CN104296310A - Control method and device for outlet air temperature of air conditioner indoor unit - Google Patents
Control method and device for outlet air temperature of air conditioner indoor unit Download PDFInfo
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- CN104296310A CN104296310A CN201310307353.1A CN201310307353A CN104296310A CN 104296310 A CN104296310 A CN 104296310A CN 201310307353 A CN201310307353 A CN 201310307353A CN 104296310 A CN104296310 A CN 104296310A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000003247 decreasing effect Effects 0.000 claims description 14
- 230000009467 reduction Effects 0.000 claims description 12
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 description 10
- 230000000630 rising effect Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method and device for the outlet air temperature of an air conditioner indoor unit. The method comprises the first step of receiving a current heat exchanger temperature T2 (n) detected by a temperature sensor arranged in an indoor heat exchanger, and judging whether the absolute value of the difference value between T2 (n) and a heat exchanger temperature T2 (n-1) detected last time is smaller than a preset difference value extreme value D or not, the second step of judging whether T2 (n) is within a preset temperature interval corresponding to an air volume stable region when the inequation |T2 (n)-T2 (n-1)|<D is satisfied, the third step of adjusting the outlet air volume of an air conditioner correspondingly according to the temperature interval corresponding to an air volume adjustment region where T2 (n) is located when T2 (n) is not within the temperature interval corresponding to the air volume stable region. By means of the method, a high outlet air temperature is reached quickly and kept constant, fluctuation of the indoor temperature and the outlet air temperature is reduced, the defect that the outlet air temperature of the air conditioner is low due to a low outdoor temperature is overcome, and the comfort level of users using the air conditioner is improved.
Description
Technical field
The present invention relates to air-conditioning technical field, be related specifically to a kind of control method and device of air conditioner room unit leaving air temp.
Background technology
When heat pump air conditioner runs in a heating mode, cold-producing medium evaporates in outdoor heat exchanger, by heat exchanger and outdoor air generation heat exchange, absorption of air heat outdoor, this part heat is brought indoor into by cold-producing medium and is changed device, release heat by the condensation process of cold-producing medium in indoor heat exchanger, heating indoor air, makes people enjoy pleasant environment.
Because cold-producing medium needs to absorb heat in air outdoor, and when outdoor temperature reduces gradually, the exchange capability of heat of outdoor heat exchanger will along with decline, the evaporating pressure of cold-producing medium also can decline, have impact on the ability of refrigerant suction outdoor air heat, thus cause transferring to indoor heat decline.Because indoor set air quantity is invariable, even if thus maintain the constant of indoor return air temperature, also keep away the decline of unavoidable leaving air temp, when leaving air temp declines by a big margin, just lower from the air temperature of air outlet blowout, the comfortableness of people will be badly influenced like this.Even if outdoor environment temperature is constant, when outdoor environment temperature is lower, when heat pump air conditioner heats, outdoor heat exchanger also has the process of frosting, and along with the thickening of frost layer, the exchange capability of heat of outdoor heat exchanger can along with decline, and now leaving air temp also can decline, and has influence on the comfortableness of people.
Summary of the invention
Main purpose of the present invention is to provide a kind of control method and device of air conditioner room unit leaving air temp, can reduce the fluctuation of indoor temperature and leaving air temp, and avoids outdoor low temperature space-time to recall the lower defect of air temperature, improves the comfort level that user uses.
The invention provides a kind of control method of air conditioner room unit leaving air temp, comprise step:
Receive the current heat exchange temperature T2(n detected by the temperature sensor in heat exchanger disposed in the interior), judge described current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than preset difference extreme value D;
When | T2(n)-T2(n-1) | during >=D, air-conditioner normally runs, and does not adjust;
When | T2(n)-T2(n-1) | during <D, judge current heat exchange temperature T2(n) whether be in humidity province corresponding to preset air quantity stable region;
As described current heat exchange temperature T2(n) when not being in humidity province corresponding to preset air quantity stable region, according to T2(n) residing for temperature range corresponding to air quantity adjustment district, air-out volume is adjusted accordingly, to control the leaving air temp of air conditioner room unit.
Preferably, judge current heat exchange temperature T2(n described) whether be in the step of temperature range corresponding to preset air quantity stable region before, also comprise:
Calculate indoor heat exchanger temperature stabilization value T2S corresponding when air quantity is stablized according to preset leaving air temp setting value TcS, and determine according to above-mentioned T2S the T2 temperature range that air quantity stable region is corresponding.
