Dehumidification control method and device of air conditioner, air conditioner and storage medium

Abstract

The application discloses a dehumidification control method and device of an air conditioner, the air conditioner and a storage medium. The dehumidification control method comprises the following steps: obtaining temperature and humidity parameters of the air conditioner in a dehumidification mode; and controlling a dehumidification working state of the air conditioner according to the temperature and humidity parameters, so as to maintain the outlet air temperature of the air conditioner within a preset threshold range. In the embodiment of the application, the dehumidification working state of the air conditioner is controlled through the temperature and humidity parameters of the air conditioner in the dehumidification mode, so that the air conditioner can maintain a corresponding temperature when dehumidifying, and the situation of continuous temperature drop or sudden temperature drop does not occur, the use experience of the user can be improved, and thus the technical blank in the related method can be made up.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and in particular to a dehumidification control method and apparatus for an air conditioner, an air conditioner, and a computer-readable storage medium. Background Technology

[0002] Dehumidification is one of the main functions of air conditioners. To maintain a certain relative humidity in a room, excess water vapor in the air needs to be removed to achieve the dehumidification effect. However, when integrated air conditioners in related technologies use cooling mode for dehumidification, the room temperature drops continuously, causing a sudden decrease and resulting in a poor user experience. Therefore, how to prevent the air conditioner from cooling down during dehumidification has become a pressing technical problem to be solved. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a dehumidification control method and apparatus for an air conditioner, an air conditioner, and a computer-readable storage medium, which can maintain a corresponding temperature during dehumidification, thereby improving the user experience.

[0004] In a first aspect, embodiments of the present invention provide a dehumidification control method for an air conditioner, comprising:

[0005] Obtain the temperature and humidity parameters of the air conditioner in dehumidification mode;

[0006] The dehumidification operation of the air conditioner is controlled according to the temperature and humidity parameters to maintain the air outlet temperature of the air conditioner within a preset threshold range.

[0007] The technical solution of the first aspect of the present invention has at least one of the following advantages or beneficial effects:

[0008] When the air conditioner is in dehumidification mode, by acquiring the temperature and humidity parameters of the air conditioner in dehumidification mode, it is possible to further determine whether the temperature and humidity parameters of the air conditioner meet the relevant temperature and humidity conditions of dehumidification mode, that is, whether it can maintain the air conditioner's outlet air temperature within a preset threshold range. Then, the dehumidification working state of the air conditioner can be controlled according to the acquired temperature and humidity parameters, so that the controlled dehumidification working state of the air conditioner can maintain the air conditioner's outlet air temperature within the preset threshold range, preventing continuous cooling or sudden temperature drops, thereby improving the user experience and filling the technical gaps in related methods.

[0009] Optionally, in one embodiment of the present invention, before obtaining the temperature and humidity parameters of the air conditioner in dehumidification mode, the method further includes:

[0010] Control the air conditioner to enter dehumidification mode.

[0011] Optionally, in one embodiment of the present invention, the temperature and humidity parameters include a first indoor temperature and the outlet air temperature; controlling the dehumidification operation of the air conditioner according to the temperature and humidity parameters to maintain the outlet air temperature of the air conditioner within a preset threshold range includes:

[0012] The first indoor temperature and the outlet air temperature of the air conditioner in dehumidification mode are obtained;

[0013] The dehumidification operation of the air conditioner is controlled based on the difference between the first indoor temperature and the outlet air temperature and the first temperature difference threshold, so as to maintain the outlet air temperature of the air conditioner within the preset threshold range.

[0014] Optionally, in one embodiment of the present invention, the air conditioner includes a compressor, a first evaporator and a second evaporator connected in parallel between the inlet and outlet ends of the compressor, a first fan and a second fan respectively corresponding to the first evaporator and the second evaporator; the temperature and humidity parameters further include a first outdoor temperature; controlling the dehumidification operation state of the air conditioner based on the difference between the first indoor temperature and the outlet air temperature, and a first temperature difference threshold, to maintain the outlet air temperature of the air conditioner within a preset threshold range, includes one of the following:

[0015] When the difference between the first indoor temperature and the outlet air temperature is less than or equal to the first temperature difference threshold, the second fan is controlled to run at the rated speed.

[0016] When the difference between the first indoor temperature and the air outlet temperature is greater than the first temperature difference threshold, the dehumidification operation of the air conditioner is controlled according to the first outdoor temperature and the first indoor temperature to maintain the air outlet temperature of the air conditioner within the preset threshold range.

[0017] Optionally, in one embodiment of the present invention, the air conditioner further includes a fresh air damper device for introducing outdoor fresh air into the indoor air duct of the air conditioner, the fresh air damper device being disposed on one side of the second evaporator; the step of controlling the dehumidification operation state of the air conditioner according to the first outdoor temperature and the first indoor temperature to maintain the air outlet temperature of the air conditioner within a preset threshold range includes one of the following:

[0018] When the first outdoor temperature is less than or equal to the first indoor temperature, the fresh air damper is controlled to close.

[0019] When the first outdoor temperature is greater than the first indoor temperature, the fresh air door device is controlled to open.

[0020] Optionally, in one embodiment of the present invention, the dehumidification control method further includes:

[0021] Obtain the temperature parameters of the air conditioner in cooling mode;

[0022] The cooling operation of the air conditioner is controlled according to the temperature parameters.

[0023] Optionally, in one embodiment of the present invention, the temperature parameter includes a second outdoor temperature; controlling the cooling operation state of the air conditioner according to the temperature parameter includes:

[0024] The cooling operation state of the air conditioner is controlled based on the second outdoor temperature, the first temperature threshold, and the second temperature threshold.

