JPS6261878B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a heat pipe consisting of a heat receiving area, a heat radiating area, and an adiabatic area between the heat receiving area and the heat radiating area. It is constructed by enclosing a circulating heating medium.

[Background technology]

To control the continuation, stop, and start of heat transfer by a heat pipe, for example, a solenoid valve is installed inside and operated by an electric signal from the outside, or a liquid reservoir is installed in an adiabatic area and a heat medium is inserted into this liquid reservoir. There is a way to condense it. The former is inconvenient in that it is not possible to check the operating state of the solenoid valve, and the latter cannot be applied when the heat pipe is fixed because it requires rotating the heat pipe to turn the liquid reservoir upside down. As described above, there are limitations in application, and there are also inconveniences such as the inability to confirm heat transfer.

[Purpose of the invention]

The present invention has been made in view of the above facts, and an object of the present invention is to provide a heat pipe that can easily and reliably control heat transfer.

[Disclosure of the Invention] This invention connects a branch pipe to a heat insulation area of a main pipe consisting of a heat receiving area, a heat radiation area, and an insulation area between the heat radiation areas of the heat receiving area, and provides bendability between the branch pipe and the main pipe. The present invention provides a heat pipe characterized in that a bypass pipe is connected to the side of the main pipe and the branch pipe to prevent the heat medium from returning from the branch pipe to the heat receiving area when bent. The present invention will be explained below based on the drawings of the embodiments.

In FIGS. 1 to 3, 1 is a heat receiving area with heat receiving fins 2, 3 is a heat radiating area with heat radiating fins 4, and 5 is a heat insulating area formed between the heat receiving area 1 and the heat radiating area 3. 6 is the main pipe that will consist of this. This main pipe 6 is sealed with a heat medium that circulates while repeating evaporation and condensation. The main pipe 6 is used by being inclined upward from the heat receiving area 1 toward the heat radiating area 3. FIG. 1 is a front view showing the device in use. A branch pipe 7 is connected to the heat insulating area 5 of the main pipe 6 to form a liquid reservoir 8. A bendable U-shaped bypass pipe 9 is connected to the side of the main pipe 6 and the branch pipe 7 from the branch pipe 7 to the side near the heat receiving area of the main pipe 6 . The bendability of the U-shaped bypass pipe 9 is as follows:
For example, the opposing sides forming the bypass pipe 9 are bent upward as shown by the chain lines so that the apex thereof is placed above the level of the liquid heat medium stored in the branch pipe 7 forming the liquid reservoir 8. required to reach the goal. The operation of this heat pipe will be explained.

During heat radiation, the liquid phase heating medium accumulated in the heat receiving area 1 progresses to evaporation, passes through the heat insulating area 5, and reaches the heat radiation area 3. The gas phase heating medium that has reached the heat radiation area 3
It radiates heat, condenses, changes into a liquid phase, travels along the inner wall of the main pipe 6, reaches the branch pipe 7 forming a liquid reservoir 8, and further passes through the bypass pipe 9 to reach the heat receiving area 1, where it is reevaporated. circulate.

Stopping the heat radiation is achieved by bending the bendable bypass pipe upward. That is, the liquid phase heating medium condensed in the heat radiation area 3 flows along the inner wall of the main pipe 6 and flows into the branch pipe 7 that forms the liquid reservoir 8. Since this branch pipe 7 is formed in the heat insulation area 5, the liquid phase heat medium is The liquid flow reaching the heat receiving area 1 during heat dissipation is blocked by the upwardly bent bypass pipe 9, which is held by the bypass pipe 9 as shown by the chain line.

The onset of heat dissipation is clear from the above explanation. That is, by restoring the upwardly bent bypass pipe 9 to the state in which it is radiating heat, a liquid flow is formed that causes the liquid phase heating medium stored in the branch pipe 7 to reach the heat receiving area 1 through the bypass pipe 9. achieved.

〔Effect of the invention〕

As an effect of the above-mentioned operation, this invention can control the heat transfer of the heat pipe by bending the bypass pipe, and the operation is simple and reliable, and the presence or absence of heat transfer can be confirmed. points have practical value.

[Brief explanation of the drawing]

1 and 2 relate to an embodiment of the present invention, with FIG. 1 being a front view, FIG. 2 being a side view, and FIG. 3 being a plan view. 1... Heat receiving area, 3... Heat radiation area, 5... Heat insulation area,
7...branch pipe, 6...main pipe, 9...bypass pipe.

Claims (1)

[Claims] 1. Branch pipes are connected to the insulation area of the main pipe, which consists of a heat receiving area, a heat radiation area, and an insulation area between the heat receiving area and the heat radiation area, and the branch pipe and the main pipe have bendability, and when bent, the branch A heat pipe characterized in that a bypass pipe is connected to the side of the main pipe and branch pipes to prevent the return of the heat medium from the pipe to the heat receiving area.