Heat exchanger

Patent metadata

Field	Value
Publication number	US-10393452-B2
Application number	US-201515567393-A
Country	US
Kind code	B2
Filing date	May 29, 2015
Priority date	May 29, 2015
Publication date	Aug 27, 2019
Grant date	Aug 27, 2019

Abstract

A heat exchanger includes a fin having a plate shape and including a first region where a plurality of cutout portions are formed with intervals in a longitudinal direction that is a gravity direction, and a second region where the plurality of cutout portions are not formed in the longitudinal direction, and flat tubes attached to the plurality of cutout portions and intersecting the fin. Protruding portions protruding from a planar portion of the fin are formed on the fin, and the protruding portions each have a shape in which a first end is located in the first region and a second end is located in the second region and below the first end.

First claim

The invention claimed is:

1. A heat exchanger, comprising:
a fin having a plate shape and including a first region where cutout portions are formed with intervals in a longitudinal direction, which is a gravity direction, and a second region where cutout portions are not formed in the longitudinal direction; and
flat tubes attached to the cutout portions and intersecting the fin, wherein
the fin has a first edge and a second edge, the second edge is opposite to the first edge, and the second edge is included in the second region,
the fin has protruding portions, which protrude from a planar portion of the fin,
each of the protruding portions has a first end and a second end, and each protruding portion has a shape in which the first end is located in the first region and the second end is located in the second region,
the first end is located above the second end, and the second end is located below the first end, and between the first end and the second end, the protruding portion slopes in a gravitationally downward direction from the first end toward the second end such that condensation water is directed by each protruding portion from the first end to the second end and from the first region to the second region,
in each protruding portion, the second end is spaced from the second edge of the fin, and
the second region is planar except for the protruding portions so that the condensation water, which falls from the second end, drains along the second region without being redirected to the first region.

2. The heat exchanger of claim 1 , wherein each of the protruding portions is formed into an arc shape.

3. The heat exchanger of claim 1 , wherein
the first end of each of the protruding portions is formed above a center of a corresponding one of the flat tubes in the longitudinal direction of the fin, and
the second end is formed below the center of the corresponding one of the flat tubes in the longitudinal direction of the fin.

4. The heat exchanger of claim 1 , wherein each of the protruding portions is provided between adjacent ones of the cutout portions.

5. The heat exchanger of claim 1 , wherein
the fin has a first slit cutting portion by which the fin is raised, a second slit cutting portion by which the fin is raised and a cut and raised piece, which connects the first slit cutting portion and the second slit cutting portion, and
the first end is formed between the first slit raising portion and the second region.

6. The heat exchanger of claim 5 , wherein the first end is formed below the first slit raising portion of the cut-and-raised piece.

7. The heat exchanger of claim 5 , wherein an end of the cut-and raised piece on the side of the second region is formed between a center of one of the flat tubes and the second region in a transverse direction of the fin.

8. The heat exchanger of claim 5 , wherein the cut-and-raised piece is formed to extend perpendicularly to a transverse direction of the fin.

9. The heat exchanger of claim 5 , wherein the cut-and-raised piece is formed to extend obliquely to a transverse direction of the fin.

Assignees

• Mitsubishi Electric Corp

Inventors

• Nakamura Shin
• Ishibashi Akira
• Takahashi Tomohiko
• Ogata Hidenari
• Terashima Ryo
• Ono Junichi
• Ueyama Satoshi
• Kato Yohei
• Tanda Tsubasa
• Kitani Kenichi

Classifications

• F28D2021/0071

  Evaporators · CPC title

• F25B39/02

  Evaporators · CPC title

• F28D1/05366

  Assemblies of conduits connected to common headers, e.g. core type radiators · CPC title

• F28F17/005 Primary

  Means for draining condensates from heat exchangers, e.g. from evaporators (F28B9/08 takes precedence) · CPC title

• F28F1/325

  Fins with openings · CPC title