CN104930656A - Air conditioner temperature and humidity double-control method and device and air conditioner indoor unit - Google Patents
Air conditioner temperature and humidity double-control method and device and air conditioner indoor unit Download PDFInfo
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- CN104930656A CN104930656A CN201510325799.6A CN201510325799A CN104930656A CN 104930656 A CN104930656 A CN 104930656A CN 201510325799 A CN201510325799 A CN 201510325799A CN 104930656 A CN104930656 A CN 104930656A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000007791 dehumidification Methods 0.000 claims description 55
- 238000004321 preservation Methods 0.000 claims description 38
- 230000009977 dual effect Effects 0.000 claims description 11
- 238000005057 refrigeration Methods 0.000 abstract description 4
- 230000003020 moisturizing effect Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000001816 cooling Methods 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013507 mapping Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner temperature and humidity double-control method. When an air conditioner is switched to a temperature and humidity double-control mode, current indoor temperature and current indoor humidity are detected, and current indoor moisture content is obtained. If the current indoor moisture content meets a preset moisture keeping condition, the coil temperature of a current indoor heat exchanger and the dew point temperature corresponding to a current indoor environment are obtained. The operating frequency of the compressor of the air conditioner is reduced to enable the coil temperature of the current indoor heat exchanger to be higher than the dew point temperature corresponding to the current indoor environment. When the coil temperature of the current indoor heat exchanger is higher than the dew point temperature, current parameters of the air conditioner are kept to perform operation for first preset time. The invention further discloses an air conditioner temperature and humidity double-control device and an air conditioner indoor unit. The indoor humidity is always within a human comfort temperature range corresponding to the indoor temperature in the refrigeration process of the air conditioner, and comfort degree of human is kept.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for double controlling humidity and temperature of an air conditioner and an air conditioner indoor unit.
Background
Air conditioners are commonly used household appliances. The following problems are generally existed in the process of refrigerating operation of the air conditioner: when a room needs larger refrigerating capacity, the air conditioner has larger operation load, the air humidity is continuously reduced in the process of reducing the indoor temperature, and a human body feels very dry; when a room needs smaller refrigerating capacity, the air conditioner has smaller operation load, the air humidity cannot be reduced in the process of reducing the indoor temperature, and a human body feels damp and hot.
At present, the humidifier and other humidification equipment are mainly used for controlling the room humidity, however, the humidifier is difficult to adapt to the air-conditioning refrigeration dehumidification process in the operation process, the room humidity cannot be controlled to be in the human body comfort range corresponding to the room temperature, and the humidity and the temperature cannot be controlled to be simultaneously in the human body comfort range in the air-conditioning operation process, so that the human body comfort requirement is met.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a method and a device for double controlling humidity and temperature of an air conditioner and an air conditioner indoor unit, and aims to solve the technical problem that the humidity and the temperature cannot be controlled simultaneously to meet the comfortable requirement of a human body in the prior art.
In order to achieve the purpose, the invention provides a humidity and temperature double control method of an air conditioner, which comprises the following steps:
s1, detecting the current indoor temperature and the current indoor humidity to obtain the current indoor moisture content;
s2, if the current indoor moisture content meets the preset moisture preservation condition, acquiring the current indoor heat exchanger coil temperature and the dew point temperature corresponding to the current indoor environment;
s3, reducing the running frequency of a compressor of the air conditioner to enable the temperature of the coil of the indoor heat exchanger to be higher than the dew point temperature corresponding to the current indoor environment;
and S4, when the temperature of the heat exchanger coil is greater than the dew point temperature, keeping the current parameter of the air conditioner running for a first preset time, and then turning to the step S1.
Preferably, the step S1 is preceded by:
when the air conditioner enters a humidity and temperature double control mode, obtaining target indoor moisture content;
and obtaining a preset dehumidification condition and a preset moisture preservation condition according to the target indoor moisture content.
Preferably, the obtaining of the preset dehumidification condition and the preset moisture preservation condition according to the target indoor moisture content includes:
according to the target indoor moisture content, determining that the preset dehumidification condition is that the current indoor moisture content is larger than the target indoor moisture content, and determining that the preset moisture preservation condition is that the current indoor moisture content is smaller than the target indoor moisture content; or,
and calculating to obtain a first target indoor moisture content and a second target indoor moisture content according to the target indoor moisture content and a preset allowable floating value, determining that the preset dehumidification condition is that the current indoor moisture content is greater than the first target indoor moisture content, and determining that the preset moisture preservation condition is that the current indoor moisture content is less than the second target indoor moisture content.
