CN115059995A

CN115059995A - Control method and operation control device for air conditioner, air conditioner and storage medium

Info

Publication number: CN115059995A
Application number: CN202210743468.4A
Authority: CN
Inventors: 陈磊; 周丽薇; 武运动; 梁科琳
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-09-16
Anticipated expiration: 2042-06-28
Also published as: CN115059995B

Abstract

The invention provides a control method of an air conditioner, an operation control device, the air conditioner and a storage medium, wherein the control method of the air conditioner comprises the following steps: when the air conditioner is in a refrigerating operation state, acquiring environmental parameters, the evaporation temperature of the air conditioner and a target temperature, wherein the environmental parameters comprise relative humidity; calculating the dew point temperature under the current state according to the environmental parameters; when the relative humidity is out of a preset humidity range, adjusting the operating frequency of a compressor and/or the rotating speed of an inner fan according to the environmental parameter, the evaporation temperature and the target temperature so as to enable the evaporation temperature to fall into a preset temperature range, wherein the preset temperature range is determined by the dew point temperature and a preset temperature compensation value; according to the technical scheme of the embodiment of the invention, the humidity requirement of a user in the refrigeration process is met, and the use comfort of the user is improved.

Description

Control method of air conditioner, operation control device, air conditioner and storage medium

Technical Field

The present invention relates to the field of air conditioning technologies, and in particular, to a control method, an operation control device, an air conditioner, and a storage medium for an air conditioner.

Background

Along with the continuous improvement of people's standard of living, the air conditioner has widely applied to people's daily life, the air conditioner mainly utilizes its refrigeration function to realize the reduction to air temperature, thereby satisfy the travelling comfort requirement of user to ambient temperature, and along with people's gradual improvement to the health requirement, humidity also becomes the key factor of ambient comfort, prior art's air conditioner is in the refrigeration operation process, mainly use to reduce ambient temperature as the control objective, be difficult to satisfy user's humidity requirement, reduce user's use travelling comfort.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a control method, an operation control device, an air conditioner and a storage medium of the air conditioner, which meet the humidity requirement of a user in the refrigeration process and improve the use comfort of the user.

In a first aspect, an embodiment of the present invention provides a control method for an air conditioner, where the control method includes:

when the air conditioner is in a refrigerating operation state, acquiring environmental parameters, the evaporation temperature of the air conditioner and a target temperature, wherein the environmental parameters comprise relative humidity;

calculating the dew point temperature under the current state according to the environmental parameters;

when the relative humidity is out of a preset humidity range, adjusting the operating frequency of the compressor and/or the rotating speed of the inner fan according to the environmental parameters, the evaporation temperature and the target temperature so that the evaporation temperature falls into a preset temperature range, wherein the preset temperature range is determined by the dew point temperature and a preset temperature compensation value.

The control method of the air conditioner provided by the embodiment of the invention at least has the following beneficial effects: when being in the refrigeration running state, through obtaining the target temperature, can satisfy user's temperature demand, through obtaining environmental parameter and evaporating temperature, the environmental parameter includes relative humidity, and calculate the dew point temperature under the current condition according to the environmental parameter, through considering the humidity factor in refrigeration process, be outside the humidity range of predetermineeing when relative humidity, according to the environmental parameter, evaporating temperature and target temperature adjust the operating frequency of compressor and/or the rotational speed of interior fan, make evaporating temperature fall into the temperature range of predetermineeing, it is relevant with dew point temperature to predetermine the temperature range, can effectively adjust except that the moisture capacity, thereby make relative humidity reach within the humidity range of predetermineeing, satisfy user's humidity demand in refrigeration process, be favorable to user's healthy, improve user's use travelling comfort.

In the control method of the air conditioner, the environmental parameter includes an indoor environmental temperature, the preset humidity range includes a first preset humidity as an upper limit value, and when the relative humidity is greater than the first preset humidity, the operating frequency of the compressor and/or the rotation speed of the inner fan are adjusted according to the environmental parameter, the evaporation temperature and the target temperature, so that the evaporation temperature falls into the preset temperature range, including:

under the condition that the indoor environment temperature is greater than or equal to the sum of the target temperature and a first preset value, increasing the running frequency of a compressor so that the evaporation temperature is less than or equal to the difference between the dew point temperature and the preset temperature compensation value;

and under the condition that the indoor environment temperature is less than the sum of the target temperature and a first preset value, increasing the operating frequency of the compressor and reducing the rotating speed of the inner fan so as to enable the evaporation temperature to be less than or equal to the difference between the dew point temperature and the preset temperature compensation value.

When the indoor environment temperature is greater than or equal to the sum of the target temperature and the first preset value, the current indoor environment temperature is higher, the requirement of temperature reduction of a user is more urgent, the operation frequency of the compressor is increased, the evaporation temperature is reduced, the evaporation temperature is smaller than or equal to the difference between the dew point temperature and the preset temperature compensation value, normal cold output and increased dehumidification capacity can be met, the high energy efficiency of the air conditioner is ensured, when the indoor environment temperature is smaller than the sum of the target temperature and the first preset value, the difference between the current indoor environment temperature and the target temperature is small, the increased dehumidification capacity can be mainly considered at the moment, the quick dehumidification effect can be achieved by increasing the operation frequency of the compressor and reducing the rotating speed of the inner fan

In the above method for controlling an air conditioner, in a case where the indoor ambient temperature is greater than or equal to a sum of the target temperature and a first preset value, the increasing an operating frequency of the compressor includes:

controlling the operating frequency of the compressor to increase by a first frequency variation value according to the evaporating temperature and the dew point temperature.

It should be noted that, when the indoor ambient temperature is greater than or equal to the sum of the target temperature and the first preset value, in order to ensure the output of the cooling capacity, a control measure of only increasing the operating frequency of the compressor is taken, so that the cooling requirement of the user can be met, and a certain dehumidification effect is ensured.

In the above method for controlling an air conditioner, when the indoor ambient temperature is less than the sum of the target temperature and a first preset value, the increasing the operating frequency of the compressor and the decreasing the rotation speed of the inner fan includes:

and controlling the running frequency of the compressor to increase a first frequency change value and controlling the rotating speed of the inner fan to decrease a first rotating speed change value according to the evaporation temperature and the dew point temperature.

When the indoor environment temperature is less than the sum of the target temperature and the first preset value, the increased dehumidification capacity can be used as a main control target, control measures of increasing the operation frequency of the compressor and reducing the rotating speed of the inner fan are taken, the normal refrigeration requirement of a user can be met, meanwhile, dehumidification can be performed quickly, the operation frequency of the compressor is controlled according to the evaporation temperature and the dew point temperature to increase the first frequency change value and control the rotating speed of the inner fan to reduce the first rotating speed change value, the evaporation temperature can be reduced, the evaporation temperature is less than or equal to the difference between the dew point temperature and the preset temperature compensation value, and the dehumidification requirement is met.

