CN111023512A - Air conditioner temperature and humidity control method and device and air conditioner - Google Patents
Air conditioner temperature and humidity control method and device and air conditioner Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004378 air conditioning Methods 0.000 claims description 4
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- 230000033228 biological regulation Effects 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 description 33
- 238000001816 cooling Methods 0.000 description 12
- 238000007791 dehumidification Methods 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
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- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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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
- F24F11/62—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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- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses an air conditioner temperature and humidity control method, an air conditioner temperature and humidity control device and an air conditioner, wherein an indoor temperature value, an indoor relative humidity value and an inner coil temperature value are collected; if the difference value between the indoor temperature value and the set temperature value meets a first preset condition, controlling the compressor to operate at the maximum working frequency, and simultaneously controlling the indoor unit fan to operate at the maximum rotating speed; and if the difference value between the indoor temperature value and the set temperature value meets a second preset condition, adjusting the indoor humidity according to the indoor temperature value, the indoor relative humidity value and the inner coil temperature value. In the embodiment of the invention, when the temperature is higher, the indoor temperature is controlled to be quickly reduced to the specific temperature, and after the indoor temperature is reduced to the specific temperature, the relative humidity is controlled by the indoor unit fan, so that a better temperature and humidity control effect is achieved, the requirements of a user on synchronous regulation of the temperature and the humidity are met, and convenience is provided for the user to use the air conditioner.
Description
Technical Field
The invention relates to the technical field of intelligent home furnishing, in particular to an air conditioner temperature and humidity control method and device and an air conditioner.
Background
The existing air conditioner belongs to equipment necessary for home furnishing, along with the improvement of living standard, a user pays more attention to the air conditioner in adjusting indoor temperature and indoor humidity, and the existing air conditioner can not give consideration to temperature and humidity adjustment when in refrigeration operation. When the indoor temperature reaches the set temperature, the indoor humidity may be higher or lower and deviate from the comfortable range of the temperature and humidity of the human body, causing discomfort to the user.
When the existing air conditioner adjusts the temperature and the humidity, because the adjustment of the temperature and the adjustment of the humidity are related, when the air conditioner cools down, the air conditioner dehumidifies, and when the air conditioner dehumidifies, the temperature may be raised or lowered, and when the air conditioner dehumidifies, in order to obtain a better dehumidification effect, the operating frequency of the compressor is less than that of the air conditioner when cooling down, so that when dehumidifying, the temperature is lowered slowly, and the demand of rapid cooling can not be met when the temperature and the humidity of the air conditioner are adjusted at the same time.
Therefore, the prior art is subject to further improvement.
Disclosure of Invention
In view of the defects in the prior art, the invention provides an air conditioner temperature and humidity control method, an air conditioner temperature and humidity control system and an air conditioner, and overcomes the defects that in the prior art, when dehumidification and adjustment are carried out, the cooling efficiency is low, and dehumidification and rapid cooling cannot be met.
In a first aspect, this embodiment discloses an air conditioner temperature and humidity control method, where the air conditioner includes a compressor and an indoor fan, and the air conditioner temperature and humidity control method further includes:
collecting an indoor temperature value, an indoor relative humidity value and an inner coil temperature value;
if the difference value between the indoor temperature value and the set temperature value meets a first preset condition, controlling the compressor to operate at a first preset frequency, and simultaneously controlling the fan of the indoor unit to operate at a first rotating speed; the first preset frequency is the maximum value of the working frequency of the compressor, and the first rotating speed is the maximum value of the working rotating speed of the fan of the indoor unit;
and if the difference value between the indoor temperature value and the set temperature value meets a second preset condition, adjusting the frequency of the compressor and the rotating speed of the indoor fan according to the indoor temperature value, the indoor relative humidity value and the inner coil temperature value.
Optionally, the step of adjusting the compressor frequency and the indoor fan rotation speed according to the indoor temperature value, the indoor relative humidity value and the inner coil temperature value specifically includes:
calculating dew point temperature and indoor moisture content according to the indoor relative humidity value and the indoor temperature value;
and adjusting the compressor frequency and the indoor fan rotating speed according to the inner coil temperature value, the dew point temperature and the indoor moisture content.
