JPS58192634A - Manufacture of radiator - Google Patents

Abstract

PURPOSE:To easily caulk and couple and manufacture a radiator which is high in thermal conductivity and pulling-out strength between a fin and a substrate, by fitting each fin into an inclined groove of a specified angle, which is provided at narrown intervals on the substrate, and caulking and coupling it to the substrate. CONSTITUTION:Many long grooves 2 are cut in parallel and at equal intervals along a diagonal direction B on a surface A of a substrate 1. The direction B of this groove 2 is set so that an angle alpha against a face C vertical to the substrate surface A becomes 45 deg. or a larger angle than it. Subsequently, a fin 3 whose fitting part 3-a is bent in advance so as to form the angle alpha against a fin root part 3-b is fitted into the groove 2. Subsequently, the fin fitting part 3-a is caulked and coupled in the groove 2 by crushing an intergroove part 4 of the substrate surface A.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a radiator, and to an improvement in a method for fitting a fin into a groove provided on a plate attached to a pancreas joint and caulking the fin to the substrate K. In this woodcutter's radiator, a method of implanting thin fins on the board with very narrow fin spacing, for example, around 0.3mm between the fins on the front edge of 2mm, is to fit the fins into grooves provided on the board. and the length S corresponding to the chevron tip and the fin.
A method is known in which the convex portions of the substrate are crushed using a spacer plate having a fin ttPL (%Koshō 36-9
565 Publication).

The present invention provides an improved method of manufacturing a heat sink in which fins are fitted into grooves provided in a substrate and the fins are caulked together.

The percentage value of the present invention is that #I provided on the substrate 11C is an oblique groove having an angle of 45° or more with respect to the straight surface of the substrate 11C, and the groove of the fin is fitted into the groove. As a result, the dark heat transfer 4It between the board and the fin becomes large, and when the fin is removed from the groove, the force in the direction is large, and the father fin'
The following is an explanation of this 8fI# using an example shown in (2) below.

In Figures 1 and 2, (1) shows a base made of aluminum or aluminum alloy, and this Tg plate (1
) is cut along the diagonal direction (b) into the surface of the hole (2).
) are provided in parallel and in the lattice, but with @(
Fin 0) is caulked and joined to this 111 (2) whose angle (α) with respect to the plane 0 perpendicular to the tlk plate surface rjIJ (2) in the direction of 2) is 45° or more. As shown in Fig. 3, the part (3-1) that fits into the groove (2) is bent in advance so as to form an angle f (&) with respect to the fin base (3-b). (3), by fitting the fitting part (3") into the groove (2) having a slightly thicker groove width and crushing the groove connecting part (4) in the surface of the first substrate according to the usual method. Fin fitting part (3-&
) can be caulked into the groove 0), and the fin bases (3-b) can be successively implanted in an upright state relative to the substrate surface 1^. In the above, the base of the fin (3) (
3-b) and the fitting part (3-a) at an angle If (ff) in advance.
Although the KJiA curve is formed, the fitting part (3-1) of the fin (3) where the fitting part and the base are in a straight line is
ThLJ6 binding 1. After 1. Jlli club (3-b)
The song may be played perpendicular to the tlt&& face.

In the above embodiment, the fins are attached to only one side of the substrate, but it is also possible to cut diagonal grooves on both sides of the substrate and caulk the fins to both sides of the substrate.

As described above, according to the present invention, since the #l+ groove is cut diagonally, the contact area between the fin and the substrate is approximately 50% larger than that of the conventional vertical groove with the same depth in the vertical direction. Thermal conductivity between the fin and the board can be increased in proportion to this. Coupled with the increase in the contact area mentioned above, the mating direction of the fin is Since the fins are diagonally crossed, the fins can be removed from the board with great strength, and the fins can be easily caulked and connected to the J&plate, so they have great industrial value.

[Brief explanation of the drawing]

1 and 2 are a plan view and a sectional view showing a substrate used in an embodiment of the present invention, and FIG. 3 shows a state in which a fin is fastened and connected to a Ji plate. It is an explanatory diagram. １・・・・・・・・・・・・Board 2・・・・・・・・・・Warrior 3・・・・・・・・・・・・Finn Town

Claims (1)

[Claims] (1) In a method of manufacturing a heatsink in which fins are fitted into a large number of grooves arranged at extremely narrow intervals on a substrate, and the fins are caulked and bonded to the substrate, the grooves are placed at a 450° angle with respect to a plane perpendicular to the substrate.
A method for manufacturing a heat radiator, characterized in that the groove is formed into a diagonal groove having an angle f or larger than that.