Carbon dioxide laser cavity module

Abstract

A kind of carbon dioxide laser cavity module includes cavity, two heat sinks and multiple screws: the cavity is the cuboid-shaped cylinder of the shape of the four closed aluminum profile and the open both ends, cavity has top wall, two side walls, bottom wall and internal hollow cavity, top wall and bottom wall are opposite along up-down direction, two side walls are opposite along front-rear direction, two side walls are provided with the screw hole of blind hole form;Each heat sink is the one-piece structure of aluminum profile, each heat sink is provided with through hole along the thickness direction of heat sink, two heat sinks are respectively detachably fixed to the two side walls of cavity via screw being screwed into screw hole through through hole.By cavity and two heat sinks being one-piece structure and being assembled by screw, the limitation of the volume of raw material used can be overcome, so that the selection of raw material of carbon dioxide laser cavity module is more flexible, and preparation efficiency is improved.

Description

Technical Field

[0001] This disclosure relates to the field of carbon dioxide lasers, and more specifically to a carbon dioxide laser cavity module. Background Technology

[0002] Figure 1 This is a three-dimensional view of a known carbon dioxide laser cavity module. In the carbon dioxide laser cavity module 100', the cavity 1', two heat sinks 2', and four mounting bases 4' are formed together as a single-piece structure and then machined. This single-piece structure, formed together, has a large volume of raw materials, which limits the selection of raw materials. In addition, the cavity 1', two heat sinks 2', and four mounting bases 4' cannot be processed individually (i.e., simultaneously) after forming, which limits the manufacturing efficiency of the carbon dioxide laser cavity module 100'. Summary of the Invention

[0003] In view of the problems existing in the background art, the purpose of this disclosure is to provide a carbon dioxide laser cavity module that can overcome the volume limitations of the raw materials used in the background art, make the selection of raw materials for the carbon dioxide laser cavity module more flexible, and improve the manufacturing efficiency.

[0004] Thus, a carbon dioxide laser cavity module includes a cavity, two heat sinks, and multiple screws: the cavity is a single-piece cylindrical structure with a rectangular shape, closed on all four sides and open at both ends, made of aluminum profile. The cavity has a top wall, two side walls, a bottom wall, and an internal hollow cavity. The top wall and bottom wall are opposite each other in the vertical direction, and the two side walls are opposite each other in the front-back direction. The two side walls are provided with blind hole-type screw holes. Each heat sink is a single-piece structure made of aluminum profile. Each heat sink is provided with a through hole that runs through the thickness direction of the heat sink. The two heat sinks are detachably fixed to the two side walls of the cavity by screws that pass through the through holes and are screwed into the screw holes.

[0005] The beneficial effects of this disclosure are as follows: In the carbon dioxide laser cavity module of this disclosure, the cavity and the two heat sinks are all integral single-piece structures assembled by screws, which overcomes the limitation of the volume of raw materials used in the integral single-piece structure formed together with the cavity and the two heat sinks in the prior art. This makes the selection of raw materials for the carbon dioxide laser cavity module more flexible. In addition, the cavity and the two heat sinks are processed separately (i.e. simultaneously) after they are formed, thereby improving the manufacturing efficiency of the carbon dioxide laser cavity module. Attached Figure Description

[0006] Figure 1 This is a 3D view of a known carbon dioxide laser cavity module.

[0007] Figure 2 This is a perspective view of a carbon dioxide laser cavity module according to the present disclosure.

[0008] Figure 3 yes Figure 2 A three-dimensional image viewed from another angle.

[0009] Figure 4 yes Figure 2 The end view as seen from the right.

[0010] Figure 5 It is along Figure 4 A cross-sectional view drawn along the CC line.

[0011] Figure 6 yes Figure 2 Exploded view

[0012] The reference numerals in the attached figures are explained as follows:

[0013] 100' CO2 laser cavity module RU121 with screw holes

[0014] 1' Cavity RL121 Lower Screw Hole Row

[0015] 11' Top wall L vertical centerline

[0016] 111' Electrode mounting hole 122 threaded hole

[0017] 112' pipe mounting hole 13 bottom wall

[0018] 12' side wall 131 assembly hole

[0019] 13' Bottom wall 14 Hollow cavity

[0020] 14' Hollow Cavity 2 Heatsinks

[0021] 2' heatsink with 21 through holes

[0022] 4' Mounting base TU21 with through holes

[0023] 6' Electrode Plate Support Base TL21 Lower Through Hole Row

[0024] 100 CO2 laser cavity module 22 substrate

[0025] D1 has 23 heat dissipation fins running vertically.

