WO2019052074A1

WO2019052074A1 - Air conditioner, and control method and apparatus therefor

Info

Publication number: WO2019052074A1
Application number: PCT/CN2017/117640
Authority: WO
Inventors: 张博博; 席战利
Original assignee: 广东美的制冷设备有限公司; 美的集团股份有限公司
Priority date: 2017-09-12
Filing date: 2017-12-21
Publication date: 2019-03-21
Also published as: CN107477803A; CN107477803B

Abstract

An air conditioner, and a control method and apparatus therefor. The air conditioner comprises a compressor (01), an outdoor heat exchanger (02), a throttling element (03), an indoor heat exchanger (04), and an indoor fan (05) and a dehumidification valve (06) arranged corresponding to the indoor heat exchanger (04). The control method comprises the following steps: when an air conditioner enters a temperature-reaching dehumidification mode, acquiring the current indoor environment temperature and the current indoor environment humidity at every first pre-set time (S1); acquiring the current indoor moisture content according to the current indoor environment temperature and the current indoor environment humidity, and acquiring a target moisture content according to the current indoor environment temperature and a target humidity (S2); and calculating a humidity difference value between the current indoor moisture content and the target moisture content, and controlling the throttling element (03), the indoor fan (05) and the dehumidification valve (06) according to the humidity difference value, so that the air conditioner operates according to different dehumidification modes (S3).

Description

Air conditioner and control method and device thereof

Technical field

The present invention relates to the field of air conditioning technology, and in particular, to a method for controlling an air conditioner, a control device for an air conditioner, and an air conditioner having the control device.

Background technique

Generally, the air conditioner has a certain dehumidification capability during the cooling and cooling process, but when the indoor temperature reaches the preset temperature of the user, the compressor in the air conditioner will operate at a low frequency, thereby causing the temperature of the evaporator to be higher than that of the current indoor air. The dew point temperature, so that the air conditioner has almost no dehumidification function. For high-humidity areas, although the air-conditioning refrigeration process can meet the temperature comfort requirements well, it is difficult to meet the humidity requirements, and it is difficult to ensure the user's comfort requirements.

Summary of the invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, a first object of the present invention is to provide a method for controlling an air conditioner, which can achieve rapid dehumidification in a room and ensure comfort of indoor humidity, thereby satisfying user comfort requirements.

A second object of the present invention is to provide a computer readable storage medium. A third object of the present invention is to provide a control device for an air conditioner. A fourth object of the present invention is to provide an air conditioner.

In order to achieve the above object, a first aspect of the present invention provides a method for controlling an air conditioner, the air conditioner including a compressor, an outdoor heat exchanger, a throttling element, an indoor heat exchanger, and a corresponding heat exchange in the room. The indoor fan and the dehumidification valve provided by the device, the control method includes the following steps: when the air conditioner enters the temperature dehumidification mode, acquiring the current indoor ambient temperature and the current indoor environmental humidity every first preset time; Obtaining a current indoor moisture content according to the current indoor ambient temperature and the current indoor environmental humidity, and acquiring a target moisture content according to the current indoor ambient temperature and the target humidity; calculating the current indoor moisture content and the target moisture content The difference in humidity between the two, and the throttle element, the indoor fan, and the dehumidification valve are controlled according to the difference in humidity to operate the air conditioner in different dehumidification modes.

According to the control method of the air conditioner according to the embodiment of the present invention, when the air conditioner enters the temperature dehumidification mode, the current indoor ambient temperature and the current indoor environmental humidity are acquired every first preset time, and according to the current indoor environmental temperature and the current indoor environment. Humidity acquires the current indoor moisture content, and obtains the target moisture content based on the current indoor ambient temperature and target humidity. Then, calculating the humidity difference between the current indoor moisture content and the target moisture content, and controlling the throttling element, the indoor fan and the dehumidification valve according to the humidity difference, so that the air conditioner operates according to different dehumidification modes In order to achieve rapid dehumidification indoors, to ensure the comfort of indoor humidity, and to meet user comfort requirements.

