An overheat protection structure for a light-collecting tube

Abstract

This utility model relates to the field of laser equipment integration technology, and specifically discloses an overheat protection structure for a light-collecting tube. The structure includes a light-collecting tube body with an overheat protection structure on its surface. This structure includes a metal lens barrel, and an array of concave lenses for scattering light within the metal lens barrel. Since the laser beams are collimated, when passing through the array of concave lenses, the collimated laser beams will diffuse irregularly into the light-collecting tube body, preventing them from concentrating on a single point within the body and causing a rapid increase in heat. After scattering, the laser energy of the light-collecting tube body is dispersed in all directions, greatly extending the time for metal powder to be generated. Even if metal powder is generated, it will remain between the light-collecting tube body and the bottom cover, preventing it from overflowing into the external space. Furthermore, since the array of concave lenses does not require curvature or high processing precision, the production cost is low, increasing the lifespan of other lenses in the external optical path, avoiding frequent replacements, and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of laser equipment integration technology, and in particular to an overheat protection structure for a light-collecting tube. Background Technology

[0002] In a beam splitting laser energy modulation optical path that requires real-time monitoring and adjustment, traditional metal light-blocking components have two major drawbacks if it is necessary to block excess laser beams:

[0003] Firstly, the light-blocking effect produces high-intensity diffuse reflection, causing stray light to escape into the air and pollute the environment.

[0004] Secondly, the continuous accumulation of laser energy causes the metal light-blocking components to overheat. Even though sealing and blackening oxidation treatment can suppress diffuse reflection, thermal stress accelerates the peeling of the oxide layer, generating metal powder that intrudes into the optical path. This secondary contamination will significantly reduce the lens life and severely damage the system's stability. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an overheat protection structure for a light-collecting tube, solving the technical problem of inconvenience in using existing light-collecting tubes.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An overheat protection structure for a light-collecting tube, comprising a light-collecting tube body;

[0010] The surface of the light-collecting tube is provided with an overheat protection structure.

[0011] The overheat protection structure includes a metal lens barrel, an array of concave lenses for astigmatism is provided on the inner side of the metal lens barrel, and a through groove is provided inside the light-collecting tube body.

[0012] Preferably, the through groove has a stepped groove on its inner side, the inner wall of the stepped groove has a first thread, the through groove has a bottom cover, the bottom cover has a shielding layer on its inner side, and the circumferential surface of the bottom cover has a second thread.

[0013] Preferably, the bottom cover is threaded inside the through groove via a second thread and a first thread, and an annular groove is formed inside the bottom cover.

[0014] Preferably, a set of levers is fixedly installed inside the annular groove, and the set of levers is embedded inside the annular groove.

[0015] (III) Beneficial Effects

[0016] Firstly, by setting up an array of concave lens astigmatism plates inside a metal lens barrel, a sealed space is formed between the astigmatism plate and the bottom cover of the light-collecting tube body. Since the laser beams are collimated, when they pass through the array of concave lens astigmatism plates, the collimated laser beams will diffuse irregularly into the light-collecting tube body, avoiding the concentrated impact on a certain point inside the light-collecting tube body, which would cause a rapid increase in heat. After scattering, the laser energy of the light-collecting tube body will be dispersed in all directions, greatly extending the time for metal powder to be generated. Even if metal powder is generated, it will remain between the light-collecting tube body and the bottom cover and will not overflow into the external space. At the same time, since the array of concave lens astigmatism plates do not have curvature requirements and processing precision, the production cost is low, the lifespan of other lenses in the external optical path is increased, frequent replacements are avoided, and production efficiency is improved.

[0017] Secondly, by setting through slots and stepped slots, workers can rotate the bottom cover using the lever assembly to install and remove the bottom cover on the stepped slot. This also allows for manual cleaning of the metal powder between the light-collecting tube body and the bottom cover, improving convenience. Attached Figure Description

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional exploded view of the structure of this utility model.

[0021] Figure 3 This is an exploded structural diagram of the main body of the light-collecting tube of this utility model;

[0022] Figure 4 This is an exploded structural diagram of the bottom cover connection of this utility model.

[0023] Legend: 11. Light-collecting tube body; 12. Metal lens tube; 13. Arrayed concave lens astigmatism plate; 14. Through slot; 15. Stepped slot; 16. First thread; 17. Bottom cover; 18. Second thread; 19. Annular groove; 21. Toggle bar assembly; 22. Shielding layer. Detailed Implementation

[0024] This application provides an overheat protection structure for a light-collecting tube, effectively solving the technical problem of inconvenience in the use of existing light-collecting tubes. By setting an array of concave lens diffusers inside the metal tube, a sealed space is formed between the diffuser and the bottom cover of the light-collecting tube body. Since the laser beams are collimated, when passing through the array of concave lens diffusers, the collimated laser beams will diffuse irregularly into the interior of the light-collecting tube body, avoiding the concentrated impact on a single point inside the light-collecting tube body that would cause a rapid increase in heat. After scattering, the laser energy of the light-collecting tube body is dispersed in all directions, greatly extending the lifespan of the metal powder. Even if metal powder is generated during the time before it is produced, it will remain between the light-collecting tube body and the bottom cover and will not overflow into the external space. At the same time, since the array-type concave lens astigmatism plate does not have the requirements for curvature and processing precision, the production cost is low, which increases the life of other lenses in the external optical path, avoids frequent replacement, improves production efficiency, and by setting through slots and stepped slots, the operator can rotate the bottom cover by using the lever assembly to complete the installation and removal of the bottom cover on the stepped slot. This also allows the metal powder between the light-collecting tube body and the bottom cover to be manually cleaned, improving convenience.