Optionally, the first preset condition specifically includes: the difference value between the indoor temperature value and the set temperature value is greater than a preset first threshold value; the second preset condition specifically includes: and the difference value between the indoor temperature value and the set temperature value is less than or equal to a preset first threshold value and greater than a preset second threshold value.
Optionally, the step of adjusting the compressor frequency and the indoor fan rotation speed according to the inner coil temperature value, the dew point temperature, and the indoor moisture content specifically includes:
if the indoor moisture content is greater than the target set moisture content and the temperature value of the inner coil is greater than the dew point temperature value, controlling the compressor to operate at a second preset frequency and simultaneously controlling the fan of the indoor unit to operate at a second rotating speed; the second preset frequency is less than or equal to the first preset frequency, and the second rotating speed is less than the first rotating speed;
if the indoor moisture content is less than or equal to the target set moisture content and the temperature value of the inner coil is greater than the dew point temperature value, controlling the compressor to operate at a third preset frequency; wherein the third preset frequency is less than the second preset frequency;
if the indoor moisture content is less than or equal to the target set moisture content and the temperature value of the inner coil is less than or equal to the dew point temperature value, controlling the compressor to operate at a third preset frequency and simultaneously controlling the fan of the indoor unit to operate at a third rotating speed; wherein the third rotation speed is less than or equal to the first rotation speed.
Optionally, the step of adjusting the compressor frequency and the indoor fan rotation speed according to the indoor temperature value, the indoor relative humidity value, and the inner coil temperature value further includes:
if the difference value between the indoor temperature value and the set temperature value does not meet a second preset condition, controlling the compressor to operate at a fourth preset frequency; wherein the fourth preset frequency is a minimum value of the working frequency of the compressor.
Optionally, the value range of the preset first threshold is 1-10 ℃, and the preset second threshold is-1-0 ℃.
In a second aspect, this embodiment also provides an air conditioner temperature and humidity control device, including compressor and indoor set fan, wherein, still include: an indoor environment temperature sensor, an inner coil temperature sensor, an indoor environment humidity sensor and a controller;
the indoor environment temperature sensor, the inner coil pipe temperature sensor and the indoor environment temperature sensor are respectively used for acquiring an indoor temperature value, an inner coil pipe temperature value and an indoor relative humidity value;
the controller is used for judging whether the difference value between the initial indoor temperature value and the set temperature value meets a first preset condition or not; if so, controlling the compressor to operate at a first preset frequency, and simultaneously controlling the indoor unit fan to operate at a first rotating speed; the first preset frequency is the maximum value of the working frequency of the compressor, and the first rotating speed is the maximum value of the working rotating speed of the fan of the indoor unit; (ii) a
Judging that the difference value between the current indoor temperature value and the set temperature value meets a second preset condition; and if so, adjusting the frequency of the compressor and the rotating speed of the indoor fan according to the indoor temperature value, the indoor relative humidity value and the inner coil temperature value.
Optionally, the controller includes: a calculation module and a control module;
the calculation module is used for calculating dew point temperature and indoor moisture content according to the indoor relative humidity value and the indoor temperature value;
and the control module is used for adjusting the frequency of the compressor and the rotating speed of the indoor fan according to the temperature value of the inner coil, the dew point temperature and the indoor moisture content.
Optionally, the preset first threshold value ranges from 1 ℃ to 10 ℃, and the first preset range ranges from-1 ℃ to 0 ℃.
In a third aspect, the present embodiment further discloses an air conditioner, wherein the air conditioner includes the air conditioner temperature and humidity control device.