Preferably, the step S1 is followed by:
when the current indoor moisture content meets a preset dehumidification condition, acquiring the current indoor heat exchanger coil temperature and the dew point temperature corresponding to the current indoor environment, and dehumidifying by the air conditioner;
the air speed of the air conditioner is reduced, so that the temperature of the coil of the indoor heat exchanger is lower than or equal to the dew point temperature corresponding to the current indoor environment;
and when the temperature of the coil of the current indoor heat exchanger is less than or equal to the dew point temperature corresponding to the current indoor environment, keeping the current parameter of the air conditioner running for a second preset time, and then turning to the step S1.
Preferably, when the heat exchanger coil temperature is greater than the dew point temperature in step S4:
judging whether the current indoor temperature reaches the target indoor temperature;
when the current indoor temperature reaches the target indoor temperature, keeping the current parameter of the air conditioner running for a first preset time, and then turning to step S1;
and when the current indoor temperature does not reach the target indoor temperature, controlling the air conditioner to operate according to preset parameters according to the current indoor temperature and the target indoor temperature, and turning to the step S2.
In addition, in order to achieve the above object, the present invention further provides an air conditioner humidity and temperature dual control device, including:
the moisture content obtaining module is used for obtaining the current indoor temperature and the current indoor humidity and calculating the current indoor moisture content according to the current indoor temperature and the current indoor humidity;
the temperature acquisition module is used for acquiring the current indoor heat exchanger coil temperature and the dew point temperature corresponding to the current indoor environment if the current indoor moisture content meets the preset moisture preservation condition;
the moisture-preserving control module is used for reducing the running frequency of a compressor of the air conditioner so as to enable the current temperature of the coil pipe of the indoor heat exchanger to be larger than the dew-point temperature corresponding to the current indoor environment; and when the temperature of the coil pipe of the heat exchanger is greater than the dew point temperature, keeping the current parameters of the air conditioner running for a first preset time.
Preferably, the air conditioner humidity and temperature dual control device further comprises a moisture content determination module, configured to:
when the air conditioner enters a humidity and temperature double control mode, obtaining target indoor moisture content;
and obtaining a preset dehumidification condition and a preset moisture preservation condition according to the target indoor moisture content.
Preferably, the moisture content determination module is further configured to:
according to the target indoor moisture content, determining that the preset dehumidification condition is that the current indoor moisture content is larger than the target indoor moisture content, and determining that the preset moisture preservation condition is that the current indoor moisture content is smaller than the target indoor moisture content; or,
and calculating to obtain a first target indoor moisture content and a second target indoor moisture content according to the target indoor moisture content and a preset allowable floating value, determining that the preset dehumidification condition is that the current indoor moisture content is greater than the first target indoor moisture content, and determining that the preset moisture preservation condition is that the current indoor moisture content is less than the second target indoor moisture content.
Preferably, the air conditioner humidity and temperature dual control device further comprises a dehumidification control module, configured to:
if the current indoor moisture content meets the preset dehumidification condition, the dehumidification control module is used for reducing the air speed of the air conditioner so that the temperature of the coil of the current indoor heat exchanger is smaller than or equal to the dew point temperature corresponding to the current indoor environment; and when the temperature of the coil is less than or equal to the dew point temperature, keeping the current parameter of the air conditioner to operate for a second preset time.
Preferably, the moisture retention control module is further configured to:
if the current indoor moisture content meets the preset dehumidification condition and the current temperature of the coil pipe of the heat exchanger is higher than the dew point temperature corresponding to the current indoor environment, judging whether the current indoor temperature reaches the target indoor temperature;
when the current indoor temperature reaches the target indoor temperature, keeping the current state of the air conditioner to operate for a first preset time;
and when the current indoor temperature does not reach the target indoor temperature, controlling the air conditioner to operate according to preset parameters according to the current indoor temperature and the target indoor temperature.
In addition, in order to achieve the above object, the present invention further provides an air conditioner indoor unit, which includes a main control board, an indoor heat exchanger, an indoor fan, a coil temperature sensor, an indoor temperature sensor, and an indoor humidity sensor, and is characterized in that the air conditioner indoor unit further includes an air conditioner humidity and temperature double control device of the above structure, and the control device is configured to control operation of the air conditioner by combining a current indoor moisture content, a current indoor temperature, a target indoor moisture content, and a target indoor temperature.
According to the invention, when the air conditioner enters the humidity-temperature double control mode, the current indoor temperature and the current indoor humidity are obtained, the air conditioner is judged to carry out dehumidification treatment or moisture preservation treatment according to the target indoor temperature and the target indoor moisture content, and meanwhile, the operation parameters are adaptively adjusted to control the air conditioner to carry out refrigeration operation, so that the indoor humidity is always in the human body comfortable humidity range corresponding to the indoor temperature in the refrigeration process of the air conditioner, and the comfort of a human body is ensured.
