Heat source unit

Patent metadata

Field	Value
Publication number	US-10436458-B2
Application number	US-201615565246-A
Country	US
Kind code	B2
Filing date	Apr 20, 2016
Priority date	Apr 21, 2015
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

Air heat exchangers are composed of a first air heat exchanger through a fourth air heat exchanger, which are formed in a L shape, which include long side portions and short side portions in a state where one end portion sides in an extension direction of tubes, in which a coolant is flowed, are bent; and each of the short side portions is disposed at a short hand side of a rectangular shape, in such a way that an arrangement shape of the first air heat exchanger through the fourth air heat exchanger is formed as a frame shape having a rectangular shape viewed from a plane.

First claim

What is claimed is:

1. A heat source unit comprising:
a plurality of air heat exchangers including radiating fins having a plate shape, which are corresponding to a predetermined number, are spaced in a plate thickness direction of the radiating fins so as to be arranged, and a plurality of tubes, in which a coolant in a freezing cycle is flowed, are inserted toward the radiating fins in the plate thickness direction of the radiating fins so as to be linked to the radiating fins, are faced and arranged in a right-left direction, at an upper portion of a machine room having a rectangular shape in planar view, in a state where a distance at an upper portion side is expanded in such a way that the air heat exchangers are formed in a V shape viewed from a short side; wherein
the air heat exchangers are composed of a first air heat exchanger through a fourth air heat exchanger, each formed in a L shape, which include long side portions and short side portions in a state where one end portion sides in an extension direction of the tubes are bent; and each of the short side portions is disposed at a short side of the machine room having a rectangular shape in planar view, in such a way that an arrangement shape of the first air heat exchanger through the fourth air heat exchanger is formed as a frame shape having a rectangular shape in planar view;
wherein header portions are provided at end portions of the short side portions in the first air heat exchanger through the fourth air heat exchanger, and hairpin turn portions are provided at end portions of the long side portions.

2. The heat source unit as recited in claim 1 , wherein the first air heat exchanger through the fourth air heat exchanger are corresponding to freezing circuits of systems, which are mutually independent, so as to be connected, and are configured in such a way that the first air heat exchanger through the fourth air heat exchanger can be operated with respect to each of the freezing circuits.

3. The heat source unit as recited in claim 1 , wherein the machine room is formed in a rectangular solid shape.

4. The heat source unit as recited in claim 1 , wherein a heat exchanging device of a chiller device, which is formed in such a way that heat is exchanged between a coolant circuit at a heat source side, which composes the freezing cycle, and a circular passage of a heat transfer fluid at a user side, is disposed at the inside of the machine room.

5. The heat source unit as recited in claim 4 , wherein a main transfer supply pipe to the user side and a main return pipe from the user side, which compose the circular passage at the user side, are disposed in such a way that the main transfer supply pipe and the main return pipe penetrate the machine room in the short side of the machine room; and a connecting portion, which can be linked to the circular passage, is provided at each of end portions in a short hand direction of the main transfer supply pipe and the main return pipe.

6. The heat source unit, wherein a plurality of the heat source units, as recited in claim 1 , are linked on their short sides.

7. The heat source unit as recited in claim 6 , wherein a control mechanism of a control board of each of coolant circuits is commonly used for each of coolant circuits, in which the air heat exchangers are arranged at an identical surface in a heat source mechanism long hand direction, in each of the heat source units of a plurality of the linked heat source units.

8. The heat source unit as recited in claim 6 , wherein a control mechanism of a control board of each of coolant circuits is commonly used for each of coolant circuits, in each of the heat source units of a plurality of the linked heat source units.

Assignees

• Mitsubishi Electric Corp

Inventors

• Nishimoto Keisuke
• Okoshi Yasushi
• Ito Takuya
• Yamaguchi Hiroshi

Classifications

• F24F1/16 Primary

  Arrangement or mounting thereof · CPC title

• F24F1/18 Primary

  characterised by their shape · CPC title

• F28B1/06

  using air or other gas as the cooling medium · CPC title

• F28D1/0475

  the conduits having a single U-bend · CPC title

• F25B1/00

  Compression machines, plants or systems with non-reversible cycle (F25B3/00, F25B5/00, F25B6/00, F25B7/00, F25B9/00 take precedence) · CPC title