The invention discloses an air conditioner temperature and humidity control method, an air conditioner temperature and humidity control device and an air conditioner, wherein an indoor temperature value, an indoor relative humidity value and an inner coil temperature value are collected; if the difference value between the indoor temperature value and the set temperature value meets a first preset condition, controlling the compressor to operate at a first preset frequency, and simultaneously controlling the fan of the indoor unit to operate at a first rotating speed; the first preset frequency is the maximum value of the working frequency of the compressor, and the first rotating speed is the maximum value of the working rotating speed of the fan of the indoor unit; if the difference value between the indoor temperature value and the set temperature value meets a second preset condition, the compressor frequency and the indoor fan rotating speed are adjusted according to the indoor temperature value, the indoor relative humidity value and the inner coil pipe temperature value, and therefore the indoor humidity is adjusted. In the embodiment of the invention, when the temperature is not in the comfortable area, the indoor temperature quickly reaches the comfortable temperature interval through the high-frequency operation of the compressor, and the relative humidity is controlled through the fan of the indoor unit after the temperature enters the comfortable area, so that the better temperature and humidity control effect is achieved, the requirement of a user on synchronous regulation of the temperature and the humidity is met, and convenience is provided for the user to use the air conditioner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating steps of a method for controlling temperature and humidity of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a flow chart of steps for an embodiment of a specific application of an embodiment of the present invention;
fig. 3 is a schematic diagram of the structure of the device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. 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 inventor finds that in the refrigeration mode of the air conditioner in the prior art, low-pressure vapor refrigerant is compressed, the refrigerant is compressed into liquid under the action of high pressure, and the liquid refrigerant is sent into a condenser to be vaporized and absorb a large amount of heat, so that the temperature of outlet air is reduced, and the refrigeration effect is achieved. The effect of the cooling mode is generally very obvious, and the indoor temperature can be reduced in a short time. In the dehumidification mode, the air conditioner will continue the heat circulation of the cooling mode, but the internal compressor will keep running at a low speed compared with the normal cooling mode. In the process of refrigerant evaporation, an evaporator in the air conditioner needs to absorb heat, so that the overall temperature of the evaporator is reduced. In such a case, the water vapor in the chamber meets the low-temperature evaporator, and is condensed into liquid water, which is then discharged out of the chamber. Therefore, in the dehumidification mode, a user can feel that the air becomes drier and the temperature is reduced, but the temperature reduction speed is far less than that in the refrigeration mode, so that the current air conditioner cannot meet the requirement that the user wants to dehumidify and rapidly reduce the temperature at the same time.
In order to solve the above problems in the prior art, this embodiment provides a method for simultaneously controlling temperature and humidity of an air conditioner, where first, an indoor temperature is controlled to rapidly decrease to a preset threshold, then, an indoor humidity is adjusted, when the indoor temperature and a set temperature reach within a threshold range, a frequency of an outdoor unit compressor decreases to a certain frequency, an indoor unit compares a temperature of an evaporator coil with a dew point temperature, a real-time moisture content with a target moisture content, and then, a rotation speed of an internal fan is controlled to perform dehumidification or moisture preservation, thereby implementing an air conditioner control method taking cooling and dehumidification into consideration.
Example 1
As shown in fig. 1, the embodiment discloses an air conditioner temperature and humidity control method, which includes:
step S101, collecting an indoor temperature value, an indoor relative humidity value and an inner coil temperature value.
In order to implement the method disclosed in this embodiment, an indoor environment temperature sensor, an indoor relative humidity sensor, and an indoor environment humidity sensor for acquiring an indoor temperature value, an indoor relative humidity value, and an inner coil temperature value are respectively disposed on an air conditioner to be temperature and humidity controlled, and are respectively used for acquiring an indoor temperature value, an indoor relative humidity value, and an inner coil temperature value. The indoor temperature value is the temperature of the indoor environment, the indoor relative humidity value is the percentage of the water vapor pressure in the indoor air to the saturated water vapor pressure, and the ratio of the absolute humidity of the humid air to the maximum absolute humidity which can be reached at the same temperature. The temperature value of the inner coil is the temperature value of the coil in the air conditioner room. The indoor temperature and humidity values are collected through the sensors, and the sensors are convenient to adjust.
The step can be executed after the air conditioner is started up according to the setting, and can also be executed according to the user instruction when the air conditioner temperature and humidity control function is started up and responding to the user instruction. Or after the air conditioner is started, automatically detecting whether the temperature and humidity control function of the air conditioner is started, and if the temperature and humidity control function is started, knowing to execute the temperature and humidity control step in the method of the embodiment. In the specific implementation process, the user can send the instruction through a key, can send the instruction through voice, can transmit the instruction through a touch screen, or can transmit the instruction through a mobile terminal.