In the control method of the air conditioner, the environmental parameter includes an indoor environmental temperature, the preset humidity range includes a second preset humidity as a lower limit value, and when the relative humidity is smaller than the second preset humidity, the operating frequency of the compressor and/or the rotation speed of the inner fan are adjusted according to the environmental parameter, the evaporation temperature and the target temperature, so that the evaporation temperature falls within the preset temperature range, including:

under the condition that the indoor environment temperature is greater than or equal to the sum of the target temperature and a second preset value, the rotating speed of an inner fan is increased, so that the evaporation temperature is greater than or equal to the sum of the dew point temperature and the preset temperature compensation value;

and under the condition that the indoor environment temperature is less than the sum of the target temperature and a second preset value, increasing the rotating speed of an inner fan and reducing the operating frequency of a compressor so as to enable the evaporation temperature to be greater than or equal to the sum of the dew point temperature and the preset temperature compensation value.

When the indoor environment temperature is greater than or equal to the sum of the target temperature and the second preset value, the current indoor environment temperature is higher, a certain refrigeration effect can be ensured by increasing the rotating speed of the inner fan, meanwhile, the evaporation temperature can be increased, so that the evaporation temperature is greater than or equal to the sum of the dew point temperature and the preset temperature compensation value, namely, the evaporation temperature falls into the preset temperature range, the dehumidification capacity can be reduced while the normal cold output is ensured, the energy efficiency of the air conditioner is improved, when the indoor environment temperature is less than the sum of the target temperature and the second preset value, the difference between the current indoor environment temperature and the target temperature is not large, and the current cold output is larger, the dehumidification capacity is mainly considered to be reduced, the operating frequency of the compressor can be reduced while the rotating speed of the inner fan is increased, the purpose of rapid dehumidification is achieved, and the evaporation temperature is increased, so that the evaporation temperature is greater than or equal to the sum of the dew point temperature and the preset temperature compensation value.

In the above method for controlling an air conditioner, when the indoor ambient temperature is greater than or equal to a sum of the target temperature and a second preset value, the increasing the rotation speed of the inner fan includes:

and controlling the rotating speed of the inner fan to increase a second rotating speed change value according to the evaporation temperature and the dew point temperature.

When the relative humidity is less than the second preset humidity, under the condition that the indoor environment temperature is greater than or equal to the sum of the target temperature and the second preset value, in order to ensure a certain refrigeration effect and reduce dehumidification, a control measure for increasing the rotating speed of the inner fan is taken.

In the above method for controlling an air conditioner, when the indoor ambient temperature is less than the sum of the target temperature and a second preset value, the increasing the rotation speed of the inner fan and the decreasing the operating frequency of the compressor includes:

and controlling the rotating speed of the inner fan to increase a second rotating speed change value and controlling the running frequency of the compressor to decrease a second frequency change value according to the evaporation temperature and the dew point temperature.

When the relative humidity is less than the second preset humidity, and under the condition that the indoor environment temperature is less than the sum of the target temperature and the second preset value, the difference between the current indoor environment temperature and the target temperature is not large, the dehumidification amount is mainly considered to be reduced, the control measures of improving the rotating speed of the inner fan and reducing the operation frequency of the compressor are taken, the evaporation temperature can be improved, the evaporation temperature is greater than or equal to the sum of the dew point temperature and the preset temperature compensation value, the dehumidification amount is reduced as far as possible, and the effects of energy conservation and moisture preservation can be achieved.

In the above method for controlling an air conditioner, the controlling the rotation speed of the internal fan to increase by a second rotation speed variation value according to the evaporation temperature and the dew point temperature includes:

under the condition that the relative humidity is larger than the difference between the second preset humidity and a third preset humidity, controlling the rotating speed of the inner fan to increase a third rotating speed change value according to the evaporation temperature and the dew point temperature;

under the condition that the relative humidity is smaller than or equal to the difference between the second preset humidity and the third preset humidity, controlling the rotating speed of the inner fan to increase by a fourth rotating speed change value according to the evaporation temperature and the dew point temperature; wherein the fourth rotation speed variation value is greater than the third rotation speed variation value.

When the relative humidity is smaller than the second preset humidity, a humidity judgment condition can be further set, the fourth rotating speed change value is larger than the third rotating speed change value, the rotating speed change value of the inner fan is adjusted under the condition that the relative humidity is particularly low, so that the aim of keeping moisture as far as possible is achieved, the rotating speed of the inner fan is made to be larger, the dehumidification capacity can be further reduced, and the effects of energy conservation and moisture keeping are achieved.

In the above method for controlling an air conditioner, the controlling the rotation speed of the inner fan to increase by a second rotation speed variation value and the operating frequency of the compressor to decrease by a second frequency variation value according to the evaporating temperature and the dew point temperature includes:

under the condition that the relative humidity is greater than the difference between the second preset humidity and the third preset humidity, controlling the rotating speed of the inner fan to increase a third rotating speed change value and controlling the operating frequency of the compressor to decrease the third frequency change value according to the evaporation temperature and the dew point temperature;

under the condition that the relative humidity is smaller than or equal to the difference between the second preset humidity and the third preset humidity, controlling the rotating speed of the inner fan to increase a fourth rotating speed change value and controlling the operating frequency of the compressor to decrease a fourth frequency change value according to the evaporation temperature and the dew point temperature; wherein the fourth rotation speed variation value is greater than the third rotation speed variation value, and the fourth frequency variation value is greater than the third frequency variation value.

The fourth rotating speed change value is larger than the third rotating speed change value, the fourth frequency change value is larger than the third frequency change value, the rotating speed change value of the inner fan is adjusted under the condition that the relative humidity is extremely low, the aim of keeping moisture as far as possible is achieved, the rotating speed of the inner fan is made larger, the operating frequency of the compressor is made lower, the dehumidification capacity can be further reduced, and the effects of saving energy and keeping moisture are achieved.

In a second aspect, an embodiment of the present invention provides an operation control apparatus, including at least one control processor and a memory, where the memory is used for being connected to the at least one control processor in a communication manner; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the control method as described above in the embodiments of the first aspect.

The operation control device provided by the embodiment of the invention at least has the following beneficial effects: when being in the refrigeration running state, through obtaining the target temperature, can satisfy user's temperature demand, through obtaining environmental parameter and evaporating temperature, the environmental parameter includes relative humidity, and calculate the dew point temperature under the current condition according to the environmental parameter, through considering the humidity factor in refrigeration process, be outside the humidity range of predetermineeing when relative humidity, according to the environmental parameter, evaporating temperature and target temperature adjust the operating frequency of compressor and/or the rotational speed of interior fan, make evaporating temperature fall into the temperature range of predetermineeing, it is relevant with dew point temperature to predetermine the temperature range, can effectively adjust except that the moisture capacity, thereby make relative humidity reach within the humidity range of predetermineeing, satisfy user's humidity demand in refrigeration process, be favorable to user's healthy, improve user's use travelling comfort.

In a third aspect, an embodiment of the present invention provides an air conditioner, including the operation control device as described in the second aspect.

