A collection device for a laser beam and an optical system for absorbing the beam

Abstract

The utility model provides a kind of collection device of laser beam and optical system for absorbing light beam.The collection device of laser beam of the utility model peels off layer by layer larger diameter light beam, reflects and disperses it in cavity gradually, and the heat generated is taken away by cooling water.It can also continue to increase the volume of collector to accommodate more reflection-absorption levels to improve the maximum limit power.

Description

Technical Field

[0001] This utility model belongs to the field of laser technology, specifically relating to a laser beam collecting device and an optical system for absorbing the laser beam. Background Technology

[0002] Existing technologies typically employ single-stage absorption devices, utilizing inclined planes and threads to disperse and reflect the laser beam, thereby converting light energy into heat energy and dissipating it. Micro-arc oxidation is applied to the metal surface to prevent secondary reflection and surface melting. However, current technologies mostly employ only one stage of beam collection, and the water-cooling scheme is simple, only meeting the needs of lower-power beam collection and unable to meet the requirements of higher-power beam collection.

[0003] Therefore, how to obtain a collection device that meets the requirements for collecting higher power beams has become an urgent problem to be solved. Utility Model Content

[0004] Therefore, the purpose of this invention is to overcome the defects in the prior art and provide a laser beam collecting device and an optical system for absorbing the beam.

[0005] To achieve the above objectives, the first aspect of this utility model provides a laser beam collecting device, which includes: a cooling water guide channel cavity, a multi-stage dispersion reflection cavity, a fixed cover plate, a cooling water inlet, and a cooling water outlet; wherein,

[0006] The multi-stage dispersed reflection cavity has at least two stages, preferably 2 to 10 stages, more preferably 2 to 4 stages, and most preferably 3 stages.

[0007] According to the collection device of the first aspect of the present invention, the cooling water guide channel cavity is a spiral cooling water guide channel cavity.

[0008] According to the collection device of the first aspect of the present invention, the multi-level dispersion reflection cavity is disposed in the cooling water guide channel cavity and is not connected to the cooling water guide channel cavity.

[0009] According to the collection device of the first aspect of this utility model, wherein...

[0010] Each stage of the multi-stage dispersed reflection cavity has a hollow region with a continuously decreasing cross-sectional area, and the maximum cross-sectional area of ​​the hollow region of each stage decreases with each stage; and / or

[0011] The dispersed reflection cavities at each level are not mechanically connected, but are assembled and connected in series.

[0012] According to the collection device of the first aspect of this utility model, the fixed cover plate is used to close the cooling water guide channel cavity, and includes a fixed front cover plate and a fixed rear cover plate; wherein...

[0013] The fixed front cover plate is used to fix the multi-level dispersion reflection cavity;

[0014] Preferably, the top surface of the multi-stage dispersion reflection cavity near the fixed front cover is connected to the fixed front cover;

[0015] More preferably, the connection between the fixed front cover and the top surface of the multi-level dispersion reflection cavity near the fixed front cover is by bolts.

[0016] According to the collection device of the first aspect of this utility model, wherein...

[0017] The cooling water inlet is fixed on the side of the cooling water guide channel cavity near the fixed front cover plate; and / or

[0018] The cooling water outlet is fixed to the fixed rear cover plate.

[0019] According to the first aspect of the present invention, the laser beam collecting device further includes a base; the base includes a threaded structure and an external fixing hole;

[0020] Preferably, the base is connected to the cooling water guide channel cavity via the threaded structure; and / or

[0021] Preferably, the external fixing holes are located on both sides of the base and are used to connect the collecting device to other equipment.

[0022] According to the collection device of the first aspect of this utility model, wherein...

[0023] The cross-sectional shapes of the cooling water guide channel cavity and the multi-stage dispersion reflection cavity are selected from one or more of the following: circular, square, rectangular, rhomboid, triangular, and pentagonal.

[0024] Preferably, the shape is selected from one or more of the following: circle, square, rectangle.

[0025] The optimal shape is round.

[0026] According to the collection device of the first aspect of the present invention, the cooling water guide channel cavity further includes a groove for placing an external fixing device; wherein:

[0027] The grooves are located on both sides of the cooling water guide channel cavity; and / or

[0028] The external fixing device connects the collecting device to other devices through the external fixing hole.

[0029] The second aspect of this invention provides an optical system for absorbing a light beam, the optical system including the laser beam collecting device described in the first aspect;

[0030] Preferably, the optical system has a high-power waste light output.

[0031] According to a preferred embodiment of this utility model, the laser beam collecting device of this utility model includes a three-level or multi-level dispersed reflection structure to meet the requirements for collecting higher power beams. For example... Figure 1-3 As shown, three reflective chambers are placed unconnected within the spiral-shaped cooling water guide channel cavity. The top surface of the outermost reflective chamber is fixed to the guide device by bolts using a cover plate. Cooling water flows in from the top and out from the rear, with corresponding parts treated with waterproof sealing.

