CN100455923C - Method of controlling operation for removing dampness in air conditioner - Google Patents

Method of controlling operation for removing dampness in air conditioner Download PDF

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Publication number
CN100455923C
CN100455923C CNB2004100201454A CN200410020145A CN100455923C CN 100455923 C CN100455923 C CN 100455923C CN B2004100201454 A CNB2004100201454 A CN B2004100201454A CN 200410020145 A CN200410020145 A CN 200410020145A CN 100455923 C CN100455923 C CN 100455923C
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China
Prior art keywords
compressor
heater
stage
temperature
air conditioner
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Expired - Fee Related
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CNB2004100201454A
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Chinese (zh)
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CN1727770A (en
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廉宽镐
李起燮
金暻桓
崔皓善
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LG Electronics Tianjin Appliances Co Ltd
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LG Electronics Tianjin Appliances Co Ltd
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Abstract

The present invention provides a control method for the dehumidification operation of an air conditioner, which can prevent the overcurrent of the primary stage point of the dehumidification operation and lead the operating current of the air conditioner to be more stable. As the control method for the dehumidifying work of an air conditioner, on which a heater is arranged, the control method for the dehumidification operation of an air conditioner has the characteristics comprising each following stage that a stage, in which a compressor is started up to start the dehumidification operation when the dehumidification operation is selected by a user, a stage which judges whether the setting time passes after the dehumidification operation, and a stage, in which the heater is started up to carry out the dehumidification operation in the state that the compressor is started up after the setting time passes. The method can decrease the peak current in the primary stage by shutting the heater on a starting-up initial point of the compressor, and can avoid danger brought by the overload current.

