Refrigeration cycle apparatus
First Claim
1. A refrigeration cycle apparatus including a first heat exchanger and a second heat exchanger which form a circulation path for a refrigerant, and a linear compressor having a piston and a linear motor which makes the piston reciprocate, and circulating a refrigerant in the circulation path by the reciprocating motion of the piston, said apparatus comprising:
- an inverter for generating an AC current for driving the linear motor;
an actual circulation rate detector for detecting an actual refrigerant circulation rate indicating the volume of the refrigerant that is discharged from or sucked into the linear compressor per unit time by the reciprocating motion of the piston;
a target circulation rate derivation unit for deriving a target refrigerant circulation rate indicating the volume of the refrigerant to be discharged from or sucked into the linear compressor per unit time, on the basis of an ambient temperature of at least one of the first heat exchanger and the second heat exchanger, and a target temperature that is set for at least one of the heat exchangers; and
a controller for controlling the operation of the inverter so as to decrease a difference between the actual refrigerant circulation rate and the target refrigerant circulation rate.
1 Assignment
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Accused Products
Abstract
A refrigeration cycle apparatus having a linear compressor is provided with a volume circulation rate instruction unit for obtaining a volume circulation rate Vco of a refrigerant in accordance with refrigerating capacity required of the refrigeration cycle apparatus, on the basis of an ambient temperature of an indoor heat exchanger (evaporator), a target temperature set on the evaporator by the user, and an ambient temperature of an outdoor heat exchanger (condenser); a volume circulation rate detector for detecting a volume circulation rate Vcd of the refrigerant that actually circulates in a refrigerant circulation path of the refrigeration cycle apparatus; and an inverter for generating an AC current for driving the linear compressor; wherein the inverter is controlled so as to decrease a difference between the volume circulation rate Vco and the volume circulation rate Vcd.
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Citations
13 Claims
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1. A refrigeration cycle apparatus including a first heat exchanger and a second heat exchanger which form a circulation path for a refrigerant, and a linear compressor having a piston and a linear motor which makes the piston reciprocate, and circulating a refrigerant in the circulation path by the reciprocating motion of the piston, said apparatus comprising:
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an inverter for generating an AC current for driving the linear motor;
an actual circulation rate detector for detecting an actual refrigerant circulation rate indicating the volume of the refrigerant that is discharged from or sucked into the linear compressor per unit time by the reciprocating motion of the piston;
a target circulation rate derivation unit for deriving a target refrigerant circulation rate indicating the volume of the refrigerant to be discharged from or sucked into the linear compressor per unit time, on the basis of an ambient temperature of at least one of the first heat exchanger and the second heat exchanger, and a target temperature that is set for at least one of the heat exchangers; and
a controller for controlling the operation of the inverter so as to decrease a difference between the actual refrigerant circulation rate and the target refrigerant circulation rate. - View Dependent Claims (2, 3, 10, 11, 12, 13)
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4. A refrigeration cycle apparatus having a first heat exchanger and a second heat exchanger which form a circulation path for a refrigerant, and a linear compressor having a piston and a linear motor which makes the piston reciprocate, and circulating the refrigerant in the circulation path by the reciprocating motion of the piston, said apparatus comprising:
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an inverter for generating an AC current for driving the linear motor;
an actual circulation rate detector for detecting an actual refrigerant circulation rate indicating the weight of the refrigerant that is discharged from or sucked into the linear compressor per unit time by the reciprocating motion of the piston;
a target circulation rate derivation unit for deriving a target refrigerant circulation rate indicating the weight of the refrigerant to be discharged from or sucked into the linear compressor per unit time, on the basis of an ambient temperature of at least one of the first heat exchanger and the second heat exchanger, and a target temperature that is set for at least one of the heat exchangers; and
a controller for controlling the operation of the inverter so as to decrease a difference between the actual refrigerant circulation rate and the target refrigerant circulation rate. - View Dependent Claims (5, 6, 7, 8, 9)
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Specification