Drawings
FIG. 1 is a schematic flow chart illustrating a method for controlling humidity and temperature of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a detailed flowchart of an embodiment of a method for controlling humidity and temperature of an air conditioner according to the present invention;
FIG. 3 is a schematic diagram of functional modules of an embodiment of a dual humidity and temperature control device of an air conditioner according to the present invention;
fig. 4 is a block diagram of an air conditioner indoor unit according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a humidity and temperature double control method for an air conditioner.
Referring to fig. 1, fig. 1 is a schematic flow chart of an embodiment of a method for controlling humidity and temperature of an air conditioner according to the present invention.
In one embodiment, the air conditioner humidity and temperature double control method comprises the following steps:
step S10, detecting the current indoor temperature and the current indoor humidity, and acquiring the current indoor moisture content;
in this embodiment, after the air conditioner is powered on and started, the current indoor temperature and the current indoor humidity are detected in real time or at regular time through the temperature sensor and the humidity sensor which are arranged on the air conditioner indoor unit, and the current indoor moisture content is obtained according to the detected current indoor temperature and the detected current indoor humidity. The acquisition of the indoor moisture content in the room can be obtained by calculation of a calculation formula, and can also be obtained according to a mapping relation between the preset indoor moisture content and the indoor temperature and the indoor humidity.
Step S20, if the current indoor moisture content meets a preset moisture preservation condition, acquiring the current indoor heat exchanger coil temperature and the dew point temperature corresponding to the current indoor environment;
the dew point temperature is the percentage value of the density of water vapor actually contained in the air and the density of saturated water vapor at the same temperature, and the dew point temperature mainly has a mapping relation with the temperature and the humidity of the indoor environment. In this embodiment, the dew point temperature corresponding to the indoor environment is preset according to the existing known mapping relationship among the indoor environment temperature, the indoor environment humidity, and the dew point temperature. When the current indoor moisture content meets the preset moisture preservation condition, the temperature of the indoor heat exchanger coil is detected through the temperature sensor arranged on the indoor heat exchanger coil. And meanwhile, the dew point temperature corresponding to the current indoor environment temperature and the current indoor environment humidity is obtained through the detected current indoor environment temperature and the detected current indoor environment humidity.
Step S30, reducing the running frequency of the compressor of the air conditioner to make the current indoor heat exchanger coil temperature be greater than the dew point temperature corresponding to the current indoor environment;
and S40, when the temperature of the heat exchanger coil is greater than the dew point temperature, keeping the current parameter of the air conditioner running for a first preset time, and then turning to S10.
The heat exchanger coil temperature is greater than when the dew point temperature, and when current indoor moisture content satisfies predetermined moisturizing condition, the air conditioner is in the processing running state of moisturizing, keeps the first preset time of current parameter operation of air conditioner to be in the state of moisturizing and maintain the balance of this state when making current indoor temperature reduce, reach target indoor temperature and target indoor humidity, human sensation is too dry when avoiding the cooling.
When the air conditioner enters a wet-temperature double-control mode, the air conditioner is controlled to operate, moisturizing treatment and temperature treatment are achieved, and the air conditioner is moisturized simultaneously in the cooling process by controlling the operation frequency of a compressor of the air conditioner so as to maintain the indoor temperature and humidity within a proper range of a human body. Therefore, the human body does not feel too dry or damp and hot in the process of temperature reduction and constant temperature, and is always in a comfortable state.
Referring to fig. 2, fig. 2 is a detailed flow chart of an embodiment of the air conditioner humidity and temperature double control method of the present invention.
Further, based on the foregoing embodiment, in the method for controlling humidity and temperature of an air conditioner according to this embodiment, before the step S10, the method further includes:
step S50, when the air conditioner enters a humidity and temperature double control mode, calculating to obtain the moisture content in the target room according to the set target indoor temperature and the target indoor humidity;
in another embodiment, the target indoor humidity can be calculated and obtained according to the target indoor temperature set by the user and the default target indoor humidity of the air conditioner; or to obtain a default target indoor moisture content.
The moisture content is the mass of water vapor in the moist air concurrent with one kilogram of dry air and can be calculated by the following equation:
where d denotes the moisture content, Ps denotes the partial pressure of water vapor, P denotes the air pressure, and a is a predetermined coefficient, and in the present embodiment, a is 622. The partial pressure Ps of water vapor has a known, calculable mapping relationship with temperature and humidity.
