Blank capable of shortening length of invalid end of heat pipe

Abstract

The utility model relates to the field of radiators, and particularly discloses a blank capable of shortening the length of an invalid end of a heat pipe, which comprises a pipe body to be processed, the pipe body comprises an effective section and an invalid end, and an opening of the invalid end is outwards inclined and expanded to form a trumpet shape. The length of the ineffective end of a common heat pipe is about 10 mm, and after the ineffective end of a blank is optimized, the length of the ineffective end can be shortened to about 6 mm. In combination with the thickness of the fins and the distance between every two adjacent fins being 1-2 mm, 1-2 fins can be added after the fins are vacated by the length of 4 mm, so that the heat dissipation area is increased, the heat dissipation effect is improved, and the heat dissipation area is increased by 3-5%.

Description

Technical Field

[0001] The utility model belongs to the field of radiators, and particularly relates to a blank capable of shortening the length of an ineffective end of a heat pipe. Background Art

[0002] With the development of chip technology, the wattage required by chips increases year by year, and the heat dissipation demand is also getting higher and higher. If you want to increase the heat dissipation effect of the radiator, the most convenient way is to increase the area of ​​the heat dissipation fins. To increase the area of ​​the heat dissipation fins without changing other conditions, you can only increase the effective length of the heat pipe and let the heat pipe pass through more heat dissipation fins.

[0003] Heat pipes generally include an effective section and an ineffective end. There is no capillary structure inside the ineffective end, which is the sealing position. After the heat pipe is evacuated, the boiling point of the internal working fluid is lowered. The vacuumized product needs to be sealed. Due to welding factors, the heat pipe needs to reserve an idle area of ​​about 10mm for sealing, thus forming an ineffective end. The thickness and spacing of the heat sink fins are 1-2mm. If the length of the ineffective end can be shortened and then several heat sink fins are added, the heat dissipation effect of the radiator can be improved.

[0004] Existing heat pipes mainly use a clamping mold to clamp the end of the blank to make it fit tightly to the inner wall, then cut off the excess end to form a seal, release the clamping mold, and enter the welding process to finally make a heat pipe. Due to welding factors, the length of the ineffective end of a general heat pipe is about 10mm. Utility Model Content

[0005] The utility model aims to provide a blank with good molding effect and capable of shortening the length of the ineffective end of a heat pipe.

[0006] To achieve the above purpose, the utility model provides a blank capable of shortening the length of the ineffective end of a heat pipe, comprising a pipe body to be processed, wherein the pipe body comprises an effective section and an ineffective end, wherein the opening of the ineffective end is inclined and expanded outward and forms a trumpet shape.

[0007] As an improvement of the above solution, the inclination angle of the slope of the ineffective end is 40-60°.

[0008] As an improvement of the above solution, the wall thickness of the tube body is 0.3-0.7 mm.

[0009] Compared with the existing technology, the utility model has the following beneficial effects: the length of the invalid end of the general heat pipe is about 10mm. After optimizing the invalid end of the blank, the length of the invalid end can be shortened to about 6mm. Combined with the thickness of the fin sheet and the spacing between two adjacent sheets of 1-2mm, the 4mm length can be freed up to add 1-2 more fin sheets, thereby increasing the heat dissipation area and improving the heat dissipation effect, and the heat dissipation area is increased by 3-5%. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of a blank before processing in an embodiment;

[0011] Figure 2 is a schematic diagram of a blank after processing in an embodiment;

[0012] Figure 3 It is a schematic diagram of the blank before processing in a traditional embodiment.

[0013] Explanation of main reference numerals: 10, valid segment; 20, invalid end. DETAILED DESCRIPTION

[0014] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0015] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0017] Reference Figure 1 and Figure 2The utility model discloses a blank material capable of shortening the length of the ineffective end 20 of a heat pipe, comprising a pipe body to be processed, wherein the pipe body comprises an effective section 10 and an ineffective end 20, wherein the opening of the ineffective end 20 is inclined outward and expands to form a trumpet shape. Figure 3 , which is a schematic diagram of a traditional blank. Since the ineffective end 20 is processed into a trumpet shape in advance in this scheme, with the horizontal axis as a reference, Figure 1 The length of the inactive end 20 in the middle tilt state is greater than Figure 3 The length of the ineffective end 20 in the horizontal state, the extra length of the ineffective end 20 can provide more processing area, that is, the mold has enough processing surface when clamping and welding the ineffective end 20, and there is no need to occupy the length of the effective section 10, thereby reducing the consumption of the length of the effective section 10.

[0018] In the making Figure 1 When the blank is Figure 3 Based on the blank in the process, a hole expansion process is added to Figure 3 The ineffective end is squeezed into a trumpet shape.

[0019] As an improvement of the above solution, the inclination angle of the inclined surface of the ineffective end 20 is 40-60°, specifically, the angle between the two inclined surfaces.

[0020] As an improvement of the above solution, the wall thickness of the tube body is 0.3-0.7 mm.

[0021] Generally, the length of the ineffective end 20 of the heat pipe is about 10mm. After optimizing the ineffective end 20 of the blank, the length of the ineffective end 20 can be shortened to about 6mm. Combined with the thickness of the fin sheet and the spacing between two adjacent sheets of 1-2mm, the 4mm length can be used to add 1-2 more fin sheets, thereby increasing the heat dissipation area and improving the heat dissipation effect. The heat dissipation area is increased by 3-5%.

[0022] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A blank capable of shortening the length of the ineffective end of a heat pipe, comprising a pipe body to be processed, characterized in that: The tube body comprises an effective section and an ineffective end, the opening of the ineffective end is inclined and expanded outwards to form a trumpet shape, the inclination angle of the ineffective end is 40-60 degrees, and the wall thickness of the tube body is 0.3-0.7 mm.

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