Passive heat dissipation mechanism for absorbing laser energy

Abstract

The utility model provides a passive heat dissipation mechanism for absorbing laser energy. The passive heat dissipation mechanism comprises a heat insulation protection cover; the high-energy absorption main body is located on the inner side of the heat insulation protection cover, the end face, facing the laser beam emission direction, of the high-energy absorption main body is a first end face, the bottom face of the high-energy absorption main body is a second end face, and the first end face is provided with an inclined incident plane; the inclined incident plane is obliquely arranged downwards in the laser beam emitting direction, the upper end of the inclined incident plane is arranged on the first end face, and the lower end of the inclined incident plane is arranged on the second end face; the inclined incident plane is provided with at least two first inclined grooves, and the bottom surface of each first inclined groove and the inclined incident plane form an included angle a. Redundant laser beam energy can be reasonably converted, active heat dissipation is effectively replaced with a passive heat dissipation mode, energy consumption and material consumption are reduced, and the working environment and materials are effectively protected.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, and in particular to a passive heat dissipation mechanism for absorbing laser energy. Background Technology

[0002] Currently, most energy absorption mechanisms in commercially available laser cutting systems are direct absorption or single-reflection structures, which are difficult to dissipate heat efficiently or require active cooling with fans. Their structural disadvantages are as follows:

[0003] 1. As laser power increases, the absorbing material is more prone to direct loss.

[0004] 2. A single-reflection mechanism will reflect a high-energy beam of light into the workspace, causing damage to other parts or materials in the workspace.

[0005] 3. Active cooling requires additional energy, resulting in energy waste. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a passive heat dissipation mechanism for absorbing laser energy. This mechanism can rationally convert excess laser beam energy, effectively replace active heat dissipation through passive heat dissipation, reduce energy and material consumption, and effectively protect the working environment and materials.

[0007] The embodiments of this utility model are achieved through the following technical solutions:

[0008] A passive heat dissipation mechanism for absorbing laser energy includes:

[0009] A heat insulation protective cover, wherein the outer wall of the heat insulation protective cover is provided with multiple heat dissipation grooves;

[0010] A high-energy absorbing body is located inside the heat insulation protective cover. The end face of the high-energy absorbing body facing the laser beam emission direction is the first end face, and the bottom surface of the high-energy absorbing body is the second end face. The first end face is provided with an inclined incident surface. Along the laser beam emission direction, the inclined incident surface is inclined downward, wherein the upper end of the inclined incident surface is provided on the first end face, and the lower end of the inclined incident surface is provided on the second end face.

[0011] The inclined incident surface has at least two first inclined grooves, and the bottom surface of the first inclined groove forms an angle α with the inclined incident surface.

[0012] According to a preferred embodiment, the included angle α ranges from 15° to 85°.

[0013] According to a preferred embodiment, the included angle α is 75°.

[0014] According to a preferred embodiment, the inclined incident surface forms an inclination angle b with the horizontal plane containing the bottom surface of the high-energy absorbing body;

[0015] The tilt angle b ranges from 30° to 60°.

[0016] According to a preferred embodiment, the tilt angle b is 45°.

[0017] According to a preferred embodiment, the right side wall of the first inclined groove forms an inclined angle c with the bottom wall of the first inclined groove, and the inclined angle c ranges from 45° to 100°.

[0018] According to a preferred embodiment, the tilt angle c is 80°.

[0019] According to a preferred embodiment, the high-energy absorption body is located inside the heat insulation protective cover, and the high-energy absorption body is detachably connected to the heat insulation protective cover.

[0020] According to a preferred embodiment, the heat dissipation groove is arranged vertically.

[0021] According to a preferred embodiment, the inclined incident surface is provided with at least two second inclined grooves;

[0022] A second inclined groove is provided on the lower side of each of the first inclined grooves, and the top of the second inclined groove is connected to the bottom of the first inclined groove.

[0023] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0024] This invention can effectively improve the working stability and safety of laser processing equipment. It can rationally convert excess laser beam energy, avoid the damage to absorbing materials caused by excess laser beam energy not being discharged, and prevent secondary damage to machines and materials that may occur inside the equipment. By using passive heat dissipation, it can effectively replace active heat dissipation, reduce energy and material consumption, and effectively protect the working environment and materials. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1A three-dimensional structural schematic diagram of a passive heat dissipation mechanism for absorbing laser energy, provided for an embodiment of this utility model;

[0027] Figure 2 A front view schematic diagram of a passive heat dissipation mechanism for absorbing laser energy, provided for an embodiment of this utility model;

[0028] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of KK in the diagram;

[0029] Figure 4 This is another front view schematic diagram of a passive heat dissipation mechanism for absorbing laser energy provided in an embodiment of the present utility model;

[0030] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of LL in the diagram;

[0031] Figure 6 A schematic diagram of a lens for emitting a laser beam and a passive heat dissipation mechanism for absorbing laser energy, provided for embodiments of this utility model;

[0032] Figure 7 for Figure 6 A partial structural diagram.