And acquiring and presetting the default target indoor humidity and the default target indoor moisture content of the air conditioner according to a large number of existing human body comfort level and relation empirical values of indoor humidity, temperature and moisture content. In the present embodiment, the user feels comfortable at the target indoor temperature and the target indoor moisture content by default.
It should be noted that the default target indoor moisture content may be 10g/kg, or other values, which can be flexibly set according to actual needs.
And step S60, obtaining a preset dehumidification condition and a preset moisture preservation condition according to the target indoor moisture content.
According to the target indoor moisture content, determining that the preset dehumidification condition is that the current indoor moisture content is larger than the target indoor moisture content, and determining that the preset moisture preservation condition is that the current indoor moisture content is smaller than the target indoor moisture content;
in the embodiment, after the moisture content in the target chamber is obtained, when the current moisture content is determined to be larger than the moisture content in the target chamber, the air conditioner is controlled to perform dehumidification; when the current moisture content is smaller than the moisture content in the target room, controlling the air conditioner to carry out moisture preservation treatment; and when the current moisture content is equal to the moisture content in the target room, controlling the air conditioner to maintain the current parameter operation, maintaining the current indoor moisture content, and controlling the current indoor temperature to reach the target indoor temperature.
In another embodiment, the first target indoor moisture content is 11g/kg and the second target indoor moisture content is 9g/kg according to the target indoor moisture content of 10g/kg and the preset allowable floating value of 1g/kg, the preset dehumidification condition is determined to be that the current indoor moisture content is greater than the first target indoor moisture content of 11g/kg, and the preset moisture preservation condition is determined to be that the current indoor moisture content is less than the second target indoor moisture content of 9 g/kg. It should be noted that the allowable floating value may be 1g/kg, or other values, which can be flexibly set according to actual needs.
In addition, the preset allowable floating value may also be a percentage value, for example, 10%, and the first target indoor moisture content is calculated to be 11g/kg, the second target indoor moisture content is calculated to be 9g/kg, the preset dehumidification condition is determined to be that the current indoor moisture content is greater than the first target indoor moisture content by 11g/kg, and the preset moisture preservation condition is determined to be that the current indoor moisture content is less than the second target indoor moisture content by 9 g/kg. It should be noted that the allowable floating percentage value may be 10%, or other values, which can be flexibly set according to actual needs.
And if the current indoor moisture content is between the first target moisture content and the second target moisture content, the air conditioner maintains the current parameter operation, maintains the current indoor moisture content and controls the current indoor temperature to reach the target indoor temperature.
Further, based on the above embodiment, in the method for controlling humidity and temperature of an air conditioner according to the embodiment, after the step S10, the method further includes the following steps:
step S70, when the current indoor moisture content meets the preset dehumidification condition, acquiring the current indoor heat exchanger coil temperature and the dew point temperature corresponding to the current indoor environment, and performing dehumidification by the air conditioner;
step S80, reducing the air speed of the air conditioner to enable the temperature of the coil of the indoor heat exchanger to be less than or equal to the dew point temperature corresponding to the current indoor environment;
during the operation of the air conditioner, the dehumidification process needs to keep the temperature of the coil of the current indoor heat exchanger less than or equal to the dew point temperature corresponding to the current indoor environment, and discharge redundant water vapor in the current indoor environment.
If the temperature of the coil pipe is larger than the dew point temperature, the air conditioner operates by controlling the air speed of the air conditioner according to a first preset parameter, the air speed is reduced, meanwhile, the air conditioner adaptively adjusts the operating frequency of an outdoor compressor according to the requirement that the current indoor temperature reaches the target indoor temperature, the required refrigerating capacity is maintained, and after a third preset time, whether the temperature of the coil pipe is smaller than or equal to the dew point temperature is judged.
If the temperature of the coil pipe is less than or equal to the dew point temperature, the operating condition of the air conditioner for dehumidification is achieved; if the temperature of the coil pipe is larger than the dew point temperature, the air conditioner reduces the first preset parameter again by controlling the air speed of the air conditioner, and operates for a third preset time until the temperature of the coil pipe is smaller than or equal to the dew point temperature.
It should be noted that the first preset parameter may be that the wind speed is reduced by 10%, or other values, which may be flexibly set according to actual needs; the third preset time may be 10 minutes, or 5 minutes, or other values, and may be flexibly set according to actual needs.
And S90, when the temperature of the coil of the current indoor heat exchanger is less than or equal to the dew point temperature corresponding to the current indoor environment, keeping the current parameter of the air conditioner running for a second preset time, and then, turning to S10.