[0025] Optionally, in one embodiment of the present invention, controlling the cooling operation state of the air conditioner based on the second outdoor temperature, the first temperature threshold, and the second temperature threshold includes one of the following:

[0026] When the second outdoor temperature is lower than the first temperature threshold, the air conditioner is controlled to enter the normal cooling mode.

[0027] When the second outdoor temperature is greater than the second temperature threshold, the air conditioner is controlled to enter the powerful cooling mode.

[0028] Wherein, the first temperature threshold is less than the second temperature threshold.

[0029] Secondly, embodiments of the present invention also provide a dehumidification control device, comprising:

[0030] At least one processor;

[0031] At least one memory for storing at least one program;

[0032] The dehumidification control method described above is implemented when at least one of the programs is executed by at least one of the processors.

[0033] Thirdly, embodiments of the present invention also provide an air conditioner, including: the dehumidification control device as described above.

[0034] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing a processor-executable program, which, when executed by a processor, is used to implement the dehumidification control method as described above.

[0035] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0036] The accompanying drawings are provided to further illustrate the technical methods of the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the technical methods of the present invention, but do not constitute a limitation on the technical methods of the present invention.

[0037] Figure 1 This is a flowchart of a dehumidification control method for an air conditioner provided in one embodiment of the present invention;

[0038] Figure 2 yes Figure 1 A flowchart prior to step S110 is provided in one embodiment;

[0039] Figure 3 yes Figure 2 A flowchart of step S130 is provided in one embodiment;

[0040] Figure 4 This is a schematic diagram illustrating the working principle of an air conditioner according to an embodiment of the present invention;

[0041] Figure 5 yes Figure 1 A flowchart of step S120 is provided in one embodiment;

[0042] Figure 6 yes Figure 5 A flowchart of step S122 is provided in one embodiment;

[0043] Figure 7 yes Figure 5 A flowchart of step S122 is provided in another embodiment;

[0044] Figure 8 yes Figure 7 A flowchart of step S1222 provided in one embodiment;

[0045] Figure 9 yes Figure 7 A flowchart of step S1222 is provided in another embodiment;

[0046] Figure 10 This is a flowchart of a dehumidification control method for an air conditioner provided in another embodiment of the present invention;

[0047] Figure 11 This is an execution flowchart of a dehumidification control method based on an embodiment of the present invention, which controls the dehumidification working state of an air conditioner;

[0048] Figure 12 This is a flowchart of a dehumidification control method for an air conditioner provided in another embodiment of the present invention;

[0049] Figure 13 yes Figure 12A flowchart of step S170 is provided in one embodiment;

[0050] Figure 14 yes Figure 13 A flowchart of step S172 provided in one embodiment;

[0051] Figure 15 This is an execution flowchart of a dehumidification control method based on an embodiment of the present invention, which controls the cooling operation state of an air conditioner;

[0052] Figure 16 This is a schematic diagram of a dehumidification control device provided in one embodiment of the present invention;

[0053] Figure 17 This is a schematic diagram of an air conditioner provided in one embodiment of the present invention. Detailed Implementation

[0054] To make the objectives, technical methods, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0055] It should be noted that although the flowchart shows a logical order, in some cases, the steps shown or described may be performed in a different order than that shown in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. For example, in the following embodiments, "first indoor temperature" and "second indoor temperature" respectively represent two indoor temperatures and are not necessarily used to describe a specific order or sequence between "first indoor temperature" and "second indoor temperature." Similarly, "first temperature difference threshold," "second temperature difference threshold," and "third temperature difference threshold" are used in the same way and will not be elaborated upon here.

[0056] This invention provides a dehumidification control method and apparatus for an air conditioner, an air conditioner, and a computer-readable storage medium. One embodiment of the dehumidification control method includes: acquiring temperature and humidity parameters of the air conditioner in dehumidification mode; and controlling the dehumidification operation state of the air conditioner based on the temperature and humidity parameters to maintain the air conditioner's outlet air temperature within a preset threshold range. In this embodiment, by acquiring the temperature and humidity parameters of the air conditioner in dehumidification mode, it is further determined whether the temperature and humidity parameters of the air conditioner meet the relevant temperature and humidity conditions in dehumidification mode, i.e., whether the air conditioner's outlet air temperature can be maintained within the preset threshold range. Therefore, the dehumidification operation state of the air conditioner can be controlled based on the acquired temperature and humidity parameters, so that the controlled dehumidification operation state of the air conditioner can maintain the air conditioner's outlet air temperature within the preset threshold range, preventing continuous cooling or sudden temperature drops, thus improving the user experience and filling a technical gap in related methods.

[0057] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0058] like Figure 1 As shown, Figure 1 This is a flowchart of a dehumidification control method for an air conditioner provided in an embodiment of the present invention. The dehumidification control method may include, but is not limited to, steps S110 to S120.

[0059] Step S110: Obtain the temperature and humidity parameters of the air conditioner in dehumidification mode;

[0060] Step S120: Adjust the dehumidification working state of the air conditioner according to the temperature and humidity parameters to maintain the air outlet temperature of the air conditioner in dehumidification mode within the preset threshold range.

[0061] In this step, while the air conditioner is in dehumidification mode, the temperature and humidity parameters of the air conditioner in dehumidification mode are acquired to further determine whether the temperature and humidity parameters of the air conditioner meet the relevant temperature and humidity conditions in dehumidification mode, that is, whether the air conditioner's outlet air temperature can be maintained within a preset threshold range. Then, the dehumidification working state of the air conditioner can be controlled according to the acquired temperature and humidity parameters, so that the controlled dehumidification working state of the air conditioner can maintain the air conditioner's outlet air temperature within the preset threshold range, preventing continuous cooling or sudden temperature drops, thereby improving the user experience and filling the technical gaps in related methods.

