CN105783185A - Control method and device for preventing condensation of air conditioner - Google Patents
Control method and device for preventing condensation of air conditioner Download PDFInfo
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- CN105783185A CN105783185A CN201610125668.8A CN201610125668A CN105783185A CN 105783185 A CN105783185 A CN 105783185A CN 201610125668 A CN201610125668 A CN 201610125668A CN 105783185 A CN105783185 A CN 105783185A
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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
- 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
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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
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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
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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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
-
- 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
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
Abstract
The invention discloses a control method and device for preventing condensation of an air conditioner. The method comprises the steps of when the air conditioner is in the refrigeration mode, acquiring the current air volume grade of an indoor unit of the air conditioner; acquiring the operating condensation prevention frequency of a compressor of the air conditioner when the indoor unit is in the current air volume grade and the condensation does not occur; acquiring the indoor temperature of the space where the indoor unit of the air conditioner is positioned, and a set target temperature in real time; and dynamically adjusting the operating frequency of the compressor of the air conditioner according to the condensation prevention frequency, the indoor temperature and the target temperature. According to the control method, the operating frequency of the compressor of the air conditioner is limited and reduced in a targeted manner according to the air volume grade of the indoor unit of the air conditioner, the operating frequency of the compressor is greatly reduced when the air volume of the indoor unit is relatively large, and the problem that the refrigerating capacity is insufficient due to the situation that the operating frequency of the compressor is reduced unilaterally to relieve condensation is relieved.
Description
Technical field
The present invention relates to rotating speed controllable type refrigeration and air-conditioning technical field, particularly relate to a kind of air-conditioner condensation prevention control method and device.
Background technology
Progress along with science and technology, compressor variable ratio frequency changer, the air-conditioner (hereinafter referred to as air-conditioner) of indoor set blower fan variable-ratio is widely applied, but, air-conditioner is under the environment that humidity is bigger during long-play, owing to there is the temperature difference between the outer surface of air-conditioner and leaving air temp, and the temperature difference is more big, indoor environment humidity is more big, more easily produce dew condensation phenomenon (i.e. steam coagulation in air near air conditioner wind outlet on), the globule produced by the condensation of long time integration can become larger and cause the air-conditioner air-supply situation with water, destroy the indoor environment of user.
Most of air-conditioner production firms avoid air-conditioner dew condensation phenomenon occur by unilaterally reducing the running frequency of cooler compressor, but, this mode reduces the output of Air conditioner refrigerating capacity to a certain extent, it is easy to cause the problem that air-conditioner refrigeration is not enough.
Summary of the invention
Present invention is primarily targeted at a kind of air-conditioner condensation prevention control method of offer and device, it is intended to alleviate air-conditioner and unilaterally reduce compressor operating frequency and cause the technical problem that refrigeration is not enough.
For achieving the above object, a kind of air-conditioner condensation prevention control method provided by the invention, described air-conditioner progress control method includes:
When air-conditioner is in refrigeration mode, obtain the current air quantity grade of air conditioner room unit；
Obtain cooler compressor to be under described current air quantity grade at indoor set and occur without the anti-condensation frequency that condensation runs；
Obtain the indoor temperature in space residing for air conditioner room unit and the target temperature of setting in real time；
According to described anti-condensation frequency, indoor temperature and target temperature, dynamically adjust the running frequency of cooler compressor.
Preferably, described according to described anti-condensation frequency, indoor temperature and target temperature, the step of the running frequency dynamically adjusting cooler compressor includes:
Obtain the temperature difference of described indoor temperature and target temperature；
When described temperature difference is in the first default temperature range, then heighten the running frequency of cooler compressor and this heighten after running frequency be not more than described anti-condensation frequency；
When described temperature difference is in the second default temperature range, then turning down the running frequency of cooler compressor, the temperature value in wherein said first temperature range is more than the temperature value in the second temperature range.
Preferably, also include after the described indoor temperature of described acquisition and the step of the temperature difference of target temperature:
When described temperature difference is in three temperature ranges, then the running frequency keeping cooler compressor is constant；
When described temperature difference is in four temperature ranges, then the running frequency of cooler compressor being set to zero, the temperature value in wherein said 4th temperature range is less than the temperature value in the 3rd temperature range.
Preferably, described acquisition cooler compressor also includes after indoor set is in the step occurring without the anti-condensation frequency that condensation runs under described current air quantity grade:
If air-conditioner is first power on refrigeration in predetermined interval duration, then controls cooler compressor and run default refrigeration duration with default start frequency；
The running frequency of cooler compressor is adjusted to described anti-condensation frequency by described default start frequency.
Preferably, described when air-conditioner is in refrigeration mode, also include after the step of the current air quantity grade of acquisition air conditioner room unit:
When air quantity grade air conditioner room unit being detected changes, using the air quantity grade after change as new current air quantity grade.
