, the ozone device is controlled to be turned off;

After the ozone device is controlled to be closed, the cross-flow fan is controlled to be closed.

After the ozone device is controlled to be turned on, the ozone device releases ozone into the air to remove bacteria in the air, and enters the indoor space together with the air to further remove bacteria in the indoor space. After the ozone device is turned on for the second preset time length, if the second preset time length is 10 minutes, that is, after the second preset time length of the above step S343 is executed, the ozone concentration in the indoor space is already high and has reached the highest concentration level, if If the ozone concentration in the indoor space continues to rise, it may affect the health of the user. At this time, the ozone device is controlled to be turned off. Through such a control method, the purpose of sterilization can be achieved, and the ozone concentration in the indoor space will not be too high due to the too long opening time of the ozone device, which will affect people's health.

It should be noted that after controlling the opening of the ozone device, the ozone device can release ozone to the indoor space in a pulsed manner, that is, release a certain amount of ozone to the indoor space each time, and achieve the purpose of sterilization through multiple quantitative releases. . Obviously, after controlling the opening of the ozone device, the ozone device may not be turned off, and the ozone concentration in the indoor space may be lower than the maximum concentration level by reducing the speed at which the ozone device releases ozone.

After controlling the shutdown of the ozone device, the sterilization process ends. At this time, the user does not need to use the air conditioner to adjust the air condition of the indoor space. At this time, the cross-flow fan is controlled to be closed to save electric energy.

It should be noted that after controlling the shutdown of the ozone device, the cross-flow fan may not be turned off, but the cross-flow fan may be controlled to rotate forward, and the air circulation in the indoor space may be enhanced through the cross-flow fan. Of course, before controlling the forward rotation of the cross-flow fan, it is also possible to send a prompt message of "whether to control the forward rotation of the cross-flow fan", and then decide whether to control the forward rotation of the cross-flow fan according to the received feedback information. Those skilled in the art can flexibly choose according to specific application scenarios.

After "controlling the ozone device to be turned on for a first preset time period", or "after controlling the ozone device to be turned on for a second preset time period", the bacteria in the indoor space have been basically eliminated. Therefore, the oxygen generator is turned off after the ozone device is turned on for a first preset time period, and the oxygen generator is turned off after the ozone device is turned on for a second preset time period.

In a possible implementation manner, the control method of the present invention further includes:

After the step of "controlling the shutdown of the ozone device", obtain the second relative humidity of the indoor space again;

If the second relative humidity is greater than the second preset value, the ozone device is controlled to be turned on for a third preset time period every other preset time period.

After the controlled ozone device is turned off, as time goes by, the indoor space will still re-grow bacteria, especially when the humidity in the indoor space is high, it is easier to breed bacteria. In this way, in order to ensure the air quality of the indoor space, the second relative humidity of the indoor space is acquired again by using the above-mentioned humidity sensor after "controlling the shutdown of the ozone device". Then compare the second relative humidity with a second preset value. If the second relative humidity is greater than the second preset value, for example, the second relative humidity is 80%, and the second preset value is 70%. This also shows that the relative humidity of the indoor space is relatively high, which is easy to breed bacteria. At this time, the ozone device is controlled to turn on the third preset time period every other preset time period, for example, the preset time period is 3 hours, and the third preset time period is 10 minutes. That is to say, if the second relative humidity of the indoor space is greater than 70%, the ozone device is controlled to be started every 3 hours, and each time it is started for 10 minutes.

Apparently, the above specific values of the second relative humidity and the second preset value are just an exemplary description, and those skilled in the art should not understand it as a limitation thereto.

Obviously, the preset time period can also be other values, such as a shorter time such as 2.5 hours, 2 hours, or a longer time such as 3.5 hours, 4 hours, etc. Those skilled in the art can flexibly choose the preset time according to specific application scenarios The specific value of the segment, as long as the sterilization effect of the indoor space can be ensured.

In this way, the bacteria in the indoor space are removed by intermittently controlling the opening of the ozone device, and at the same time, by controlling the opening time of the ozone device to be the third preset time length, it is possible to achieve the purpose of degerming while avoiding an excessively high ozone concentration in the indoor space, thereby Can better improve user experience.