[0032] Each of the multi-stage dispersed reflection cavities has a hollow region with a continuously decreasing cross-sectional area, and the maximum cross-sectional area of ​​the hollow region of each stage of the dispersed reflection cavity decreases with each stage. There is no mechanical connection between the stages of the dispersed reflection cavity; they are only assembled in series, which has the advantage of being easy to install and remove.

[0033] The laser beam collecting device of this invention can be used in optical systems for absorbing laser beams, especially systems with high-power waste light output.

[0034] Compared with the prior art, the laser beam collecting device and the optical system for absorbing the beam of this invention can have, but are not limited to, the following beneficial effects:

[0035] 1. The laser beam collecting device of this utility model peels off the large diameter beam layer by layer, reflects it step by step and disperses it in the cavity, and the heat generated is carried away by cooling water.

[0036] 2. The laser beam collecting device of this utility model can be further enlarged to accommodate more reflection-absorption layers in order to improve the maximum limiting power. Attached Figure Description

[0037] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings, wherein:

[0038] Figure 1 A schematic diagram of the internal structure of the laser beam collecting device of this invention is shown.

[0039] Figure 2 A schematic diagram of the external structure of the laser beam collecting device of this invention is shown; wherein, Figure 2 A shows a perspective view of the external structure of the laser beam collecting device of this invention; Figure 2B shows a top view of the external structure of the laser beam collecting device of this invention; Figure 2 C shows a side view of the external structure of the laser beam collecting device of this invention.

[0040] Figure 3 A schematic diagram of the water flow direction of the laser beam collecting device of this invention is shown.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Cooling water guide channel cavity; 2. Multi-stage dispersion reflection cavity; 3. Fixed front cover plate; 4. Fixed rear cover plate; 5. Cooling water inlet; 6. Cooling water outlet; 7. Base; 8. External fixing hole; 9. Groove. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should be understood that these embodiments are only for more detailed and specific explanation and should not be construed as limiting the present invention in any way.

[0044] This section provides a general description of the materials and testing methods used in the experiments of this invention. While many of the materials and methods used to achieve the objectives of this invention are well known in the art, they are still described in as much detail as possible herein. It will be apparent to those skilled in the art that, unless otherwise specified in the context, the materials and methods used in this invention are well known in the art.

[0045] Example 1

[0046] This embodiment is an exemplary description of the laser beam collection device of this utility model.

[0047] like Figure 1 and 2 As shown, the laser beam collecting device of this utility model includes: a cooling water guide channel cavity 1, a multi-level dispersion reflection cavity 2, a fixed front cover plate 3, a fixed rear cover plate 4, a cooling water inlet 5, a cooling water outlet 6, a base 7, an external fixing hole 8, and a groove 9.

[0048] The multi-stage dispersion reflection cavity has at least two stages, preferably 2 to 10 stages, more preferably 2 to 4 stages. This embodiment uses a 3-stage dispersion reflection cavity as an example. The 3-stage dispersion reflection cavity is disposed within the cooling water guide channel cavity and is not connected to the cooling water guide channel cavity.

[0049] Each of the multi-stage dispersed reflection cavities has a hollow region with a continuously decreasing cross-sectional area, and the maximum cross-sectional area of ​​the hollow region of each stage of the dispersed reflection cavity decreases with each stage; there is no mechanical connection between the stages of the dispersed reflection cavity, but only assembly and series connection.

[0050] The fixed cover plate is used to seal the cooling water guide channel cavity, including a fixed front cover plate and a fixed rear cover plate; wherein, the top surface of the multi-level dispersion reflection cavity near the fixed front cover plate is connected to the fixed front cover plate, and the connection method in this embodiment is exemplified by bolts.

[0051] The cooling water inlet is fixed on the side of the cooling water guide channel cavity near the fixed front cover plate, and the cooling water outlet is fixed on the fixed rear cover plate.

[0052] The cross-sectional shape of the cooling water guide channel cavity and the multi-level dispersion reflection cavity is selected from one or more of the following: circular, square, rectangular, rhomboid, triangular, pentagonal. In this embodiment, a circular shape is used as an example.

[0053] The base includes a threaded structure and external fixing holes. The base is connected to the cooling water guide channel cavity through the threaded structure. The external fixing holes are located on both sides of the base and are used to connect the collection device to other equipment.

[0054] In this embodiment, a spiral-shaped cooling water guide channel cavity is used as an example. The cooling water guide channel cavity also includes grooves for placing external fixing devices; wherein: the grooves are located on both sides of the cooling water guide channel cavity, and the external fixing devices connect the collecting device to other equipment through the external fixing holes. When the external fixing holes of the base are inserted into the columnar external fixing devices, grooves can be machined to facilitate the insertion of the column.

[0055] like Figure 3 As shown, three reflective chambers are placed unconnected within the spiral-shaped cooling water guide channel cavity. The top surface of the outermost reflective chamber is fixed to the guide device by bolts using a cover plate. Cooling water flows in from the top and out from the rear, with corresponding parts treated with waterproof sealing.

[0056] The laser beam collecting device of this invention meets the requirements for collecting higher power beams by setting up a three-level or multi-level dispersed reflection structure.

