CN104748318A - Air conditioner constant temperature dehumidification control method and device, air conditioner - Google Patents

Air conditioner constant temperature dehumidification control method and device, air conditioner Download PDF

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Publication number
CN104748318A
CN104748318A CN201510167060.7A CN201510167060A CN104748318A CN 104748318 A CN104748318 A CN 104748318A CN 201510167060 A CN201510167060 A CN 201510167060A CN 104748318 A CN104748318 A CN 104748318A
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temperature
air
indoor environment
conditioner
difference
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CN104748318B (en
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席战利
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—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
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an air conditioner constant temperature dehumidification control method. The air conditioner constant temperature dehumidification control method comprises the following steps: when an air conditioner is in a dehumidification mode, controlling the air conditioner to start refrigerating, starting an indoor fan, and detecting an indoor environment temperature; when the temperature difference between the detected indoor environment temperature and the target temperature is lower than a preset temperature, acquiring an outdoor temperature difference; on the basis of the indoor temperature difference and the outdoor temperature difference, determining an initial frequency of starting a compressor, and reducing the running air speed of the indoor fan to a preset air speed; acquiring a temperature difference between the existing indoor environment temperature and the target temperature; on the basis of regulation conditions met by the temperature difference between the existing indoor environment temperature and the target temperature, regulating operation parameters of the air conditioner. The invention further discloses an air conditioner constant temperature dehumidification control device and an air conditioner. With the air conditioner constant temperature dehumidification control method, the air conditioner constant temperature dehumidification control device and the air conditioner, an indoor constant environment temperature or a substantially slow temperature drop during the dehumidification process of the air conditioner can be achieved, accordingly increasing the comfort level of using the air conditioner by users. Moreover, no additional parts such as dehumidification valves are required for the air conditioner, thereby reducing the cost of the air conditioner.

Description

Constant temperature dehumidification controlling method for air conditioner and device, air-conditioner
Technical field
The present invention relates to air-conditioner field, particularly relate to a kind of constant temperature dehumidification controlling method for air conditioner and device, air-conditioner.
Background technology
Air-conditioner, in refrigerated dehumidification running, when indoor/outdoor temperature-difference is larger, just can realize refrigeration and dehumidification function by general dehumanization method; But when indoor/outdoor temperature-difference is less, the quick decline of indoor environment temperature will be caused by general dehumanization method, affect the comfortableness of user's using air-condition.
At present, the constant temperature dehumidification method that air-conditioner is general increases dehumidification valve by the indoor heat exchanger at air-conditioner.In constant temperature dehumidification process, dehumidification valve is closed, the throttling arrangement of air-conditioner is opened, dehumidification valve plays throttling action, and an indoor heat exchanger part is as evaporimeter during dehumidifying, and another part is communicated with outdoor heat exchanger, now heated by air-flow part in indoor air channel of indoor heat exchanger, another part is cooled, and is blown out, thus realize constant temperature dehumidification by the air-flow heated with the cooled indoor air outlet of air-flow from air-conditioner after mixing.This dehumanization method increases a dehumidification valve at indoor heat exchanger, indoor heat exchanger stream also more complicated due to needs, and cost increases more.
Summary of the invention
Main purpose of the present invention is to provide a kind of constant temperature dehumidification controlling method for air conditioner and device, air-conditioner, is intended to the cost reducing air-conditioner constant temperature dehumidification.
For achieving the above object, the invention provides a kind of constant temperature dehumidification controlling method for air conditioner, comprise the following steps:
S1, when air-conditioner enters dehumidification mode, control air-conditioner refrigerating operaton, priming chamber inner blower, detect indoor environment temperature;
S2, when the temperature difference of detected indoor environment temperature and target temperature is less than preset temperature, obtain indoor/outdoor temperature-difference;
S3, according to described indoor/outdoor temperature-difference, determine the original frequency of compressor operating, and the wind speed that indoor fan runs is reduced to default wind speed;
The temperature difference of S4, acquisition current indoor environment temperature and target temperature;
S5, according to the temperature difference of described current indoor environment temperature and target temperature the adjusting condition that meets, regulate the operational factor of air-conditioner.
Preferably, described step S5 comprises:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the first preset temperature difference interval, heat exchanger coils temperature in sensing chamber;
Judge whether the indoor heat exchanger coil temperature detected is greater than dew-point temperature corresponding to current indoor environment temperature;
If the indoor heat exchanger coil temperature detected is greater than dew-point temperature corresponding to current indoor environment temperature, the frequency of current for described compressor operation is increased the first predeterminated frequency value, after the second Preset Time, proceeds to step S4;
If the indoor heat exchanger coil temperature detected is less than or equal to dew-point temperature corresponding to current indoor environment temperature, the frequency of described compressor operating remains unchanged, and after the 3rd Preset Time, proceeds to step S4.
Preferably, described step S5 comprises:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the second preset temperature difference interval, the frequency of current for described compressor operation is increased the second predeterminated frequency value, after the 4th Preset Time, proceeds to step S4.
Preferably, described step S5 comprises:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the 3rd preset temperature difference interval, the frequency of current for described compressor operation is reduced the 3rd predeterminated frequency value, after the 5th Preset Time, proceeds to step S4.
Preferably, described step S5 comprises:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the 4th preset temperature difference interval, stops the operation of described compressor, after the 6th Preset Time, proceed to step S4.
Preferably, described step S5 comprises:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the 5th preset temperature difference interval, controls air-conditioner refrigerating operaton, priming chamber inner blower, detect indoor environment temperature, and proceed to step S2.
In addition, for achieving the above object, present invention also offers a kind of air-conditioner constant temperature dehumidification control device, comprising:
Detection module, for when air-conditioner enters dehumidification mode, controls air-conditioner refrigerating operaton, priming chamber inner blower, detects indoor environment temperature;
Indoor/outdoor temperature-difference acquisition module, when the temperature difference for working as detected indoor environment temperature and target temperature is less than preset temperature, obtains indoor/outdoor temperature-difference;
Determination module, for according to described indoor/outdoor temperature-difference, determines the original frequency of compressor operating, and the wind speed that indoor fan runs is reduced to default wind speed;
Acquisition module, for obtaining the temperature difference of current indoor environment temperature and target temperature;
Adjustment module, for the temperature difference according to described current indoor environment temperature and target temperature the adjusting condition that meets, regulate the operational factor of air-conditioner.