[0026] D2 Front and rear directions P Up and down directions center plane

[0027] D3 Left and right directions 3 screws

[0028] 1 cavity 4 fixing seats

[0029] 11 top wall 41 perforations

[0030] 111 Electrode mounting hole 5 bolts

[0031] 112 tube mounting hole 6 electrode plate support base

[0032] 12 sidewalls, 61 countersunk holes

[0033] 121 screw hole 7 countersunk pin Detailed Implementation

[0034] The accompanying drawings illustrate embodiments of this disclosure, and it will be understood that the disclosed embodiments are merely examples of this disclosure, which can be implemented in various forms. Therefore, the specific details disclosed herein should not be construed as limiting, but are intended only as the basis for the claims and as an illustrative basis to teach those skilled in the art how to implement this disclosure in various ways.

[0035] Reference Figures 2 to 6 The carbon dioxide laser cavity module 100 disclosed herein includes a cavity 1, two heat sinks 2, and multiple screws 3. The cavity 1 is a single-piece, rectangular cylindrical structure made of aluminum profile, closed on all four sides and open at both ends. The cavity 1 has a top wall 11, two side walls 12, a bottom wall 13, and an internal hollow cavity 14. The top wall 11 and bottom wall 13 are opposite each other in the vertical direction D1, and the two side walls 12 are opposite each other in the front-back direction D2. The two side walls 12 are provided with blind-hole screw holes 121. Each heat sink 2 is a single-piece aluminum profile structure, and each heat sink 2 is provided with a through hole 21 extending along the thickness direction of the heat sink 2. The two heat sinks 2 are detachably fixed to the two side walls 12 of the cavity 1 by screws 3 that pass through the through holes 21 and are screwed into the screw holes 121.

[0036] In the CO2 laser cavity module 100 disclosed herein, the cavity 1 and the two heat sinks 2 are both integral single-piece structures assembled by screws 3, which overcomes the limitation of the volume of raw materials used in the integral single-piece structure formed together with the cavity 1' and the two heat sinks 2' in the prior art. This makes the selection of raw materials for the CO2 laser cavity module 100 more flexible. In addition, the cavity 1 and the two heat sinks 2 are processed separately (i.e. simultaneously) after they are formed, thereby improving the manufacturing efficiency of the CO2 laser cavity module 100.

[0037] In the carbon dioxide laser cavity module 100 disclosed herein, both the cavity 1 and the two heat sinks 2 are made of aluminum profiles. On the one hand, this allows the cavity 1 and the two heat sinks 2 to make full use of mature technologies in their forming, and on the other hand, it is very easy and convenient to process.

[0038] The cuboid of cavity 1 can have a square or rectangular outer contour in its cross-section.

[0039] like Figures 2 to 4As shown, the two heat sinks 2 are offset from the side walls 12 in the vertical direction D1, so that the top surfaces of the two heat sinks 2 protrude upwards beyond the top wall 11 and the bottom surfaces of the two heat sinks 2 are located above the bottom wall 13. Thus, a portion of the two heat sinks 2 is positioned above the top wall 11 of the cavity 1, and this portion of the two heat sinks 2 comes into contact with the air above the top wall 11 of the cavity 1, which improves the heat exchange capacity of the carbon dioxide laser cavity module 100. Similarly, the fact that the bottom surfaces of the two heat sinks 2 are located above the bottom wall 13 exposes the portions of the side walls 12 below the bottom surfaces of the two heat sinks 2. This exposed portion increases the contact area with the surrounding air, thereby improving the heat exchange capacity of the carbon dioxide laser cavity module 100.

[0040] like Figure 3 , Figure 5 and Figure 6 As shown, the top wall 11 of the cavity 1 is provided with electrode mounting holes 111 and tube mounting holes 112. The electrode mounting holes 111 are used to mount electrodes (not shown), and the tube mounting holes 112 are used to mount tubes (not shown) for introducing working gas. By offsetting the two heat sinks 2 from the two side walls 12 in the vertical direction D1, the top surfaces of the two heat sinks 2 protrude upward beyond the top wall 11, and the bottom surfaces of the two heat sinks 2 are located above the bottom wall 13. The portion of the two heat sinks 2 above the top wall 11 of the cavity 1 will provide protection for the electrodes and the tubes for introducing working gas. In other words, the offsetting of the two heat sinks 2 from the two side walls 12 in the vertical direction D1 not only improves the heat exchange capacity of the carbon dioxide laser cavity module 100, but also provides protection for the electrodes and the tubes for introducing working gas, and also makes full use of the space above the top wall 11.

