CN102748837A - Air conditioner and automatically-reminding method for dirty and blocking of filter screen thereof - Google Patents
Air conditioner and automatically-reminding method for dirty and blocking of filter screen thereof Download PDFInfo
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- CN102748837A CN102748837A CN2012102652655A CN201210265265A CN102748837A CN 102748837 A CN102748837 A CN 102748837A CN 2012102652655 A CN2012102652655 A CN 2012102652655A CN 201210265265 A CN201210265265 A CN 201210265265A CN 102748837 A CN102748837 A CN 102748837A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000000903 blocking effect Effects 0.000 title abstract 4
- 238000005057 refrigeration Methods 0.000 claims abstract description 55
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 238000004378 air conditioning Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims description 45
- 230000002045 lasting effect Effects 0.000 claims description 29
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 description 8
- 108010053481 Antifreeze Proteins Proteins 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The invention discloses an automatically-reminding method for dirty and blocking of a filter screen of an air conditioner, comprising the following steps: step S1) of presetting a refrigeration alarm temperature Ta and a heating alarm temperature Tb in an air conditioning system; step S2) of judging a operation mode of the air conditioner; executing a step S3 if the operation mode is a refrigerating mode; executing a step S4 if the operation mode is a heating mode; step S3) of detecting temperature T of a coil of an indoor heat exchanger, and comparing T with Ta; if T is not greater than Ta, forcing the indoor heat exchanger to operate at high speed by a period of time t1, and then detecting the temperature T of the coil again; if T is not greater than Ta, outputting a filter screen dirty and blocking signal; step S4) of detecting the temperature T of the coil of the indoor heat exchanger, and comparing T with Ta; if T is not less than Ta, forcing the indoor heat exchanger to operate at high speed by a period of time t2, and then detecting the temperature T of the coil again; if T is not less than Ta, outputting the filter screen dirty and blocking signal. According to the invention, users can be reminded to clean the filter screen in time so as to provide necessary support for high-efficiency operation of the air conditioner, and therefore, use of the air conditioner is more energy-saving.
Description
Technical field
The present invention relates to the air-conditioning technique field, more particularly, relate to the dirty stifled automatic based reminding method of a kind of air-conditioner and screen pack thereof, be used to remind user's cleaning and filtering net, air-conditioner is efficiently moved.
Background technology
Filter screen of air conditioner is that filtered air gets into the device of heat exchanger to stop impurity such as dust.But after air-conditioner used a period of time, impurity such as dust can be covered with on screen pack, reduced the intake of indoor set, and then influenced the refrigeration or the heating effect of air-conditioner.
At present, the air-conditioner of selling on the market does not have the function of the dirty stifled prompting of screen pack, and is with printed words such as " needing user's periodic cleaning screen pack " on its product description.Because air conditioner room unit hangs on the wall, or stand in indoorly, the user can't know the dirty stifled situation of screen pack exactly, and then can't in time remove the cleaning and filtering net.
Have much about the technical scheme of the dirty prompting of screen pack of air-conditioner open in the prior art:
A kind of air-conditioner with the dirty prompting function of screen pack is disclosed though publication number is the Chinese invention patent application of CN1727791; But this technical scheme only can reflect local dirty stifled situation such as a point or several points on the screen pack, can't make reflection comprehensively and accurately to the dirty stifled situation of whole screen pack.
Notification number is that the Chinese utility model patent of CN2580340 also discloses a kind of air-conditioning with the dirty stifled prompting function of screen pack; It is with timing formula method (i.e. timing alerting pattern) notice; Environment for use difference because of the user; The dirty stifled speed of screen pack is not quite similar, and therefore can not reflect the dirty stifled situation of screen pack accurately.