The air conditioner provided by the embodiment of the invention at least has the following beneficial effects: when being in the refrigeration running state, through obtaining the target temperature, can satisfy user's temperature demand, through obtaining environmental parameter and evaporating temperature, the environmental parameter includes relative humidity, and calculate the dew point temperature under the current condition according to the environmental parameter, through considering the humidity factor in refrigeration process, be outside the humidity range of predetermineeing when relative humidity, according to the environmental parameter, evaporating temperature and target temperature adjust the operating frequency of compressor and/or the rotational speed of interior fan, make evaporating temperature fall into the temperature range of predetermineeing, it is relevant with dew point temperature to predetermine the temperature range, can effectively adjust except that the moisture capacity, thereby make relative humidity reach within the humidity range of predetermineeing, satisfy user's humidity demand in refrigeration process, be favorable to user's healthy, improve user's use travelling comfort.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where computer-executable instructions are stored, and the computer-executable instructions are configured to enable a computer to execute the control method according to the embodiment of the first aspect.

The computer-readable storage medium provided by the embodiment of the invention has at least the following beneficial effects: when being in the refrigeration running state, through obtaining the target temperature, can satisfy user's temperature demand, through obtaining environmental parameter and evaporating temperature, the environmental parameter includes relative humidity, and calculate the dew point temperature under the current condition according to the environmental parameter, through considering the humidity factor in refrigeration process, be outside the humidity range of predetermineeing when relative humidity, according to the environmental parameter, evaporating temperature and target temperature adjust the operating frequency of compressor and/or the rotational speed of interior fan, make evaporating temperature fall into the temperature range of predetermineeing, it is relevant with dew point temperature to predetermine the temperature range, can effectively adjust except that the moisture capacity, thereby make relative humidity reach within the humidity range of predetermineeing, satisfy user's humidity demand in refrigeration process, be favorable to user's healthy, improve user's use travelling comfort.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The invention is further described below with reference to the accompanying drawings and examples;

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

Fig. 2 is a flowchart of a control method of an air conditioner according to a second embodiment of the present invention;

fig. 3 is a flowchart of a control method of an air conditioner according to a third embodiment of the present invention;

fig. 4 is a flowchart of a control method of an air conditioner according to a fourth embodiment of the present invention;

fig. 5 is a flowchart of a control method of an air conditioner according to a fifth embodiment of the present invention;

fig. 6 is a flowchart of a control method of an air conditioner according to a sixth embodiment of the present invention;

fig. 7 is a flowchart of a control method of an air conditioner according to a seventh embodiment of the present invention;

fig. 8 is a flowchart of a control method of an air conditioner according to an eighth embodiment of the present invention;

fig. 9 is a flowchart of a control method of an air conditioner according to a ninth embodiment of the present invention;

fig. 10 is an overall flowchart of a control method of an air conditioner according to a tenth embodiment of the present invention;

fig. 11 is a schematic structural diagram of an operation control apparatus according to an eleventh embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

It should be understood that in the description of the embodiments of the present invention, if there is any description of "first", "second", etc., it is only for the purpose of distinguishing technical features, and it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features. "at least one" means one or more, "a plurality" means two or more, greater than, less than, greater than, and the like, without the inclusion of a number, and greater than, less than, and the like, with the inclusion of a number, and "a number" means one or more, unless specifically limited otherwise. "and/or" describes the association relationship of the associated objects, and means that there can be three relationships, it is understood that a and/or B can mean the case where a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural.

Furthermore, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, and may include, for example, fixed or movable connections, removable or non-removable connections, or integral connections; may be mechanically connected, may be electrically connected or may be in communication with each other; may be directly connected or indirectly connected through an intermediate. It should be noted that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different from that in the flowcharts.

It should be noted that the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The control method, the operation control device, the air conditioner and the storage medium of the air conditioner provided by the embodiment of the invention meet the humidity requirement of a user in the refrigeration process and improve the use comfort of the user.

The embodiments of the present invention will be further explained with reference to the drawings.

As shown in fig. 1, an embodiment of the first aspect of the present invention provides a control method of an air conditioner, including, but not limited to, steps S110 to S130:

step S110: when the air conditioner is in a cooling operation state, the environmental parameters, the evaporation temperature of the air conditioner and the target temperature are obtained, wherein the environmental parameters comprise relative humidity.

It should be noted that, when the air conditioner is in the cooling operation state, the target temperature represents the ambient temperature that the user needs to reach, the user may input the target temperature to the air conditioner through a remote controller or other communication devices, and the ambient state of the air conditioner may be reflected by obtaining the ambient parameters, where the ambient parameters may include, but are not limited to, applicable parameters such as relative humidity, indoor and outdoor ambient temperatures, air volume on the evaporator side, air volume on the condenser side, and the like. It can be understood that the relative humidity adopted in the embodiment is the indoor environment humidity of the environment where the user is located, and the humidity condition of the environment where the user is located can be reflected by obtaining the relative humidity. The evaporation temperature is the pipe temperature of the indoor heat exchanger, and the working condition of the air conditioner in the current state can be reflected by acquiring the evaporation temperature of the air conditioner. Specifically, the relative humidity in the cooling operation state can be detected in real time by arranging a humidity sensor on the indoor unit of the air conditioner, and the evaporation temperature in the cooling operation state can be detected in real time by arranging a temperature sensor on the indoor heat exchanger.

Step S120: and calculating the dew point temperature in the current state according to the environmental parameters.

The dew point temperature is the temperature at which unsaturated humid air is cooled to saturation under a certain partial pressure of water vapor, and condensation water is generated when the surface of an object is lower than the dew point temperature. The dew point temperature may be calculated by using a calculation method in the prior art, specifically, the environmental parameter includes relative humidity and indoor environmental temperature, and the dew point temperature may be calculated according to the relative humidity and the indoor environmental temperature, for example, a magerlas formula may be used, the indoor environmental temperature and the relative humidity are substituted into the magerlas formula to calculate an initial dew point temperature, the dew point temperature is used as an initial value, and then the final dew point temperature is obtained by performing repeated approximation.

Step S130: and when the relative humidity is out of the preset humidity range, adjusting the operating frequency of the compressor and/or the rotating speed of the inner fan according to the environmental parameters, the evaporation temperature and the target temperature so as to enable the evaporation temperature to fall into the preset temperature range, wherein the preset temperature range is determined by the dew point temperature and the preset temperature compensation value.

It is understood that the preset humidity range is a humidity range comfortable for a user, and the preset humidity range may be input to the air conditioner by the user through a remote controller or other communication devices, or may be set according to factory default of the air conditioner. When the relative humidity is outside the preset humidity range, it indicates that the relative humidity in the current refrigeration operation state cannot meet the comfort requirement of the user, the operation frequency of the compressor and/or the rotation speed of the inner fan may be adjusted according to the environmental parameter, the evaporation temperature and the target temperature, so that the evaporation temperature falls within the preset temperature range, further, the relative humidity is adjusted to the preset humidity range, only the operation frequency of the compressor or only the rotation speed of the inner fan may be adjusted, or the operation frequency of the compressor and the rotation speed of the inner fan may be adjusted at the same time, in addition, adjusting the operation frequency of the compressor may specifically be increasing or decreasing the operation frequency of the compressor, and adjusting the rotation speed of the inner fan may specifically be increasing or decreasing the rotation speed of the inner fan. Specifically, the outdoor unit of the air conditioner can be loaded with a variable frequency compressor, so that the operating frequency of the compressor can be conveniently adjusted, the indoor unit is provided with a stepless variable frequency inner fan, and the inner fan has multiple rotating speeds, so that the rotating speed of the inner fan can be conveniently adjusted.