Preferably, described air quantity adjustment district comprises increase district and reduces district;
As described current heat exchange temperature T2(n) when being less than the corresponding temperature minimum of a value of described air quantity stable region, then current heat exchange temperature T2(n) be in air quantity and reduce district;
As described current heat exchange temperature T2(n) when being more than or equal to the corresponding temperature maximum of described air quantity stable region, then current heat exchange temperature T2(n) be in air quantity and increase district.
Preferably, described according to T2(n) residing for air quantity adjustment district, the step of air-out volume being carried out to corresponding adjustment comprises:
As described current heat exchange temperature T2(n) be in air quantity when reducing temperature range corresponding to district, according to preset air quantity decreasing value, reduce air conditioner air-out volume;
As described current heat exchange temperature T2(n) be in air quantity when increasing temperature range corresponding to district, according to preset air quantity boost value, increase air conditioner air-out volume.
Preferably, as T2(n)-T2(n-1) >0 time, stable region is [T2S-t1, T2S+t2]; As T2(n)-T2(n-1) <0 time, stable region is [T2S-t3, T2S+t4]; Wherein, t1 > t3, t2< t4.
Preferably, the current heat exchange temperature T2(n detected by the temperature sensor in described reception heat exchanger disposed in the interior) step before, also comprise:
Receive the return air temperature T1 detected by temperature sensor being arranged on air-conditioner return air inlet, according to preset indoor temperature setting value TS, judge whether described return air temperature T1 is in preset indoor temperature district; If so, then perform and describedly judge current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than the step of preset difference extreme value D; If not, then normally run, do not adjust.
The present invention also provides a kind of control device of air conditioner room unit leaving air temp, comprising:
First receiver module, for receiving the current heat exchange temperature T2(n detected by the temperature sensor in heat exchanger disposed in the interior);
First judge module, for judging described current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than preset difference extreme value D;
Second judge module, for as | T2(n)-T2(n-1) | during <D, judge current heat exchange temperature T2(n) whether be in preset stable region;
Air quantity adjusting module, for as described current heat exchange temperature T2(n) when not being in preset stable region, according to T2(n) residing for temperature range corresponding to air quantity adjustment district, air conditioner air-out volume is adjusted accordingly, to control the leaving air temp of air conditioner room unit.
Preferably, the control device of air conditioner room unit leaving air temp also comprises:
Calculating and determination module, for calculating indoor heat exchanger temperature stabilization value T2S corresponding when air-out volume is stablized according to preset leaving air temp setting value TcS, and determining that air quantity stable region corresponding temperature is interval according to the stationary value T2S calculated.
Preferably, described air quantity adjustment district comprises air quantity increase district and air quantity reduction district;
As described current heat exchange temperature T2(n) when being less than temperature range minimum of a value corresponding to described air quantity stable region, current heat exchange temperature T2(n) be in air quantity and reduce district;
As described current heat exchange temperature T2(n) when being more than or equal to temperature range maximum corresponding to described air quantity stable region, current heat exchange temperature T2(n) be in air quantity and increase district.
Preferably, described air quantity adjusting module specifically for:
As described current heat exchange temperature T2(n) be in air quantity when reducing temperature range corresponding to district, according to preset air quantity decreasing value, reduce air conditioner air-out volume;
As described current heat exchange temperature T2(n) be in air quantity when increasing temperature range corresponding to district, according to preset air quantity boost value, increase air conditioner air-out volume.
Preferably, as T2(n)-T2(n-1) >0 time, stable region is [T2S-t1, T2S+t2]; As T2(n)-T2(n-1) <0 time, stable region is [T2S-t3, T2S+t4]; Wherein, t1 > t3, t2< t4.
Preferably, the control device of air conditioner room unit leaving air temp also comprises:
Second receiver module, for receiving the return air temperature T1 detected by the temperature sensor being arranged on air conditioner wind outlet;
3rd judge module, for according to preset indoor temperature setting value TS, judges whether described return air temperature T1 is in preset indoor temperature district.
