JPH0878870A - Heat dissipation equipment - Google Patents

Abstract

PURPOSE: To increase heat dissipation efficiency, simplify assembling work, reduce the manufacturing time and improve working efficiency, by fixing a fin wherein a plurality of chevron-shaped parts are continuously formed in parallel on a base. CONSTITUTION: A fin 10 wherein a plurality of chevron-shaped parts 11 are continuously formed in parallel is formed on a base 1. Thereby, the pitch of the fin 10 can be reduced, the surface area of the fin 10 is enlarged, and heat dissipation efficiency is improved. Further, a pre-work wherein the fins 10 are arranged in parallel is made unnecessary, a position fixing work is facilitated, manufacturing time is reduced, and working efficiency is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat dissipation device used for heat dissipation of electronic coolers, electronic parts, and heat generation measures of switchboards and the like.

[0002]

2. Description of the Related Art In a conventional heat radiating device of this type, as shown in FIG. 6, for example, a base 1 and fins 2 are integrally formed in a comb shape by extrusion. However, in the case of the same apparatus, there is a problem that the fin pitch cannot be reduced due to insufficient strength of the extrusion die as the extrusion condition, and the heat dissipation efficiency is low.

Next, another conventional heat dissipation device in which the fin pitch is reduced to improve heat dissipation efficiency has a structure shown in FIG. In the figure, 3 is a plurality of insertion grooves formed on the upper surface of the base 1 at equal intervals, and 4 is a lower insertion groove 3.
5 is a plate-shaped fin that is inserted into the upper part of the holding jig 5, 5 is a holding jig placed on the upper part of the fin 4, and 6 is a plurality of positioning grooves formed on the lower surface of the holding jig 5. The upper ends of the fins 4 are inserted into the fins 6, the fins 4 are pressed and positioned, and the bottoms of the fins 4 are fixed to the base 1 by vacuum brazing solder.

In the case of the apparatus shown in FIG. 7, since the plate-shaped fins 4 are provided upright in the insertion groove 3 of the base 1, the stability is poor and the position fixing work by the holding jig 5 is difficult. is there.

Next, another conventional heat dissipation device which facilitates the position fixing work has a structure shown in FIG.
In the figure, 7 is a fin in which a protrusion 8 is integrally formed in the center by extrusion, and the protrusions 8 of the fins 7 are arranged side by side in contact with the center of the adjacent fins 7. 7 positioning is performed. Reference numeral 9 is a holding jig 9 placed in contact with the upper surface of each fin 7, and each fin 7 is held by the holding jig 9, and the lower portion of each fin 7 is placed on the base 1 by ultrasonic soldering. Is stuck to.

[0006]

In the case of the conventional apparatus shown in FIG. 8, the assembly work such as the pre-work for positioning the fins 7 in parallel and positioning is required, which is complicated, the manufacturing time is long, and the work efficiency is high. There is a problem that is low. The present invention has been made in consideration of the above points, and an object of the present invention is to provide a heat dissipation device that improves heat dissipation efficiency, simplifies assembly work, shortens manufacturing time, and improves work efficiency.

[0007]

In order to solve the above-mentioned problems, the heat dissipation device of the present invention is such that a fin having a plurality of mountain-shaped portions formed continuously in parallel is fixed to a base.

[0008]

The heat dissipation device of the present invention having the above-described structure is
Since the fins formed by continuously forming a plurality of mountain-shaped portions in parallel are fixed on the base, the fin pitch can be reduced and the surface area of the fins can be increased to improve heat dissipation efficiency. Furthermore, pre-installation work for arranging fins is unnecessary, position fixing work becomes easy, and manufacturing time is shortened.
Work efficiency is improved.

[0009]

EXAMPLES Examples will be described with reference to FIGS. 1 to 5. (Embodiment 1) First, in FIGS. 1 to 3 showing Embodiment 1, 10 is a fin made of a material having good heat conductivity, and a plurality of mountain-shaped portions 11 are continuously formed in parallel. .

Then, as shown in FIG. 2, the fin 10 is placed on the pace 1 and the U-shaped holding jig 12 is used.
The left, right, and upper sides of the fin 10 are pressed and positioned to prevent displacement in the vertical and horizontal directions, and the fin 10 is fixed on the base 1 by ultrasonic soldering or brazing solder.

As shown in FIG. 3, when the outer surface of each mountain-shaped portion 11 of the fin 10 is forcibly air-cooled by the fan 13 located above the fin 10, the outer surface of the mountain-shaped portion 11 is forcedly air-cooled. Is obtained, and a natural heat dissipation effect is obtained inside the mountain-shaped portion 11 that is not touched by the air from the fan 13.

(Embodiment 2) Next, in FIGS. 4 and 5 showing Embodiment 2, the same reference numerals as those in FIGS. 1 to 3 indicate the same or corresponding ones, except that the left side of the base 1 is This is a point in which the side plate 14 is provided upright on both side edge portions on the right side, and the side plates 14 prevent the fins 10 from shifting to the left and right.
As shown in FIG.
The upper side of the fin 10 is pressed down to prevent the fin 10 from being displaced upward and downward.

Then, as in the first embodiment, when forced air cooling is performed by the fan 13 as shown in FIG. 5, a forced air cooling effect is obtained on the outer surface of each mountain-shaped portion 11, and the mountain-shaped portion 11 is obtained.
A natural heat dissipation effect can be obtained inside. In addition, the second embodiment
The base 1 and the side plate 14 may be integrally formed by extrusion, or the side plate 14 may be fixed to the base 1 by welding.

[0014]

Since the present invention is constructed as described above, it has the following effects. In the heat dissipation device of the present invention, since the fins 10 in which a plurality of mountain-shaped portions 11 are continuously formed in parallel are fixed to the base 1, the pitch of the fins 10 can be reduced and the surface area of the fins 10 can be reduced. The heat dissipation efficiency can be improved by increasing the size. Further, the pre-work for arranging the fins 10 side by side is unnecessary, the position fixing work is facilitated, the manufacturing time can be shortened, and the work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a front view of the manufacturing process of FIG.

3 is a front view of the usage state of FIG. 1. FIG.

FIG. 4 is a front view of the manufacturing process according to the second embodiment of the present invention.

5 is a front view of the usage state of FIG. 4. FIG.

FIG. 6 is a front view of a conventional example.

FIG. 7 is a front view of the manufacturing process of another conventional example.

FIG. 8 is a front view of still another conventional manufacturing process.

[Explanation of symbols]

 1 base 10 fin 11 mountain shape part

Claims (1)

[Claims] 1. A heat dissipation device in which a fin having a plurality of mountain-shaped portions formed continuously in parallel is fixed on a base.