[0062] In one embodiment, the type, parameters, and functions of the air conditioner can be various, and are not limited here; for different air conditioners, the temperature and humidity parameters of the air conditioner in dehumidification mode can be different, and correspondingly, the specific method of controlling the dehumidification working state of the air conditioner according to the temperature and humidity parameters can also be different. However, it can be understood that no matter what kind of air conditioner it is, it can be applied to the dehumidification control method in steps S110 to S120.

[0063] In one embodiment, during dehumidification, an air conditioner may, but is not limited to, employ a front-exit airflow method, i.e., side air intake and front air outlet, increasing the airflow volume and delivery distance. This allows users to receive a comfortable breeze even when they are at one end of the room furthest from the air conditioner, thus further enhancing the user experience. Furthermore, the indoor evaporator is divided into two units, placed on either side, and includes two indoor air ducts and two cross-flow fan wheels for airflow distribution. Compared to the air outlet methods of integrated air conditioners in related technologies, which are mainly divided into top-outlet and side-outlet (where top-outlet means the air intake grille and air outlet frame are on the front panel of the machine, and the air outlet is at the top; side-outlet means the air intake grille and air outlet frame are on the front panel of the machine, and the air outlet is on the side), the above configuration increases the airflow volume and delivery distance, significantly improving the overall structural performance of the air conditioner. Since the basic principles of the above air conditioner are well known to those skilled in the art, and the inventor has already addressed this aspect in prior patents, further details are omitted.

[0064] In one embodiment, a compressor is a driven fluid machine that elevates low-pressure gas to high-pressure gas. It is an important part of an air conditioning refrigeration system. It draws in low-temperature, low-pressure refrigerant gas through a suction pipe, compresses it using a piston driven by a motor, and then discharges high-temperature, high-pressure refrigerant gas through a discharge pipe, providing power for the refrigeration cycle and thus realizing the refrigeration cycle of compression → condensation (heat release) → expansion → evaporation (heat absorption). Compressors are classified into piston compressors, screw compressors, centrifugal compressors, linear compressors, etc. The refrigeration and air conditioning industry uses five main types of compressors: reciprocating, screw, rotary, scroll, and centrifugal. Among them, reciprocating compressors are the most widely used in small and medium-sized commercial refrigeration systems. Screw compressors are mainly used in large commercial and industrial systems, rotary and scroll compressors are mainly used in residential and small-capacity commercial air conditioning units, and centrifugal compressors are widely used in air conditioning systems of large buildings. Various reciprocating compressors are generally classified according to the compressor housing form and the drive mechanism arrangement. Based on the housing form, they are divided into open, hermetic, and semi-hermetic compressors. Hermetic compressors are those where the entire compressor is housed within a single housing. Compressors can be classified into positive displacement compressors and dynamic compressors based on their operating principle. Positive displacement compressors are further divided into reciprocating compressors and rotary compressors; dynamic compressors are divided into axial flow compressors, centrifugal compressors, and mixed flow compressors. Currently, household refrigerators and air conditioners generally use positive displacement compressors, which can be further divided into reciprocating and rotary compressors. Reciprocating compressors use piston, crank, and connecting rod mechanisms or piston, crank, and slide tube mechanisms, while rotary compressors mostly use rolling rotor compressors. In commercial air conditioners, centrifugal, scroll, and screw compressors are more common. Based on application, compressors can also be classified into low back pressure, medium back pressure, and high back pressure compressors. Low back pressure compressors are generally used in household refrigerators and food freezers, medium back pressure compressors are generally used in beverage coolers and milk coolers, and high back pressure compressors are generally used in room air conditioners, dehumidifiers, and heat pumps.

[0065] In one embodiment, evaporation is a physical process of transforming a liquid into a gaseous state, and the evaporator is the object through which liquid substances are transformed into gaseous states. Evaporators are widely used in industry, with those applied in refrigeration systems being one type. The evaporator is a crucial component in refrigeration; low-temperature condensed liquid passes through the evaporator, exchanging heat with the surrounding air, vaporizing and absorbing heat to achieve a cooling effect. The evaporator mainly consists of two parts: a heating chamber and an evaporation chamber. The heating chamber provides the heat required for evaporation to the liquid, causing it to boil and vaporize, while the evaporation chamber completely separates the liquid and gas phases.

[0066] In one embodiment, the temperature and humidity parameters can be of various types in a specific scenario. Since the following embodiments will gradually describe the various temperature and humidity parameters, they will not be described in detail here.

[0067] In one embodiment, the preset threshold range can be determined by those skilled in the art based on specific application scenarios, practical experience, and other factors. For example, the two endpoints of the preset threshold range can be defined as 24°C and 26°C, respectively. In dehumidification mode, the air outlet temperature of the air conditioner will always be greater than or equal to 24°C and less than or equal to 26°C, regardless of how it changes.

[0068] In one embodiment, the air conditioner further includes a temperature sensing element disposed at the air outlet of the air conditioner. By obtaining the temperature of the air outlet in dehumidification mode output by the temperature sensing element, the air outlet temperature of the air conditioner can be obtained. In other words, by setting a temperature sensing element at the air outlet, the air outlet temperature of the air conditioner can be obtained in real time, thereby enabling real-time determination of whether the air outlet temperature of the air conditioner is within a preset threshold range.

[0069] In one embodiment, the temperature sensing element can be of various types, such as a platinum thin film temperature sensor. Depending on the application range, the sensor is divided into four main types for ultra-low temperature measurement (starting from -196°C), low temperature measurement (up to +400°C), medium temperature measurement (up to +600°C), and high temperature measurement (up to +1000°C). However, this embodiment only requires room temperature measurement.

[0070] like Figure 2 As shown in the embodiment of the present invention, the steps before step S110 are further described. Step S110 may include, but is not limited to, step S130.

