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Patent application title:

HEAT PIPE STRUCTURE OF A HEAT RADIATOR

Publication number:

US20090050305A1

Publication date:
Application number:

11/844,946

Filed date:

2007-08-24

Abstract:

The present invention provides a heat pipe structure of a heat radiator, which includes two vertically protruded radiating portions and heat-absorbing portions at a bottom of the two radiating portions. The heat-absorbing portions are assembled onto the heat-conducting pedestal. Two turning portions are formed at the intersection of the heat-absorbing portions and two radiating portions. The heat-absorbing portion has a curved shape. The heat-absorbing portions of adjacent heat pipes are misaligned, such that the turning portion of the heat-absorbing portion of one heat pipe aligns with the recessed space of the other heat pipe. A minimum of heat pipe assembly space obtains a maximum heating area, thus greatly improving the heat-radiating effect and reducing the manufacturing cost with better applicability and economic efficiency.

Inventors:

Assignee:

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Classification:

  1. Mechanical engineering
  2. Heat exchange in general

F28D15/0233 »  CPC main

Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular

F28D15/0275 »  CPC further

Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores

H01L23/427 »  CPC further

Details of semiconductor or other solid state devices; Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements; Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling Cooling by change of state, e.g. use of heat pipes

H01L23/3672 »  CPC further

Details of semiconductor or other solid state devices; Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements; Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks; Cooling facilitated by shape of device Foil-like cooling fins or heat sinks

H01L2924/0002 »  CPC further

Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by; Technical content checked by a classifier Not covered by any one of groups , and

H01L2924/00 »  CPC further

Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by

F28F1/30 IPC

Tubular elements; Assemblies of tubular elements; Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element

Description

CROSS-REFERENCE TO RELATED U.S. APPLICATIONS

Not applicable.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable.

NAMES OF PARTIES TO A JOINT RESEARCH AGREEMENT

Not applicable.

REFERENCE TO AN APPENDIX SUBMITTED ON COMPACT DISC

Not applicable.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a heat radiator, and more particularly to a heat radiation with an innovative heat pipe structure.

2. Description of Related Art Including Information Disclosed Under 37 CFR 1.97 and 37 CFR 1.98

The heat radiator of the present invention permits a preset quantity of heat pipes to be assembled onto a heat-conducting pedestal. Each heat pipe is also fitted with some fins to improve the radiating efficiency.

The typical structure of a heat radiator is depicted in FIG. 1, wherein the heat pipes 20 on the heat-conducting pedestal 10 are defined into two vertically protruded radiating portions 21, and straight heat-absorbing portions 22 at the bottom of two radiating portions 21. The heat pipes 20 are arranged in parallel.

However, the following shortcomings are observed in actual applications. Owing to a smaller heating area of a straight heat-absorbing portion 22 of the heat pipe 20, the heat-conducting pedestal 10 shall be expanded if you intend to increase the length and area of heat-absorbing portion 22. This will bring about higher manufacturing costs and assembly area, making it difficult to put into service, let alone the limitations of radiating objects (CPU) and assembly space. Moreover, the heating area could be increased by adding a number of heat pipes 20, but this will lead to higher costs. The straight heat-absorbing portions 22 of heat pipe 20 play a relatively smaller role in heat radiation.

Thus, to overcome the aforementioned problems of the prior art, it would be an advancement in the art to provide an improved structure that can significantly improve efficacy.

Therefore, the inventor has provided the present invention of practicability after deliberate design and evaluation based on years of experience in the production, development and design of related products.

BRIEF SUMMARY OF THE INVENTION

Based upon the innovative present invention, the heat pipe structure of a heat radiator has heat-absorbing portions designed into a curved shape and is also misaligned, so that the minimum heat pipe assembly space could maintain a maximum heating area. As compared with typical heat pipe structures of the prior art, the curved heat-absorbing portions of the heat pipe could yield multiplication of the heat-absorbing effect (e.g. -shaped heat-absorbing portion versus typical straight heat-absorbing portion), thus greatly improving the heat conduction and reducing effectively the manufacturing cost of heat pipe. Furthermore, the heat-absorbing portions of adjacent heat pipes are misaligned, so the assembly space for a plurality of heat pipes could be minimized to meet the trend of miniaturized product design. It is learnt that the overall design of the present invention could improve significantly the radiating effect of heat pipes, reduce the manufacturing cost and yield better industrial performance.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 shows a perspective view of a typical prior art structure.

FIG. 2 shows a perspective view of the preferred embodiment of the present invention.

FIG. 3 shows a top plan schematic view of the preferred embodiment of the present invention.

FIG. 4 shows a top plan schematic view of another application of the present invention.

FIG. 5 shows a side schematic view of another application of the present invention.

FIG. 6 shows a top plan schematic view of a first variation on the heat pipe's heat-absorbing portion of the present invention.

