TWI609164B - Heat dissipation device - Google Patents

Description

Heat sink

The present invention is a heat sink device, and more particularly relates to a heat sink device for heat dissipation.

With the current gradual appeal of electronic devices, all components must be reduced in size, but the heat generated by the shrinking of electronic devices has become a major obstacle to the improvement of performance of electronic devices and systems. Therefore, in order to effectively solve the problem of heat dissipation of components in electronic equipment, the industry has proposed a Vapor chamber and a heat pipe with better heat conduction performance to effectively solve the current heat dissipation problem.

The Vapor chamber includes a capillary structure in a rectangular shape and a wall surface of the inner chamber of the housing, and the inside of the housing is filled with a working liquid, and one side of the housing (ie, an evaporation zone) Attaching a heat generating component (such as a central processing unit, a north-south bridge chip, a transistor, or other electronic components) to heat generated by the heat generating component, so that the liquid working fluid is evaporated in the evaporation zone of the casing. In the vapor state, heat is transferred to the condensation zone of the casing, and the vaporous working liquid is cooled and condensed into a liquid state in the condensation zone, and the liquid working liquid is again returned to the evaporation zone by gravity or capillary structure to continue the vapor-liquid circulation. In order to effectively achieve the effect of uniform temperature heat dissipation.

The principle and theoretical structure of the heat pipe are the same as that of the temperature equalizing plate. The hollow part of the heat pipe of the circular pipe is filled with metal powder, and a ring-shaped capillary is formed on the inner wall of the heat pipe by sintering. The structure is followed by evacuating the heat pipe and filling the working liquid, and finally closing to form a heat pipe structure. when The working liquid is evaporated by the evaporation portion and then diffused to the condensation end, and the working liquid is in a vapor state in the evaporation portion. When the evaporation portion is separated and diffused toward the condensation end, the liquid is gradually cooled and condensed into a liquid state, and then re-permeated. The capillary structure is returned to the evaporation portion.

Comparing the method of heat conduction between the temperature equalization plate and the heat pipe is different. The heat conduction mode of the temperature equalization plate is two-dimensional, and the heat conduction mode of the surface is used as the average temperature. However, the heat conduction mode of the heat pipe is a one-dimensional heat conduction mode (ie, far End cooling). Therefore, today's electronic components are not suitable for use with a single heat pipe or a uniform temperature plate. Therefore, how to combine the heat pipe and the temperature equalizing plate to have both uniform temperature and remote heat conduction or heat dissipation, in order to greatly improve heat conduction. Efficiency, and effectively solve the heat dissipation problem of high-power electronic components, is currently required by the industry.

Therefore, how to solve the above problems and problems in the past, that is, the creators of the case and the relevant manufacturers engaged in this industry are eager to study the direction of improvement.

Therefore, in order to effectively solve the above problems, an object of the present invention is to provide a tube body supported between the first and second housings, wherein the first and second housings are in communication with the tube body, thereby enabling the first A heat dissipating device having no interface thermal resistance between the two shells and the tube body.

Another object of the present invention is to provide a first and second capillary structure in the first and second housings through a tubular capillary structure in the tube body, so that the cooled working fluid can be recirculated by capillary force and gravity. In order to achieve the effect of improving heat transfer efficiency and uniform temperature, and thus effectively increasing the efficiency of vapor-liquid circulation.

Another object of the present invention is to provide a heat dissipation heat dissipation effect by rapidly dissipating heat energy in the first and second housings and the tube body to the air by assembling the first heat dissipation fin group and the second heat dissipation fin group. Heat sink.

In order to achieve the above object, the present invention provides a heat dissipating device, comprising a first housing having a first chamber and at least one first opening, the first chamber having a first capillary structure, the first opening being connected The second chamber has a second chamber and at least one second opening, the second chamber has a second capillary structure, and the second opening communicates with the second chamber; at least one The tube body has a first extending portion and a first extending portion, and a second opening portion is formed with a second open end and a second extending portion a second through hole, the first extending portion is inserted into the first chamber from the first opening, the second extending portion is inserted into the second chamber from the second opening, and a tube is disposed in the tube body a body chamber and a tube capillary structure; and a working fluid disposed in the first and second chambers and the tube chamber; thereby, the interface between the first and second shells and the tube body is not in contact Thermal resistance improves heat transfer efficiency and temperature uniformity.