And when the temperature of the coil pipe is less than or equal to the dew point temperature, the air conditioner keeps the current parameters running for a second preset time to perform dehumidification treatment, maintains the current state for a period of time, and goes to step S10 to detect the current environment in real time, judge whether the dehumidification or the moisture preservation treatment is needed or not and keep the indoor environment in a human body comfortable range. It should be noted that the second preset time may be 10 minutes, 5 minutes, or other values, and is used to control the air conditioner to cool down in the current dehumidification state, and may be flexibly set according to actual needs.
Further, based on the foregoing embodiment, in the method for controlling humidity and temperature of an air conditioner according to this embodiment, the step S30 includes:
if the temperature of the coil pipe is less than or equal to the dew point temperature, the air conditioner reduces a second preset parameter by controlling the running frequency of an outdoor compressor, and after running for a fourth preset time, whether the temperature of the coil pipe is less than or equal to the dew point temperature is judged; and when the temperature of the coil is less than or equal to the dew point temperature, continuously reducing the running frequency of the compressor until the temperature of the heat exchanger coil is greater than the dew point temperature, and setting the running frequency of the compressor when the temperature of the heat exchanger coil is greater than the dew point temperature as the highest running frequency of the compressor in the moisture retention treatment.
If the temperature of the coil pipe is higher than the dew point temperature, the operating condition of the air conditioner for moisturizing is achieved; if the temperature of the coil pipe is smaller than or equal to the dew point temperature, the air conditioner reduces the operation frequency of the outdoor compressor again according to a second preset parameter through control, and after the outdoor compressor operates for a fourth preset time, whether the temperature of the coil pipe is smaller than or equal to the dew point temperature is judged.
In the operation process of the air conditioner, the moisture preservation treatment needs to keep the temperature of the coil pipe of the current indoor heat exchanger to be higher than the dew point temperature corresponding to the current indoor environment, and keep the water vapor in the current indoor environment.
It should be noted that the second preset parameter may be that the operating frequency of the outdoor compressor is controlled to be reduced by 5Hz, or the outdoor compressor is controlled to operate for 5 minutes at 0.8 times of the current frequency, or other values, and may be flexibly set according to actual needs. The fourth preset time may be 10 minutes, or 5 minutes, or other values, and is used to raise the temperature of the indoor heat exchanger coil, and may be flexibly set according to actual needs.
Further, based on the foregoing embodiment, in the method for controlling humidity and temperature of an air conditioner according to this embodiment, the step S40 includes:
step S41, when the current indoor temperature does not reach the target indoor temperature, controlling the air conditioner to operate according to a third preset parameter, and after controlling the air conditioner to operate for a fifth preset time, turning to step S20;
when the current indoor temperature does not reach the target indoor temperature, the wind speed of the indoor unit is controlled until the current indoor temperature reaches the target indoor temperature.
It should be noted that the third preset parameter may be controlling the maximum air speed of the air conditioner and controlling the compressor to operate according to the current frequency, or controlling the maximum air speed of the air conditioner and controlling the outdoor compressor to operate according to 0.8 times of the maximum operation frequency of the compressor in the moisturizing treatment, or other values, so as to control the air conditioner to keep in a moisturizing state while cooling, and may be flexibly set according to actual needs.
Step S42, when the current indoor temperature reaches the target indoor temperature, the current state of the air conditioner is maintained for the first preset time, and then the process proceeds to step S10.
When the current indoor temperature reaches the target indoor temperature, the current state of the air conditioner is kept running for the first preset time, and then the operation is switched to the step S10, the current environment is detected in real time, whether dehumidification or moisture preservation is needed or not is judged, and the indoor environment is kept within the human body comfort range.
It should be noted that the first preset time may be 10 minutes, or other values, and is used to control the air conditioner to cool down in the current moisturizing state, and may be flexibly set according to actual needs.
Correspondingly, the invention further provides a humidity and temperature double control device of the air conditioner.
Referring to fig. 3, fig. 3 is a functional block diagram of an embodiment of a humidity and temperature dual control device of an air conditioner according to the present invention.
In one embodiment, the air conditioner humidity and temperature double control device comprises:
a moisture content obtaining module 100, configured to obtain a current indoor temperature and a current indoor humidity, and calculate a current indoor moisture content according to the current indoor temperature and the current indoor humidity;
the temperature obtaining module 200 is configured to obtain a current indoor heat exchanger coil temperature and a dew point temperature corresponding to a current indoor environment if the current indoor moisture content meets a preset moisture preservation condition;
the moisture preservation control module 300 is configured to reduce an operating frequency of a compressor of the air conditioner to enable a current indoor heat exchanger coil temperature to be greater than a dew point temperature corresponding to a current indoor environment; and when the temperature of the coil pipe of the heat exchanger is greater than the dew point temperature, keeping the current parameters of the air conditioner running for a first preset time.
