Heat exchanger

a technology of heat exchanger and heat exchanger core, which is applied in the direction of lighting and heating apparatus, tubular elements, and stationary conduit assemblies, etc., can solve the problems of the heat exchanger core not having the required performance as a whole, and achieve excellent heat radiation performance, enhance the effect, and increase the resistance to air flow and water flow

Inactive Publication Date: 2007-03-29
SHOWA DENKO KK
View PDF10 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006] An object of the present invention is to solve the above problem and to provide a heat exchanger which, when used as a heater core, exhibits excellent heat radiation performance and has low resistance to air flow and water flow.
[0022] The heat exchanger of par. 1), when used as a heater core of a car air conditioner, exhibits excellent heat radiation performance and implements prevention of an increase in resistance to air flow and water flow.
[0023] The heat exchanger of par. 2) or 3) enhances the effect yielded by the heat exchanger of par. 1).

Problems solved by technology

Therefore, the heater core fails to have the required performance as a whole.

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
  • Heat exchanger
  • Heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] An embodiment of the present invention will next be described in detail with reference to the drawings. The present embodiment is an application of a heat exchanger of the present invention to a heater core of a car air conditioner.

[0030] The upper, lower, left-hand, and right-hand sides of FIG. 1 will be referred to as “upper,”“lower,”“left,” and “right,” respectively. The far side of the paper on which FIG. 1 appears (the upper side of FIG. 2) is referred to as the “front,” and the opposite side as the “rear.

[0031]FIG. 1 shows the general configuration of a heater core for a car air conditioner to which a heat exchanger of the present invention is applied. FIGS. 2 and 3 show the configuration of essential portions of the heater core.

[0032] In FIG. 1, a heater core 1 includes an upper header tank 2 and a lower header tank 3 which are made of aluminum, are vertically spaced apart from each other, and are elongated in the left-right direction, and a heat exchange core secti...

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 to be used as a heater core includes a pair of header tanks spaced apart from each other, a plurality of flat heat exchange tubes which are disposed between the two header tanks at predetermined intervals along a longitudinal direction of the header tanks with their width direction coinciding with an air flow direction and whose opposite end portions are connected to the header tanks, and a plurality of corrugate fins each disposed between the adjacent heat exchange tubes. Each heat exchange tube has an inner height Ht of 0.7 mm to 1.2 mm and a width of 24 mm to 30 mm as measured in the air flow direction. Each corrugate fin has a fin height Hf of 5.5 mm to 8.5 mm. This heat exchanger exhibits excellent heat radiation performance and low resistance to air flow and water flow.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to a heat exchanger preferably used as, for example, a heater core to be incorporated into a car air conditioner. [0002] Herein and in the appended claims, the term “aluminum” encompasses aluminum alloys in addition to pure aluminum. [0003] A conventionally known heater core for use in a car air conditioner includes a pair of header tanks spaced apart from each other, a plurality of flat heat exchange tubes which are disposed between the two header tanks at predetermined intervals along a longitudinal direction of the header tanks with their width direction coinciding with an air flow direction and whose opposite end portions are connected to the corresponding header tanks, and a plurality of corrugate fins each including wave crest portions, wave trough portions, and flat connection portions connecting together the corresponding wave crest portions and wave trough portions, and each disposed between the adjacent heat ...

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
IPC IPC(8): F28D1/02
CPCF28F1/126F28D1/0391
InventorYABE, TAKASHISUDOH, HIROYUKIHIRAYAMA, TAKASHI
OwnerSHOWA DENKO KK