The present invention by after receiving current heat exchange temperature, judges this current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than preset difference extreme value D; In this way, current heat exchange temperature T2(n is judged further) whether be in preset stable region; And when current heat exchange temperature is not in preset stable region, according to current heat exchange temperature T2(n) residing for adjustment district, air-out volume is adjusted accordingly, to control the leaving air temp of air conditioner room unit, achieve and reach higher leaving air temp fast and keep constant object, reduce the fluctuation of indoor temperature and leaving air temp, and avoid outdoor low temperature space-time and recall the lower defect of air temperature, improve the comfort level that user uses.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of control method first embodiment of air conditioner room unit leaving air temp of the present invention;
Fig. 2 is the schematic flow sheet adjusted air-out volume in the control method of air conditioner room unit leaving air temp of the present invention;
Fig. 3 is the schematic flow sheet of control method second embodiment of air conditioner room unit leaving air temp of the present invention;
Fig. 4 is the schematic flow sheet of control method the 3rd embodiment of air conditioner room unit leaving air temp of the present invention;
Fig. 5 is the structural representation of control device first embodiment of air conditioner room unit leaving air temp of the present invention;
Fig. 6 is the structural representation of control device second embodiment of air conditioner room unit leaving air temp of the present invention;
Fig. 7 is the structural representation of control device the 3rd embodiment of air conditioner room unit leaving air temp 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.
The invention provides a kind of control method of air conditioner room unit leaving air temp.Current heat exchange temperature is detected by the temperature sensor be arranged in the middle part of indoor heat exchanger for air conditioner on copper pipe elbow, judge whether to adjust air-out volume according to this current heat exchange temperature, and operate accordingly according to judged result, realize reaching higher leaving air temp fast and keeping constant.
With reference to the schematic flow sheet that Fig. 1, Fig. 1 are control method first embodiment of air conditioner room unit leaving air temp of the present invention.
The control method of the air conditioner room unit leaving air temp that the present embodiment provides, comprising:
Step S10, receives the current heat exchange temperature T2(n detected by the temperature sensor in heat exchanger disposed in the interior);
Step S11, judges current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than preset difference extreme value D;
In the present embodiment, by being arranged on the temperature sensor in the middle part of indoor heat exchanger for air conditioner, the current heat exchange temperature T2(n of periodic detection), receiving this current heat exchange temperature T2(n) after, judge current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than preset difference extreme value D, this difference extreme value D can set according to actual conditions, as current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference be more than or equal to preset difference extreme value D time, then show that heat exchange temperature change is excessive, now the air-out volume of indoor set is not adjusted, to avoid system cloud gray model appearance fluctuation by a relatively large margin.
Step S20, when | T2(n)-T2(n-1) | during <D, judge current heat exchange temperature T2(n) whether be in preset stable region;
As current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference be less than preset difference extreme value D, namely | T2(n)-T2(n-1) | during <D, then judge this current heat exchange temperature T2(n further) whether be in preset stable region.In the present embodiment, stable region refers at current heat exchange temperature T2(n) when being in this interval range, keeping the air-out volume of indoor set to stablize, air-out volume is not adjusted.
Step S30, current heat exchange temperature T2(n) when not being in preset stable region, according to T2(n) residing for adjustment district, air-out volume is adjusted accordingly, to control the leaving air temp of air conditioner room unit.
In the present embodiment, corresponding to stable region be also set with adjustment district, i.e. current heat exchange temperature T2(n) be within the scope of this adjustment district time, air-out volume is adjusted accordingly.Adjustment district comprises increase district and reduces district; Wherein, at current heat exchange temperature T2(n) when being less than the minimum of a value of stable region, current heat exchange temperature T2(n) be in reduce district, T2(n now) corresponding to the adjustment carried out of the air-out volume to indoor set be reduce air-out volume; At current heat exchange temperature T2(n) when being more than or equal to the maximum of stable region, current heat exchange temperature T2(n) be in increase district, T2(n now) corresponding to the adjustment carried out of the air-out volume to indoor set be increase air-out volume.At current heat exchange temperature T2(n) the heat exchange temperature T2(n-1 that detects compared to the last time) in rising trend and downward trend time, be provided with and increase district and reduce district accordingly.When judging current heat exchange temperature T2(n) when being in adjustment district, according to increasing district and reducing the relative set in district, to the adjustment that air-out volume increases accordingly and reduces, thus the leaving air temp of control air conditioner room unit further.
It is the schematic flow sheet in the control method of air conditioner room unit leaving air temp of the present invention, air-out volume adjusted please with reference to Fig. 2, Fig. 2.
In the present embodiment, step S30 specifically comprises:
Step S31, current heat exchange temperature T2(n) be in reduce district time, according to preset air quantity decreasing value, reduce air-out volume;
Step S31, current heat exchange temperature T2(n) be in increase district time, according to preset air quantity boost value, increase air-out volume.
