CN101827512B

CN101827512B - Heat radiating method of high-power electronic device and rolling type fin inserting heat radiator

Info

Publication number: CN101827512B
Application number: CN2010101477202A
Authority: CN
Inventors: 杜斌; 杜小荣
Original assignee: ZHENJIANG CITY DONGYA ELECTRON TADIATOR CO Ltd
Current assignee: ZHENJIANG CITY DONGYA ELECTRON TADIATOR CO Ltd
Priority date: 2010-04-15
Filing date: 2010-04-15
Publication date: 2012-11-14
Anticipated expiration: 2030-04-15
Also published as: CN101827512A

Abstract

The invention relates to a heat radiating method of a high-power electronic device, which carries out heat radiation on the high-power electronic device by adopting a fin inserting type heat radiator. One surface of a base plate of the fin inserting type heat radiator is milled to be flat and punched and is used for installing the high-power electronic device, and the other surface is provided with fin inserting slots and rolling slots at intervals; and heat radiating fins are inserted into the fin inserting slots and riveted and are further firmed by rolling the rolling slots through a rolling process. The rolling type fin inserting heat radiator suitable for the method comprises the base plate and a plurality of the heat radiating fins, wherein one surface of the base plate is provided with the fin inserting slots and the rolling slots which have numbers corresponding to that of the heat radiating fins and are mutually parallel; the plurality of mutually-parallel heat radiating fins are inserted into the fin inserting slots correspondingly; two walls of the rolling slots press the root parts of the heat radiating fins; and the other surface of the base plate is milled to be flat and is provided with an element installation hole. The invention solves the problem of heat radiation of the high-power electronic device by the method which is simple and easy to apply, is suitable for industrial production and can ensure the quality and the heat radiating effect of products.

Description

High-power electronic device heat dissipating method and rolling type fin inserting radiator

Technical field

The invention belongs to the radiator field, specifically is a kind of high-power electronic device heat dissipating method and rolling type fin inserting radiator.

Background technology

In the prior art, heat sink applications is extensive, especially the aluminium extruded type radiator.Because this type radiator is through die sinking design, will be squeezed into various gear piece type radiators, through natural air cooled or install fan additional and carry out air blast cooling, directly take away by the heat of heat radiation object.Along with the integrated development of electronic device, to heat radiation require increasingly highly, surface area is big, volume is the challenge to aluminium extracting mold for a short time.Because highly dense tooth die cost is higher, and the mould rapid wear, and big volume, high-power long-pending difficulty and the manufacturing cost that has then more increased extruder.No matter any mode all can be brought higher manufacturing cost.

Summary of the invention

In order to solve the problems referred to above that exist in the existing production technology, the present invention proposes a kind of new high-power electronic device heat dissipating method and rolling type fin inserting radiator, and concrete technical scheme is following:

A kind of high-power electronic device heat dissipating method adopts fin-inserted radiator that high-power electronic device is dispelled the heat; The flat punching of substrate one facing cut of said fin-inserted radiator; Be used to install said high-power electronic device, another side is interval with inserted slot and rolling groove, in inserted slot, assigns fin and riveted joint; And with rolling technology through rolling groove is carried out roll extrusion, and then fasten fin;

The concrete steps of rolling technology are following:

1) earlier on substrate, leaving a plurality of inserted slots and rolling groove simultaneously, two kinds of grooves are parallel to each other, and are provided with an inserted slot between two rolling grooves; Insert fin in the inserted slot and the riveted and fixed fin;

2) semi-finished product are put into roller press and carry out roll extrusion; The roll extrusion blade cutting edge of roller press is a V-type, firmly is pressed into the fin root after making rolling groove two walls through distortion in rolling, guarantees that fin closely contacts with substrate, in conjunction with firmly, reaches the heat transfer radiating effect, significantly reduces the thermal resistance of blade and base stage;

Said roller press also carries out pressure debugging to the substrate of different-thickness: to the thick corresponding pressure of substrate adjustment roller press of difference, make the fin withdrawal force >=20N/cm of finished product.

Be applicable to the rolling type fin inserting radiator of said method, comprise substrate and a plurality of fin; The one side of said substrate is provided with the inserted slot that be parallel to each other and the rolling groove corresponding with fin quantity; A plurality of fin that are parallel to each other insert in the corresponding inserted slot; Two wall pressures of rolling groove are lived the root of fin;

Another facing cut of said substrate is flat, and is provided with the components and parts installing hole;

Said fin is extrusion modling, and the root of fin is the heat-conducting block that connects substrate, and heat-conducting block top is radiator; The shape in the cross section of radiator is two continuous long oval holes, and they constitute arrives independently hole, air channel mutually; Be provided with heat carrier in the middle of the two long oval holes; The outer wall in said long oval hole is thinner than heat carrier, and like this, the air channel outer wall is thinner, is beneficial to ventilation and heat, and the heat carrier in the middle of the two oval holes is thicker relatively, helps bottom temp is conducted to dispelling the heat in the hole, air channel fast.

