Air conditioning apparatus capable of performing a dehumidifying operation

Claim 2

An air conditioner apparatus capable of performing a dehumidifying operation, comprising: a compressor for compressing refrigerant and supplying compressed refrigerant; an outdoor heat exchanger for exchanging heat between the refrigerant and outdoor air; an outdoor fan for supplying the outdoor air into said outdoor heat exchanger; pressure reducing means for reducing the pressure of the refrigerant; a first indoor heat exchanger for exchanging heat between the refrigerant and indoor air; an electric expansion valve whose opening can change; a second indoor heat exchanger for exchanging heat between the refrigerant and the indoor air; an indoor fan for circulating the indoor air through said second indoor heat exchanger and said first indoor heat exchanger; first control means for supplying the refrigerant from said compressor back in to said compressor through said outdoor heat exchanger, said pressure reducing means, said first indoor heat exchanger, said electric expansion valve and said second indoor heat exchanger, and for opening said electric expansion valve fully, to thereby perform a cooling operation; second control means for supplying the refrigerant from said compressor back into said compressor through said first indoor heat exchanger, said electric expansion valve and said second indoor heat exchanger, and for reducing the opening of said electric expansion valve, to thereby perform a dehumidifying operation; an indoor temperature sensor for detecting indoor temperature (Ta); an indoor humidity sensor for detecting indoor humidity (Ha); first detection means for detecting a deviation (T) of the indoor temperature (Ta) from a preset indoor temperature (Ts) and a change (ΔT) in the deviation (T), during the dehumidifying operation; second detection means for detecting a deviation (H) of the indoor humidity (Ha) from a preset indoor humidity (Hs) and a change (ΔH) in the deviation (H); adjustment value calculating means for performing fuzzy inference based on the deviation (T), the change (ΔT) , the deviation (H) and the change (ΔH), to thereby calculate an adjustment value (ΔF) for adjusting a drive frequency (F) of said compressor and an adjustment value (ΔN) for adjusting a rotational speed (N) of said outdoor fan; first adjustment means for adjusting the drive frequency (F) of said compressor by said adjustment value (ΔF); and second adjustment means for adjusting the rotational speed (N) of said outdoor fan by said adjustment value (ΔN).

Claim 3

An apparatus according to claim 1, wherein said adjustment value calculating means calculates an adjustment value (ΔF 1 ) from the deviation (T) and the change (ΔT), calculates a an adjustment value (ΔF 2 ) from the deviation (H) and the change (ΔH), and synthesize the adjustment values (ΔF 1 ) and (ΔF 2 ), to thereby obtaining said adjustment value (ΔF), and calculates said adjustment value (ΔN) from the deviation (T) and the change (ΔT).

Claim 4

An apparatus according to claim 1, wherein an adjustment value (ΔQ) for adjusting an amount (Q) of sensible heat at said outdoor heat exchanger, from the deviation (T) and the change (ΔT), calculates said adjustment value (ΔF) from the deviation (H) and the change (ΔH), and calculates said adjustment value (ΔN) from the adjustment value (ΔQ) and the adjustment value (ΔF).

Claim 5

An apparatus according to claim 1, wherein said adjustment value calculating means calculates said adjustment value (ΔF) from the deviation (T) and the deviation (H), and calculates said adjustment value (ΔN) from the deviation (T) and the change (ΔT).

Claim 6

An apparatus according to claim 1, further comprising third control means for supplying the refrigerant from said compressor back into said compressor through said second indoor heat exchanger, said electric expansion valve, and said first indoor heat exchanger, said pressure reducing means and said outdoor heat exchanger, and for opening said electric expansion valve fully, to thereby perform a heating operation.

