High-power optical shutter light beam cut-off structure

Abstract

The utility model discloses a high-power optical shutter light beam cut-off structure which comprises a light beam inlet, a reflector assembly, a temperature control switch and a laser absorption assembly, a light beam reaches the reflector assembly through the light beam inlet and is reflected to the laser absorption assembly through the effect of the reflector assembly, and the temperature control switch is arranged on the reflector assembly. The utility model provides a more reasonable beam truncation structure, improves the laser beam absorption efficiency during the laser beam truncation treatment, and also avoids the damage to non-metal parts by introducing the laser beam into the structural cavity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser application, and in particular to a high-power light shutter beam truncation structure. BACKGROUND

[0002] As a time-sharing and energy-sharing high-precision device, the light shutter usually needs to work with multiple sets of rotating mirrors to realize the switching of the light beam output channel. If multiple sets of mirrors fail at the same time, the incident laser will directly hit the structure shell. Since the shell has no water cooling structure, and the power of the incident laser is too high, the laser will break through the shell, causing laser leakage, which threatens the life safety of the workers. Therefore, the incident laser needs to be absorbed.

[0003] At present, the beam truncation structure mainly relies on the scattering of the reflecting ball to reduce the power density of the laser, and the laser is absorbed by the structure and converted into heat, and the heat is taken away by the water flow. Since the laser is scattered, the returned light inevitably returns to the shell, causing damage to the non-metallic devices in the shell. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a high-power light shutter beam truncation structure to solve the technical problems of low laser absorption efficiency and damage to the internal structure of the laser in the related art.

[0005] The embodiments of the present application provide a high-power light shutter beam truncation structure, which comprises a light beam inlet, a mirror assembly, a temperature control switch and a laser absorption assembly. The laser beam passes through the light beam inlet to the mirror assembly and is reflected to the laser absorption assembly by the action of the mirror assembly. The temperature control switch is arranged on the mirror assembly.

[0006] In the high-power light shutter beam truncation structure, the high-power light shutter beam truncation structure comprises a light beam inlet, a mirror assembly, a temperature control switch and a laser absorption assembly. The light beam passes through the light beam inlet to the mirror assembly and is reflected to the laser absorption assembly by the action of the mirror assembly. The temperature control switch is arranged on the mirror assembly. The laser beam absorption efficiency during the laser beam truncation process is improved, and by introducing the laser beam into the structure cavity, damage to the non-metallic components is also avoided. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 is a structure section schematic view of the high-power light shutter beam truncation structure provided by the embodiments of the present application;

[0008] Figure 2 is a schematic view of the transmission path of the laser beam provided by the embodiments of the present application;

[0009] Wherein, 1 first channel, 2 second channel, 3 third channel, 4 light beam entrance, 5 mirror assembly, 6 temperature control switch, 7 laser absorption assembly, 8 transmission path of laser beam. DETAILED DESCRIPTION

[0010] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0011] It should be understood that each step described in the method embodiments of the present disclosure can be performed in different orders and / or in parallel. In addition, the method embodiments can include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect.

[0012] The term "comprising" and variations thereof as used in the present disclosure are open-ended, that is, "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Related definitions of other terms will be given in the description below.

[0013] To solve the technical problems existing in the related art, the present application provides a high-power light shutter beam truncation structure, please see Figure 1 , Figure 1 is a structure section schematic diagram of the high-power light shutter beam truncation structure provided by the present application, wherein the high-power light shutter beam truncation structure comprises: a light beam entrance, a mirror assembly, a temperature control switch and a laser absorption assembly. The laser beam passes through the light beam entrance to the mirror assembly, and is reflected to the laser absorption assembly by the action of the mirror assembly. The temperature control switch is arranged on the mirror assembly.