Preferably, described adjustment module comprises the first regulon, and described first regulon comprises:
Detection sub-unit, interval for being positioned at the first preset temperature difference when the temperature difference of described current indoor environment temperature and target temperature, heat exchanger coils temperature in sensing chamber;
Judgment sub-unit, for judging whether detected indoor heat exchanger coil temperature is greater than dew-point temperature corresponding to current indoor environment temperature;
Regulating subelement, if the indoor heat exchanger coil temperature for detecting is greater than dew-point temperature corresponding to current indoor environment temperature, the frequency of current for described compressor operation being increased the first predeterminated frequency value;
If the indoor heat exchanger coil temperature detected is less than or equal to dew-point temperature corresponding to current indoor environment temperature, the frequency of described compressor operating remains unchanged.
Preferably, described adjustment module comprises:
Second regulon, interval for being positioned at the second preset temperature difference when the temperature difference of described current indoor environment temperature and target temperature, the frequency of current for described compressor operation is increased the second predeterminated frequency value.
Preferably, described adjustment module comprises:
3rd regulon, interval for being positioned at the 3rd preset temperature difference when the temperature difference of described current indoor environment temperature and target temperature, the frequency of current for described compressor operation is reduced the 3rd predeterminated frequency value.
Preferably, described adjustment module comprises:
4th regulon, interval for being positioned at the 4th preset temperature difference when the temperature difference of described current indoor environment temperature and target temperature, stop the operation of described compressor.
Preferably, the 5th regulon, interval for being positioned at the 5th preset temperature difference when the temperature difference of described current indoor environment temperature and target temperature, control air-conditioner refrigerating operaton, priming chamber inner blower, detect indoor environment temperature.
In addition, for achieving the above object, present invention also offers a kind of air-conditioner, described air-conditioner is provided with indoor temperature transmitter and outdoor temperature sensor, described indoor temperature transmitter is for gathering indoor environment temperature, described outdoor temperature sensor for gathering outdoor environment temperature, described air-conditioner also comprises the control device of the air-conditioner constant temperature dehumidification of said structure, this control device is used in conjunction with indoor environment temperature and target temperature, outdoor environment temperature, regulate the operational factor of air-conditioner, and control air-conditioner and run according to this operational factor.
The embodiment of the present invention is when air-conditioner enters dehumidification mode, when the temperature difference of indoor environment temperature and target temperature is less than preset temperature, obtain indoor/outdoor temperature-difference, and according to the original frequency of indoor/outdoor temperature-difference determination compressor operating, the wind speed that indoor fan runs is reduced to default wind speed simultaneously.Then obtain the temperature difference of current indoor environment temperature and target temperature, and according to the temperature difference of current indoor environment temperature and target temperature the adjusting condition that meets, the operational factor of adjustment air-conditioner.Thus achieve air-conditioner indoor environment constant temperature or temperature in dehumidification process and decline slowly, improve moisture removal simultaneously.In addition, air-conditioner does not need to increase the parts such as dehumidification valve, reduces the dehumidifying cost of air-conditioner.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of constant temperature dehumidification controlling method for air conditioner one embodiment of the present invention;
Fig. 2 is in constant temperature dehumidification controlling method for air conditioner of the present invention, according to the temperature difference of described current indoor environment temperature and target temperature the adjusting condition that meets, regulate the refinement schematic flow sheet of the operational factor of air-conditioner;
Fig. 3 is the high-level schematic functional block diagram of air-conditioner constant temperature dehumidification control device one embodiment of the present invention;
Fig. 4 is the high-level schematic functional block diagram of adjustment module in air-conditioner constant temperature dehumidification control device of the present invention;
Fig. 5 is the high-level schematic functional block diagram of the first adjustment module in air-conditioner constant temperature dehumidification control device of the present invention;
Fig. 6 is a kind of air-conditioner one embodiment realizing constant temperature dehumidification and control 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 only in order to explain the present invention, be not intended to limit the present invention.
Essential core thought of the present invention is, air-conditioner is in desiccant cooling running, when the temperature difference of indoor environment temperature and target temperature is less than preset temperature, after obtaining indoor/outdoor temperature-difference, determine the original frequency of compressor operating, the wind speed that indoor fan runs is reduced to default wind speed simultaneously.Then obtain the temperature difference of current indoor environment temperature and target temperature the adjusting condition that meets, the operational factor of adjustment air-conditioner.Thus achieve the object of air-conditioner at constant temperature dehumidification, improve the comfortableness of user's using air-condition dehumidification process, improve moisture removal simultaneously.In addition, do not need to increase the parts such as dehumidification valve, reduce the dehumidifying cost of air-conditioner.
As shown in Figure 1, a kind of constant temperature dehumidification controlling method for air conditioner first embodiment of the present invention is shown.The constant temperature dehumidification controlling method for air conditioner of this embodiment comprises the following steps:
Step S10, when air-conditioner enters dehumidification mode, control air-conditioner refrigerating operaton, priming chamber inner blower, detect indoor environment temperature;
Step S20, when the temperature difference of detected indoor environment temperature and target temperature is less than preset temperature, obtain indoor/outdoor temperature-difference;
Step S30, according to described indoor/outdoor temperature-difference, determine the original frequency of compressor operating, and the wind speed that indoor fan runs is reduced to default wind speed;
The temperature difference of step S40, acquisition current indoor environment temperature and target temperature;
Step S50, according to the temperature difference of described current indoor environment temperature and target temperature the adjusting condition that meets, regulate the operational factor of air-conditioner.
Air-conditioner electrifying startup, when entering dehumidification mode, controls air-conditioner refrigerating operaton, priming chamber inner blower.When user is arranged the wind speed that indoor fan runs, indoor fan operates in set wind speed and effectively dehumidifies; If user does not arrange the wind speed that indoor fan runs, indoor fan will operate in the wind speed of acquiescence, along with the increase of refrigerating capacity, the wind speed of this acquiescence also strengthens thereupon, otherwise refrigerating capacity is less, the wind speed that indoor fan acquiescence is run is also less, ensure that air-conditioner can enter maximum moisture removal.Simultaneously, indoor environment temperature when detecting refrigerating operaton in real time by the indoor temperature transmitter be installed on air conditioner room unit, and when the temperature difference of detected indoor environment temperature and target temperature is less than preset temperature, detect outdoor environment temperature T by the outdoor temperature sensor be installed on air-conditioner outdoor unit 4, by the outdoor environment temperature T collected 4with indoor environment temperature T 1compare, obtain outdoor environment temperature T 4with indoor environment temperature T 1indoor/outdoor temperature-difference Δ T, i.e. indoor and outdoor payload.