[0071] Step S130: Control the air conditioner to enter dehumidification mode.

[0072] In this step, the air conditioner is pre-controlled to enter dehumidification mode, which allows it to operate stably in dehumidification mode. This facilitates the acquisition of temperature and humidity parameters of the air conditioner in dehumidification mode in subsequent steps. In other words, the acquired temperature and humidity parameters are those obtained after the air conditioner has been running stably in dehumidification mode for a period of time, resulting in higher accuracy of the acquired temperature and humidity parameters.

[0073] In one embodiment, the air conditioner can be set with multiple operating modes, such as dehumidification mode, cooling mode, or defrosting mode. These modes can be manually controlled or automatically controlled, such as the "dehumidification mode," "cooling mode," and "defrosting mode" displayed on the air conditioner remote control. When the user presses the "dehumidification mode" button, the air conditioner is controlled to enter the "dehumidification mode." Alternatively, a timer can be preset, and when the timer expires, the air conditioner will automatically enter the "dehumidification mode" according to the preset program. It should be noted that the relevant embodiments of the present invention are only analyzed and studied for related application modes, but should not be construed as limiting the present embodiments. That is to say, the application mode of the air conditioner can also be selected in the corresponding specific scenarios. For example, "dehumidification mode" and "cooling mode" can be selected simultaneously, which is not limited here.

[0074] like Figure 3 As shown, in one embodiment of the present invention, where the air conditioner includes a compressor, a first evaporator, a second evaporator, a first throttling element, a second throttling element, a first fan, and a second fan, with the first and second evaporators connected in parallel between the exhaust end and the intake end of the compressor, the first throttling element correspondingly connected to the first evaporator, the second throttling element correspondingly connected to the second evaporator, the first fan used to improve the heat exchange efficiency of the first evaporator, and the second fan used to improve the heat exchange efficiency of the second evaporator, step S130 is further described. Step S130 may include, but is not limited to, steps S131 to S132.

[0075] Step S131: Control the first throttling element to open, and control the second throttling element to close;

[0076] Step S132: Control the first fan to run at a first speed and the second fan to run at a second speed, wherein the first speed is greater than the second speed.

[0077] In this step, under dehumidification mode, the first evaporator participates in the dehumidification cycle, while the second evaporator does not. The opening of the second throttling element is adjusted to 0. At this time, the air conditioner operates with the condenser in conjunction with the first evaporator. The first fan on the first evaporator side is normally on, while the fan on the second evaporator side is running at low speed. This allows the air passing through the first and second evaporators to mix within the internal air duct, preventing the air conditioner's outlet temperature from dropping too low. Furthermore, by adjusting the opening of the first throttling element, the air conditioner achieves a relatively large dehumidification capacity and energy savings.

[0078] In one embodiment, the types of the first throttling element and the second throttling element are not limited and can be selected according to the specific scenario. For example, they can be expansion valves, float valves, etc. of the corresponding type. The first speed can be set to the rated speed of the first fan, or can be set by the user according to the specific situation. The second speed can be set according to the specific value of the first speed, and there is no limitation here.

[0079] In one embodiment, the working principle of the air conditioner is as follows: Figure 4 As shown, in Figure 4 In this configuration, the first throttling element is an electronic expansion valve 1, and the second throttling element is an electronic expansion valve 2. Electronic expansion valve 1 is connected to the first evaporator on the branch corresponding to the first evaporator, and electronic expansion valve 2 is connected to the second evaporator on the branch corresponding to the second evaporator. The refrigerant flowing from the compressor passes through the condenser or the outdoor heat exchanger (i.e.,...). Figure 4 The air is processed by the symbol "C" shown in the figure, and then enters each evaporator after being throttled by the parallel electronic expansion valves. Finally, it returns to the intake end of the compressor. During this process, the compressor speed is adjusted to a relatively low level to cooperate with the opening of the electronic expansion valve 1, so that it can achieve a large dehumidification capacity and achieve energy saving.

[0080] In one embodiment, the condenser is a component of a refrigeration system, a type of heat exchanger, that converts gas or vapor into liquid, rapidly transferring heat from the pipes to the surrounding air. The condenser operation is exothermic and occurs at relatively high temperatures. Besides applications in air conditioners, power plants use numerous condensers to condense turbine exhaust vapors, refrigeration plants use condensers to condense refrigerant vapors such as ammonia and Freon, and the petrochemical industry uses condensers to condense hydrocarbons and other chemical vapors.

[0081] In one embodiment, the basic principle of air conditioning cooling is achieved through the following processes according to the components and functions of the refrigeration cycle system: starting from the compressor, refrigerant gas enters the compressor at low temperature and low pressure, is compressed in the compressor to increase its pressure and temperature, and then is discharged into the condenser; the high-temperature, high-pressure gas discharged from the compressor enters the condenser, transfers heat to the outside air or cooling water, and condenses into liquid refrigerant, which flows to the first and second throttling elements. That is, the refrigerant liquid flowing out of the condenser flows to the first and second throttling elements under high pressure for throttling and pressure reduction. Then, the low-pressure refrigerant liquid flowing out of the first and second throttling elements flows to the evaporator, absorbs heat from the outside (air or water) and evaporates into gas, thereby lowering the temperature of the outside (air or water). The evaporated low-temperature, low-pressure gas is then drawn back by the compressor for recompression, condensation, throttling, and evaporation, continuously cycling and cooling in sequence.

[0082] In one embodiment, the air conditioner may be, but is not limited to, a cooling-only type air conditioner, which mainly consists of a compressor, condenser, dryer filter, capillary tube and evaporator, etc. The ambient temperature range applicable to the cooling-only type air conditioner is 18℃~43℃.

