JPS60257157A - Radiator - Google Patents

Abstract

PURPOSE:To increase or decrease the fins freely while fitting or removing them easily by a method wherein multiple and parallel dovetail grooves are made in the longitudinal direction on both sides of sheet type radiator main body to pressure-fit the bottom of U-type fins therein. CONSTITUTION:Multiple and parallel dovetail grooves 9 are made on both sides of sheet type radiator main body 8 at specified interval to pressure-fit the bottom of U-type fins 10 thereinto. Through these procedures, the bottom of fins 10 may be brought into close contact with the ramp of dovetail grooves 9 to be pressure-fitted thereinto. Besides, a fitting metal 12 to fit the fins 10 into the radiator 8 not shown in the figure is provided on the end of main body 8 to be connected to the radiator. In such a constitution, the fins 10 may be fitted or removed easily as well as increased or decreased freely to provide the radiator with high radiating efficiency and multiple utilities.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a heat sink used in power pumps, power ICs, etc. of audio equipment.

Structure of a conventional example and its problems FIGS. 1 to 4 show a conventional heat radiator. The heat sink (1) shown in FIG. 1 is made of extruded aluminum,
The length and thickness of the fin (2) are constant from the beginning. Therefore, although this heat radiator (1) can be used with a specific output C (referred to as a "heat radiator"), it cannot be used with other heat radiators, resulting in a lack of versatility. . Further, due to problems in the processing technology, there is a restriction on the distance between F and I(2), and it is difficult to make it the most efficient heat sink considering the minimum weight and volume occupied in the space.

The radiator (3) shown in FIGS. 2 to 4 includes a main body (5) provided with a plurality of tabs (4) on the side surface,
)'s tab (4) by caulking the locking hole (6) at its center base.
It consists of According to this heat radiator (3), unlike the heat radiator (1) shown in FIG. 1, the number of fins (7) can be easily increased or decreased, and it is versatile enough to be compatible with various heat radiators.

However, there was a problem in that the heat radiation effect of the entire heat radiator (3) was affected by the contact area between the main body (5) and the fins (7). In addition, the reliability of the crimping work is affected by the size of the fin (7), especially the length of the fin (7), and if a crimping failure occurs, the crimping process cannot be performed again, and the main body ( 5) and fins (7) sometimes became unusable.

OBJECTS OF THE INVENTION The present invention solves the problems of the prior art described in 2. It is an object of the present invention to provide a heat radiator that is versatile enough to be compatible with various heat radiators and that can reliably provide a heat radiating effect.

Structure of the Invention (1) In order to achieve the object, the radiator of the present invention includes a main body having a plurality of linear dovetail grooves formed on the side surface.

The protrusion that can be fitted into the linear dovetail groove is configured to have U-shaped fins provided on both sides of the central base and mounting metal fittings provided on both sides of one end. The fins can be easily attached to and removed from the main body, and the dovetail groove and the protrusion of the fin are fixed by contact pressure, so it is possible to obtain reliable thermoelectricity and reliable heat dissipation effects. .

DESCRIPTION OF EMBODIMENTS Hereinafter, a heat sink showing an embodiment of the present invention will be explained with reference to FIGS.
This will be explained using FIG. 14.

In the figure, (8) is a main body having a plurality of longitudinal linear dovetail grooves (9) formed on both sides, and is made of extruded aluminum. 0O is a plurality of V-shaped fins provided on both sides of the central base, which can be fitted into the linear dovetail grooves (9) of the main body (8), and each of which can be fitted into the linear dovetail groove (9) of the main body (8). It is inserted into the groove (9) from above and fixed to the main body (8) by contact pressure.