[0014] In an embodiment, the provided high-power light shutter beam truncation structure includes a light beam entrance for laser beam incidence, so as to guide the laser beam into the high-power light shutter beam truncation structure when performing beam truncation processing. After entering the high-power light shutter beam truncation structure, the laser beam is reflected to the laser absorption assembly by the action of the mirror assembly, so that the laser beam is absorbed by the laser absorption assembly.

[0015] Exemplarily, the whole high-power shutter beam truncation structure can act on the transmission path of the laser beam of the high-power laser, and can be arranged at the back of a certain mirror. When the laser needs to be truncated by the rotation of the shutter, the laser beam enters the high-power shutter beam truncation structure through the beam entrance. When the laser beam is transmitted in the high-power shutter beam truncation structure, the light path of the laser beam is adjusted by the action of the arranged mirror assembly, and the laser beam is transmitted to the laser absorption assembly. The laser absorption assembly absorbs the laser to achieve the truncation of the laser beam.

[0016] When the structure shown in Figure 1 is processed, the transmission path of the laser beam in the high-power shutter beam truncation structure is as shown in Figure 2 . The laser beam enters the high-power shutter beam truncation structure through the beam entrance. The path of the laser beam is changed by the action of the mirror assembly to transmit the laser beam to the laser absorption assembly, and then the laser absorption assembly absorbs the laser beam.

[0017] Further, the high-power shutter beam truncation structure further comprises a transmission channel, and the transmission channel comprises a first channel, a second channel and a third channel, wherein the mirror assembly connects the first channel and the second channel, and the second channel is connected with the third channel.

[0018] Exemplarily, based on the transmission light path of the laser beam in the high-power shutter beam truncation structure, the high-power shutter beam truncation structure can be divided into three transmission channels. Referring to the transmission path of the laser light path shown in Figure 2 , the first channel is the segment from the beam entrance to the mirror assembly, the second channel is the segment from the mirror assembly to the laser absorption assembly, and the third channel is the laser absorption assembly segment.

[0019] Further, when the laser beam is transmitted in the high-power shutter beam truncation structure, the laser beam enters the first channel, the second channel and the third channel through the beam entrance, and is then absorbed on the laser absorption assembly. Specifically, the laser beam is transmitted in the first channel to the mirror assembly through the beam entrance, and is transmitted in the second channel after the action of the mirror assembly. The laser absorption assembly is arranged on the inner wall of the third channel, and the laser beam is transmitted on the laser absorption assembly after entering the third channel through the second channel.

[0020] Exemplarily, the laser beam enters the high-power beam truncation structure through the beam entrance, is transmitted in the first channel to reach the mirror assembly, is then reflected by the mirror assembly to enter the second channel, and is transmitted in the second channel to reach the laser absorption assembly. When the laser beam is absorbed by the laser absorption assembly, the range and area of the absorption of the laser can be increased by continuous reflection.

[0021] In fact, the laser absorption assembly is arranged on the inner wall of the third channel, and then the laser beam is incident on the inner wall of the third channel when entering the third channel, and is further absorbed by the laser absorption assembly arranged on the inner wall.

[0022] Further, the angle formed by the light path of the laser beam and the reflecting surface of the mirror assembly is an obtuse angle.

[0023] That is, when the laser beam enters the high-power beam truncation structure from the beam entrance, the light path formed by the laser beam and the reflecting surface of the mirror assembly forms an angle, such as angle α in Figure 2 , and the angle is an obtuse angle, so that the laser beam can enter the second channel.

[0024] Further, the angle formed by the laser beam passing through the second channel into the third channel and the laser absorption assembly is an obtuse angle.

[0025] That is, after the laser beam enters the third channel, it is absorbed by the laser absorption assembly, and in order to improve the absorption efficiency, the laser beam is incident at a certain angle when the laser beam is incident on the laser absorption assembly, such as angle β in Figure 2 , and the angle is an obtuse angle, so that the area of the laser absorption can be increased by continuous reflection, thereby improving the absorption efficiency of the laser beam.

