Heat exchanger and air-conditioning apparatus

Patent metadata

Field	Value
Publication number	US-2018164005-A1
Application number	US-201615737403-A
Country	US
Kind code	A1
Filing date	Mar 11, 2016
Priority date	Jul 10, 2015
Publication date	Jun 14, 2018
Grant date	—

Abstract

A heat exchanger and an air-conditioning apparatus that exhibit high performance, and also provide reliability in strength and corrosion resistance. The heat exchanger includes a plurality of fins each including a fin collar formed in a short cylindrical shape by perforating a flat base plate, the plurality of fins being stacked by serially connecting fin collars of the respective fins, the serially connected fin collars being bonded to form a conduit line and a fin core, the conduit line including a resin layer formed on an inner surface thereof. The heat exchanger also includes a reinforcing member having a length corresponding to a length of the conduit line from one end to the other end thereof, to improve rigidity of the conduit line.

First claim

1 . A heat exchanger including a plurality of fins each including a fin collar formed in a short cylindrical shape by perforating a flat base plate, the plurality of fins being stacked by serially connecting fin collars of the respective fins, the serially connected fin collars being bonded to form a plurality of conduit lines and a fin core, the conduit lines each including a resin layer formed on an inner surface thereof, the heat exchanger comprising
a reinforcing member provided to at least one, but not all, of the conduit lines, and having a length corresponding to a length of the conduit lines from one end to an other end thereof, to improve rigidity of the conduit lines.

2 . The heat exchanger of claim 1 ,
wherein the liquid flows through the at least one, but not all, of the conduit lines to which the reinforcing member is provided.

3 . The heat exchanger of claim 1 ,
wherein at least a part of the reinforcing member is covered with the same resin layer covering the inner surface of the conduit line.

4 . The heat exchanger of claim 1 ,
wherein the reinforcing member includes a resin structural material located inside the at least one, but not all, of the conduit lines.

5 . The heat exchanger of claim 1 ,
wherein the reinforcing member includes a resin-filled portion filled with resin, the resin-filled portion being formed by filling an inner space of the at least one, but not all, of the conduit lines.

6 . The heat exchanger of claim 1 ,
wherein the reinforcing member is configured to fasten both end faces of the fin core with a support rod passed through the at least one, but not all, of the conduit lines.

7 . The heat exchanger of claim 1 ,
wherein the reinforcing member includes a metal structure fitted to a slit formed in the fin collar and having an edge sticking out into an inner space of the at least one, but not all, of the conduit lines.

8 . The heat exchanger of claim 1 ,
wherein the reinforcing member includes a metal pipe inserted and fixed in the at least one, but not all, of the conduit lines.

9 . The heat exchanger of claim 8 ,
wherein the reinforcing member includes a side plate attached to an end face of the plurality of fins, to insert and fix the metal pipe.

10 . The heat exchanger of claim 1 ,
wherein the at least one, but not all, of the conduit lines including the reinforcing member, is different in diameter from other conduit lines.

11 . The heat exchanger of claim 1 ,
wherein the some of the conduit lines including the reinforcing member is located at a position closest to an outer periphery of a fin of the plurality of fins.

12 . The heat exchanger of claim 1 ,
wherein the reinforcing member is attached to penetrate through a header connected to an end portion of the conduit line in the fin core, or a communication member for conducting liquid from one end to an other end of the conduit lines.

13 . The heat exchanger of claim 12 ,
wherein the reinforcing member is integrally formed with the header, or with the communication member.

14 . The heat exchanger of claim 12 ,
wherein the communication member is formed in one integral piece to enclose a plurality of liquid passages and connect conduit lines, and the reinforcing member is provided in at the least one, but not all, of conduit lines through which the liquid flows.

15 . An air-conditioning apparatus comprising:
a compressor; an outdoor heat exchanger; an electronic expansion valve; and an indoor heat exchanger, wherein the indoor heat exchanger includes the heat exchanger of claim 1 .

Assignees

• Mitsubishi Electric Corp

Inventors

• Miyawaki Kosuke
• Hori Takahiro
• Yoneda Norihiro
• Yoshimura Susumu
• Onaka Yoji
• Matsumoto Takashi
• Akaiwa Ryota
• Yoshida Yasuhiro
• Miya Kazuhiro

Classifications

• F28F1/32

  the means having portions engaging further tubular elements · CPC title

• F25B39/00 Primary

  Evaporators; Condensers · CPC title

• F28F9/02

  Header boxes; End plates · CPC title

• F28F3/086

  having one or more openings therein forming tubular heat-exchange passages · CPC title

• F28D1/047

  the conduits being bent, e.g. in a serpentine or zig-zag · CPC title