The present invention also provides for a kind of anti-condensation control device of air-conditioner, and described air-conditioner operating control device includes:
Air quantity acquisition module, for when air-conditioner is in refrigeration mode, obtaining the current air quantity grade of air conditioner room unit；
Frequency acquisition module, is under described current air quantity grade at indoor set and occurs without, for obtaining cooler compressor, the anti-condensation frequency that condensation runs；
Temperature acquisition module, for obtaining the indoor temperature in space residing for air conditioner room unit and the target temperature of setting in real time；
Frequency regulation block, for according to described anti-condensation frequency, indoor temperature and target temperature, dynamically adjusting the running frequency of cooler compressor.
Preferably, described frequency regulation block includes:
Temperature difference acquiring unit, for obtaining the temperature difference of described indoor temperature and target temperature；
First adjustment unit, for when described temperature difference is in the first default temperature range, then heighten the running frequency of cooler compressor and this heighten after running frequency be not more than described anti-condensation frequency；
Second adjustment unit, for when described temperature difference is in the second default temperature range, then turning down the running frequency of cooler compressor, the temperature value in wherein said first temperature range is more than the temperature value in the second temperature range.
Preferably, described frequency regulation block also includes:
3rd adjustment unit, for when described temperature difference is in three temperature ranges, then the running frequency keeping cooler compressor is constant；
4th adjustment unit, for when described temperature difference is in four temperature ranges, then the running frequency of cooler compressor being set to zero, the temperature value in wherein said 4th temperature range is less than the temperature value in the 3rd temperature range.
Preferably, obtaining cooler compressor after indoor set is under described current air quantity grade and occurs without the anti-condensation frequency that condensation runs, the anti-condensation control device of described air-conditioner also includes:
Start refrigeration module, if being first power on refrigeration in predetermined interval duration for air-conditioner, then controls cooler compressor and runs default refrigeration duration with default start frequency；And the running frequency of cooler compressor is adjusted to described anti-condensation frequency by described default start frequency.
Preferably, described air quantity acquisition module is additionally operable to:
When air quantity grade air conditioner room unit being detected changes, using the air quantity grade after change as new current air quantity grade.
The present invention is by when air-conditioner is in refrigeration mode, obtaining the current air quantity grade of air conditioner room unit；Then obtain cooler compressor to be under current air quantity grade at indoor set and occur without the anti-condensation frequency that condensation runs；Obtain the indoor temperature in space residing for air conditioner room unit and the target temperature of setting in real time；Finally according to anti-condensation frequency, indoor temperature and target temperature, dynamically adjust the running frequency of cooler compressor, thus air quantity grade according to air conditioner room unit targetedly, limit and turn down the running frequency of cooler compressor, avoid also significantly turning down the running frequency of compressor when indoor set air quantity is bigger, thus alleviating because unilateral reduction compressor operating frequency is with the not enough problem of the refrigerating capacity that relaxes condensation and cause.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of air-conditioner condensation prevention control method first embodiment of the present invention；
Fig. 2 is according to anti-condensation frequency, indoor temperature and target temperature in air-conditioner condensation prevention control method the second embodiment of the present invention, dynamically adjusts the refinement schematic flow sheet of the step of the running frequency of cooler compressor；
Fig. 3 is according to anti-condensation frequency, indoor temperature and target temperature in air-conditioner condensation prevention control method the 3rd embodiment of the present invention, dynamically adjusts the refinement schematic flow sheet of the step of the running frequency of cooler compressor；
Fig. 4 is the schematic flow sheet of air-conditioner condensation prevention control method the 4th embodiment of the present invention；
Fig. 5 is the schematic flow sheet of air-conditioner condensation prevention control method the 5th embodiment of the present invention；
Fig. 6 is the high-level schematic functional block diagram of the anti-condensation control device first embodiment of air-conditioner of the present invention；
Fig. 7 is the refinement high-level schematic functional block diagram of air-conditioner of the present invention anti-condensation control device the second embodiment medium frequency adjusting module；
Fig. 8 is the refinement high-level schematic functional block diagram of anti-condensation control device the 3rd embodiment medium frequency adjusting module of air-conditioner of the present invention；
Fig. 9 is the high-level schematic functional block diagram of air-conditioner of the present invention anti-condensation control device the 4th embodiment；
Figure 10 is air-conditioner condensation prevention control method application scenarios schematic diagram of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
For being best understood from the present invention, providing a kind of air-conditioner condensation prevention control method at this, in air-conditioner progress control method first embodiment, with reference to Fig. 1, the method includes:
Step S10, when air-conditioner is in refrigeration mode, obtains the current air quantity grade of air conditioner room unit；
After user opens air-conditioner (i.e. the air-conditioner of compressor variable ratio frequency changer, indoor set blower fan variable speed speed in the present invention), air-conditioner detects the mode of operation of air-conditioner in real time, the mode of operation of air-conditioner generally comprises refrigeration mode, heating mode, dehumidification mode, ventilatory pattern etc., be in heating mode or ventilatory pattern when air-conditioner, air-conditioner does not have dew condensation phenomenon；When being in refrigeration mode or dehumidification mode when air-conditioner, if air-conditioner is in the interior space of higher levels of humidity, easily there is dew condensation phenomenon in air-conditioner.Refrigeration mode in the present invention includes the refrigeration mode on conventional meaning and dehumidification mode.