100‧‧‧ first housing

101‧‧‧ first opening

103‧‧‧first bottom plate

105‧‧‧First cover

110‧‧‧ first chamber

111‧‧‧First capillary structure

112‧‧‧The inner wall of the first casing

113‧‧‧First flange

200‧‧‧ second housing

201‧‧‧ second opening

203‧‧‧second bottom plate

205‧‧‧second cover

210‧‧‧Second chamber

211‧‧‧Second capillary structure

212‧‧‧The inner wall of the second casing

213‧‧‧second flange

300‧‧‧ tube body

310‧‧‧ tube body

311‧‧‧Body chamber

311a‧‧‧The inner wall of the pipe body

311b‧‧‧ convex

311c‧‧‧ Groove

312‧‧‧ tube body capillary structure

313‧‧‧Cylinder

313a‧‧‧ first top

313b‧‧‧second top

313c‧‧‧ third capillary structure

320‧‧‧First Extension

322‧‧‧ first open end

324‧‧‧ first through opening

330‧‧‧Second extension

332‧‧‧ second open end

334‧‧‧Second opening

400‧‧‧Working fluid

500‧‧‧First heating element

600‧‧‧second heating element

700‧‧‧ installation space

800‧‧‧First heat sink fin set

900‧‧‧Second heat sink fin set

The following drawings are intended to provide a more complete understanding of the invention, and are in the The specific embodiments of the present invention are explained in detail by the specific embodiments herein, and reference to the accompanying drawings.

1 is a perspective assembled view of a first embodiment of a heat sink of the present invention; FIG. 2 is an exploded perspective view of a first embodiment of the heat sink of the present invention; and FIG. 2a is the first heat sink of the present invention Another perspective of the exploded view of the embodiment; 3 is a combined cross-sectional view of a first embodiment of a heat sink of the present invention; FIG. 4 is a partially enlarged cross-sectional view A of the first embodiment of the heat sink of the present invention; and FIG. 5 is a heat sink of the present invention. FIG. 6 is a perspective exploded view of a second embodiment of the heat sink of the present invention; FIG. 7 is a sectional view of the second embodiment of the heat sink of the present invention; 8 is a partial enlarged cross-sectional view C of a second embodiment of the heat sink of the present invention; FIG. 9 is a partially enlarged cross-sectional view D of the second embodiment of the heat sink of the present invention; FIG. 10 is a heat sink of the present invention 3 is a three-dimensional combination diagram of a fourth embodiment of the heat dissipation device of the present invention; and FIG. 12 is a three-dimensional combination diagram of a fifth embodiment of the heat dissipation device of the present invention; Figure 14 is a cross-sectional view showing a fifth embodiment of the heat sink of the present invention; Figure 14 is a plan sectional view showing a sixth embodiment of the heat sink of the present invention; and Figure 15 is a sixth embodiment of the heat sink of the present invention. Sectional view; Figure 16 is the present invention A top cross-sectional view of a seventh embodiment of a heat sink; and a seventeenth embodiment of the heat sink of the present invention.

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.

Please refer to the figures 1, 2, 2a, 3, 4 and 5, which are the perspective view, the exploded view and the exploded view of the first embodiment of the temperature equalizing plate structure of the present invention. Zoom in on section A and A partially enlarged cross-sectional view B, as shown in the figure, the heat dissipating device of the present invention comprises a first housing 100, a second housing 200, at least one tube 300, a working fluid 400; The two housings 100 and 200 are described as a temperature equalizing plate. However, the present invention is not limited thereto, and other equivalents may be used in the specific implementation.

The first housing 100 has a first chamber 110 and at least one first opening 101. The first chamber 110 is defined by a first cover plate 105 and a first bottom plate 103. A first capillary structure 111 is formed in a cavity 110, and the first capillary structure 111 is formed on an inner wall 112 of the first chamber 110. The first capillary structure 111 is preferably a powder sintered body, but It is not limited thereto, and may be selected as a mesh body, a fiber body, a braid or a groove or a combination of the foregoing in a specific implementation. The first opening 101 is disposed in the first cover plate 105 of the first housing 100 and penetrates through the first chamber 110. The first opening 101 in this embodiment is illustrated by one, but Not limited to this, in the specific implementation, the number of the foregoing first openings 101 may be one or more.