[0083] In one embodiment of the present invention, when the temperature and humidity parameters include a first indoor temperature and an outlet air temperature, step S120 is further described. Step S120 may include, but is not limited to, steps S121 to S122.

[0084] Step S121: Obtain the first indoor temperature and air outlet temperature of the air conditioner;

[0085] Step S122: Control the dehumidification operation of the air conditioner according to the difference between the first indoor temperature and the outlet air temperature and the first temperature difference threshold, so as to maintain the outlet air temperature of the air conditioner within the preset threshold range.

[0086] In this step, the first indoor temperature and the air outlet temperature of the air conditioner in dehumidification mode are obtained to obtain the difference between the first indoor temperature and the air outlet temperature. Since the difference between the first indoor temperature and the air outlet temperature can be used to characterize the change in indoor temperature of the air conditioner in dehumidification mode, the dehumidification working state of the air conditioner can be further controlled according to the change in indoor temperature and the first temperature difference threshold to maintain the air outlet temperature of the air conditioner within the preset threshold range.

[0087] In one embodiment, the first temperature difference threshold can be set according to the specific application scenario, and there is no limitation here.

[0088] like Figure 6 As shown in the figure, in one embodiment of the present invention, step S122 is further described. Step S122 may include, but is not limited to, step S1221.

[0089] Step S1221: In response to the difference between the first indoor temperature and the outlet air temperature being less than or equal to the first temperature difference threshold, control the second fan to operate at a third speed, wherein the third speed is greater than the second speed.

[0090] In this step, if the difference between the first indoor temperature and the outlet air temperature is determined to be less than or equal to the first temperature difference threshold, it indicates that the heat exchange efficiency of the current evaporator does not meet the preset requirements. Since the first fan corresponding to the first evaporator is already running normally at the first speed, the speed of the second fan corresponding to the second evaporator can be increased to increase the air volume, thereby increasing the outlet air temperature of the air conditioner and maintaining the outlet air temperature of the air conditioner within the preset threshold range.

[0091] In one embodiment, the third rotational speed can be set according to the specific value of the second rotational speed, and there is no limitation here.

[0092] like Figure 7 As shown, in one embodiment of the present invention, when the temperature and humidity parameters also include the first outdoor temperature, step S122 is further described. Step S122 may include, but is not limited to, step S1222.

[0093] Step S1222: In response to the difference between the first indoor temperature and the outlet air temperature being greater than the first temperature difference threshold, the dehumidification working state of the air conditioner is controlled according to the first outdoor temperature and the first indoor temperature to maintain the outlet air temperature of the air conditioner within the preset threshold range.

[0094] In this step, if the difference between the first indoor temperature and the outlet air temperature is determined to be greater than the first temperature difference threshold, it indicates that the heat exchange efficiency of the evaporator has reached the preset requirement. However, it is still necessary to control the dehumidification status of the air conditioner according to the first outdoor temperature and the first indoor temperature to determine whether it is necessary to further provide air volume to the air conditioner in subsequent steps to increase the outlet air temperature of the air conditioner, thereby maintaining the outlet air temperature of the air conditioner within the preset threshold range.

[0095] like Figure 8 As shown in one embodiment of the present invention, when the air conditioner further includes a fresh air damper device for sending fresh outdoor air into the indoor air duct of the air conditioner, and the fresh air damper device is disposed on the side of the second evaporator, step S1222 is further described. Step S1222 may include, but is not limited to, step S12221.

[0096] Step S12221: In response to the fact that the difference between the first indoor temperature and the outlet air temperature is greater than the first temperature difference threshold, and the first outdoor temperature is less than or equal to the first indoor temperature, the fresh air damper is controlled to close so as to maintain the outlet air temperature of the air conditioner within the preset threshold range.

[0097] In this step, since the air conditioner is equipped with a fresh air damper device for sending fresh outdoor air into the indoor air duct of the air conditioner, and the fresh air damper device is located on the side of the second evaporator, when the first outdoor temperature is greater than the first indoor temperature, that is, when the air conditioner's outlet temperature is relatively low, the fresh air damper device on the side of the second evaporator can be opened, so that the incoming high-temperature air mixes with the dehumidified low-temperature air to achieve the purpose of raising the temperature of the air conditioner's outlet, so as to maintain the air conditioner's outlet temperature within the preset threshold range.

[0098] In one embodiment, the air conditioner includes a fresh air damper device disposed on one side of the second evaporator, and a fresh air damper device is disposed in the indoor air duct to deliver outdoor fresh air into the room by means of a corresponding fresh air motor control switch.

[0099] like Figure 9As shown in one embodiment of the present invention, when the air conditioner further includes a fresh air damper device for sending fresh outdoor air into the indoor air duct of the air conditioner, and the fresh air damper device is disposed on the side of the second evaporator, step S1222 is further described. Step S1222 may include, but is not limited to, step S12222.

[0100] Step S12222: In response to the fact that the difference between the first indoor temperature and the outlet air temperature is greater than the first temperature difference threshold, and the first outdoor temperature is greater than the first indoor temperature, the fresh air damper is controlled to open to maintain the outlet air temperature of the air conditioner within the preset threshold range.

[0101] In this step, when the first outdoor temperature is less than or equal to the first indoor temperature, it means that the air outlet temperature of the air conditioner is at a relatively normal level. Therefore, it is not necessary to send in fresh outdoor air through the fresh air damper device. That is, the fresh air damper device on the second evaporator side is closed to maintain the air outlet temperature of the air conditioner within the preset threshold range.

[0102] like Figure 10 As shown, in one embodiment of the present invention, when the temperature and humidity parameters include indoor humidity and preset operating humidity, the dehumidification control method further includes, but is not limited to, steps S140 to S150.