When air-conditioner is in refrigeration module, show that air-conditioner occurs the risk of dew condensation phenomenon, obtain the current air quantity grade of air conditioner room unit, namely the air quantity grade residing for blower fan air output of current time air conditioner room unit is obtained, this air quantity grade can set according to demand, such as air quantity grade includes high air quantity grade, middle air quantity grade and low air quantity grade, and the air quantity interval size corresponding to air quantity grade is also dependent on requirements set.
Step S20, obtains cooler compressor and is under current air quantity grade at indoor set and occurs without the anti-condensation frequency that condensation runs；
Air conditioner room unit is under different air quantity grades, cooler compressor has different anti-condensation frequencies, air quantity grade and anti-condensation frequency one_to_one corresponding, such as, when air quantity grade is high air quantity grade, corresponding anti-condensation frequency Fa is 65Hz, and when air quantity grade is middle air quantity grade, corresponding anti-condensation frequency Fb is 56Hz, when air quantity grade is low air quantity grade, corresponding anti-condensation frequency Fc is 46Hz.
Anti-condensation frequency is preferably cooler compressor and is under current air quantity grade at indoor set and occurs without the very big running frequency that condensation can run, such as, when air conditioner room unit is in high air quantity grade, ensureing that dew condensation phenomenon does not occur indoor set, the frequency that cooler compressor can run is 65Hz, then the anti-condensation frequency of air-conditioner current time is 65Hz.Additionally, the corresponding relation of anti-condensation frequency and current air quantity grade and anti-condensation frequency values are all draw by experiment and be stored in advance in the control chip of air-conditioner.
Anti-condensation frequency show that being based on indoor set air quantity is less susceptible to occur that more greatly the principle of condensation draws, this is because dew condensation phenomenon is owing to air conditioner room unit temperature is too low and the indoor temperature excessive temperature differentials in space, indoor set place causes, if indoor set air quantity is bigger, in indoor set, vaporizer is with outside air heat transfer effect preferably, thus the temperature difference of indoor set internal temperature and indoor temperature is unlikely to excessive, so air conditioner room unit air quantity is less susceptible to condensation occur more greatly.Anti-condensation frequency can draw by experiment, experimentation is substantially: first keep the air quantity of air conditioner room unit to be in certain interval, then cooler compressor frequency is incrementally increased until condensation occurs in indoor set, thus indoor set being occurred without the limiting frequency of condensation as anti-condensation frequency.
Step S30, obtains the indoor temperature in space residing for air conditioner room unit and the target temperature of setting in real time；
The indoor temperature in space residing for air conditioner room unit is obtained in real time by the temperature sensor being located at outside air conditioner room unit, and the control chip gathering air-conditioner receives that user's control instruction generates or acquiescence target temperature, namely target temperature is the temperature set by user, or target temperature is the default objects temperature prestored adopted because not receiving user instruction after air-conditioner starts refrigeration mode.
Step S40, according to anti-condensation frequency, indoor temperature and target temperature, dynamically adjusts the running frequency of cooler compressor.
When indoor set is in current air quantity grade, according to the running frequency of anti-condensation frequency limitation cooler compressor less than this anti-condensation frequency, and according to indoor temperature and target temperature, dynamically adjust the running frequency of cooler compressor.Alternatively, when indoor temperature is higher than target temperature, the running frequency of cooler compressor is heightened；When indoor temperature is lower than target temperature, turn down the running frequency of cooler compressor.Alternatively, with reference to the running frequency of the air quantity grade of the electric-controlled box b co-controlling indoor set blower fan in Figure 10, the electric-controlled box a in indoor set D1 and off-premises station D2 and compressor of outdoor unit.
In the present embodiment, by when air-conditioner is in refrigeration mode, obtaining the current air quantity grade of air conditioner room unit；Then obtain cooler compressor to be under current air quantity grade at indoor set and occur without the anti-condensation frequency that condensation runs；Obtain the indoor temperature in space residing for air conditioner room unit and the target temperature of setting in real time；Finally according to anti-condensation frequency, indoor temperature and target temperature, dynamically adjust the running frequency of cooler compressor, thus air quantity grade according to air conditioner room unit targetedly, limit and turn down the running frequency of cooler compressor, avoid also significantly turning down the running frequency of compressor when indoor set air quantity is bigger, thus alleviating because unilateral reduction compressor operating frequency is with the not enough problem of the refrigerating capacity that relaxes condensation and cause.
Further, on the basis of air-conditioner condensation prevention control method first embodiment of the present invention, it is proposed to air-conditioner condensation prevention control method the second embodiment, with reference to Fig. 2, in a second embodiment, step S40 includes:
Step S41, obtains the temperature difference of indoor temperature and target temperature；
Calculate indoor temperature T1With target temperature TSTemperature difference Δ T, i.e. Δ T=(T1-TS).Wherein, indoor temperature is the temperature in space, current time indoor set place, and target temperature is the temperature that the need that current time air-conditioner is set reach.