FIG. 7 shows another top plan schematic view of a second variation on the heat pipe's heat-absorbing portion of the present invention.

FIG. 8 shows another top plan schematic view of a third variation on the heat pipe's heat-absorbing portion of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.

FIGS. 1-3 depict preferred embodiments of heat pipe structure of heat radiator of the present invention. The embodiment are provided only for explanatory purposes. The heat pipes 30 of a preset quantity are assembled at intervals on a heat-conducting pedestal 40. Each heat pipe 30 comprises two vertically protruded radiating portions 31, and heat-absorbing portions 32 at a bottom of the two radiating portions 31. The heat-absorbing portions 32 are assembled onto the heat-conducting pedestal 40. Two turning portions 33 are formed at the intersection of the heat-absorbing portion 32 and two radiating portions 31. The radiating portion 31 is also fitted with heating fins 50 with predefined quantity.

The feature of the present invention includes the heat-absorbing portion 32 in a curved shape to form a recessed space 34.

Also, the heat-absorbing portions 32 of two adjacent heat pipes 30 are staggered, namely, the turning portion 33 of heat-absorbing portion 32 of one heat pipe 30 aligns with the recessed space 34 of the other heat pipe 30.

Two turning portions 33 of heat-absorbing portions 32 of said heat pipe 30 are flushed correspondingly. Referring to FIG. 3, the turning portions 33 of heat-absorbing portions 32 are located at the broken lines L1, L2. Referring also to FIG. 4, the turning portions 33 of heat-absorbing portions 32 are misaligned (namely, located on the broken lines L1, L2).

The protruding ends 310 of said radiating portions 31 are flushed as shown in FIG. 2 or staggered as shown in FIG. 5. The heating fins 50 could be arranged unevenly or independently.

The curved heat-absorbing portion 32 of the heat pipe 30 is provided with a U-shaped pattern (shown in FIGS. 2, 3); or the heat-absorbing portion 32B is provided with a semi-circular pattern as shown in FIG. 6. Alternatively, the heat-absorbing portion 32C is provided with a -shaped pattern as shown in FIG. 7; or the heat-absorbing portion 32D is provided with a V-shaped pattern as shown in FIG. 8.

Claims

1. A heat pipe structure of a heat radiator, comprising:

a heat-conducting pedestal; and

a plurality of heat pipes of a preset quantity, said heat pipes being assembled at intervals on said heat-conducting pedestal, each heat pipe comprising two vertically protruded radiating portions, and heat-absorbing portions at a bottom of the two radiating portions, the heat-absorbing portions being assembled onto said heat-conducting pedestal, the heat-absorbing portions and the two radiating portions forming two turning portions at an intersection thereof, said heat-absorbing portions being a curved shape to form a recessed space, said heat-absorbing portions of two adjacent heat pipes being staggered; such that a turning portion of a heat-absorbing portion of one heat pipe aligns with a recessed space of the adjacent heat pipe.

2. The structure defined in claim 1, wherein each heat-absorbing portion has U-shaped, semi-circular, -shaped and V-shaped patterns.

3. The structure defined in claim 1, wherein said two turning portions are flushed correspondingly or misaligned.

4. The structure defined in claim 1, wherein the radiating portions have protruding ends flushed or staggered.

5. A heat pipe structure of a heat radiator, comprising:

a heat-conducting pedestal; and

a plurality of heat pipes of a preset quantity, said heat pipes being assembled at intervals on said heat-conducting pedestal, each heat pipe comprising two vertically protruded radiating portions, and heat-absorbing portions at a bottom of the two radiating portions, the heat-absorbing portions being assembled onto said heat-conducting pedestal, the heat-absorbing portions and two radiating portions forming two turning portions at an intersection thereof, said heat-absorbing portion having a curved shape.

6. The structure defined in claim 5, wherein said heat-absorbing portion has U-shaped, semi-circular, -shaped and V-shaped patterns.

7. The structure defined in claim 5, wherein said two turning portions are flushed correspondingly or misaligned.

8. The structure defined in claim 5, wherein the radiating portions have protruding ends flushed or staggered.

Resources

Images & Drawings included:

Fig. 01 - HEAT PIPE STRUCTURE OF A HEAT RADIATOR
Fig. 01
Fig. 02 - HEAT PIPE STRUCTURE OF A HEAT RADIATOR
Fig. 02
Fig. 03 - HEAT PIPE STRUCTURE OF A HEAT RADIATOR
Fig. 03
Fig. 04 - HEAT PIPE STRUCTURE OF A HEAT RADIATOR
Fig. 04
Fig. 05 - HEAT PIPE STRUCTURE OF A HEAT RADIATOR
Fig. 05
Fig. 06 - HEAT PIPE STRUCTURE OF A HEAT RADIATOR
Fig. 06

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