[0057] Examples 2-3

[0058] Examples 2 and 3 are other exemplary descriptions of the laser beam collection device of this utility model.

[0059] The laser beam collecting devices of Examples 2 and 3 are identical in structure to those of Example 1, except for the selection of items listed in Table 1 below.

[0060] Table 1. Laser beam collection devices for Examples 2-3

[0061] 2 2 3 4

[0062] The laser beam collection devices in Examples 2 and 3, by setting up two-stage and four-stage dispersed reflection structures, meet the requirements for collecting beams with higher power.

[0063] While the effects of some embodiments have been shown above, those skilled in the art should understand that, based on the concept of this utility model, other embodiments not specifically shown or other technical solutions of this utility model not shown in the embodiments can also achieve the same technical effects as those claimed in the utility model content section:

[0064] 1. The laser beam collecting device of this utility model peels off the large diameter beam layer by layer, reflects it step by step and disperses it in the cavity, and the heat generated is carried away by cooling water.

[0065] 2. The laser beam collecting device of this utility model can be further enlarged to accommodate more reflection-absorption layers in order to improve the maximum limiting power.

[0066] Although the present invention has been described to a certain extent, it is apparent that appropriate changes can be made to various conditions without departing from the spirit and scope of the present invention. It is understood that the present invention is not limited to the described embodiments, but falls within the scope of the claims, which include equivalent substitutions for each element.

Claims

1. A laser beam collecting device, characterized in that, The laser beam collection device includes: a cooling water guide channel cavity, a multi-stage dispersion reflection cavity, a fixed cover plate, a cooling water inlet, and a cooling water outlet; wherein the multi-stage dispersion reflection cavity has at least two stages.

2. The collecting device according to claim 1, characterized in that, The number of levels in the multi-level dispersed reflection cavity is 2 to 10.

3. The collecting device according to claim 2, characterized in that, The number of stages in the multi-stage dispersed reflection cavity is 2 to 4.

4. The collecting device according to claim 3, characterized in that, The multi-stage dispersed reflection cavity has 3 stages.

5. The collecting device according to claim 1, characterized in that, The cooling water guide channel cavity is a spiral-shaped cooling water guide channel cavity.

6. The collecting device according to claim 1, characterized in that, The multi-level dispersed reflection cavity is disposed within the cooling water guide channel cavity, but is not connected to the cooling water guide channel cavity.

7. The collecting device according to claim 1, characterized in that: Each stage of the multi-stage dispersed reflection cavity has a hollow region with a continuously decreasing cross-sectional area, and the maximum cross-sectional area of ​​the hollow region of each stage decreases with each stage; and / or The dispersed reflection cavities at each level are not mechanically connected, but are assembled and connected in series.

8. The collecting device according to any one of claims 1 to 7, characterized in that, The fixed cover plate is used to close the cooling water guide channel cavity, and includes a fixed front cover plate and a fixed rear cover plate; wherein... The fixed front cover plate is used to fix the multi-level dispersed reflection cavity.

9. The collecting device according to claim 8, characterized in that, The multi-level dispersed reflection cavity is located near the fixed front cover plate, and its top surface is connected to the fixed front cover plate.

10. The collecting device according to claim 9, characterized in that, The connection between the fixed front cover plate and the top surface of the multi-level dispersion reflection cavity is by bolts.

11. The collecting device according to claim 8, characterized in that: The cooling water inlet is fixed on the side of the cooling water guide channel cavity near the fixed front cover plate; and / or The cooling water outlet is fixed to the fixed rear cover plate.

12. The collecting device according to any one of claims 1 to 7, characterized in that, The laser beam collecting device also includes a base; the base includes a threaded structure and an external fixing hole.

13. The collecting device according to claim 12, characterized in that: The base is connected to the cooling water guide channel cavity via the threaded structure; and / or The external fixing holes are located on both sides of the base and are used to connect the collection device to other equipment.

14. The collecting device according to any one of claims 1 to 7, characterized in that, The cross-sectional shape of the cooling water guide channel cavity and the multi-level dispersion reflection cavity is square.

15. The collecting device according to any one of claims 1 to 7, characterized in that, The cross-sectional shape of the cooling water guide channel cavity and the multi-level dispersion reflection cavity is selected from one or more of the following: circular, rectangular, rhomboid, triangular, and pentagonal.

16. The collecting device according to claim 15, characterized in that, The cross-sectional shape of the cooling water guide channel cavity and the multi-level dispersion reflection cavity is circular or rectangular.

17. The collecting device according to claim 16, characterized in that, The cross-sectional shape of the cooling water guide channel cavity and the multi-level dispersion reflection cavity is circular.

18. The collecting device according to claim 12, characterized in that, The cooling water guide channel cavity also includes a groove for placing external fixing devices; wherein: The grooves are located on both sides of the cooling water guide channel cavity; and / or The external fixing device connects the collecting device to other devices through the external fixing hole.

19. An optical system for absorbing light beams, characterized in that, The optical system includes a laser beam collecting device according to any one of claims 1 to 18.

20. The optical system according to claim 19, characterized in that, The optical system has a high-power waste light output.

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