Step S42, when temperature difference is in the first default temperature range, then heighten the running frequency of cooler compressor and this heighten after running frequency be not more than anti-condensation frequency；
Such as the first temperature range can be [1, + ∞), when temperature difference is be more than or equal to 1 degree Celsius, show that indoor temperature differs bigger with target temperature, need to increase the refrigerating capacity of air-conditioner, therefore heighten the running frequency of cooler compressor, and this heighten after running frequency be not more than anti-condensation frequency.Alternatively, the amplitude of heightening of the running frequency of cooler compressor can determine according to temperature extent, for instance temperature difference is more big with the difference of 1, and the amplitude of heightening of the running frequency of cooler compressor is more big.
Step S43, when temperature difference is in the second default temperature range, then turns down the running frequency of cooler compressor, and wherein the temperature value in the first temperature range is more than the temperature value in the second temperature range.
Such as the second temperature range can be [-1 ,-0.5), when temperature difference is between-1 degree Celsius to-0.5 degree Celsius, it was shown that indoor temperature is slightly below target temperature, it is necessary to reduce the refrigerating capacity of air-conditioner, therefore turn down the running frequency of cooler compressor.Alternatively, amplitude of the turning down user of the running frequency turning down cooler compressor can sets itself according to demand.
In the present embodiment, by the running frequency of guarantee cooler compressor less than current anti-condensation frequency, and residing for the temperature difference of indoor temperature and target temperature temperature range, dynamically adjust the running frequency of cooler compressor, thus under the premise preventing condensation, guarantee refrigerating capacity, reduce the output of cooler compressor, improve the environmental protection and energy saving of air-conditioner.
Further, on the basis of air-conditioner condensation prevention control method the second embodiment of the present invention, it is proposed to air-conditioner condensation prevention control method the 3rd embodiment, with reference to Fig. 3, in the third embodiment, also include after step S41:
Step S44, when temperature difference is in three temperature ranges, then the running frequency keeping cooler compressor is constant；
Such as the 3rd temperature range can be [-0.5,1), when temperature difference is between-0.5 degree Celsius to 1 degree Celsius, show that indoor temperature basically reaches target temperature, and owing to space, indoor set place and space outerpace have heat transmission, now need to keep the interior space to be near target temperature, it is necessary to keep the refrigerating capacity of air-conditioner, therefore keep the running frequency of cooler compressor.
Step S45, when temperature difference is in four temperature ranges, then sets to zero the running frequency of cooler compressor, and wherein the temperature value in the 4th temperature range is less than the temperature value in the 3rd temperature range.
Such as the 4th temperature range can be (-∞,-1], when temperature difference is less than or equal to-1 degree Celsius, surface indoor temperature is more lower than target temperature, the demand that the temperature of the refrigeration interior space also is able to meet user to target temperature is carried out in short time without air-conditioner, therefore the running frequency of cooler compressor is set to zero, namely close air-conditioner compressor, until temperature difference is more than-1 degree Celsius.
In the present embodiment, by when indoor temperature and target temperature are essentially identical (when temperature difference goes to zero substantially), the running frequency keeping cooler compressor is constant, makes indoor temperature be continually maintained in target temperature adnexa, to provide the user a desirable temperature environment；When indoor temperature is more lower than target temperature, control the out of service of cooler compressor, thus under the premise preventing condensation, guarantee refrigerating capacity, reducing the output of cooler compressor, further increasing the environmental protection and energy saving of air-conditioner.
Further, on the basis of air-conditioner condensation prevention control method first embodiment of the present invention, it is proposed to air-conditioner condensation prevention control method the 4th embodiment, with reference to Fig. 4, in the fourth embodiment, also include after step S20:
Step S50, if air-conditioner is first power on refrigeration in predetermined interval duration, then controls cooler compressor and runs default refrigeration duration with default start frequency；
Step S60, is adjusted to anti-condensation frequency by the running frequency of cooler compressor by presetting start frequency.
If air-conditioner is not powered on refrigeration in predetermined interval duration (such as 5 hours), show that air conditioner room unit internal temperature and indoor temperature are essentially identical, indoor set internal temperature is higher, owing to indoor set temperature gradually reduces in process of refrigerastion, even if so cooler compressor runs a period of time with upper frequency, the temperature of indoor set produces condensation without having big difference with indoor temperature, so when judging to first power in air-conditioner is as predetermined interval duration, control cooler compressor and preset refrigeration duration with default start frequency (this presets start frequency can for the maximum frequency of operation of cooler compressor) operation, it is corresponding with presetting start frequency to preset refrigeration duration, and it is more short to preset the more big then default refrigeration duration of start frequency.When cooler compressor runs default refrigeration duration with default start frequency, the running frequency of cooler compressor is adjusted to anti-condensation frequency by presetting start frequency, it is prevented that condensation occurs in air conditioner room unit.
In the present embodiment, by when judging to first power on refrigeration in air-conditioner is as predetermined interval duration, control cooler compressor and run default refrigeration duration with bigger default start frequency, then the running frequency of cooler compressor is adjusted to anti-condensation frequency by presetting start frequency, thus under ensureing the premise that air conditioner room unit occurs without condensation, improve the refrigerating efficiency of air-conditioner, meet the demand of user's fast-refrigerating.
