US20100212875A1

US20100212875A1 - Tubular heat dispersing structure

Info

Publication number: US20100212875A1
Application number: US12/390,756
Authority: US
Inventors: Kun-Jung Chang; Ching-Yuan Juan; Kuo-Chun Lin; Ching-Huang Juan
Original assignee: LI-HONG TECHNOLOGICAL Co Ltd
Current assignee: LI-HONG TECHNOLOGICAL Co Ltd
Priority date: 2009-02-23
Filing date: 2009-02-23
Publication date: 2010-08-26

Abstract

The present invention discloses a tubular heat dispersing structure which utilizes tubular channel to contact with the heat source(s) and the heat conductor for restricting the heated air. When the flowing air flows into the channel, it is to produce the flowing naturally, and the heated air flows toward the opening rapidly. Therefore, the structure of the present invention can form air flowing actively for achieving the heat dispersing effect. Besides, the structure of the present invention also can have varied geometric shapes and sizes for corresponding to different shapes of different heat sources and heat conductors, so that a better stacked attachment therebetween can be achieved, thereby saving the cost of building the molds and corresponding to the heat dispersing requirements of various power.

Description

FIELD OF THE INVENTION

The present invention is related to a tubular heat dispersing structure, and more particularly to a tubular channel whose inner structure makes the air therein to produce airflow actively after being heated, so as to increase the effect of heat dispersing.

BACKGROUND OF THE INVENTION

There are three types of heat transmission, conduction, convection and radiation. Conduction utilizes medium to transmit heat from high temperature to low temperature, convection is formed by circular flowing of heated liquid (air or water) which is caused by density variation, and radiation can transmit heat without any medium.
For liquid, the major and most effective manner to transmit heat is convention. Please refer to FIG. 1 and FIG. 2, the conventional heat dispersing structures 1 a, 1 b both employ conduction to perform heat dispersing, so that the structures thereof which have an open-up shape are formed to be similar to fins 11 a, 11 b or a variation thereof, thereby increasing the surface areas contacting the air with the heat dispersing structure as much as possible in the limited space to enhance the heat dispersing effect. However, although this kind of heat dispersing structure 1 a, 1 b can effectively disperse the heat, the dispersing of heat, which is absorbed from the heat source and the heat conductor, still has to be achieved by air flowing around the fins 11 a, 11 b, so that the chock point of heat dispersing efficiency is the air around the heat dispersing structure, not the heat dispersing structure 1 a, 1 b itself. Therefore, it always further employs other accessories, such as, fan, for increasing the flowing of air, thereby achieving the effect of heat dispersing.
Hence, the conventional heat dispersing structure is mainly disadvantageous of:
1. After air around the heat dispersing structure is heated, the density thereof will be changed, so as to cause disordered air flowing direction, thereby many disturbances and vortexes in small range form turbulence, which reduces the efficiency of heat dispersing in the convection manner.
2. The heat from the heat source and the heat conductor are transmitted to fins, and since fins have difficulty to disperse heat immediately, the heat dispersing structure oppositely will cause baking phenomenon.
3. The heat dispersing structure needs to employ external fan for producing airflow and increasing convection.
4. The heat dispersing structure has an open-up shape which can not be expanded by stacking or assembling.

SUMMARY OF THE INVENTION

The object of the present invention is to improve the conventional heat dispersing structure, which does not conform to the character of heat convection of airflow, so as to provide a better heat dispersing effect.
For achieving the object described above, the present invention provides a tubular heat dispersing structure including one or more heat dispersing body, which includes one or more channel therein, wherein the channel is a closed tube with two opening ends, and the opening ends can be cut to have different sectional areas for increasing air flowing and changing the sectional area, and the middle of the channel also can be formed to have heat dispersing holes. Therefore, according to the character of air convection and the principles of hydrodynamics and thermodynamics, the present invention creates a tubular-typed heat dispersing structure.
Theoretically, according to Bernoulli's Law, the smaller the sectional area the liquid passes through, the faster the flowing rate of the liquid, so that the opening ends of the present invention can be regarded as the reduced sectional area, and the flowing rate can be increased.
Moreover, since the heat dispersing medium is air and the heat dispersing manner is convection, through the tubular structure and the fins therein, the produced heat can be gathered in the tube to heat the air therein, so as to change the air pressure inside the tube and cause the air around the opening ends to flow, according to Bernoulli's Law, thereby forming airflow actively. Here, the produced airflow can achieve heat convection, and through the guiding of the tubular channel, the production of turbulence can be reduced and the convection efficiency also can be enhanced.
Furthermore, for cooperating with the installation and the assembling of the heat source and the heat conductor, the structure of the present invention can be designed to have corresponding geometric shape and size for facilitating the attachment thereto, and even, the heat dispersing bodies also can be stacked together to form expansion module for enhancing the effect of heat dispersing. Thereby saving the cost of building the molds and corresponding to the heat dispersing requirements of various power.
Consequently, the present invention is advantageous of:
1. The tubular heat dispersing structure can have heat dispersing holes mounted thereon at positions of better air flowing, so as to enhance air convection.
2. The tubular heat dispersing structure can effectively guide the flowing of air, so as to reduce turbulence, thereby form an environment suitable for air convection.
3. The tubular heat dispersing structure can force the air to flow, which increases heat dispersing efficiency.
4. The tubular heat dispersing structure can be assembled for expansion in accordance with different heat dispersing demands, thereby enhancing the effect of heat dispersing.
5. The tubular heat dispersing structure can be varied according to the positions and shapes of the heat source(s) and the heat conductor to have different geometric shapes and sizes, and even, it can be assembled with the existing heat dispersing structure for improving the heat dispersing efficiency thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

