CN103557576A - Method and system for controlling humidity of air conditioner - Google Patents
Method and system for controlling humidity of air conditioner Download PDFInfo
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- CN103557576A CN103557576A CN201310482442.XA CN201310482442A CN103557576A CN 103557576 A CN103557576 A CN 103557576A CN 201310482442 A CN201310482442 A CN 201310482442A CN 103557576 A CN103557576 A CN 103557576A
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Abstract
The invention belongs to the technical field of air conditioner control and particularly relates to a method and a system for controlling humidity of an air conditioner. According to the method and the system, even if the air conditioner is in a low-frequency operation refrigeration state such as an energy-saving mode, the rotation speed of an indoor unit can be adjusted repeatedly through a preset evaporator temperature critical value, and the fan rotation speed is further adjusted to keep the evaporator temperature constant to achieve dehumidification, accordingly, an effective dehumidification function is guaranteed, the dehumidification step is quit automatically when the humidity value is below a user set humidity value, energy is saved, the environment is protected, and the experience and the comfort level of users are improved.
Description
Technical field
The invention belongs to air-conditioner control technology field, relate in particular to a kind of air-conditioning humidity control method and control system.
Background technology
From human comfort index, temperature and humidity is two key factors, in south China and coastal area, face the suitable but problem that humidity is very large of temperature, the plum rain season of areas to the south, the Changjiang river for example, indoor air temperature can remain on 25-28 degree, is the pleasant temperature of human body sensory, and outdoor relative humidity maintains 70% substantially, even also occur humidity and reach 90% situation, thereby make people feel humid.
In prior art, when air-conditioner is used refrigeration mode (no matter being manual refrigeration mode, Automatic-cooling pattern or energy-conservation refrigeration mode), the frequency that air-conditioner brings into operation is high, and refrigerating capacity is large, and evaporimeter can keep lower temperature under normal wind speed; When airborne steam is during through colder evaporimeter, meet cold meeting and be liquefied as water, therefore there is a certain amount of dehumidifying effect, can meet under the larger environment of humidity and use.
But, if air-conditioner approaches design temperature in indoor temperature, or indoor temperature and outdoor temperature are more approaching, or when moving under energy saver mode, air-conditioner will normally operate in below 30HZ with lower frequency operation, and evaporator temperature is just higher, substantially more than 20 degree, do not have effective dehumidification function.When people use air-conditioner for a long time under the larger environment of humidity, than being easier to occur feeling of oppression and heat.Therefore be necessary to improve the effect on moisture extraction of the air-conditioner of the low frequency operations such as energy saver mode, the comfort level of using to improve user.
Summary of the invention
First object of the present invention is to provide a kind of air-conditioning humidity control method, solves the dehumidifying problem of existing air-conditioner when the low frequency operations such as energy saver mode, to improve the effect on moisture extraction of air-conditioner, improves the comfort level that user uses.
To achieve these goals, air-conditioning humidity control method provided by the invention comprises:
Step S10: determine that air-conditioning is currently operating under refrigeration mode, carry out following steps;
Step S11: obtain the current running frequency FR of air-conditioning, judge that whether it is greater than default critical frequency FS, is to return to step S10, otherwise enters step S12;
Step S12: calculate the accumulated running time TM1 of air-conditioning under this pattern or frequency, until accumulated running time TM1 is greater than default very first time critical value TM1S; If air-conditioning is provided with humidity sensor, enter step S13, if air-conditioning, without humidity sensor, enters step S14;
Step S13: judge that whether indoor current humidity Φ is greater than default humidity Φ S, is to enter step S14, otherwise returns to step S10;
Step S14: the real time execution rotating speed Z that records current indoor fan; According to default evaporator temperature critical value T2S, obtain indoor fan desired speed SD corresponding thereto, control room inner blower moves with this rotating speed SD;
Step S15: control room inner blower surpasses the second default time critical values TM2S with this rotating speed SD running time T M2, to realize the thermostatic control of evaporimeter;
Step S16: the rotating speed Z before the inner blower recovery record of control room, and accumulated running time TM1 and running time T M2 described in zero clearing; Return to step S10, until air-conditioning exits refrigeration mode.