Notification number is that the Chinese utility model patent of CN201000370 discloses a kind of air-conditioning internal machine screen pack obstruction alarm device that adopts temperature sensor to report to the police; When CPU collects pipe temperature sensor temperature≤design temperature, environmentally sensitive actuator temperature>=25 °; CPU protects system; To User Alarms, remind the user to clean net.This technical scheme is: when CPU collected pipe Wen Wendu smaller or equal to design temperature (this temperature is for the artificial dirty stifled temperature of setting of prompting screen pack, hereinafter to be referred as T3), system promptly reported to the police.But there is wrong report leak in this warning device, and reason is: our the Guan Wenwei T of definition when freezing appears in air-conditioner, the dirty Guan Wenwei T2 when stifled of screen pack.If T2 is less than T, then screen pack is dirty when stifled, and temperature descends, and air-conditioner can be introduced into the anti-freeze protection, and order pipe temperature rises, and Guan Wen does not reach T2 forever, makes the setting of T2 meaningless.Therefore, we must set T2 more than or equal to T, still; Remind when we set that the dirty stifled temperature T 3 of screen pack is during smaller or equal to T, as Guan Wen because a variety of causes during less than T3 (Guan Wen T3 T T2), then system can frequently get into the anti-freeze protection; And the dirty stifled situation of actual filtration net this moment and uncertain; But because Guan Wen also is lower than T3, so system can remind the user filtering net dirty stifled, this obviously is irrational.When reminding the dirty stifled temperature of screen pack (T3) to be set between T and the T2:, just can remind the user filtering net dirty stifled, still because this air-conditioner also will satisfy environment temperature greater than 25 ° of these conditions of C; Under sleep pattern, when environment temperature is spent greater than 25, when air-conditioner moves with low wind; Situation below the T3 also can appear being reduced in Guan Wen; And screen pack maybe be not dirty stifled, but system control cpu will frequently get into protection, reminds the user filtering net dirty stifled.Moreover, still under sleep pattern, suppose that screen pack is dirty stifled; When air-conditioner with low wind operation, environment temperature when 25 degree are following; Guan Wenhui continues to drop to T3, and this moment is owing to the condition of discontented toe ring border temperature greater than 25 degree, so CPU will not start prompting function; Drop to below the T up to Guan Wen, system can get into anti-freeze.In sum, the dirty stifled prompting function of this technical scheme is inaccurate, occurs wrong report easily, fails to report situation.
Summary of the invention
The present invention is in order to overcome the deficiency that prior art exists; Provide that a kind of newspaper is waken up in time, air-conditioner and the dirty stifled automatic based reminding method of screen pack thereof accurately; The control system can judge exactly whether indoor machine filter screen is dirty stifled to the degree that needs to clean; And in time need the signal of cleaning and filtering net to user's receptions and registration, with prompting user cleaning and filtering net.
The technical scheme that the present invention adopts is: the dirty stifled automatic based reminding method of a kind of filter screen of air conditioner comprises the steps: S1) in air-conditioner system, preset refrigeration alarm temperature Ta and heat alarm temperature Tb;
S2) judge the operational mode of air-conditioner, if refrigeration mode execution in step S3 then; If heating mode, then execution in step S4;
S3) in the sensing chamber heat exchanger coils temperature T and with refrigeration alarm temperature Ta relatively, if T≤Ta, force indoor machine fan first scheduled time of high-speed cruising t1 after, detect coil temperature T once more, if T≤Ta, the then dirty stifled alarm signal of output filtering net;
S4) in the sensing chamber heat exchanger coils temperature T and with heat alarm temperature Tb relatively, if T >=Tb, force indoor machine fan second scheduled time of high-speed cruising t2 after, detect coil temperature T once more, if T >=Tb, the then dirty stifled alarm signal of output filtering net.
Preferably, said first scheduled time t1 is 5 minutes, and said second scheduled time t2 is 5 minutes.
Preferably, the setting range of said refrigeration alarm temperature Ta is 0-5 ℃, and the said setting range that heats alarm temperature Tb is 50-55 ℃.
Preferably, in step S3, when T≤Ta and lasting the 3rd scheduled time t3, force indoor machine fan first scheduled time of high-speed cruising t1, detect coil temperature T once more, if T≤Ta, the then dirty stifled alarm signal of output filtering net.
Preferably, in step S4, when T >=Tb and lasting the 4th scheduled time t4, force indoor machine fan second scheduled time of high-speed cruising t2, detect coil temperature T once more, if T >=Tb, the then dirty stifled alarm signal of output filtering net.
Preferably, in step S3, when T≤Ta and lasting the 3rd scheduled time t3, force indoor machine fan first scheduled time of high-speed cruising t1, detect coil temperature T once more, if T≤Ta and lasting the 5th scheduled time t5, the then dirty stifled alarm signal of output filtering net.
