Heat pump system, defrosting method for a heat pump system, and controller
AssigneeCarrier Corporation
InventorsXi Feng, Guangyu Shen
Life of this patent
Estimating the term…
Abstract
A heat pump system, a defrosting method for the heat pump system, and a controller. The heat pump system includes a heat exchanger assembly for exchanging heat with a fluid medium, the heat exchanger assembly comprised a first heat exchanger and a second heat exchanger arranged in parallel, the second heat exchanger being arranged upstream of the first heat exchanger in the flow direction of the fluid medium, and when the heat pump system is operating in a heating mode and the temperature and/or ambient humidity to which the heat exchanger assembly is currently exposed reach a pre-set value, the second heat exchanger and the first heat exchanger function as a condenser and an evaporator, respectively.
Claims15
A heat pump system, comprising a heat exchanger assembly for exchanging heat with a fluid medium, wherein the heat exchanger assembly comprises a first heat exchanger and a second heat exchanger arranged in parallel, the second heat exchanger being arranged upstream of the first heat exchanger in the flow direction of the fluid medium, and when the heat pump system is operating in a heating mode and a temperature and/or an ambient humidity to which the heat exchanger assembly is currently exposed reach a pre-set value, the second heat exchanger and the first heat exchanger function as a condenser and an evaporator, respectively, wherein the heat pump system comprises:
- a first four-way reversing valve having an interface D, an interface C connected to a first port of the first heat exchanger, an interface S, and an interface E;
- a second four-way reversing valve having an interface D, an interface C connected to a first port of the second heat exchanger, an interface S, and an interface E;
- a compressor having a discharge port connected to the interface D of the first four-way reversing valve and the interface D of the second four-way reversing valve, and a suction port connected to the interface S of the first four-way reversing valve and the interface S of the second four-way reversing valve;
- a cooler having a port connected to the interface E of the first four-way reversing valve and the interface E of the second four-way reversing valve, and another port connected to a second port of the first heat exchanger and a second port of the second heat exchanger;
- and
- a check valve disposed between the interface E of the second four-way reversing valve and the cooler, for preventing a heat exchanging medium in the heat pump system from returning to the interface E of the second four-way reversing valve.
A heat pump system, comprising a heat exchanger assembly for exchanging heat with a fluid medium, wherein the heat exchanger assembly comprises a first heat exchanger and a second heat exchanger arranged in parallel, the second heat exchanger being arranged upstream of the first heat exchanger in the flow direction of the fluid medium, and when the heat pump system is operating in a heating mode and the temperature and/or ambient humidity to which the heat exchanger assembly is currently exposed reach a pre-set value, the second heat exchanger and the first heat exchanger function as a condenser and an evaporator, respectively, wherein the heat pump system comprises:
- a first four-way reversing valve having an interface D, an interface C connected to a first port of the first heat exchanger, an interface S, and an interface E;
- a second four-way reversing valve having an interface D, an interface C connected to a first port of the second heat exchanger, an interface S, and an interface E;
- a compressor having a discharge port connected to the interface D of the first four-way reversing valve and the interface D of the second four-way reversing valve, and a suction port connected to the interface S of the first four-way reversing valve and the interface S of the second four-way reversing valve;
- a cooler having a port connected to the interface E of the first four-way reversing valve, and another port connected to a second port of the first heat exchanger and a second port of the second heat exchanger;
- and
- a bypass device disposed between the interface E and the interface S of the second four-way reversing valve.
Dependencies are inferred from the claim text.