When the air conditioner enters a wet-temperature double-control mode, the air conditioner is controlled to operate, moisturizing treatment and temperature treatment are achieved, and the air conditioner is moisturized simultaneously in the cooling process by controlling the operation frequency of a compressor of the air conditioner so as to maintain the indoor temperature and humidity within a proper range of a human body. Therefore, the human body does not feel too dry or damp and hot in the process of temperature reduction and constant temperature, and is always in a comfortable state.
Further, based on the above embodiment, the humidity and temperature dual control device of the air conditioner of this embodiment further includes a moisture content determination module 400, configured to:
when the air conditioner enters a humidity and temperature double control mode, the moisture content determination module 400 calculates and obtains the moisture content in the target room according to the set target indoor temperature and the target indoor humidity; or calculating to obtain the moisture content in the target room according to the set target indoor temperature and the default target indoor humidity; or to obtain a default target indoor moisture content.
The moisture content determination module 400 is further configured to obtain a preset dehumidification condition and a preset moisture preservation condition according to the target indoor moisture content:
according to the target indoor moisture content, the moisture content determination module 400 determines that the preset dehumidification condition is that the current indoor moisture content is greater than the target indoor moisture content, and determines that the preset moisture content condition is that the current indoor moisture content is less than the target indoor moisture content; or,
according to the target indoor moisture content of 10g/kg and the preset allowable floating value of 1g/kg, the moisture content determination module 400 calculates and obtains a first target indoor moisture content of 11g/kg and a second target indoor moisture content of 9g/kg, determines the preset dehumidification condition that the current indoor moisture content is greater than the first target indoor moisture content of 11g/kg, and determines the preset moisture preservation condition that the current indoor moisture content is less than the second target indoor moisture content of 9 g/kg.
If the current indoor moisture content is equal to the target moisture content or is between the first target moisture content of 11g/kg and the second target moisture content of 9g/kg, the moisture content determination module 400 controls the air conditioner to maintain the current parameter operation and maintain the current indoor moisture content, so that the current indoor temperature reaches the target indoor temperature.
Further, based on the above embodiment, the humidity and temperature dual control device of the air conditioner of this embodiment further includes a dehumidification control module 500, configured to:
when the current indoor moisture content meets the preset dehumidification condition, the dehumidification control module 500 controls the air conditioner to perform dehumidification processing.
The dehumidification control module 500 obtains the current temperature of the coil of the indoor heat exchanger, and obtains the dew point temperature corresponding to the current indoor environment according to the preset dew point temperature corresponding to the current indoor environment.
If the coil temperature is greater than the dew point temperature, the dehumidification control module 500 controls the air conditioner to operate at a reduced air speed according to a first preset parameter, the dehumidification control module 500 controls the air conditioner to adaptively adjust the operating frequency of the outdoor compressor according to the requirement that the current indoor temperature reaches the target indoor temperature while reducing the air speed, the required refrigerating capacity is maintained, and after a third preset time, the dehumidification control module 500 judges whether the coil temperature is less than or equal to the dew point temperature. If the temperature of the coil pipe is less than or equal to the dew point temperature, the air conditioner reaches the operation condition for dehumidification treatment; if the coil temperature is greater than the dew point temperature, the dehumidification control module 500 controls the air speed of the air conditioner to reduce the first preset parameter again and operates for a third preset time minute, and then whether the coil temperature is less than or equal to the dew point temperature is judged.
When the temperature of the coil is less than or equal to the dew point temperature, the dehumidification control module 500 controls the air conditioner to keep the current parameters running for a second preset time to perform dehumidification treatment, and maintains the current equilibrium state for a period of time.
And in the process of controlling the operation of the air conditioner by the dehumidification control module, the temperature of the coil of the indoor heat exchanger at present needs to be kept less than or equal to the dew point temperature corresponding to the indoor environment at present, and redundant water vapor in the indoor environment at present is discharged.
Further, based on the above embodiment, in the air conditioner humidity and temperature dual control device of the embodiment, the humidity keeping control module 300 is specifically configured to:
if the coil temperature is less than or equal to the dew point temperature, the moisture preservation control module 300 controls the operation frequency of the external compressor of the air conditioner to reduce a second preset parameter, and after the operation for a fourth preset time, the moisture preservation control module 300 judges whether the coil temperature is less than or equal to the dew point temperature. If the temperature of the coil pipe is higher than the dew point temperature, the operating condition of the air conditioner for moisturizing is achieved; if the temperature of the coil pipe is less than or equal to the dew point temperature, the moisture preservation control module controls the operation frequency of an external compressor of the air conditioner to reduce a second preset parameter again, and after the operation for a fourth preset time, whether the temperature of the coil pipe is less than or equal to the dew point temperature is judged.