It should be noted that the relative humidity is outside the preset humidity range, and may include an upper limit value where the relative humidity is greater than the preset humidity range and a lower limit value where the relative humidity is less than the preset humidity range. When the relative humidity is too high or too low, discomfort can be caused to the user, which is not good for the user's health.

The control method of the air conditioner provided in the above-mentioned first aspect of the embodiments, when in the cooling operation state, the temperature requirement of a user can be met by acquiring a target temperature, the environmental parameter including relative humidity and the evaporation temperature, the dew point temperature under the current state is calculated according to the environmental parameter, by taking into account the humidity factor during the cooling process, when the relative humidity is outside the preset humidity range, adjusting the running frequency of the compressor and/or the rotating speed of the inner fan according to the environmental parameters, the evaporation temperature and the target temperature, so that the evaporation temperature falls into a preset temperature range, the preset temperature range is related to the dew point temperature, the dehumidification capacity can be effectively adjusted, therefore, the relative humidity reaches the preset humidity range, the humidity requirement of a user in the refrigeration process is met, the physical health of the user is facilitated, and the use comfort of the user is improved.

It should be noted that the total cooling capacity of the air conditioner is the sum of the latent heat and sensible heat, and the sensible heat refers to the amount of heat that an object needs to absorb or release when the temperature of the object is increased or decreased during heating or cooling without changing the original phase state of the object. The sensible heat makes people have obvious cold and hot change feeling, and is mainly related to the change of the environmental temperature. Latent heat refers to heat absorbed or released in a phase change process of a substance from one phase to another phase under the condition that the temperature is kept unchanged, the phase state of the substance is changed, for example, gas is changed into liquid, and latent heat is mainly related to the change of ambient humidity.

It can be understood that the operating frequency of the compressor and/or the rotating speed of the inner fan are/is adjusted, so that the evaporation temperature falls into a preset temperature range, the preset temperature range is determined according to the dew point temperature and a preset temperature compensation value, the relative humidity of the air in the current refrigeration operating state can be adjusted mainly by adjusting the proportion of the latent heat of the air conditioner in the refrigeration process to the total refrigeration amount, the relative humidity can reach the preset humidity range, the dehumidification amount is adjusted, and the humidity requirement of a user in the refrigeration process is met. It should be noted that, under the condition that the relative humidity is outside the preset humidity range, when the relative humidity falls into different humidity ranges, the preset temperature ranges of the corresponding evaporation temperatures may be different.

The control method of the air conditioner provided by the embodiment of the invention can be used for adjusting the operation frequency of the compressor and/or the rotating speed of the inner fan according to the environmental parameters, the evaporation temperature and the target temperature and increasing or reducing the dehumidification amount in the refrigerating operation process by considering the requirement of a user on the environmental humidity in the refrigerating operation process and adjusting the operation frequency of the compressor and/or the rotating speed of the inner fan according to the environmental parameters, the evaporation temperature and the target temperature when the relative humidity is out of a preset humidity range, so that the comfort requirement of the user on the environmental temperature can be met, the comfort requirement of the user on the environmental humidity can be met, and the good use experience of the user can be ensured.

As shown in fig. 2, in the control method of the air conditioner, the environmental parameter includes an indoor environmental temperature, the preset humidity range includes a first preset humidity as an upper limit value, and when the relative humidity is greater than the first preset humidity, the operation frequency of the compressor and/or the rotation speed of the inner fan is adjusted according to the environmental parameter, the evaporation temperature and the target temperature in step S130 so that the evaporation temperature falls within the preset temperature range, including but not limited to steps S210 to S230:

step S210: under the condition that the indoor environment temperature is greater than or equal to the sum of the target temperature and the first preset value, increasing the running frequency of the compressor so that the evaporation temperature is less than or equal to the difference between the dew point temperature and the preset temperature compensation value;

step S220: and under the condition that the indoor environment temperature is less than the sum of the target temperature and the first preset value, increasing the operating frequency of the compressor and reducing the rotating speed of the inner fan so as to enable the evaporation temperature to be less than or equal to the difference between the dew point temperature and the preset temperature compensation value.

It should be noted that the first preset humidity is used as an upper limit value of the preset humidity range, when the relative humidity is greater than the first preset humidity, it indicates that the current relative humidity is higher, and it needs to perform moderate dehumidification to ensure comfort, by increasing the operation frequency of the compressor, it is beneficial to improve the energy efficiency of the air conditioner while ensuring good refrigeration capacity, specifically, when the indoor environment temperature is greater than or equal to the sum of the target temperature and the first preset value, it indicates that the current indoor environment temperature is higher, and the requirement of user for cooling is more urgent, the operation frequency of the compressor is increased, thereby decreasing the evaporation temperature, making the evaporation temperature less than or equal to the difference between the dew point temperature and the preset temperature compensation value, being able to satisfy normal cold output and increase the dehumidification capacity, and ensure the high energy efficiency of the air conditioner, when the indoor environment temperature is less than the sum of the target temperature and the first preset value, the difference between the current indoor environment temperature and the target temperature is small, the increase of the dehumidification amount can be mainly considered at the moment, the effect of quick dehumidification can be achieved by increasing the operating frequency of the compressor and reducing the rotating speed of the inner fan, and the evaporation temperature is smaller than or equal to the difference between the dew point temperature and the preset temperature compensation value by reducing the evaporation temperature.

It should be noted that increasing the operating frequency of the compressor and decreasing the rotation speed of the inner fan can increase the ratio of latent heat in the total cooling capacity, i.e., increase the dehumidification capacity, so that the relative humidity is decreased to the preset humidity range, and the humidity comfort requirement of the user is met.

In this embodiment, be greater than first predetermined humidity when relative humidity, need dehumidify, the condition that satisfies the dehumidification is that indoor heat exchanger's surface temperature is less than dew point temperature, there is the heat transfer difference in the evaporation temperature of considering indoor heat exchanger and the surface temperature of heat exchanger, in order to guarantee to satisfy the dehumidification condition, need set up predetermined temperature compensation value and compensate, be less than or equal to dew point temperature and the difference of predetermined temperature compensation value when evaporation temperature, moisture condensation in the air is appeared, produce the condensation water, can reduce the relative humidity of air, make relative humidity fall into predetermined humidity range, guarantee user's dehumidification demand.

As shown in fig. 3, in the above-mentioned control method of the air conditioner, in case that the indoor ambient temperature is greater than or equal to the sum of the target temperature and the first preset value, increasing the operation frequency of the compressor in step S210 includes:

step S310: controlling the operating frequency of the compressor to increase the first frequency variation value according to the evaporating temperature and the dew point temperature.

It can be understood that, the first frequency variation value is related to the evaporating temperature and the dew point temperature, the first frequency variation value is fluctuated, the operating frequency of the compressor is also fluctuated, in the control process, if the currently set first frequency variation value is smaller, after the operating frequency of the compressor is controlled to increase the first frequency variation value, the compressor continuously operates for a period of time at the increased operating frequency, the evaporating temperature still does not meet the dehumidification condition, that is, the evaporating temperature is still greater than the difference between the dew point temperature and the preset temperature compensation value, the first frequency variation value can be properly increased, so that the operating frequency of the compressor becomes larger, and the dehumidification can be performed quickly.