[0033] Icons: 1. Heat insulation cover; 2. Inclined incident surface; 3. First end face; 4. Second end face; 5. First inclined groove; 6. Heat dissipation groove; 7. Second inclined groove. Detailed Implementation

[0034] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0035] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0037] Example

[0038] Please refer to Figures 1 to 7 A passive heat dissipation mechanism for absorbing laser energy includes: a heat-insulating protective cover 1, the outer wall of which is provided with multiple heat dissipation grooves 6; a high-energy absorbing body, located inside the heat-insulating protective cover 1, the end face of the high-energy absorbing body facing the laser beam emission direction is a first end face 3, the bottom surface of the high-energy absorbing body is a second end face 4, and the first end face 3 is provided with an inclined incident surface 2; along the laser beam emission direction, the inclined incident surface 2 is inclined downward, wherein the upper end of the inclined incident surface 2 is provided on the first end face 3, and the lower end of the inclined incident surface 2 is provided on the second end face 4; the inclined incident surface 2 is provided with at least two first inclined grooves 5, the bottom surface of the first inclined groove 5 and the inclined incident surface 2 forming an angle α.

[0039] Preferably, the included angle α ranges from 15° to 85°. The included angle α range includes both 15° and 85°.

[0040] Preferably, the included angle α is 75°.

[0041] Preferably, the inclined incident surface 2 forms an inclination angle b with the horizontal plane containing the bottom surface of the high-energy absorber;

[0042] The tilt angle b ranges from 30° to 60°. The value of the tilt angle b includes both 30° and 60°.

[0043] Preferably, the tilt angle b is 45°.

[0044] Preferably, the right side wall of the first inclined groove 5 forms an inclined angle c with the bottom wall of the first inclined groove 5, and the inclined angle c ranges from 45° to 100°. The right side wall of the first inclined groove 5 is the end face away from the inclined incident surface 2. The inclined angle c ranges from 45° to 100°.

[0045] Preferably, the tilt angle c is 80°.

[0046] Preferably, the high-energy absorption body is located inside the heat insulation cover 1, and the high-energy absorption body and the heat insulation cover 1 are detachably connected. In this embodiment, the high-energy absorption body and the heat insulation cover 1 are detachable and separable. The high-energy absorption body can be embedded in the heat insulation cover 1, or the high-energy absorption body and the heat insulation cover 1 can be integrated into one unit.

[0047] Preferably, the heat dissipation groove 6 is vertically arranged. The vertical arrangement of the heat dissipation groove 6 ensures and facilitates the upward flow of low-temperature air, thereby promoting heat dissipation.

[0048] Preferably, the inclined incident surface 2 has at least two second inclined grooves 7;

[0049] Each first inclined groove 5 has a second inclined groove 7 on its lower side, and the top of the second inclined groove 7 is connected to the bottom of the first inclined groove 5. The second inclined groove 7 can guide the laser beam into the first inclined groove 5, promoting more laser beams to enter the first inclined groove 5 and convert energy.

[0050] The working principle of this utility model:

[0051] In this embodiment, the bottom surface refers to the attached surface. Figure 3 The bottom surface of the first inclined groove 5 has an opening on the left side. The cross-sectional view of the first inclined groove 5 is as follows. Figure 3 It consists of a bottom surface, a top surface, a right side wall, and an opening on the left side. For example, the inclined incident surface 2 is set with the left side higher than the right side. The first end surface 3 is the left side of the high-energy absorption body, and the second end surface 4 is the bottom wall of the high-energy absorption body. Other positions and directions can be explained with reference to the above directions.

[0052] The front and rear end faces of the first inclined groove 5 are arc surfaces. Setting the arc surfaces can provide more reflection space in the lateral direction and promote the conversion of light energy into heat energy.

