CN100339653C - Control method of dehumidification operating mode of domestic variable frequency cold and worm air conditioner - Google Patents
Control method of dehumidification operating mode of domestic variable frequency cold and worm air conditioner Download PDFInfo
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- CN100339653C CN100339653C CNB011442689A CN01144268A CN100339653C CN 100339653 C CN100339653 C CN 100339653C CN B011442689 A CNB011442689 A CN B011442689A CN 01144268 A CN01144268 A CN 01144268A CN 100339653 C CN100339653 C CN 100339653C
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- 238000000034 method Methods 0.000 claims description 9
- 238000007791 dehumidification Methods 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 description 21
- 239000007788 liquid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000007710 freezing Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
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Abstract
The present invention relates to a method for controlling the dehumidification operating mode of a household frequency conversion cooling and heating air conditioner, which is characterized in that the method comprises the following stages: firstly, when indoor temperature reaches set temperature, the operating frequency of a compressor is lowered, and a dehumidifying operation stage is carried out; secondly, in the dehumidifying operation stage, a detection stage that the current frequency of the compressor is compared with a set frequency X is carried out; thirdly, in the detection stage, if the current frequency is lower than the set frequency X, a stage that a two-way valve arranged in an expansion mechanism is closed is carried out; fourthly, in the two-way valve closing stage, a stage detecting whether the dehumidifying operation is on is carried out, if the dehumidifying operation is carried out, then the original closed state of the two-way valve is maintained; fifthly, if the dehumidifying operation is not carried out, then a stage stopping detecting the dehumidification operating mode is carried out. The household frequency conversion cooling and heating air conditioner of the present invention can reduce humidity but can not cause the indoor temperature to be too low when the dehumidification operating mode is selected and prevents the phenomenon of bad dehumidifying effect due to the too high temperature of an evaporator.
Description
Technical field
When the present invention relates to a kind of domestic variable frequency cold type air conditioner and selecting the dehumidifying drive manner, can reduce humidity but can not make the control method of the low excessively dehumidification operating mode of domestic variable frequency cold and worm air conditioner of indoor temperature.
Background technology
The main member of common freezing cycle device is as shown in Figure 1: the compressor 1 that the gaseous state refrigerant of low-temp low-pressure is transformed into high temperature and high pressure gas state refrigerant; To become the refrigerant of high temperature and high pressure gas state by compressor 1, be converted into the condenser 2 of high temperature high pressure liquid state refrigerant; By the refrigerant of condenser 2, be converted into low-temp low-pressure liquid condition refrigerant and the expansion mechanism 3 of inner heat release with the high temperature high pressure liquid state; To become the refrigerant of low-temp low-pressure liquid condition by expansion mechanism 3, and be converted into low-temp low-pressure gaseous state refrigerant and suck the evaporimeter 4 of outside heat; The refrigerant pipe P that connects each main member; Above-mentioned freezing cycle device is applicable to aspects such as refrigerator air-conditioner, utilize to suck the evaporimeter 4 of outside heat and to the condenser 2 of outside heat release, reaches the indoor purpose of fresh-keeping foodstuff or changes in temperature.
The main member that utilizes the domestic variable frequency cold type air conditioner of above-mentioned cold EGR shown in Figure 2: after the domestic variable frequency cold type air conditioner energising starting, the opposite side connection outdoor heat exchanger of the four-way spare 5 that is connected with the compressor 1 of compression refrigerant is a condenser 2; Opposite side connection indoor heat exchanger at the expansion mechanism 3 that is attached thereto is an evaporimeter 4; Evaporimeter 4 is connected an other side of above-mentioned four-way spare 5 again, and a remaining side of four-way spare 5 is connected with compressor 1.In outdoor heat exchanger is that the side of condenser 2 is provided with outdoor fan 6, is provided with indoor fan 7 and indoor heat exchanger is the side of evaporimeter 4.