[0041] like Figure 6As shown, the screw holes 121 of each sidewall 12 are arranged with upper screw hole rows RU121 and lower screw hole rows RL121. The screw holes 121 of the upper screw hole row RU121 are close to the top wall 11, and the screw holes 121 of the lower screw hole row RL121 are located below the vertical centerline L of the sidewall 12. The through holes 21 of each heat sink 2 are arranged with upper through hole rows TU21 and lower through hole rows TL21. The through holes 21 of the upper through hole row TU21 correspond to the screw holes 121 of the upper screw hole row RU121, and the through holes 21 of the lower through hole row TL21 correspond to the screw holes 121 of the lower screw hole row RL121. By having the screw holes 121 of the upper screw hole row RU121 close to the top wall 11 and the through holes 21 of the upper through hole row TU21 corresponding to the screw holes 121 of the upper screw hole row RU121, the cantilevered fixing position of the two heat sinks 2 above the top wall 11 of the cavity 1 is minimized. This makes the ability of the two heat sinks 2 above the top wall 11 of the cavity 1 to resist external forces (such as vibration or impact) from the front-rear direction D2 as strong as possible (i.e., the ability to resist bending deformation in the front-rear direction D2 as strong as possible), thereby improving the structural stability of the two heat sinks 2 above the top wall 11 of the cavity 1.

[0042] Furthermore, such as Figure 6 As shown, each heat sink 2 has a base plate 22 and multiple heat dissipation fins 23. The base plate 22 is a vertical plate, and the multiple heat dissipation fins 23 are spaced apart from each other in the vertical direction D1. Each heat dissipation fin 23 protrudes outward from the base plate 22 in the front-back direction D2 and extends in the left-right direction D3. The upper through-hole row TU21 is located between some of the heat dissipation fins 23 in the vertical direction D1, and the lower through-hole row TL21 is located between some of the heat dissipation fins 23 in the vertical direction D1. By placing the upper through-hole row TU21 between some of the heat dissipation fins 23 in the vertical direction D1 and the lower through-hole row TL21 between some of the heat dissipation fins 23 in the vertical direction D1, the corresponding screw 3 can be inserted into some of the heat dissipation fins 23 in the front-back direction D2. That is to say, when viewed from the vertical direction D1, the corresponding screw 3 is hidden and protected by some of the heat dissipation fins 23, avoiding external contact with the screw 3 and thus preventing the fixing effect of the screw 3 from being affected.

[0043] like Figure 6 As shown, each heat sink 2 is mirror-symmetrical with respect to its vertical center plane P. This improves the symmetry and uniformity of heat transfer in the vertical direction D2 of each heat sink 2, thereby improving the uniformity of heat transfer in the carbon dioxide laser cavity module 100.

[0044] In addition, refer to Figures 2 to 6The sidewall 12 of the cavity 1 also has a blind-hole threaded hole 122. The carbon dioxide laser cavity module 100 also includes four fixing seats 4 and multiple bolts 5. Each fixing seat 4 is an integral single-piece structure. Each fixing seat 4 has a through hole 41. Each fixing seat 4 is detachably fixed to the sidewall 12 of the cavity 1 and located at one end of the corresponding heat sink 2 in the left-right direction D3 by the bolts passing through the through hole 41 and screwing into the threaded hole 122. Similarly, since each fixing seat 4 is an integral single-piece structure, each fixing seat 4 can be manufactured separately. This further overcomes the limitation of the volume of raw materials used in the integral single-piece structure formed by the cavity 1', two heat sinks 2' and four fixing seats 4' in the prior art. This makes the selection of raw materials for the carbon dioxide laser cavity module 100 more flexible. In addition, each fixing seat 4 is processed separately (i.e., simultaneously) after forming, thereby improving the manufacturing efficiency of the carbon dioxide laser cavity module 100.