According to an embodiment of the present invention, the dehumidification mode includes a first dehumidification mode, a second dehumidification mode, and a moisturizing mode, wherein if the humidity difference is greater than or equal to a first preset value, controlling the throttling element to be The fully open state, and controlling the dehumidification valve to perform a throttling operation to operate the air conditioner in the first dehumidification mode.

According to an embodiment of the present invention, if the humidity difference is smaller than the first preset value and greater than the second preset value, the rotation speed of the indoor fan is lowered by a first preset rotation speed, and the section is controlled. The flow element performs a throttling operation, and controls the dehumidification valve to be in a fully open state to operate the air conditioner in the second dehumidification mode, wherein the first preset value and the second preset value Greater than or equal to zero.

According to an embodiment of the present invention, if the humidity difference is less than a third preset value, increasing the rotational speed of the indoor fan by a second predetermined rotational speed, and controlling the throttling element to perform a throttling operation, and The dehumidification valve is controlled to be in a fully open state to operate the air conditioner in the moisturizing mode, wherein the third preset value is less than zero.

According to an embodiment of the present invention, when the air conditioner operates in the second dehumidification mode for a second preset time, or when the air conditioner operates the second preset time in the moisturizing mode, The current indoor ambient temperature adjusts an operating frequency of the compressor to cause the current indoor ambient temperature to reach a preset target temperature.

To achieve the above object, a second aspect of the present invention provides a computer readable storage medium having instructions stored therein, the air conditioner executing the above control method when the instructions are executed.

The computer readable storage medium of the embodiment of the present invention can realize rapid dehumidification indoors by ensuring the comfort of indoor humidity by performing the above-mentioned control method, thereby satisfying user comfort requirements.

In order to achieve the above object, a third aspect of the present invention provides a control device for an air conditioner, the air conditioner including a compressor, an outdoor heat exchanger, a throttling element, an indoor heat exchanger, and a corresponding heat exchange in the room. The indoor fan and the dehumidification valve are provided, and the control device comprises: a first acquisition module, configured to acquire the current indoor ambient temperature and the current indoor environment every first preset time when the air conditioner enters the temperature dehumidification mode a second acquisition module, configured to acquire a current indoor moisture content according to the current indoor ambient temperature and the current indoor environmental humidity, and obtain a target moisture content according to the current indoor ambient temperature and the target humidity; and a control module, The control module is respectively connected to the second obtaining module, the throttling element, the indoor fan and the dehumidification valve, and the control module is configured to calculate the current indoor moisture content and the target moisture content a humidity difference between the quantities, and controlling the throttle element, the indoor fan, and the dehumidification valve according to the difference in humidity, so that the air conditioner is pressed Run different dehumidification.

According to the control device of the air conditioner according to the embodiment of the present invention, when the air conditioner enters the temperature dehumidification mode, the first acquisition module acquires the current indoor ambient temperature and the current indoor environmental humidity through the first preset time, and obtains the second indoor environment. The module obtains the current indoor moisture content according to the current indoor ambient temperature and the current indoor environmental humidity, and obtains the target moisture content according to the current indoor ambient temperature and the target humidity, and calculates the current indoor moisture content and the target moisture content through the control module. The humidity difference, and the throttling element, the indoor fan and the dehumidification valve are controlled according to the difference of the humidity, so that the air conditioner operates according to different dehumidification modes, thereby realizing rapid dehumidification indoors and ensuring the comfort of the indoor humidity, and further Satisfy User comfort requirements.

According to an embodiment of the present invention, the dehumidification mode includes a first dehumidification mode, a second dehumidification mode, and a moisturizing mode, wherein if the humidity difference is greater than or equal to a first preset value, the control module controls the The throttle element is in a fully open state and controls the dehumidification valve to perform a throttling operation to cause the air conditioner to operate in the first dehumidification mode.

According to an embodiment of the present invention, if the humidity difference is less than the first preset value and greater than the second preset value, the control module decreases the rotation speed of the indoor fan by a first preset speed, and Controlling the throttling element to perform a throttling operation, and controlling the dehumidification valve to be in a fully open state to operate the air conditioner in the second dehumidification mode, wherein the first preset value and the first The second preset value is greater than or equal to zero.