Additionally, on the basis of air-conditioner condensation prevention control method second or third embodiments of the present invention, also include after step S20:
Step S50, if air-conditioner is first power on refrigeration in predetermined interval duration, then controls cooler compressor and runs default refrigeration duration with default start frequency；
Step S60, is adjusted to anti-condensation frequency by the running frequency of cooler compressor by presetting start frequency.
Further, on the basis of air-conditioner condensation prevention control method first embodiment of the present invention, it is proposed to air-conditioner condensation prevention control method the 5th embodiment, with reference to Fig. 5, in the 5th embodiment, also include after step S10:
Step S70, when air quantity grade air conditioner room unit being detected changes, using the air quantity grade after change as new current air quantity grade.
Air-conditioner detects the air quantity grade of indoor set blower fan in real time, if detecting when the air quantity grade of air conditioner room unit changes, using the air quantity grade after change as new current air quantity grade, the anti-condensation Frequency Synchronization of compressor is updated to the anti-condensation frequency that new current air quantity grade is corresponding simultaneously, thus when the air quantity grade of indoor set changes, upgrade in time the anti-condensation frequency of compressor, avoids occurring in indoor set condensation further.
Additionally, on air-conditioner condensation prevention control method of the present invention second, third or the basis of the 4th embodiment, also include after step S10:
Step S70, when air quantity grade air conditioner room unit being detected changes, using the air quantity grade after change as new current air quantity grade.
The present invention also provides for a kind of anti-condensation control device of air-conditioner, and in air-conditioner operating control device first embodiment, with reference to Fig. 6, this device includes:
Air quantity acquisition module 10, for when air-conditioner is in refrigeration mode, obtaining the current air quantity grade of air conditioner room unit；
After user opens air-conditioner (i.e. the air-conditioner of compressor variable ratio frequency changer, indoor set blower fan variable speed speed in the present invention), air-conditioner detects the mode of operation of air-conditioner in real time, the mode of operation of air-conditioner generally comprises refrigeration mode, heating mode, dehumidification mode, ventilatory pattern etc., be in heating mode or ventilatory pattern when air-conditioner, air-conditioner does not have dew condensation phenomenon；When being in refrigeration mode or dehumidification mode when air-conditioner, if air-conditioner is in the interior space of higher levels of humidity, easily there is dew condensation phenomenon in air-conditioner.Refrigeration mode in the present invention includes the refrigeration mode on conventional meaning and dehumidification mode.
When air-conditioner is in refrigeration module, show that air-conditioner occurs the risk of dew condensation phenomenon, air quantity acquisition module 10 obtains the current air quantity grade of air conditioner room unit, namely the air quantity grade residing for blower fan air output of current time air conditioner room unit is obtained, this air quantity grade can set according to demand, such as air quantity grade includes high air quantity grade, middle air quantity grade and low air quantity grade, and the air quantity interval size corresponding to air quantity grade is also dependent on requirements set.
Frequency acquisition module 20, is under current air quantity grade at indoor set and occurs without, for obtaining cooler compressor, the anti-condensation frequency that condensation runs；
Air conditioner room unit is under different air quantity grades, cooler compressor has different anti-condensation frequencies, air quantity grade and anti-condensation frequency one_to_one corresponding, such as, when air quantity grade is high air quantity grade, corresponding anti-condensation frequency Fa is 65Hz, and when air quantity grade is middle air quantity grade, corresponding anti-condensation frequency Fb is 56Hz, when air quantity grade is low air quantity grade, corresponding anti-condensation frequency Fc is 46Hz.
Anti-condensation frequency is preferably cooler compressor and is under current air quantity grade at indoor set and occurs without the very big running frequency that condensation can run, such as, when air conditioner room unit is in high air quantity grade, ensureing that dew condensation phenomenon does not occur indoor set, the frequency that cooler compressor can run is 65Hz, then the anti-condensation frequency of air-conditioner current time is 65Hz.Additionally, the corresponding relation of anti-condensation frequency and current air quantity grade and anti-condensation frequency values are all draw by experiment and be stored in advance in the control chip of air-conditioner.
Anti-condensation frequency show that being based on indoor set air quantity is less susceptible to occur that more greatly the principle of condensation draws, this is because dew condensation phenomenon is owing to air conditioner room unit temperature is too low and the indoor temperature excessive temperature differentials in space, indoor set place causes, if indoor set air quantity is bigger, in indoor set, vaporizer is with outside air heat transfer effect preferably, thus the temperature difference of indoor set internal temperature and indoor temperature is unlikely to excessive, so air conditioner room unit air quantity is less susceptible to condensation occur more greatly.Anti-condensation frequency can draw by experiment, experimentation is substantially: first keep the air quantity of air conditioner room unit to be in certain interval, then cooler compressor frequency is incrementally increased until condensation occurs in indoor set, thus indoor set being occurred without the limiting frequency of condensation as anti-condensation frequency.
