JPH07231184A - Air cooling device for heat generating part - Google Patents

Abstract

PURPOSE:To provide an air cooling device for heat generating parts for cooling a radiator reliably. CONSTITUTION:A radiator 2 is placed and added to unillustrated heat generating parts which are mounted to a printed circuit board 3. A front surface plate 6 and a case 7 for covering the printed wiring board 3 are provided. A fan unit 8 consists of two fans 9 and 10 and an unillustrated duct. The fans 9 and 10 are installed at the lower part of the radiation 2 and feed air to the radiator 2 for forced cooling. Two fans 9 and 10 are constituted so that a blast shaft line is in parallel with the fin of the cooling body 2 and the fans cross skewly in a manner that the axis line in the longitudinal direction of the radiator 2 is held from both sides. Therefore, even if either one of the fans 9 and 10 fails, the other functions properly, thus improving the reliability in air cooling. Also, a dust allows air to flow smoothly to the fan, thus improving the blasting efficiency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiator, which is commonly placed and attached to a flat plate-like heat-generating component mounted on a printed wiring board in a straight line, by two fans so as to reliably perform forced air cooling. The present invention relates to an air cooling device for a heat generating component.

[0002]

2. Description of the Related Art In the prior art, a heat radiating body commonly mounted and attached to a flat plate-shaped heat-generating component mounted linearly on a printed wiring board is provided with a single radiator whose longitudinal axis is the ventilation axis. A fan is used to force air cooling.

[0003]

In the conventional example, when one fan fails, the heat-generating components are forced to rely on natural air cooling by a radiator, which may lead to performance deterioration and shortening of life of the components. there were. In other words, there was a problem that the reliability of air cooling was low. The problem to be solved by the present invention is to solve the above problems of the prior art and to provide an air-cooling device for a heat-generating component that air-cools a radiator with high reliability.

[0004]

SUMMARY OF THE INVENTION The present invention is an apparatus for air-cooling a radiator, which is mounted and attached commonly to flat plate-shaped heat-generating components mounted side by side in a straight line, by two fans. Is a strip plate-shaped fin that is arranged in multiple layers on the surface of the heat-generating component and has a longitudinal direction in which the heat-generating components are arranged, and a strip-plate supporting column that is orthogonal to the fin and extends in the same direction. The two fans are configured so that their respective air blow axis lines are parallel to the fins and intersect the heat radiator longitudinal axis lines obliquely so as to sandwich them from both sides. It is preferably provided with a duct.

[0005]

According to the present invention, the two fans are obliquely formed in parallel with the fins of the heat radiator mounted and attached to the mounted heat-generating component and sandwiching the longitudinal axis of the heat radiator from both sides thereof. The air is blown in the direction intersecting with, and the flow of this air advances along the pillars, and the radiator is forcibly cooled by air. Further, since the duct is provided in the front stage of each fan, the air can smoothly flow into each fan.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an air-cooling device for heat-generating components according to the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of the embodiment. In FIG. 1, the radiator 2 is placed and attached to a heat generating component (not shown) mounted on the printed wiring board 3. 6 is a front board, 7 is a printed wiring board 3
Is a case that covers. A fan unit 8 is composed of two fans 9 and 10 and a duct (not shown). The fans 9 and 10 are installed below the radiator 2 and blow air to the radiator 2 for forced air cooling.

The heat-generating component 1 and the radiator 2 will be described with reference to FIGS. FIG. 3 is a side view of the mounted heat-generating component with a radiator, and FIG. 4 is a plan view of the same.
In these figures, the heat-generating component 1 has a flat plate shape, and is mounted in parallel on the printed wiring board 3 in two rows. Leads, which are not labeled, are arranged in parallel on one side of each heat generating component 1, and are mounted on the printed wiring board 3.
A radiator 2 is attached so as to be commonly mounted on the two rows of heat-generating components 1. This radiator 2 is a rectangular plate-shaped fin 2
a are arranged in parallel in a multi-layered manner, and strip-shaped support columns 2b are provided so as to be orthogonal to the fins 2a at the center line in the longitudinal direction. The attachment of the heat radiator 2 to the heat-generating component 1 is performed by the fixing bracket 4 and the machine screw 5 formed in the Ω shape.

The arrangement of the fins 9 and 10 will be described with reference to FIG. 2, which is a front view of the essential portions of the embodiment. In FIG. 2, the fin unit 8 includes a frame 11, a partition plate 12, a front plate 13, a case portion, and fans 9 and 10 mounted on the upper surface of the frame 11. The front plate 13 is provided with ventilation holes which are not designated by reference numerals, and upper and lower ducts 14 and 15 which communicate with the ventilation holes and are partitioned by the partition plate 12 are provided. The radiator 2
It is placed and attached commonly to the mounted heat-generating component 1 with its longitudinal axis vertical. Each of the two fans 9 and 10 has an air blow axis indicated by arrows P and Q that is parallel to the fins of the radiator 2 and diagonally intersects the longitudinal axis of the radiator 2 from both sides thereof. Is configured as follows. Therefore, the flow of air in each direction of P and Q travels along each side surface of the support column 2b, and the whole is forcedly cooled by air.

As a result, even if one of the fans 9 and 10 fails, the other one will function, so that the reliability of air cooling is improved. In addition, the ducts 14 and 15 provided in front of the fans 9 and 10 facilitate the inflow of air into the fans, improve the air blowing efficiency thereof, and thus enhance and support the air cooling function.

[0010]

According to the present invention, the two fans are arranged in parallel with the fins of the heat radiator mounted and attached to the mounted heat-generating components in parallel, and sandwich the longitudinal axis of the heat radiator from both sides thereof. The air is blown in a direction that intersects diagonally, and the flow of this air advances along the stanchions to forcibly cool the radiator. Therefore, even if any one of the fans fails, the other one will function, so that reliability of air cooling is improved. Further, since the duct is provided in the front stage of each fan, the inflow of air into each fan becomes smooth, the air-blowing efficiency is improved, and the air-cooling action is strengthened and supported.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment according to the present invention.

FIG. 2 is a front view of a main part of the embodiment.

FIG. 3 is a side view of a mounted heat-generating component with a radiator.

FIG. 4 is a plan view of the same.

[Explanation of reference numerals] 1 heat-generating component 2 heat radiator 2a fin 2b pillar 3 printed wiring board 4 fixing bracket 5 machine screw 6 front plate 7 case 8 fan unit 9,10 fan 11 frame 12 partition plate 13 front plate 14, 15 duct

Claims (2)

[Claims] 1. A device for air-cooling a radiator, which is mounted and attached commonly to flat plate-shaped heat-generating components mounted side by side in a straight line by two fans, wherein the heat-radiating component is parallel to the surface of the heat-generating component. The two fans are composed of strip-shaped fins which are arranged in multiple layers and whose longitudinal direction is the direction in which the heat-generating components are arranged, and strip-shaped support columns which are orthogonal to the fins and extend in the same direction. An air-cooling device for heat-generating components, characterized in that each air blow axis is parallel to the fins and is diagonally intersected with the longitudinal axis of the radiator from both sides thereof. 2. The air-cooling device for a heat-generating component according to claim 1, wherein a duct is provided in front of each fan.