CN2465325Y

CN2465325Y - Fin structure for heat sink

Info

Publication number: CN2465325Y
Application number: CN 01200874
Authority: CN
Inventors: 魏文珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-19
Filing date: 2001-02-19
Publication date: 2001-12-12
Anticipated expiration: 2011-02-19

Abstract

The utility model relates to a fin structure of a radiator. The utility model is characterized in that radiating fins are divided into a plurality of strip shapes, the both sides of the radiating fins are respectively and upwardly pressed and bent to form radiating fin groups which are opposite two by two, the unfolded part of the central bottom of the radiating fins is provided with heat conducting plates, and the radiating fins are divided into two inner rows and two outer rows and arranged at intervals to form the radiator. The utility model can greatly increase the radiating surface area and make gas stream smooth so as to enhance the radiating efficiency.

Description

The radiator fins structure

The utility model relates to a kind of radiator fins structure.

For settlement computer main frame inner member problems of excessive heat.Generally all on the electronic heating element, as: CPU, 1C element, power crystal, power supply unit ... add fin, make electronic component produce full high temperature, but the fin of mat is led heat energy and shed.And the structure of general fin, as shown in Figure 1, be fin 1 and base plate 2 is one-body molded with aluminium extruded type processing, because of being subject to pressing mold and extrusion technique, its fin 1 is comparatively generous usually, makes that obstruct air-flow face is bigger, heat-transfer rate is slower, and fin quantity is few, so area of dissipation is also little, and its radiating effect is real to be limited.Therefore, industry is developed another kind of fin as shown in Figure 2 then, is that most thermal columns 4 are set on pedestal 3, and the high temperature that is produced when making the electronic component running can be led heat energy shedding via thermal column 4.Though this kind fin is existing to be many area of dissipation and heat-dissipating spaces than the former, radiating effect is also preferable, needs earlier thermal column 4 to be made long bulk when so it is made, and again its rolling is formed equidistant thermal column 4, processing time consuming not only, also cause the waste of material, and the bar rib of its cylinder is still more abundant, so accumulation of heat is big, influence heat-transfer rate, therefore and the disappearance of the aforementioned fin of improvement not yet in effect for requiring fast or the long-time electronic heating element that uses, radiating effect is still undesirable.

In view of the shortcoming of above-mentioned known fin, this creator is that this is studied in specialty and experience are concentrated, makes every effort to be improved innovation, creates a kind of radiator fins structure finally.Not only can be made into the radiating fin of a greater number, the surface area that the radiating fin of same area is contacted with air is many with fin more now, effectively increase area of dissipation, and can now save material with the person, and then reduce cost, and can obtain maximum heat sinking benefit, quicken the heat radiation function of thermal source, give full play to heat sink functionality, and can certain settlement computer element over-temperature problem.

Main purpose of the present utility model, being to provide a kind of significantly increases cooling surface area, and unimpeded air-flow, can promote the radiator fins structure of heat sinking benefit.

Another purpose of the present utility model, being to provide a kind of does not have waste material fully, and the radiator fins structure that can save material, reduce work hours and reduce cost.

Above-mentioned purpose of the present utility model is realized by following technical scheme.

A kind of radiator fins structure, it is characterized in that: mainly be fin to be cut apart be a plurality of strips, and from both sides respectively upwards backfin form the U type radiating fin group of opposed arrangement in twos, make progress from the bottom position of backfin of this radiating fin group is different and divide and be uneven outer-finned and interior fin, between outer-finned and interior fin and be spaced setting, and its center bottom pinching forms heat-conducting plate.

Advantage of the present utility model is:

1, mat is cut apart fin and its backfin is formed a plurality of radiating fin groups of opposed arrangement, significantly increasing cooling surface area, and unimpeded air-flow, can promote heat sinking benefit.

2, mat forms a plurality of radiating fins with the direct punching press of fin, does not have waste material fully, and can save material, reduces work hours and reduce cost.