Temperature acquisition module 30, for obtaining the indoor temperature in space residing for air conditioner room unit and the target temperature of setting in real time；
The indoor temperature in space residing for the air conditioner room unit being located at the temperature sensor Real-time Collection outside air conditioner room unit is obtained by temperature acquisition module 30, and the control chip gathering air-conditioner receives that user's control instruction generates or acquiescence target temperature, namely target temperature is the temperature set by user, or target temperature is the default objects temperature prestored adopted because not receiving user instruction after air-conditioner starts refrigeration mode.
Frequency regulation block 40, for according to anti-condensation frequency, indoor temperature and target temperature, dynamically adjusting the running frequency of cooler compressor.
When indoor set is in current air quantity grade, frequency regulation block 40 less than this anti-condensation frequency, and according to indoor temperature and target temperature, dynamically adjusts the running frequency of cooler compressor according to the running frequency of anti-condensation frequency limitation cooler compressor.Alternatively, when indoor temperature is higher than target temperature, the running frequency of cooler compressor is heightened；When indoor temperature is lower than target temperature, turn down the running frequency of cooler compressor.
In the present embodiment, by when air-conditioner is in refrigeration mode, air quantity acquisition module 10 obtains the current air quantity grade of air conditioner room unit；Then frequency acquisition module 20 obtains cooler compressor and is under current air quantity grade at indoor set and occurs without the anti-condensation frequency that condensation runs；Temperature acquisition module 30 obtains the indoor temperature in space residing for air conditioner room unit and the target temperature of setting in real time；Last frequency adjusting module 40 is according to anti-condensation frequency, indoor temperature and target temperature, dynamically adjust the running frequency of cooler compressor, thus air quantity grade according to air conditioner room unit targetedly, limit and turn down the running frequency of cooler compressor, avoid also significantly turning down the running frequency of compressor when indoor set air quantity is bigger, thus alleviating because unilateral reduction compressor operating frequency is with the not enough problem of the refrigerating capacity that relaxes condensation and cause.
Further, on the basis of the anti-condensation control device first embodiment of air-conditioner of the present invention, it is proposed to anti-condensation control device the second embodiment of air-conditioner, with reference to Fig. 7, in a second embodiment, frequency regulation block 40 includes:
Temperature difference acquiring unit 41, for obtaining the temperature difference of indoor temperature and target temperature；
Temperature difference acquiring unit 41 calculates indoor temperature T1With target temperature TSTemperature difference Δ T, i.e. Δ T=(T1-TS).Wherein, indoor temperature is the temperature in space, current time indoor set place, and target temperature is the temperature that the need that current time air-conditioner is set reach.
First adjustment unit 42, for when temperature difference is in the first default temperature range, then heighten the running frequency of cooler compressor and this heighten after running frequency be not more than anti-condensation frequency；
Such as the first temperature range can be [1, + ∞), when temperature difference is be more than or equal to 1 degree Celsius, show that indoor temperature differs bigger with target temperature, need to increase the refrigerating capacity of air-conditioner, therefore the first adjustment unit 42 heightens the running frequency of cooler compressor, and this heighten after running frequency be not more than anti-condensation frequency.Alternatively, the amplitude of heightening of the running frequency of cooler compressor can determine according to temperature extent, for instance temperature difference is more big with the difference of 1, and the amplitude of heightening of the running frequency of cooler compressor is more big.
Second adjustment unit 43, for when temperature difference is in the second default temperature range, then turning down the running frequency of cooler compressor, wherein the temperature value in the first temperature range is more than the temperature value in the second temperature range.
Such as the second temperature range can be [-1,-0.5), when temperature difference is between-1 degree Celsius to-0.5 degree Celsius, it was shown that indoor temperature is slightly below target temperature, need to reduce the refrigerating capacity of air-conditioner, therefore the second adjustment unit 43 turns down the running frequency of cooler compressor.Alternatively, amplitude of the turning down user of the running frequency turning down cooler compressor can sets itself according to demand.
In the present embodiment, by the running frequency of guarantee cooler compressor less than current anti-condensation frequency, and residing for the temperature difference of indoor temperature and target temperature temperature range, dynamically adjust the running frequency of cooler compressor, thus under the premise preventing condensation, guarantee refrigerating capacity, reduce the output of cooler compressor, improve the environmental protection and energy saving of air-conditioner.
Further, on the basis of anti-condensation control device the second embodiment of air-conditioner of the present invention, it is proposed to air-conditioner anti-condensation control device the 3rd embodiment, with reference to Fig. 8, in the third embodiment, frequency regulation block 40 also includes:
3rd adjustment unit 44, for when temperature difference is in three temperature ranges, then the running frequency keeping cooler compressor is constant；
Such as the 3rd temperature range can be [-0.5,1), when temperature difference is between-0.5 degree Celsius to 1 degree Celsius, show that indoor temperature basically reaches target temperature, and owing to space, indoor set place and space outerpace have heat transmission, now need to keep the interior space to be near target temperature, it is necessary to keep the refrigerating capacity of air-conditioner, therefore the 3rd adjustment unit 44 keeps the running frequency of cooler compressor.