It should be noted that the first frequency variation value is within a certain frequency variation value range, the operating frequency of the compressor is also within a certain frequency range, so that the reliability of the operation of the air conditioner can be ensured, and the specific value can be set according to the actual requirement, which is not specifically limited in the embodiment of the present invention.

It can be understood that, by gradually increasing the operating frequency of the compressor, the evaporating temperature can be less than or equal to the difference between the dew point temperature and the preset temperature compensation value, so as to meet the dehumidification requirement under the high humidity condition.

As shown in fig. 4, in the above-mentioned control method of the air conditioner, in case that the indoor ambient temperature is less than the sum of the target temperature and the first preset value, increasing the operation frequency of the compressor and decreasing the rotation speed of the inner fan in step S220 includes:

step S410: and controlling the running frequency of the compressor to increase the first frequency change value and controlling the rotating speed of the inner fan to decrease the first speed change value according to the evaporation temperature and the dew point temperature.

When the indoor environment temperature is less than the sum of the target temperature and the first preset value, the increased dehumidification capacity can be used as a main control target, control measures of increasing the operation frequency of the compressor and reducing the rotating speed of the inner fan are taken, the normal refrigeration requirement of a user can be met, meanwhile, dehumidification can be performed quickly, specifically, the operation frequency of the compressor is controlled according to the evaporation temperature and the dew point temperature to increase the first frequency change value and the rotating speed of the inner fan is controlled to reduce the first rotating speed change value, the evaporation temperature can be reduced, so that the evaporation temperature is less than or equal to the difference between the dew point temperature and the preset temperature compensation value, and the dehumidification requirement is met.

It should be noted that the first frequency variation value is related to the evaporating temperature and the dew point temperature, the first rotational speed variation value is also related to the evaporating temperature and the dew point temperature, the evaporation temperature can be rapidly lowered to satisfy the dehumidification condition by adjusting the first frequency variation value and the first rotation speed variation value, that is, the evaporating temperature is less than or equal to the difference between the dew point temperature and the preset temperature compensation value, specifically, if the currently set first frequency variation value and the first speed variation value are smaller, when the operation frequency of the compressor is controlled to increase the first frequency change value and the rotating speed of the inner fan is controlled to decrease the first rotating speed change value, the air conditioner continuously operates for a period of time, the evaporation temperature still does not meet the dehumidification condition, the first frequency variation value and the first speed variation value can be properly increased, so that the running frequency of the compressor is higher, the rotating speed of the inner fan is lower, and quick dehumidification can be realized.

It should be noted that the first frequency variation value is within a certain frequency variation value range, the first rotation speed variation value is within a certain rotation speed variation value range, the operation frequency of the compressor and the rotation speed of the internal fan are within an allowable working range of the air conditioner, and specific values may be set according to actual requirements, which is not specifically limited in the embodiment of the present invention.

It can be understood that, in the embodiment, by gradually increasing the operating frequency of the compressor and gradually decreasing the rotation speed of the inner fan, the evaporation temperature can be less than or equal to the difference between the dew point temperature and the preset temperature compensation value, so as to meet the dehumidification requirement under the high humidity condition.

As shown in fig. 5, in the above-mentioned control method of the air conditioner, the environmental parameter includes an indoor environmental temperature, the preset humidity range includes a second preset humidity as a lower limit value, and when the relative humidity is less than the second preset humidity, the operation frequency of the compressor and/or the rotation speed of the inner fan is adjusted according to the environmental parameter, the evaporation temperature and the target temperature in step S130 so that the evaporation temperature falls within the preset temperature range, including but not limited to step S510 and step S520:

step S510: under the condition that the indoor environment temperature is greater than or equal to the sum of the target temperature and a second preset value, the rotating speed of the inner fan is increased, so that the evaporation temperature is greater than or equal to the sum of the dew point temperature and a preset temperature compensation value;

step S520: and under the condition that the indoor environment temperature is less than the sum of the target temperature and the second preset value, increasing the rotating speed of the inner fan and reducing the operating frequency of the compressor so that the evaporation temperature is greater than or equal to the sum of the dew point temperature and the preset temperature compensation value.

It should be noted that the second preset humidity is used as a lower limit value of the preset humidity range, when the relative humidity is less than the second preset humidity, it indicates that the current relative humidity is relatively low, i.e. the air is relatively dry and not beneficial to human health, in addition, the low humidity environment is easy to breed bacteria, and it is necessary to reduce dehumidification to ensure user comfort and health, by increasing the rotation speed of the inner fan, the evaporation temperature can be increased, the dehumidification amount can be effectively reduced, and the energy consumption of the air conditioner in the refrigeration operation state can be reduced, so that the air conditioner is more energy-saving, specifically, when the indoor environment temperature is greater than or equal to the sum of the target temperature and the second preset value, it indicates that the current indoor environment temperature is relatively high, by increasing the rotation speed of the inner fan, a certain refrigeration effect can be ensured, and simultaneously the evaporation temperature can be increased, so that the evaporation temperature is greater than or equal to the sum of the dew point temperature and the preset temperature compensation value, the method has the advantages that the evaporation temperature is within the preset temperature range, normal cold output can be guaranteed, meanwhile, the dehumidification capacity is reduced, the energy efficiency of the air conditioner is improved, when the indoor environment temperature is smaller than the sum of the target temperature and the second preset value, the fact that the difference between the current indoor environment temperature and the target temperature is not large is shown, meanwhile, the current cold output is large, the dehumidification capacity is reduced mainly by considering at the moment, the operation frequency of a compressor can be reduced while the rotating speed of an inner fan is improved, the purpose of rapid dehumidification is achieved, and the evaporation temperature is larger than or equal to the sum of the dew point temperature and the preset temperature compensation value through improving the evaporation temperature.

It should be noted that, the rotation speed of the inner fan is increased, the operation frequency of the compressor is reduced, the ratio of latent heat in the total refrigerating capacity can be reduced, namely, the dehumidification capacity is reduced, so that the consumption capacity of the air conditioner mainly adjusts and processes sensible heat, the energy consumption can be effectively reduced, the high energy efficiency of the air conditioner is ensured, meanwhile, the relative humidity gradually reaches the preset humidity range, and the humidity comfort requirement of a user is met.

The existing air conditioner mainly uses the reduction of ambient temperature as the control objective in the refrigeration operation process, has partly ability to consume on handling latent heat, and the air conditioner is constantly dehumidifying promptly for the relative humidity of environment constantly descends, breeds the bacterium when relative humidity is too low easily, can bring adverse effect to human skin and respiratory track simultaneously, in addition, the dehumidification in-process needs the power consumption. Different from the control mode in the prior art, the embodiment of the invention can reduce dehumidification by considering the relative humidity in the refrigeration operation process and increasing the evaporation temperature when the relative humidity is less than the second preset humidity, so that the evaporation temperature is greater than or equal to the sum of the dew point temperature and the preset temperature compensation value, the dehumidification load of the air conditioner is reduced, the energy consumption can be effectively reduced, and the energy-saving and moisture-preserving effect can be realized.