As shown in Figures 9 to 12, the shapes of the protrusions 09 are those with a relatively large contact area (Figures 9 and 10) and those with a relatively small contact area (Figures 11 and 12). As shown in FIG. 8, the dovetail grooves (9) are provided at the center base of the fiyQd at appropriate intervals in the vertical direction and projecting from both sides.
When this protrusion O1l is inserted, as shown in FIGS. 6 and 7, the protrusion 01) comes into contact with the inclined surface in the dovetail groove (9), and the fin main body (8) It is fixed so that it is pressed against. Therefore, the main body (8) and the fee 7Q
By setting the shape of the protrusion 01) to an appropriate size, the contact area with O can always be maximized as a surface, and heat conduction can be maintained in the best condition. 02 is the main body (8)
A mounting bracket for attaching the to a heat sink (not shown).
As is particularly clear in FIGS. 13 and 14, protrusions 03 that can fit into the dovetail groove (9) are provided on both sides of one end. The protrusion part 0 of this mounting bracket 0■ has the same structure as the protrusion part 01) provided on the fin 00,
When inserted into the dovetail groove (9), the main body (8
) to form a plow that holds.

When assembling this heatsink with this configuration, the main body (
Insert and fix the protrusion a°C of the fish 01 into the dovetail 1Ij (9) of 8) from above. At this time, the number of sheets of fee J(In) is determined to correspond to the number of heat radiators to which this heat radiator is attached.

Then, the endmost dovetail m(
9) Insert and fix the protrusion (la) of the mounting bracket @, and fix the heat radiator to the heat radiator via this mounting bracket 0.

According to such a heat radiator, firstly, the number of fissures 00 can be increased or decreased, making it versatile as a heat radiator for various heat radiators. The range can be greatly expanded by providing dovetail grooves (9) on both sides of the main body. Second
In addition, there is no need for a caulking process, and the fissure αO can be attached to the main body (8) only by insertion work, resulting in a significant reduction in the number of man-hours. Further, since the main body (8) and the fin a0 are in reliable surface contact due to the contact pressure between the inclined surface of the dovetail groove (9) and the protrusion 01), the heat conduction state is good and the heat dissipation effect is excellent. In addition, since the fin 00 is compressed and fixed, even if the fin α0 becomes long, the work can be done easily without problems such as poor caulking or difficulty in work.
When a work defect occurs, it can be recovered by adjusting the shape and dimensions of the protrusion 01). On the other hand, the protrusion Ql)
By setting the shape and dimensions appropriately, the dimensions of the dovetail groove (9) of the main body (8) made of extruded material can be adjusted to 117+
It is possible to absorb Further, by providing the protrusion 03 on the mounting fitting 0 as described above, it is possible to easily attach it to the main body (8) without using screws.

More than the effects of the invention, the present invention allows fins to be easily attached and detached from the main body, allowing the number of fins to be increased or decreased at will, and is versatile enough to be compatible with various heat sinks. Further, since there is no need for caulking work as in the conventional case, the number of work steps can be reduced. Furthermore, since the dovetail groove and the projection of the fin are fixed by contact pressure, reliable heat conduction and reliable heat radiation effect can be obtained.

[Brief explanation of the drawing]

Figures 1 to 4 show conventional examples; Figure 1 is a perspective view of a conventional heat radiator made of aluminum extrusion;
The figure shows an embodiment of the present invention in which fins are caulked to a conventional body, Figure 5 is a perspective view of a radiator according to the present invention, and Figure 6 shows a state in which fins are attached to the body of the radiator. , FIG. 7 is a cross-sectional view of the same, FIG. 8 is an exploded perspective view of the heat radiator, FIG. 9 is an enlarged perspective view of the protrusion, FIG. 10 is a flat view of the same, and FIG. FIG. 12 is an enlarged perspective view of a protrusion having a different shape from FIG. 9, FIG. 12 is a plan view of the same, FIG. 13 is a plan view of a mounting bracket, and FIG. 14 is a perspective view of the same. (8)...Main body, (9) Dovetail groove, 00...Fish, (11) 0:1...Protrusion, θ...Mounting bracket t7) Figure 1 Figure 2! Figure 3 Figure 4 Figure 5 1θ Figure 2 Figure 7 Figure 1θ Figure 11 Figure 1? Figure 1J Figure 74

Claims (1)

[Claims] 1. A main body with a plurality of linear dovetail grooves formed on the side surface, and a U-shaped fin plate provided on both sides of the central base and protrusions that can fit into the linear dovetail grooves on both sides of one end. Heat sink with mounting hardware provided.