Step S102, if the difference value between the indoor temperature value and the set temperature value meets a first preset condition, controlling the compressor to operate at a first preset frequency, and simultaneously controlling the indoor unit fan to operate at a first rotating speed; the first preset frequency is the maximum value of the working frequency of the compressor, and the first rotating speed is the maximum value of the working rotating speed of the fan of the indoor unit.
Comparing the indoor temperature value collected in the step S102 with the set temperature value, determining whether a difference between the indoor temperature value and the set temperature value satisfies a first preset condition, and controlling to adjust the indoor temperature if the difference satisfies the first preset condition.
Specifically, when a first preset condition is met, the air-conditioning compressor is controlled to operate at a first preset frequency, and meanwhile, the indoor unit fan is controlled to operate at a first rotating speed, wherein the first preset frequency is the maximum value of the working frequency of the compressor, and the first rotating speed is the maximum value of the working rotating speed of the indoor unit fan, so that the indoor temperature is adjusted to a value which is different from a set temperature value within the shortest time and does not meet the first preset condition.
Specifically, the first preset condition specifically includes: the difference value between the indoor temperature value and the set temperature value is greater than a preset first threshold value; the preset first threshold may be any number between 0.5 and 10 degrees. For example: if the preset first threshold value is 2 degrees, when the collected indoor temperature value is 30 degrees, the set temperature value is 26 degrees, and the difference value between the indoor temperature value and the set temperature value is 4 degrees obtained through comparison, the compressor is controlled to operate at the maximum working frequency, and the fan of the indoor unit is controlled to operate at the maximum rotating speed until the indoor temperature value is detected to be 28 degrees.
The preset first threshold value in the step needs to meet the requirement that the adjusted indoor temperature value is close to the set temperature value, the indoor temperature is quickly reduced to be close to the set temperature value by giving priority to the cooling efficiency, and a great deal of inconvenience brought to users by the low cooling efficiency is avoided.
Step S103, if the difference value between the indoor temperature value and the set temperature value meets a second preset condition, adjusting the compressor frequency and the indoor fan rotating speed according to the indoor temperature value, the indoor relative humidity value and the inner coil temperature value.
When the difference value between the indoor temperature and the set temperature value is adjusted to be smaller than a preset first threshold value in the step S1O2, whether the difference value between the indoor temperature and the set temperature value meets a second preset condition or not is judged, and if the difference value meets the second preset condition, the compressor frequency and the indoor fan rotating speed are adjusted according to the indoor temperature value, the indoor relative humidity value and the inner coil temperature value.
Specifically, the second preset condition is that a difference between the indoor temperature value and the set temperature value is smaller than or equal to a preset first threshold and larger than a preset second threshold. For example: when the preset first threshold value is 4 and the preset second threshold value is-0.5, if the indoor temperature value is 24 and the set temperature value is 23 degrees, the indoor temperature value, the indoor relative humidity value and the inner coil temperature value adjust the frequency of the compressor and the rotating speed of the indoor fan to adjust the indoor humidity.
Further, in this step, firstly, the indoor humidity is adjusted to be consistent with the set humidity according to the difference between the indoor temperature and the set temperature, and the difference between the indoor relative humidity and the target set moisture content.
Specifically, in order to realize better regulation of the temperature and humidity, the step of regulating the indoor humidity according to the regulated indoor temperature value, the set temperature value, the indoor relative humidity value, the inner coil temperature value and the target set moisture content further comprises:
and S301, calculating the dew point temperature and the indoor moisture content according to the indoor relative humidity value and the indoor temperature value.
In the step, the dew point temperature and the indoor moisture content are calculated according to the indoor relative humidity value acquired by the humidity sensor and the indoor temperature value acquired by the temperature sensor.