[0026] Further, the laser absorption assembly includes an upper absorption assembly and a lower absorption assembly; and the laser beam passes through the upper absorption assembly and the lower absorption assembly in the third channel in sequence.

[0027] Exemplarily, when the laser beam enters the third channel due to the action of the mirror assembly and is absorbed by the laser absorption assembly, it is absorbed by the laser absorption assembly arranged on the inner wall of the third channel. In order to improve the absorption efficiency, when the laser absorption assembly is arranged, the laser absorption assembly can be arranged on the light path, so that the laser beam passes through the upper absorption assembly and the lower absorption assembly in sequence when the laser beam is transmitted in the third channel. The laser absorption assembly forms a wedge structure through the upper absorption assembly and the lower absorption assembly, thereby increasing the number of laser reflections in a limited space and increasing the absorption speed and efficiency of the laser.

[0028] When the laser beam is transmitted based on the transmission light path shown in Figure 2 , it is obvious that at least the upper absorption assembly and the lower absorption assembly are arranged on the upper and lower walls of the third channel, respectively, and the upper absorption assembly and the lower absorption assembly are arranged at the reflection points where the laser beam falls on the upper and lower inner walls, respectively, to ensure that the laser beam can be accurately absorbed, thereby avoiding damage to other devices.

[0029] Further, the upper absorption assembly includes a plurality of sub-upper absorption assemblies, and the lower absorption assembly includes a plurality of sub-lower absorption assemblies; the laser beam passes through the sub-upper absorption assemblies and the sub-lower absorption assemblies in the third channel in turn.

[0030] Exemplarily, when the laser beam is transmitted in the third channel, the absorption of the laser beam by the laser absorption assembly is realized by sequentially passing through the upper absorption assembly and the lower absorption assembly. In order to further improve the absorption efficiency, a plurality of upper absorption sub-assemblies and a plurality of lower absorption sub-assemblies can be respectively arranged, and the laser beam that is not completely absorbed in turn is reflected to the next absorption sub-assembly (upper absorption sub-assembly and lower absorption sub-assembly) through continuous absorption reflection and re-absorption, so that the laser beam in the third channel can be completely absorbed as much as possible.

[0031] Therefore, a plurality of upper absorption sub-assemblies can be arranged for the upper absorption assembly, and a plurality of lower absorption sub-assemblies can be arranged for the lower absorption assembly, and the upper absorption sub-assemblies and the lower absorption sub-assemblies are arranged at the reflection points / absorption points of the laser beam and the inner wall of the third channel.

[0032] It should be noted that, in addition to arranging the upper absorption assembly into a plurality of upper absorption sub-assemblies and arranging the lower absorption assembly into a plurality of lower absorption sub-assemblies, which can reduce the arrangement area of the absorption assembly, the entire absorption assembly can also be arranged on the upper wall and the lower wall of the third channel for the convenience of structural arrangement, or the entire inner wall of the third channel can also be provided with the absorption assembly.

[0033] Further, the plane formed by the upper absorption assembly is parallel to the plane formed by the lower absorption assembly.

[0034] Exemplarily, when the entire inner wall of the third channel is provided with the absorption assembly, in order to realize the absorption of the laser beam, the arrangement of the laser absorption assembly has certain requirements, based on Figure 1 and Figure 2 When the laser beam is transmitted in the high-power shutter beam truncation structure, the laser absorption assembly arranged needs to be accurately located on the transmission path of the laser beam, and in order to facilitate the structural arrangement, the plane of the arranged upper absorption assembly and the lower absorption assembly can be parallel.

[0035] Further, the high-power shutter beam truncation structure further includes a cooling component, and the cooling component is connected to the laser absorption assembly.

[0036] Exemplarily, when the laser absorption assembly absorbs the laser beam, heat and the like are generated. Therefore, in order to improve the absorption efficiency of the laser beam, the high-power optical shutter beam truncation structure can further comprise a cooling component, and the cooling component is connected with the laser absorption assembly, so that the laser absorption assembly is cooled by the cooling component. Specifically, the cooling component can be a water circulation structure, which absorbs and removes the heat generated by the laser absorption assembly through water flow.