The second housing 200 has a second chamber 210 and at least one second opening 201. The second chamber 210 is defined by a second cover 205 and a second bottom plate 203. The second capillary structure 211 has a second capillary structure 211 formed on an inner wall 212 of the second chamber 210. The second capillary structure 211 is preferably a powder sintered body, but It is not limited thereto, and may be selected as a mesh body, a fiber body, a braid or a groove or a combination of the foregoing in a specific implementation. The second opening 201 is disposed in the second bottom plate 203 of the second housing 200 and penetrates through the second chamber 210. The second opening 201 in this embodiment is described as one, but not To be limited thereto, in the specific implementation, the number of the foregoing second openings 201 may be one or more, and the actual number is matched with the number of the first openings 101 of the first housing 100.

The tube body 300 has a tube body 310 and a first extension portion 320 and a second extension portion 330. The tube body 300 is preferably a heat pipe, but is not limited thereto, and may be other equivalents in a specific implementation. Things. The first extension The portion 320 is formed with a first open end 322 and a first through opening 324. The first extending portion 320 is inserted into the first chamber 110 from the first opening 101. The second extending portion 330 is formed with a second open end 332 and a second through opening 334 . The second extending portion 330 is inserted into the second chamber 210 from the second opening 201 . A tubular body chamber 311 and a tubular capillary structure 312 are disposed in the tubular body 310. The tubular body chamber 311 is disposed between the first and second open ends 322 and 332. The tubular capillary structure 312 is formed on the tubular body. The inner wall 311a of the tubular body chamber 311 is on the inner wall 311a. The tube capillary structure 312 is preferably a powder sintered body, but is not limited thereto, and may be selected as a mesh body, a fiber body, a groove, a braid, or a combination thereof in a specific embodiment.

The working fluid 400 is disposed in the first and second chambers 110 and 210 and the tube chamber 311. The working fluid 400 is preferably pure water or methanol, but is not limited thereto, and may be embodied in a specific implementation. Is the other equivalent. Therefore, the first and second housings 100 and 200 and the tubular body 300 of the present invention are integrated into one body, and the first and second chambers 110 and 210 and the tubular body chamber 311 are in a communicating structure, so that the first and second housings 100 are There is no interface thermal resistance between the 200 and the tube 300.

In addition, the first extending portion 320 is inserted into the first chamber 110 from the first opening 101, and the first open end 322 is directly abutting the first capillary on the first bottom plate 103 of the first housing 100. The second opening portion 332 is inserted into the second chamber 210 from the second opening 201, and the second open end 332 is directly abutted on the second cover 205 of the second housing 200. The second capillary structure 211, that is, the first and second extensions 310 and 320 respectively extend into the first bottom plate 103 and the second cover plate 205 in the first and second openings 101 and 201 respectively, so that the first opening is performed. The end 322 is coupled to the first capillary structure 111 on the first bottom plate 103 of the first housing 100, and the second open end 332 and the second capillary on the second cover 205 of the second housing 200 The first and second extensions 320, 330 are the body 310. A part of the inner wall 311a of the first and second extensions 320, 330 is the inner wall 311a of the tubular body 310. Wherein the first and second through openings 324, 334 are respectively The first through hole 324 is opposite to the first chamber 110, and the second through hole 334 is opposite to the second chamber 210, so that the tube chamber 311 passes through the first portion The first and second through openings 324 and 334 are connected to the first and second chambers 311. In the embodiment, the first and second through openings 324 and 334 are illustrated by five, and may be one for each implementation. One or two through ports 324, 334, or other numbers and first and second through openings 324, 334 having equal effects.

In addition, the tubular capillary structure 312 is capillaryly coupled to the first and second capillary structures 111 and 211. As shown in FIGS. 4 and 5, the tubular capillary structure 312 on the inner wall 311a of the tubular body 310 is attached thereto. The first bottom plate and the second cover plate 205 of the first and second housings 100 and 200 are capillaryly connected (or connected to each other) at the first and second open ends 322 and 332 of the first and second extending portions 320 and 330. First and second capillary structures 111, 211 thereon. Here, the term "capillary connection" as used herein means that the pores of the first and second capillary structures 111, 211 are in communication with the pores of the tube capillary structure 312, so that capillary forces can be transmitted or extended from the tube capillary structure 312. To the first and second capillary structures 111, 211, the cooled working fluid 400 can be returned from the second capillary structure 211 to the tubular capillary structure 312 by the capillary force and gravity, and then the first capillary structure 111 is reflowed. In turn, it returns to the first chamber 110.