[0025] Example

[0026] like Figures 1-4 As shown, the technical solution in this application embodiment effectively solves the technical problem of the inconvenience of using existing light-collecting tubes. The overall idea is as follows:

[0027] To address the problems existing in the prior art, this utility model provides an overheat protection structure for a light-collecting tube, including a light-collecting tube body 11;

[0028] The surface of the light-collecting tube body 11 is provided with an overheat protection structure;

[0029] The overheat protection structure includes a metal lens barrel 12, an array of concave lens diffusers 13 on the inner side of the metal lens barrel 12, and a through slot 14 through the inside of the light-collecting tube body 11.

[0030] The metal lens barrel 12 has an array of concave lenses and a diffuser 13 built in, forming a sealed space with the bottom cover 17. The collimated laser is randomly diffused by the diffuser, avoiding heat focusing.

[0031] Metal powder control: The scattered laser disperses the energy and delays powder generation; after the powder is generated, it is stored in a sealed container between the light-collecting tube body 11 and the bottom cover 17 to prevent spillage;

[0032] Low-cost design: Astigmatism filters do not require curvature precision, reducing production costs and minimizing wear on external optical path lenses;

[0033] By setting an array of concave lens astigmatism plates 13, which are assembled in the metal lens barrel 12, a sealed space is formed between the array of concave lens astigmatism plates 13 and the bottom cover 17 at the bottom of the light-collecting tube body 11. Since the laser beams are collimated, when they pass through the array of concave lens astigmatism plates 13, the collimated laser beams will diverge irregularly into the light-collecting tube body 11, avoiding the concentrated impact on a certain point in the light-collecting tube body 11, which would cause a rapid increase in heat. After scattering, the laser energy of the light-collecting tube body 11 will be dispersed in all directions, greatly extending the time for metal powder to be generated. Even if metal powder is generated, it will remain between the light-collecting tube body 11 and the bottom cover 17 and will not overflow into the external space. At the same time, since the array of concave lens astigmatism plates 13 does not have the requirements for curvature and processing precision of the lens, the production cost is low, the lifespan of other lenses in the external optical path is increased, frequent replacements are avoided, and production efficiency is improved.

[0034] A stepped groove 15 is provided on the inner side of the through groove 14. The inner wall of the stepped groove 15 is provided with a first thread 16. A bottom cover 17 is provided inside the through groove 14. A shielding layer 22 is provided on the inner side of the bottom cover 17. The shielding layer 22 is made of high heat-resistant silicon carbide ceramic material. A second thread 18 is provided on the circumferential surface of the bottom cover 17. The bottom cover 17 is threaded into the through groove 14 through the second thread 18 and the first thread 16. An annular groove 19 is provided inside the bottom cover 17. A lever assembly 21 is fixedly installed inside the annular groove 19. The lever assembly 21 is embedded inside the annular groove 19.

[0035] By setting the through groove 14 and the stepped groove 15, the staff can rotate the bottom cover 17 through the lever assembly 21 to complete the installation and removal of the bottom cover 17 on the stepped groove 15. This also allows the metal powder between the light-collecting tube body 11 and the bottom cover 17 to be manually cleaned, improving convenience.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An anti-overheating structure of a light collecting cylinder comprising a light collecting cylinder body (11), characterized by ； The surface of the light-collecting tube body (11) is provided with an overheat protection structure; The overheat protection structure includes a metal lens barrel (12), and an array of concave lens diffusers (13) are provided on the inner side of the metal lens barrel (12). The light-collecting tube body (11) has a through groove (14) inside.

2. The overheat prevention structure for a light collecting cylinder according to claim 1, wherein A stepped groove (15) is provided on the inner side of the through groove (14); The stepped groove (15) has a first thread (16) on its inner wall.

3. The anti-overheating structure of a light collecting cylinder according to any one of claims 1-2, characterized in that, The through groove (14) is provided with a bottom cover (17), and the bottom cover (17) is provided with a shielding layer (22) on the inner side.

4. The structure for preventing overheating of a light collecting cylinder according to claim 3, wherein The bottom cover (17) has a second thread (18) on its circumferential surface; The bottom cover (17) is threaded into the through groove (14) by the second thread (18) and the first thread (16).

5. The structure for preventing overheating of a light collecting cylinder according to claim 4, wherein The bottom cover (17) has an annular groove (19) inside.

6. The structure for preventing overheating of a light collecting cylinder according to claim 5, wherein A set of levers (21) is fixedly installed inside the annular groove (19); The push bar group (21) is embedded inside the annular groove (19).

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