On the other hand, the present invention also aims to provide a kind of air-conditioning MCS, comprising:
Operational mode identifying unit, for determining that air-conditioning is currently operating under refrigeration mode;
Running frequency identifying unit, for obtaining the current running frequency FR of air-conditioning and judging whether it is greater than default critical frequency FS;
Timing unit, for adding up the accumulated running time TM1 of air-conditioning under refrigeration mode and indoor fan with the time T M2 of rotating speed SD operation, and can carry out zero clearing to both;
Humidity identifying unit, for judging whether indoor current humidity Φ is greater than default humidity Φ S;
Rotation speed of fan control module, for obtaining indoor fan desired speed SD corresponding thereto according to default evaporator temperature critical value T2S, control room inner blower moves with this rotating speed SD; And
Memory cell, for storing the data parameters that comprises default default critical frequency FS, evaporator temperature critical value T2S, very first time critical value TM1S and the second time critical values TM2S.
According to air-conditioning humidity control method provided by the invention and control system, even if air-conditioning is under the refrigerating state of the low frequency operations such as energy saver mode, also can guarantee its effect on moisture extraction, guarantee effective dehumidification function, improve user's experience and comfort level.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the air-conditioning humidity control method that provides of first embodiment of the invention;
Fig. 2 is the realization flow figure of the air-conditioning humidity control method that provides of second embodiment of the invention;
Fig. 3 is the structured flowchart of the air-conditioning MCS that provides of third embodiment of the invention.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.And embodiment is only illustrated dehumidifying part, other general utility functions is as startup, FREQUENCY CONTROL, protection etc., just not in embodiment should give the scope of explanation.
Fig. 1 is the realization flow figure of the air-conditioning humidity control method that provides of first embodiment of the invention; For convenience of explanation, only show the part relevant to the present embodiment, as shown in the figure:
Step S10: determine that air-conditioning is currently operating under refrigeration mode, carry out following steps.
The prerequisite of the air-conditioning humidity control method that this step provides for the embodiment of the present invention: need to first determine that air-conditioning is in refrigeration, no matter and be specifically operated under energy saver mode or manual or automatic refrigeration mode, so long as refrigerating operaton just can be carried out following steps.
Step S11: obtain the current running frequency FR of air-conditioning, judge that whether it is greater than default critical frequency FS, is to return to step S10, otherwise enters step S12.
In this step, obtain the current running frequency FR of air-conditioning, compare with default critical frequency FS.This critical frequency FS is generally the preset value before dispatching from the factory, and according to the needs of different type of machines, model and environment for use, presets, and generally can select the arbitrary value between 15-35HZ.
Step S12: calculate the accumulated running time TM1 of air-conditioning under this pattern or frequency, until accumulated running time TM1 is greater than default very first time critical value TM1S; If air-conditioning is provided with humidity sensor, enter step S13, if air-conditioning, without humidity sensor, enters step S14.
In this step, start the accumulated running time TM1 of accumulative total air-conditioning under this refrigeration mode or running frequency FR, until be greater than TM1S.TM1S is default very first time critical value, and it also can just set according to different type of machines etc. before dispatching from the factory, and can be generally the arbitrary value between 20-50 minute.Then according to having or not on air-conditioning, humidity sensor is set selects to carry out different steps.
On the whole, while being provided with humidity sensor, can provide more accurate humidity to control, and perform step S13; If humidity sensor is not set, by adjusting indoor fan rotating speed, adjust the T2 value of evaporator temperature, realize quantitative dehumidification function.
Step S13: judge that whether indoor current humidity Φ is greater than default humidity Φ S, is to enter step S14, otherwise returns to step S10.
In this step, by humidity sensor, obtain indoor current humidity Φ, compare with default humidity Φ S.Default humidity Φ S is the critical value that needs dehumidifying, and air-conditioning dispatches from the factory can a built-in preset value as last, for example, be 60%, and user also can independently set the humidity value needing by remote control or TIP according to the demand of self.If current humidity Φ is greater than default humidity Φ S, explanation need to be carried out dehumidification treatments, enters next step; If current humidity Φ is not more than default humidity Φ S, illustrate that current humidity is in receptible scope, needn't carry out dehumidification treatments, return to execution step S10.
Step S14: the real time execution rotating speed Z that records current indoor fan; According to default evaporator temperature critical value T2S, obtain indoor fan desired speed SD corresponding thereto, control room inner blower moves with this rotating speed SD.
