JPS5883184A - Heat pipe - Google Patents

Abstract

PURPOSE:To enhance heat response property and reduce loss, by a method wherein a heat pipe is provided with one pipe end surface as a heat input surface and the other pipe end surface as a heat output surface, flat inside surfaces of both end sealing plates are reinforced by a plurality of parallel fins, and ends of grooves formed between the fins make contact with the inside wall of a heat pipe container. CONSTITUTION:The end sealing plate 1 on the heat output surface side and the end sealing plate 2 on the heat input surface side which constitute both ends of the heat pipe container 3 are constituted of a plurality of parallel fins, the plate 1 makes contact with a heat sink 6, and the plate 2 makes contact with a heating element 8. A hollow pipe 4 is provided between the end sealing plates 1 and 2 to reinforce the plates 1, 2 and promotes the recirculation of a working fluid. Since the parallel fins are used as end sealing plates, heat-exchanging efficiency is enhanced, flow resistance of the fluid is reduced, and the recirculating speed of the fluid is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat pipe structure in which both end surfaces of the heat pipe serve as heat exchange planes.

Both sides of the heat pipe are 1,411 mkJ, and the support plate is a flat plate to withstand the decompression during the production of the heat pipe and the sieving of the steam during operation, and to stick the wood at both ends of the heat pipe. , made of a flat metal plate with good heat transfer properties within the thickness.

However, this parable 7 is used as 101, and the number of operations in the heat pipe response device is 1. Heat loss from Taniki Kooda 1, which is part way through the Mikkiya cycle, has become a problem in implementing efficient heat exchange.

The present invention aims to provide a conventional structure for improving these points.

In addition, when using the end face of a heat pipe, which has a large surface area compared to its length, as a silent exchange plane in the state of manual heating, the upper half of the heat output is liquefied with oil, which causes the operation that occurs. If a portion of the liquid is applied to the end of the hook stop plate 141 to prevent steam in the center of the container, and pressure is applied, the sealing plane may be destroyed and the contact thermal resistance may increase.

The heat vibrator according to the present invention can also be used in these installations.

The structure and operating bed of the heat vibrator according to the present invention will be described with reference to the following figures.

Figure 4 shows both Qm 1111 due to the conventional heat vibrator.
There is a side view showing the operating status of the place name, which has been changed by one as k-mokukyo m1. 1 and 2 in the figure are the double-ended d sealing plates of the heat vibrator 26. "Heat input/output", ■ becomes "11" in the month of fever onset.

3 Phantom, Container, ■5 is Wick. 5 is a working fluid injector 11', which reduces the pressure in the air conditioner to a vacuum through the thin tube when forming the heat pipe, and assists in applying the working number of injection waves. 6
The heat sink absorbs the heat energy from the heat vibe. 7 is a ceramic substrate, and 8 is a photothermal element mounted on the substrate, which supplies thermal energy to the heat vibrator and is cooled. In this case, the following volume problem occurs in the operation of a one-length heat vibrator as shown in the figure.

(a) Because the plates do not reach both ends, the thermal response is poor.When forming the heat pipe, it is necessary to maintain the vacuum and the internal pressure of the working fluid during operation, so it is not possible to use normal heat pipes. The heat vibrator has a container wall thickness of 0.8~1.0 wn with sealing plates at both ends 2~
It was produced in three cabinets.

(b) When the suppression is increased in order to reduce the thermal resistance, the sealing plate at both ends Vi makes a noise, and on the contrary, a gap is created on the heat output side and the heat input 11fl as shown in 1b and 17 in the figure, increasing the thermal resistance. If you use force/melt.

Since the sealing flat 4Il of the P-1 heat output section has a small operating number retention force, when the vertical 11 is installed, a part of the eternal working fluid drips inside the operating steam path 12 as shown in 13 in the figure. It disturbs the steam TFL/L function and lowers the silent contract effect 4S to a low F.

) The half plate h■ of the heat input part is filled with hydraulic fluid gland 1 during operation.
Covered by 7nl This increases the thermal resistance due to VC and lowers the steering angle.