Therefore, the design of the first and second capillary structures 111, 211 is capillaryly coupled by the tubular capillary structure 312 of the present invention, so that the working fluid cooled in the first chamber 110 can be passed through the tubular capillary structure of the tubular body 300. The capillary force and gravity of 312 rapidly return the working fluid to the second capillary structure 211 in the second chamber 210, or the working fluid cooled in the second chamber 210 can be passed through the tube body of the tube 300. The capillary force and gravity of the capillary structure 312 quickly return the working fluid to the first capillary structure 111 in the first chamber 110, thereby achieving the effect of improving the heat transfer efficiency and the uniform temperature, thereby effectively increasing the vapor-liquid circulation efficiency.

Therefore, when the first bottom plate 103 of the first housing 100 is externally attached to a first heat generating component 500 (such as a central processing unit or an MCU or other electronic component), the first bottom of the first housing 100 The plate 103 absorbs a heat generated by the first heating element 500, so that the inner wall 112 of the first bottom plate 103 of the first casing 100 is heated by the evaporation of the working fluid 400 of the first capillary structure 111 to be evaporated. Working fluid (or vapor working fluid) causes the vaporized working fluid to flow toward the first cover 105 in the first chamber 110, while a portion of the evaporated working fluid also passes through the tubular body 300. The first open end 322 flows into the tube chamber 311, and another portion of the evaporated working fluid flows through the tube chamber 311 into the second chamber 210 of the second housing 200 until the evaporated working fluid is in the The first cover plate 105 of the first casing 100 and the inside of the pipe body 310 and the second cover plate 205 and the second bottom plate 203 are condensed and converted into a cooled working fluid (or liquid working fluid). The cooled working fluid in the second cover 205 and the second bottom plate 203 and in the tubular body 310 is quickly returned to the first chamber 100 by the capillary force and gravity of the second capillary structure 211 and the tubular capillary structure 312. The first bottom plate 103 therein has the first capillary structure 111 thereon This allows the working fluid 400 to continuously vaporize and circulate in the first chamber 110 and the tubular chamber 311 and the second chamber 210 to achieve a better heat dissipation effect.

In addition, the first housing 100 further has at least one first flange 113 adjacent to the circumference of the first opening 101 and upward from a first cover 105 of the first housing 100. The inner wall of the first opening 101 is butted against the inner side of the first flange 113 opposite to the outer side of the first extending portion 320. The second housing 200 further has at least one second flange 213 adjacent to the circumference of the second opening 201 and extending downward from the second bottom plate 203 of the second housing 200. The inner wall of the second opening 201 is butted against the inner side of the second flange 213 opposite to the outer side of the second extending portion 330. The first and second flanges 113 and 213 can effectively increase the bonding area with the pipe body 300, so that the pipe body 300 can be firmly and tightly coupled to the first and second casings 100 and 200.

Please refer to Figures 6, 7, 8, and 9 for a perspective view, a combined cross-sectional view, a partially enlarged cross-sectional view C, and a partially enlarged cross-sectional view D of the second embodiment of the heat sink of the present invention, supplemented by reference to the first Figure, as shown It is to be noted that some of the structures and functions of the present embodiment are the same as those of the foregoing first embodiment, and therefore will not be described herein again. However, the difference between the present embodiment and the foregoing first embodiment is that the first and second through openings 324 The first and second through openings 324, 334 allow the first and second chambers 110, 210 to communicate with the tubular body chamber 311, thereby achieving the same as the first The same effect as the examples.

Please refer to FIG. 10 , which is a perspective combination diagram of a third embodiment of the heat dissipation device of the present invention, and is supplemented with reference to the figures 2, 3, 4, 5, 6, 7, 8, and 9, as shown in the figure. The structure and function of the embodiment are the same as those of the foregoing first and second embodiments, and therefore will not be described herein again. However, the difference between the embodiment and the first and second embodiments is that the second housing 200 is The second cover plate 205 is disposed opposite to the second heat generating component 600, and the first chamber 110 serves as a condensation chamber for the vaporized working fluid, thereby achieving the same as the first and second embodiments described above. The effect. In addition, the first bottom plate 103 of the first casing 100 and the second cover plate 205 of the second casing 200 are respectively attached to the first and second heating elements 500 and 600 (not shown). The same cooling effect.

