JPH087255Y2 - Heat pipe radiator - Google Patents

Description

TECHNICAL FIELD The present invention relates to a heat pipe type radiator used for radiating heat from a heating element in audio equipment, copying machines, computers and the like.

As a radiator of this type, for example, as disclosed in Japanese Utility Model Laid-Open No. 62-47143, an extension wall is provided so as to be continuous with at least one of the left and right side walls of the heat pipe body. The extension wall extends upward from the heat pipe body, and the heating element is brought into contact with the outer surface of the side wall continuous with the extension wall, and the lower end of the heating element is positioned at substantially the lower end level of the side wall. It is known that a screw penetrates a heating element and is screwed into an extension wall.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the radiator, the heating element is brought into contact with almost the entire height of the side wall. Therefore, the heat of the heating element is transferred to almost the entire height of the side wall, and the transferred heat evaporates and vaporizes the working liquid sealed in the heat pipe body.

Generally, the hydraulic fluid is retained in the lower part of the heat pipe body. Therefore, in order to efficiently evaporate and vaporize the working liquid, it is sufficient to heat the lower portion from the middle of the height of the side wall, but in the radiator described above, the upper portion from the middle of the height of the side wall is also heated, Since the unnecessary portion is heated, the working fluid cannot be efficiently evaporated and vaporized by the heat of the heating element, and there is a problem that the heat dissipation performance is not good.

An object of the present invention is to provide a heat pipe type radiator that solves the above problems.

Means for Solving the ProblemsThe heat pipe radiator according to the present invention is provided with an extension wall connected to at least one of the left and right side walls of the heat pipe main body, and a heating element is provided from the extension wall to the outer surface of the side wall connected to the extension wall. In a heat pipe type radiator in which screws are abutted and screwed into the extension wall through the heating element, the extension wall extends downward from the heat pipe body, and the heating element has its upper end as a side wall. It is located at a lower level than the middle of the height, and a loop-shaped passage including an upper passage and a lower passage is formed in the middle of the height of the heat pipe body by a horizontal partition wall having communication portions at both ends. It is characterized by being present.

Function In the heat pipe type radiator according to the present invention, the extension wall extends downward from the heat pipe body,
Since the upper end of the heating element is located at a lower level than the middle of the height of the side wall, the heat of the heating element is transferred to a portion lower than the middle of the height of the side wall.

Further, since a loop-shaped passage including an upper passage and a lower passage is formed in the middle of the height of the heat pipe main body by a horizontal partition wall having communication portions at both ends, the working liquid evaporated and vaporized in the evaporation portion is formed. Flows through the upper passage to the condenser, and the working liquid condensed in the condenser is returned to the evaporator through the lower passage.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the heat pipe type radiator comprises a heat pipe main body 11 and parallel vertical plate-shaped heat radiating fins 12 provided in the condensing portion of the heat pipe main body 11. The heat pipe body 11 is a rectangular tubular peripheral wall 13 made of extruded aluminum material.
And a lid 15 with a working fluid injection pipe 14 provided at the end of the peripheral wall 13 on the side of the evaporator, and a lid 16 provided at the end of the peripheral wall 13 on the side of the condenser. In the middle part of the height of the peripheral wall 13, the horizontal partition wall 19 is formed by cutting out both ends to form communication parts 17 and 18.
Are provided so that the upper passage 21 and the lower passage 22 are
A loop-shaped passage including is formed.

Both left and right side walls 23, 24 of the peripheral wall 13 are provided with left and right extension walls 25, 26 extending downward, and an outer surface of the right extension wall 26 is a heating element mounting surface 27. As shown in detail in FIG. 3, a screw hole 28 is formed in the right extension wall 26, and a screw 29 penetrating the lower portion of the heating element S is screwed into the screw hole 28, whereby the heating element S is mounted. ing.

The working fluid W is injected into the heat pipe body 11 from the injection pipe 14, and then the injection pipe 14 is caulked and closed. In addition, a wick or a group is provided in the heat pipe body 11 as needed.

The heat of the heating element S is directly transferred to the lower part of the height of the right side wall 24, and is also transferred to the right side wall 24 through the right extension wall 26. Due to the heat transferred in this way, the working fluid W staying in the lower passage 22 is heated and vaporized, and the gaseous working fluid is discharged from the evaporator-side communicating portion 17 to the upper passage as shown by an arrow A in FIG.
It flows into 21 and reaches the condenser through the upper passage 21. During this time, the gaseous working fluid becomes heat radiating liquid, and as shown by arrow B,
It flows down from the condensing part side communication part 18 to the lower passage 22.

Another embodiment is shown in FIG. In this embodiment, in addition to the lower left and right extension walls 34 and 35 extending downward from the left and right side walls 32 and 33 of the pipe body 31, upper left and right extension walls 36 and 37 extending upward are provided. Heating element mounting surface 3
8 is the outer surface of the right extension wall 35 extending downward, as in the above embodiment.

Yet another embodiment is shown in FIG. In this embodiment, the partition wall 42 inside the pipe body 41 is formed to be thick, and in the same manner as the above embodiments, in addition to the heating element mounting surface 44 on the outer surface of the right extension wall 43, the right side wall corresponding to the partition wall 42. The outer surface in the middle of the height of 43 is made into the heating element mounting surface 45, and both heating element mounting surfaces 4
The heating element S is attached by screws 46 across 4,45.

Effect of the Invention According to the present invention, since the heat of the heating element is transferred to the lower part of the height of the side wall, the transferred heat efficiently removes the working fluid retained in the lower part of the heat pipe body. It can be vaporized well and the heat dissipation performance can be improved.

Further, the working liquid vaporized and vaporized in the evaporation part flows through the upper passage to the condensing part, and the working liquid condensed in the condensing part is returned through the lower passage to the evaporation part. It can be transported efficiently between the condensers,
Along with being able to evaporate the working fluid efficiently, a radiator with better performance can be obtained.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention, FIG. 1 is a perspective view including a crushed section, FIG. 2 is a vertical sectional view taken along line II-II of FIG. 1, and FIG. An enlarged transverse sectional view taken along line III-III of FIG. 1, FIGS. 4 and 5 are sectional views corresponding to FIG. 3 showing another embodiment. 11,31,41 …… Heat pipe body, 17,18 …… Communication part, 19,
42: partition wall, 21 ... upper passage, 22 ... lower passage, 24,3
3 …… Side wall, 26, 35, 43 …… Extension wall, 29 …… Screw, S ……
Heating element.

Claims (1)

[Scope of utility model registration request] 1. Left and right side walls 2 of the heat pipe body 11, 31, 41
Extension wall 26,35, connected to at least one of 4,33
Side wall 2 that is provided with 43 and extends from extension walls 26, 35, 43 to this
4,33 In the heat pipe type radiator in which the heating element S is brought into contact with the outer surface and the screw 29 penetrates the heating element S and is screwed into the extension walls 26,35,43, the extension walls 26,35,43 Extends downward from the heat pipe bodies 11, 31, 41, and the heating element S has its upper end on the side wall 2
It is located at a lower level than the middle of the height of 4,33 height, and the communication part 1 at both ends is located at the middle of the height inside the heat pipe body 11, 31, 41.
A heat pipe type radiator in which a loop-shaped passage including an upper passage 21 and a lower passage 22 is formed by horizontal partition walls 19 and 42 having 7 and 18.