Preferably, in step S4,, force indoor machine fan second scheduled time of high-speed cruising t2, detect coil temperature T once more, if T >=Tb and when continuing the 6th scheduled time t6, the then dirty stifled alarm signal of output filtering net as T >=Tb and when continuing the 4th scheduled time t4.
A kind of air-conditioner; Comprise refrigeration system and electric-control system; Said refrigeration system is used to carry out refrigeration mode or heating mode operation; Said electric-control system comprises controller, and said controller comprises the dirty stifled identification module of operational mode judge module, refrigeration mode screen pack and the dirty stifled identification module of heating mode screen pack of cooling and warming alarm temperature presetting module, air-conditioning
Said cooling and warming alarm temperature presetting module is used in air-conditioning system, presetting refrigeration alarm temperature Ta and heats alarm temperature Tb;
The operational mode judge module of said air-conditioning is used to judge the operational mode of air-conditioner, if refrigeration mode then judges through the dirty stifled identification module of refrigeration mode screen pack whether screen pack is dirty stifled; If heating mode, then whether the disconnected screen pack of the dirty stifled identification module of heating mode screen pack is dirty stifled;
The dirty stifled identification module of said refrigeration mode screen pack be used in the sensing chamber heat exchanger coils temperature T and with refrigeration alarm temperature Ta relatively; If T≤Ta behind pressure indoor machine fan first scheduled time of the high-speed cruising t1, detects coil temperature T once more; If T≤Ta, the then dirty stifled alarm signal of output filtering net;
The dirty stifled identification module of said heating mode screen pack be used in the sensing chamber heat exchanger coils temperature T and with heat alarm temperature Tb relatively; If T >=Tb behind pressure indoor machine fan second scheduled time of the high-speed cruising t2, detects coil temperature T once more; If T >=Tb, the then dirty stifled alarm signal of output filtering net.
Preferably; The dirty stifled identification module of said refrigeration mode screen pack is further used for when T≤Ta and lasting the 3rd scheduled time t3, forcing indoor machine fan first scheduled time of high-speed cruising t1, detects coil temperature T once more; If T≤Ta, the then dirty stifled alarm signal of output filtering net; The dirty stifled identification module of said heating mode screen pack is further used for when T>=Tb and lasting the 4th scheduled time t4, forcing indoor machine fan second scheduled time of high-speed cruising t2, detects coil temperature T once more, if T>=Tb, the then dirty stifled alarm signal of output filtering net.
Preferably; The dirty stifled identification module of said refrigeration mode screen pack is further used for when T≤Ta and lasting the 3rd scheduled time t3; Force indoor machine fan first scheduled time of high-speed cruising t1; Detect coil temperature T once more, if T≤Ta and lasting the 5th scheduled time t5, the then dirty stifled alarm signal of output filtering net; The dirty stifled identification module of said heating mode screen pack is further used for when T>=Tb and lasting the 4th scheduled time t4; Force indoor machine fan second scheduled time of high-speed cruising t2; Detect coil temperature T once more; If T>=Tb and when continuing the 6th scheduled time t6, the then dirty stifled alarm signal of output filtering net.
Compared with prior art, the present invention has the following advantages:
The dirty stifled automatic based reminding method of filter screen of air conditioner of the present invention can make the user can in time grasp the dirty stifled situation of filter screen of air conditioner, in time reminds user's cleaning and filtering net, for the efficient operation of air-conditioner provides necessary support, makes the use of air-conditioner more energy-conservation.
The present invention gets rid of other possible factor that influences the dirty stifled prompting of screen pack through heat exchanger coils temperature in twice sensing chamber, has solved the dirty stifled prompting of existing filter screen of air conditioner and has occurred the problem reporting by mistake, fail to report easily, and dirty stifled prompting is precisely effective.
Description of drawings
Fig. 1 is the dirty stifled flow chart of reminding automatically of the present invention's one preferred embodiment filter screen of air conditioner;
The dirty stifled flow chart of reminding automatically of Fig. 2 another embodiment of the present invention filter screen of air conditioner;
The dirty stifled flow chart of reminding automatically of Fig. 3 further embodiment of this invention filter screen of air conditioner.