(The presence of a wick on the inner wall of a container reduces the starvation rate of the hydraulic fluid even when it is used vertically or horizontally.) This only increases the heat loss due to radiation from the container wall and lowers the heat exchange efficiency, which is not beneficial.

(f) When using the container as a heat input/output surface, the heat output is 95. 1, heat exchange 1, extremely small and ineffective! l! ! +If the planarity is enlarged as shown in FIG. 4 due to the enlargement of FIG. 1, the intervolume set point described by SiJ will become worse.

In particular, the anti-pressure force of the sealing flat plate is decreasing more and more, and if the wall thickness is increased to prevent this, the thermal resistance increases.

It can be seen that the above-mentioned conventional heat vibrator is completely unsuitable for use as a heat exchange element with the 1II11 end face as the heat input/output plane.

Figures 1, 2, and 3 show examples of the structure of a heat vibrator and its application, which improve the shortcomings of the conventional heat vibrator due to both end faces as described above. This is an example fc @ view. The first evil is that Chaos 1 is active at the time of marriage? Figure 2 is a sectional view taken along line A-A of Figure 1, Figure 3 is a sectional view, and Figure 3 is a cross-sectional view of
, B-H'l'l;Ir'rfl1 diagram of Figure 2, b.

All four numbers in the figure are the same as in Figure 4.

The differences between each figure and the conventional heat vibrator shown in FIG. 4 are as follows. [X
For goldfish, there are three points: (a) a change in the structure of the half-plate for stabbing, (b) an improvement in the container, and () → hollow tube for insects in the sleeve. It is clear that the basic features of the sound heat vibrator are the V of the stabbing half plate, which is based on the current structure, and the other two points are based on the publicly known conventional technology, but the basic features of the stabbing half plate are Beautiful composition i Blue and net 1
In combination, it improves the heat pipe's properties to NQk and width, which is good in length υ.
The heat output of the heat vibrator is characterized by the heat output of the heat vibrator, which has a heat output of 1, 1 and 1, and a subcliffin of the 2, which is flat and flat.

The parallel fin analysis has a large number of parallel 1j grooves ih of the shape 11 shifted, and it is the cheap skin 8+ of the ￥i − internal chain side number of the interlocking half plate within the thickness of 100 minutes. Due to the arrangement, it is impossible to imagine that a large number of rows of fins are formed in each case. The parallel grooves can be immovable enough to accommodate as many fastening shafts as possible, but in the case of a half plate for stabbing in a copper heat bike, the width is about 0.5 rtm, and the width is about 1++II++ except for 5 positions. The actual dimensions are 9, the width is 1, and the 6 is 1. The deeper the quarry, the deeper the quarry. The valley is in contact with or close to the inner wall of the container, causing the opening to escape. It is desirable that the thickness of the sealing plate in the lower part of the disease be formed as thin as about 11 subpositions. The effect of the sealing plate that intersects with the many parallel fins is as follows.

(a) Sealing flat plate! 18tt roux increases to 11 to pressing force
υ" to minimize the amount of burnt food. Therefore, the pressing force is increased to completely reduce the thermal contact resistance when connecting the 1,000 faces by pressure. The reinforcing effect of the parallel fins on the pressing force is the strongest that cannot be found in other wick structures.

(b) The heat absorption area and heat radiation area of the pinning half plate in p1 inside the container are increased several times, and the heat exchange efficiency is completely increased.

()'1 Parallel fine fins are strong and at the same time, compared to other glue wicks, there is no turbulence noise in the operating flow channel, and the flow resistance is extremely small. Therefore, in terms of heat output, the working fluid cooled and liquefied in the fin circle moves extremely quickly to the atmosphere inside the container, causing the open end of the space to flow.
It is sealed and the illusion inside the container [flows in the river]. Also, heat output surface 11
N bed on 1” and rice dasaku! The hII liquid is rapidly absorbed from the mouth and rapidly absorbed by Finn's blood terminal tree.
It diffuses onto the inner surface of the stop plate and evaporates. ν IJ - A parallel fine fin group is cut out from the 1 and a half plates Q to 4 (1 ladle) The operating speed is 14 faster than the moving table that counts 4 wicks, thereby improving thermal efficiency. I can do it.