As mentioned above, the direction of domestic variable frequency cold type air conditioner change four-way spare 5 changes the function that is installed in indoor interior heat exchanger 4 and reaches the indoor purpose of changes in temperature.When opening warm braw, passes through by domestic variable frequency cold type air conditioner the starting of compressor 1, refrigerant is a compressor 1 by the direction of arrow A, and------------order of compressor 1 circulates outdoor heat exchanger 2---four-way spare 5---expansion mechanism 3 indoor heat exchanger 4 four-way spare 5, thereby indoor heat exchanger 4 plays the effect of condenser and hot gas is discharged into indoor, keeps indoor warm state.When if domestic variable frequency cold type air conditioner is opened cold wind, the direction that changes four-way spare 5 makes refrigerant flow by the direction of arrow B; The effect that this moment, indoor heat exchanger 4 played evaporimeter is discharged into the indoor indoor nice and cool state of keeping to cold air.
Therefore, with the domestic variable frequency cold type air conditioner of selecting the changes in temperature mode season, can realize the adjusting of the indoor ability of changes in temperature, control by the running frequency that changes compressor 1.
The poor effect of drying because the evaporimeter bulk temperature is high in addition, be such moisture moving control method and cold wind, control the weak wind operation that similar difference is indoor fan to room temperature, so room temperature descends and feels slight chill in the air, and the high and poor effect of drying of evaporimeter bulk temperature.
The problem that the present invention solves is, used the expansion mechanism two-port valve when closing low-frequency operation, can utilize length capillaceous to reach the control method of the dehumidification operating mode of domestic variable frequency cold and worm air conditioner of required purpose when making the dehumidifying running.
The technical solution adopted in the present invention is: the control method of dehumidification operating mode of domestic variable frequency cold and worm air conditioner is characterized in that having comprised following several stages; First: when indoor temperature reaches design temperature, reduce the compressor operating frequency and the dehumidifying phase run that carries out; Second: in above-mentioned dehumidifying phase run, compare the detection-phase of existing frequency of compressor and setpoint frequency X; The 3rd: in detection-phase, if existing frequency is less than setpoint frequency X, then close be connected in parallel on expansion mechanism that evaporimeter links to each other on stage of two-port valve; The the 4th: in above-mentioned two-port valve dwell period, periodically detect the phase run that whether dehumidifies, if then keep former two-port valve closed condition; The the 5th: if not the detection-phase of the drive manner that then stops to dehumidify.
The domestic variable frequency cold type air conditioner that the present invention sets forth can reduce humidity when selecting the dehumidifying drive manner but can not make indoor temperature low excessively, and the phenomenon of the poor effect that prevented to dry because of evaporator temperature is too high.
Description of drawings
Fig. 1 has represented to constitute the main member of freezing cycle device.
Fig. 2 has represented to be applicable to outside the main member of freezing cycle device of domestic air conditioner, has also represented attached members such as fan.
Fig. 4 has represented the control flow chart about the dehumidifying of the domestic air conditioner among the present invention drive manner.Wherein
1: compressor 2: condenser (outdoor heat exchanger) 3: expansion mechanism
4: evaporimeter (indoor heat exchanger) 5: four-way spare 6: outdoor fan
7: indoor fan 8: two-port valve P: the refrigerant pipe
The specific embodiment
Be described in detail as follows below with reference to chart:
As shown in Figure 3, be applicable to that the main member of freezing cycle device of the domestic variable frequency cold type air conditioner among the present invention is as follows: the compressor 1 that the gaseous state refrigerant of low-temp low-pressure is transformed into high temperature and high pressure gas state refrigerant; The refrigerant that has become the high temperature and high pressure gas state by compressor 1, be converted into the condenser (outdoor heat exchanger) 2 of high temperature high pressure liquid state refrigerant; The refrigerant that becomes the high temperature high pressure liquid state, be converted into low-temp low-pressure liquid condition refrigerant and the expansion mechanism 3 of inner heat release by condenser 2; Become the refrigerant of low-temp low-pressure liquid condition by expansion mechanism 3, be converted into low-temp low-pressure gaseous state refrigerant and suck the evaporimeter (indoor heat exchanger) 4 of outside heat; In addition, open-minded when in the expansion mechanism 3 that constitutes by capillary, being provided with cold wind, the two-port valve 8 of closing during warm braw; The warm braw capillary pipe length is longer than cold wind capillary pipe length.