The specific embodiment
Below, in conjunction with Figure of description and specific embodiment, the present invention is further described, should be appreciated that specific embodiment described herein only in order to explain the present invention, is not construed as limiting the invention:
Air-conditioner according to the invention needs under the state of start operation and compressor energising operation, can realize its function.At first air-conditioner is when dispatching from the factory; In environment for use scope commonly used, simulation indoor set airstrainer is dirty stifled to the degree that needs to clean, and obtains the coil temperature Ta of the air-conditioner indoor heat exchanger under refrigeration mode under this type of state and the coil temperature Tb of the indoor heat exchanger under the heating mode by the designer; And it is imported in the program of indoor electric-control system; Wherein, Ta is as the refrigeration alarm temperature, and Tb is as heating alarm temperature.
The dirty stifled automatic based reminding method of filter screen of air conditioner of the present invention at first need be accomplished above-mentioned refrigeration alarm temperature Ta and heat pre-seting of alarm temperature Tb in air-conditioner system; Judge the operational mode of air-conditioner then; If air-conditioner moves under refrigeration mode, this moment, indoor heat exchanger was an evaporimeter.If the indoor set airstrainer is dirty stifled to certain degree, this moment, the indoor set air quantity can corresponding reduction.Evaporimeter is owing to can not get sufficient exchange heat, and its coil temperature T continues to reduce.Electric-control system reads the numerical value of the temperature sensor at indoor heat exchanger coil pipe place with 10 seconds the time interval; Be coil temperature T, coil temperature T and refrigeration alarm temperature Ta made comparisons, if T≤Ta; After forcing indoor machine fan first scheduled time of high-speed cruising t1; Detect coil temperature T once more, if T≤Ta, the then dirty stifled signal of output filtering net.
If air-conditioner move under heating mode, this moment, indoor heat exchanger was a condenser, and dirty stifled during to certain degree when the indoor set airstrainer, the indoor set intake reduces, and condenser is owing to can not get abundant heat radiation, the lasting rising of its coil temperature T.Electric-control system was still whenever made comparisons coil temperature T and Tb at a distance from 10 seconds; In the sensing chamber heat exchanger coils temperature T and with heat alarm temperature Tb relatively; If T >=Tb behind pressure indoor machine fan second scheduled time of the high-speed cruising t2, detects coil temperature T once more; If T >=Tb, the then dirty stifled signal of output filtering net.
The span of first scheduled time t1 and second scheduled time t2 is 2-10 minutes, and the setting range of refrigeration alarm temperature Ta generally is 0-5 ℃, and the setting range that heats alarm temperature Tb generally is 50-55 ℃.Below, with t1=t2=5 minute, Ta=5 ℃, Tb=53 ℃ be that example is explained the dirty stifled flow process of reminding automatically of filter screen of air conditioner of the present invention, this parameter setting is that the inventor sums up the one group of preferred disposition that obtains through test of many times.
At first judge the operational mode of air-conditioner, referring to Fig. 1, if air-conditioner moves under refrigeration mode; When T≤5 ℃, then indoor electric-control system mandatory order indoor machine fan runs at high speed 5 minutes, reads the numerical value of coil temperature T after 5 minutes once more; If the indoor air filtration net is dirty really stifled, the intake of indoor set is with less, even make when fan runs up so; Coil temperature can be less than or equal to the refrigeration alarm temperature usually; Be T≤5 ℃, like this, can distinguish reason that air-conditioner coil temperature T descends and be since system refrigerant freeze to cause or because dirty stifled the causing of screen pack.Therefore; After indoor machine fan runs at high speed 5 minutes, T≤5 ℃, then indoor electric-control system judges that screen pack is dirty stifled; Start alarm module; Export dirty stifled alarm signal, for example on the display of indoor set, show " screen pack is dirty " printed words and/or drive buzzer to give the alarm, to remind user's cleaning and filtering net.Further, the back air-conditioner that gives the alarm still continues operation, just removes up to air-conditioner outage alarm, and the judged result of while electric-control system before this can zero clearing.
If air-conditioner moves under heating mode, when T >=53 ℃, then indoor automatically controlled system command indoor machine fan runs at high speed 5 minutes; If after 5 minutes, coil temperature T >=53 ℃ then can be judged; The dirty degree that needs cleaning of having blocked up and arrived appears in the indoor set airstrainer, at this moment, will send dirty stifled alarm signal; For example show on the display of indoor set that " screen pack is dirty " printed words and/or order buzzer sound the alarm, to reach the effect of reminding the user.
