JPS6219690A - Heat pipe coupler - Google Patents

Abstract

PURPOSE:To provide a heat pipe coupler capable of efficiently performing the heat transport by inverting two single-body heat pipes into the coupler, forming a heat transport chamber around the insertion port, and injecting a heat transport medium fluid into the heat transport chamber. CONSTITUTION:A heat pipe coupler 10 comprises a cylindrical pipe 11, an end plate 12 with an injection pipe, an end plate 13 and a fluid 14. The cylindrical pipe 11 is a heat transfer member in which are formed an insertion port 11a and a heat transport chamber 11b. The heat pipe coupler 10 couples single-body heat pipes 21 and 22 which have been inserted through both ends of the insertion port 11a so that these ends are made contact with each other. In this case, heat transported through the single-body heat pipe 21 is uniformly transmitted to the heat transport chamber 11b of the coupler from a condensing part of the heat pipe 21. In this heat transport chamber 11b, by the capillary action of a groove 11c a liquid 14 evaporates at the portion contacting a heat pipe 22, that is, the evaporating part, and its steam is shifted and condensed at the contact portion with the pipe 22 that is, the condensing part. Therefore, the heat transport is carried out. The heat transmitted to the condensing part in the heat transport chamber 11b is transmitted to the heat pipe 22 within the injection port 11a.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention has a function as a heat transfer body similar to a normal heat pipe, and when connecting individual heat pipes, the heat transfer amount of the individual heat pipes is This invention relates to a heat pipe assembly that transfers heat to a single heat pipe.

[Technical background of the invention and its problems] Conventionally, as means for joining heat pipes for transferring heat, there have been two methods: one using an adhesive as shown in Figure 4, and the other as shown in Figure 5. There is a joining method using metal fittings and fasteners. That is, FIG. 4 shows the end portions of one side of the prismatic heat pipes 11 and 12 joined together with the adhesive 13, and the arrows in the figure indicate the heat flux. In this case, metal fittings 18.17 are attached to each of the heat columnar heat pipes 14.15, and these metal fittings 16.17 are attached to the tightening tool 1.
8.19, and the arrows in the figure indicate the heat flux.

However, with the adhesive bonding method shown in Figure 4, only a portion of the vibrator surface, which is the heat transfer surface of the heat pipe, is used. In comparison, the heat flux at the joint surface increases when the same amount of heat is transferred. For this reason, the temperature difference at the joint surface increases, and the drying of the evaporation part of the heat pipe occurs with a smaller amount of heat, so the heat pipe itself can only transfer heat at its maximum amount of heat. Can not. Further, as shown in FIG. 5, the joining means using metal fittings and fasteners has the problem of increasing weight.

[Purpose of the Invention] This invention was made in order to improve the above-mentioned problems, and it is a method of efficiently transporting heat with a small temperature difference and preventing drying out when heat pipes are joined. The purpose of the present invention is to provide a heat pipe assembly that can be used.

[Summary of the Invention] That is, the heat pipe assembly according to the present invention uses a heat conductive member to form an insertion port that tightly contacts and fixes each circumferential surface of two single heat pipes when inserted, and this insertion A heat transport chamber is formed almost around the mouth, and a liquid serving as a heat transport medium is injected into the heat transport chamber, and further, the inner surface of the heat transport chamber has a direction in which the single heat pipe is inserted. It is characterized by having a large number of grooves formed in the same direction.

[Embodiment of the Invention] An embodiment of the invention will be described below with reference to FIGS. 1 and 2.

Figure 1 shows its configuration, with figure (a) being a front view and figure (a) being a front view;
b) The figure shows (a) a side sectional view taken along the line A-A in the figure, and (c) the figure shows a front sectional view taken along the line B-B in the figure (b). ing. That is, this heat pipe assembly IO consists of a cylindrical vibrator 11, an end plate 12 with an injection tube, an end plate 13, and a liquid 14. Cylindrical pipe 1
Reference numeral 1 is a shaped heat conductive member (aluminum or stainless steel) in which an insertion opening 11a and a heat transport chamber 11b are formed. The inner diameter of the insertion port Lla is formed to match the diameter of a single heat pipe (not shown) to be coupled. The heat transport chamber 11b is formed through the outer and inner surfaces except for a portion, and a large number of V-shaped (or rectangular or trapezoidal) grooves 11c are formed in the longitudinal direction. ing. On the other hand, the end plate 12 with injection tube and the end plate 13
are formed into a ring shape using the same material as the pipe 11, and have the same outer and inner diameters as the outer and inner circumferences of the pipe 11, and are fixed to both ends of the vibrator 11 by electron beam welding.