The foregoing aspects and many of the attendant advantages of this invention will be more readily appreciated as the same becomes better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a three-dimensional view showing one kind of conventional heat dispersing structure;

FIG. 2 is a three-dimensional view showing another kind of conventional heat dispersing structure;

FIG. 3A is a three-dimensional view of the present invention;

FIG. 3B is a sectional view of line 3B-3B in FIG. 3A;

FIG. 4 is a schematic view showing the assembling of the present invention with single heat source and heat conductor;

FIG. 5 is a schematic view showing the assembling of the present invention with plural heat sources and heat conductor;

FIG. 6 is a schematic view showing the right-angled opening and lateral heat dispersing holes of the present invention;

FIG. 7 is a schematic view showing the V-shaped openings and heat dispersing through holes of the present invention;

FIG. 8 is a schematic view showing the vertical-cut opening and the stacking manner of the present invention;

FIG. 9 is a schematic view showing the inclined-cut opening and the stacking manner of the present invention;

FIG. 10 is a schematic view showing the present invention applied to an LED lamp set for heat dispersing in a preferred embodiment;

FIG. 11 is a schematic view showing the expansion module of the present invention in a first embodiment;

FIG. 12 is a schematic view showing the expansion module of the present invention in a second embodiment; and

FIG. 13 is a schematic view showing the expansion module of the present invention in a third embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENT

Please refer to FIGS. 3A, 3B, 4 and 5. When utilizing the tubular heat dispersing structure of the present invention, one or more heat sources and heat conductor 3 are attached to the outer circumference of the heat dispersing body 1, and through air convection, the heat from the heat sources and the heat conductor can be taken away. The present invention includes one or more heat dispersing body 1, which includes one or more channel 11 therein, wherein the channel 11 is a hollow tube with a section of closed geometric figure; plural fins 12 mounted on the inner surface of the channel 11 along the longitudinal direction of the channel 11; and openings 13 respectively mounted at two ends of the channel 11, so as to form the channel 11 passing through the heat dispersing body 1.
Please refer to FIG. 6 and FIG. 7. When using the tubular heat dispersing structure of the present invention, in accordance with the environment and airflow condition, the heat dispersing body 1 can be formed to have a triangle opening 131 or V-shaped opening 132 for enhancing the effect of heat dispersing or sealing. Further, it also can additional form lateral heat dispersing holes 14 or heat dispersing through holes 15 at a position which provides better air flowing, so as to increase heat dispersing effect.
Moreover, as shown in FIG. 8, when the heat source(s) and the heat conductor 3 have more heat dispersing requirements, the heat dispersing bodies 1 with right-angled opening 13 can be stacked together for expansion, so as to form an expansion module 21. Alternatively, as shown in FIG. 9, the heat source(s) and the heat conductor 3 also can use a tapered expansion module 22, which is assembled by heat dispersing bodies 101 with inclined opening 133 and a material of low heat resistance, such as tin.
Please refer to FIG. 10, in this embodiment, the tubular heat dispersing structure of the present invention is applied to an LED lamp set 31 with heat source and heat conductor 3. After the base of the LED lamp set 31 is fixed on the heat dispersing body 1 by locking elements 32, such as screws, the heat produced by the LED lamp set 31 can be transmitted to the heat dispersing body 1 and then dispersed by the heat dispersing body 1 via air convection. Here, through cooperating with another heat dispersing body 102 with lateral-cut opening 134 to form expansion module 2, the heat dispersing effect can be enhanced.
Furthermore, please refer to FIG. 11. For cooperating with heat source(s) and heat conductors 3 of different shapes and sizes, the section shape of the heat dispersing body 103 also can be varied to have shapes and sizes of different geometric figures, so that after assembling by circular stacking and low heat resistance material, such as tin, plural heat dispersing bodies 103 can form an expansion module 23. Alternatively, for cooperating with the heat source(s) and the heat conductor 3, the heat dispersing bodies 104 can be stacked in a honeycombed manner so as to form an expansion module 24 (as shown in FIG. 12). Besides, if plural heat dispersing bodies 1 and 104 are assembled together by low heat resistance material, such as tin, as shown in FIG. 13, another kind of expansion module 25 can be formed.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims

1. A tubular heat dispersing structure, comprising one or more heat dispersing body, which includes one or more channel, wherein the channel is a tube with two openings respectively at two ends thereof and penetrating the heat dispersing body.

2. The tubular heat dispersing structure as claimed in claim 1, wherein the heat dispersing body has plural fins mounted on the inner surface thereof along the longitudinal direction of the channel.

3. The tubular heat dispersing structure as claimed in claim 1, wherein plural heat dispersing bodies are assembled together by stacking to form an expansion module.

4. The tubular heat dispersing structure as claimed in claim 1, wherein the section shape of the heat dispersing body is varied according to the shape of a heat source and a heat conductor to have a geometric shape and size.