JPS59138894A - Heat pipe - Google Patents

Abstract

PURPOSE:To control the transfer of heat simply and accurately by a method wherein the transfer of heat of the heat pipe is controlled by bending a bypass pipe. CONSTITUTION:Numeral 1 designates a heat receiving zone provided with a heat receiving fin 2, Numeral 3 designates a heat discharge zone provided with a heat discharge fin 4, Numeral 5 designates a heat insulating zone formed between the zone 1 and the zone 3 and Numeral 6 designates a main pipe including the above-mentioned zones. A heat medium which circulates through the main pipe 6 as it repeats evaporation and condensation is sealed in the main pipe 6. The heat insulating zone 5 of the main pipe 6 is connected with a branch pipe 7 in which a liquid stop 8 is formed. Further, the ?-shaped flexible bypass pipe 9 is connected to the main pipe 6 and the branch pipe 7 at the sides of the latters. Thus the stopping of the dissipation of heat is attained by bending the flexible bypass pipe upward.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a heat pipe consisting of a heat receiving region, a heat dissipating region, and an adiabatic region for the heat receiving region and the heat dissipating capacity, and the present invention relates to a heat pipe that repeatedly evaporates and condenses inside the pipe body. 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 heat medium is installed in the liquid reservoir by creating an adiabatic zone. 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 fixedly installed 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 comprises a heat receiving area, a heat dissipating area, a heat receiving area and a heat dissipating load heat insulating area, and a branch pipe is connected to the heat insulating area of the main pipe, and a bypass pipe having bendability between the branch pipe and the main pipe. This is a famous product that provides a heat pipe characterized in that the main pipe and branch pipes are connected to the sides of the main pipe and branch pipes. 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 equipped with heat receiving fins 2, 5 is a heat radiating area equipped with radiating fins 4, and 5 is a heat receiving area 1.
6 is the main pipe consisting of the heat insulation area formed between the heat radiation area and the heat radiation area. This main pipe 6 is filled 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 liquid reservoir 8 is formed by connecting an extraction pipe 7 to the heat insulating area 5 of this main pipe B. And from this extraction tube 7 to the main tube 6
U-shaped bypass pipe 9 with bendability near the heat receiving area 1
is connected to the side of the main pipe 6 and the extraction pipe 7. The bendability of the U-shaped bypass pipe 9 is such that, for example, the opposing sides constituting the bypass pipe 9 are bent upward as shown by chain lines, and the apex thereof is stored in the extubation tube 7 constituting the liquid reservoir 8. It is required to raise the temperature above the liquid level of the liquid phase heating medium. 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. The gas phase heating medium that has reached the heat radiation area filter radiates heat in this heat radiation area filter, condenses, changes into a liquid phase, travels along the inner wall of the main pipe 6, and mostly reaches the extraction pipe 7 where a liquid reservoir 8 is formed. It passes through the bypass pipe 9 and reaches the heat receiving area 1, where it is re-evaporated and circulated.

Stopping the heat radiation is achieved by bending the bendable bypass pipe upward. That is, the liquid-phase heat medium condensed in the heat radiation area flows along the inner wall of the main pipe 6 and is poured into the extraction pipe 7 forming the liquid reservoir 8 . Since this extraction pipe 7 is formed in the heat insulating region 5, it is maintained in a liquid phase, and as shown by the chain line, the liquid flow reaching the heat receiving region 1 during heat dissipation is blocked by the upwardly bent bypass pipe 9, as shown by the chain line.

The onset of heat dissipation is clear from the above explanation. That is, the upwardly bent bypass pipe 9 is restored to the state in which it is dissipating heat, and the liquid phase heat medium accumulated in the removed pipe 7 is passed through the bypass pipe 9 to the heat receiving area 1.
This is achieved by creating a liquid flow that leads to

〔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. There is practical value in being able to recognize a.

[Brief explanation of the drawing]

1 and 2 relate to an embodiment of the present invention, in which FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 5 is a plan view. 1...Heat receiving area 5...Heat radiation area 5...Insulation area 7...Technical pipe 6...Main pipe 9... ...Bypass pipe patent applicant Matsushita Electric Works Co., Ltd. Patent attorney Representative Takemoto, Toshimaru (and 2 others) No. 1 Uchi 4 Shima 2 Cause

Claims (1)

[Claims] (1) A bypass pipe in which a branch pipe is connected to an insulated area of a main pipe consisting of a heat receiving area, a heat radiating area, and an insulating area for the heat receiving area and the heat radiating load, and the branch pipe and the main pipe have bendability. A heat pipe characterized in that a heat pipe is connected to the side of the wood pipe and the branch pipe.