It should be noted that, instead of obtaining the second relative humidity of the indoor space again, after controlling the ozone device to be turned off, the ozone device is directly controlled to be turned on for a third preset time period at intervals of a preset time period.

It should be noted that the above-mentioned specific values of the first preset duration, the second preset duration, and the third preset duration are only exemplary descriptions, and those skilled in the art can flexibly choose according to specific application scenarios, as long as It only needs to be able to obtain a better sterilization effect after the ozone device is turned on for the first preset time period, or after the second preset time period, or after the third preset time period.

To sum up, in the preferred technical solution of the present invention, when the first relative humidity of the indoor space is greater than the first preset value, the working state of the air conditioner is obtained, and then based on the working state of the air conditioner, selectively control The ozone device is turned on, which can more effectively improve the air quality of the indoor space and enhance the user experience. If the air conditioner is in the working state, the ozone device is controlled to be turned on, and after the ozone device is turned on for a first preset time period, the ozone device is turned off. If the air conditioner is in a non-working state, a prompt message "whether to turn on the ozone device" is sent, and then selectively control the ozone device to be turned on according to the received feedback information. Through such a control method, it is possible to control whether the ozone device is turned on or not according to the current specific state of the user, the specific activity occasion, whether there is a need for sterilization, etc., so that the indoor space can be sterilized in a way that is more in line with the actual needs of the user. Bacteria, and can make the ozone concentration in the indoor space lower than the maximum concentration level, will not affect people's health, so as to improve the user experience more effectively. After the ozone device is turned off, if the second relative humidity of the indoor space is greater than the second preset value, the third preset time period of the ozone device is started every preset time period, so that the bacteria in the indoor space can be better removed, thereby Better improve user experience.

In the above embodiment, although the various steps are described according to the above sequence, those skilled in the art can understand that in order to achieve the effect of this embodiment, different steps do not have to be executed in this order, and they can be performed at the same time ( Parallel) execution or execution in reversed order, these simple changes are all within the protection scope of the present application.

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

Claims

A control method for an air conditioner, characterized in that the air conditioner includes an air conditioner indoor unit, the air conditioner indoor unit includes a housing, a heat exchanger and a cross-flow fan arranged inside the housing,

An ozone device is also provided in the housing, and the ozone device is arranged between the heat exchanger and the cross-flow fan,

The control methods include:

Obtain the first relative humidity of the indoor space;

If the first relative humidity is greater than a first preset value, obtain the working state of the air conditioner;

The ozone device is selectively controlled to be turned on based on the working state of the air conditioner.
The method according to claim 1, wherein the step of "selectively controlling the opening of the ozone device based on the working state of the air conditioner" specifically includes:

If the air conditioner is in working condition, the ozone device is controlled to be turned on.
The method according to claim 2, wherein the control method further comprises:

After the ozone device is controlled to be turned on for a first preset time period, the ozone device is controlled to be turned off.
The method according to claim 1, wherein the step of "selectively controlling the opening of the ozone device based on the working state of the air conditioner" specifically includes:

If the air conditioner is in a non-working state, then send a prompt message of "whether to open the ozone device";

The ozone device is selectively controlled to be turned on according to the received feedback information.
The method according to claim 4, wherein the step of "selectively opening the ozone device according to the received feedback information" specifically comprises:

If the received feedback information is "yes", the ozone device is controlled to be turned on.
The method according to claim 5, wherein the control method further comprises:

At the same time or after "controlling the ozone device to be turned on", the cross-flow fan is controlled to reverse.
The method according to claim 6, wherein the control method further comprises:

Simultaneously or after "controlling the reverse rotation of the cross-flow fan", control the cross-flow fan to run in a silent mode.
The method according to claim 7, wherein the control method further comprises:

After controlling the ozone device to be turned on for a second preset time period, controlling the ozone device to be turned off;

After the ozone device is controlled to be closed, the cross-flow fan is controlled to be closed.
The method according to claim 4 or 8, wherein the control method further comprises:

After the step of "controlling the shutdown of the ozone device", obtain the second relative humidity of the indoor space again;

If the second relative humidity is greater than the second preset value, the ozone device is controlled to be turned on for a third preset time period every other preset time period.
The method according to claim 5, wherein the step of "selectively opening the ozone device according to the received feedback information" specifically comprises:

If the received feedback information is "No", the ozone device is not turned on.