The present invention through the comparison of heat exchanging device coil temperature measured value and preset value, judges scientifically whether the screen pack of indoor set exists dirty stifled situation through comparison module, the dirty stifled identification module of screen pack.Mode as another kind enforcement; Whether air-conditioner CPU of the present invention starts the dirty stifled identification module of screen pack and carries before carrying out the dirty stifled identifying operation of screen pack making; Can stipulate to meet dirty stifled condition for identification and lasting a period of time, just start the dirty stifled identification module of screen pack when the observed temperature value.For refrigeration mode, be when heat exchanger coils temperature T≤Ta and lasting the 3rd scheduled time t3, just force first scheduled time of indoor machine fan high-speed cruising t1.And in heating mode, be when T≤Tb and lasting the 4th scheduled time t4, just force second scheduled time of indoor machine fan high-speed cruising t2.
The span of t1, t2 is 2-10 minutes, and the span of t3, t4 is 2-6 minutes, and the setting range of refrigeration alarm temperature Ta is 0-5 ℃, and the setting range that heats alarm temperature Tb is 50-55 ℃.Below, ℃ be that example is explained the dirty stifled flow process of reminding automatically of filter screen of air conditioner of the present invention with t1=t2=5 minute, t3=t4=3 minute, Ta=5 ℃, Tb=53:
Referring to Fig. 2, if air-conditioner moves under refrigeration mode, when heat exchanger coils temperature T≤5 ℃ and lasting 3 minutes; Then indoor electric-control system mandatory order indoor machine fan runs at high speed 5 minutes; Read the numerical value of coil temperature T after 5 minutes once more, if T≤5 ℃, then indoor electric-control system judges that screen pack is dirty stifled; Start alarm module, export dirty stifled alarm signal.Further, the back air-conditioner that gives the alarm still continues operation, and after the air-conditioner outage, alarm is just removed, and the judged result of while electric-control system before this can zero clearing.
If air-conditioner move under heating mode, when T >=53 ℃ and lasting 3 minutes, then indoor automatically controlled system command indoor machine fan ran at high speed 5 minutes, if after 5 minutes, dirty stifled alarm signal prompting user is then exported in coil temperature T >=53 ℃.
In said method; When detect coil temperature T and and Ta when making comparisons; Requiring " T≤Ta and continue 3 minutes " as judging the dirty stifled first condition key element of screen pack, is to be temporary transient fluctuation of system or continual and steady state in order to distinguish air-conditioner coil temperature T low excessively.In like manner, when detecting coil temperature T and make comparisons, as the dirty stifled condition of judgement screen pack, its objective is equally with " T >=Tb and continue 3 minutes " with Tb.
Referring to Fig. 3, as the mode of the third enforcement, when under refrigeration mode, moving as if air-conditioner; When heat exchanger coils temperature T≤5 ℃ and continue 3 minutes, then indoor electric-control system mandatory order indoor machine fan runs at high speed 5 minutes, reads the numerical value of coil temperature T after 5 minutes once more; In order to improve the stability of system; If T≤5 ℃ and continue the 5th scheduled time t5, the dirty stifled signal of output filtering net, indoor electric-control system starts alarm module.T5 value 2-7 minutes, optimum value are 3 minutes.
When air-conditioner moved under heating mode, electric-control system is still every, and just coil temperature T and Tb made comparisons at a distance from 10 seconds.When T >=53 ℃ and continue 3 minutes; Then indoor automatically controlled system command indoor machine fan runs at high speed 5 minutes, if after 5 minutes, and coil temperature T >=53 ℃ and when continuing the 6th scheduled time t6; The dirty stifled signal of output filtering net then, indoor electric-control system starts alarm module.T6 value 2-7 minutes, optimum value are 3 minutes.