When judging current heat exchange temperature T2(n) be in adjustment district within the scope of time, judge this current heat exchange temperature T2(n further) be in reduction district still increase district.Now, no matter be current heat exchange temperature T2(n) the heat exchange temperature T2(n-1 that detects compared to the last time) in rising trend or downward trend, its determination methods is all the same.As current heat exchange temperature T2(n) when being less than the minimum of a value of stable region, show current heat exchange temperature T2(n) be in and reduce district, now, according to the preset decreasing value reduced corresponding to district, reduce air-out volume; As current heat exchange temperature T2(n) when being more than or equal to the maximum of stable region, show current heat exchange temperature T2(n) be in and increase district, now, according to the preset boost value increased corresponding to district, increase air-out volume; Preset decreasing value and boost value are the indicated values that the air-out volume preset reduces or increases, and namely according to the indicated value of this setting, are reduced by air-out volume or increase the amplitude of this indicated value size.
In the present embodiment, further can also segment reduction district and increase district, namely according to current heat exchange temperature T2(n) size, reduction district and increase divided into multiple reduction district and increase district, and corresponding each reduce district and increase district all to set corresponding decreasing value and boost value.According to current heat exchange temperature T2(n) size, select the reduction district at its place or increase district, and according to the decreasing value of correspondence or boost value, air-out volume being adjusted accordingly.
The present embodiment by after receiving current heat exchange temperature, judges this current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than preset difference extreme value D; In this way, current heat exchange temperature T2(n is judged further) whether be in preset stable region; And when current heat exchange temperature is not in preset stable region, according to current heat exchange temperature T2(n) residing for adjustment district, air-out volume is adjusted accordingly, to control the leaving air temp of air conditioner room unit, achieve and reach higher leaving air temp fast and keep constant object, reduce the fluctuation of indoor temperature and leaving air temp, and avoid outdoor low temperature space-time and recall the lower defect of air temperature, improve the comfort level that user uses.
With reference to the schematic flow sheet that Fig. 3, Fig. 3 are control method second embodiment of air conditioner room unit leaving air temp of the present invention.
On the basis of control method first embodiment of air conditioner room unit leaving air temp of the present invention, before performing step S20, the method also comprises:
Step S40, calculates stationary value T2S corresponding when air-out volume is stablized according to preset leaving air temp setting value TcS, and determines stable region according to the stationary value T2S calculated.
In the present embodiment, a leaving air temp setting value TcS can be preset, this leaving air temp setting value TcS can be set by User Defined, the stationary value T2S of heat exchange temperature corresponding when air-out volume is stablized can be calculated according to this leaving air temp setting value TcS, namely, when heat exchange temperature is T2S, the air-out volume of indoor set is the most stable.In the present embodiment, stationary value T2S and leaving air temp setting value TcS possesses following relation: T2S=ATcS+B, wherein A and B is constant, experimentally room actual measurement obtains, during due to actual installation, for different type of machines, in indoor heat exchanger for air conditioner, the exchange capability of heat of temperature sensor mounted position and indoor heat exchanger is different, the numerical values recited slightly difference of A and B, can the real data of experimentally room conclude.
After calculating stationary value T2S according to leaving air temp setting value TcS, determine stable region according to this stationary value T2S, in the present embodiment, the minimum of a value of stable region can pass through T2S-t
ndetermine, the maximum of stable region can pass through T2S+t
mdetermine, wherein t
nand t
mcan the suitable error amount of self-defined setting, t
nand t
mvalue can be the same or different, as long as ensure at this T2S-t
nto T2S+t
mscope in air-out volume be keep stable, do not need to adjust.In the present embodiment, can by T2(n) compared to T2(n-1) i.e. T2(n in rising trend)-T2(n-1) >0 time stable region be set to [T2S-t1, T2S+t2]; By T2(n) compared to T2(n-1) i.e. T2(n on a declining curve)-T2(n-1) <0 time stable region be set to [T2S-t3, T2S+t4].
For avoiding at T2(n) compared to T2(n-1) in rising trend and scope higher than stable region time, temperature raises too fast and does not increase air-out volume in time, and at T2(n) compared to T2(n-1) on a declining curve and scope lower than stable region time, temperature declines too fast and does not reduce air-out volume in time, thus cause that leaving air temp is too high or too low brings uncomfortable experience to user, t1 > t3 is set, t2< t4, that is, by T2(n)-T2(n-1) >0 time the minimum of a value of stable region and maximum be set to be less than T2(n)-T2(n-1) minimum of a value of <0 stable region and maximum.Like this, as T2(n)-T2(n-1) >0 and T2(n) and scope higher than stable region time increase air-out volume earlier, leaving air temp just can be avoided too high; As T2(n)-T2(n-1) <0 time, and T2(n) scope lower than stable region time reduce air-out volume earlier, leaving air temp just can be avoided too low; Reduce the fluctuating range of leaving air temp.