As shown in the above, the prerequisite that enters step S14 has two kinds: the one, be provided with humidity sensor, and determine that current humidity has been greater than default humidity; The 2nd, be not provided with humidity sensor, as long as air-conditioning accumulated running time TM1 with running frequency FR under refrigeration mode is greater than default very first time critical value TM1S.In this step, first record the real time execution rotating speed Z of current indoor fan; Then according to default evaporator temperature critical value T2S, obtain indoor fan desired speed SD corresponding thereto, control room inner blower moves with this rotating speed SD.The evaporator temperature critical value T2S is here the evaporator temperature that default effect on moisture extraction is good, can not affect again other functions of air-conditioning, is traditionally arranged to be the arbitrary value between 6-18 degree.Evaporator temperature critical value T2S according to arranging, obtains the indoor fan desired speed SD corresponding with this temperature value, and control room inner blower, with this rotating speed SD operation, is realized the object of adjusting evaporimeter actual temperature by rotation speed of fan gradually.
Step S15: control room inner blower surpasses the second default time critical values TM2S with this rotating speed SD running time T M2, to realize the thermostatic control of evaporimeter.
In this step, control room inner blower is with rotating speed SD operation, until running time T M2 surpasses the second default time critical values TM2S, to realize as much as possible the thermostatic control of evaporimeter, makes as much as possible the actual temperature of evaporimeter reach T2S, reaches dehumidifying object., consider the hysteresis quality of adjustment here, generally the second time critical values TM2S is made as to the arbitrary value between 10-50 minute in advance, or with reference to aforementioned very first time critical value TM1S, select a time that is less than TM1S.
Step S16: the rotating speed Z before the inner blower recovery record of control room, and accumulated running time TM1 and running time T M2 described in zero clearing; Return to step S10, until air-conditioning exits refrigeration mode.
After having carried out the temperature adjusting of above-mentioned evaporimeter, surpass the rotating speed Z of the second default time critical values TM2S before with regard to control room inner blower recovery record, zero clearing accumulated running time TM1 and running time T M2; And return to step S10 and repeatedly carry out, until exiting refrigeration mode, air-conditioning just stops whole control flow.
Fig. 2 is the realization flow figure of the air-conditioning humidity control method that provides of second embodiment of the invention.In the present embodiment, be only that other flow processs are identical with embodiment mono-to the refinement of " control room inner blower surpasses the second default time critical values TM2S with this rotating speed SD running time T M2, to realize the thermostatic control of evaporimeter " of step S15 in embodiment mono-.For convenience of explanation, only show this place part not identical with embodiment mono-, as shown in the figure:
Step S151: judge that whether indoor fan is greater than the second default time critical values TM2S with this rotating speed SD running time T M2, is directly to enter step S16, otherwise enters step S152.
In this step, first judge whether indoor fan has been greater than the second default time critical values TM2S with the running time T M2 of rotating speed SD, if be greater than, just directly entered in step S16 and switch rotation speed of fan; If be less than the second default time critical values TM2S, enter next step S152.
Step S152: the constant continuation operation of control room inner blower rotating speed, until the second default time critical values TM2S.
As a preferred embodiment, between step S151 and step S152, can also comprise:
Steps A: default DL second is waited in time delay.
In this step, DL second is waited in time delay, and DL second is the default stand-by period, is generally the arbitrary value of 1-30 between second.Time delay after waiting for, enter below repeatedly adjust rotation speed of fan to revise the step of evaporator temperature.
Step B: whether the real time temperature T2 that judges evaporimeter is greater than described evaporator temperature critical value T2S and default temperature return difference offset B sum, be in proportion V reduce indoor fan rotating speed and return to step S151, otherwise enter step C.
Step C: whether the real time temperature T2 that judges evaporimeter is less than the poor of described evaporator temperature critical value T2S and default temperature return difference offset B, be in proportion V increase indoor fan rotating speed and return to step S151, otherwise enter step S152.
According to above-mentioned steps B and step C, whether the real time temperature T2 that first judges evaporimeter is greater than evaporator temperature critical value T2S and default temperature return difference offset B sum, and the span of temperature return difference offset B generally can be between 0.5-3 degree.If T2>T2S+B, V reduces indoor fan rotating speed and returns to step S151 in proportion; If T2≤T2S+B, enters next step C and continues the real time temperature T2 of evaporimeter to judge.Step C judges whether the real time temperature T2 of evaporimeter is less than the poor of described evaporator temperature critical value T2S and default temperature return difference offset B, and whether T2 is less than T2S-B.If T2<T2S-B, V increases indoor fan rotating speed and returns to step S151 in proportion, if T2 >=T2S-B enters the constant continuation operation of step S152 control room inner blower rotating speed.