4th adjustment unit 45, for when temperature difference is in four temperature ranges, then the running frequency of cooler compressor being set to zero, wherein the temperature value in the 4th temperature range is less than the temperature value in the 3rd temperature range.
Such as the 4th temperature range can be (-∞,-1], when temperature difference is less than or equal to-1 degree Celsius, surface indoor temperature is more lower than target temperature, the demand that the temperature of the refrigeration interior space also is able to meet user to target temperature is carried out in short time without air-conditioner, therefore the running frequency of cooler compressor is set to zero by the 4th adjustment unit 45, namely close air-conditioner compressor, until temperature difference is more than-1 degree Celsius.
In the present embodiment, by when indoor temperature and target temperature are essentially identical (when temperature difference goes to zero substantially), the running frequency keeping cooler compressor is constant, makes indoor temperature be continually maintained in target temperature adnexa, to provide the user a desirable temperature environment；When indoor temperature is more lower than target temperature, control the out of service of cooler compressor, thus under the premise preventing condensation, guarantee refrigerating capacity, reducing the output of cooler compressor, further increasing the environmental protection and energy saving of air-conditioner.
Further, on the basis of the anti-condensation control device first embodiment of air-conditioner of the present invention, air-conditioner anti-condensation control device the 4th embodiment is proposed, with reference to Fig. 9, in the fourth embodiment, obtaining cooler compressor after indoor set is under current air quantity grade and occurs without the anti-condensation frequency that condensation runs at frequency acquisition module 20, the anti-condensation control device of air-conditioner also includes:
Start refrigeration module 50, if being first power on refrigeration in predetermined interval duration for air-conditioner, then controls cooler compressor and runs default refrigeration duration with default start frequency；And the running frequency of cooler compressor is adjusted to anti-condensation frequency by presetting start frequency.
If air-conditioner is not powered on refrigeration in predetermined interval duration (such as 5 hours), show that air conditioner room unit internal temperature and indoor temperature are essentially identical, indoor set internal temperature is higher, owing to indoor set temperature gradually reduces in process of refrigerastion, even if so cooler compressor runs a period of time with upper frequency, the temperature of indoor set produces condensation without having big difference with indoor temperature, so when judging to first power in air-conditioner is as predetermined interval duration, start refrigeration module 50 controls cooler compressor and runs preset refrigeration duration with default start frequency (this default start frequency can for the maximum frequency of operation of cooler compressor), it is corresponding with presetting start frequency to preset refrigeration duration, and it is more short to preset the more big then default refrigeration duration of start frequency.When cooler compressor runs default refrigeration duration with default start frequency, the running frequency of cooler compressor is adjusted to anti-condensation frequency by presetting start frequency by start refrigeration module 50, it is prevented that condensation occurs in air conditioner room unit.
In the present embodiment, by when judging to first power on refrigeration in air-conditioner is as predetermined interval duration, control cooler compressor and run default refrigeration duration with bigger default start frequency, then the running frequency of cooler compressor is adjusted to anti-condensation frequency by presetting start frequency, thus under ensureing the premise that air conditioner room unit occurs without condensation, improve the refrigerating efficiency of air-conditioner, meet the demand of user's fast-refrigerating.
In addition, on the basis of the anti-condensation control device second or third embodiments of air-conditioner of the present invention, obtaining cooler compressor after indoor set is under current air quantity grade and occurs without the anti-condensation frequency that condensation runs at frequency acquisition module 20, the anti-condensation control device of air-conditioner also includes:
Start refrigeration module 50, if being first power on refrigeration in predetermined interval duration for air-conditioner, then controls cooler compressor and runs default refrigeration duration with default start frequency；And the running frequency of cooler compressor is adjusted to anti-condensation frequency by presetting start frequency.
Further, on the basis of the anti-condensation control device first embodiment of air-conditioner of the present invention, air quantity acquisition module 10 is additionally operable to:
When air quantity grade air conditioner room unit being detected changes, using the air quantity grade after change as new current air quantity grade.
Air-conditioner detects the air quantity grade of indoor set blower fan in real time, if detecting when the air quantity grade of air conditioner room unit changes, air quantity acquisition module 10 using the air quantity grade after change as new current air quantity grade, the anti-condensation Frequency Synchronization of compressor is updated to the anti-condensation frequency that new current air quantity grade is corresponding simultaneously, thus when the air quantity grade of indoor set changes, upgrade in time the anti-condensation frequency of compressor, avoids occurring in indoor set condensation further.
Additionally, on the anti-condensation control device of air-conditioner of the present invention second, third or the basis of the 4th embodiment, air quantity acquisition module 10 is additionally operable to:
When air quantity grade air conditioner room unit being detected changes, using the air quantity grade after change as new current air quantity grade.