It should be noted that, the temperature of target temperature set by user, this target temperature is less than outdoor environment temperature, if the target temperature set by user is greater than or equal to outdoor environment temperature, air-conditioner can automatically by target temperature T sbe reduced to outdoor environment temperature T 4, can be lower than outdoor environment temperature 2 DEG C, i.e. T s≤ T 4-2 DEG C, the amplitude of cooling can be arranged according to actual conditions, does not do further restriction at this.Such as, when outdoor environment temperature is 20 DEG C, and when the target temperature of setting is 26 DEG C, air-conditioner is then by near for target temperature 18 DEG C.This preset temperature can be set to a value, such as 1 DEG C; Also can be set to a value range allowed, such as [-2 DEG C ,+2 DEG C], are arranged according to actual conditions.
According to indoor/outdoor temperature-difference Δ T, determine the original frequency F of the compressor operating of air-conditioner 0, control compressor operating at this original frequency F 0, the wind speed that indoor fan runs is reduced to default wind speed, this wind speed preset is the wind speed that air-conditioner enters maximum moisture removal simultaneously, such as, the wind speed that indoor fan runs is reduced to 1%.In the present embodiment, indoor/outdoor temperature-difference Δ T and original frequency F will be pre-set 0mapping relations, as shown in table 1:
The original frequency F of table 1. indoor/outdoor temperature-difference Δ T and compressor operating 0between corresponding relation
ΔT＝T 4-T 1(℃) ≥8 7 6 5 4 ≤3
F 0(Hz) 45 45 45 45 35 25
From upper table 1, when indoor/outdoor temperature-difference Δ T>=8 DEG C, the original frequency F of compressor operating 0to maintain 45Hz constant; When indoor/outdoor temperature-difference Δ T≤3 DEG C, the original frequency F of compressor operating 0maintain 25Hz constant; When indoor/outdoor temperature-difference Δ T is 5 DEG C, 6 DEG C, 7 DEG C, the original frequency F of compressor operating 0be all 45Hz.Such as, the indoor environment temperature T detected 1be 24 DEG C, the outdoor environment temperature T simultaneously detected with this 4be 30 DEG C, then obtaining indoor/outdoor temperature-difference Δ T is 6 DEG C, thus need control dehumidifying time compressor operating original frequency F 0for 45Hz.Be understandable that, each value in above-mentioned table 1 can be arranged as the case may be and flexibly, does not limit the present invention.
In air-conditioner desiccant cooling running, in order to ensure to decline slowly at indoor environment constant temperature or temperature, need to monitor the change of indoor environment temperature, the i.e. current indoor environment temperature that detects of Real-time Obtaining indoor temperature transmitter, and the current indoor environment temperature of acquisition and target temperature are compared, obtain the temperature difference of current indoor environment temperature and target temperature, then according to the temperature difference of current indoor environment temperature and target temperature the adjusting condition that meets, the operational factors such as the frequency of compressor operating in air-conditioner and the wind speed of indoor fan are regulated, air-conditioner is enable to carry out constant temperature and rapid moisture removal.
The embodiment of the present invention is in air-conditioner running refrigerating dehumidification process, priming chamber inner blower operates in the wind speed of maximum moisture removal, detect indoor environment temperature, when the temperature difference of indoor environment temperature and target temperature is less than preset temperature, indoor/outdoor temperature-difference is obtained after detecting outdoor environment temperature, again according to the original frequency of indoor/outdoor temperature-difference determination compressor operating, and the wind speed that conditioning chamber inner blower runs.Then, according to the temperature difference of the current indoor environment temperature detected and target temperature the adjusting condition that meets, the operational factors such as the wind speed regulating the frequency of the compressor operating of air-conditioner and indoor fan to run.Thus ensure that indoor environment constant temperature or temperature decline slowly in air-conditioner dehumidification process, but also can moisture removal be promoted, shorten the dehumidifying time, therefore, the comfortableness of user's using air-condition dehumidification process can be improved.In addition, do not need to increase the parts such as dehumidification valve, reduce the dehumidifying cost of air-conditioner.
In order to make to regulate in the process of the operational factor of air-conditioner according to the temperature difference of current indoor environment temperature and target temperature, indoor environment temperature slowly changes, improve the comfortableness of user's using air-condition device dehumidification process, in advance the temperature difference of current indoor environment temperature and target temperature is divided into multiple temperature difference interval, and be arranged in different temperature difference interval according to the temperature difference, different adjustments is carried out to the parameter of air-conditioner.Such as, the temperature difference of current indoor environment temperature and target temperature is divided into T 11> Ts+2 DEG C, Ts+1 DEG C of < T 11≤ Ts+2 DEG C, Ts-1 DEG C of < T 11≤ Ts+1 DEG C, Ts-2 DEG C of < T 11≤ Ts-1 DEG C, T 11five temperature difference intervals such as≤Ts-2 DEG C of grade, wherein, T 11for current indoor environment temperature, Ts is target temperature.Be understandable that, the division scope in temperature difference interval can be arranged as the case may be and flexibly, does not limit the present invention.
Further, as shown in Figure 2, based on above-described embodiment, in the constant temperature dehumidification controlling method for air conditioner of this embodiment, above-mentioned steps S50 can comprise the following steps:
Step S51, when the temperature difference of described current indoor environment temperature and target temperature, to be positioned at the first preset temperature difference interval, heat exchanger coils temperature in sensing chamber;
Whether the indoor heat exchanger coil temperature that step S52, judgement detect is greater than dew-point temperature corresponding to current indoor environment temperature;
If the indoor heat exchanger coil temperature that step S53 detects is greater than dew-point temperature corresponding to current indoor environment temperature, the frequency of current for described compressor operation is increased the first predeterminated frequency value, after the second Preset Time, proceeds to step S40;
If the indoor heat exchanger coil temperature that step S54 detects is less than or equal to dew-point temperature corresponding to current indoor environment temperature, the frequency of described compressor operating remains unchanged, and after the 3rd Preset Time, proceeds to step S40.
After the temperature difference obtaining current indoor environment temperature and target temperature, judge whether the temperature difference of current indoor environment temperature and target temperature is positioned at the first preset temperature difference interval, if so, then by being installed on heat exchanger coils temperature in the temperature sensor sensing chamber in indoor heat exchanger coil pipe.It should be noted that, this first preset temperature difference interval can be Ts-1 DEG C of < T 11≤ Ts+1 DEG C, also can arrange flexibly as the case may be, not limit the present invention.Then dew-point temperature corresponding with current indoor environment temperature for detected indoor heat exchanger coil temperature is compared.