Judging current heat exchange temperature T2(n) whether be in stable region before, first stationary value T2S is calculated according to preset leaving air temp setting value TcS, and determine stable region according to stationary value T2S, thus reach higher leaving air temp fast for realizing and keep constant, the fluctuation reducing indoor temperature and leaving air temp provides premise.
With reference to the schematic flow sheet that Fig. 4, Fig. 4 are control method the 3rd embodiment of air conditioner room unit leaving air temp of the present invention.
In control method first embodiment of air conditioner room unit leaving air temp of the present invention and the basis of the second embodiment, before execution step S10, the method also comprises:
Step S50, receives the return air temperature T1 detected by temperature sensor being arranged on air conditioner wind outlet;
Step S51, according to preset indoor temperature setting value TS, judges whether return air temperature T1 is in preset indoor temperature district; If so, then step S10 is performed; If not, then normally run, do not adjust.
In the present embodiment, detected the return air temperature T1 at return air inlet place by the temperature sensor being arranged on air-conditioner return air inlet.Air-conditioner be in heating mode run time, after receiving return air temperature T1, judge return air temperature T1 whether in the scope in preset indoor temperature district.In the present embodiment, the Indoor Temperature angle value reached desired by room user set is defined as TS, then indoor temperature district is determined by TS-E, and wherein E is constant, and the value of this E can self-definedly set equally.After receiving return air temperature T1, return air temperature is judged whether within the scope of preset indoor temperature district according to relational expression T1 >=TS-E, due to when indoor temperature is lower, leaving air temp when air-conditioner system start runs in a heating mode is also lower, now judge return air temperature T1 whether within the scope of preset indoor temperature district, to adjust air-out volume according to heat exchange temperature at return air temperature T1 again close to during indoor temperature setting value TS, thus still can drop into maximum heating capacity when ensureing that air-conditioner system start runs in a heating mode, indoor temperature is made to rise fast, reach the indoor temperature setting value that user needs as early as possible.
The present invention also provides a kind of control device of air conditioner room unit leaving air temp.
With reference to the structural representation that Fig. 5, Fig. 5 are control device first embodiment of air conditioner room unit leaving air temp of the present invention.
The control device of the air conditioner room unit leaving air temp that the present embodiment provides, comprising:
First receiver module 10, for receiving the current heat exchange temperature T2(n detected by the temperature sensor in heat exchanger disposed in the interior);
First judge module 20, for judging current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than preset difference extreme value D;
Second judge module 30, for as | T2(n)-T2(n-1) | during <D, judge current heat exchange temperature T2(n) whether be in preset stable region;
Air quantity adjusting module 40, for current heat exchange temperature T2(n) when not being in preset stable region, according to T2(n) residing for adjustment district, air-out volume is adjusted accordingly, to control the leaving air temp of air conditioner room unit.
In the present embodiment, by being arranged on the temperature sensor in the middle part of indoor heat exchanger for air conditioner, the current heat exchange temperature T2(n of periodic detection), this current heat exchange temperature T2(n is received at the first receiver module 10) after, judge current heat exchange temperature T2(n by the first judge module 20) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than preset difference extreme value D, this difference extreme value D can set according to actual conditions, as current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference be more than or equal to preset difference extreme value D time, then show that heat exchange temperature change is excessive, now the air-out volume of indoor set is not adjusted, to avoid system cloud gray model appearance fluctuation by a relatively large margin.
As current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference be less than preset difference extreme value D, namely | T2(n)-T2(n-1) | during <D, then judge this current heat exchange temperature T2(n further by the second judge module 30) whether be in preset stable region.In the present embodiment, stable region refers at current heat exchange temperature T2(n) when being in this interval range, keeping the air-out volume of indoor set to stablize, air-out volume is not adjusted.
In the present embodiment, corresponding to stable region be also set with adjustment district, i.e. current heat exchange temperature T2(n) be within the scope of this adjustment district time, adjusted accordingly by air quantity adjusting module 40 pairs of air-out volumes.Adjustment district comprises increase district and reduces district; Wherein, at current heat exchange temperature T2(n) when being less than the minimum of a value of stable region, current heat exchange temperature T2(n) be in reduce district, T2(n now) corresponding to the adjustment carried out of the air-out volume to indoor set be reduce air-out volume; At current heat exchange temperature T2(n) when being more than or equal to the maximum of stable region, current heat exchange temperature T2(n) be in increase district, T2(n now) corresponding to the adjustment carried out of the air-out volume to indoor set be increase air-out volume.At current heat exchange temperature T2(n) the heat exchange temperature T2(n-1 that detects compared to the last time) in rising trend and downward trend time, be provided with and increase district and reduce district accordingly.When judging current heat exchange temperature T2(n) when being in adjustment district, according to increasing district and reducing the relative set in district, to the adjustment that air-out volume reduces accordingly and increases, thus the leaving air temp of control air conditioner room unit further.