Through the above description of the embodiments, those skilled in the art is it can be understood that can add the mode of required general hardware platform by software to above-described embodiment method and realize, hardware can certainly be passed through, but in a lot of situation, the former is embodiment more preferably.Based on such understanding, the part that prior art is contributed by technical scheme substantially in other words can embody with the form of software product, this computer software product is stored in a storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions with so that a station terminal equipment (can be mobile phone, computer, server, air-conditioner, or the network equipment etc.) perform each embodiment of the present invention method.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (10)
1. an air-conditioner condensation prevention control method, it is characterised in that described air-conditioner condensation prevention control method includes:
When air-conditioner is in refrigeration mode, obtain the current air quantity grade of air conditioner room unit；
Obtain cooler compressor to be under described current air quantity grade at indoor set and occur without the anti-condensation frequency that condensation runs；
Obtain the indoor temperature in space residing for air conditioner room unit and the target temperature of setting in real time；
According to described anti-condensation frequency, indoor temperature and target temperature, dynamically adjust the running frequency of cooler compressor.
2. air-conditioner condensation prevention control method as claimed in claim 1, it is characterised in that described according to described anti-condensation frequency, indoor temperature and target temperature, the step of the running frequency dynamically adjusting cooler compressor includes:
Obtain the temperature difference of described indoor temperature and target temperature；
When described temperature difference is in the first default temperature range, then heighten the running frequency of cooler compressor and this heighten after running frequency be not more than described anti-condensation frequency；
When described temperature difference is in the second default temperature range, then turning down the running frequency of cooler compressor, the temperature value in wherein said first temperature range is more than the temperature value in the second temperature range.
3. air-conditioner condensation prevention control method as claimed in claim 2, it is characterised in that also include after the described indoor temperature of described acquisition and the step of the temperature difference of target temperature:
When described temperature difference is in three temperature ranges, then the running frequency keeping cooler compressor is constant；
When described temperature difference is in four temperature ranges, then the running frequency of cooler compressor being set to zero, the temperature value in wherein said 4th temperature range is less than the temperature value in the 3rd temperature range.
4. the air-conditioner condensation prevention control method as described in claims 1 to 3 any one, it is characterised in that described acquisition cooler compressor also includes after indoor set is in the step occurring without the anti-condensation frequency that condensation runs under described current air quantity grade:
If air-conditioner is first power on refrigeration in predetermined interval duration, then controls cooler compressor and run default refrigeration duration with default start frequency；
The running frequency of cooler compressor is adjusted to described anti-condensation frequency by described default start frequency.
5. air-conditioner condensation prevention control method as claimed in claim 1, it is characterised in that described when air-conditioner is in refrigeration mode, also includes after the step of the current air quantity grade of acquisition air conditioner room unit:
When air quantity grade air conditioner room unit being detected changes, using the air quantity grade after change as new current air quantity grade.
6. the anti-condensation control device of air-conditioner, it is characterised in that described air-conditioner operating control device includes:
Air quantity acquisition module, for when air-conditioner is in refrigeration mode, obtaining the current air quantity grade of air conditioner room unit；
Frequency acquisition module, is under described current air quantity grade at indoor set and occurs without, for obtaining cooler compressor, the anti-condensation frequency that condensation runs；
Temperature acquisition module, for obtaining the indoor temperature in space residing for air conditioner room unit and the target temperature of setting in real time；
Frequency regulation block, for according to described anti-condensation frequency, indoor temperature and target temperature, dynamically adjusting the running frequency of cooler compressor.
7. the anti-condensation control device of air-conditioner as claimed in claim 1, it is characterised in that described frequency regulation block includes:
Temperature difference acquiring unit, for obtaining the temperature difference of described indoor temperature and target temperature；
First adjustment unit, for when described temperature difference is in the first default temperature range, then heighten the running frequency of cooler compressor and this heighten after running frequency be not more than described anti-condensation frequency；
Second adjustment unit, for when described temperature difference is in the second default temperature range, then turning down the running frequency of cooler compressor, the temperature value in wherein said first temperature range is more than the temperature value in the second temperature range.
8. the anti-condensation control device of air-conditioner as claimed in claim 7, it is characterised in that described frequency regulation block also includes:
3rd adjustment unit, for when described temperature difference is in three temperature ranges, then the running frequency keeping cooler compressor is constant；
4th adjustment unit, for when described temperature difference is in four temperature ranges, then the running frequency of cooler compressor being set to zero, the temperature value in wherein said 4th temperature range is less than the temperature value in the 3rd temperature range.
9. the anti-condensation control device of air-conditioner as described in claim 6 to 8 any one, it is characterized in that, obtaining cooler compressor after indoor set is under described current air quantity grade and occurs without the anti-condensation frequency that condensation runs, the anti-condensation control device of described air-conditioner also includes:
Start refrigeration module, if being first power on refrigeration in predetermined interval duration for air-conditioner, then controls cooler compressor and runs default refrigeration duration with default start frequency；And the running frequency of cooler compressor is adjusted to described anti-condensation frequency by described default start frequency.
10. the anti-condensation control device of air-conditioner as claimed in claim 6, it is characterised in that described air quantity acquisition module is additionally operable to:
When air quantity grade air conditioner room unit being detected changes, using the air quantity grade after change as new current air quantity grade.
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