[0045] In another embodiment, such as Figure 6 As shown, the carbon dioxide laser cavity module 100 also includes four fixing seats 4 and multiple bolts 5. Each side wall 12 of the cavity 1 also has multiple threaded holes 122 in the form of blind holes. The multiple threaded holes 122 are distributed in two rows in the vertical direction D1 and are arranged alternately with the upper threaded hole row RU121 and the lower threaded hole row RL121. Each fixing seat 4 is an integral single-piece structure. Each fixing seat 4 has through holes 41 arranged vertically. Each fixing seat 4 is detachably fixed to the side wall 12 of the cavity 1 by bolts 5 passing through the through holes 41 and screwed into the threaded holes 122 and located at one end in the left-right direction D3 of the corresponding heat sink 2. Similarly, since each fixing seat 4 is an integral single-piece structure, each fixing seat 4 can be manufactured independently. This further overcomes the limitation of the volume of raw materials used in the integral single-piece structure formed by the cavity 1', two heat sinks 2' and four fixing seats 4' in the prior art. This makes the selection of raw materials for the carbon dioxide laser cavity module 100 more flexible. In addition, each fixing seat 4 is processed separately (i.e. simultaneously) after forming, thereby improving the manufacturing efficiency of the carbon dioxide laser cavity module 100. By distributing multiple threaded holes 122 in two rows in the vertical direction D1 and alternating them with the upper threaded hole row RU121 and the lower threaded hole row RL121, when the cavity 1 is subjected to external impact (e.g., vibration) in the vertical direction D1, the forces experienced by the multiple threaded holes 122 and the positions of the upper threaded hole row RU121 and the lower threaded hole row RL121 will not be on the same straight line. This improves the impact resistance of the cavity 1 in the vertical direction D1. Similarly, external impacts from the left and right directions D3 on the cavity 1 are also dispersed due to this alternating arrangement, thereby improving the impact resistance of the cavity 1 in the left and right directions D3.

[0046] like Figure 6As shown, each fixing seat 4 is U-shaped, with an outer opening facing the left and right directions (D3) and mirror-symmetrical along the vertical direction (D1). This simplifies the structure, reduces material usage, and improves the ability of external impacts to be buffered and released through the outer openings of each fixing seat 4 facing the left and right directions (D3).

[0047] The material of each fixing base 4 can also be aluminum profile.

[0048] In order to increase the heat exchange capacity of the carbon dioxide laser cavity module 100, each mounting base 4 abuts against one end of the corresponding heat sink 2 in the left-right direction D3, thereby enhancing the heat exchange capacity of the carbon dioxide laser cavity module 100 through heat conduction between the mounting base 4 and the heat sink 2.

[0049] Reference Figures 2 to 6 The bottom wall 13 of the cavity 1 is provided with a blind hole 131. The carbon dioxide laser cavity module 100 also includes an electrode plate support 6 and a countersunk pin 7. The electrode plate support 6 is provided with a countersunk hole 61 extending in the vertical direction D1. The electrode plate support 6 is fixed to the bottom wall 13 of the cavity 1 in the hollow cavity 14 of the cavity 1 via the countersunk pin 7 passing through the countersunk hole 61 and interfering with the assembly hole 131. The electrode plate support 6 is used to support the electrode plate (not shown) of the carbon dioxide laser. The cooperation between the countersunk hole 61 and the countersunk pin 7 allows the assembled countersunk pin 7 to not occupy additional space in the hollow cavity 14 of the cavity 1, thereby increasing the space for the working medium to be filled in the cavity 14. The interference fit between the countersunk pin 7 and the assembly hole 131 enables the electrode plate support 6 to be detachably assembled with the bottom wall 13 of the cavity 1, improving the flexibility of the electrode plate support 6 fabrication and thus improving the fabrication efficiency of the carbon dioxide laser cavity module 100.

[0050] Several exemplary embodiments have been described in detail above, but this document is not intended to limit itself to the explicitly disclosed combinations. Therefore, unless otherwise stated, the various features disclosed herein can be combined to form several other combinations, which are not shown for simplicity.

Claims

1. A carbon dioxide laser cavity module, characterized in that, Includes a cavity (1), two heat sinks (2), and multiple screws (3): The cavity (1) is a single-piece structure in the shape of a cuboid, which is closed on all four sides and open at both ends of the aluminum profile. The cavity (1) has a top wall (11), two side walls (12), a bottom wall (13) and an internal hollow cavity (14). The top wall (11) and the bottom wall (13) are opposite each other in the vertical direction (D1), and the two side walls (12) are opposite each other in the front-back direction (D2). The two side walls (12) are provided with blind hole type screw holes (121). Each heat sink (2) is an integral single-piece structure of aluminum profile. Each heat sink (2) is provided with a through hole (21) that runs through the thickness direction of the heat sink (2). The two heat sinks (2) are respectively detachably fixed to the two side walls (12) of the cavity (1) by screws (3) that pass through the through hole (21) and are screwed into the screw hole (121). The two heat sinks (2) are offset from the two side walls (12) in the vertical direction (D1) so that the top surface of the two heat sinks (2) protrudes upward beyond the top wall (11) and the bottom surface of the two heat sinks (2) is above the bottom wall (13).