[0103] Step S140: Obtain the indoor humidity and preset operating humidity of the air conditioner in dehumidification mode;

[0104] Step S150: When the absolute value of the difference between the indoor humidity and the preset operating humidity is less than the humidity difference threshold, control the air conditioner to exit the dehumidification mode.

[0105] In this step, the indoor humidity in dehumidification mode is obtained and compared with the preset operating humidity. The absolute value of the difference between the indoor humidity and the preset operating humidity is calculated to determine how much the difference is, or whether the indoor temperature has reached the standard of the preset operating humidity. When the absolute value of the difference between the indoor humidity and the preset operating humidity is less than the humidity difference threshold, it means that the indoor temperature has reached the required humidity condition. At this time, dehumidification is no longer necessary, and the air conditioner is controlled to exit the dehumidification mode to ensure that the air conditioner enters a good operating state and achieves the purpose of energy saving.

[0106] The following is a specific example to illustrate the working principle of the above embodiments.

[0107] Example 1:

[0108] like Figure 11 As shown, Figure 11It is an execution flow chart for controlling the dehumidification working state of an air conditioner based on a dehumidification control method provided by an embodiment of the present invention, wherein the flow is automatically executed according to corresponding temperature and humidity parameters, or can also be executed manually. The meanings of the relevant parameters are as follows:

[0109] T3 is the air outlet temperature of the air conditioner, T1 is the indoor temperature of the air conditioner, motor 2 is the motor corresponding to the second fan, T4 is the outdoor temperature, H1 is the indoor humidity, and HS is the humidity set by the air conditioner.

[0110] The flow is executed according to the following steps:

[0111] First, the automatic dehumidification mode is activated, and the dehumidification working state of the air conditioner is controlled according to the temperature and humidity parameters;

[0112] Then, the relationship between T3 and T1 is determined. If T1 - T3 < 2, the rotating speed of the motor 2 is increased to increase the air volume of the indoor air duct; if T1 - T3 > 2, the relationship between T4 and T1 is further determined. When T4 < T1, the fresh air damper device is selected to be kept closed and not opened; otherwise, the fresh air damper device is opened;

[0113] The above determination process is repeated. During the determination process, the detection of H1 and HS is accompanied, and whether the preset condition of |H1 - HS| < 3 is satisfied is detected; until the condition of |H1 - HS| < 3 is satisfied, the automatic dehumidification mode is exited at this time.

[0114] It can be seen from the above example that when the air conditioner is in the dehumidification mode, by acquiring the temperature and humidity parameters of the air conditioner in the dehumidification mode, it is further determined whether the temperature and humidity parameters of the air conditioner meet the relevant temperature and humidity conditions in the dehumidification mode, that is, whether the air outlet temperature of the air conditioner can be maintained within the preset threshold range, so that the dehumidification working state of the air conditioner can be controlled according to the acquired temperature and humidity parameters, so that the dehumidification working state of the controlled air conditioner can maintain the air outlet temperature of the air conditioner within the preset threshold range, without continuous temperature reduction or sudden temperature drop, which can improve the user's use experience and thus fill the technical gap in the related art.

[0115] As Figure 12 shows, in an embodiment of the present invention, the dehumidification control method further includes, but is not limited to, steps S160 to S170.

[0116] Step S160: Acquire temperature parameters of the air conditioner in the cooling mode;

[0117] Step S170: Control the cooling working state of the air conditioner according to the temperature parameters.

[0118] In this step, while the air conditioner is in cooling mode, the temperature parameters of the air conditioner in cooling mode are obtained to further determine whether the temperature parameters of the air conditioner meet the relevant temperature conditions in cooling mode. Then, the cooling operation status of the air conditioner can be controlled according to the obtained temperature parameters so that the controlled cooling operation status of the air conditioner meets the relevant requirements, thereby improving the user experience.

[0119] like Figure 13 As shown, in one embodiment of the present invention, when the temperature parameter includes a second outdoor temperature, step S170 is further described. Step S170 includes, but is not limited to, steps S171 to S172.

[0120] Step S171: Obtain the second outdoor temperature of the air conditioner in cooling mode;

[0121] Step S172: Control the cooling operation state of the air conditioner according to the second outdoor temperature, the first temperature threshold and the second temperature threshold.

[0122] In this step, since the second outdoor temperature can be used to characterize the actual cooling environment faced by the air conditioner, the cooling operation state of the air conditioner can be controlled based on the actual value of the second outdoor temperature and the further comparison results of the first temperature threshold and the second temperature threshold, so that the controlled cooling operation state of the air conditioner can meet the relevant requirements, thereby improving the user experience.

[0123] In one embodiment, the first temperature threshold and the second temperature threshold can be set according to the specific application scenario, and are not limited here.

[0124] In one embodiment of the present invention, step S172 is further described, and step S172 includes, but is not limited to, one of the following:

[0125] When the second outdoor temperature is lower than the first temperature threshold, the air conditioner is controlled to enter normal cooling mode.

[0126] When the second outdoor temperature is greater than the second temperature threshold, the air conditioner is controlled to enter the strong cooling mode.

[0127] The first temperature threshold is less than the second temperature threshold.

[0128] In this step, if the second outdoor temperature is determined to be lower than the first temperature threshold, it means that the outdoor temperature is not very high, that is, the temperature difference between indoors and outdoors is not very large. Therefore, in this case, it is only necessary to control the air conditioner to enter the normal cooling mode so that the air conditioner's cooling operation meets the requirements. If the second outdoor temperature is determined to be higher than the first temperature threshold, it means that the outdoor temperature is relatively high, that is, the temperature difference between indoors and outdoors is relatively large. Therefore, in this case, it is necessary to control the air conditioner to enter the strong cooling mode to cool down the air conditioner so that the air conditioner's cooling operation meets the requirements.

