JPH0650798B2 - Heat dissipation system - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention mainly relates to a heat dissipation system used for cooling electronic devices.

[Technical background of the invention and its problems]

In recent years, due to high-density mounting of electronic elements, the heat generation density of electronic devices has increased more and more, and due to the downsizing of devices, it is not possible to provide sufficient space for heat dissipation. Therefore, it is the current situation that the conventional heat radiation by conduction from the fins cannot provide sufficient cooling ability.
Further, in the forced air cooling using a motor fan, a problem of noise arises, so that the present situation is that the capacity and the number of units are greatly limited.

[Object of the Invention] The present invention is an improvement over the above-mentioned drawbacks of the prior art.
It is an object of the present invention to provide a system capable of sufficiently cooling even an electronic element having a high heat generation density.

[Outline of Invention]

In order to achieve the above-mentioned object, according to the present invention, a container having a working fluid sealed therein is provided inside and outside the container with their axes aligned, and one end of each container is attached to a wall of the container. An inner rotating shaft and an outer rotating shaft that are rotatably supported by an inner bearing and an outer bearing, a turbine propeller attached to the other end of the inner rotating shaft and rotated by an evaporative flow of the working fluid, and rotation of the turbine propeller. An inner magnet plate attached to the inner rotating shaft so as to rotate with it, and an outer magnet plate attached to the outer rotating shaft facing the inner magnet plate so as to rotate with the rotation of the inner magnet plate. A fan propeller attached to the other end of the external rotating shaft so as to rotate with the rotation of the external magnet plate, the internal bearing and It is accomplished by constructing the bearing of a non-magnetic material parts bearing respectively.

Example of Invention

The present invention will be described below based on examples. A refrigerant 2 is hermetically sealed inside a container 1 which is an embodiment shown in the figure, and constitutes a gravity type heat pipe. Now, the electronic element 3 having a high heat generation density is bonded to the container 1. Electronic element 3
The heat generated from the refrigerant is transferred to the refrigerant 2 such as Freon, and the refrigerant 2 rises as an evaporation flow. The evaporative flow is
The turbine propeller 4 is rotated, and at the same time, the internal magnet plate 5 is also rotated. The evaporative flow reaching the upper part of the container 1 cools and becomes a liquid, and descends through a return flow path 6 provided in the container 1. The rotation of the inner magnet plate 5 causes the magnet to also rotate the outer magnet plate 7 on the upper outside of the container 1,
The fan propeller 8 mounted coaxially with it will be rotated.

That is, by the action of the magnetic coupling between the inner magnet plate 5 and the outer magnet plate 6, the rotational force of the turbine propeller 4 inside the container 1 can be indirectly transmitted to the fan propeller 8 outside the container 1. With this structure, the container 1 forming the gravity type heat pipe can be kept in a hermetically sealed state, so that the refrigerant 2 does not leak to the outside of the container 1. Therefore, the pressure difference of the evaporation flow of the refrigerant 2 inside the container 1 becomes large, the rotation efficiency of the turbine propeller is improved, and the optimum liquid amount of the refrigerant 2 is maintained, so that the cooling effect as the gravity type heat pipe is obtained. It is possible to make the most of it. Further, the wind generated by the fan propeller 8 cools the outer wall of the container 1 and cools the electronic element 3. Because the heat pipe is composed of the container 1 and the refrigerant 2, the heat generated from the electronic element 3 is continuously transferred to the container 1 with almost no thermal resistance.

Further, in this system, the more heat generated from the electronic element 3, the more energy of the steam flow for rotating the turbine propeller 4, the more the rotation speed of the fan propeller 8 increases, and the more the cooling effect increases. It has a mechanism. Further, since the non-magnetic bearings 9 and 9'are used inside and outside the container 1, the magnetic force of the inner magnet plate 5 and the outer magnet plate 7 is not applied. Therefore, compared with the use of magnetic bearings, it is possible to prevent deterioration of turbine efficiency and fan efficiency and obtain smooth shaft rotation.

〔The invention's effect〕

As described above, the system of the present invention reversely utilizes high heat generation to obtain power to cool the system. Therefore, the system of the present invention has an extremely high utility value as compared with the conventional cooling method of dissipating heat wastefully. Further, by using the non-magnetic bearing, the turbine performance is improved, and since it has an automatic adjustment mechanism, it is highly effective in cooling high-density heat generating electronic elements for high-density mounting of electronic equipment.

[Brief description of drawings]

The drawings are cross-sectional views showing an embodiment of a heat dissipation system according to the present invention. 1 ... Container, 2 ... Refrigerant (Freon) 3 ... Electronic element, 4 ... Turbine propeller 5 ... Inner magnet plate, 6 ... Liquid return flow path 7 ... Outer magnet plate, 8 ... Fan propeller 9 ... Non-magnetic bearing

Claims (1)

[Claims] 1. A container in which a working fluid is enclosed, and an inside and an outside of the container are provided with their axes aligned with each other, and one end of each is rotatably supported by an inner bearing and an outer bearing on a wall of the container. An inner rotating shaft and an outer rotating shaft, a turbine propeller attached to the other end of the inner rotating shaft and rotated by an evaporative flow of the working fluid, and the inner rotating shaft to rotate with the rotation of the turbine propeller. An internal magnet plate attached to the shaft,
An external magnet plate that is attached to the external rotary shaft facing the internal magnet plate so as to rotate with the rotation of the internal magnet plate, and the external rotary shaft that rotates with the rotation of the external magnet plate. And a fan propeller attached to the other end thereof, wherein the inner bearing and the outer bearing are each made of a non-magnetic bearing.