2. The carbon dioxide laser cavity module according to claim 1, characterized in that, The screw holes (121) of each side wall (12) are arranged in upper screw hole row (RU121) and lower screw hole row (RL121). The screw holes (121) of the upper screw hole row (RU121) are close to the top wall (11), and the screw holes (121) of the lower screw hole row (RL121) are located below the vertical center line (L) of the side wall (12). Each heat sink (2) has through holes (21) arranged with upper through hole row (TU21) and lower through hole row (TL21). The through holes (21) of the upper through hole row (TU21) correspond to the screw holes (121) of the upper screw hole row (RU121), and the through holes (21) of the lower through hole row (TL21) correspond to the screw holes (121) of the lower screw hole row (RL121).

3. The carbon dioxide laser cavity module according to claim 2, characterized in that, Each heat sink (2) has a base plate (22) and multiple heat dissipation fins (23). The base plate (22) is a vertical plate. The multiple heat dissipation fins (23) are spaced apart from each other in the vertical direction (D1). Each heat dissipation fin (23) protrudes outward from the base plate (22) in the front-back direction (D2) and extends in the left-right direction (D3). The upper through-hole row (TU21) is located between some of the heat dissipation fins (23) along the vertical direction (D1), and the lower through-hole row (TL21) is located between some of the heat dissipation fins (23) along the vertical direction (D1).

4. The carbon dioxide laser cavity module according to claim 1, characterized in that, The sidewall (12) of the cavity (1) also has a threaded hole (122) in the form of a blind hole. The carbon dioxide laser cavity module (100) also includes four mounting bases (4) and multiple bolts (5). Each fixing seat (4) is a single piece structure, and each fixing seat (4) has a through hole (41). Each mounting base (4) is detachably fixed to the side wall (12) of the cavity (1) by means of bolts (5) passing through the through hole (41) and screwed into the threaded hole (122) and located at one end of the corresponding heat sink (2) in the left-right direction (D3).

5. The carbon dioxide laser cavity module according to claim 4, characterized in that, Each mounting bracket (4) abuts against one end of the corresponding heat sink (2) in the left-right direction (D3).

6. The carbon dioxide laser cavity module according to claim 2, characterized in that, The carbon dioxide laser cavity module (100) also includes four mounting bases (4) and multiple bolts (5). Each sidewall (12) of the cavity (1) also has multiple threaded holes (122) in the form of blind holes. The multiple threaded holes (122) are distributed in two rows in the up-down direction (D1) and are arranged alternately with the upper threaded hole row (RU121) and the lower threaded hole row (RL121). Each fixing seat (4) is a single piece structure, and each fixing seat (4) has through holes (41) arranged vertically. Each mounting base (4) is detachably fixed to the side wall (12) of the cavity (1) by means of bolts (5) passing through the through hole (41) and screwed into the threaded hole (122) and located at one end of the corresponding heat sink (2) in the left-right direction (D3).

7. The carbon dioxide laser cavity module according to any one of claims 4-6, characterized in that, Each fixed seat (4) is U-shaped, with an outer opening facing the left and right directions (D3) and mirror symmetrical along the up and down directions (D1).

8. The carbon dioxide laser cavity module according to claim 1, characterized in that, The bottom wall (13) of the cavity (1) is provided with a blind hole (131). The carbon dioxide laser cavity module (100) also includes an electrode plate support (6) and a countersunk pin (7). The electrode plate support (6) is provided with a countersunk hole (61) that runs through the vertical direction (D1). The electrode plate support (6) is fixed to the bottom wall (13) of the cavity (1) in the hollow cavity (14) of the cavity (1) by a countersunk pin (7) that passes through the countersunk hole (61) and the interference fit assembly hole (131). The electrode plate support (6) is used to support the electrode plate of the carbon dioxide laser.

9. The carbon dioxide laser cavity module according to claim 1, characterized in that, The top wall (11) of the cavity (1) is provided with an electrode mounting hole (111) and a tube mounting hole (112). The electrode mounting hole (111) is used to install the electrode, and the tube mounting hole (112) is used to install the tube into which the working gas is introduced.

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