[0129] like Figure 14 As shown, in one embodiment of the present invention, when the temperature parameters include a second indoor temperature and a preset operating temperature, step S172 is further described. Step S172 includes, but is not limited to, step S1721.

[0130] Step S1721: When the second outdoor temperature is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, control the cooling operation state of the air conditioner according to the absolute value of the difference between the second indoor temperature and the preset operating temperature, the second temperature difference threshold, and the third temperature difference threshold.

[0131] In this step, if the second outdoor temperature is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, it indicates that the temperature difference between indoors and outdoors is relatively small and tends to be stable. At this time, how to cool the air conditioner needs to be further judged based on the second indoor temperature and the preset operating temperature of the air conditioner. That is, based on the absolute value of the difference between the second indoor temperature and the preset operating temperature, the second temperature difference threshold, and the third temperature difference threshold, the cooling working state of the air conditioner is controlled so that the controlled cooling working state of the air conditioner can meet the relevant requirements, thereby improving the user experience.

[0132] In one embodiment, the second temperature difference threshold and the third temperature difference threshold can be set according to the specific application scenario, and are not limited here.

[0133] In one embodiment of the present invention, step S1721 is further described, and step S1721 includes, but is not limited to, one of the following:

[0134] When the absolute value of the difference between the second indoor temperature and the preset operating temperature is greater than or equal to the second temperature difference threshold and less than or equal to the third temperature difference threshold, the air conditioner is controlled to enter the normal cooling mode.

[0135] When the absolute value of the difference between the second indoor temperature and the preset operating temperature is greater than the third temperature difference threshold, the air conditioner is controlled to enter the strong cooling mode.

[0136] When the absolute value of the difference between the second indoor temperature and the preset operating temperature is less than the second temperature difference threshold, the air conditioner is controlled not to cool.

[0137] The second temperature difference threshold is less than the third temperature difference threshold.

[0138] In this step, if the absolute value of the difference between the second indoor temperature and the preset operating temperature is greater than or equal to the second temperature difference threshold and less than or equal to the third temperature difference threshold, it indicates that the difference between the second indoor temperature and the preset operating temperature is small. Therefore, it is sufficient to control the air conditioner to enter the normal cooling mode to achieve cooling. If the absolute value of the difference between the second indoor temperature and the preset operating temperature is greater than the third temperature difference threshold, it indicates that the difference between the second indoor temperature and the preset operating temperature is large. Therefore, the air conditioner is controlled to enter the powerful cooling mode to achieve cooling, so that the cooling operation of the air conditioner meets the relevant requirements, thereby improving the user experience. If the absolute value of the difference between the second indoor temperature and the preset operating temperature is greater than the third temperature difference threshold, it indicates that the second indoor temperature and the preset operating temperature are basically at the same level. Therefore, it is not necessary to adjust the second indoor temperature, i.e., the air conditioner is controlled not to cool.

[0139] One embodiment of the present invention further describes the "controlling the air conditioner to enter normal cooling mode" in the above embodiments, which includes, but is not limited to:

[0140] Control the first throttling element to open, the second throttling element to close, and control the first fan to run at a first speed and the second fan to not run.

[0141] In this step, the normal cooling mode requires a small cooling capacity. At this time, the first evaporator participates in the cooling cycle, while the second evaporator does not. The opening of the second throttling element is adjusted to 0. At this time, the air conditioner is in the case of a large condenser and a small evaporator. At this time, the motor corresponding to the second fan on the side of the second evaporator is turned off, while the motor corresponding to the first fan on the side of the first evaporator is turned on normally. By reducing the speed of the compressor, the purpose of outputting a small cooling capacity and saving energy is achieved.

[0142] One embodiment of the present invention further describes the "controlling the air conditioner to enter the powerful cooling mode" in the above embodiments, which includes, but is not limited to:

[0143] Control the opening of the first throttling element and the second throttling element, and control the first fan and the second fan to run at the first speed.

[0144] In this step, the strong cooling mode requires a large cooling capacity. At this time, both the first evaporator and the second evaporator participate in the refrigeration cycle, and the opening degrees of the first throttle element and the second throttle element are adjusted to certain opening degrees; the air conditioner at this time is in a state where the heat exchange areas of the two evaporators are normally matched, and both the motor corresponding to the first fan and the motor corresponding to the second fan are normally turned on and set to a high rotating speed, and the rotating speed of the compressor is increased to achieve the purpose of outputting a large cooling capacity.

[0145] It should be noted that the dehumidification control and the cooling control in the above embodiments can be performed simultaneously, which will not have additional influence on the process judgment of respective control. That is to say, those skilled in the art can select the specific implementation of the dehumidification control method for the air conditioner of the embodiments of the present invention according to specific scenarios, which is not limited herein.

[0146] Another specific example is given below to illustrate the working principles of the foregoing embodiments.

[0147] Example 2:

[0148] As shown in Figure 15 , Figure 15 it is an execution flow chart of controlling the cooling working state of the air conditioner based on the dehumidification control method provided by an embodiment of the present invention, wherein the flow is automatically executed according to corresponding temperature parameters, or can also be executed manually, and the meanings of related parameters are as follows:

[0149] TS is the preset temperature of the air conditioner, T1 is the indoor temperature of the air conditioner, and T4 is the outdoor temperature.

