JPS5840475A - Cooling device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooling device that removes heat from a heat generating body within an electronic device.

Conventionally, there has been a device of this type as shown in FIG.

In FIG. 1, 1 is a cooler, 2 is an electronic device to be cooled, 3 is a tank, 4 is a coolant, 5 is a pump that circulates the coolant 4, and 6 is a device that connects the cooler 1 and the electronic device 2. A connecting cooling pipe 1 is a heating element inside the electronic device 2. 8,
Reference numeral 9 denotes a heat exchanger and a fan for removing heat from the cooling liquid 4. 10 indicates the flow direction of the cooling liquid 4.

Next, the flow of the coolant 4 will be explained.

Coolant 4 stored in tank 3 is sent to heating element T through cooling pipe 6 by pump 5. Next, heat is absorbed from the heating element 7 and returned to the tank 3 after being released by the heat exchanger 8 and fan 9.

This circulation keeps the temperature My of the coolant 4 constant.

In the conventional cooling device described above, when starting, the air existing inside the cooling pipe 6 is circulated simultaneously with the cooling liquid 4, so that the air passes through the cooling pipe 6 in the form of minute bubbles. When these air bubbles enter the inside of the heating element T, they will be adsorbed to the heating surface, resulting in an increase in temperature at the extremes.

This invention was made to eliminate the above-mentioned drawbacks, and by installing a bubble separation tank and an automatic air-bleeding pulp in the middle of the cooling pipe, the air bubbles generated in the cooling pipe are released outside the pipe, and the inside of the heating element is The object of the present invention is to provide a cooling device that does not cause an increase in the temperature of the extreme parts of the air.

This invention will be explained below.

FIG. 2 shows an embodiment of the present invention.

In FIG. 2, numerals 1 to 18 are the same as the conventional one in FIG. Reference numeral 11 designates a bubble separation tank that floats the air bubbles from the cooling pipe 6 to the upper part, and reference numeral 12 designates an automatic air vent valve that automatically discharges air bubbles rising from the air bubble separation tank 11 to the outside of the tube.

Figure 3 shows the bubble separation tank 11 and automatic air vent valve 12.
Show details. In FIG. 3, reference numeral 13 indicates air bubbles mixed into the coolant 4, and the rest is the same as in FIG. 2.

Next, the operation of the embodiment shown in FIGS. 2 and 3 will be explained.

When the pump 5 also supplies water at the time of starting the cooling system, the air present in the cooling pipe 6 and other parts continues to exist in the cooling liquid 4 as small bubbles 13. Since the bubbles 13 have buoyancy even in the same pressure liquid, the bubbles 13 are buoyant at a position where the flow velocity is low.
It is possible to separate as shown in the figure. The coolant 4 mixed with air bubbles 13 is introduced into the air bubble separation tank 11 by being circulated through the piping system by the pump 5 . The bubbles can be discharged out of the piping using the bubble separation tank 12. By repeating this circulation, air bubbles 1 mixed into the cooling liquid 4 are created in a short time.
3'4 to the outside of the pipe, thereby ensuring more reliable operation of the cooling device.

As explained above, according to the present invention, the air bubbles that were mixed in from the beginning and the air bubbles generated at the cross-sectional change part in the pipe can be easily discharged in a short time, so that the local temperature rise due to the air bubbles can be prevented. It has the effect of preventing corrosion of local piping.

[Brief explanation of the drawing]

FIG. 1 is a piping system diagram of a conventional cooling device, FIG. 2 is a piping system diagram showing an embodiment of the present invention, and FIG. 3 is an enlarged sectional view of a bubble separation tank in the embodiment of FIG. In the figure, 1 is a cooler, 2 is an electronic device, 3 is a tank, 4 is a coolant, 5 is a pump, 6 is a cooling pipe, 7 is a heating element, 8 is a heat exchanger, S is a fan, 10 is a coolant 11 is a bubble separation tank, 12 is an automatic air release valve, and 13 is a bubble. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Shin Kuzuno (1 other person) Figure 1

Claims (1)

[Claims] In cooling equipment consisting of coolers, cooling pipes, and electronic equipment,
A cooling device characterized in that a bubble separation tank is provided in the cooling pipe between the cooler and the electronic device, and the bubble separation tank is provided with an automatic air vent valve.