KR-20260067808-A - Device for processing inner surface angular grooves of a heat pipe and method for processing inner surface angular grooves of a heat pipe using the same

KR20260067808AKR 20260067808 AKR20260067808 AKR 20260067808AKR-20260067808-A

Abstract

The present invention provides an apparatus for machining an angled groove on the inner surface of a heat pipe for transferring fluid from a high-temperature section to a low-temperature section, comprising: a fixing part for fixing the heat pipe having internal screw threads machined therein; a rotating shaft inserted into the interior of the heat pipe, with one end rotatably mounted on the fixing part; a rotating shaft rotation means connected to the other end of the rotating shaft and rotating the rotating shaft; and a machining part mounted on the rotating shaft, which slides along the longitudinal direction of the rotating shaft when the rotating shaft rotates, thereby deforming the end of the screw thread machined on the inner surface of the heat pipe to form the angled groove, and a method for machining an angled groove on the inner surface of a heat pipe using the same.

Inventors

이정호
이석진

Assignees

아주대학교산학협력단

Dates

Publication Date: 20260513
Application Date: 20241106

Claims (6)

In a device for machining an inner circumference groove of a heat pipe for transferring fluid from a high-temperature section to a low-temperature section, the inner circumference groove of the heat pipe is machined. A fixing part for fixing the heat pipe having internal screw threads; A rotating shaft, one end of which is rotatably mounted on the above-mentioned fixed part and inserted into the interior of the heat pipe; A rotating shaft rotation means connected to the other end of the above rotating shaft and rotating the above rotating shaft; and A device for machining an inner circumferential groove of a heat pipe, comprising a machining part that is mounted on the aforementioned rotating shaft and, when the rotating shaft rotates, slides along the longitudinal direction of the rotating shaft to deform the end of the screw thread machined on the inner circumferential surface of the heat pipe to machine it into the aforementioned groove.
In claim 1, A spiral groove is formed along the longitudinal direction on the circumferential surface of the above-mentioned rotation axis, and A through hole is formed in the center of the above-mentioned processing part along the longitudinal direction of the above-mentioned processing part, and A device for machining an inner circumferential groove of a heat pipe, characterized in that a spiral corresponding to the spiral groove is machined in the through hole.
In claim 2, The above-mentioned processing part has a cylindrical shape, and A device for machining an inner circumferential groove of a heat pipe, characterized in that one end of the above-mentioned processing part protrudes roundly from the outside to the inside.
In claim 1, One side of the above fixed part is provided with a mounting end on which the above rotating shaft is mounted, and A mounting groove is formed in the above-mentioned mounting portion for mounting the above-mentioned rotating shaft, and A device for machining an inner circumferential groove of a heat pipe, characterized in that a bearing is provided inside the mounting groove.
In claim 1, A device for machining an inner circumferential groove of a heat pipe, characterized in that when the rotation axis is rotated in one direction by the rotation axis rotation means, the machining part moves from the other end side of the rotation axis to the one end side, deforming the end of the screw thread to machine the groove.
A method for forming a recessed groove on the inner surface of a heat pipe that transfers fluid from a high-temperature section to a low-temperature section, wherein the recessed groove is formed on the inner surface of the heat pipe. A heat pipe fixing step of fixing the heat pipe, which has internal screw threads, to a fixing part; A rotational shaft assembly step of inserting a rotational shaft into the heat pipe and assembling the inserted rotational shaft to the fixed part; A machining part assembly step of assembling a machining part that machines the screw thread into the groove on the above-mentioned rotating shaft; and A method for machining an inner circumferential groove of a heat pipe, comprising a machining part movement and a machining step of forming an indentation groove by deforming the end of the screw thread while the machining part slides into the interior of the heat pipe by the rotation of the above-mentioned rotation axis.

Description

Device for processing inner surface angular grooves of a heat pipe and method for processing inner surface angular grooves of a heat pipe using the same The present invention relates to an apparatus for machining an angled groove on the inner surface of a heat pipe and a method for machining an angled groove on the inner surface of a heat pipe using the same. More specifically, the invention relates to an apparatus for machining an angled groove on the inner surface of a heat pipe for forming an angled groove on the inner surface of a heat pipe and a method for machining an angled groove on the inner surface of a heat pipe using the same. Referring to the prior art described in Korean Registered Patent No. 10-0394309 (registered on July 29, 2003), the conventional heat pipe is configured such that when one end of a heat pipe in which a working fluid such as methyl alcohol, acetone, or water (distilled water) is injected into a metal pipe in which a fine metal mesh is attached to the inner wall of the metal pipe, or a combination of the two methods is formed, the working fluid evaporates at the end, and the evaporated working fluid moves in a gaseous state through the hollow part of the heat pipe to the other end that is not heated, transferring the latent heat of evaporation to the outside surroundings of the heat pipe to condense, and the condensed fluid returns to the heated part, i.e., the end, through the metal mesh or grooves by capillary action and evaporates again, continuous heat transfer is achieved. Conventionally, heat pipes using such a fine metal mesh have been the most widely used, but since the fine metal mesh must be bonded to the inner wall of the entire pipe, there is a problem in that it is difficult to manufacture when the heat pipe is thin or long, and consequently, manufacturing costs increase. FIG. 1 is a schematic diagram illustrating a device for machining an inner circumferential groove of a heat pipe according to an embodiment of the present invention. Figure 2 is a drawing showing a state in which a heat pipe with internal threads is fixed to a fixed part shown in Figure 1. Figure 3 is a drawing showing the state in which a rotating shaft is mounted on the fixed part shown in Figure 2. FIG. 4 is a drawing showing the state in which a processing part and a rotation axis rotation means are mounted on the rotation axis shown in FIG. 3. Figure 5 is an enlarged drawing showing the state in which the screw threads formed inside the heat pipe by the processing part shown in Figure 4 are processed into a groove. FIG. 6 is a flowchart illustrating the sequence of a method for machining a recessed groove on the inner surface of a heat pipe according to another embodiment of the present invention. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, and should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention. Referring to FIG. 1, the inner surface concave groove processing device (100) of a heat pipe according to an embodiment of the present invention is for processing a concave groove (12) capable of storing steam in a heat pipe (10) that transfers fluid from a high-temperature part to a low-temperature part, and includes a fixed part (110), a rotating shaft (120), a rotating shaft rotation means (130), and a processing part (140). Referring to FIGS. 1 and 2, the fixing part (110) serves to fix the heat pipe (10), and it is preferable that the heat pipe (10) fixed to the fixing part (110) be fixed to the fixing part (110) after having a screw thread (11) machined on its inner surface. It is preferable that the fixing part (110) for fixing the heat pipe (10) be equipped with a clamp (111) for fixing the heat pipe (10), and since the fixing structure for fixing the heat pipe (10) using the clamp (111) is general, a detailed description thereof will be omitted. It is preferable to use a tap tool, an internal screw cutter, a rotary brush, laser processing, etc., to machine the screw threads (11) on the inner surface of the heat pipe (10) fixed to the above-mentioned fixed part (110). Referring to FIGS. 1 and 3, a rotating shaft (120) is inserted into the interior of the heat pipe (10) fixed to the fixed part (110), and one end thereof penetrates the heat pipe (10), and the one end of the rotating shaft (120) that penetrates the heat pipe (10) is rotatably mounted to the fixed part (110). One side of the fixed part (110) is provided with a mounting end (112) to which one end of the rotating shaft (120) is mounted, and a mounting groove (112a) to which one end of the rotating shaft (120)