In the present embodiment, will the mapping relations of current indoor environment temperature and dew-point temperature be pre-set, as shown in table 2:
The mapping relations of table 2. current indoor environment temperature and dew-point temperature
T 11(℃) 30 29 28 27 26 25 24 23 22 21 20 19 18 17
T L(℃) 18.48 17.56 16.63 15.71 14.8 13.88 12.96 12.05 11.13 10.22 9.31 8.4 7.5 6.59
From upper table 2, along with current indoor environment temperature T 11increase, corresponding indoor heat exchanger coil temperature threshold value T lalso increase.Such as, as the current indoor environment temperature T obtained 11when being 25 DEG C, indoor environment temperature T before deserving 11corresponding indoor heat exchanger coil temperature threshold value T lit is 13.88 DEG C.Be understandable that, the dew-point temperature T that current indoor environment temperature is corresponding lcan arrange as the case may be and flexibly, not limit the present invention.
If the indoor heat exchanger coil temperature detected is greater than dew-point temperature corresponding to current indoor environment temperature, the frequency of current for compressor operation is increased the first predeterminated frequency value.Such as, this first predeterminated frequency value is 2Hz, and the new running frequency according to obtaining after increase is F 1=F 10+ 2Hz, wherein F 10for the frequency F of the current operation of compressor 10.Be understandable that, this first predeterminated frequency value can be arranged as the case may be and flexibly, does not do further restriction at this.After compressor runs the second Preset Time according to new running frequency, the compressor operating of air-conditioner is made to reach stable, continue the temperature difference obtaining current indoor environment temperature and target temperature, and the operational factor of size adjustment air-conditioner according to the temperature difference, circulation execution above-mentioned steps.It should be noted that, this second Preset Time can be 5 minutes, or other times, can arrange according to actual needs and flexibly.
If the indoor heat exchanger coil temperature detected is less than or equal to dew-point temperature corresponding to current indoor environment temperature, then the frequency of compressor operating remains unchanged, and after running the 3rd Preset Time, air-conditioner is made to maintain stable operation, continue the temperature difference obtaining current indoor environment temperature and target temperature, and the operational factor of size adjustment air-conditioner according to the temperature difference, circulation performs above-mentioned steps.It should be noted that, the 3rd Preset Time can be 5 minutes, or other times, can arrange according to actual needs and flexibly.
In the present embodiment, when the temperature difference of current indoor environment temperature and target temperature is positioned at the first preset temperature difference interval, according to the comparative result of the indoor heat exchanger coil temperature dew-point temperature corresponding with current indoor environment temperature, regulate the frequency of compressor operating, ensure that indoor heat exchanger coil temperature is less than dew-point temperature, ensure condensation, make indoor environment temperature maintain constant while dehumidify in a large number.
Further, based on above-described embodiment, in the constant temperature dehumidification controlling method for air conditioner of this embodiment, above-mentioned steps S50 can comprise:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the second preset temperature difference interval, the frequency of current for described compressor operation is increased the second predeterminated frequency value, after the 4th Preset Time, proceeds to step S40.
After the temperature difference obtaining current indoor environment temperature and target temperature, judge whether the temperature difference of current indoor environment temperature and target temperature is positioned at the second preset temperature difference interval, if, then now the refrigerating capacity of air-conditioner is less, need the frequency increasing compressor operating, to increase refrigerating capacity, constant in order to maintain room temperature, effectively dehumidify, therefore the frequency of current for compressor operation is increased the second predeterminated frequency value.Such as, this second predeterminated frequency value is 5Hz, and the new running frequency according to obtaining after increase is F 1=F 10+ 5Hz, wherein F 10for the frequency F of the current operation of compressor 10.Be understandable that, this second predeterminated frequency value can be arranged as the case may be and flexibly, does not do further restriction at this.After compressor runs the 4th Preset Time according to new running frequency, the compressor operating of air-conditioner is made to reach stable, continue the temperature difference obtaining current indoor environment temperature and target temperature, and the operational factor of size adjustment air-conditioner according to the temperature difference, circulation execution above-mentioned steps.It should be noted that, this second preset temperature difference interval can be Ts+1 DEG C of < T 11≤ Ts+2 DEG C, also can arrange flexibly as the case may be, not limit the present invention.
Further, based on above-described embodiment, in the constant temperature dehumidification controlling method for air conditioner of this embodiment, above-mentioned steps S50 can comprise:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the 3rd preset temperature difference interval, the frequency of current for described compressor operation is reduced the 3rd predeterminated frequency value, after the 5th Preset Time, proceeds to step S40.
After the temperature difference obtaining current indoor environment temperature and target temperature, judge whether the temperature difference of current indoor environment temperature and target temperature is positioned at the 3rd preset temperature difference interval, if, then now the refrigerating capacity of air-conditioner is larger, need the frequency reducing compressor operating, to reduce refrigerating capacity, while carrying out rapid moisture removal, maintain the constant of indoor environment temperature, therefore the frequency of current for compressor operation is reduced the 3rd predeterminated frequency value.Such as, the 3rd predeterminated frequency value is 5Hz, and the new running frequency according to obtaining after reduction is F 1=F 10-5Hz, wherein F 10for the frequency F of the current operation of compressor 10.Be understandable that, the 3rd predeterminated frequency value can be arranged as the case may be and flexibly, does not do further restriction at this.After compressor runs the 5th Preset Time according to new running frequency, the compressor operating of air-conditioner will reach stable, now continue the temperature difference obtaining current indoor environment temperature and target temperature, and the operational factor of size adjustment air-conditioner according to the temperature difference, circulation execution above-mentioned steps.It should be noted that, this 3rd preset temperature difference interval can be Ts-2 DEG C of < T 11≤ Ts-1 DEG C, also can arrange flexibly as the case may be, not limit the present invention.
Further, based on above-described embodiment, in the constant temperature dehumidification controlling method for air conditioner of this embodiment, above-mentioned steps S50 can comprise:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the 4th preset temperature difference interval, stops the operation of described compressor, after the 6th Preset Time, proceed to step S4.