The present invention also provides a kind of air-conditioner; Comprise refrigeration system and electric-control system; Refrigeration system is used to carry out refrigeration mode or heating mode operation; Electric-control system comprises controller, and controller comprises the dirty stifled identification module of operational mode judge module, refrigeration mode screen pack and the dirty stifled identification module of heating mode screen pack of cooling and warming alarm temperature presetting module, air-conditioning.Wherein, cooling and warming alarm temperature presetting module is used in air-conditioning system, presetting refrigeration alarm temperature Ta and heats alarm temperature Tb; The operational mode judge module of air-conditioning is used to judge the operational mode of air-conditioner, if refrigeration mode then judges through the dirty stifled identification module of refrigeration mode screen pack whether screen pack is dirty stifled; If heating mode, then whether the disconnected screen pack of the dirty stifled identification module of heating mode screen pack is dirty stifled; The dirty stifled identification module of refrigeration mode screen pack be used in the sensing chamber heat exchanger coils temperature T and with refrigeration alarm temperature Ta relatively; If T≤Ta behind pressure indoor machine fan first scheduled time of the high-speed cruising t1, detects coil temperature T once more; If T≤Ta, the then dirty stifled alarm signal of output filtering net; The dirty stifled identification module of heating mode screen pack be used in the sensing chamber heat exchanger coils temperature T and with heat alarm temperature Tb relatively; If T>=Tb behind pressure indoor machine fan second scheduled time of the high-speed cruising t2, detects coil temperature T once more; If T>=Tb, the then dirty stifled alarm signal of output filtering net.
Further, the dirty stifled identification module of refrigeration mode screen pack is used for when T≤Ta and lasting the 3rd scheduled time t3, forcing indoor machine fan first scheduled time of high-speed cruising t1; Detect coil temperature T once more, if T≤Ta, the then dirty stifled alarm signal of output filtering net; The dirty stifled identification module of heating mode screen pack is used for when T>=Tb and lasting the 4th scheduled time t4, forcing indoor machine fan second scheduled time of high-speed cruising t2, detects coil temperature T once more; If T>=Tb; The dirty stifled alarm signal of output filtering net then, according to the explanation of the dirty stifled automatic based reminding method of aforementioned filter screen of air conditioner, aforesaid operations can improve air-conditioner and judge the dirty stifled stability of screen pack.
Further, the dirty stifled identification module of refrigeration mode screen pack is used for when T≤Ta and lasting the 3rd scheduled time t3, forcing indoor machine fan first scheduled time of high-speed cruising t1; Detect coil temperature T once more; If T≤Ta and continue the 5th scheduled time t5, the dirty stifled alarm signal of output filtering net then, the dirty stifled identification module of heating mode screen pack is used for when T>=Tb and lasting the 4th scheduled time t4; Force indoor machine fan second scheduled time of high-speed cruising t2; Detect coil temperature T once more, if T>=Tb and when continuing the 6th scheduled time t6, the then dirty stifled alarm signal of output filtering net; According to the explanation of the dirty stifled automatic based reminding method of aforementioned filter screen of air conditioner, aforesaid operations can improve air-conditioner and judge the dirty stifled stability of screen pack.
Claims (10)
1. the dirty stifled automatic based reminding method of filter screen of air conditioner is characterized in that comprising the steps:
S1) in air-conditioner system, preset refrigeration alarm temperature Ta and heat alarm temperature Tb;
S2) judge the operational mode of air-conditioner, if refrigeration mode execution in step S3 then; If heating mode, then execution in step S4;
S3) in the sensing chamber heat exchanger coils temperature T and with refrigeration alarm temperature Ta relatively, if T≤Ta, force indoor machine fan first scheduled time of high-speed cruising t1 after, detect coil temperature T once more, if T≤Ta, the then dirty stifled alarm signal of output filtering net;
S4) in the sensing chamber heat exchanger coils temperature T and with heat alarm temperature Tb relatively, if T >=Tb, force indoor machine fan second scheduled time of high-speed cruising t2 after, detect coil temperature T once more, if T >=Tb, the then dirty stifled alarm signal of output filtering net.
2. the dirty stifled automatic based reminding method of filter screen of air conditioner according to claim 1, it is characterized in that: said first scheduled time t1 is 5 minutes, said second scheduled time t2 is 5 minutes.
3. the dirty stifled automatic based reminding method of filter screen of air conditioner according to claim 1, it is characterized in that: the setting range of said refrigeration alarm temperature Ta is 0-5 ℃, the said setting range that heats alarm temperature Tb is 50-55 ℃.
4. the dirty stifled automatic based reminding method of filter screen of air conditioner according to claim 1; It is characterized in that: in step S3; When T≤Ta and lasting the 3rd scheduled time t3, force indoor machine fan first scheduled time of high-speed cruising t1, detect coil temperature T once more; If T≤Ta, the then dirty stifled alarm signal of output filtering net.