In the process of the air conditioner moisture preservation processing operation, the moisture preservation control module 300 needs to control the air conditioner to keep the current indoor heat exchanger coil temperature larger than the dew point temperature corresponding to the current indoor environment and keep the water vapor in the current indoor environment.
Further, based on the above embodiment, in the air conditioner humidity and temperature dual control device of this embodiment, the humidity keeping control module 300 is configured to:
when the coil temperature is greater than the dew point temperature, the moisture retention control module 300 determines whether the current indoor temperature reaches the target indoor temperature:
when the current indoor temperature reaches the target indoor temperature, the moisture retention control module 300 controls the air conditioner to keep the current state of the air conditioner running for a first preset time; when the current indoor temperature does not reach the target indoor temperature, the moisture retention control module 300 controls the air conditioner to operate according to a third preset parameter, reduces the current indoor temperature, and controls the air conditioner to operate for a fifth preset time.
Correspondingly, the invention further provides an air conditioner indoor unit.
Referring to fig. 4, fig. 4 is a block diagram of an air conditioner indoor unit according to an embodiment of the present invention.
In one embodiment, the indoor unit of the air conditioner comprises:
the indoor heat exchanger A1 is used for cooling the air conditioner, and is provided with a coil temperature sensor A11 and used for detecting the current coil temperature;
the indoor fan A2 is used for controlling the A2 air speed of the indoor fan through a control device A5 and adjusting the temperature of the coiler;
an indoor temperature sensor a3 for detecting a current indoor temperature;
an indoor humidity sensor a4 for detecting a current indoor humidity;
the control device A5 is used for controlling the air conditioner to perform dehumidification and moisture preservation while controlling the air conditioner to cool by combining the current indoor moisture content, the current indoor temperature, the target indoor moisture content and the target indoor temperature, so that the indoor humidity is always in a human body comfortable humidity range corresponding to the indoor temperature;
it should be noted that the control device a5 in the air conditioner indoor unit may be independently disposed in the air conditioner indoor unit, or may be disposed on a main control board of the air conditioner indoor unit, and may be flexibly disposed according to actual needs.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A humidity and temperature double control method for an air conditioner is characterized by comprising the following steps:
s1, detecting the current indoor temperature and the current indoor humidity to obtain the current indoor moisture content;
s2, if the current indoor moisture content meets the preset moisture preservation condition, acquiring the current indoor heat exchanger coil temperature and the dew point temperature corresponding to the current indoor environment;
s3, reducing the running frequency of a compressor of the air conditioner to enable the temperature of the coil of the indoor heat exchanger to be higher than the dew point temperature corresponding to the current indoor environment;
and S4, when the temperature of the heat exchanger coil is greater than the dew point temperature, keeping the current parameter of the air conditioner running for a first preset time, and then turning to the step S1.
2. The method for controlling humidity and temperature of an air conditioner as claimed in claim 1, wherein the step S1 is preceded by the steps of:
when the air conditioner enters a humidity and temperature double control mode, obtaining target indoor moisture content;
and obtaining a preset dehumidification condition and a preset moisture preservation condition according to the target indoor moisture content.
3. The method for controlling humidity and temperature of an air conditioner as claimed in claim 2, wherein the obtaining of the preset dehumidifying condition and the preset moisture-keeping condition according to the target indoor moisture content comprises:
according to the target indoor moisture content, determining that the preset dehumidification condition is that the current indoor moisture content is larger than the target indoor moisture content, and determining that the preset moisture preservation condition is that the current indoor moisture content is smaller than the target indoor moisture content; or,
and calculating to obtain a first target indoor moisture content and a second target indoor moisture content according to the target indoor moisture content and a preset allowable floating value, determining that the preset dehumidification condition is that the current indoor moisture content is greater than the first target indoor moisture content, and determining that the preset moisture preservation condition is that the current indoor moisture content is less than the second target indoor moisture content.
4. The method for controlling humidity and temperature of an air conditioner as claimed in claim 1, wherein the step S1 is followed by further comprising:
when the current indoor moisture content meets a preset dehumidification condition, acquiring the current indoor heat exchanger coil temperature and the dew point temperature corresponding to the current indoor environment, and dehumidifying by the air conditioner;
the air speed of the air conditioner is reduced, so that the temperature of the coil of the indoor heat exchanger is lower than or equal to the dew point temperature corresponding to the current indoor environment;
and when the temperature of the coil of the current indoor heat exchanger is less than or equal to the dew point temperature corresponding to the current indoor environment, keeping the current parameter of the air conditioner running for a second preset time, and then turning to the step S1.