2) Parallel fine fins 8 + Hamatano]; The floor collapses in wealth, and it forms the right 10, so the heat input is 1! @I Middle Conte 2 Fast flow from Uchiken and Komerusaku vJ Kazumaru heat exchange Kyouhei 1r1
In addition to rapidly absorbing and diffusing the fish, it is also helped by the fact that the fish develops very quickly, and the number of actuations is 0, and the heat input per 1 meter is 1 IIl, with almost no gain in the capsule between the fins.
The inner surface of the flat plate of J is not covered by a film of hydraulic fluid. Therefore, the occurrence of thermal resistance due to the working fluid film is small, and the silent exchange efficiency is greatly improved. In conventional heat pipes, the working fluid holding capacity and transfer force are extremely weak, so if a part of the working fluid drips into the steam passage and the steam movement is completely blocked, the heat exchange characteristics deteriorate. When a wick is also used, if the working fluid transfer force of the wick is exceeded and the working fluid vapor is liquefied, the working fluid will similarly drip in the steam passage, reducing the heat transfer ability of the heat pine. The parallel fine groove group formed by the parallel fine fin group according to the present invention has the effect of condensing the working fluid and quickly transferring it to the inner wall of the container, preventing dripping of the working fluid and preventing a drop in heat transfer. This action and effect is even more effective when the thin fins 8+are formed in a dome shape within the entire container.

As mentioned above, the fine and deep fins and grooves of the heat pipe A (uniform structure) to keep the heat pipe from igniting (non-explosion) simply serve to reinforce the end bending plate and act as a wick. The heat pipe of the present invention has a heat transfer capacity that is far superior to that of the American type heat pipe. Although it is said to be a sign to do something like this, it is possible to make more effective use of its effects depending on the use of the technique of ``v1''.Chapter 4 The hollow tube branch 4 shown in Figures 1, 2 and 3 is an example of this.1j1- In the fang-shaped heat pipe,
H°4 construction with a branch in the container is often used, but when used in combination with the J stop plate according to the present invention, various effects and effects will occur depending on the interaction, and the present invention This improves the property of the heat pipe, t4'Fi, which is maintained at Its effects are as follows.

(a) Reinforcement applied to the fixed plate by the parallel fins (1) will help to increase the resistance (I+' pressure) and reduce the thermal resistance of the heat exchange plane +1' fl at both ends that goes into the press connection. .

(b) Thermal output side l: l, 1 The working fluid circulation from the inner plane of the flat plate to the inner plane of the heat input plate 111] improves the thermal response speed, and heat +: Improve your mortality rate.

←1 The hollow tube support wall (the number of refluxing rivers is '4 + the shadow of the outside atmosphere 4i1 is completely eliminated, and the heat dissipation loss is lower than that of a conventional heat pipe that recirculates only the inner wall surface of the outer tube). Very few.

(2) When used in a horizontal installation ++1ffi In conventional heat pipes, only a part of the circumference of the outer tube contains the working liquid, which is unevenly refluxed, and the inflow of the working liquid at the heat input plane 1111 evaporation plane is also uneven, resulting in evaporation. However, if hollow tube supports are also used, the inside of the hollow tube also becomes a working fluid return path. The uneven distribution of the working fluid on the plane is alleviated, the deterioration of the working fluid return path is prevented, and the heat exchange efficiency is improved.

(e) The hollow tube support is completely independent from the outside atmosphere of the heat vibrator and is directly connected to the heat output plane and the heat input plane, so the heat exchange of the heat pipe can be carried out by Kanahashi Heat Transfer Specialist. In addition, it provides the same effect as expanding the internal curved ram with both ends restraints.

