JPH11121661A - Heat sink and heat sing assembling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat sink of high performance, low cost and light weight, without being limitated by a conventional heat sink manufacturing technology. SOLUTION: Each heat sink part chip which comprises a base part 2 for equipping a heat-generating element thereon and of a fin part 1 for making heat radiation from the base surface and of which convex part 3 formed at the base part 2 is inserted one after another into a concave part 4 formed at another corresponding base part of the heat sink part chip. After that, by successively clamping at the inserted portions through pressure, this device is constituted of wide base areas for equipping a heat-generating elements thereon and of a number of the radiating fins proportional to one of the base areas.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat sink for cooling electronic components of a heating element such as a CPU and transistors.

[0002]

2. Description of the Related Art Conventionally, a heat sink for cooling a CPU has been manufactured by extrusion, forging, die casting, and the like, and the width and height of the fins are limited due to limitations in manufacturing technology, and it is difficult to manufacture thin and high fins. matched.

[0003]

It is difficult to manufacture a heat sink for cooling a CPU having both thin and long fins having a high cooling effect in terms of manufacturing technology. Therefore, there is a method of separately manufacturing and joining a fin and a base. In this case, the thermal resistance increased at the joint, and the performance of the heat sink deteriorated.

[0004] The present invention has been made in view of such problems of the conventional technology, and has as its object to provide a high-performance and low-cost device without being restricted by the conventional manufacturing technology. To provide a lightweight heat sink.

[0005]

[Means for Solving the Problems]

According to the present invention, the base portion (2) includes a base portion (2) to which a heating element is attached and a heat sink portion which constitutes a fin portion (1) for radiating heat from the base surface. After the protrusions (3) and the corresponding recesses (4) formed in the base portion of the other heat sink part corresponding to the protrusions (3) are successively inserted, the inserted portions are successively caulked with pressure to generate the heating element. This is a method of assembling a heat sink for forming a wide base surface on which the radiating fins are mounted and a number of heat dissipating fins proportional to the wide base surface.

According to the present invention, the base portion (2) comprises a base portion (2) on which a heating element is mounted and a fin portion (1) for radiating heat from the base surface. After the protrusions (3) and the corresponding recesses (4) formed in the base portion of the other heat sink part corresponding to the protrusions (3) are successively inserted, the inserted portions are successively caulked with pressure to generate the heating element. This is a heat sink that constitutes a wide base surface on which the radiating fins are mounted and a number of radiating fins in proportion to the wide base surface.

[0008]

[Function] This heat sink has C attached to the base surface.
The heat from the heat generating elements such as PUs and transistors is transferred to the fins, and the wind from the fan is applied to the fins to transfer the heat from the fins to the air, thereby preventing the heat generating elements from being destroyed by the heat.

[0009]

An embodiment will be described with reference to the drawings. FIG. 1 is a partially inserted view showing a heat sink according to the present invention. (1) is a fin portion for dissipating heat from the heating element, (2) is a base surface to which the heating element is attached, and (3) is a projection for coupling when the other heat sink portion (1) is inserted. (4) is a corresponding concave portion.

FIG. 2 is a view before and after caulking when the respective concave and convex portions formed on the base portion of the heat sink portion piece in FIG. 1 are successively inserted and the inserted portion is caulked by pressure. .

FIG. 3 is a perspective view of the completed heat sink and a view in which a heating element is attached to the heat sink.

[0012]

As described above, a high-performance, low-cost heat sink can be provided without being restricted by the conventional manufacturing techniques.

[Brief description of the drawings]

FIG. 1 is an insertion view of a heat sink part piece.

FIGS. 2A and 2B are before (a) and after (b) a caulking of a heat sink part;

FIG. 3 is a perspective view of the present heat sink (c), and a view of mounting the present heat sink and a heating element (d).

[Explanation of symbols]

 (FIG. 1) 1, fin portion 2, base portion 3, convex ridge portion 4, concave portion (FIG. 2) 1, fin portion 2, base portion 3, convex ridge portion 4, concave portion (FIG. 3) 1, fin portion 2. Base part

Claims (2)

[Claims] 1. A base part (2) for mounting a heating element.
And a fin portion for dissipating heat from the base surface (1)
Of the heat sink portions constituting the base portion (2) and the corresponding concave portion (4) formed on the base portion of the other heat sink portion corresponding to the convex portion (3). A method of assembling a heat sink, which forms a wide base surface on which a heating element is to be mounted and a proportional number of heat dissipating fins by successively caulking the insertion locations with pressure after insertion. 2. A base part for mounting a heating element.
And a fin portion for dissipating heat from the base surface (1)
The heat sink part pieces that constitute the above are successively formed on the convex part (3) formed on the base part (2) and the corresponding concave part (4) formed on the base part of the other heat sink part piece. A heat sink that forms a wide base surface on which a heating element is mounted and a proportional number of heat dissipating fins by successively caulking the insertion points with pressure after insertion.