It should be noted that, in the control method of the air conditioner, when the relative humidity is greater than the first preset humidity, the corresponding preset temperature range of the evaporation temperature is different from the corresponding preset temperature range of the evaporation temperature when the relative humidity is less than the second preset humidity, and the corresponding preset temperature compensation values may be the same or different.

As shown in fig. 6, in the above method for controlling an air conditioner, when the indoor ambient temperature is greater than or equal to the sum of the target temperature and the second preset value, the increasing the rotation speed of the inner fan in step S510 includes:

step S610: and controlling the rotating speed of the inner fan to increase the second rotating speed change value according to the evaporation temperature and the dew point temperature.

It should be noted that the second rotation speed variation value is related to the evaporation temperature and the dew point temperature, the evaporation temperature can be greater than or equal to the sum of the dew point temperature and the preset temperature compensation value by adjusting the second rotation speed variation value, the second rotation speed variation value is within a certain rotation speed variation value range, the specific value can be set according to the actual requirement, and the embodiment of the present invention is not limited specifically.

As shown in fig. 7, in the above method for controlling an air conditioner, in the case that the indoor ambient temperature is less than the sum of the target temperature and the second preset value, increasing the rotation speed of the inner fan and decreasing the operating frequency of the compressor in step S520 includes:

step S710: and controlling the rotating speed of the inner fan to increase a second rotating speed change value and controlling the running frequency of the compressor to decrease the second frequency change value according to the evaporation temperature and the dew point temperature.

It should be noted that the second rotation speed variation value is within a certain rotation speed variation value range, the second frequency variation value is within a certain frequency variation value range, the rotation speed of the internal fan and the operation frequency of the compressor are within the allowable working range of the air conditioner, and the specific values may be set according to actual requirements

As shown in fig. 8, in the above-mentioned control method of the air conditioner, the rotation speed of the inner fan is controlled to increase the second rotation speed variation value according to the evaporation temperature and the dew point temperature in step S610, which includes but is not limited to step S810 and step S820:

step S810: under the condition that the relative humidity is greater than the difference between the second preset humidity and the third preset humidity, controlling the rotating speed of the inner fan to increase a third rotating speed change value according to the evaporation temperature and the dew point temperature;

step S820: under the condition that the relative humidity is less than or equal to the difference between the second preset humidity and the third preset humidity, controlling the rotating speed of the inner fan to increase a fourth rotating speed change value according to the evaporation temperature and the dew point temperature; wherein the fourth rotational speed variation value is greater than the third rotational speed variation value.

It should be noted that when the relative humidity is less than the second predetermined humidity, a humidity judgment condition can be further set, when the indoor environment temperature is higher under the condition that the relative humidity is greater than the difference between the second preset humidity and the third preset humidity, the rotating speed of the inner fan is controlled according to the evaporation temperature and the dew point temperature to increase a third rotating speed change value, when the indoor ambient temperature is relatively high under the condition that the relative humidity is less than or equal to the difference between the second preset humidity and the third preset humidity, the rotating speed of the inner fan is controlled to increase the fourth rotating speed change value according to the evaporating temperature and the dew point temperature, and the fourth rotating speed change value is made to be larger than the third rotating speed change value, the rotating speed change value of the inner fan is adjusted under the condition of extremely low relative humidity to achieve the aim of keeping moisture as much as possible, the dehumidification capacity can be further reduced by making the rotating speed of the inner fan larger, and the effects of energy conservation and moisture preservation are achieved.

As shown in fig. 9, in the above-mentioned control method of the air conditioner, the step S710 of controlling the rotation speed of the inner fan to increase the second rotation speed variation value and controlling the operation frequency of the compressor to decrease the second frequency variation value according to the evaporation temperature and the dew point temperature includes, but is not limited to, the steps S910 and S920:

step S910: under the condition that the relative humidity is greater than the difference between the second preset humidity and the third preset humidity, controlling the rotating speed of the inner fan to increase a third rotating speed change value and controlling the operating frequency of the compressor to decrease a third frequency change value according to the evaporation temperature and the dew point temperature;

step S920: under the condition that the relative humidity is smaller than or equal to the difference between the second preset humidity and the third preset humidity, controlling the rotating speed of the inner fan to increase a fourth rotating speed change value and controlling the running frequency of the compressor to decrease the fourth frequency change value according to the evaporation temperature and the dew point temperature; and the fourth rotating speed change value is greater than the third rotating speed change value, and the fourth frequency change value is greater than the third frequency change value.

It should be noted that, when the relative humidity is less than the second preset humidity, a humidity determination condition may be further set, when the relative humidity is greater than a difference between the second preset humidity and the third preset humidity, and when the difference between the indoor ambient temperature and the target temperature is not great, the rotation speed of the inner fan is controlled to increase the third rotation speed variation value and the operation frequency of the compressor is controlled to decrease the third frequency variation value according to the evaporation temperature and the dew point temperature, and when the difference between the indoor ambient temperature and the target temperature is not great, the rotation speed of the inner fan is controlled to increase the fourth rotation speed variation value and the operation frequency of the compressor is controlled to decrease the fourth frequency variation value according to the evaporation temperature and the dew point temperature, and by making the fourth rotation speed variation value greater than the third rotation speed variation value, the fourth frequency variation value is greater than the third frequency variation value, the aim of keeping moisture as far as possible is achieved by adjusting the rotating speed change value of the inner fan and the frequency change value of the compressor under the condition that the relative humidity is particularly low, and the dehumidification capacity can be further reduced by enabling the rotating speed of the inner fan to be larger and the operating frequency of the compressor to be reduced more, so that the effects of saving energy and keeping moisture are achieved.

In the control method of the air conditioner, the method further includes:

and when the relative humidity is within the preset humidity range, normally controlling the running state of the air conditioner according to the target temperature and the indoor environment temperature.

It should be noted that, when the relative humidity is within the preset humidity range, which indicates that the user feels comfortable at the current relative humidity, the air conditioner operates according to the normal control logic, mainly considering the temperature requirement of the user, so that the indoor ambient temperature reaches the target temperature.

Specifically, if the indoor ambient temperature is greater than the target temperature, the operating frequency of the compressor may be increased, so as to increase the cooling output, and if the indoor ambient temperature is less than or equal to the target temperature, the operating frequency of the compressor may be appropriately decreased, and the specific control measure is not limited in the embodiment of the present invention.

In order to more clearly illustrate the control method of the air conditioner of the present invention, an overall embodiment will be further described below.