5. the dirty stifled automatic based reminding method of filter screen of air conditioner according to claim 1; It is characterized in that: in step S4; When T >=Tb and lasting the 4th scheduled time t4, force indoor machine fan second scheduled time of high-speed cruising t2, detect coil temperature T once more; If T >=Tb, the then dirty stifled alarm signal of output filtering net.
6. the dirty stifled automatic based reminding method of filter screen of air conditioner according to claim 1; It is characterized in that: in step S3; When T≤Ta and lasting the 3rd scheduled time t3, force indoor machine fan first scheduled time of high-speed cruising t1, detect coil temperature T once more; If T≤Ta and lasting the 5th scheduled time t5, the then dirty stifled alarm signal of output filtering net.
7. the dirty stifled automatic based reminding method of filter screen of air conditioner according to claim 1; It is characterized in that: in step S4; When T >=Tb and lasting the 4th scheduled time t4, force indoor machine fan second scheduled time of high-speed cruising t2, detect coil temperature T once more; If T >=Tb and when continuing the 6th scheduled time t6, the then dirty stifled alarm signal of output filtering net.
8. air-conditioner; Comprise refrigeration system and electric-control system; Said refrigeration system is used to carry out refrigeration mode or heating mode operation; Said electric-control system comprises controller, it is characterized in that: said controller comprises the dirty stifled identification module of operational mode judge module, refrigeration mode screen pack and the dirty stifled identification module of heating mode screen pack of cooling and warming alarm temperature presetting module, air-conditioning
Said cooling and warming alarm temperature presetting module is used in air-conditioning system, presetting refrigeration alarm temperature Ta and heats alarm temperature Tb;
The operational mode judge module of said air-conditioning is used to judge the operational mode of air-conditioner, if refrigeration mode then judges through the dirty stifled identification module of refrigeration mode screen pack whether screen pack is dirty stifled; If heating mode, then whether the disconnected screen pack of the dirty stifled identification module of heating mode screen pack is dirty stifled;
The dirty stifled identification module of said refrigeration mode screen pack be used in the sensing chamber heat exchanger coils temperature T and with refrigeration alarm temperature Ta relatively; If T≤Ta behind pressure indoor machine fan first scheduled time of the high-speed cruising t1, detects coil temperature T once more; If T≤Ta, the then dirty stifled alarm signal of output filtering net;
The dirty stifled identification module of said heating mode screen pack be used in the sensing chamber heat exchanger coils temperature T and with heat alarm temperature Tb relatively; If T >=Tb behind pressure indoor machine fan second scheduled time of the high-speed cruising t2, detects coil temperature T once more; If T >=Tb, the then dirty stifled alarm signal of output filtering net.
9. air-conditioner according to claim 8; It is characterized in that: the dirty stifled identification module of said refrigeration mode screen pack is further used for when T≤Ta and lasting the 3rd scheduled time t3; Force indoor machine fan first scheduled time of high-speed cruising t1; Detect coil temperature T once more, if T≤Ta, the then dirty stifled alarm signal of output filtering net; The dirty stifled identification module of said heating mode screen pack is further used for when T>=Tb and lasting the 4th scheduled time t4, forcing indoor machine fan second scheduled time of high-speed cruising t2, detects coil temperature T once more, if T>=Tb, the then dirty stifled alarm signal of output filtering net.
10. air-conditioner according to claim 8; It is characterized in that: the dirty stifled identification module of said refrigeration mode screen pack is further used for when T≤Ta and lasting the 3rd scheduled time t3; Force indoor machine fan first scheduled time of high-speed cruising t1; Detect coil temperature T once more, if T≤Ta and lasting the 5th scheduled time t5, the then dirty stifled alarm signal of output filtering net; The dirty stifled identification module of said heating mode screen pack is further used for when T>=Tb and lasting the 4th scheduled time t4; Force indoor machine fan second scheduled time of high-speed cruising t2; Detect coil temperature T once more; If T>=Tb and when continuing the 6th scheduled time t6, the then dirty stifled alarm signal of output filtering net.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210265265.5A CN102748837B (en) | 2012-07-28 | 2012-07-28 | A kind of air-conditioner and filter screen dirtying thereof block up automatic reminding method |
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| CN201210265265.5A CN102748837B (en) | 2012-07-28 | 2012-07-28 | A kind of air-conditioner and filter screen dirtying thereof block up automatic reminding method |
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| CN102748837B CN102748837B (en) | 2016-04-20 |
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