According to an embodiment of the present invention, if the humidity difference is less than a third preset value, the control module increases the rotational speed of the indoor fan by a second predetermined rotational speed, and controls the throttling element to perform a section. Flow operation, and controlling the dehumidification valve to be in a fully open state to operate the air conditioner in the moisturizing mode, wherein the third preset value is less than zero.

According to an embodiment of the present invention, when the air conditioner operates in the second dehumidification mode for a second preset time, or when the air conditioner operates the second preset time in the moisturizing mode, The control module further adjusts an operating frequency of the compressor according to the current indoor ambient temperature to cause the current indoor ambient temperature to reach a preset target temperature.

In order to achieve the above object, an embodiment of the fourth aspect of the present invention provides an air conditioner including the above-described control device.

According to the air conditioner of the embodiment of the present invention, the above-mentioned control device can realize rapid dehumidification of the room and ensure the comfort of the indoor humidity, thereby satisfying the user's comfort requirement.

DRAWINGS

1 is a flow chart of a method of controlling an air conditioner according to an embodiment of the present invention;

2 is a schematic structural view of an air conditioner according to an embodiment of the present invention;

3 is a flow chart of a method of controlling an air conditioner according to an embodiment of the present invention;

4 is a block schematic diagram of a control device of an air conditioner according to an embodiment of the present invention.

Detailed ways

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

A control method of an air conditioner, a computer readable storage medium, a control device for an air conditioner, and an air conditioner having the same according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

1 is a flow chart of a control method of an air conditioner according to an embodiment of the present invention.

In an embodiment of the invention, the air conditioner includes a compressor, an outdoor heat exchanger, a throttling element, an indoor heat exchanger, and an indoor fan and a dehumidification valve disposed corresponding to the indoor heat exchanger.

Specifically, as shown in FIG. 2, the air conditioner includes a compressor 01, an outdoor heat exchanger 02, a throttle element 03, and an indoor heat exchanger 04, which are sequentially connected, and an indoor fan 05 correspondingly disposed on the indoor heat exchanger 04. The refrigerant pipeline of the indoor heat exchanger 04 comprises two parts, and two ends of one part of the refrigerant pipeline are directly connected with the throttle element 03 and the compressor 01; one end of the other part of the refrigerant pipeline passes through the dehumidification valve 06 and the throttle element 03 is connected and the other end is connected to the compressor 01.

As shown in FIG. 1, the control method of the air conditioner according to the embodiment of the present invention may include the following steps:

S1, when the air conditioner enters the temperature dehumidification mode, obtain the current indoor ambient temperature and the current indoor environmental humidity every first preset time. The first preset time may be calibrated according to actual conditions. For example, the first preset time may be 5 min.

Specifically, after the air conditioner is powered on, the user can set the operation mode and the target temperature of the air conditioner through a remote controller or the like (if the user is not set, the target temperature can be the target temperature when the last air conditioner is stopped), and the target Humidity (if the user is not set, the target humidity can be the appropriate humidity corresponding to the target temperature) and the speed of the indoor fan (if the user does not set, the speed of the indoor fan can be a preset corresponding to the current indoor ambient temperature) Indoor fan speed).

Wherein, when the user sets the operation mode of the air conditioner to the cooling mode, when the air conditioner operates in the cooling mode, the current indoor ambient temperature is obtained in real time through a temperature sensor installed on the indoor unit, and the compressor is operated according to the current indoor ambient temperature. The frequency is adjusted so that the current indoor ambient temperature reaches the target temperature. Wherein, if the current indoor ambient temperature is greater than the target temperature, the operating frequency of the compressor is increased; if the current indoor ambient temperature is less than the target temperature, the operating frequency of the compressor is lowered until the current indoor ambient temperature is equal to the target temperature (or The difference between the two is in a small range), indicating that the current indoor ambient temperature reaches the target temperature, and the air conditioner is controlled to enter the temperature dehumidification mode.

After the air conditioner enters the temperature dehumidification mode, the current indoor temperature is continuously detected by setting a temperature sensor on the indoor unit, and the current indoor humidity is detected by a humidity sensor disposed on the indoor unit.