Specifically, the dew point temperature is calculated according to the following formula one:
Tdew＝f(RH，TIndoor use)＝(-0.19837*RH2+51600*RH+940*TIndoor use-30570)/1000，
Calculating the indoor moisture content by using the following formula II
dIndoor use＝f(RH，TIndoor use)＝(1012*RH2+52*TIndoor use 2+48900*RH-660500*RH/TIndoor use+29600)/1000；
And respectively substituting the collected indoor temperature value and the indoor relative humidity value into the two formulas to obtain the dew point temperature and the indoor moisture content.
And S302, adjusting the frequency of the compressor and the rotating speed of the indoor fan according to the temperature value of the inner coil, the dew point temperature, the indoor moisture content and the target set moisture content.
And adjusting the compressor frequency and the indoor fan rotating speed according to the dew point temperature and the indoor moisture content, the temperature value of the inner coil and the target set moisture content value which are obtained by calculation in the step S301.
The temperature and humidity control method provided by the invention comprises the steps of firstly judging whether a difference value between the indoor temperature and the set temperature meets a first preset condition, wherein the first preset condition is whether the difference value between the indoor temperature and the set temperature is larger than a preset first threshold value, and if so, controlling a compressor to operate at the maximum working frequency and controlling a fan to operate at the maximum rotating speed.
And then judging whether the difference value between the adjusted indoor temperature value and the set temperature value meets second preset adjustment, if so, combining the temperature value of the inner coil pipe with the dew point temperature, the indoor moisture content and the target set moisture content, and controlling the indoor humidity. Specifically, the larger of the two endpoints of the second preset condition is smaller than the preset first threshold, for example: the first preset threshold range is: 1-10 ℃, when the first preset threshold is set to be 1 ℃, and when the difference value between the indoor temperature value and the set temperature value is greater than 1, the refrigeration mode can be directly executed to adjust the indoor temperature. If the difference value between the indoor temperature value and the set temperature value is 0.8, the indoor humidity needs to be adjusted by combining the temperature value of the inner coil pipe, the dew point temperature, the indoor moisture content and the target set moisture content, so that the indoor temperature and humidity are adjusted. According to the adjusting method provided by the invention, the temperature is adjusted to the set temperature and then the humidity is adjusted by preferentially considering the adjustment of the temperature, so that the waiting time for a user to enter a comfortable area when the temperature and the humidity are adjusted simultaneously is reduced, and the requirement of the user on indoor rapid cooling by using an air conditioner is met.
Specifically, the step of comparing the temperature value of the inner coil with the dew point temperature, the indoor moisture content and the target set moisture content, and adjusting the indoor humidity according to the comparison result includes the following four possible situations:
the first method comprises the following steps: if the indoor moisture content is greater than the target set moisture content and the temperature value of the inner coil is greater than the dew point temperature value, controlling the compressor to operate at a second preset frequency, and controlling the fan of the indoor unit to operate at a second rotating speed, wherein the second preset frequency is less than or equal to the first preset frequency; the second rotational speed is less than the first rotational speed.
Because the current indoor moisture content and the current indoor temperature are both larger than the set values, a better dehumidification effect is achieved by reducing the rotating speed of the fan of the indoor unit and maintaining the working frequency of the compressor at a higher value.
And the second method comprises the following steps: and if the indoor moisture content is greater than the target set moisture content and the temperature value of the inner coil is less than or equal to the dew point temperature value, controlling the compressor to operate at a second preset frequency and controlling the rotating speed of the fan of the indoor unit to be kept unchanged.
Because the current indoor humidity is larger than the set humidity value, the compressor is controlled to operate at a larger frequency, the rotating speed of the fan of the indoor unit is kept unchanged, and the indoor temperature is kept within a certain range to execute the dehumidification operation.
And the third is that: if the indoor moisture content is less than or equal to the target set moisture content and the temperature value of the inner coil is greater than the dew point temperature value, controlling the compressor to run at a third preset frequency and controlling the rotating speed of the fan of the indoor unit to be kept unchanged; the third preset frequency is less than the second preset frequency.
Because the current temperature value of the inner coil pipe is greater than the dew point temperature value, and the indoor moisture content is less than or equal to the target set moisture content, the compressor is controlled to operate at a lower working frequency, and the rotating speed of the fan of the indoor unit is kept unchanged, so that the current indoor temperature and the current indoor humidity can be stably stored in the current state.