In the present embodiment, air quantity adjusting module 40 specifically for:
Current heat exchange temperature T2(n) be in reduce district time, according to preset air quantity decreasing value, reduce air-out volume;
Current heat exchange temperature T2(n) be in increase district time, according to preset air quantity boost value, increase air-out volume.
When judging current heat exchange temperature T2(n) be in adjustment district within the scope of time, judge this current heat exchange temperature T2(n further) be in reduction district still increase district.Now, no matter be current heat exchange temperature T2(n) the heat exchange temperature T2(n-1 that detects compared to the last time) in rising trend or downward trend, its determination methods is all the same.As current heat exchange temperature T2(n) when being less than the minimum of a value of stable region, show current heat exchange temperature T2(n) be in and reduce district, now, according to the preset decreasing value reduced corresponding to district, reduce air-out volume; As current heat exchange temperature T2(n) when being more than or equal to the maximum of stable region, show current heat exchange temperature T2(n) be in and increase district, now, according to the preset boost value increased corresponding to district, increase air-out volume; Preset decreasing value and boost value are the indicated values that the air-out volume preset reduces or increases, and namely according to the indicated value of this setting, are reduced by air-out volume or increase the amplitude of this indicated value size.
In the present embodiment, further can also segment reduction district and increase district, namely according to current heat exchange temperature T2(n) size, reduction district and increase divided into multiple reduction district and increase district, and corresponding each reduce district and increase district all to set corresponding decreasing value and boost value.According to current heat exchange temperature T2(n) size, select the reduction district at its place or increase district, and according to the decreasing value of correspondence or boost value, air-out volume being adjusted accordingly.
The present embodiment by after receiving current heat exchange temperature, judges this current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than preset difference extreme value D; In this way, current heat exchange temperature T2(n is judged further) whether be in preset stable region; And when current heat exchange temperature is not in preset stable region, according to current heat exchange temperature T2(n) residing for adjustment district, air-out volume is adjusted accordingly, to control the leaving air temp of air conditioner room unit, achieve and reach higher leaving air temp fast and keep constant object, reduce the fluctuation of indoor temperature and leaving air temp, and avoid outdoor low temperature space-time and recall the lower defect of air temperature, improve the comfort level that user uses.
With reference to the structural representation that Fig. 6, Fig. 6 are control device second embodiment of air conditioner room unit leaving air temp of the present invention.
On the basis of control device first embodiment of air conditioner room unit leaving air temp of the present invention, this device also comprises:
Calculating and determination module 50, for calculating stationary value T2S corresponding when air-out volume is stablized according to preset leaving air temp setting value TcS, and determining stable region according to the stationary value T2S calculated.
In the present embodiment, a leaving air temp setting value TcS can be preset, this leaving air temp setting value TcS can be set by User Defined, by calculating and determination module 50, the stationary value T2S of heat exchange temperature corresponding when air-out volume is stablized can be calculated according to this leaving air temp setting value TcS, namely, when heat exchange temperature is T2S, the air-out volume of indoor set is the most stable.In the present embodiment, stationary value T2S and leaving air temp setting value TcS possesses following relation: T2S=ATcS+B, wherein A and B is constant, experimentally room actual measurement obtains, during due to actual installation, for different type of machines, in indoor heat exchanger for air conditioner, the exchange capability of heat of temperature sensor mounted position and indoor heat exchanger is different, the numerical values recited slightly difference of A and B, can the real data of experimentally room conclude.
After calculating stationary value T2S according to leaving air temp setting value TcS, determine stable region according to this stationary value T2S, in the present embodiment, the minimum of a value of stable region can pass through T2S-t
ndetermine, the maximum of stable region can pass through T2S+t
mdetermine, wherein t
nand t
mcan the suitable error amount of self-defined setting, t
nand t
mvalue can be the same or different, as long as ensure at this T2S-t
nto T2S+t
mscope in air-out volume be keep stable, do not need to adjust.In the present embodiment, can by T2(n) compared to T2(n-1) i.e. T2(n in rising trend)-T2(n-1) >0 time stable region be set to [T2S-t1, T2S+t2]; By T2(n) compared to T2(n-1) i.e. T2(n on a declining curve)-T2(n-1) <0 time stable region be set to [T2S-t3, T2S+t4].