S2: Obtain the current indoor moisture content according to the current indoor ambient temperature and the current indoor environmental humidity, and obtain the target moisture content according to the current indoor ambient temperature and the target humidity.

Specifically, the current indoor moisture content can be obtained by looking up the table according to the current indoor environmental temperature and the current indoor environmental humidity, and the target moisture content can be obtained by looking up the table according to the current indoor environmental temperature and the target humidity. For example, a mapping relationship between indoor ambient temperature, indoor environmental humidity, and indoor moisture content may be preset, as shown in Table 1, and then the current indoor ambient temperature and the detected current indoor environmental humidity are obtained by looking up the table. The indoor moisture content, and the target moisture content is obtained by looking up the table according to the detected indoor indoor temperature and the target humidity.

Among them, it can be understood that since the current indoor moisture content is judged after the air conditioner reaches the temperature, this time The detected indoor indoor temperature is very close to the target temperature, so the target moisture content can also be directly obtained according to the target temperature and the target humidity.

Table 1

Wherein, T1, T2, T3, ... Tn represent the current indoor ambient temperature, Φ1, Φ2, Φ3, ..., Φm represent the current indoor environmental humidity, dL11, dL12, dL13, ..., dLmn represents the current indoor moisture content, wherein, m The values of n and n can be calibrated according to actual conditions.

S3, calculating a humidity difference between the current indoor moisture content and the target moisture content, and controlling the throttling element, the indoor fan and the dehumidification valve according to the humidity difference, so that the air conditioner operates according to different dehumidification modes.

According to an embodiment of the present invention, the dehumidification mode includes a first dehumidification mode, a second dehumidification mode, and a moisturizing mode, wherein if the humidity difference is greater than or equal to the first preset value, the control throttling element is in a fully open state, and is controlled. The dehumidification valve performs a throttling operation to operate the air conditioner in the first dehumidification mode. The first preset value may be calibrated according to actual conditions. For example, the first preset value may be 2% rh.

Specifically, if the humidity difference is greater than or equal to the first preset value (for example, 2% rh), it indicates that the current indoor moisture content is high, and at this time, a certain dehumidification can be achieved by simply reducing the rotation speed of the indoor fan. The effect, but can not reduce the humidity a lot, so at this time with the dehumidification valve, that is, the air conditioner with constant temperature dehumidification ability to achieve a large amount of indoor dehumidification, to ensure indoor humidity comfort.

For example, by controlling the throttling element in FIG. 2 to be in a fully open state, and controlling the dehumidification valve to perform a throttling operation, the air conditioner is operated in a first dehumidification mode, and the high temperature and high pressure gaseous refrigerant from the compressor is exchanged outdoors. After the heat exchanger is exchanged, it becomes a high-temperature and high-pressure liquid refrigerant, and then a part of the high-temperature and high-pressure liquid refrigerant directly enters a part of the refrigerant tube of the indoor heat exchanger for heat exchange, and then converts into a low-temperature low-pressure liquid refrigerant flow back to the compressor; another part of the high temperature After the high-pressure liquid refrigerant is throttled by the dehumidification valve, it becomes a low-temperature low-pressure liquid refrigerant, and then heat-exchanges through another part of the refrigerant pipe of the indoor heat exchanger and then flows back to the compressor. Among them, a part of the refrigerant pipe of the indoor heat exchanger is used as a condenser to realize heating of the room, and another part of the refrigerant pipe is used as an evaporator to realize a large amount of dehumidification indoors, thereby achieving constant temperature dehumidification indoors and ensuring indoor humidity comfort. Sex.

After the air conditioner operates in the first dehumidification mode for the first preset time t, the current indoor ambient temperature and the current state are acquired again. The indoor environment humidity, and the air conditioner is controlled according to the current indoor environment temperature and the current indoor environment humidity, that is, the next cycle control is performed.

According to an embodiment of the present invention, if the humidity difference is less than the first preset value and greater than the second preset value, the rotation speed of the indoor fan is decreased by the first preset rotation speed, and the throttle element is controlled to perform the throttling operation, and The dehumidification valve is controlled to be fully open to operate the air conditioner in a second dehumidification mode. The first preset value and the second preset value are greater than or equal to zero, and the first preset value, the second preset value, and the first preset speed may be calibrated according to actual conditions, for example, the first preset value may be 2%. Rh, the second preset value may be 0% rh, and the first preset speed may be 10% of the current speed.