As shown in Figure 4, the control method of domestic air conditioner dehumidifying drive manner comprised as the next stage among the present invention:
The S11 stage---when indoor temperature reaches design temperature, reduce the compressor operating frequency and the dehumidifying phase run that carries out; S12---in above-mentioned dehumidifying phase run, compare the detection-phase of existing frequency of compressor and setpoint frequency X; S13---in detection-phase, if existing frequency is less than setpoint frequency X, close be connected in parallel on expansion mechanism that evaporimeter links to each other on stage of two-port valve; S14---in above-mentioned two-port valve dwell period, periodically detect the phase run that whether dehumidifies; If S15---then keep former two-port valve closed condition, if not the detection-phase of the drive manner that then stops to dehumidify.
As mentioned above, adopt the control method of domestic air conditioner dehumidifying drive manner among the present invention, what are also long compared with the long capillary length of cold wind low frequency because of the warm braw capillary pipe length, and finish evaporation process later in the evaporimeter middle part, so almost there is not heat exchange with the room air that sucks by the liquid cooling matchmaker of evaporimeter (indoor heat exchanger).Because of the capillary pipe length that extended, the temperature of evaporator inlet is reduced in addition, further reduced the surface temperature of evaporator inlet side, thereby reached the effect of effectively drying.Promptly reduce the cold wind ability and further reduce evaporator surface temperature and reach the effect of effectively drying.
Claims (1)
1. the control method of a dehumidification operating mode of domestic variable frequency cold and worm air conditioner is characterized in that having comprised following several stages; First: when indoor temperature reaches design temperature, reduce the compressor operating frequency and the dehumidifying phase run (S11) that carries out; Second: in above-mentioned dehumidifying phase run, compare the detection-phase (S12) of existing frequency of compressor and setpoint frequency X; The 3rd: in detection-phase, if existing frequency is less than setpoint frequency X, then close be connected in parallel on expansion mechanism that evaporimeter links to each other on stage (S13) of two-port valve; The the 4th: in above-mentioned two-port valve dwell period, periodically detect the phase run (S14) that whether dehumidifies, if then keep former two-port valve closed condition; The the 5th: if not the detection-phase (S15) of the drive manner that then stops to dehumidify.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011442689A CN100339653C (en) | 2001-12-17 | 2001-12-17 | Control method of dehumidification operating mode of domestic variable frequency cold and worm air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011442689A CN100339653C (en) | 2001-12-17 | 2001-12-17 | Control method of dehumidification operating mode of domestic variable frequency cold and worm air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1427213A CN1427213A (en) | 2003-07-02 |
| CN100339653C true CN100339653C (en) | 2007-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011442689A Expired - Fee Related CN100339653C (en) | 2001-12-17 | 2001-12-17 | Control method of dehumidification operating mode of domestic variable frequency cold and worm air conditioner |
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| Country | Link |
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| CN (1) | CN100339653C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706145B (en) * | 2009-11-13 | 2012-08-22 | 广东美的电器股份有限公司 | Control method for improving comfort of air conditioner |
| KR102010375B1 (en) * | 2013-11-29 | 2019-08-16 | 웅진코웨이 주식회사 | Apparatus for dehumidification and method for controlling the same |
| CN107560121A (en) * | 2017-09-06 | 2018-01-09 | 珠海格力电器股份有限公司 | Air conditioner control method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04158144A (en) * | 1990-10-19 | 1992-06-01 | Matsushita Electric Ind Co Ltd | Air conditioner |
| JPH04295536A (en) * | 1991-03-22 | 1992-10-20 | Fujitsu General Ltd | Controller of air-conditioner |
| JP2000213822A (en) * | 1999-01-25 | 2000-08-02 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN2438037Y (en) * | 2000-08-07 | 2001-07-04 | 财团法人工业技术研究院 | Multifunctional outdoor unit of split air conditioner |
-
2001
- 2001-12-17 CN CNB011442689A patent/CN100339653C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04158144A (en) * | 1990-10-19 | 1992-06-01 | Matsushita Electric Ind Co Ltd | Air conditioner |
| JPH04295536A (en) * | 1991-03-22 | 1992-10-20 | Fujitsu General Ltd | Controller of air-conditioner |
| JP2000213822A (en) * | 1999-01-25 | 2000-08-02 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN2438037Y (en) * | 2000-08-07 | 2001-07-04 | 财团法人工业技术研究院 | Multifunctional outdoor unit of split air conditioner |
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| CN1427213A (en) | 2003-07-02 |
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Granted publication date: 20070926 Termination date: 20101217 |