Relevant the utility model is for reaching above-mentioned purpose, and technological means that is adopted and specific structural features are lifted a preferable possible embodiments now, and by following accompanying drawing, and the detailed description of conjunction with figs. and further disclose and understand:

Description of drawings:

Fig. 1 is a stereogram of now knowing fin.

Fig. 2 is a stereogram of now knowing another fin.

Fig. 3 is a stereo appearance figure of the present utility model.

Fig. 4 is a vertical view of the present utility model.

Fig. 5 is a plane outspread drawing of the present utility model.

Fig. 6 is a three-dimensional combination schematic diagram of the present utility model.

At first, see also Fig. 3 and shown in Figure 4, be three-dimensional appearance of the present utility model and vertical view, mainly be: a fin is cut apart be a plurality of strips, to make it form slim lengthy motion picture, and upwards backfin and form the U-shaped radiating fin group 10 who arranges relatively in twos respectively from both sides, and can be several times as much as the quantity of known fin, its not the central bottom of backfin then form the alternate heat-conducting plate of a width 13, wherein, this radiating fin group 10 divides because of the position of the backfin that makes progress from the bottom is different to be and effluxes in uneven, form outer-finned 11 in the two opposition fin pitch that efflux from broad, the close together of internal layer two fins is reached and is interior fin 12, and outer-finned 11 is with interior fin t2 and be spaced setting, makes radiating fin group 10 both sides all can form leg-of-mutton turbulent region 14.

Inferior Fig. 5 plane outspread drawing of the present utility model that sees also, the utility model is when punching press, only need along line of cut position 101 cuttings of presetting and simultaneously along the 102 upwards backfins of backfin line, can form radiating fin group 10 as shown in Figure 3, the waste of manufactured materials is not arranged fully, and a punching press can be finished the utility model, does not need to process separately operation, can save man-hour, material and reducing cost.

Please consult Fig. 6 three-dimensional combination schematic diagram of the present utility model again, when combination, radiating fin group 10 need only be got final product with gluing the putting on heat absorption base plate 20 of heat conduction, also can on heat-conducting plate 12, preset rivet hole 15, utilize the riveted mode to fix, make up quite simple and easy.Because radiating fin group 10 fin punching press forms height and thin lengthy motion picture type, one can make its heat-transfer rate very fast, and two come its number of fins multiplication, and its face face all can be contacted with air, and significantly increase its area of dissipation, strengthen the ability of whole heat extraction; Outer-finned 11 is designed to be spaced with interior fin 12 again, make and form leg-of-mutton turbulent region 14 between outer-finned 11 and the interior fin 12, can be out-of-date in air flow stream, owing to the difference of inside and outside row's angle and throughput produces eddy current, make the surface of each fin can touch air-flow equably, compositely close the gap that each radiating fin forms to each other, can be so that its air current flow speed improves relatively, and the whole heat radiation function of enhancement, the heat energy that therefore heat absorption base plate 20 can be conducted to heat-conducting plate 13 continues also to distribute rapidly.

More than diagram and element title are decide for the convenient the utility model of describing, and are not in order to limiting the claim of this case, and all foundations are of the present utility model founds spirit and be the replacement person of migrating of equivalence element, must be in the technical solution of the utility model.

To sum up discuss, the utility model is a reasonable perfect design really, not only can significantly increase the overall area of dissipation of fin, possess good practicality, and in the design of structure space kenel, belong to unprecedented innovation, have novelty, can obviously promote radiating rate, and promote heat radiation function really, also belong to the height utility model that breaks through the prior art stereotype, tool progressive.

Claims

1, a kind of radiator fins structure, it is characterized in that: mainly be fin to be cut apart be a plurality of strips, and from both sides respectively upwards backfin form the U type radiating fin group of opposed arrangement in twos, make progress from the bottom position of backfin of this radiating fin group is different and divide and be uneven outer-finned and interior fin, between outer-finned and interior fin and be spaced setting, and its center bottom pinching forms heat-conducting plate.