As shown in fig. 10, the control method of the air conditioner of the present invention is specifically as follows:

1. the air conditioner is in a refrigeration running state;

2. acquiring indoor environment temperature T, relative humidity RH, evaporation temperature Te and target temperature To;

3. calculating a dew point temperature Td; calculating dew point temperature according to indoor environment temperature and relative humidity;

4. comparing the magnitude of RH to RH 1; if RH > RH1, go to step 5; if RH is less than or equal to RH1, executing step 8; wherein RH1 is a first predetermined humidity;

5. comparing the magnitude of T To To +. DELTA.T 1; if T is more than or equal To To +. DELTA.T 1, executing step 6; if T < To +. DELTA.T 1, executing step 7; wherein, Δ T1 is a first preset value, and the value range of Δ T1 is as follows: delta T3 is more than or equal to 1 ℃ and less than 8 ℃, and the value of the embodiment is 3 ℃;

6. increasing the operating frequency of the compressor by F1 to ensure that Te is less than or equal to Td-delta T3; the operating frequency of the compressor is properly increased, the evaporation temperature is reduced, and dehumidification is carried out; wherein, F1 is a first frequency variation value; Δ T3 is a first temperature compensation value;

7. increasing the operating frequency of the compressor by F1, and reducing the rotating speed of the inner fan by RPM1 to ensure that Te is less than or equal to Td-delta T3; the evaporation temperature is reduced and dehumidification is carried out by properly increasing the running frequency of the compressor and reducing the rotating speed of the inner fan; wherein, F1 is a first frequency variation value; RPM1 is a first rotational speed change value; Δ T3 is a first temperature compensation value;

8. comparing the magnitude of RH to RH 2; if RH is greater than or equal to RH2, go to step 9; if RH < RH2, go to step 10; wherein RH2 is a second predetermined humidity;

9. normal control according To T and To; when the relative humidity is within a preset humidity range, namely RH belongs to [ RH2, RH1], and the control is normally carried out according to the indoor environment temperature and the target temperature;

10. comparing the magnitude of RH with RH2-RH 3; if RH > RH2-RH3, perform step 11; if RH is equal to or less than RH2-RH3, go to step 14; wherein RH3 is a third predetermined humidity;

11. comparing the magnitude of T To To +. DELTA.T 2; if T is more than or equal To To +. DELTA.T 2, executing step 12; if T < To +. DELTA.T 2, go To step 13; wherein Δ T2 is a second preset value;

12. increasing the rotating speed of the inner fan by RPM2 to ensure that Te is more than or equal to Td +. DELTA.T 4; the evaporation temperature is increased and dehumidification is reduced by properly increasing the rotating speed of the inner fan; wherein, RPM2 is a third rotating speed variation value, and Delta T4 is a second temperature compensation value;

13. the rotating speed of the inner fan is increased by RPM2, the operating frequency of the compressor is reduced by F2, and Te is enabled to be more than or equal to Td +. DELTA.T 4; the evaporation temperature is increased and dehumidification is reduced by properly increasing the rotating speed of the inner fan and reducing the operating frequency of the compressor; wherein, RPM2 is a third rotation speed variation value, F2 is a third frequency variation value, and Δ T4 is a second temperature compensation value;

14. comparing the magnitude of T To To +. DELTA.T 2; if T is more than or equal To To +. DELTA.T 2, executing step 15; if T < To +. DELTA.T 2, go To step 16; wherein Δ T2 is a second preset value;

15. increasing the rotating speed of the inner fan by RPM3 to ensure that Te is more than or equal to Td +. DELTA.T 4; the rotating speed of the inner fan is properly increased, the evaporation temperature is increased, the dehumidification is reduced, and the energy-saving and moisture-preserving effects are achieved; wherein RPM3 is a fourth rotating speed change value, Δ T4 is a second temperature compensation value, and RPM3 is greater than RPM 2;

16. the rotating speed of the inner fan is increased by RPM3, the operating frequency of the compressor is reduced by F3, and Te is enabled to be more than or equal to Td +. DELTA.T 4; the evaporation temperature is increased and the dehumidification is reduced by properly increasing the rotating speed of the inner fan and reducing the operating frequency of the compressor, so that the energy-saving and moisture-preserving effects are achieved; wherein RPM3 is a fourth rotating speed change value, F3 is a fourth frequency change value, DeltaT 4 is a second temperature compensation value, RPM3 is more than RPM2, and F3 is more than F2.

In this embodiment, the preset temperature compensation value includes a first temperature compensation value and a second temperature compensation value.

It should be noted that, the range of RH1 is 55% to RH < 100%, the range of RH2 is 30% to RH < 55%, and the range of Δ T1 is: the temperature delta T1 is more than or equal to 1 ℃ and less than 8 ℃, and the value range of delta T2 is as follows: the delta T2 is more than or equal to 1 ℃ and less than 8 ℃, and the value range of the delta T3 is as follows: the temperature delta T3 is more than or equal to 0 ℃ and less than 15 ℃, and the value range of delta T4 is as follows: the temperature delta T4 is more than or equal to 0 ℃ and less than 15 ℃, and the value range of F1 is as follows: f1 is more than or equal to 1Hz and less than 50Hz, and the value range of F2 is as follows: f2 is more than or equal to 1Hz and less than 30Hz, and the value range of F3 is as follows: f3 is more than or equal to 1Hz and less than 40Hz, and the value range of RPM1 is as follows: the RPM is more than or equal to 1RPM and is more than or equal to 1 and less than 20 percent of the maximum rotating speed, and the value range of the RPM2 is as follows: the value range of RPM (revolution speed) is more than or equal to 1RPM (revolution speed) 2 and less than 30 percent of the maximum rotation speed, and the value range of RPM3 is as follows: 1RPM is less than or equal to RPM3 and less than 40 percent of maximum rotation speed.

In this embodiment, RH1 takes a value of 65%, RH2 takes a value of 40%, Δ T1 takes a value of 3 ℃, Δ T2 takes a value of 3 ℃, Δ T3 takes a value of 7 ℃, Δ T4 takes a value of 2 ℃, and F1 takes a value range of: f1 is more than or equal to 1Hz and less than 20Hz, and the value range of F2 is as follows: f2 is more than or equal to 1Hz and less than 12Hz, and the value range of F3 is as follows: f3 is more than or equal to 1Hz and less than 15Hz, and the value range of RPM1 is as follows: 1RPM is not less than RPM1 and less than 200RPM, and the value range of RPM2 is as follows: the RPM is not less than 1RPM and is not less than 2 and less than 300RPM, and the value range of the RPM3 is as follows: 1RPM ≦ RPM3 < 350 RPM.

The control method of the air conditioner provided by this embodiment, when the relative humidity is within the preset humidity range, the air conditioner operates according to the normal control logic, when the relative humidity is greater than the first preset humidity, the dehumidification can be achieved by increasing the operating frequency of the compressor, by reducing the evaporation temperature, the relative humidity falls within the healthy and comfortable preset humidity range, particularly, when the indoor ambient temperature is not much different from the target temperature, the rotating speed of the inner fan can be reduced at the same time to achieve the effect of rapid dehumidification, when the relative humidity is less than the second preset humidity, the dehumidification can be reduced by increasing the rotating speed of the inner fan, by increasing the evaporation temperature, the relative humidity falls within the healthy and comfortable preset humidity range, particularly, when the difference between the indoor ambient temperature and the target temperature is not great, the dehumidification can be further reduced by decreasing the operating frequency of the compressor at the same time, when the relative humidity is particularly low, namely the relative humidity is smaller than or equal to the difference between the second preset humidity and the third preset humidity, the rotating speed change value of the inner fan and the frequency change value of the compressor can be increased, so that the rotating speed of the inner fan becomes larger, the running frequency of the compressor is reduced more, the purpose of moisturizing as much as possible is achieved, and the energy-saving moisturizing effect is favorably realized.

