US 2020/0393155 A1Published application

Air-conditioning apparatus

AssigneeMitsubishi Electric Corporation

InventorsShigeo TAKATA, Takuya KONTANI

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Abstract

An air-conditioning apparatus includes a plurality of indoor units. Each of the indoor units includes a heat-medium flow adjusting valve and a heat exchanger. The heat-medium flow adjusting valve adjusts the flow rate of a heat medium that flows into the heat-medium flow adjusting valve, and causes the heat medium to flow out of the heat-medium flow adjusting valve. The heat exchanger causes heat exchange to be performed between the heat medium and air. The heat medium flows into the heat exchanger from an inflow side of the heat exchanger. The inflow side of the heat exchanger is connected to an outflow side of the heat-medium flow adjusting valve. The plurality of indoor units are connected in series.

Claims22

Dependent claims

An air-conditioning apparatus comprising a plurality of indoor units each including:

a heat-medium flow adjusting valve having an inflow port through which the heat medium flows into the heat-medium flow adjusting valve, and a plurality of outflow ports configured to control a flow rate of the heat medium, and allow the heat medium to flow out of the heat-medium flow adjusting valve;
and
a heat exchanger configured to cause heat exchange to be performed between the heat medium and air, the heat medium flowing into the heat exchanger from an inflow side of the heat exchanger, the inflow side of the heat exchanger being connected to one of the plurality of outflow ports of the heat-medium flow adjusting valve,
wherein the plurality of indoor units are connected in series,
the each of the plurality of indoor units further includes a bypass pipe that is provided such that an other of the plurality of outflow ports of the heat-medium flow adjusting valve is connected to an outflow side of the heat exchanger from which the heat medium flows out of the heat exchanger, and
the bypass pipe is provided to extend through a region located outside the each of the plurality of indoor units.

3 more elements

An air-conditioning apparatus comprising a plurality of indoor units each including:

a heat-medium flow adjusting valve configured to adjust a flow rate of a heat medium that flows into the heat-medium flow adjusting valve, and cause the heat medium to flow out of the heat-medium flow adjusting valve;
and
a heat exchanger configured to cause heat exchange to be performed between the heat medium and air, the heat medium flowing into the heat exchanger from an inflow side of the heat exchanger, the inflow side of the heat exchanger being connected to an outflow side of the heat-medium flow adjusting valve,
wherein a plurality of systems are provided, each of the plurality of systems including the plurality of indoor units connected in series, and the plurality of systems are connected in parallel.

1 more element

An air-conditioning apparatus comprising:

a plurality of indoor units each including,
a heat-medium flow adjusting valve configured to adjust a flow rate of a heat medium that flows into the heat-medium flow adjusting valve, and cause the heat medium to flow out of the heat-medium flow adjusting valve, and
a heat exchanger configured to cause heat exchange to be performed between the heat medium and air, an inflow side of the heat exchanger being connected to an outflow side of the heat-medium flow adjusting valve;
an outdoor unit configured to generate cooling energy or heating energy by circulating refrigerant;
and
a relay device including an intermediate heat exchanger configured to cause heat exchange to be performed between the refrigerant and the heat medium,
wherein the plurality of indoor units are connected in series.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/967,820Filed 2 Mar 2018
Published: 17 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

F24F 3/065
Characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units: with a…
F24F 11/46
For purposes related to the operation of the system, e.g. for safety or monitoring: improving electric energy efficiency or saving
F24F 5/001
Cooling apparatus specially adapted for use in air-conditioning: compression cycle type
F24F 11/49
For purposes related to the operation of the system, e.g. for safety or monitoring: ensuring correct operation, e.g. by trial operation or…

Family

US 11,408,627 B2Related patent
US 2020/0393155 A1This patent

From the US filing history. Foreign family members aren’t listed.

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