And fourthly: and if the indoor moisture content is less than or equal to the target set moisture content and the temperature value of the inner coil is less than or equal to the dew point temperature value, controlling the compressor to operate at a third preset frequency, and controlling the fan of the indoor unit to operate at a third rotating speed, wherein the third rotating speed is less than or equal to the first rotating speed.
When the moisture content in the indoor room is less than or equal to the target set moisture content and the temperature value of the inner coil is less than or equal to the dew point temperature value, the dehumidification treatment on the current environment is not needed, so that the fan of the indoor unit is controlled to operate at a lower rotating speed, and the compressor is controlled to maintain a lower working frequency.
In one embodiment, the adjusting the indoor humidity according to the comparison result comprises:
and judging whether the difference value between the indoor temperature value and the set temperature value is within a first preset range, if not, controlling the compressor to run at a fourth preset frequency, and controlling the rotating speed of the fan of the indoor unit to be kept unchanged, wherein the fourth preset frequency is the minimum value of the working frequency of the compressor.
To explain the method of this embodiment in more detail, the following takes its specific embodiment as an example to further analyze it.
Referring to fig. 2, when the method disclosed by the present invention is used for air conditioning temperature and humidity control, the method includes the following steps:
the implementation steps of the technical scheme adopted by the patent comprise the following steps:
step S1, after the air conditioner is started, the air conditioner starts the temperature and humidity double control function, or after receiving the temperature and humidity control instruction of the user, the air conditioner responds to the instruction to start the temperature and humidity double control function;
step S2, detecting indoor temperature T by indoor environment temperature sensorIndoor useAnd the environment humidity sensor detects the indoor relative humidity RHIndoor useThe inner coil temperature sensor detects the temperature T of the inner coilInner pipeCalculating the real-time moisture content dIndoor useReal time dew point temperature TDew pointObtaining the set temperature TIs provided withTarget set moisture content dIs provided with；
Step S3, determine TIndoor useAnd TIs provided withAnd if the difference value is larger than the threshold value A, the compressor operates at high frequency, the indoor unit fan operates at the highest speed, and otherwise, the step S4 is executed. Wherein the threshold a can be 1 to 10 ℃, in one embodiment 3 ℃;
step S4, continue to judge TIndoor useAnd TIs provided withDifference, e.g. < T at-0.5 ℃Indoor use-TIs provided withIf the temperature is less than or equal to A ℃, entering S5, otherwise, the compressor runs at low frequency, and the rotating speed of the indoor unit is unchanged;
step S5, compare dIndoor useAnd dIs provided withSize, TInner pipeAnd TDew pointSize, and performing step S6, step S7, step S8, step S9, respectively, according to the comparison result;
step S6, dIndoor use＞dIs provided withAnd TInner pipe＞TDew pointThe compressor operates according to a second frequency, and the rotating speed of the fan of the indoor unit is controlled to be reduced;
step S7, dIndoor use＞dIs provided withAnd TInner pipe≤TDew pointThe compressor runs at a second frequency, and the rotating speed of the fan of the indoor unit is kept unchanged;
step S8, dIndoor use≤dIs provided withAnd TInner pipe＞TDew pointThe compressor operates according to the third frequency, and the rotating speed of the fan of the indoor unit is kept unchanged;
step S9, dIndoor use≤dIs provided withAnd TInner pipe≤TDew pointAnd the compressor operates according to the third frequency, and the rotating speed of the fan of the indoor unit is controlled to be increased.
In the above step, the second frequency is less than or equal to the highest working frequency of the compressor, and the third frequency is less than the second frequency.
According to the method disclosed by the embodiment, the frequency of the compressor and the air speed of the fan of the indoor unit are controlled, so that the rapid cooling and humidity control are achieved, the indoor temperature and humidity reach the human body comfortable range, the use comfort of a user is improved, and the requirements of temperature and humidity double control of the user are met.