When a hollow tube support is provided inside the heat pipe according to the present invention, many effects are added as a synergistic bed as described above. /le in Figures 1, 2 and 3
The adoption of the wickless container 3 in the outer tube container shown in FIG. ;i]f1
When using it as a 'H heat pipe, use a Wickless heat pipe or Wick 41! It is well known that Hakujikago is significantly lower than Heat Bike. In the case of wickless, this is the heat absorbing garment II inside the container.
This is theoretically natural due to the fact that the IJI is small, the thermal resistance increases due to the formation of a working fluid film, and the distribution of the working fluid on the inner wall surface of the container is large. However, in the case of a heat pipe having both 14 sealed flat surfaces and heat output surfaces, such as the heat pipe according to the present invention, the required structure and role of the container surface and inner surface are completely different, and the shape and shape of the container are completely different. It can be said that it is Wick, and it has become a harmful and useless existence. The functions and effects of the wickless container are as follows.

(a) Since it is wickless, the 1st liquid manufactured by M115It moves the direction of the inner wall of the valley container with the lowest fluid resistance from the heat output end to the heat input end through the nearest passage, so it is less effective than the wick type. The operating reflux rate increases to 1J, and the thermal response speed increases.
dog 1].

(b) Since the operation 111L speed of the valley device ξ is fast, the capillary action of the fine fin group and groove group according to the present invention is facilitated, and the cycle time of the hydraulic fluid U#L'v as a whole is also long. The heat *4 transfer capacity is shortened to J9 plus 2. .

(c) Since it is a wickless container, there is less heat dissipation due to the thermal resistance of the working fluid film on the container wall, and there is no expansion of the heat absorption/dissipation ratio due to the wick, so there is less heat dissipation than with conventional heat pipe containers. Heat radiation is reduced even though the amount of time it takes for the container to pass through the entire inner wall surface of the container is extremely short, and overall there is less heat loss due to heat radiation from the surface of the container. However, because the flow of production and support is easy and the return speed is fast, the heat transfer capacity is less than that of conventional heat pipes. In this case, the operating energy flows only around the lower half of the container, and flows unevenly into the heat input area, but the excellent capillary action of the parallel fine fins and grooves maintained in the present invention immediately disperses this evenly. Since it is homogenized and evaporated rapidly, it does not cause IHJ problems.

(e) Since it is wickless, the effective volume inside each vessel increases, and the movement of the working liquid vapor is extremely easy, resulting in good thermal response.

As mentioned above, the functions and effects of the wickless container 3 shown in each figure are also extremely large. The effects of the present invention characterized by the structure of the flat plate sealed at both ends of the heat pipe are synergistic with the many effects of the hollow tube support and the wickless container, and the heat pipe according to the present invention is an end face heat exchange type heat pipe. This improves the performance of

[Brief explanation of drawings]

Fig. 1 is a sectional view showing one embodiment of the refrigerator invention, and Fig. 2 is a cross-sectional view showing one embodiment of the refrigerator invention.
A cross-sectional view taken along line A-A' in the figure, and Figure 3 is E-B' in Figure 2.
Line break J map, 4th ν111 first-rice example is shown in the 11th river map. 1... Temporary heat input Uin sealing, 2... Decoction no Tsukiri n-
13 Stop plate, 3... Container, 4... Hollow tube support, 5
...Made i# liquid injection thin tube, 6...heat sink, 7.
...Ceramic substrate, 8 heating elements.

Claims (3)

[Claims] (1) A heat pipe in which the outer planes of both end sealing parts, which are the end faces of the heat pipe, are a thermal power plane and a heat output plane, respectively, and the inner plane of 1-q earth plane A 1v of the JJ stop part of the placed end A large number of parallel fins t4q have a group of parallel grooves of the shape Jα.
; Reinforced by ), the fin group forms i + J <
The ends of each groove of s a + □ are opened in contact with or in close proximity to the inner wall of the heat pipe container), which is an all-organic heat pipe. (2) The stabilizing plate reinforced with a large number of parallel fin groups is similar to the heat nozzle described in Claim No. IJJ: tVC by the hollow tube support. . (3) The heat pipe according to claim 1, wherein the condenser is a vertically installed type in which the condenser is a wickless hollow tube.