Further, according to an embodiment of the present invention, when the air conditioner is operated in the second dehumidification mode for a second preset time, the operating frequency of the compressor is further adjusted according to the current indoor ambient temperature, so that the current indoor ambient temperature reaches the pre-predetermined Set the target temperature.

Specifically, when the second preset value (such as 0% rh) < humidity difference < the first preset value (such as 2% rh), the current indoor moisture content is not particularly high, so this time Reduce the temperature of the indoor heat exchanger (cooling mode, also known as the evaporator) by reducing the speed of the indoor fan. When the temperature of the indoor heat exchanger is lower than the dew point temperature of the current indoor air, the indoor heat exchanger has a certain The dehumidification function plays a simple dehumidification function, thereby achieving the purpose of small dehumidification by reducing the rotation speed of the indoor fan without changing the operating state of the air conditioner, and the operation is convenient and quick. For example, reducing the first preset speed (eg, 10%) based on the current indoor fan speed, and controlling the throttle element to perform the throttling operation, and controlling the dehumidification valve to be fully open, so that the air conditioner is dehumidified by the second The mode is operated to achieve small dehumidification by reducing the indoor fan speed without changing the operating state of the air conditioner.

When the air conditioner operates in the second dehumidification mode for a second preset time (the time is slightly smaller than the first preset time to adjust the temperature), further determining whether the current indoor ambient temperature is equal to the target temperature (or both) The difference between the two is in a small range), if not, the operating frequency of the compressor is adjusted according to the current indoor ambient temperature until the current indoor ambient temperature is equal to the target temperature, and the current indoor ambient temperature and the current indoor environmental humidity are acquired again. And control the air conditioner according to the current indoor ambient temperature and the current indoor environmental humidity, that is, the next cycle control.

According to an embodiment of the present invention, if the humidity difference is less than the third preset value, the rotation speed of the indoor fan is increased by a second preset rotation speed, and the throttle element is controlled to perform the throttling operation, and the dehumidification valve is controlled to be fully open. State to allow the air conditioner to operate in a moisturizing manner. The third preset value is less than zero, and the third preset value and the second preset speed may be calibrated according to actual conditions. For example, the third preset value may be -1%rh, and the second preset speed may be current. 10% of the speed.

Further, according to an embodiment of the present invention, when the air conditioner operates in a moisturizing manner for a second preset time, the operating frequency of the compressor is further adjusted according to the current indoor ambient temperature, so that the current indoor ambient temperature reaches a preset state. Target temperature.

Specifically, when the humidity difference is less than the third preset value (eg, -1% rh), it indicates that the indoor room does not need dehumidification, and the dehumidification amount can be reduced by increasing the rotation speed of the indoor fan, for example, at present Increase the speed of the indoor fan The second preset speed (for example, 10%) controls the throttle element to perform the throttling operation and controls the dehumidification valve to be fully open to operate the air conditioner in a moisturizing manner.

When the air conditioner operates in a moisturizing manner for a second preset time (the time is slightly smaller than the first preset time to adjust the temperature), further determining whether the current indoor ambient temperature is equal to the target temperature (or between the two) The difference is in a small range), if not, the operating frequency of the compressor is adjusted according to the current indoor ambient temperature until the current indoor ambient temperature is equal to the target temperature, and the current indoor ambient temperature and the current indoor ambient humidity are acquired again, and The air conditioner is controlled according to the current indoor ambient temperature and the current indoor environmental humidity, that is, the next cycle control is performed.

That is to say, in the embodiment of the present invention, after the air conditioner is operated at a temperature, a different dehumidification mode is selected according to the difference in humidity between the current indoor moisture content and the target moisture content, thereby achieving rapid temperature dehumidification. The purpose is to ensure the comfort of the user. Specifically, after the temperature is reached, when the detected indoor moisture content is greater than the moisture content corresponding to the target humidity set by the user, the temperature of the indoor heat exchanger is lowered by reducing the rotation speed of the indoor fan to achieve small dehumidification. The effect is that when the detected indoor moisture content is greater than the moisture content corresponding to the target humidity set by the user, a large amount of dehumidification is realized by opening the dehumidification valve inside the indoor heat exchanger to ensure the user's entire process is comfortable and comfortable.

