CN2370465Y

CN2370465Y - Radiator

Info

Publication number: CN2370465Y
Application number: CN 99235649
Authority: CN
Inventors: 李学坤
Original assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 1999-03-25
Filing date: 1999-03-25
Publication date: 2000-03-22
Anticipated expiration: 2009-03-25

Abstract

The utility model relates to a radiator, which comprises a base and a bending type fin. The base is made of aluminum materials by a device through extrusion moulding under the specific temperature, the top of the base is alternately provided with a plurality of rows of cylinders at equal intervals to form a plurality of caulking grooves, and both opposite side faces of the cylinders slightly form mark shapes. The fin is made of a metal sheet which is firstly and properly punched and then is repeatedly and vertically bent to form a specific number of bottoms, groove paths between the bottoms and cards obliquely extending outwards from the side edges of the bottoms, the cards are clamped on the marks of the side faces of the cylinders, and the fin is combined on the base so as to prevent from pulling out of the base.

Description

Heat abstractor

The utility model is about a kind of heat abstractor, particularly a kind of heat abstractor that combines by particular form by a pedestal and a folding type fin, it has better heat radiating effect, and easy to manufacture, structure is firm.

Heat abstractor is to use for computer CPU (central processing unit) or electronic element radiating, existing heat abstractor is in order to improve radiating effect, the integral heat sink surface area that adopts mode as shown in Figure 3 to increase heat abstractor is arranged, this heat abstractor is to make through the twice job sequence, its earlier by tool under specified temp with aluminium extrusion molding (extrusion), make the groove between adjacent two fins have degree of depth h1, afterwards, further with profile groove (sawing) program to groove processing, make its degree of depth arrive h2, and increase the fin cooling surface area, still, this mode of deepening gash depth via the profile groove program, the fin surface very easily produces burr, and it not only increases flow resistance, and back segment processing difficult treatment, take time and effort, raise the cost.Industry also has the heat abstractor design of other type, as shown in Figure 4, this heat abstractor be by a metal sheet be bent into repeatedly wavy after, utilize glue directly to be bonded on CPU or the electronic component, still, the bottom surface of this heat abstractor is difficult to guarantee smooth, coplane degree is not good, and not only assembling is not firm, and very easily produces the gap in the zone that contacts with CPU or electronic component, cause to have air, and influence radiating effect greatly.So the utmost point needs a kind of heat abstractor simple, easy to manufacture, that structure is firm and radiating effect is good of processing, improve many shortcomings of existing structure.

The purpose of this utility model provides the good heat abstractor of a kind of radiating effect, and it is combined by particular form by a pedestal and a folding type fin, so structure is firm, easy to manufacture.

The purpose of this utility model is achieved through the following technical solutions, this heat abstractor is made up of the folding type fin that a pedestal and is installed on the pedestal, wherein pedestal is to be got by the tool extrusion molding at a certain temperature by aluminium, be equidistantly spaced multiple row cylinder and form the multiple tracks caulking groove of its top, the relative two sides of cylinder slightly are textured, and fin is first after suitable punching press by a metal sheet, obtain through vertically bending repeatedly again, and form conduit between the bottom, bottom of given number, and the card that tilts to extend outwardly from the bottom lateral margin.Borrow this card to be equipped on the lines of base posts body side surface, fin is combined on the pedestal, prevent that fin from deviating from pedestal, and reach the firm effect of structure, and easy to manufacture.Fin of the present utility model obtains through vertical bending, and its corner is substantially right-angle structure, and therefore the bottom is quite smooth, and coplane degree is good between each bottom, thus can closely contact with pedestal, and reach the radiating effect favorable effects.

By technique scheme, the utility model is good heat dissipation effect not only, and structure is firm, and is easy to manufacture.

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

Fig. 2 is the combination of side view of Fig. 1.

Fig. 3 is the stereographic map of existing heat abstractor.

Fig. 4 is the stereographic map of another kind of existing heat abstractor.

See also Fig. 1 and Fig. 2, the utility model heat abstractor mainly is made up of the fin 20 that a pedestal 10 and is installed on the pedestal 10, wherein this pedestal 10 gets by the tool extrusion molding under specified temp for aluminium, be equidistantly spaced multiple row cylinder 14 and form multiple tracks caulking groove 11 of its top, the relative two sides 12 of cylinder 14 slightly are textured, caulking groove 11 bottom surfaces 13 then are the surface of contact of smooth planar, in order to be abutted against with aforementioned fin 20.Fin 20 is first after suitable punching press by a metal sheet, obtain through vertically bending repeatedly again, and 22 conduits 23 in bottom 22, bottom of formation given number, and the card 21 that 22 lateral margins extend towards outer incline from the bottom, these card 21 bases are connected with the lateral margin of bottom 22, and the width of this bottom 22 and conduit 23 is to cooperate with the caulking groove 11 and the cylinder 14 of pedestal 10 respectively.During combination, fin 20 bottoms 22 press down the caulking groove 11 that enters pedestal 10, and are close to the bottom surface 13 of caulking groove 11, borrow the blocking effect of 12 of card 21 and cylinder 14 textured sides, can prevent that fin 20 from deviating from pedestal 10, and reach the firm effect of structure.

Moreover because fin 20 is to obtain through vertical bending repeatedly, its corner is to be right-angle structure substantially, and therefore bottom 22 is quite smooth, and each 22 coplane degree in bottom is also fine, thus can with caulking groove 11 bottom surfaces 13 maintenance excellent contact states.

In addition, for increasing the integral heat sink effect, also can add that heat passes the medium (figure does not show) that fat (thermal grease), heat biography adhesive tape (thermal tape) or heat pass wax enhancement radiating effects such as (thermal wax) in caulking groove 11 bottom surfaces 13 of pedestal 10 and 22 of the bottoms of fin 20.

Claims

1. a heat abstractor comprises a pedestal and a folding type fin, it is characterized in that: this pedestal is that aluminium gets by the tool extrusion molding under specified temp, be equidistantly spaced multiple row cylinder and form the multiple tracks caulking groove of its top; This fin is first after suitable punching press by a metal sheet, obtain through vertical bending repeatedly again, and form conduit between the bottom, bottom of given number, and the card that tilts to extend outwardly from the bottom lateral margin, this card is to be equipped in column side face, can prevent that fin from deviating from pedestal.

2. heat abstractor as claimed in claim 1 is characterized in that: column side face is the textured surface because of extruding, and can block mutually with the card of fin, further firm fin.

3. heat abstractor as claimed in claim 2 is characterized in that: be coated with heat-conducting medium between pedestal caulking groove and fin bottom.