Said substrate is the flat board of standard 6063 materials, is guaranteeing under the radiating effect prerequisite processing of being more convenient for.

The present technique scheme has changed the thinking of prior art, has solved the high-power electronic device heat dissipation problem with a kind of more simple method, and the present technique scheme is suitable for commercial production, can guarantee the quality and the radiating effect of product.

Description of drawings

Fig. 1 is that the radiator of embodiment is looked sketch map;

Fig. 2 is the radiator schematic top plan view of embodiment;

Fig. 3 is the local enlarged diagram of the radiator of embodiment.

Embodiment

Below in conjunction with accompanying drawing and embodiment the present technique scheme is described further.

A kind of high-power electronic device heat dissipating method is to adopt fin-inserted radiator that high-power electronic device is dispelled the heat; The flat punching of substrate 1 one facing cuts of the fin-inserted radiator that this is routine; Be used to install said high-power electronic device, inferior inserted slot 3 and the rolling groove 4 of being provided with assigned fin 2 and riveted joint between another side in inserted slot 3; And with rolling technology through rolling groove 4 is carried out roll extrusion, and then fasten fin 2;

The concrete steps of rolling technology are following:

1) is parallel to each other with 4, two kinds of grooves of rolling groove on substrate 1, leaving a plurality of inserted slots 3 simultaneously earlier, and is provided with an inserted slot 3 between two rolling grooves 4; Insert fin 2 in the inserted slot 3 and riveted and fixed fin 2;

2) semi-finished product are put into roller press and carry out roll extrusion; The roll extrusion blade cutting edge of roller press is a V-type, firmly is pressed into fin 2 roots after making 4 liang of walls of rolling groove through distortion in rolling, guarantees that fin 21 closely contacts with substrate, in conjunction with firmly, reaches the heat transfer radiating effect, significantly reduces the thermal resistance of blade and substrate;

Said roller press also carries out pressure debugging to the substrate 1 of different-thickness: to the thick corresponding pressure of substrate 1 adjustment roller press of difference, make the fin 2 withdrawal forces >=20N/cm of finished product.

The rolling type fin inserting radiator that this is routine comprises substrate 1 and a plurality of fin 2; The one side of said substrate 1 is provided with the inserted slot that be parallel to each other corresponding with fin 2 quantity 3 and rolling groove 4; A plurality of fin that are parallel to each other 2 insert in the corresponding inserted slot 3; Two wall pressures of rolling groove 4 are lived the root of fin 2;

Another facing cut of said substrate 1 is flat, and is provided with the components and parts installing hole;

Said fin 2 is extrusion modlings, and the root of fin 2 is the heat-conducting blocks 5 that connect substrate, and heat-conducting block 5 tops are radiators; The shape in the cross section of radiator is two continuous long oval holes 6, and they constitute separate hole, air channel; Be provided with heat carrier 7 in the middle of the two long oval holes 6; The outer wall in said long oval hole 6 is thinner 7 than heat carrier, and like this, the air channel outer wall is thinner, is beneficial to ventilation and heat, and the heat carrier in the middle of the two oval holes is thicker relatively, help with bottom temp fast conduction dispel the heat to the hole, air channel.

Claims

1. a rolling type fin inserting radiator comprises substrate and a plurality of fin; The one side of said base plate is provided with the inserted slot that be parallel to each other and the rolling groove corresponding with fin quantity; A plurality of fin that are parallel to each other insert in the corresponding inserted slot; Two wall pressures of rolling groove are lived the root of fin; Another facing cut of said substrate is flat, and is provided with the components and parts installing hole; Said fin is extrusion modling, and the root of fin is the heat-conducting block that connects substrate, and heat-conducting block top is radiator;

The shape that it is characterized in that the cross section of radiator is two continuous long oval holes, and they constitute separate hole, air channel; Be provided with heat carrier in the middle of the two long oval holes; The outer wall in said long oval hole is thinner than heat carrier.

2. rolling type fin inserting radiator according to claim 1 is characterized in that said substrate is the flat board of standard 6063 materials.

3. rolling type fin inserting radiator according to claim 1 is characterized in that fin withdrawal force >=20N/cm.

4. rolling type fin inserting radiator according to claim 1 is characterized in that it is riveted and fixed that fin inserts in the inserted slot.