As shown in fig. 11, a second embodiment of the present invention provides an operation control device 1100, which includes at least one control processor 1110 and a memory 1120 for communication connection with the at least one control processor 1110; the control processor 1110 and the memory 1120 may be connected by a bus or other means, an example of which is shown in fig. 11 is connected by a bus, and the memory 1120 stores instructions executable by the at least one control processor 1110, the instructions being executed by the at least one control processor 1110 to enable the at least one control processor 1110 to perform the control method of the air conditioner according to the above first aspect embodiment, for example, to perform the above-described method steps S110 to S130 in fig. 1, method steps S210 and S220 in fig. 2, method step S310 in fig. 3, method step S410 in fig. 4, method steps S510 and S520 in fig. 5, method step S610 in fig. 6, method step S710 in fig. 7, method steps S810 and S820 in fig. 8, method steps S910 and S920 in fig. 9, and method step S10. When the compressor is in a refrigeration running state, the target temperature is obtained, the temperature requirement of a user can be met, the environment parameter and the evaporation temperature are obtained, the environment parameter comprises relative humidity, the dew point temperature of the current state is calculated according to the environment parameter, the humidity factor is considered in the refrigeration process, the relative humidity is out of a preset humidity range, the running frequency of the compressor and/or the rotating speed of an inner fan are adjusted according to the environment parameter, the evaporation temperature and the target temperature, the evaporation temperature is enabled to fall into the preset temperature range, the preset temperature range is related to the dew point temperature, the moisture removing amount can be effectively adjusted, the relative humidity is enabled to reach the inside of the preset humidity range, the humidity requirement of the user in the refrigeration process is met, the body health of the user is facilitated, and the use comfort of the user is improved.

An embodiment of a third aspect of the present invention provides an air conditioner including the operation control device as described above in the embodiment of the second aspect. When the air conditioner is in a refrigerating operation state, the temperature requirement of a user can be met by acquiring the target temperature, the environment parameter and the evaporation temperature are acquired, the environment parameter comprises the relative humidity, the dew point temperature in the current state is calculated according to the environment parameter, the humidity factor is considered in the refrigerating process, when the relative humidity is out of the preset humidity range, the operation frequency of the compressor and/or the rotating speed of the inner fan are/is adjusted according to the environment parameter, the evaporation temperature and the target temperature, the evaporation temperature falls into the preset temperature range, the preset temperature range is related to the dew point temperature, the dehumidification amount can be effectively adjusted, the relative humidity is enabled to reach the preset humidity range, the humidity requirement of the user in the refrigerating process is met, the body health of the user is facilitated, and the use comfort of the user is improved.

A fourth aspect embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions that may be used to cause a computer to perform the control method of an air conditioner as in the first aspect embodiment above, for example, performing the above-described method steps S110 to S130 in fig. 1, method steps S210 and S220 in fig. 2, method step S310 in fig. 3, method step S410 in fig. 4, method steps S510 and S520 in fig. 5, method step S610 in fig. 6, method step S710 in fig. 7, method steps S810 and S820 in fig. 8, method steps S910 and S920 in fig. 9, and method step S of fig. 10. When being in the refrigeration running state, through obtaining the target temperature, can satisfy user's temperature demand, through obtaining environmental parameter and evaporating temperature, the environmental parameter includes relative humidity, and calculate the dew point temperature under the current condition according to the environmental parameter, through considering the humidity factor in refrigeration process, be outside the humidity range of predetermineeing when relative humidity, according to the environmental parameter, evaporating temperature and target temperature adjust the operating frequency of compressor and/or the rotational speed of interior fan, make evaporating temperature fall into the temperature range of predetermineeing, it is relevant with dew point temperature to predetermine the temperature range, can effectively adjust except that the moisture capacity, thereby make relative humidity reach within the humidity range of predetermineeing, satisfy user's humidity demand in refrigeration process, be favorable to user's healthy, improve user's use travelling comfort.

It will be understood by those of ordinary skill in the art that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, or suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media or non-transitory media and communication media or transitory media. The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks, DVD, or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A control method of an air conditioner, characterized in that the control method comprises:

2. The control method according to claim 1, wherein the environmental parameter includes an indoor environmental temperature, the preset humidity range includes a first preset humidity as an upper limit value, and when the relative humidity is greater than the first preset humidity, the adjusting the operating frequency of the compressor and/or the rotation speed of the inner fan according to the environmental parameter, the evaporation temperature, and the target temperature so that the evaporation temperature falls within the preset temperature range includes:

3. The control method according to claim 2, wherein the increasing of the operating frequency of the compressor in the case where the indoor ambient temperature is greater than or equal to the sum of the target temperature and a first preset value includes:

4. The control method according to claim 2, wherein in the case where the indoor ambient temperature is less than the sum of the target temperature and a first preset value, the increasing of the operating frequency of the compressor and the decreasing of the rotation speed of the inner fan include:

5. The control method according to claim 1, wherein the environmental parameter includes an indoor ambient temperature, the preset humidity range includes a second preset humidity as a lower limit value, and when the relative humidity is less than the second preset humidity, the adjusting the operating frequency of the compressor and/or the rotation speed of the inner fan according to the environmental parameter, the evaporation temperature, and the target temperature so that the evaporation temperature falls within the preset temperature range includes:

6. The control method according to claim 5, wherein in the case where the indoor ambient temperature is greater than or equal to a sum of the target temperature and a second preset value, the increasing the rotation speed of the inner fan includes:

7. The control method according to claim 5, wherein in the case where the indoor ambient temperature is less than the sum of the target temperature and a second preset value, the increasing the rotation speed of the inner fan and the decreasing the operating frequency of the compressor comprise:

8. The control method according to claim 6, wherein the controlling the rotation speed of the inner fan to increase by a second rotation speed variation value according to the evaporation temperature and the dew point temperature includes:

under the condition that the relative humidity is greater than the difference between the second preset humidity and the third preset humidity, controlling the rotating speed of the inner fan to increase a third rotating speed change value according to the evaporation temperature and the dew point temperature;

under the condition that the relative humidity is smaller than or equal to the difference between the second preset humidity and the third preset humidity, controlling the rotating speed of the inner fan to increase a fourth rotating speed change value according to the evaporation temperature and the dew point temperature; wherein the fourth rotational speed variation value is greater than the third rotational speed variation value.

9. The control method according to claim 7, wherein the controlling the rotation speed of the inner fan to increase by a second rotation speed variation value and the operating frequency of the compressor to decrease by a second frequency variation value according to the evaporating temperature and the dew point temperature comprises:

under the condition that the relative humidity is larger than the difference between the second preset humidity and the third preset humidity, controlling the rotating speed of the inner fan to increase a third rotating speed change value and controlling the operating frequency of the compressor to decrease the third frequency change value according to the evaporation temperature and the dew point temperature;

10. An operation control device comprising at least one control processor and a memory for communicative connection with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the control method of any one of claims 1 to 9.

11. An air conditioner characterized by comprising the operation control device as claimed in claim 10.

12. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the control method according to any one of claims 1 to 9.