After the temperature difference obtaining current indoor environment temperature and target temperature, judge whether the temperature difference of current indoor environment temperature and target temperature is positioned at the 4th preset temperature difference interval, if, then now the temperature difference of current indoor environment temperature and target temperature is larger, the refrigerating capacity of air-conditioner is very large, cause indoor environment temperature to decline fast, therefore stop the operation of compressor, indoor environment temperature is gone up to some extent.After compressor the 6th Preset Time out of service, continue the temperature difference obtaining current indoor environment temperature and target temperature, and the operational factor of size adjustment air-conditioner according to the temperature difference, circulation execution above-mentioned steps.It should be noted that, this 4th preset temperature difference interval can be T 11dEG C≤Ts-2 DEG C, also can arrange flexibly as the case may be, not limit the present invention.
Further, based on above-described embodiment, in the constant temperature dehumidification controlling method for air conditioner of this embodiment, above-mentioned steps S50 can comprise:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the 5th preset temperature difference interval, controls air-conditioner refrigerating operaton, priming chamber inner blower, detect indoor environment temperature, and proceed to step S20.
After the temperature difference obtaining current indoor environment temperature and target temperature, judge whether the temperature difference of current indoor environment temperature and target temperature is positioned at the 5th preset temperature difference interval, if, then now the temperature difference of current indoor environment temperature and target temperature is larger, need the maintenance refrigerating operaton controlling air-conditioner, indoor environment is made to be less than target temperature, therefore air-conditioner refrigerating operaton is controlled, priming chamber inner blower, real-time detection indoor environment temperature, and obtaining the temperature difference with target temperature, circulation performs above-mentioned steps.It should be noted that, this 5th preset temperature difference interval can be T 11>Ts+2 DEG C, also can arrange flexibly as the case may be, not limit the present invention.
Accordingly, as shown in Figure 3, a kind of air-conditioner constant temperature dehumidification of the present invention control device one embodiment is proposed.The air-conditioner constant temperature dehumidification control device of this embodiment comprises:
Detection module 100, for when air-conditioner enters dehumidification mode, controls air-conditioner refrigerating operaton, priming chamber inner blower, detects indoor environment temperature;
Indoor/outdoor temperature-difference acquisition module 200, when the temperature difference for working as detected indoor environment temperature and target temperature is less than preset temperature, obtains indoor/outdoor temperature-difference;
Determination module 300, for according to described indoor/outdoor temperature-difference, determines the original frequency of compressor operating, and the wind speed that indoor fan runs is reduced to default wind speed;
Acquisition module 400, for obtaining the temperature difference of current indoor environment temperature and target temperature;
Adjustment module 500, for the temperature difference according to described current indoor environment temperature and target temperature the adjusting condition that meets, regulate the operational factor of air-conditioner.
Air-conditioner electrifying startup, when entering dehumidification mode, controls air-conditioner refrigerating operaton, priming chamber inner blower.When user is arranged the wind speed that indoor fan runs, indoor fan operates in set wind speed and effectively dehumidifies; If user does not arrange the wind speed that indoor fan runs, indoor fan will operate in the wind speed of acquiescence, along with the increase of refrigerating capacity, the wind speed of this acquiescence also strengthens thereupon, otherwise refrigerating capacity is less, the wind speed that indoor fan acquiescence is run is also less, ensure that air-conditioner can enter maximum moisture removal.Simultaneously, indoor environment temperature when detecting refrigerating operaton in real time by the indoor temperature transmitter be installed on air conditioner room unit, and when the temperature difference of detected indoor environment temperature and target temperature is less than preset temperature, detect outdoor environment temperature T by the outdoor temperature sensor be installed on air-conditioner outdoor unit 4, by the outdoor environment temperature T collected 4with indoor environment temperature T 1compare, obtain outdoor environment temperature T 4with indoor environment temperature T 1indoor/outdoor temperature-difference Δ T, i.e. indoor and outdoor payload.
It should be noted that, the temperature of target temperature set by user, this target temperature is less than outdoor environment temperature, if the target temperature set by user is greater than or equal to outdoor environment temperature, air-conditioner can automatically by target temperature T sbe reduced to outdoor environment temperature T 4, can be lower than outdoor environment temperature 2 DEG C, i.e. T s≤ T 4-2 DEG C, the amplitude of cooling can be arranged according to actual conditions, does not do further restriction at this.Such as, when outdoor environment temperature is 20 DEG C, and when the target temperature of setting is 26 DEG C, air-conditioner is then by near for target temperature 18 DEG C.This preset temperature can be set to a value, such as 1 DEG C; Also can be set to a value range allowed, such as [-2 DEG C ,+2 DEG C], are arranged according to actual conditions.
According to indoor/outdoor temperature-difference Δ T, determine the original frequency F of the compressor operating of air-conditioner 0, control compressor operating at this original frequency F 0, the wind speed that indoor fan runs is reduced to default wind speed, this wind speed preset is the wind speed that air-conditioner enters maximum moisture removal simultaneously, such as, the wind speed that indoor fan runs is reduced to 1%.In the present embodiment, indoor/outdoor temperature-difference Δ T and original frequency F will be pre-set 0mapping relations, as shown in table 1:
The original frequency F of table 1. indoor/outdoor temperature-difference Δ T and compressor operating 0between corresponding relation
ΔT＝T 4-T 1(℃) ≥8 7 6 5 4 ≤3
F 0(Hz) 45 45 45 45 35 25
From upper table 1, when indoor/outdoor temperature-difference Δ T>=8 DEG C, the original frequency F of compressor operating 0to maintain 45Hz constant; When indoor/outdoor temperature-difference Δ T≤3 DEG C, the original frequency F of compressor operating 0maintain 25Hz constant; When indoor/outdoor temperature-difference Δ T is 5 DEG C, 6 DEG C, 7 DEG C, the original frequency F of compressor operating 0be all 45Hz.Such as, the indoor environment temperature T detected 1be 24 DEG C, the outdoor environment temperature T simultaneously detected with this 4be 30 DEG C, then obtaining indoor/outdoor temperature-difference Δ T is 6 DEG C, thus need control dehumidifying time compressor operating original frequency F 0for 45Hz.Be understandable that, each value in above-mentioned table 1 can be arranged as the case may be and flexibly, does not limit the present invention.