The injection tube 12a of the end plate 12 is sealed after injecting the liquid 14 into the vibrator 11. Ammonia, water, alcohol, etc. are used as the liquid 14. This liquid 14 is injected into the injection tube 12a.
is injected into the heat transport chamber 11b inside the vibrator 11 through the
Evaporation or condensation is repeatedly caused in this heat transport chamber 11b,
This allows it to be used as a heat transfer medium to transport heat.

Regarding the action of the heat pipe assembly as described above, the second
This will be explained with reference to the figures.

FIG. 2 shows how the heat pipe assembly 10 is used to connect the single heat pipes 21 and 22.
(a) is a side view, (b) is a sectional view taken along the line C-C shown in (a), (c) is a cross-sectional view taken along the line D-D shown in (a). FIG. The arrows in the figure indicate the direction of movement of the heat flux.

That is, the heat pipe assembly 10 combines the single heat pipes 21 and 22 inserted from both ends of the insertion port 11a such that their ends abut each other. Here, the heat transported through the single heat pipe 21 is uniformly transmitted from the condensing part of the heat pipe 21 (the contact surface between the end of the heat pipe 21 and the combined body) to the heat transport chamber 11b of the combined body. In this heat transport chamber flb, the liquid 14 evaporates at the contact portion with the heat pipe 21, that is, the evaporation portion, due to the capillary action of the groove 11c, and the vapor is transferred to the heat pipe 21.
Because it moves to the contact part with 2, that is, the condensation part, and condenses,
Heat transport takes place. The heat transferred to the condensing section of the heat transport chamber 11b is transferred to the heat pipe 22 inside the insertion port 11a.

In this case, since the heat transfer surface of the heat pipe 21.22 is utilized to the maximum as a heat transfer means from the heat pipe 21 to the combined body lO and from the combined body dust to the heat pipe, the heat pipe 21.22 and the combined body Local drying out of the body is less likely to occur, and it is possible to transport an amount of heat close to the maximum heat transport amount of the heat pipe. Further, the temperature difference generated at the joint can be small, and the weight can be significantly reduced compared to the case of using metal fittings or fasteners.

Therefore, by using the heat pipe assembly configured as described above, when the heat pipes are connected, it is possible to efficiently transport heat with a small temperature difference and to prevent drying out.

FIG. 3 shows another embodiment according to the present invention.

(a) is a side view thereof, and (b) is a sectional view taken along line DD in (a).

That is, this heat pipe assembly 23 is for joining the single heat pipes 25.2G along the panel 24, and has a rectangular tubular shape here.

Reference numeral 23a indicates an insertion port, and 23b indicates a heat transport chamber.The heat transport chamber 23b is formed together with a groove 23c so as to surround the insertion port 23a as widely as possible, and the above-mentioned liquid 14 is injected here. . Moreover, the arrow in the figure indicates the direction of heat flux. It does not have to be completely circular like this,
Depending on the shape of the heat pipes to be connected or the usage conditions, the shape can be changed to allow more heat conduction surface.
Effects equivalent to those of the above embodiment can be obtained.

[Effects of the Invention] As described above, the present invention provides a heat pipe assembly that is capable of efficiently transporting heat with a small temperature difference and preventing drying up when the heat pipes are joined. be able to.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing one embodiment of a heat pipe assembly according to the present invention, FIG. 2 is a diagram for explaining the operation of the same embodiment, and FIG. 3 is a diagram showing another embodiment of the heat pipe assembly according to the present invention. The configuration diagrams shown in FIGS. 4 and 5 are configuration diagrams for explaining conventional heat pipe coupling means, respectively. lO... Heat pipe combination, 11... Cylindrical pipe, 11a... Insertion port, llb... Heat transport chamber, li
e... Groove, 12... End plate with injection tube, 12a... Injection tube, 13... End plate, 14... Liquid, 21.22.
... Single heat pipe, 23 ... Rectangular cylindrical heat pipe combination, 23a ... Insertion port, 23b ... Heat transport chamber,
23c...Groove, 23...Panel, 25.28...
heat pipe. 5 animals Figure 1 (a) Figure 3 Figure 5

Claims (2)

[Claims] (1) Using a heat conductive member, an insertion opening is formed that tightly contacts and fixes each circumferential surface of two single heat pipes when inserted, and a heat transport chamber is formed approximately around the insertion opening,
A heat pipe assembly characterized in that a liquid serving as a heat transport medium is injected into the heat transport chamber. (2) The heat pipe assembly according to claim 1, wherein a large number of grooves are formed on the inner surface of the heat transport chamber in the same direction as the insertion direction of the single heat pipe.