Please refer to FIG. 11 , which is a perspective assembled view of a fourth embodiment of the heat sink of the present invention, and is supplemented with reference to the figures 2, 3, 4, 5, 6, 7, 8, and 9, as shown in the figure. The structure and function of the embodiment are the same as those of the foregoing first, second and third embodiments, and therefore will not be described again here, but the difference between the embodiment and the first, second and third embodiments is that the first A mounting space 700 is defined between the housing 100 and the second housing 200 and the tube 300, and a first heat dissipation fin set 800 is disposed in the installation space 700. The first heat dissipation fin set 800 The outer side of the first cover plate 105 of the first housing 100 and the outer side of the tubular body 310 of the tubular body 300 and the outer side of the second bottom plate 203 of the second housing 200 are connected by air The first heat dissipation fin set 800 having a large contact area allows the thermal energy of the first cover plate 105 and the second bottom plate 203 and the tubular body 311 to be quickly transmitted to the air, thereby lifting the first and second housings. 100,200 condensation efficiency.

Please refer to Figures 12 and 13 for a perspective view and a combined sectional view of a fifth embodiment of the heat sink according to the present invention, and with reference to Figures 2, 3, 4, 5, 6, 7, 8, and 9, As shown in the figure, the structure of the embodiment is the same as that of the foregoing fourth embodiment, and therefore will not be described herein again. However, the difference between the embodiment and the foregoing embodiment is that when the second housing 200 is When the second cover 205 is not attached to the second heat generating component 600, the second cover 205 of the second housing 200 is further provided with a second heat dissipation fin set 900, and the second heat dissipation fin set 900 is The outer side of the second cover plate 205 of the second housing 200 is connected, and the thermal energy of the second cover plate 205 is quickly transmitted to the second heat dissipation fin set 900 with a large contact area with air. In the air, the condensation efficiency of the first and second housings 100, 200 is increased.

Please refer to Figures 14 and 15 for a top cross-sectional view and a cross-sectional view of a sixth embodiment of the heat sink of the present invention, supplemented by reference to Figures 2, 3, 4, 5, 6, 7, 8, 9, and 12. 13, as shown in the figure, the structure of the embodiment is the same as the first, second, third, fourth and fifth embodiments, and therefore will not be described again here, but the difference between the embodiment and the foregoing is that The inner wall 311a of the tubular body 300 is formed with a plurality of convex bodies 311b. The convex bodies 311b are annularly arranged and axially extended on the inner wall 311a. The convex bodies 311b have at least one groove 311c therebetween, as shown in FIG. The cross-section of the tube 300 is observed to be annularly spaced from each other to form a gear-like shape, but is not limited thereto, and the adjacent protrusions 311b may be arranged non-equally, and the same The groove 311c can also be formed into other shapes, and the capillary structure 312 is formed on the surfaces of the protrusions 311b and the grooves 311c. Since the protrusions 311b and 311c increase the surface area of the inner wall 311a, Therefore, the number of pores of the capillary structure 312 on the surface of the inner wall 311a is also increased, so that the working fluid 400 is at the first Chamber 110 and the tubular body and the chamber 311 to accelerate vapor-liquid circulating within the second chamber 210, to achieve a better heat dissipation effect.