[0037] Further, the temperature control switch is arranged on the side of the mirror assembly opposite to the reflecting surface.

[0038] Exemplarily, after the incident laser beam enters the beam truncation structure, the mirror assembly can also absorb the laser when reflecting the laser beam. Due to the absorption of the laser beam, the temperature of the mirror assembly rises. When the temperature exceeds the set temperature, the temperature control switch is turned off and an alarm is given, and the laser is stopped from emitting light. In order to improve the accuracy of temperature detection, the temperature control switch can be arranged on the side opposite to the reflecting surface of the mirror assembly.

[0039] In summary, the application discloses a high-power optical shutter beam truncation structure, which comprises a beam inlet, a mirror assembly, a temperature control switch and a laser absorption assembly. The beam enters the mirror assembly through the beam inlet and is reflected to the laser absorption assembly through the action of the mirror assembly, and the temperature control switch is arranged on the mirror assembly. The absorption efficiency of the laser beam during the laser beam truncation process is improved, and by introducing the laser beam into the structure cavity, damage to non-metal components is also avoided.

[0040] The above describes in detail the safety protection system of the unmanned excavator provided by the embodiment of the application. The principles and implementation manners of the application are described by applying specific examples. The above description of the embodiments is only used to help understand the method of the application and its core idea. Meanwhile, for those skilled in the art, according to the principles of the application, the specific implementation manners and application ranges can be changed. In summary, the content of the specification should not be understood as limiting the application. Moreover, for those skilled in the art, without departing from the principles of the application, some improvements and refinements can be made, which are also regarded as the protection scope of the application.

Claims

1. A high power shutter beam truncation structure, characterized by, The high-power optical shutter beam cutting structure comprises a light beam entrance, a mirror assembly, a temperature control switch and a laser absorption assembly. The high-power optical shutter beam cutting structure further comprises a transmission channel, and the transmission channel comprises a first channel, a second channel and a third channel.

2. The high power shutter beam truncation structure of claim 1, wherein, The laser beam is transmitted in the first channel through the light beam entrance to the mirror assembly, and is transmitted in the second channel after the action of the mirror assembly.

3. The high power shutter beam truncation structure of claim 2, wherein, The laser absorption assembly is arranged on the inner wall of the third channel, and the laser beam is transmitted on the laser absorption assembly after entering the third channel through the second channel. The angle formed by the laser beam and the reflecting surface of the mirror assembly is an obtuse angle.

4. The high power shutter beam truncation structure of claim 1, wherein, The angle formed by the laser beam and the laser absorption assembly is an obtuse angle.

5. The high-power shutter beam truncation structure of claim 2, wherein, The laser absorption assembly comprises an upper absorption assembly and a lower absorption assembly.

6. The high-power shutter beam truncation structure of claim 2, wherein, The laser beam sequentially passes through the upper absorption assembly and the lower absorption assembly in the third channel. The upper absorption assembly comprises a plurality of sub-upper absorption assemblies, and the lower absorption assembly comprises a plurality of sub-lower absorption assemblies.

7. The high power shutter beam truncation structure of claim 6, wherein, The laser beam sequentially and alternately passes through the sub-upper absorption assemblies and the sub-lower absorption assemblies in the third channel. The plane formed by the upper absorption assembly is parallel to the plane formed by the lower absorption assembly.

8. The high-power shutter beam truncation structure of claim 6, wherein, The high-power optical shutter beam cutting structure further comprises a cooling component connected to the laser absorption assembly.

9. The high-power shutter beam truncation structure of claim 1, wherein, The temperature control switch is arranged on the side of the mirror assembly opposite to the reflecting surface.

10. The high-power shutter beam truncation structure of claim 1, wherein, ​

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