[0150] The flow is executed according to the following steps:

[0151] First, turn on the automatic cooling mode, and control the cooling working state of the air conditioner according to the temperature parameters;

[0152] Then, judge the magnitude relationship between T4 and the corresponding threshold:

[0153] if T4 < a, control the air conditioner to enter the normal cooling mode;

[0154] if T4 > b, control the air conditioner to enter the strong cooling mode;

[0155] if a < T4 < b, further determine the difference relationship between TS and T1, specifically:

[0156] when 1 < T1 - TS < c, control the air conditioner to enter the normal cooling mode, wherein c > 1;

[0157] when T1 - TS > c, control the air conditioner to enter the strong cooling mode;

[0158] When IT1-TSI<1, the air conditioner will not cool.

[0159] Repeat the above determination process, during which the difference between TS and T1 is detected in real time, that is, whether the preset condition IT1-TSI<1 is met; until the condition IT1-TSI<1 is met, at which point the automatic cooling mode is exited.

[0160] As can be seen from the above example, when the air conditioner is in cooling mode, by acquiring the temperature parameters of the air conditioner in cooling mode, it is possible to further determine whether the temperature parameters of the air conditioner meet the relevant temperature conditions in cooling mode. In turn, the cooling operation state of the air conditioner can be controlled according to the acquired temperature parameters, so that the controlled cooling operation state of the air conditioner can meet the relevant requirements, thereby improving the user experience.

[0161] In addition, such as Figure 16 As shown, an embodiment of the present invention also discloses a dehumidification control device 100, comprising: at least one processor 110; at least one memory 120 for storing at least one program; and implementing the dehumidification control method as described in the preceding embodiments when the at least one program is executed by the at least one processor 110.

[0162] In addition, such as Figure 17 As shown, one embodiment of the present invention also discloses an air conditioner 200, comprising: as Figure 16 The dehumidification control device 100 shown.

[0163] In addition, one embodiment of the present invention discloses a computer-readable storage medium storing computer-executable instructions for performing the dehumidification control method as described in any of the preceding embodiments.

[0164] Furthermore, one embodiment of the present invention discloses a computer program product, including a computer program or computer instructions, which are stored in a computer-readable storage medium. A processor of a computer device reads the computer program or computer instructions from the computer-readable storage medium and executes the computer program or computer instructions, causing the computer device to perform the dehumidification control method as described in any of the preceding embodiments.

[0165] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can 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 can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

Claims

1. A dehumidification control method for an air conditioner, characterized in that, The air conditioner includes a compressor, a first evaporator and a second evaporator connected in parallel between the air inlet and air outlet of the compressor, and a first fan and a second fan respectively corresponding to the first evaporator and the second evaporator. The dehumidification control method includes: The temperature and humidity parameters of the air conditioner in dehumidification mode are obtained; the temperature and humidity parameters include a first indoor temperature, a first outdoor temperature, and an outlet air temperature. When the difference between the first indoor temperature and the outlet air temperature is less than or equal to the first temperature difference threshold, the second fan is controlled to run at the rated speed. When the difference between the first indoor temperature and the air outlet temperature is greater than the first temperature difference threshold, the dehumidification operation of the air conditioner is controlled according to the first outdoor temperature and the first indoor temperature to maintain the air outlet temperature of the air conditioner within the preset threshold range.

2. The dehumidification control method according to claim 1, characterized in that, Before obtaining the temperature and humidity parameters of the air conditioner in dehumidification mode, the method further includes: Control the air conditioner to enter dehumidification mode.

3. The dehumidification control method according to claim 1, characterized in that, The air conditioner further includes a fresh air damper device for introducing outdoor fresh air into the indoor air duct of the air conditioner, the fresh air damper device being disposed on one side of the second evaporator; the step of controlling the dehumidification operation state of the air conditioner according to the first outdoor temperature and the first indoor temperature to maintain the air outlet temperature of the air conditioner within a preset threshold range includes one of the following: When the first outdoor temperature is less than or equal to the first indoor temperature, the fresh air damper is controlled to close. When the first outdoor temperature is greater than the first indoor temperature, the fresh air door device is controlled to open.

4. The dehumidification control method according to claim 1, characterized in that, The dehumidification control method further includes: Obtain the temperature parameters of the air conditioner in cooling mode; The cooling operation of the air conditioner is controlled according to the temperature parameters.

5. The dehumidification control method according to claim 4, characterized in that, The temperature parameter includes a second outdoor temperature; controlling the cooling operation of the air conditioner according to the temperature parameter includes: The cooling operation state of the air conditioner is controlled based on the second outdoor temperature, the first temperature threshold, and the second temperature threshold.

6. The dehumidification control method according to claim 5, characterized in that, The step of controlling the cooling operation state of the air conditioner based on the second outdoor temperature, the first temperature threshold, and the second temperature threshold includes one of the following: When the second outdoor temperature is lower than the first temperature threshold, the air conditioner is controlled to enter normal cooling mode. When the second outdoor temperature is greater than the second temperature threshold, the air conditioner is controlled to enter the powerful cooling mode. Wherein, the first temperature threshold is less than the second temperature threshold.

7. The dehumidification control method according to claim 6, characterized in that, The temperature parameters include a second indoor temperature and a preset operating temperature; controlling the cooling operation state of the air conditioner based on the second outdoor temperature, a first temperature threshold, and a second temperature threshold further includes: When the second outdoor temperature is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, the cooling operation state of the air conditioner is controlled according to the absolute value of the difference between the second indoor temperature and the preset operating temperature, the second temperature difference threshold, and the third temperature difference threshold.

8. A dehumidification control device, characterized in that, include: At least one processor; At least one memory for storing at least one program; The dehumidification control method as described in any one of claims 1 to 7 is implemented when at least one of the programs is executed by at least one of the processors.

9. An air conditioner, characterized in that, include: The dehumidification control device as described in claim 8.

10. A computer-readable storage medium, characterized in that, It contains a processor-executable program, which, when executed by the processor, is used to implement the dehumidification control method as described in any one of claims 1 to 7.

Images