JPS58193096A - Manufacture of radiator - Google Patents

Abstract

PURPOSE:To form projecting strips at extremely narrow intervals, and to set the fitting intervals (pitches) of fins to small value, also by using an extrusion die material of a sectional shape, in which a large number of the projecting strips are protruded and formed to one surface or both surfaces, as a substrate. CONSTITUTION:A large number of the projecting strips 2, 2' are each protruded and formed to both surfaces of the substrate 1 consisting of the extrusion die material in parallel and at close intervals. These projecting strips 2, 2' are grooved by a metal saw in the direction of the thickness of the substrate from their top surfaces to work grooves 3, but the depth of the grooves 3 can be formed in size, which is larger than the height of the projecting strips 2, 2' and intrudes partially to the thickness of the substrate as shown in the figure. The width of the grooves 3 may be equal to the thickness of the fins to be fitted or be made slightly larger than that. One ends of the plate-shaped fins 4 are fitted into said grooves 3, and the pawl-shaped projecting strips 2 or 2' are crushed so as to hold the fins 4 from the left and the right, thus staking and combining the fins 4 to the substrate 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a heat sink, and more particularly to an improvement in a method for fitting fins into grooves provided on a substrate and caulking the fins to the substrate.

Conventionally, this cypress radiator has been made by placing fins on the board at very narrow intervals, for example, with a fin spacing of about 2 cm, and thin fins of about 0.3 cm on the board, with 7 grooves in the grooves, and a chevron-shaped tip and fins. There is a known method for caulking the fins by crushing the convex portions of the board with a spacer plate having corresponding long grooves (% Kosho 36-9565). A method has also been considered in which the two are crimped together.

Installing the fins at narrow intervals using the conventional method provides a heat sink with high heat dissipation efficiency.However, due to the thickness of the board, the area of contact between the fins and the caulked part of the board There is a problem in that the fin length is restricted and the fin length cannot be increased. In the latter method, a grooved substrate is extruded,
Since the fins can be caulked into this groove, there is an advantage that it is possible to avoid forming the groove with a metal ring.
This method has the disadvantage that the fin mounting intervals cannot be set to extremely narrow intervals as in the former method.

The present invention provides a modern method for manufacturing a heat sink that combines the advantages of these methods.The present invention provides a modern method for manufacturing a heat sink that combines the advantages of these methods. Grooves for fin fitting are cut from the top surface, plate-shaped fins are fitted into these grooves, and the above protrusions are crushed from both sides of the fin to securely connect the fin to the substrate to achieve the desired purpose. It is a collection of.

According to the present invention, since the extruded material has 11 raised ridges and is in the shape of a standard plate, these ridges can be formed at extremely narrow intervals, and can be later attached to grooves cut here. The mounting interval (pitch) of the fins can also be set small. In addition, since the cutting of the groove is performed on the raised protrusion, the depth of the groove can be made sufficiently large according to the thickness of the protrusion without being restricted by the thickness of the substrate, and the length of the fin to be cast can be adjusted. In addition, making it sufficiently large becomes iJ Noh.

In addition, there is a claw-like protuberance on the caulking part between the fin and the board, which is crimped so that the fin is pinched and crushed from both sides of the fC fray, so not only does the area of contact between the fin and the board at the caulking part become large. '&j A reliable caulking connection with a high degree of layering can be obtained.

The present invention will be explained below with reference to an embodiment shown in Figure rfJ.O Example@1As shown in Figure, a substrate (1) made of an extruded material has a large number of protrusions (2X2') on both sides of the substrate to apply parallel force and force. It is formed into closely spaced ridges.

Next, as shown in Figure 2, these protrusions (2) (2') are machined with a metal saw from the top surface in the thickness direction of the board (convex groove 0), but #1 (3) As shown in the figure, the size can be larger than the height of the protrusions (2) (2') and partially cut into the thickness of the substrate. 14% (
The width of 3) should be the same as the thickness of the fin to which the castle is attached, or should be set to the ρ scale.

Next, as shown in FIG.
') The fin (4) can be caulked and bonded to the substrate (1) by pressing the fin (4) 't-N from both sides.

[Brief explanation of the drawing]

Figure 1 (a) and (b) are plan views and VFR views showing the substrate of the extruded mold material used in the method of the present invention, and Figure 2 @) (b) shows the substrate VC#4 of Figure 1 inserted. The latter plan view, dark view, and FIG. 3 are views showing an embodiment of the present invention in which the fins are caulked and bonded to the substrate. 1...... Substrate of extruded material 2...
・・・・・・・・・－Protrusion 3・−・・・・・・・・・・ Groove 4・・・・・・・・・・・・ Plate fin 4

Claims (1)

[Claims] (1) The substrate is an extruded material with a cross-sectional shape in which many protrusions are formed on one side or screen, #I for fin fitting is cut from the top surface of each of these protrusions, and plate-shaped fins are fitted into these grooves. IP! i
The manufacturing method of the radiator according to the value.