Claim 7

An air conditioner apparatus capable of performing a dehumidifying operation, comprising: a compressor for compressing refrigerant and sup plying compressed refrigerant; an outdoor heat exchanger for exchanging heat between the refrigerant and outdoor air; an outdoor fan for supplying the outdoor air into said outdoor heat exchanger; pressure reducing means for reducing the pressure of the refrigerant; a first indoor heat exchanger for exchanging heat between the refrigerant and indoor air; an electric expansion valve whose opening can change; a second indoor heat exchanger for exchanging heat between the refrigerant and the indoor air; an indoor fan for circulating the indoor air through said second indoor heat exchanger and said first indoor heat exchanger; first control means for supplying the refrigerant from said compressor back in to said compressor through said outdoor heat exchanger, said pressure reducing means, said first indoor heat exchanger, said electric expansion valve and said second indoor heat exchanger, and for opening said electric expansion valve fully, to thereby perform a cooling operation; second control means for supplying the refrigerant from said compressor back into said compressor through said first indoor heat exchanger, said electric expansion valve and said second indoor heat exchanger, and for reducing the opening of said electric expansion valve, to thereby perform a dehumidifying operation; an indoor temperature sensor for detecting indoor temperature (Ta); an indoor humidity sensor for detecting indoor humidity (Ha); first detection means for detecting a deviation (T) of the indoor temperature (Ta) from a preset indoor temperature (Ts) and a change (ΔTa) in the indoor temperature (Ta), during the dehumidifying operation; second detection means for detecting a deviation (H) of the indoor humidity (Ha) from a preset indoor humidity (Hs) and a change (ΔH) in the deviation (H); adjustment value calculating means for performing fuzzy inference based on the deviation (T), the change (ΔTa), the deviation (H) and the change (ΔH), to thereby calculate an adjustment value (ΔF) for adjusting a drive frequency (F) of said compressor and an adjustment value (ΔN) for adjusting a rotational speed (N) of said outdoor fan; first adjustment means for adjusting the drive frequency (F) of said compressor by said adjustment value (ΔF); and second adjustment means for adjusting the rotational speed (N) of said outdoor fan by said adjustment value (ΔN).

Claim 8

An air conditioner apparatus capable of performing a dehumidifying operation, comprising: a compressor for compressing refrigerant and sup plying compressed refrigerant; an outdoor heat exchanger for exchanging heat between the refrigerant and outdoor air; an outdoor fan for supplying the outdoor air into said outdoor heat exchanger; pressure reducing means for reducing the pressure of the refrigerant; a first indoor heat exchanger for exchanging heat between the refrigerant and indoor air; an electric expansion valve whose opening can change; a second indoor heat exchanger for exchanging heat between the refrigerant and the indoor air; an indoor fan for circulating the indoor air through said second indoor heat exchanger and said first indoor heat exchanger; first control means for supplying the refrigerant from said compressor back in to said compressor through said outdoor heat exchanger, said pressure reducing means, said first indoor heat exchanger, said electric expansion valve and said second indoor heat exchanger, and for opening said electric expansion valve fully, to thereby perform a cooling operation; second control means for supplying the refrigerant from said compressor back into said compressor through said first indoor heat exchanger, said electric expansion valve and said second indoor heat exchanger, and for reducing the opening of said electric expansion valve, to thereby perform a dehumidifying operation; an indoor temperature sensor for detecting indoor temperature (Ta); an indoor humidity sensor for detecting indoor humidity (Ha); first detection means for detecting a deviation (T) of the indoor temperature (Ta) from a preset indoor temperature (Ts) and a change (ΔTa) in the indoor temperature (Ta), during the dehumidifying operation; second detection means for detecting a deviation (H) of the indoor humidity (Ha) from a preset indoor humidity (Hs) and a change (ΔH) in the deviation (H); adjustment value calculating means for performing fuzzy inference based on the deviation (T), the change (ΔTa), the deviation (H) and the change (ΔH), to thereby calculate an adjustment value (ΔF) for adjusting a drive frequency (F) of said compressor and an adjustment value (ΔN) for adjusting a rotational speed (N) of said outdoor fan; first adjustment means for adjusting the drive frequency (F) of said compressor by said adjustment value (ΔF); and second adjustment means for adjusting the rotational speed (N) of said outdoor fan by said adjustment value (ΔN).

Claim 9

An apparatus according to claim 6, wherein said adjustment value calculating means calculates an adjustment value (ΔF 1 ) from the deviation (T) and the change (ΔT), calculates a an adjustment value (ΔF 2 ) from the deviation (H) and the change (ΔH), and synthesize the adjustment values (ΔF 1 ) and (ΔF 2 ), to thereby obtaining said adjustment value (ΔF), and calculates said adjustment value (ΔN) from the deviation (T) and the change (ΔT).

Claim 10

An apparatus according to claim 6, wherein an adjustment value (ΔQ) for adjusting an amount (Q) of sensible heat at said outdoor heat exchanger, from the deviation (T) and the change (ΔT), calculates said adjustment value (ΔF) from the deviation (H) and the change (ΔH), and calculates said adjustment value (ΔN) from the adjustment value (ΔQ) and the adjustment value (ΔF).

Claim 11

An apparatus according to claim 6, wherein said adjustment value calculating means calculates said adjustment value (ΔF) from the deviation (T) and the deviation (H), and calculates said adjustment value (ΔN) from the deviation (T) and the change (ΔT).

Claim 12

An apparatus according to claim 6, further comprising third control means for supplying the refrigerant from said compressor back into said compressor through said second indoor heat exchanger, said electric expansion valve, and said first indoor heat exchanger, said pressure reducing means and said outdoor heat exchanger, and for opening said electric expansion valve fully, to thereby perform a heating operation.