Further, FIG. 3 is a flow chart of a method of controlling an air conditioner according to an embodiment of the present invention. As shown in FIG. 3, the control method of the air conditioner may include the following steps:

S101, enters the temperature dehumidification mode.

S102. The user sets the target humidity Φs.

S103. Detect the current indoor ambient temperature T1 and the current indoor environmental humidity Φ, and check the table to obtain the current indoor moisture content dL. It can be understood that the current indoor ambient temperature T1 can also be the target temperature after reaching the temperature.

S104, comparing the current indoor moisture content dL with the target moisture content a, wherein the target moisture content a is determined by the current indoor environmental temperature T1 and the target humidity Φs.

S105, determining whether dL-a≥2 is established. If yes, go to step S106; if no, go to step S107.

S106, the throttling element is fully open, and the dehumidification valve is throttled for a first preset time t.

At S107, it is judged whether or not dL-a>0 is established. If yes, step S108 is performed.

S108, the speed of the indoor fan is reduced by 10%. When the speed is reduced to the lower limit of the speed, skip this step.

S109, the throttling element is throttled, and the dehumidification valve is fully opened for a first preset time t.

S110: Adjust the air conditioner according to a preset control procedure to ensure that the temperature of the T1 is constant, that is, keep the target temperature constant. The preset control procedure may be: if the current indoor ambient temperature is less than T1, the operating frequency of the compressor is increased; if the current indoor ambient temperature is greater than T1, the operating frequency of the compressor is lowered.

In S111, it is judged whether or not dL-a<-1 is established. If yes, step S112 is performed.

S112, the speed of the indoor fan increases by 10%, and when the speed is increased to the upper limit of the speed, this step is skipped.

S113, the throttling element is throttled, and the dehumidification valve is fully opened for a first preset time t.

S114: Adjust the air conditioner according to a preset control procedure to ensure that the temperature of the T1 is constant, that is, keep the target temperature constant.

It should be noted that, in other cases, the air conditioner is not adjusted, that is, after the current state is maintained for the first preset time t, the process returns to step S103.

In summary, according to the control method of the air conditioner according to the embodiment of the present invention, when the air conditioner enters the temperature dehumidification mode, the current indoor ambient temperature and the current indoor environmental humidity are acquired every first preset time, and according to the current indoor environment. The temperature and the current indoor environmental humidity obtain the current indoor moisture content, and obtain the target moisture content according to the current indoor environmental temperature and the target humidity. Then, calculating the humidity difference between the current indoor moisture content and the target moisture content, and controlling the throttling element, the indoor fan and the dehumidification valve according to the humidity difference, so that the air conditioner operates according to different dehumidification modes In order to achieve rapid dehumidification indoors, to ensure the comfort of indoor humidity, and to meet user comfort requirements.

Further, an embodiment of the present invention also proposes a computer readable storage medium having instructions stored therein, the air conditioner executing the above control method when the instructions are executed.

In an embodiment of the present invention, as shown in FIG. 2, the air conditioner includes a compressor 01, an outdoor heat exchanger 02, a throttle element 03, an indoor heat exchanger 04, and an indoor fan 05 provided by a corresponding indoor heat exchanger 04. Dehumidification valve 06.

As shown in FIG. 4, the control device of the air conditioner of the embodiment of the present invention may include: a first acquisition module 10, a second acquisition module 20, and a control module 30.

The first obtaining module 10 is configured to acquire the current indoor ambient temperature and the current indoor ambient humidity every first preset time when the air conditioner enters the temperature dehumidification mode; the second obtaining module 20 is configured to use the current indoor ambient temperature and The current indoor environment humidity obtains the current indoor moisture content, and obtains the target moisture content according to the current indoor environment temperature and the target humidity; the control module 30 is respectively connected to the second acquisition module 20, the throttle element 03, the indoor fan 05, and the dehumidification valve 06. The control module 30 is configured to calculate a humidity difference between the current indoor moisture content and the target moisture content, and control the throttle element 03, the indoor fan 05, and the dehumidification valve 06 according to the humidity difference, so that the air conditioner follows Different dehumidification modes are used.