Description

The dehumidifying job control method of air-conditioning
Technical field
The present invention relates to a kind of air-conditioning; In more detail, air conditioner dehumidification job control method of the present invention (Control Method for Dehumidify of Air Conditioner) can allow the operating current of air-conditioning more stable.
Background technology
Air-conditioning normally by allowing the inner cold-producing medium concurrent looks that circulates change, utilizes the heat exchanging process between cold-producing medium and the surrounding air, to the indoor plant equipment of freezing, heating.Air-conditioning is a kind of refrigeration, heating combined equipment, can reduce indoor air themperature in summer, uses and be used as warm-air drier winter, improves indoor temperature.
The air-conditioning of exploitation listing recently not only has above-mentioned refrigeration, heat-production functions, but also has dehumidification function.
Below, with reference to accompanying drawing, the air-conditioning with dehumidification function is described.
Fig. 1 is the air-conditioning overall structure schematic diagram with dehumidification function.
As shown in the figure, air-conditioning is made up of compressor 1, outdoor heat converter 2, indoor heat converter 3, four-way valve 8, two-way valve B1, heater 9 usually.After the low temperature that compressor 1 is discharged indoor heat converter 3, low-pressure refrigerant vapor suck, it is compressed into the steam of high temperature, high pressure.The HTHP attitude refrigerant vapour that outdoor heat converter 2 allows above-mentioned compressor 1 discharge dispels the heat in water or air, is transformed into the high pressure saturated solution.The high pressure saturated solution that above-mentioned outdoor heat converter 2 is discharged becomes low-temperature low-pressure refrigerant when flowing through expansion gear 4, flow to indoor heat converter 3, and be evaporated into the saturated vapor that does not have liquid in indoor heat converter 3.Four-way valve 8 is pressed refrigeration mode or heating mode, regulates flowing of above-mentioned cold-producing medium.When removing wet trade, two-way valve B1 directly arranges high-pressure refrigerant to indoor heat converter 3.When removing wet trade, after the dry air that heater 9 is discharged indoor heat converter 3 heated, row was to indoor.
Here, above-mentioned indoor heat converter 3 is made up of the 1st heat exchanger 3-1, expansion gear the 5, the 2nd heat exchanger 3-2, two-way valve B2.When removing wet trade, the 1st heat exchanger 3-1 dispels the heat after sucking the high-pressure gas-liquid mix refrigerant, discharges high pressure liquid refrigerant.The high pressure liquid refrigerant that expansion gear 5 allows the 1st heat exchanger 3-1 discharge expands, and is transformed into low-pressure, liquid refrigerant.After the 2nd heat exchanger 3-2 sucks the low-pressure gas-liquid mix refrigerant of above-mentioned expansion gear 5 discharges, allow its evaporate, discharge the low-temperature low-pressure refrigerant that does not have liquid refrigerant.Two-way valve B2 prevents the highly pressurised liquid that the 1st heat exchanger 3-1 discharges, and directly row is to the 2nd heat exchanger 3-2.
Air-conditioning with said structure, its course of work is as follows.
At first, in the heating mode, by the high-temperature high-pressure refrigerant that compressor 1 compresses, the four-way valve 8 of flowing through, inflow indoor heat exchanger 3 after being condensed, becomes low-temperature low-pressure refrigerant when flowing through expansion gear 4.
In addition, when the room air that is sucked by indoor fan 7 flows through above-mentioned indoor heat converter 3 surfaces, produce heat exchange, be heated to form high temperature air, row is to indoor.Thereby raising indoor temperature.
At this moment, the two-way valve B2 between the 1st heat exchanger 3-1 and the 2nd heat exchanger 3-2 is closed, and allows indoor heat converter 3 as condenser working.
Afterwards, after outdoor heat converter 2 sucks the cold-producing medium of above-mentioned low-temp low-pressure, allow its evaporate, discharge gaseous refrigerant.Compressor 1 sucks the gaseous refrigerant that above-mentioned outdoor heat converter 2 is discharged, and is compressed into high-temperature high-pressure refrigerant.By carrying out above-mentioned each operation repeatedly, heat operation.
In the refrigeration mode, by the high-temperature high-pressure refrigerant that compressor 1 compresses, the four-way valve 8 of flowing through, inflow outdoor heat exchanger 2.Above-mentioned cold-producing medium is transformed into low-temperature low-pressure refrigerant after being condensed when flowing through expansion gear 4 in outdoor heat converter 2.
Afterwards, indoor heat converter 3 sucks above-mentioned low-temperature low-pressure refrigerant, and allows its evaporate, and discharges gaseous refrigerant.And above-mentioned compressor 1 sucks the gaseous refrigerant that indoor heat converter 3 is discharged, and it is compressed into high-temperature high-pressure refrigerant.
At this moment, the two-way valve B2 between the 1st heat exchanger 3-1 and the 2nd heat exchanger 3-2 is closed, and allows indoor heat converter 3 as evaporator operation.
Meanwhile,, lowered the temperature during the low-temperature surface of the above-mentioned indoor heat converter 3 of flowing through, become Cryogenic air row, reduced indoor temperature to indoor by the room air that indoor fan 7 sucks.