For avoiding at T2(n) compared to T2(n-1) in rising trend and scope higher than stable region time, temperature raises too fast and does not increase air-out volume in time, and at T2(n) compared to T2(n-1) on a declining curve and scope lower than stable region time, temperature declines too fast and does not reduce air-out volume in time, thus cause that leaving air temp is too high or too low brings uncomfortable experience to user, t1 > t3 is set, t2< t4, that is, by T2(n)-T2(n-1) >0 time the minimum of a value of stable region and maximum be set to be less than T2(n)-T2(n-1) minimum of a value of <0 stable region and maximum.Like this, as T2(n)-T2(n-1) >0 and T2(n) and scope higher than stable region time increase air-out volume earlier, leaving air temp just can be avoided too high; As T2(n)-T2(n-1) <0 time, and T2(n) scope lower than stable region time reduce air-out volume earlier, leaving air temp just can be avoided too low; Reduce the fluctuating range of leaving air temp.
Judging current heat exchange temperature T2(n) whether be in stable region before, first stationary value T2S is calculated according to preset leaving air temp setting value TcS, and determine stable region according to stationary value T2S, thus reach higher leaving air temp fast for realizing and keep constant, the fluctuation reducing indoor temperature and leaving air temp provides premise.
With reference to the structural representation that Fig. 7, Fig. 7 are control device the 3rd embodiment of air conditioner room unit leaving air temp of the present invention.
In control device first embodiment of air conditioner room unit leaving air temp of the present invention and the basis of the second embodiment, this device also comprises:
Second receiver module 60, for receiving the return air temperature T1 detected by the temperature sensor being arranged on air-conditioner return air inlet;
3rd judge module 70, for according to preset indoor temperature setting value TS, judges whether return air temperature T1 is in preset indoor temperature district.
In the present embodiment, detected the return air temperature T1 at return air inlet place by the temperature sensor being arranged on air-conditioner return air inlet.Air-conditioner be in heating mode run time, after the second receiver module 60 receives return air temperature T1, judge return air temperature T1 whether in the scope in preset indoor temperature district by the 3rd judge module 70.In the present embodiment, the Indoor Temperature angle value reached desired by room user set is defined as TS, then indoor temperature district is determined by TS-E, and wherein E is constant, and the value of this E can self-definedly set equally.After receiving return air temperature T1, return air temperature is judged whether within the scope of preset indoor temperature district according to relational expression T1 >=TS-E, due to when indoor temperature is lower, leaving air temp when air-conditioner system start runs in a heating mode is also lower, now judge return air temperature T1 whether within the scope of preset indoor temperature district, to adjust air-out volume according to heat exchange temperature at return air temperature T1 again close to during indoor temperature setting value TS, thus still can drop into maximum heating capacity when ensureing that air-conditioner system start runs in a heating mode, indoor temperature is made to rise fast, reach the indoor temperature setting value that user needs as early as possible.
The foregoing is 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 (12)
1. a control method for air conditioner room unit leaving air temp, is characterized in that, comprises step:
Receive the current heat exchange temperature T2(n detected by the temperature sensor in heat exchanger disposed in the interior), judge described current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than preset difference extreme value D;
When | T2(n)-T2(n-1) | during >=D, air-conditioner normally runs, and does not adjust;
When | T2(n)-T2(n-1) | during <D, judge current heat exchange temperature T2(n) whether be in humidity province corresponding to preset air quantity stable region;
As described current heat exchange temperature T2(n) when not being in humidity province corresponding to preset air quantity stable region, according to T2(n) residing for the temperature range of air quantity adjustment corresponding to district, air-out volume is adjusted accordingly, to control the leaving air temp of air conditioner room unit.
2. the control method of air conditioner room unit leaving air temp according to claim 1, is characterized in that, judges current heat exchange temperature T2(n described) whether be in the step of temperature range corresponding to preset air quantity stable region before, also comprise:
Calculate indoor heat exchanger temperature stabilization value T2S corresponding when air-out volume is stablized according to preset leaving air temp setting value TcS, and determine according to above-mentioned T2S the T2 temperature range that air quantity stable region is corresponding.