According to an embodiment of the present invention, the dehumidification mode includes a first dehumidification mode, a second dehumidification mode, and a moisturizing mode, wherein if the humidity difference is greater than or equal to the first preset value, the control module 30 controls the throttling element 03 to be fully open. State, and control the dehumidification valve 06 to perform a throttling operation to operate the air conditioner in the first dehumidification mode.

According to an embodiment of the present invention, if the humidity difference is less than the first preset value and greater than the second preset value, the control module 30 reduces the rotation speed of the indoor fan 05 by a first preset rotation speed, and controls the throttle element 03 to perform The throttling operation, and controlling the dehumidification valve 06 to be in a fully open state, causes the air conditioner to operate in a second dehumidification mode, wherein the first preset value and the second preset value are greater than or equal to zero.

According to an embodiment of the present invention, if the humidity difference is less than the third preset value, the control module 30 sets the indoor fan The rotation speed of 05 is increased by the second preset rotation speed, and the throttle element 03 is controlled to perform the throttling operation, and the dehumidification valve 06 is controlled to be in the fully open state, so that the air conditioner operates in a moisturizing mode, wherein the third preset value is less than zero. .

According to an embodiment of the present invention, when the air conditioner operates in the second dehumidification mode for a second preset time, or the air conditioner operates in a moisturizing manner for a second preset time, the control module 30 further controls the compressor according to the current indoor ambient temperature. The operating frequency of 01 is adjusted so that the current indoor ambient temperature reaches a preset target temperature.

It should be noted that, for details not disclosed in the control device of the air conditioner of the embodiment of the present invention, refer to the details disclosed in the control method of the air conditioner according to the embodiment of the present invention, and details are not described herein again.

According to the control device of the air conditioner according to the embodiment of the present invention, when the air conditioner enters the temperature dehumidification mode, the first acquisition module acquires the current indoor ambient temperature and the current indoor environmental humidity through the first preset time, and obtains the second indoor environment. The module obtains the current indoor moisture content according to the current indoor ambient temperature and the current indoor environmental humidity, and obtains the target moisture content according to the current indoor ambient temperature and the target humidity, and calculates the current indoor moisture content and the target moisture content through the control module. The humidity difference, and the throttling element, the indoor fan and the dehumidification valve are controlled according to the difference of the humidity, so that the air conditioner operates according to different dehumidification modes, thereby realizing rapid dehumidification indoors and ensuring the comfort of the indoor humidity, and further Meet user comfort requirements.

Further, an embodiment of the present invention also proposes an air conditioner including the above-described control device.

According to the air conditioner of the embodiment of the present invention, the above-described control device can realize rapid dehumidification of the room and ensure the comfort of the indoor humidity, thereby satisfying the user's comfort requirement.

It should be understood that portions of the invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

In addition, in the description of the present invention, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial", "Radial" The orientation or positional relationship of the indications, the "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the present invention and the simplified description, rather than indicating or implying that the device or component referred to must have a specific The orientation, construction and operation in a particular orientation are not to be construed as limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include at least one of the features, either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements, unless otherwise specified Limited. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification and features of various embodiments or examples may be combined and combined without departing from the scope of the invention.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims

A method for controlling an air conditioner, characterized in that the air conditioner comprises a compressor, an outdoor heat exchanger, a throttling element, an indoor heat exchanger, and an indoor fan and a dehumidification valve corresponding to the indoor heat exchanger, The control method includes the following steps:

When the air conditioner enters the temperature dehumidification mode, the current indoor ambient temperature and the current indoor environmental humidity are acquired every first preset time;

Obtaining a current indoor moisture content according to the current indoor ambient temperature and the current indoor environmental humidity, and acquiring a target moisture content according to the current indoor ambient temperature and the target humidity;

