CN2450707Y

CN2450707Y - Heat sink

Info

Publication number: CN2450707Y
Application number: CN 00239416
Authority: CN
Inventors: 陈允隆
Original assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Current assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Priority date: 2000-09-08
Filing date: 2000-09-08
Publication date: 2001-09-26
Anticipated expiration: 2010-09-08

Abstract

The utility model relates to a heat dissipating device. The utility model comprises a base and a blade body, wherein, the top surface of the base is provided with four bearing ribs which are arranged in parallel; the inner side of two outside bearing ribs is respectively provided with a groove; a step surface is respectively arranged on two sides perpendicular to the extending direction of the bearing ribs. The bottom surface of the base is attached with a chip; the blade body is in one continuous structure of side wall-upper wall-side wall-bottom wall formed by that a heat conducting metal plate is bent into a wavy shape after the heat conducting metal plate is penetrated with a series of through grooves and through holes, wherein, the upper wall and the bottom wall are connected by the side walls, and an outer groove and an inner groove are formed between two adjacent side walls. After the blade body is bent into the wavy shape, the through holes can be riveted with the bearing ribs on the base.

Description

Heat abstractor

The utility model mainly is about a kind of heat abstractor, particularly about a kind of separate type design, heat abstractor that radiating effect is good of adopting.

Growing along with information industry, electronic product are obtained apparent progress, especially computer realm, and belong to the with the fastest developing speed of central processing unit in computer realm.

As everyone knows, central processing unit is the maincenter of computer processing data and message, is high heat generating component in the computing machine, and can the heat that central processing unit produces in time discharge, and is directly connected to the speed and the accuracy of computer processing data.The speed of existing central processing unit deal with data is more and more, and heat dissipation problem has become problem extremely to be solved.

Existing radiating mode is a lot, heat abstractor 2 as shown in Figure 1, and its bottom surface is to be fitted in the heat that on the chip (figure does not show) chip is produced in time to discharge.Owing to this heat abstractor 2 is to adopt the tradition mode of extruding to get, weight is big, and under restrictions such as manufacturing technology and mould strength, fin density or integral heat sink surface area will be restricted, and be difficult to meet more and more higher heat radiation requirement.

In addition, combined radiating device 4 is as shown in Figure 2 arranged also, form by pedestal 6 and fin 8.Because the fin 8 of this heat abstractor 4 is to be plugged on the pedestal 6, so on fin density and integral heat sink surface area, have bigger design space.Yet, the fin 8 of this heat abstractor 4 be with the direct inlay card of plant mode on pedestal 6, its processing procedure complexity, integrally-built steadiness are obviously not enough, and also are easy to generate the space and influence the radiating effect of heat abstractor 4 greatly at the joint of fin 8 and pedestal 6.

It is a kind of easy to manufacture that the purpose of this utility model is to provide, the heat abstractor that one-piece construction is firm and radiating effect is good.

The purpose of this utility model is achieved through the following technical solutions: the utility model heat abstractor is to be fitted in to discharge the heat that chip produces on the chip, mainly is made up of pedestal and blade body.This pedestal is that the mode with extrusion molding makes, and its end face is provided with the fin that four roads are arranged in parallel, and the inner side edge of two fins is respectively established a groove in the outside, and is respectively equipped with a step surface on the dual-side perpendicular to the fin bearing of trend.The bottom surface of this pedestal is to fit with chip.This blade body be by a thermal conductive metal plate go out a series of wear groove and through hole after, be bent into wavy again and sidewall-roof-sidewall-diapire continuous structure that form, be to link to each other between this roof and diapire wherein, and form water jacket and groove between adjacent two side with sidewall.When blade body be bent into wavy after, this through hole can with the fin of pedestal riveted mutually, can hold fastener and wear groove.

Owing to adopted technique scheme, the pedestal of the utility model heat abstractor is to separate making with blade body, and then the two is combined with the mode of riveted, wherein this blade body is to be shaped by metallic plate punching, can do to adjust arbitrarily with the need to improve cooling surface area apart from density between its adjacent two side, avoided prior art to extrude in the mode because restrictions such as manufacturing technology and mould strengths, the integral heat sink surface area of heat abstractor is restricted, therefore, this heat abstractor has advantages such as easy to manufacture, that one-piece construction is firm.

In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.

Fig. 1 is the stereographic map of known heat abstractor.

Fig. 2 is the stereographic map of another known heat abstractor.

Fig. 3 is the three-dimensional exploded view of the utility model heat abstractor.

Fig. 4 is the three-dimensional combination figure of the utility model heat abstractor.

Fig. 5 is the sectional view of the utility model heat abstractor.

Fig. 6 is the three-dimensional combination figure of the utility model heat abstractor and its associated components.

Please refer to Fig. 3, the utility model heat abstractor mainly comprises a pedestal 10 and a blade body 20.This pedestal 10 is that the mode with extrusion molding makes, and its end face 11 is provided with the fin 13 that four roads are arranged in parallel, and the inner side edge of two fins 13 is respectively established a groove 14 in the outside, and is respectively equipped with a step surface 15 on the dual-side perpendicular to fin 13 bearing of trends.The bottom surface 12 of pedestal 10 is to fit tightly mutually with chip (figure does not show).

This blade body 20 is after being gone out the through hole 21 of a series of trams and wear groove 22 by structural design by a thermal conductive metal plate, be bent into wavy again and sidewall 23-roof 24-sidewall 23-diapire 25 continuous structures that form, wherein this roof 24 is to link to each other with sidewall 23 with 25 of diapires, and 23 of adjacent two sides form water jacket 26 and inside groove 27.When this blade body 20 be bent into wavy after, these through holes 21 and to wear groove 22 be to be positioned on diapire 25 and the sidewall 23, and this through hole 21 can with the fin 13 of pedestal 10 riveted mutually, and fastener 60 can be contained in to wear in the groove 22 and (please refer to Fig. 6).

Please in the lump with reference to the 4th, 5 and 6 figure, during assembling, elder generation aims at the through hole 21 of blade body 20 on the fin 13 that is contained in pedestal 10 and makes both riveteds, thereby blade body 20 is fixed on the pedestal 10, fastener 60 is packed into wear in the groove 22 then.Then, reverse U shape framework 50 cover caps that are equiped with fan 30 are lived blade body 20, utilize the positioning action of step surface 15 and make the screw 51 on the framework 50 aim at the groove 14 on the pedestals 10 and lock screw 40, at this moment the square groove 52 on the framework 50 be with blade body 20 on to wear groove 22 corresponding.At last, utilize the corresponding connector of fastener 60 buckles (figure do not show) and pedestal 10 bottom surfaces 12 of heat abstractor are fitted tightly the chip end face promptly finish assembling.

Claims

1. heat abstractor, be to be fitted in the heat of assisting on the chip chip is produced to discharge, mainly comprise a pedestal and a blade body, it is characterized in that: this base bottom surface is to be fitted on the chip, end face is provided with some fins that are arranged in parallel, and the inner side edge of two fins is respectively established a groove in the outside; This blade body is that one is bent into wavy back and sidewall-roof-sidewall-diapire continuous structure of forming, and is formed with on diapire and sidewall and the fin of the pedestal through hole of riveted mutually.

2. heat abstractor as claimed in claim 1 is characterized in that: this pedestal is that the mode by extrusion molding makes.

3. heat abstractor as claimed in claim 1 is characterized in that: this blade body after being gone out the through hole of a series of trams and wear groove by structural design by a thermal conductive metal plate, is bent into wavy again.