3. the control method of air conditioner room unit leaving air temp according to claim 2, is characterized in that, described air quantity adjustment district comprises increase district and reduces district;
As described current heat exchange temperature T2(n) when being less than the corresponding temperature minimum of a value of described air quantity stable region, then current heat exchange temperature T2(n) be in air quantity and reduce district;
As described current heat exchange temperature T2(n) when being more than or equal to the corresponding temperature maximum of described air quantity stable region, then current heat exchange temperature T2(n) be in air quantity and increase district.
4. the control method of air conditioner room unit leaving air temp according to claim 3, is characterized in that, described according to T2(n) residing for air quantity adjustment district, the step that air-out volume adjusts accordingly is comprised:
As described current heat exchange temperature T2(n) be in air quantity when reducing temperature range corresponding to district, according to preset air quantity decreasing value, reduce air conditioner air-out volume;
As described current heat exchange temperature T2(n) be in air quantity when increasing temperature range corresponding to district, according to preset air quantity boost value, increase air conditioner air-out volume.
5. the control method of air conditioner room unit leaving air temp according to claim 2, is characterized in that, as T2(n)-T2(n-1) >0 time, stable region is [T2S-t1, T2S+t2]; As T2(n)-T2(n-1) <0 time, stable region is [T2S-t3, T2S+t4]; Wherein, t1 > t3, t2< t4.
6. the control method of air conditioner room unit leaving air temp according to any one of claim 1 to 5, it is characterized in that, current heat exchange temperature T2(n detected by temperature sensor in described reception heat exchanger disposed in the interior) step before, also comprise:
Receive the return air temperature T1 detected by temperature sensor being arranged on air-conditioner return air inlet, according to preset indoor temperature setting value TS, judge whether described return air temperature T1 is in preset indoor temperature district; If so, then perform and describedly judge current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than the step of preset difference extreme value D; If not, then normally run, do not adjust.
7. a control device for air conditioner room unit leaving air temp, is characterized in that, comprising:
First receiver module, for receiving the current heat exchange temperature T2(n detected by the temperature sensor in heat exchanger disposed in the interior);
First judge module, for judging described current heat exchange temperature T2(n) with the last heat exchange temperature T2(n-1 detected) absolute difference whether be less than preset difference extreme value D;
Second judge module, for as | T2(n)-T2(n-1) | during <D, judge current heat exchange temperature T2(n) whether be in preset stable region;
Air quantity adjusting module, for as described current heat exchange temperature T2(n) when not being in preset stable region, according to T2(n) residing for temperature range corresponding to air quantity adjustment district, air conditioner air-out volume is adjusted accordingly, to control the leaving air temp of air conditioner room unit.
8. the control device of air conditioner room unit leaving air temp according to claim 7, is characterized in that, also comprise:
Calculating and determination module, for calculating indoor heat exchanger temperature stabilization value T2S corresponding when air-out volume is stablized according to preset leaving air temp setting value TcS, and determining that air quantity stable region corresponding temperature is interval according to the stationary value T2S calculated.
9. the control device of air conditioner room unit leaving air temp according to claim 8, is characterized in that, described air quantity adjustment district comprises air quantity and increases district and air quantity reduction district;
As described current heat exchange temperature T2(n) when being less than temperature range minimum of a value corresponding to described air quantity stable region, current heat exchange temperature T2(n) be in air quantity and reduce district;
As described current heat exchange temperature T2(n) when being more than or equal to temperature range maximum corresponding to described air quantity stable region, current heat exchange temperature T2(n) be in air quantity and increase district.
10. the control device of air conditioner room unit leaving air temp according to claim 9, is characterized in that, described air quantity adjusting module specifically for:
As described current heat exchange temperature T2(n) be in air quantity when reducing temperature range corresponding to district, according to preset air quantity decreasing value, reduce air conditioner air-out volume;
As described current heat exchange temperature T2(n) be in air quantity when increasing temperature range corresponding to district, according to preset air quantity boost value, increase air conditioner air-out volume.
The control device of 11. air conditioner room unit leaving air temps according to claim 8, is characterized in that, as T2(n)-T2(n-1) >0 time, stable region is [T2S-t1, T2S+t2]; As T2(n)-T2(n-1) <0 time, stable region is [T2S-t3, T2S+t4]; Wherein, t1 > t3, t2< t4.
The control device of 12. air conditioner room unit leaving air temps according to any one of claim 7 to 11, is characterized in that, also comprise:
Second receiver module, for receiving the return air temperature T1 detected by the temperature sensor being arranged on air-conditioner return air inlet;
3rd judge module, for according to preset indoor temperature setting value TS, judges whether described return air temperature T1 is in preset indoor temperature district.
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