Calculating a humidity difference between the current indoor moisture content and the target moisture content, and controlling the throttling element, the indoor fan, and the dehumidification valve according to the humidity difference, so that The air conditioner operates in different dehumidification modes.
The control method of the air conditioner according to claim 1, wherein the dehumidification mode comprises a first dehumidification mode, a second dehumidification mode, and a moisturizing mode, wherein if the humidity difference is greater than or equal to a first preset value And controlling the throttling element to be in a fully open state, and controlling the dehumidification valve to perform a throttling operation to operate the air conditioner in the first dehumidification mode.
The control method of the air conditioner according to claim 2, wherein if the humidity difference is smaller than the first preset value and greater than the second preset value, the rotation speed of the indoor fan is lowered first Presetting the rotational speed, and controlling the throttling element to perform a throttling operation, and controlling the dehumidification valve to be in a fully open state to operate the air conditioner in the second dehumidification mode, wherein the first preset The value and the second preset value are greater than or equal to zero.
The control method of the air conditioner according to claim 2, wherein if the humidity difference is less than a third preset value, the rotation speed of the indoor fan is increased by a second predetermined rotation speed, and the The throttling element performs a throttling operation, and controls the dehumidification valve to be in a fully open state to operate the air conditioner in the moisturizing mode, wherein the third preset value is less than zero.
The control method of an air conditioner according to claim 3 or 4, wherein the air conditioner is operated in the second dehumidification mode for a second predetermined time, or the air conditioner is operated in the moisturizing mode And during the second preset time, the operating frequency of the compressor is further adjusted according to the current indoor ambient temperature, so that the current indoor ambient temperature reaches a preset target temperature.
A computer readable storage medium having instructions stored therein, the air conditioner performing the control method according to any one of claims 1 to 5 when the instructions are executed.
A control device for an air conditioner, comprising: a compressor, an outdoor heat exchanger, a throttling element, an indoor heat exchanger, and an indoor fan and a dehumidification valve corresponding to the indoor heat exchanger; The control device includes:

a first acquiring module, configured to acquire a current indoor ambient temperature and a current indoor environmental humidity every first preset time when the air conditioner enters the temperature dehumidification mode;

a second acquiring module, configured to acquire a current indoor moisture content according to the current indoor ambient temperature and the current indoor environmental humidity, and obtain a target moisture content according to the current indoor ambient temperature and the target humidity;

a control module, the control module being respectively connected to the second acquisition module, the throttling element, the indoor fan and the dehumidification valve, wherein the control module is configured to calculate the current indoor moisture content and the a humidity difference between the target moisture contents, and controlling the throttle element, the indoor fan, and the dehumidification valve according to the humidity difference to operate the air conditioner according to different dehumidification modes.
The control device for an air conditioner according to claim 7, wherein the dehumidification mode comprises a first dehumidification mode, a second dehumidification mode, and a moisturizing mode, wherein if the humidity difference is greater than or equal to a first preset value And the control module controls the throttling element to be in a fully open state, and controls the dehumidification valve to perform a throttling operation to operate the air conditioner in the first dehumidification mode.
The control device for an air conditioner according to claim 8, wherein if the humidity difference is smaller than the first preset value and greater than a second preset value, the control module turns the indoor fan Reducing the rotational speed by a first predetermined rotational speed, and controlling the throttling element to perform a throttling operation, and controlling the dehumidification valve to be in a fully open state to operate the air conditioner in the second dehumidification mode, wherein The first preset value and the second preset value are greater than or equal to zero.
The control device for an air conditioner according to claim 8, wherein if the humidity difference is less than a third preset value, the control module increases the rotational speed of the indoor fan by a second predetermined rotational speed. And controlling the throttling element to perform a throttling operation, and controlling the dehumidification valve to be in a fully open state to operate the air conditioner in the moisturizing mode, wherein the third preset value is less than zero.
The control device for an air conditioner according to claim 9 or 10, wherein the air conditioner is operated in the second dehumidification mode for a second predetermined time, or the air conditioner is operated in the moisturizing mode During the second preset time, the control module further adjusts the operating frequency of the compressor according to the current indoor ambient temperature, so that the current indoor ambient temperature reaches a preset target temperature.
An air conditioner comprising the control device according to any one of claims 7-11.