5. The method for controlling humidity and temperature of an air conditioner as claimed in claim 1, wherein when the temperature of the coil of the heat exchanger is greater than the dew point temperature in step S4:
judging whether the current indoor temperature reaches the target indoor temperature;
when the current indoor temperature reaches the target indoor temperature, keeping the current parameter of the air conditioner running for a first preset time, and then turning to step S1;
and when the current indoor temperature does not reach the target indoor temperature, controlling the air conditioner to operate according to preset parameters according to the current indoor temperature and the target indoor temperature, and turning to the step S2.
6. The utility model provides an air conditioner wet temperature double control device which characterized in that, air conditioner wet temperature double control device includes:
the moisture content obtaining module is used for obtaining the current indoor temperature and the current indoor humidity and calculating the current indoor moisture content according to the current indoor temperature and the current indoor humidity;
the temperature acquisition module is used for acquiring the current indoor heat exchanger coil temperature and the dew point temperature corresponding to the current indoor environment when the current indoor moisture content meets the preset moisture preservation condition;
the moisture-preserving control module is used for reducing the running frequency of a compressor of the air conditioner so as to enable the current temperature of the coil pipe of the indoor heat exchanger to be larger than the dew-point temperature corresponding to the current indoor environment; and when the temperature of the coil pipe of the heat exchanger is greater than the dew point temperature, keeping the current parameters of the air conditioner running for a first preset time.
7. The air conditioner humidity and temperature double control device as claimed in claim 6, further comprising a moisture content determination module for:
when the air conditioner enters a humidity and temperature double control mode, obtaining target indoor moisture content;
and obtaining a preset dehumidification condition and a preset moisture preservation condition according to the target indoor moisture content.
8. The air conditioner humidity and temperature dual control device as claimed in claim 7, wherein the moisture content determination module is further configured to:
according to the target indoor moisture content, determining that the preset dehumidification condition is that the current indoor moisture content is larger than the target indoor moisture content, and determining that the preset moisture preservation condition is that the current indoor moisture content is smaller than the target indoor moisture content; or,
and calculating to obtain a first target indoor moisture content and a second target indoor moisture content according to the target indoor moisture content and a preset allowable floating value, determining that the preset dehumidification condition is that the current indoor moisture content is greater than the first target indoor moisture content, and determining that the preset moisture preservation condition is that the current indoor moisture content is less than the second target indoor moisture content.
9. The air conditioner humidity and temperature double control device as claimed in claim 6, further comprising a dehumidification control module for:
if the current indoor moisture content meets the preset dehumidification condition, the dehumidification control module is used for reducing the air speed of the air conditioner so that the temperature of the coil of the current indoor heat exchanger is smaller than or equal to the dew point temperature corresponding to the current indoor environment; and when the temperature of the coil is less than or equal to the dew point temperature, keeping the current parameter of the air conditioner to operate for a second preset time.
10. The air conditioner humidity and temperature dual control device as claimed in claim 6, wherein the humidity keeping control module is further configured to:
if the current indoor moisture content meets the preset dehumidification condition and the current temperature of the coil pipe of the heat exchanger is higher than the dew point temperature corresponding to the current indoor environment, judging whether the current indoor temperature reaches the target indoor temperature;
when the current indoor temperature reaches the target indoor temperature, keeping the current state of the air conditioner to operate for a first preset time;
and when the current indoor temperature does not reach the target indoor temperature, controlling the air conditioner to operate according to preset parameters according to the current indoor temperature and the target indoor temperature.
11. An indoor unit of an air conditioner, which comprises a main control panel, an indoor heat exchanger, an indoor fan, a coil pipe temperature sensor, an indoor temperature sensor and an indoor humidity sensor, and is characterized by further comprising a humidity and temperature double control device of the air conditioner as claimed in any one of claims 6 to 10, wherein the control device is used for controlling the operation of the air conditioner by combining the current indoor moisture content, the current indoor temperature, the target indoor moisture content and the target indoor temperature.
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| CN113606728A (en) * | 2021-07-26 | 2021-11-05 | 宁波奥克斯电气股份有限公司 | Air conditioner and control method thereof |
| CN113606728B (en) * | 2021-07-26 | 2022-10-28 | 宁波奥克斯电气股份有限公司 | Air conditioner and control method thereof |
| CN114017902A (en) * | 2021-10-27 | 2022-02-08 | 珠海格力电器股份有限公司 | Equipment control method, device, equipment and storage medium |
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