In air-conditioner desiccant cooling running, in order to ensure to decline slowly at indoor environment constant temperature or temperature, need to monitor the change of indoor environment temperature, the i.e. current indoor environment temperature that detects of Real-time Obtaining indoor temperature transmitter, and the current indoor environment temperature of acquisition and target temperature are compared, obtain the temperature difference of current indoor environment temperature and target temperature, then according to the temperature difference of current indoor environment temperature and target temperature the adjusting condition that meets, the operational factors such as the frequency of compressor operating in air-conditioner and the wind speed of indoor fan are regulated, air-conditioner is enable to carry out constant temperature and rapid moisture removal.
The embodiment of the present invention is in air-conditioner running refrigerating dehumidification process, priming chamber inner blower operates in the wind speed of maximum moisture removal, detect indoor environment temperature, when the temperature difference of indoor environment temperature and target temperature is less than preset temperature, indoor/outdoor temperature-difference is obtained after detecting outdoor environment temperature, again according to the original frequency of indoor/outdoor temperature-difference determination compressor operating, and the wind speed that conditioning chamber inner blower runs.Then, according to the temperature difference of the current indoor environment temperature detected and target temperature the adjusting condition that meets, the operational factors such as the wind speed regulating the frequency of the compressor operating of air-conditioner and indoor fan to run.Thus ensure that indoor environment constant temperature or temperature decline slowly in air-conditioner dehumidification process, but also can moisture removal be promoted, shorten the dehumidifying time, therefore, the comfortableness of user's using air-condition dehumidification process can be improved.In addition, do not need to increase the parts such as dehumidification valve, reduce the dehumidifying cost of air-conditioner.
Further, in order to make to regulate in the process of the operational factor of air-conditioner according to the temperature difference of current indoor environment temperature and target temperature, indoor environment temperature slowly changes, improve the comfortableness of user's using air-condition device dehumidification process, in advance the temperature difference of current indoor environment temperature and target temperature is divided into multiple temperature difference interval, and be arranged in different temperature difference interval according to the temperature difference, different adjustments is carried out to the parameter of air-conditioner.As shown in Figure 4, in above-mentioned air-conditioner constant temperature dehumidification control device, adjustment module 500 comprises the first regulon 510, second regulon 520, the 3rd regulon 530, the 4th regulon 540 and the 5th regulon 550.
Such as, the temperature difference of current indoor environment temperature and target temperature is divided into T 11> Ts+2 DEG C, Ts+1 DEG C of < T 11≤ Ts+2 DEG C, Ts-1 DEG C of < T 11≤ Ts+1 DEG C, Ts-2 DEG C of < T 11≤ Ts-1 DEG C, T 11five temperature difference intervals such as≤Ts-2 DEG C of grade, wherein, T 11for current indoor environment temperature, Ts is target temperature.Be understandable that, the division scope in temperature difference interval can be arranged as the case may be and flexibly, does not limit the present invention.
Further, as shown in Figure 5, above-mentioned first regulon 510 comprises:
Detection sub-unit 511, interval for being positioned at the first preset temperature difference when the temperature difference of described current indoor environment temperature and target temperature, heat exchanger coils temperature in sensing chamber;
Judgment sub-unit 512, for judging whether detected indoor heat exchanger coil temperature is greater than dew-point temperature corresponding to current indoor environment temperature;
Regulating subelement 513, if the indoor heat exchanger coil temperature for detecting is greater than dew-point temperature corresponding to current indoor environment temperature, the frequency of current for described compressor operation being increased the first predeterminated frequency value;
If the indoor heat exchanger coil temperature detected is less than or equal to dew-point temperature corresponding to current indoor environment temperature, the frequency of described compressor operating remains unchanged.
After the temperature difference obtaining current indoor environment temperature and target temperature, judge whether the temperature difference of current indoor environment temperature and target temperature is positioned at the first preset temperature difference interval, if so, then by being installed on heat exchanger coils temperature in the temperature sensor sensing chamber in indoor heat exchanger coil pipe.It should be noted that, this first preset temperature difference interval can be Ts-1 DEG C of < T 11≤ Ts+1 DEG C, also can arrange flexibly as the case may be, not limit the present invention.Then dew-point temperature corresponding with current indoor environment temperature for detected indoor heat exchanger coil temperature is compared.
In the present embodiment, will the mapping relations of current indoor environment temperature and dew-point temperature be pre-set, as shown in table 2:
The mapping relations of table 2. current indoor environment temperature and dew-point temperature
T 11(℃) 30 29 28 27 26 25 24 23 22 21 20 19 18 17
T L(℃) 18.48 17.56 16.63 15.71 14.8 13.88 12.96 12.05 11.13 10.22 9.31 8.4 7.5 6.59
From upper table 2, along with current indoor environment temperature T 11increase, corresponding indoor heat exchanger coil temperature threshold value T lalso increase.Such as, as the current indoor environment temperature T obtained 11when being 25 DEG C, indoor environment temperature T before deserving 11corresponding indoor heat exchanger coil temperature threshold value T lit is 13.88 DEG C.Be understandable that, the dew-point temperature T that current indoor environment temperature is corresponding lcan arrange as the case may be and flexibly, not limit the present invention.
If the indoor heat exchanger coil temperature detected is greater than dew-point temperature corresponding to current indoor environment temperature, the frequency of current for compressor operation is increased the first predeterminated frequency value.Such as, this first predeterminated frequency value is 2Hz, and the new running frequency according to obtaining after increase is F 1=F 10+ 2Hz, wherein F 10for the frequency F of the current operation of compressor 10.Be understandable that, this first predeterminated frequency value can be arranged as the case may be and flexibly, does not do further restriction at this.After compressor runs the second Preset Time according to new running frequency, the compressor operating of air-conditioner is made to reach stable, continue the temperature difference obtaining current indoor environment temperature and target temperature, and the operational factor of size adjustment air-conditioner according to the temperature difference, circulation execution above-mentioned steps.It should be noted that, this second Preset Time can be 5 minutes, or other times, can arrange according to actual needs and flexibly.
If the indoor heat exchanger coil temperature detected is less than or equal to dew-point temperature corresponding to current indoor environment temperature, then the frequency of compressor operating remains unchanged, and after running the 3rd Preset Time, air-conditioner is made to maintain stable operation, continue the temperature difference obtaining current indoor environment temperature and target temperature, and the operational factor of size adjustment air-conditioner according to the temperature difference, circulation performs above-mentioned steps.It should be noted that, the 3rd Preset Time can be 5 minutes, or other times, can arrange according to actual needs and flexibly.