In the dehumidification mode, by the high-temperature high-pressure refrigerant that compressor 1 compresses, four-way valve 8 inflow outdoor heat exchangers 2 of flowing through.At this moment outdoor fan 6 is rotated with the slow-speed of revolution.Therefore above-mentioned high-temperature high-pressure refrigerant under the state that almost is not cooled, directly flows to indoor heat converter 3 by two-way valve B1.
At this moment, above-mentioned two-way valve B2 is isolated into the 1st heat exchanger 3-1 and the 2nd heat exchanger 3-2 to indoor heat converter 3.
That is, above-mentioned the 1st heat exchanger 3-1 sucks the high-pressure gas-liquid mix refrigerant, allows its dispel the heat, and discharges high pressure liquid refrigerant.The above-mentioned high pressure liquid refrigerant above-mentioned expansion gear 5 of flowing through is transformed into low-pressure, liquid refrigerant, flows to the 2nd heat exchanger 3-2.The 2nd heat exchanger 3-2 evaporates above-mentioned cold-producing medium, and discharging does not have liquid refrigerant to get low-temperature low-pressure refrigerant.
At this moment, sucked to such an extent that room air carries out heat exchange when flowing through above-mentioned heat exchanger 3, be removed moisture by indoor fan 7.Remove dry air behind the moisture by in the heater 9 heating back flowed into chamber.
The problem that indoor temperature descends can appear when removing wet trade.In order to address the above problem heater is installed in the air-conditioning.Below, to the air conditioner dehumidification job control method of heater is installed, describe.
As shown in Figure 2, the user selects except that (S1) behind the wet trade, and compressor 1 and heater 9 are opened (S2) simultaneously, remove wet trade.
When removing wet trade, press some cycles and confirm current indoor temperature, unlatching, the closing motion of control compressor 1 and heater 9.
That is, when current indoor temperature reduced by 0.5 ℃ than design temperature T, under the state of heater 9, (S2 S3), removed wet trade to close compressor 1.
In addition, when current indoor temperature exceeds 0.5 ℃ from design temperature, under the state of heater 9, open again change compressor 1 (S5, S6).
Carry out said process (S3~S5), proceed to remove wet trade repeatedly.
Fig. 3 when removing wet trade, temperature control characteristic and humidity control characteristic schematic diagram.Fig. 4 is the air-conditioning work current characteristics schematic diagram relevant with the work of compressor 1 and heater 9.
The dehumidifying job control method of conventional art, (design temperature ± 0.5 ℃) control compressor 1 in certain temperature range is opened, close compressor repeatedly, obtains the effect on moisture extraction relevant with the temperature control characteristic as shown in Figure 3.
But, as shown in Figure 4,, open compressor 1 and heater 9 simultaneously removing wet trade initial stage point.And follow-up removing in the wet trade under the state that continues heater 9, controlled in the mode of unlatching, close compressor 1.Therefore instantaneous peak current can appear.
Above-mentioned peak point current might cause current overload, and when current overload occurring, fault that might initiating system.
Summary of the invention
The present invention proposes in order to address the above problem, and its purpose prevents to remove the overload current of wet trade initial stage point for a kind of air conditioner dehumidification job control method is provided, and makes the operating current of air-conditioning more stable.
In order to achieve the above object, air conditioner dehumidification job control method of the present invention, the air conditioner dehumidification operation control as heater is installed is characterized in that, comprising: when being selected to remove wet trade by the user, open compressor, begin to remove the stage of wet trade; After beginning to remove wet trade, the time to whether through having set, the stage of judging; Through after the above-mentioned time of having set, heater under the state of opening compressor, the stage of removing wet trade.
Aforesaid air conditioner dehumidification job control method wherein also comprises: carry out above-mentioned remove wet trade during, press stage of some cycles detection indoor temperature; Whether the indoor temperature to above-mentioned detection reduces certain rank from the temperature T of having set, the stage of judging; If above-mentioned indoor temperature reduces certain rank from design temperature, stage of close compressor under the state of heater then.
Aforesaid air conditioner dehumidification job control method wherein also comprises: to the indoor temperature of above-mentioned detection whether from the temperature T of having set certain rank that rises, the stage of judging; If above-mentioned indoor temperature from design temperature certain rank that rises, is opened the stage of compressor when then closing heater; When opening behind the compressor, open the stage of heater under the state of compressor through above-mentioned time of having set.
Aforesaid air conditioner dehumidification job control method, wherein remove wet trade during in, if reduce by 0.5 ℃ from the temperature T set, then under the state of heater, close compressor if rise 0.5 ℃ from the temperature T of having set, is then opened compressor when closing heater.
Aforesaid air conditioner dehumidification job control method, the time of wherein having set is to open compressor relief heater to open the time of delaying, and is 1 minute to 2 minutes.
