Unlock instant, AI-driven research and patent intelligence for your innovation.

Heat exchanger and air conditioner using the same

A heat exchanger and heat transfer tube technology, applied in the field of heat transfer tubes, can solve the problems of low dripping performance, reduced strength, and inability to fully improve dripping performance, etc.

Inactive Publication Date: 2003-07-30
HITACHI LTD
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The heat exchangers disclosed in the above-mentioned Documents 1 and 2 use fins separated from each other, but pose a problem that their strength decreases when they are stacked as a heat exchanger in the direction of gravity, and their dripping performance is poor when used as an evaporator. Low
[0005] On the other hand, the heat exchangers disclosed in the above documents 3 to 5 are configured to obtain improved dripping performance, but there arises a problem that the dripping cannot be sufficiently improved simply by inclining the lower ends of the fins or arranging the lower ends in a zigzag shape. performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heat exchanger and air conditioner using the same
  • Heat exchanger and air conditioner using the same
  • Heat exchanger and air conditioner using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Now, embodiments of the present invention will be described with reference to the drawings.

[0030] figure 1 4 through 4 represent a first embodiment of the present invention. figure 1 , 2A and 2B represent the structure of an independent fin-tube heat exchanger 100 according to the first embodiment of the present invention, figure 1 is a perspective view of the heat exchanger, and Figure 2A with 2B is an enlarged view of the heat exchanger.

[0031] exist figure 1 In , one heat transfer tube 2 passes through a flange 103 formed in an individual fin 101 in which a slit 105 is formed. The lower end 101L and the upper end 101U of the fin 101 are bent in directions opposite to each other in the fin thickness direction. More specifically, only the upper end 101U and the lower end 101L are bent so as to form peaks and valleys along a line connecting the centers of the shorter sides of the fins. Leave the portion around flange 103 and slit 105 flat. By bending the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A heat exchanger composed by overlapping a plurality of heat exchanger units each of which is formed by inserting a plurality of fins over one or a plurality of heat transfer tubes. The fins are worked so that a pair of opposed fins of the overlapped heat exchanger units are brought into contact with each other at one or more points. This heat exchanger constitutes an air conditioner when the heat exchanger units are overlapped in a direction of gravity.

Description

technical field [0001] The present invention relates to a heat exchanger, such as a heat exchanger to be used in a refrigerator / air conditioner, and more particularly, to a finned heat transfer tube having fins on its outer surface to Promotes heat transfer in heat exchangers and refrigerators / air conditioners. Background technique [0002] Japanese Patent Examined Publication No. 52-42255 (Document 1) and Japanese Patent Unexamined Publication No. 63-197886 (Document 2) are well known as conventional techniques, which we call an independent finned tube A heat exchanger in which a plurality of fins each having a through hole is inserted above a heat transfer tube. Document 1 discloses a method by forming through-holes in a strip-shaped long material, forming flanges around the through-holes, forming fins having the same shape by cutting out the long material between the through-holes, by A heat exchange is made by superimposing a plurality of fins to form blocks, passing a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F28F1/30F28D1/047F28F1/24F28F1/32F28F17/00
CPCF28F1/24F28D1/0477
Inventor 鹿园直毅畑田敏夫伊藤正昭木村秀行竹田澄义小国研作安田弘出石峰敏佐藤实杉山达也
Owner HITACHI LTD