In the present embodiment, when the temperature difference of current indoor environment temperature and target temperature is positioned at the first preset temperature difference interval, according to the comparative result of the dew-point temperature of the indoor heat exchanger coil temperature fan coil corresponding with current indoor environment temperature, regulate the frequency of compressor operating, ensure that indoor heat exchanger coil temperature is less than dew-point temperature, ensure condensation, make indoor environment temperature maintain constant while dehumidify in a large number.
Further, the second regulon 520 specifically for, when the temperature difference of described current indoor environment temperature and target temperature, to be positioned at the second preset temperature difference interval, and the frequency of current for described compressor operation is increased the second predeterminated frequency value.
After the temperature difference obtaining current indoor environment temperature and target temperature, judge whether the temperature difference of current indoor environment temperature and target temperature is positioned at the second preset temperature difference interval, if, then now the refrigerating capacity of air-conditioner is less, need the frequency increasing compressor operating, to increase refrigerating capacity, constant in order to maintain room temperature, and effectively dehumidify, therefore the frequency of current for compressor operation is increased the second predeterminated frequency value.Such as, this second predeterminated frequency value is 5Hz, and the new running frequency according to obtaining after increase is F 1=F 10+ 5Hz, wherein F 10for the frequency F of the current operation of compressor 10.Be understandable that, this second predeterminated frequency value can be arranged as the case may be and flexibly, does not do further restriction at this.After compressor runs the 4th Preset Time according to new running frequency, the compressor operating of air-conditioner is made to reach stable, continue the temperature difference obtaining current indoor environment temperature and target temperature, and the operational factor of size adjustment air-conditioner according to the temperature difference, circulation execution above-mentioned steps.It should be noted that, this second preset temperature difference interval can be Ts+1 DEG C of < T 11≤ Ts+2 DEG C, also can arrange flexibly as the case may be, not limit the present invention.
Further, the 3rd regulon 530 specifically for, when the temperature difference of described current indoor environment temperature and target temperature, to be positioned at the 3rd preset temperature difference interval, and the frequency of current for described compressor operation is reduced the 3rd predeterminated frequency value.
After the temperature difference obtaining current indoor environment temperature and target temperature, judge whether the temperature difference of current indoor environment temperature and target temperature is positioned at the 3rd preset temperature difference interval, if, then now the refrigerating capacity of air-conditioner is larger, need the frequency reducing compressor operating, to reduce refrigerating capacity, while carrying out rapid moisture removal, maintain the constant of indoor environment temperature, therefore the frequency of current for compressor operation is reduced the 3rd predeterminated frequency value.Such as, the 3rd predeterminated frequency value is 5Hz, and the new running frequency according to obtaining after reduction is F 1=F 10-5Hz, wherein F 10for the frequency F of the current operation of compressor 10.Be understandable that, the 3rd predeterminated frequency value can be arranged as the case may be and flexibly, does not do further restriction at this.After compressor runs the 5th Preset Time according to new running frequency, the compressor operating of air-conditioner is made to reach stable, continue the temperature difference obtaining current indoor environment temperature and target temperature, and the operational factor of size adjustment air-conditioner according to the temperature difference, circulation execution above-mentioned steps.It should be noted that, this 3rd preset temperature difference interval can be Ts-2 DEG C of < T 11≤ Ts-1 DEG C, also can arrange flexibly as the case may be, not limit the present invention.
Further, the 4th regulon 540 specifically for, when the temperature difference of described current indoor environment temperature and target temperature, to be positioned at the 4th preset temperature difference interval, stops the operation of described compressor.
After the temperature difference obtaining current indoor environment temperature and target temperature, judge whether the temperature difference of current indoor environment temperature and target temperature is positioned at the 4th preset temperature difference interval, if, then now the temperature difference of current indoor environment temperature and target temperature is larger, the refrigerating capacity of air-conditioner is very large, cause indoor environment temperature to decline fast, therefore stop the operation of compressor, indoor environment temperature is gone up to some extent.After compressor the 6th Preset Time out of service, continue the temperature difference obtaining current indoor environment temperature and target temperature, and the operational factor of size adjustment air-conditioner according to the temperature difference, circulation execution above-mentioned steps.It should be noted that, this 4th preset temperature difference interval can be T 11≤ Ts-2 DEG C, also can arrange flexibly as the case may be, not limit the present invention.
Further, the 5th regulon 550 specifically for, when the temperature difference of described current indoor environment temperature and target temperature, to be positioned at the 5th preset temperature difference interval, controls air-conditioner refrigerating operaton, priming chamber inner blower, detect indoor environment temperature.
After the temperature difference obtaining current indoor environment temperature and target temperature, judge whether the temperature difference of current indoor environment temperature and target temperature is positioned at the 5th preset temperature difference interval, if, then now the temperature difference of current indoor environment temperature and target temperature is larger, need the maintenance refrigerating operaton controlling air-conditioner, indoor environment is made to be less than target temperature, therefore air-conditioner refrigerating operaton is controlled, priming chamber inner blower, real-time detection indoor environment temperature, and obtaining the temperature difference with target temperature, circulation performs above-mentioned steps.It should be noted that, this 5th preset temperature difference interval can be T 11>Ts+2 DEG C, also can arrange flexibly as the case may be, not limit the present invention.
Accordingly, as shown in Figure 6, a kind of air-conditioner one embodiment realizing constant temperature dehumidification and control of the present invention is shown.This air-conditioner can comprise indoor set 1 and off-premises station 2, can be provided with indoor heat exchanger and indoor fan in this indoor set 1; Compressor assembly, cross valve, outdoor heat exchanger and throttle part etc. can be provided with in off-premises station 2, wherein be connected by pipeline between compressor assembly, cross valve, indoor heat exchanger, outdoor heat exchanger, throttle part, form refrigerating/heating closed circuit.This indoor set 1 is provided with temperature sensor 101, for gathering indoor environment temperature T1; Off-premises station 2 is provided with temperature sensor 102, for gathering outdoor environment temperature T2.In addition, this air-conditioner also comprises a control device 3, this control device 3 is for obtaining indoor environment temperature T1 and outdoor environment temperature T2, and the target temperature Ts of user's setting, then according to the temperature difference, the indoor/outdoor temperature-difference of indoor environment temperature and target temperature, regulate the operational factor of air-conditioner, and control air-conditioner and run according to this operational factor, reach the object of constant temperature dehumidification.Further, above-mentioned indoor heat exchanger also can be provided with coil temperature sensor, for heat exchanger coils temperature in sensing chamber, and in conjunction with this indoor heat exchanger coil temperature, regulate the operational factor of air-conditioner.Concrete structure and the operation principle of this control device can refer to described in preceding embodiment.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (13)

1. a constant temperature dehumidification controlling method for air conditioner, is characterized in that, described constant temperature dehumidification controlling method for air conditioner comprises the following steps:
S1, when air-conditioner enters dehumidification mode, control air-conditioner refrigerating operaton, priming chamber inner blower, detect indoor environment temperature;
S2, when the temperature difference of detected indoor environment temperature and target temperature is less than preset temperature, obtain indoor/outdoor temperature-difference;
S3, according to described indoor/outdoor temperature-difference, determine the original frequency of compressor operating, and the wind speed that indoor fan runs is reduced to default wind speed;
The temperature difference of S4, acquisition current indoor environment temperature and target temperature;
S5, according to the temperature difference of described current indoor environment temperature and target temperature the adjusting condition that meets, regulate the operational factor of air-conditioner.