[0053] like Figure 6 As shown, H is the lens that emits the laser beam, and the horizontal straight line with an arrow between the lens and the inclined incident surface 2 is the laser beam. The arrow indicates the direction of laser beam emission, that is, the laser beam is output from left to right into the first inclined groove 5 of the inclined incident surface 2. The straight arrow in the first inclined groove 5 is the reflection path of the laser beam. Figure 6 In the LL cross-sectional view, the vertical upward arrow on the right indicates the direction in which part of the laser beam's light energy is converted into part of its heat energy and dissipated, meaning heat is dissipated from bottom to top. The blank area on the right side of the LL cross-sectional view indicates the location of the heat dissipation groove 6. The heat dissipation groove 6 is vertically positioned to ensure airflow from bottom to top and carry away heat. The lower part of the heat dissipation groove 6 has a lower temperature and higher air density, while the upper part has a higher temperature and lower air density. Therefore, the air flows autonomously from bottom to top, better utilizing the heat dissipation function of the heat dissipation groove 6. Setting two or more first inclined grooves 5 increases the heat dissipation surface, further ensuring the release of absorbed energy. In this embodiment, the included angle a is selected as 75° and the tilt angle b is 45°. According to specific optical principles, the laser beam output by lens H can undergo up to 30 reflections within the first inclined groove 5 after contacting the inclined incident surface 2. Furthermore, due to the design of the tilt angle c being 80°, the energy absorption rate of the laser beam in the last 20 reflections is significantly increased, ensuring the complete absorption of the laser beam energy by the energy-absorbing body.

[0054] In this embodiment, the high-energy absorption body can be made of aluminum alloy, specifically black aluminum alloy, and the heat insulation protective cover 1 can be made of stainless steel.

[0055] Figure 4 , Figure 5 The number of the first inclined groove 5 is four, but not limited to four; a number can be set according to specific needs.

[0056] In this embodiment, the first end face 3 is provided with an inclined incident surface 2, which can be understood as the first end face 3 being provided with an inclined incident surface 2, that is, the first end face 3 includes a vertical end face and an inclined incident surface 2, such as... Figure 1 The first end face 3 shown is partially vertical and is covered by the end face of the heat shield 1 near the lens. Alternatively, the first end face 3 may only include the inclined incident surface 2, that is, the first end face 3 and the inclined incident surface 2 coincide.

[0057] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A passive heat dissipation mechanism for absorbing laser energy, characterized in that, include: A heat insulation protective cover, wherein the outer wall of the heat insulation protective cover is provided with multiple heat dissipation grooves; A high-energy absorbing body is located inside the heat insulation protective cover. The end face of the high-energy absorbing body facing the laser beam emission direction is the first end face, and the bottom surface of the high-energy absorbing body is the second end face. The first end face is provided with an inclined incident surface. Along the laser beam emission direction, the inclined incident surface is inclined downward, wherein the upper end of the inclined incident surface is provided on the first end face, and the lower end of the inclined incident surface is provided on the second end face. The inclined incident surface has at least two first inclined grooves, and the bottom surface of the first inclined groove forms an angle α with the inclined incident surface.

2. The passive heat dissipation mechanism for absorbing laser energy according to claim 1, characterized in that, The included angle α ranges from 15° to 85°.

3. The passive heat dissipation mechanism for absorbing laser energy according to claim 2, characterized in that, The included angle α is 75°.

4. The passive heat dissipation mechanism for absorbing laser energy according to claim 1, characterized in that, The inclined incident surface forms an angle b with the horizontal plane containing the bottom surface of the high-energy absorber; The tilt angle b ranges from 30° to 60°.

5. The passive heat dissipation mechanism for absorbing laser energy according to claim 4, characterized in that, The tilt angle b is 45°.

6. The passive heat dissipation mechanism for absorbing laser energy according to claim 1, characterized in that, The right side wall of the first inclined groove forms an inclined angle c with the bottom wall of the first inclined groove, and the inclined angle c ranges from 45° to 100°.

7. The passive heat dissipation mechanism for absorbing laser energy according to claim 6, characterized in that, The tilt angle c is 80°.

8. The passive heat dissipation mechanism for absorbing laser energy according to claim 1, characterized in that, The high-energy absorption body is located inside the heat insulation protective cover, and the high-energy absorption body is detachably connected to the heat insulation protective cover.

9. The passive heat dissipation mechanism for absorbing laser energy according to claim 1, characterized in that, The heat dissipation grooves are arranged vertically.

10. The passive heat dissipation mechanism for absorbing laser energy according to claim 1, characterized in that, The inclined incident surface is provided with at least two second inclined grooves; A second inclined groove is provided on the lower side of each of the first inclined grooves, and the top of the second inclined groove is connected to the bottom of the first inclined groove.

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