It should be noted that, when increasing or reducing the rotating speed of indoor fan, will carry out according to default ratio V, the general ratio V adjusting is the arbitrary value between 1%-15%, and it is also worthless suddenly changing largely rotation speed of fan.
It should be noted that, the step that the rotating speed that passes through adjustment indoor fan that this second embodiment provides is revised evaporimeter real time temperature T2 is not necessary.The air-conditioning humidity control method providing according to the first embodiment, control room inner blower moves with desired speed SD, although the real time temperature T2 of evaporimeter can not infinite approach T2S, evaporimeter real time temperature T2 has certain fluctuation, also can produce good effect on moisture extraction.
The embodiment of the present invention also provides a kind of air-conditioning MCS.Fig. 3 is the structured flowchart of the air-conditioning MCS that provides of third embodiment of the invention.For convenience of explanation, only show the part relevant to the present embodiment, as shown in the figure:
Air-conditioning MCS 30, comprising:
Operational mode identifying unit 31, for determining that air-conditioning is currently operating under refrigeration mode;
Running frequency identifying unit 32, for obtaining the current running frequency FR of air-conditioning and judging whether it is greater than default critical frequency FS;
Timing unit 33, for adding up the accumulated running time TM1 of air-conditioning under refrigeration mode and indoor fan with the time T M2 of rotating speed SD operation, and can carry out zero clearing to both;
Humidity identifying unit 34, for judging whether indoor current humidity Φ is greater than default humidity Φ S;
Rotation speed of fan control module 35, for obtaining indoor fan desired speed SD corresponding thereto according to default evaporator temperature critical value T2S, control room inner blower moves with this rotating speed SD; And
Memory cell 36, for storing the data parameters that comprises default default critical frequency FS, evaporator temperature critical value T2S, very first time critical value TM1S and the second time critical values TM2S.
Further, air-conditioning MCS 30 also comprises:
Evaporator temperature identifying unit 37, for judging whether the real time temperature T2 of evaporimeter is greater than described evaporator temperature critical value T2S and default temperature return difference offset B sum and/or whether is less than described evaporator temperature critical value T2S and default temperature return difference offset B poor;
Rotation speed of fan regulon 38, reduces or increases indoor set wind speed for V proportionally.
Further, air-conditioning MCS 30 also comprises:
Command reception unit 39, for receiving user to the operational mode control instruction of air-conditioning with by the setting instruction of remote control or TIP transmission.
According to air-conditioning humidity control method provided by the invention and control system, even if air-conditioning is under the refrigerating state of the low frequency operations such as energy saver mode, also can repeatedly adjust by default evaporator temperature critical value the rotating speed of indoor fan, further the adjustment by rotation speed of fan makes evaporator temperature constancy achieving effect on moisture extraction, guarantee effective dehumidification function, when the humidity value that reaches user's setting is following, automatically exit dehumidifying step, energy-conserving and environment-protective have improved again user's experience and comfort level.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, although the present invention has been carried out to more detailed explanation with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified or part technical characterictic is wherein equal to replacement.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an air-conditioning humidity control method, is characterized in that, described method comprises:
Step S10: determine that air-conditioning is currently operating under refrigeration mode, carry out following steps;
Step S11: obtain the current running frequency FR of air-conditioning, judge that whether it is greater than default critical frequency FS, is to return to step S10, otherwise enters step S12;
Step S12: calculate the accumulated running time TM1 of air-conditioning under this pattern or frequency, until accumulated running time TM1 is greater than default very first time critical value TM1S; If air-conditioning is provided with humidity sensor, enter step S13, if air-conditioning, without humidity sensor, enters step S14;
Step S13: judge that whether indoor current humidity Φ is greater than default humidity Φ S, is to enter step S14, otherwise returns to step S10;
Step S14: the real time execution rotating speed Z that records current indoor fan; According to default evaporator temperature critical value T2S, obtain indoor fan desired speed SD corresponding thereto, control room inner blower moves with this rotating speed SD;
Step S15: control room inner blower surpasses the second default time critical values TM2S with this rotating speed SD running time T M2, to realize the thermostatic control of evaporimeter;
Step S16: the rotating speed Z before the inner blower recovery record of control room, and accumulated running time TM1 and running time T M2 described in zero clearing; Return to step S10, until air-conditioning exits refrigeration mode.
