CN2672869Y

CN2672869Y - Heat radiator

Info

Publication number: CN2672869Y
Application number: CN 03274502
Authority: CN
Inventors: 李学坤; 陈俊吉; 吴宜强
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2003-09-11
Filing date: 2003-09-11
Publication date: 2005-01-19
Anticipated expiration: 2013-09-11

Abstract

Disclosed is a heat radiator, composed of a base and a plurality of radiating fins which are uprightly arranged on the base. The upper surface of the base is provided with a plurality of grooves which communicate two sides of the base, and the grooves are in the form of wave. Every radiating fin is provided with a body, the lower end edge of the body is matched with the contour of the upper surface of the base, and the end edge is bent and is extended with a junction. The radiating fins are integrated by tightly glued on the upper surface of the base through the junctions.

Description

Radiator

[technical field]

The utility model is about a kind of radiator, the fin assembly type radiator that particularly a kind of radiating effect is good.

[background technology]

Along with the fast development of electronics and information industry, electronic component disposal abilities such as central processing unit are strengthened day by day, and the heat of generation all increases with it, and the radiator of its adapted is also in continuous improvement.The traditional heat-dissipating device of aluminium extruded moulding, because of the manufacture method of one extrusion molding can't reach higher radiating fin density and depth-width ratio, cause heat-sinking capability can't obtain breakthrough raising and consumptive material more, the application of day by day fading out.

For overcoming the problem of aluminium extruded moulding radiator on making, the dealer has proposed the manufacture method of another kind of radiator, with the radiating fin of a dull and stereotyped pedestal and some moulding in advance by soldering or utilize modes such as heat-conducting glue pressing to be bonded into one, because radiating fin separates manufacturing with pedestal, can be by sheet metal moulding in advance, so improved the density and the depth-width ratio of radiating fin, the consumptive material problem is also solved.After this there are many related application to propose, it all lays particular emphasis on the problems such as increase, the engaging between radiating fin and fixed form to area of dissipation, as No. the 491521st, Taiwan patent announcement and No. 506247 disclosed heat spreader structures, but the heat that this radiator base absorbed can not fully effectively conduct to radiating fin, though there is bigger area of dissipation to be not in full use.Because pedestal largely depends on its contact area and interface conductive coefficient to the pyroconductivity of radiating fin, but limit at material, conductive coefficient basic fixed under the situation that manufacture method limits, therefore increasing contact area promptly becomes one and considers the aspect, traditional heat-dissipating device base-plates surface is the plane, the contact area of pedestal and radiating fin is also limit this area of plane, no matter radiating fin partly has how heat-sinking capability, but also can only absorb the heat that the pedestal conduction is come by this interface, therefore as not overcoming this bottleneck, then in the lifting of radiator heat-dissipation performance, be difficult to obtain good effect.So this structure still remains further to be improved.

[summary of the invention]

The fin assembly type radiator that provides a kind of radiating efficiency good is provided the purpose of this utility model.

The purpose of this utility model is achieved through the following technical solutions:

Radiator of the present utility model comprises a pedestal and some radiating fins.The said base upper surface has several grooves, above-mentioned some radiating fins are to stand upright on pedestal upper surface, each radiating fin one ora terminalis has the shape with pedestal upper surface profile phase coupling, and above-mentioned ora terminalis bending extends to form the junction surface, and this junction surface closely is attached at pedestal upper surface.

The utility model is compared with prior art has following advantage: because radiator base is provided with several grooves, and radiating fin is provided with the junction surface that is complementary with the pedestal upper surface shape, by the junction surface pedestal upper surface that closely is sticked, change the situation that radiating fin contacts with base plane in the traditional heat-dissipating device, the contact area of radiating fin and pedestal is obviously increased, strengthened the heat conduction of pedestal to radiating fin, make heat that pedestal absorbed in time to be delivered to radiating fin and distribute, so the heat-sinking capability of radiator is improved.

With reference to the accompanying drawings, the utility model will be further described in conjunction with the embodiments.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of the utility model radiator.

Fig. 2 is the constitutional diagram of the utility model radiator.

Fig. 3 is the front view of the utility model radiator.

[embodiment]

Please consult Fig. 1 to Fig. 3 simultaneously, the utility model radiator comprises a pedestal 10 and the some radiating fins 20 that stand on the pedestal 10, these pedestal 10 lower surface applying electronic components (figure does not show) surface, absorb the heat that electronic component produced and conduct to above-mentioned radiating fin 20, and then heat is distributed.

It is the groove 12 of inverted ladder type that said base 10 upper surfaces are provided with several sections that are communicated with the pedestal both sides, thereby makes pedestal 10 upper surface profiles be trapezoidal wavy.Above-mentioned radiating fin 20 is machine-shaping in advance, and each radiating fin 20 has a

body

22, and 22 times ora terminalis of this body and pedestal 10 upper surface contour shapes are complementary, and also are trapezoidal wavy, and 22 times ora terminalis bendings of body are extended with junction surface 24.Wherein junction surface 24 ora terminalis of back one radiating fin 20 are replaced last radiating fin 20 bodies 22 and are made 20 of adjacent radiating fins keep certain intervals, these radiating fin 20 front and back stacked arrangement are combined, thus the composition surface 26 that its all radiating fin junction surfaces 24 formation one and pedestal 10 surfaces are complementary.This composition surface 26 utilizes connected modes such as soldering or heat-conducting glue pressing pedestal 10 upper surfaces that closely are sticked, so all of each radiating fin 20 fit in pedestal 10 upper surfaces in ora terminalis junction surface 24 down fully.

Understandably, groove 12 sections of said base 10 upper surfaces can be different shapes such as semicircle, rectangle, triangle, and the following ora terminalis of above-mentioned some radiating fins 20 also is the different shape that is complementary with pedestal 10 upper surfaces.

Be not difficult to find out that more than the utility model radiator base 10 contacts area and compares previous flat base and increase greatly with 20 of radiating fins, the heat that makes pedestal 10 be absorbed transmits to radiating fin 20 in large quantities.

Claims

1. radiator, comprise a pedestal and some radiating fins, these radiating fins stand upright on pedestal upper surface, it is characterized in that: described pedestal upper surface has several grooves, each radiating fin one ora terminalis has the shape with pedestal upper surface profile phase coupling, above-mentioned ora terminalis bending extends to form the junction surface, and this junction surface closely is attached at pedestal upper surface.

2. radiator as claimed in claim 1 is characterized in that: the said base upper surface is trapezoidal wavy.

3. radiator as claimed in claim 1 is characterized in that: the junction surface ora terminalis of above-mentioned each radiating fin is replaced last radiating fin.

4. radiator as claimed in claim 3 is characterized in that: above-mentioned some junction surfaces are combined to form a composition surface that is complementary with pedestal upper surface.