2. constant temperature dehumidification controlling method for air conditioner as claimed in claim 1, it is characterized in that, described step S5 comprises:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the first preset temperature difference interval, heat exchanger coils temperature in sensing chamber;
Judge whether the indoor heat exchanger coil temperature detected is greater than coil pipe dew-point temperature corresponding to current indoor environment temperature;
If the indoor heat exchanger coil temperature detected is greater than coil pipe dew-point temperature corresponding to current indoor environment temperature, the frequency of current for described compressor operation is increased the first predeterminated frequency value, after the second Preset Time, proceeds to step S4;
If the indoor heat exchanger coil temperature detected is less than or equal to coil pipe dew-point temperature corresponding to current indoor environment temperature, the frequency of described compressor operating remains unchanged, and after the 3rd Preset Time, proceeds to step S4.
3. constant temperature dehumidification controlling method for air conditioner as claimed in claim 1, it is characterized in that, described step S5 comprises:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the second preset temperature difference interval, the frequency of current for described compressor operation is increased the second predeterminated frequency value, after the 4th Preset Time, proceeds to step S4.
4. constant temperature dehumidification controlling method for air conditioner as claimed in claim 1, it is characterized in that, described step S5 comprises:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the 3rd preset temperature difference interval, the frequency of current for described compressor operation is reduced the 3rd predeterminated frequency value, after the 5th Preset Time, proceeds to step S4.
5. constant temperature dehumidification controlling method for air conditioner as claimed in claim 1, it is characterized in that, described step S5 comprises:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the 4th preset temperature difference interval, stops the operation of described compressor, after the 6th Preset Time, proceed to step S4.
6. constant temperature dehumidification controlling method for air conditioner as claimed in claim 1, it is characterized in that, described step S5 comprises:
When the temperature difference of described current indoor environment temperature and target temperature is positioned at the 5th preset temperature difference interval, controls air-conditioner refrigerating operaton, priming chamber inner blower, detect indoor environment temperature, and proceed to step S2.
7. an air-conditioner constant temperature dehumidification control device, is characterized in that, described air-conditioner constant temperature dehumidification control device comprises:
Detection module, for when air-conditioner enters dehumidification mode, controls air-conditioner refrigerating operaton, priming chamber inner blower, detects indoor environment temperature;
Indoor/outdoor temperature-difference acquisition module, when the temperature difference for working as detected indoor environment temperature and target temperature is less than preset temperature, obtains indoor/outdoor temperature-difference;
Determination module, for according to described indoor/outdoor temperature-difference, determines the original frequency of compressor operating, and the wind speed that indoor fan runs is reduced to default wind speed;
Acquisition module, for obtaining the temperature difference of current indoor environment temperature and target temperature;
Adjustment module, for the temperature difference according to described current indoor environment temperature and target temperature the adjusting condition that meets, regulate the operational factor of air-conditioner.
8. air-conditioner constant temperature dehumidification control device as claimed in claim 7, it is characterized in that, described adjustment module comprises the first regulon, and described first regulon comprises:
Detection sub-unit, interval for being positioned at the first preset temperature difference when the temperature difference of described current indoor environment temperature and target temperature, heat exchanger coils temperature in sensing chamber;
Judgment sub-unit, for judging whether detected indoor heat exchanger coil temperature is greater than coil pipe dew-point temperature corresponding to current indoor environment temperature;
Regulating subelement, if the indoor heat exchanger coil temperature for detecting is greater than coil pipe dew-point temperature corresponding to current indoor environment temperature, the frequency of current for described compressor operation being increased the first predeterminated frequency value;
If the indoor heat exchanger coil temperature detected is less than or equal to coil pipe dew-point temperature corresponding to current indoor environment temperature, the frequency of described compressor operating remains unchanged.
9. air-conditioner constant temperature dehumidification control device as claimed in claim 7, it is characterized in that, described adjustment module comprises:
Second regulon, interval for being positioned at the second preset temperature difference when the temperature difference of described current indoor environment temperature and target temperature, the frequency of current for described compressor operation is increased the second predeterminated frequency value.
10. air-conditioner constant temperature dehumidification control device as claimed in claim 7, it is characterized in that, described adjustment module comprises:
3rd regulon, interval for being positioned at the 3rd preset temperature difference when the temperature difference of described current indoor environment temperature and target temperature, the frequency of current for described compressor operation is reduced the 3rd predeterminated frequency value.
11. air-conditioner constant temperature dehumidification control device as claimed in claim 7, it is characterized in that, described adjustment module comprises:
4th regulon, interval for being positioned at the 4th preset temperature difference when the temperature difference of described current indoor environment temperature and target temperature, stop the operation of described compressor.
12. air-conditioner constant temperature dehumidification control device as claimed in claim 7, it is characterized in that, described adjustment module comprises:
5th regulon, interval for being positioned at the 5th preset temperature difference when the temperature difference of described current indoor environment temperature and target temperature, control air-conditioner refrigerating operaton, priming chamber inner blower, detect indoor environment temperature.
13. 1 kinds of air-conditioners, it is characterized in that, described air-conditioner is provided with indoor temperature transmitter and outdoor temperature sensor, described indoor temperature transmitter is for gathering indoor environment temperature, described outdoor temperature sensor for gathering outdoor environment temperature, described air-conditioner also comprise as claim 7 ?the control device of air-conditioner constant temperature dehumidification as described in 12 any one, this control device is used in conjunction with indoor environment temperature, target temperature, outdoor environment temperature, regulate the operational factor of air-conditioner, and control air-conditioner and run according to this operational factor.
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