CN201003927Y

CN201003927Y - Concave heat exchanger core

Info

Publication number: CN201003927Y
Application number: CNU200620085887XU
Authority: CN
Inventors: 李政
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-23
Filing date: 2006-06-23
Publication date: 2008-01-09
Anticipated expiration: 2016-06-23

Abstract

The utility model relates to a concave strip shape heat exchanger core capable of reducing the low heat exchange material consumption, which comprises a heat exchange strip, a cooling tube, a main sheet and an attached side board that are connected through braze welding; wherein the width of the heat exchange strip is smaller than the width of the original heat exchange strip and the size between two outer edges of the cooling tube in the core thickness direction; while the width of the heat exchange strip is equal to the distance between the contact point of a round arc and a straight line at two side edges of the cooling tube. Although the utility model is reduced the width of the heat exchange strip, yet the heat exchange performance of the core is remained.

Description

Recessed band needle recuperator fuse

Technical field

The utility model relates to the heat exchanger fuse of car radiator corrugated tube type fuse and other corrugated tube type structure.

Background technology

At present, the most corrugated tube type structures that adopt of the fuse of known car radiator, heat exchange element wherein has only two kinds, a kind of is the heat exchange band, and another kind is a cooling tube, and these two kinds of heat exchange elements are apart from one another by near discharging, main leaf is equipped with at two ends at cooling tube, in the outside of heat exchange band attached side plate is housed, has formed a complete heat exchanger fuse thus, be linked to be and be one through soldering.This fuse is at thickness direction, the width dimensions of heat exchange band is greater than the physical dimension 2mm of cooling tube, be every side 1mm, in fact, really putting in place of heat exchange bandwidth size, it should be physical dimension less than cooling tube, the outer rim of its width dimensions should be terminated to the tangent place of the circular arc and the straight line of the outermost cooling tube outer rim of fuse, cooling tube has seaming pipe and ratio-frequency welded tube, its cross section of the pipe of these two kinds of structures all is oblate, therefore, have only cooling tube straight line portion could with the soldering of heat exchange band together, and circular arc portion does not contact with the heat exchange band.Cooling tube and the soldering of heat exchange band are one, effective heat transfer type of these two kinds of heat exchange elements is heat conduction, and the primary condition of heat conduction be heat exchange band and cooling tube only in the place that contacts with each other and also temperature can not set up simultaneously, so discontiguous place does not have the heat conduction between the two.Cooling tube is a thermal source, the heat exchange band is the uiform section fin of cooling tube, at the weld of heat exchange band and the cooling tube rib Ji Chu of uiform section fin just, the heat that conduction is come is maximum, direction along hot-fluid, the heat that transmits can be along with fewer and feweri with the increase of rib Ji Chu distance, do not have and the marginal portion of the heat exchange band that welds together of cooling tube, only there is heat exchange band self to conduct the heat of the rapid decay of coming by the thermal source place, thereby, the heat exchange workload that this part heat exchange band is shared has been reduced to minimum, becomes actual excess stock.So correctly the width dimensions of definite heat exchange band is saved unnecessary material down, not only can not reduce heat exchange property, also can save average about 7.88% valuable heat exchange carrying material.The heat exchange band materials majority of copper radiator is the T3 fine copper, and national standard allows to use the minimum material H90 of copper content, and its copper content is also 90%, and the heat exchange band materials of aluminium radiator are aluminium alloy foil material.So, no matter be copper radiator or aluminium radiator, the most expensive material in the materials of all parts on the radiator really of the material that manufacturing heat exchange band uses.Thereby recessed band core has higher consumption reduction to be worth.This fuse with the recessed cooling tube physical dimension of heat exchange band, also can make the stream condition of its air intake surface occur changing, this structure can reduce windage, improve wind speed, increase air quantity, thereby help the improvement of heat exchanger performance, if adopt the flat shape of " flat shape heat exchange band " again, the heat exchange effect of fuse can also further improve, the utility model patent that " flat shape heat exchange band " declared for the author, and application number is: 2006200849584.

Summary of the invention

The purpose of this utility model provide a kind of to the current car radiator that generally uses fuse and the fuse of the heat exchanger of other corrugated tube type structure carry out reasonable improved plan, promptly reduce the width of the heat exchange band in the radiator centre as requested, the situation of stretching out cooling tube outer, the outside by original heat exchange band changes into and falling in, thereby has reduced the consumption of precious materials.

The technical scheme that its technical problem that solves the utility model adopts is: the width dimensions of heat exchange band is littler than the width dimensions of original heat exchange band, less than the size between two outer rims of cooling tube in the same fuse thickness direction, the width of heat exchange band equals the distance between the point of contact of cooling tube both sides outer rim circular arc and straight line, and the shape of heat exchange band is connected with other parameter and with the soldering of cooling tube etc. and all remains unchanged.

The beneficial effects of the utility model are, under the prerequisite that the heat dispersion that guarantees fuse does not reduce, proposed the recessed band shape structure of the heat exchanger fuse of corrugated tube type structure, rationally dwindled the width dimensions of heat exchange band, therefore can save valuable nonferrous materials 7.88% approximately than average before improving.

Description of drawings

Fig. 1 is a section front view of the present utility model.

Fig. 2 is the pattern that amplify at the A place among Fig. 1.

Fig. 3 is the vertical view of Fig. 1.

Fig. 4 is the section front view of common radiator fuse.

Fig. 5 is the pattern that amplify at the B place among Fig. 4.

Fig. 6 is the vertical view of Fig. 4.

Fig. 7 is the section front view that adopts " the recessed band needle recuperator fuse " of " flat shape heat exchange band ".

Fig. 8 is the vertical view of Fig. 7.

Among the figure, 1. cooling tube, 2. heat exchange band.

The outstanding outer rim final position that has shown the heat exchange band of Fig. 2 promptly is the place, point of contact of the circular arc and the straight line of oblate cooling tube outer rim in the cross section.The situation that the outstanding flat shape of having expressed the heat exchange band of Fig. 8 is connected with cooling tube.

The specific embodiment

The utility model has shortened to the size that requires with the width of heat exchange band, other parameter of heat exchange band does not change, other part Coefficient adjacent with the heat exchange band do not change yet, among Fig. 1, the width dimensions on the both sides up and down of heat exchange band (2) is less than the size between two outer rims of cooling tube (1) in the thickness direction up and down of its same fuse, and the heat exchange band falls on both sides up and down.The width of heat exchange band (2) equals the distance between the point of contact of cooling tube (1) both sides outer rim circular arc and straight line.

Claims

1 one kinds of recessed band needle recuperator fuses, it is characterized in that: the width dimensions of heat exchange band is than existing little with the width dimensions of heat exchange band, less than the size between two outer rims of cooling tube in the same fuse thickness direction, the width of heat exchange band equals the distance between the point of contact of cooling tube both sides outer rim circular arc and straight line.