JPH0677363A - Expandable radiation fin - Google Patents

Abstract

(57) [Summary] [Purpose] To realize a reasonably and economically deployable heat dissipation fin that can improve heat dissipation efficiency simply and easily. A first radiating fin section 13 having a hollow comb-shaped cross section, and a second radiating section having a comb tooth-shaped cross section that can be loosely fitted inside the first radiating fin section 13 And the heat radiation fin portion 15 of. Alternatively, the first radiating fin portion 23 having a comb tooth-shaped portion and a corresponding comb that is rotatably connected to the first radiating fin portion 23 and can mesh with the comb tooth-shaped portion of the first radiating fin portion 23 when folded. And a second heat radiation fin portion 25 having a toothed portion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat dissipating fin that can be deployed.

[0002]

2. Description of the Related Art In an electronic device, for example, a communication device, a high power consumption electronic unit, such as a high-power amplifier, which constitutes a part of the electronic device, is required to have a radiation fin in order to generate extremely high heat. These fins have a size (capacity) considering the mounting of the electronic unit to the device frame.
Inevitably limited.

[0003]

However, even after the electronic unit is mounted, even if a vacant space is formed around the radiating fin and the radiating fin partially protrudes into the space, at least the operation and operation of the device will be hindered. Often not. Therefore, in the present invention, it is an object of the present invention to configure an radiating fin so as to be partially deployable after mounting an electronic unit so as to obtain an efficient and effective cooling effect.

[0004]

In order to solve the above-mentioned problems, a deployable heat radiation fin according to the present invention comprises a first heat radiation fin portion having a comb-shaped hollow cross section and a first heat radiation fin portion. And a second heat radiation fin portion having a comb-shaped cross section that can be loosely fitted in the inside of the housing.

Alternatively, the first radiating fin portion having a comb tooth-shaped portion and a corresponding comb which is rotatably connected to the first radiating fin portion and can mesh with the comb tooth-shaped portion of the first radiating fin portion when folded. And a second heat radiation fin portion having a tooth-shaped portion.

[0006]

The heat radiating area is obtained by inserting the first heat radiating fin portion into the second heat radiating fin portion in a telescoping manner, or folding the first and second heat radiating fin portions so that the first and second heat radiating fin portions are engaged with each other, and by appropriately expanding them. Can be expanded.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a first embodiment of a heat dissipation fin according to the present invention, and FIG. 2 is a perspective view of a second embodiment. First, referring to FIG. 1, a description will be given of the first embodiment. A radiation fin 11 includes a first radiation fin portion 13 having a comb-shaped hollow cross section and a comb dimensionally smaller than this. Second heat radiation fin portion 15 having a tooth-shaped actual cross section
And. The second heat radiation fin portion 15 can be loosely fitted in the first heat radiation fin portion 13 in a nested manner.

Therefore, for example, when the radiation fin 11 is attached to an electronic unit (not shown) and is mounted together with the electronic unit in an apparatus frame (not shown), the second fin is placed before the mounting. The radiating fin portion 15 is housed in the first radiating fin portion 13 so as not to disturb the mounting work, and the second radiating fin portion 15 is pulled out (deployed) after mounting.

Thus, the radiation fin 11 can be effectively utilized.
Can be deployed in an empty space in the equipment frame,
That is, the heat dissipation area of the heat dissipation fins 11 can be extremely easily and easily increased (approximately twice), and the heat dissipation efficiency can be significantly improved. Next, to explain the second embodiment, referring to FIG.
A first radiating fin portion 23 having a comb-shaped actual cross section;
Second through a plurality (three in the figure) of so-called hinges 24
The second heat radiation fin portion 25 is connected to the heat radiation fin portion 23 in a freely expandable (openable / closable) manner. However, the two members 23, 25 are slightly different in shape, and when they are folded (closed) in a box shape, they have an engaging relationship such that their comb-teeth-like portions complementarily mesh with each other. There is. On the other hand, when unfolded (opened), the second radiating fin portion 25 is unfolded on the upper surface of the first radiating fin portion 23.

Therefore, when mounting the electronic unit, the second radiating fin portion 25 is folded so as not to interfere with the mounting, and after mounting, the second radiating fin portion 25 is 180
Try to open it once. This makes it possible to easily double the heat dissipation area, as in the first embodiment.

[0011]

As described above, according to the present invention, since the heat radiation fins can be freely deployed, the heat radiation efficiency can be improved simply and easily by appropriately deploying them, which is rational and economical. .

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of a radiation fin according to the present invention.

FIG. 2 is a perspective view of a second embodiment.

[Explanation of symbols]

 11, 21 ... Radiating fins 13, 23 ... First radiating fins 15, 25 ... Second radiating fins 24 ... Hinges

Claims (2)

[Claims] 1. A first radiating fin portion (13) having a comb-like hollow cross section, and a comb-like tooth shape that can be loosely fitted inside the first radiating fin portion (13). A heat dissipating fin (2) having a cross section and a second heat dissipating fin portion (15). 2. A first radiating fin portion (23) having a comb tooth-shaped portion, and a comb of the first radiating fin portion (23) which is rotatably connected to the first radiating fin portion (23) and is foldable. A second radiating fin portion (25) having a corresponding comb tooth-shaped portion capable of meshing with the tooth portion, and a deployable radiating fin.