Air conditioner dehumidification job control method of the present invention is closed heater on the initial point of opening compressor, and through heater behind the certain hour, can reduce the peak point current except that the wet trade initial point.
That is, close heater, reduce the initial stage peak point current, can avoid the danger of overload current by opening on the initial point at compressor.
Description of drawings
Fig. 1 is the air-conditioning overall structure schematic diagram with dehumidification function;
Fig. 2 is the air conditioner dehumidification job control method flow chart of conventional art;
Fig. 3 is a temperature and humidity control characteristic schematic diagram;
Fig. 4 is that tradition is removed in the wet trade control compressor and heater operating current characteristic schematic diagram;
Fig. 5 is an air conditioner dehumidification job control method flow chart of the present invention;
Fig. 6 is of the present invention except that in the wet trade control, air-conditioning work current characteristics schematic diagram.
The critical piece description of reference numerals
1: compressor 2: outdoor heat converter
3: indoor heat converter 4,5: expansion gear
6: outdoor fan 7: indoor fan
8: four-way valve B1, B2: two-way valve
9: heater
The specific embodiment
Other purposes of the present invention, characteristic and advantage, can illustrate, further be understood by the following examples.
Below, with reference to accompanying drawing,, describe air conditioner dehumidification job control method embodiment of the present invention.
The course of work to the air conditioner dehumidification operation is carried out simple explanation.
As shown in Figure 1, by the high-temperature high-pressure refrigerant that compressor 1 compresses, inflow outdoor heat exchanger 2.At this moment above-mentioned high-temperature high-pressure refrigerant is under the state that almost is not cooled, by previous status flowed into chamber outer heat-exchanger 2.
Above-mentioned outdoor heat converter 2 sucks the high-pressure gas-liquid mix refrigerants, allows its heat radiation, expansion gear 4 is drawn into low pressure liquid to highly pressurised liquid after, discharge the low-temperature low-pressure refrigerant that does not have liquid refrigerant.
At this moment, when the room air that is sucked by indoor fan 7 flows through above-mentioned indoor heat converter 3, carry out heat exchange, be removed moisture.Above-mentioned dewatered dry air is arranged to indoor by heater 9 heating backs.
Below, the air-conditioning control program of the present invention when removing wet trade describes.
Fig. 5 is an air conditioner dehumidification job control method flow chart of the present invention.
The present invention relates to have the air-conditioning of heater.The problem that temperature when above-mentioned heater can solve air-conditioning and removes wet trade descends.The invention is characterized in, can stablize the operating current of air-conditioning when drive compression machine 1 and heater 9.
Below, with reference to Fig. 5, air conditioner dehumidification job control method of the present invention is described.
At first, select to be removed (S10) behind the wet trade, close unlatching compressor 1 (S20) under the state of heater 9, begin to remove wet trade by the user.
After beginning to remove wet trade, the time to whether through having set, judge (S30).
Above-mentioned judged result (S30), if after removing wet trade and beginning, passed through setting-up time, then under the state of opening compressor 1, heater 9 (S40).
Here, setting-up time is to open compressor 1 relief heater 9 to open the time of delaying, and can be set at 1 minute to 2 minutes.
Next, remove wet trade during in, detect indoor temperature.
Then, whether the indoor temperature of above-mentioned detection is reduced more than 0.5 ℃ from the temperature T of having set, judge (S50).
Above-mentioned judged result (S50), if indoor temperature reduces more than 0.5 ℃ from design temperature T, then under the state of heater 9, close compressor 1 (S60).
In addition, whether the indoor temperature of above-mentioned detection is risen more than 0.5 ℃ from the temperature T of having set, judge (S70).
Above-mentioned judged result (S70) if indoor temperature rises more than 0.5 ℃ from design temperature T, is then opened compressor 1 (S80) when closing heater 9.
Then, to the time of whether passing through above-mentioned setting after compressor 1 unlatching, judge (S90).
Above-mentioned judged result (S90) if after the compressor starts work, has been passed through setting-up time, is then opening under the state of compressor 1 heater 9 (S100).
That is, after the present invention opens compressor 1, through heater 9 behind certain setting-up time.
Carry out said process (S50~S100), remove wet trade repeatedly.
Fig. 6 when adopting dehumidifying job control program of the present invention, air-conditioning work current characteristics schematic diagram.
Among the present invention, when removing wet trade, on the initial point of opening compressor 1, close heater 9.And through heater 9 behind the certain hour.As shown in Figure 6, the peak point current at work initial stage significantly reduces than traditional electric current (waveform that dots), can allow the operating current waveform of air-conditioning obtain gently.
By above-mentioned description,, in the scope that does not break away from the technology of the present invention thought, can carry out various change and modification if the practitioner of one's own profession then can know.
Therefore, technical scope of the present invention can not be limited at the record content of embodiment, should be stipulated with right request scope.