Example 2
The embodiment discloses an air conditioner temperature and humidity control device, as shown in fig. 3, including compressor 60 and indoor unit fan 40, the air conditioner temperature and humidity control device still includes: an indoor environment temperature sensor 10, an inner coil temperature sensor 20, an indoor environment humidity sensor 30 and a controller 50; the compressor 60, the indoor unit fan 40, the indoor environment temperature sensor 10, the inner coil temperature sensor 20 and the indoor environment humidity sensor 30 are all electrically connected to the controller 50.
The indoor environment temperature sensor 30, the inner coil temperature sensor 20 and the indoor environment temperature sensor 30 are respectively used for acquiring an indoor temperature value, an inner coil temperature value and an indoor relative humidity value;
the controller 50 is configured to determine whether a difference between the initial indoor temperature value and a set temperature value satisfies a first preset condition; if so, controlling the compressor to operate at a first preset frequency, and simultaneously controlling the indoor unit fan to operate at a first rotating speed; the first preset frequency is the maximum value of the working frequency of the compressor, and the first rotating speed is the maximum value of the working rotating speed of the fan of the indoor unit; (ii) a
Judging that the difference value between the current indoor temperature value and the set temperature value meets a second preset condition; and if so, adjusting the frequency of the compressor and the rotating speed of the indoor fan according to the indoor temperature value, the indoor relative humidity value and the inner coil temperature value.
Further, the controller 50 includes: a calculation module and a control module;
the calculation module is used for calculating dew point temperature and indoor moisture content according to the indoor relative humidity value and the indoor temperature value;
and the control module is used for adjusting the frequency of the compressor and the rotating speed of the indoor fan according to the temperature value of the inner coil, the dew point temperature and the indoor moisture content.
Example 3
This embodiment still discloses an air conditioner on disclosing above-mentioned air conditioner temperature and humidity control device's basis, include air conditioner temperature and humidity control device.
The air conditioner is provided with the air conditioner temperature and humidity control device, the control module in the air conditioner humidity control device is provided with the air conditioner temperature and humidity control method, and the temperature and humidity of the air conditioner can be adjusted through the steps disclosed in the method, so that the air conditioner control method with both temperature adjustment and humidity adjustment is realized.
The invention discloses an air conditioner temperature and humidity control method, an air conditioner temperature and humidity control device and an air conditioner, wherein an indoor temperature value, an indoor relative humidity value and an inner coil temperature value are collected; judging whether the difference value between the indoor temperature value and a set temperature value is larger than a preset first threshold value or not; if so, controlling to adjust the indoor temperature until the difference value between the adjusted indoor temperature value and the set temperature value is smaller than the preset first threshold value; and adjusting the indoor humidity according to the adjusted indoor temperature value, the set temperature value, the indoor relative humidity value, the temperature value of the inner coil and the target set moisture content. In the embodiment of the invention, when the temperature is not in the comfortable area, the indoor temperature quickly reaches the comfortable temperature interval through the high-frequency operation of the compressor, and the relative humidity is controlled through the fan of the indoor unit after the temperature enters the comfortable area, so that the better temperature and humidity control effect is achieved, the requirement of a user on synchronous regulation of the temperature and the humidity is met, and convenience is provided for the user to use the air conditioner.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is only limited by the appended claims
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The air conditioner temperature and humidity control method is characterized by comprising the following steps:
collecting an indoor temperature value, an indoor relative humidity value and an inner coil temperature value;
if the difference value between the indoor temperature value and the set temperature value meets a first preset condition, controlling the compressor to operate at a first preset frequency, and simultaneously controlling the fan of the indoor unit to operate at a first rotating speed; the first preset frequency is the maximum value of the working frequency of the compressor, and the first rotating speed is the maximum value of the working rotating speed of the fan of the indoor unit;
and if the difference value between the indoor temperature value and the set temperature value meets a second preset condition, adjusting the frequency of the compressor and the rotating speed of the indoor fan according to the indoor temperature value, the indoor relative humidity value and the inner coil temperature value.
2. The air conditioner temperature and humidity control method according to claim 1, wherein the step of adjusting the compressor frequency and the indoor fan rotation speed according to the indoor temperature value, the indoor relative humidity value, and the inner coil temperature value specifically includes:
calculating dew point temperature and indoor moisture content according to the indoor relative humidity value and the indoor temperature value;
and adjusting the compressor frequency and the indoor fan rotating speed according to the inner coil temperature value, the dew point temperature and the indoor moisture content.