2. air-conditioning humidity control method as claimed in claim 1, is characterized in that, described step S15 is specially:
Step S151: judge that whether indoor fan is greater than the second default time critical values TM2S with this rotating speed SD running time T M2, is directly to enter step S16, otherwise enters step S152;
Step S152: the constant continuation operation of control room inner blower rotating speed, until the second default time critical values TM2S.
3. air-conditioning humidity control method as claimed in claim 2, is characterized in that, between described step S151 and step S152, also comprises:
Steps A: default DL second is waited in time delay;
Step B: whether the real time temperature T2 that judges evaporimeter is greater than described evaporator temperature critical value T2S and default temperature return difference offset B sum, be in proportion V reduce indoor fan rotating speed and return to step S151, otherwise enter step C;
Step C: whether the real time temperature T2 that judges evaporimeter is less than the poor of described evaporator temperature critical value T2S and default temperature return difference offset B, be in proportion V increase indoor fan rotating speed and return to step S151, otherwise enter step S152.
4. the air-conditioning humidity control method as described in claim 1-3 any one, is characterized in that, described default humidity Φ S is the built-in preset value before air-conditioning dispatches from the factory, or for user is by the value of remote control or TIP setting.
5. air-conditioning humidity control method as claimed in claim 1, is characterized in that, described default critical frequency FS is the arbitrary value between 15-35HZ; Described evaporator temperature critical value T2S is the arbitrary value between 6-18 degree; Described very first time critical value TM1S is the arbitrary value between 20-50 minute; Described the second time critical values TM2S is the arbitrary value between 10-50 minute.
6. air-conditioning humidity control method as claimed in claim 3, is characterized in that, described DL second is the arbitrary value of 1-30 between second.
7. air-conditioning humidity control method as claimed in claim 3, is characterized in that, described temperature return difference offset B is the arbitrary value between 0.5-3 degree; Described ratio V is the arbitrary value between 1%-15%.
8. an air-conditioning MCS, is characterized in that, described system comprises:
Operational mode identifying unit, for determining that air-conditioning is currently operating under refrigeration mode;
Running frequency identifying unit, for obtaining the current running frequency FR of air-conditioning and judging whether it is greater than default critical frequency FS;
Timing unit, for adding up the accumulated running time TM1 of air-conditioning under refrigeration mode and indoor fan with the time T M2 of rotating speed SD operation, and can carry out zero clearing to both;
Humidity identifying unit, for judging whether indoor current humidity Φ is greater than default humidity Φ S;
Rotation speed of fan control module, for obtaining indoor fan desired speed SD corresponding thereto according to default evaporator temperature critical value T2S, control room inner blower moves with this rotating speed SD; And
Memory cell, for storing the data parameters that comprises default default critical frequency FS, evaporator temperature critical value T2S, very first time critical value TM1S and the second time critical values TM2S.
9. an air-conditioning MCS as claimed in claim 8, is characterized in that, described system also comprises:
Evaporator temperature identifying unit, for judging whether the real time temperature T2 of evaporimeter is greater than described evaporator temperature critical value T2S and default temperature return difference offset B sum and/or whether is less than described evaporator temperature critical value T2S and default temperature return difference offset B poor;
Rotation speed of fan regulon, reduces or increases indoor set wind speed for V proportionally.
10. an air-conditioning MCS as claimed in claim 8, is characterized in that, described system also comprises:
Command reception unit, for receiving user to the operational mode control instruction of air-conditioning with by the setting instruction of remote control or TIP transmission.
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| CN112747436A (en) * | 2021-01-04 | 2021-05-04 | 青岛海尔空调器有限总公司 | Control method for dehumidification of air conditioner and air conditioner |
| CN113091256A (en) * | 2021-04-02 | 2021-07-09 | 青岛海尔空调器有限总公司 | Air conditioner control method, air conditioner control device, air conditioner, storage medium and program product |
| WO2022206221A1 (en) * | 2021-04-02 | 2022-10-06 | 青岛海尔空调器有限总公司 | Air conditioning control method and device, air conditioner, storage medium, and program product |
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