Please refer to FIGS. 16 and 17 for a top cross-sectional view and a cross-sectional view of a seventh embodiment of the heat sink according to the present invention, supplemented by reference to the second, third, fourth, fifth, sixth, seventh, eighth, ninth, and fourth, 13, 14, 15 map, as shown in the figure, this real The structure of the embodiment is the same as the first, second, third, fourth, fifth and sixth embodiments, and therefore will not be described again here, but the difference between the embodiment and the foregoing is that the tube of the tube 300 A cylinder 313 is disposed in the body chamber 311. The cylinder 313 has a first top end 313a and a second top end 313b. The first top end 313a and the second top end 313b of the main body 313 extend into the first and second chambers, respectively. The first bottom plate 103 and the second cover plate 205 of the first and second housings 100 and 200 are connected to the chambers 110 and 210, and a third capillary structure 313c is disposed on the surface of the column body 313, wherein the third capillary structure 313c is preferably a powder sintered body, but is not limited thereto, and may be selected as a mesh body, a fiber body, a braid or a groove or a combination thereof in a specific embodiment, and the third capillary structure 313c is capillaryly coupled. First and second capillary structures 111, 211. The working fluid 400 located in the first and second capillary structures 111, 211 can be recirculated from the third capillary structure 313c in addition to being recirculated from the tubular capillary structure 312, so that the working fluid 400 is in the first chamber 110. The vapor-liquid circulation in the tubular chamber 311 and the second chamber 210 is accelerated to achieve a better heat dissipation effect.

As described above, the present invention has the following advantages compared with the prior art: 1. There is no interface thermal resistance between the first and second shells and the tube body; 2. saving production cost; 3. improving heat transfer efficiency and temperature uniformity Effect; 4. Increase the efficiency of vapor-liquid circulation; 5. Rapidly transfer heat energy into the air.

The present invention has been described in detail above, but the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention. That is, the equivalent changes and modifications made by the scope of the present application should remain within the scope of the patent of the present invention.

100‧‧‧ first housing

200‧‧‧ second housing

300‧‧‧ tube body

Claims (11)

A heat dissipating device comprising: a first housing having a first chamber defined by a first cover and a first bottom plate and at least one first opening; the first chamber having a first a capillary structure, the first opening communicates with the first chamber; a second housing has a second chamber defined by a second cover and a second bottom plate and a second opening defined by the second cover The second chamber has a second capillary structure, and the second opening communicates with the second chamber; at least one tube body has a tube body and a first extension portion and a second extension portion, the first extension Forming a first open end and a first through opening, the second extending portion is formed with a second open end and a second through opening, the first extending portion is inserted into the first chamber from the first opening, The first open end abuts the first capillary structure of the first housing, the second extension portion is inserted into the second chamber from the second opening, and the second open end abuts the second housing The second capillary structure, and the tube body is provided with a tube body chamber and a tube body capillary structure, and the tube body A fine capillary structure and connected to the first capillary structure of the second capillary structure; and in a working fluid disposed in the first and second chambers and the tubular body cavity. The heat dissipation device of claim 1, wherein the first opening is disposed in the first cover of the first housing and the second opening is disposed on the second bottom plate of the second housing . The heat dissipation device of claim 1, wherein the first capillary structure and the second capillary structure are respectively formed on an inner wall of the first chamber and an inner wall of the second chamber The first capillary structure and the second capillary structure are selected as any one of the powder sintered body, the mesh body, the fiber body, the groove, and the braid, or any combination thereof. The heat dissipation device according to claim 1, wherein the capillary structure of the tube body is formed on an inner wall of the tube body chamber, and the capillary structure of the tube body is selected as a powder sintered body, a mesh body, and a fibrous body. Any one of the grooves, and the braid, or any combination of the foregoing. The heat dissipating device of claim 4, wherein the inner wall of the tube body is formed with a plurality of convex bodies, and the annular array of the convex bodies is axially extended on the inner wall, and at least one of the convex bodies is provided. a groove, and the capillary structure is formed on the protrusions and the grooves. The heat dissipating device of claim 1, wherein the tubular body chamber is provided with a cylinder, the cylinder has a first top end and a second top end, and the first and second top ends respectively extend to connect the first a second casing, and a surface of the cylinder is provided with a third capillary structure, the third capillary structure is capillaryly coupled to the first and second capillary structures, and the third capillary structure is selected as a powder sintered body, a mesh body, a groove, Any one or any of the foregoing fibrous bodies and braids are combined. The heat dissipating device of claim 1, wherein the first and second through openings respectively extend through the inner and outer sides of the tubular body, and the tubular body chamber communicates with the first and second cavities through the first and second through openings room. The heat dissipating device of claim 1, wherein the tube chamber is disposed between the first and second open ends. The heat sink of claim 1, wherein the first housing is a temperature equalizing plate. The heat sink of claim 1, wherein the second housing is a temperature equalizing plate. The heat dissipating device of claim 1, wherein the tube body is a heat pipe.