3. The air conditioner temperature and humidity control method according to claim 1, wherein the first preset condition specifically includes: the difference value between the indoor temperature value and the set temperature value is greater than a preset first threshold value; the second preset condition specifically includes: and the difference value between the indoor temperature value and the set temperature value is less than or equal to a preset first threshold value and greater than a preset second threshold value.
4. The air conditioner temperature and humidity control method according to claim 2, wherein the step of adjusting the compressor frequency and the indoor fan rotation speed according to the internal coil temperature value, the dew point temperature and the indoor moisture content specifically comprises:
if the indoor moisture content is greater than the target set moisture content and the temperature value of the inner coil is greater than the dew point temperature value, controlling the compressor to operate at a second preset frequency and simultaneously controlling the fan of the indoor unit to operate at a second rotating speed; the second preset frequency is less than or equal to the first preset frequency, and the second rotating speed is less than the first rotating speed;
if the indoor moisture content is less than or equal to the target set moisture content and the temperature value of the inner coil is greater than the dew point temperature value, controlling the compressor to operate at a third preset frequency; wherein the third preset frequency is less than the second preset frequency;
if the indoor moisture content is less than or equal to the target set moisture content and the temperature value of the inner coil is less than or equal to the dew point temperature value, controlling the compressor to operate at a third preset frequency and simultaneously controlling the fan of the indoor unit to operate at a third rotating speed; wherein the third rotation speed is less than or equal to the first rotation speed.
5. The air conditioner temperature and humidity control method according to any one of claims 1 to 4, wherein the step of adjusting the compressor frequency and the indoor fan rotation speed according to the indoor temperature value, the indoor relative humidity value, and the inner coil temperature value further includes:
if the difference value between the indoor temperature value and the set temperature value does not meet a second preset condition, controlling the compressor to operate at a fourth preset frequency; wherein the fourth preset frequency is a minimum value of the working frequency of the compressor.
6. The air conditioner temperature and humidity control method according to any one of claims 1 to 4, wherein the preset first threshold value ranges from 1 ℃ to 10 ℃, and the preset second threshold value ranges from-1 ℃ to 0 ℃.
7. The utility model provides an air conditioner temperature and humidity control device, includes compressor and indoor set fan, its characterized in that still includes: an indoor environment temperature sensor, an inner coil temperature sensor, an indoor environment humidity sensor and a controller;
the indoor environment temperature sensor, the inner coil pipe temperature sensor and the indoor environment temperature sensor are respectively used for acquiring an indoor temperature value, an inner coil pipe temperature value and an indoor relative humidity value;
the controller is used for judging whether the difference value between the initial indoor temperature value and the set temperature value meets a first preset condition or not; if so, controlling the compressor to operate at a first preset frequency, and simultaneously controlling the indoor unit fan to operate at a first rotating speed; the first preset frequency is the maximum value of the working frequency of the compressor, and the first rotating speed is the maximum value of the working rotating speed of the fan of the indoor unit; (ii) a
Judging that the difference value between the current indoor temperature value and the set temperature value meets a second preset condition; and if so, adjusting the frequency of the compressor and the rotating speed of the indoor fan according to the indoor temperature value, the indoor relative humidity value and the inner coil temperature value.
8. The air conditioning temperature and humidity control device according to claim 7, wherein the controller includes: a calculation module and a control module;
the calculation module is used for calculating dew point temperature and indoor moisture content according to the indoor relative humidity value and the indoor temperature value;
and the control module is used for adjusting the frequency of the compressor and the rotating speed of the indoor fan according to the temperature value of the inner coil, the dew point temperature and the indoor moisture content.
9. The air conditioner temperature and humidity control device of claim 7 or 8, wherein the preset first threshold value ranges from 1 ℃ to 10 ℃, and the preset second threshold value ranges from-1 ℃ to 0 ℃.
10. An air conditioner characterized by comprising the air conditioning temperature and humidity control device according to any one of claims 7 to 9.
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