Claims (5)

1, a kind of air conditioner dehumidification job control method, the air conditioner dehumidification operation control as heater is installed is characterized in that, comprising:
When being selected to remove wet trade, open compressor, begin to remove the stage of wet trade by the user;
After beginning to remove wet trade, the time to whether through having set, the stage of judging;
Through after the above-mentioned time of having set, heater under the state of opening compressor, the stage of removing wet trade.
2, air conditioner dehumidification job control method according to claim 1 is characterized in that, also comprises:
Carry out above-mentioned remove wet trade during, press stage of some cycles detection indoor temperature;
Whether the indoor temperature to above-mentioned detection reduces certain rank from the temperature T of having set, the stage of judging;
If above-mentioned indoor temperature reduces certain rank from design temperature, stage of close compressor under the state of heater then.
3, air conditioner dehumidification job control method according to claim 2 is characterized in that, also comprises:
To the indoor temperature of above-mentioned detection whether from the temperature T of having set certain rank that rises, the stage of judging;
If above-mentioned indoor temperature from design temperature certain rank that rises, is opened the stage of compressor when then closing heater;
When opening behind the compressor, open the stage of heater under the state of compressor through above-mentioned time of having set.
4, according to claim 2 or 3 described air conditioner dehumidification job control methods, it is characterized in that:
Remove wet trade during in, if reduce by 0.5 ℃ from the temperature T set, then under the state of heater, close compressor,
If rise 0.5 ℃, then when closing heater, open compressor from the temperature T of having set.
5, according to claim 1 or 3 described air conditioner dehumidification job control methods, it is characterized in that:
The above-mentioned time of having set is to open compressor relief heater to open the time of delaying, and is 1 minute to 2 minutes.
CNB2004100201454A 2004-07-26 2004-07-26 Method of controlling operation for removing dampness in air conditioner Expired - Fee Related CN100455923C (en)

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CNB2004100201454A CN100455923C (en) 2004-07-26 2004-07-26 Method of controlling operation for removing dampness in air conditioner

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CN100455923C true CN100455923C (en) 2009-01-28

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4579858B2 (en) * 2006-03-31 2010-11-10 パナソニック株式会社 Surveillance camera device and dehumidifying device
CN104729060A (en) * 2013-12-19 2015-06-24 珠海格力电器股份有限公司 Temperature-control dehumidification air conditioner and method
CN113531667B (en) * 2021-06-21 2022-07-15 青岛海尔空调器有限总公司 Method and device for dehumidifying air conditioner and intelligent air conditioner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60143816A (en) * 1983-12-29 1985-07-30 Matsushita Electric Ind Co Ltd Apparatus for controlling defrosting of dehumidifier
JPH0285623A (en) * 1989-08-30 1990-03-27 Hitachi Ltd Dehumidifier
CN1044162A (en) * 1989-01-10 1990-07-25 气动技术有限公司 Improved self-contained air drying unit
CN1101412A (en) * 1993-06-01 1995-04-12 株式会社日立制作所 Air-conditioning equipment
CN1467441A (en) * 2002-07-03 2004-01-14 Lg������ʽ���� Air conditioning system with two compressors and method for operating the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60143816A (en) * 1983-12-29 1985-07-30 Matsushita Electric Ind Co Ltd Apparatus for controlling defrosting of dehumidifier
CN1044162A (en) * 1989-01-10 1990-07-25 气动技术有限公司 Improved self-contained air drying unit
JPH0285623A (en) * 1989-08-30 1990-03-27 Hitachi Ltd Dehumidifier
CN1101412A (en) * 1993-06-01 1995-04-12 株式会社日立制作所 Air-conditioning equipment
CN1467441A (en) * 2002-07-03 2004-01-14 Lg������ʽ���� Air conditioning system with two compressors and method for operating the same

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Granted publication date: 20090128