Infrared laser module with explosion-proof structure

Abstract

The invention discloses an infrared laser module with an explosion-proof structure, and particularly relates to the technical field of lasers, the infrared laser module comprises an explosion-proof shell, an infrared laser generation assembly and a base assembly, and the top of the explosion-proof shell is provided with a convergence chamber; a communicating pipe set is further arranged in the anti-explosion shell, an air inlet area is further arranged on the anti-explosion shell, a partition plate is fixedly installed in the air inlet area, the communicating pipe set comprises an air outlet pipe structure and an air inlet pipe structure, and the air outlet pipe structure and the air inlet pipe structure are connected through a connecting pipe. According to the invention, a plurality of communicating channels which are uniformly distributed in the inner cavity of the explosion-proof shell are formed by arranging the communicating pipe group, a plurality of air outlet pipe structures form a heat dissipation structure in the convergence chamber, and continuous airflow is formed in the connecting pipes, so that effective heat dissipation is carried out under the condition that the inner space and the outer space of the explosion-proof shell are relatively isolated, and the service life of the explosion-proof shell is prolonged. The use safety and stability of the module are improved, and the service life of the module is prolonged.

Description

Technical Field

[0001] The present invention relates to the field of laser technology, and more specifically, to an infrared laser module with an explosion-proof structure. Background Art

[0002] Infrared laser module is a device that can emit infrared laser, usually including laser generator (laser diode), driving circuit and corresponding optical components, etc. These components work together to produce infrared beams with specific wavelengths, which are widely used in security monitoring, distance measurement and mapping, industrial manufacturing and testing, medical field and scientific research.

[0003] Among them, in the field of security monitoring, especially in low-light or no-light environments, infrared laser modules can be used as efficient light sources. Infrared laser beams are emitted through laser generators, and various optical elements (such as lenses, reflectors, etc.) are used to shape the lasers so as to irradiate evenly within the required range. After the emitted infrared laser is irradiated onto the target object, part of the light will be reflected back according to the material and color characteristics of the object's surface. The reflected infrared light is captured by sensors (such as CCD or CMOS sensors in surveillance cameras) and then processed into visual image information. In this way, the monitoring system can obtain clear images even in the absence of visible light, greatly enhancing the system's night vision capability, which is especially suitable for application scenarios that require long-distance or high-precision monitoring.

[0004] In short, infrared laser fill light uses efficient infrared laser light source and precise optical design to provide powerful auxiliary lighting function under low light conditions, so that the monitoring system can operate effectively in almost completely dark environment. At the same time, due to the use of more directional laser technology, compared with traditional infrared LED fill light solution, it can significantly reduce power consumption while maintaining high brightness.

[0005] Among them, in some working environments where there are dangerous substances such as flammable and explosive gases, steam or dust (such as storage areas of chemical plants, etc.), these places are relatively large and require a large monitoring distance. Therefore, it is necessary to use infrared laser modules in conjunction with monitoring systems. However, the safety protection level required in these places is also relatively high. If the electronic equipment of the infrared laser module fails or unexpected phenomena occur during operation, it is easy to generate electric sparks, or some electronic components have too high operating temperatures and cause combustion or explosion. This is harmless under normal conditions, but it will cause greater impact in environments where flammable substances exist. In severe cases, even large-scale explosions or fires may occur. Therefore, in order to ensure the safety of the use of infrared laser modules, it is necessary to equip the module with corresponding explosion-proof structures, such as using a sturdy metal shell to encapsulate the electrical components of the infrared laser module and isolate the infrared laser module from external flammable substances. In this way, even if the infrared laser module fails, the combustible substances leaked from the outside will not burn. At the same time, this shell can withstand the explosion pressure when an explosion occurs inside, and prevent the flame from spreading to the external environment, effectively avoiding the impact of the explosion caused by the failure of internal electronic components on the external environment.

[0006] However, for some large infrared laser modules, although the explosion-proof structure provides effective isolation protection to prevent the entry of foreign substances, at the same time, the heat generated by the electronic components in the infrared laser module during operation is difficult to be exchanged with the external environment in a timely manner, resulting in an increase in the overall temperature of the infrared laser module.

[0007] Among them, although the explosion-proof structure can effectively protect the safety of the equipment and will not cause a major impact, in a relatively high temperature environment, the quantum efficiency inside the laser generator (laser diode) will be reduced, resulting in a reduction in the output light power. In extreme cases, excessively high operating temperatures may prevent the laser diode from achieving the expected output power, thereby affecting the performance of the entire system. At the same time, prolonged exposure to high temperatures will accelerate the aging process of the laser diode and other electronic components, resulting in a significant shortening of their service life. Therefore, if the infrared laser module needs to be used continuously for a long time, the internal temperature of the infrared laser module will continue to rise, and there will not be enough time and space to dissipate the heat, which will in turn affect the normal use of the equipment and pose certain safety hazards. Summary of the invention

[0008] The present invention provides an infrared laser module with an explosion-proof structure, and aims to solve the problem that: although the existing explosion-proof structure effectively isolates and protects the infrared laser module to prevent the entry of foreign substances, at the same time, the heat emitted by the electronic components in the infrared laser module during operation is difficult to be exchanged with the external environment in a timely manner, resulting in an increase in the overall temperature of the infrared laser module, affecting the safety of the module.

[0009] To achieve the above object, the present invention provides the following technical solution: an infrared laser module with an explosion-proof structure, comprising an explosion-proof housing, an infrared laser generating assembly and a base assembly, wherein the infrared laser generating assembly is installed inside the explosion-proof housing, and a convergence chamber is arranged on the top of the explosion-proof housing; A connecting pipe group is also provided in the explosion-proof housing, and an air inlet area is also provided on the explosion-proof housing. The air inlet area is provided in an area of ​​the explosion-proof housing away from the infrared laser generating assembly, and a partition plate is fixedly installed in the air inlet area; The connecting pipe group includes an air outlet pipe structure and an air inlet pipe structure, which are connected by a connecting pipe. The top of the air outlet pipe structure passes through the top wall of the convergence chamber and is connected to the outside world. The air outlet pipe structure is extended downward in the convergence chamber, and the air inlet pipe structure passes through the partition plate and is connected to the outside world.

[0010] In a preferred embodiment, the edge of the top wall of the convergence chamber is fixedly connected with a blocking flange, and the height of the blocking flange is higher than the height of the air outlet pipe structure located on the outer part of the top wall of the convergence chamber, so that the top of the convergence chamber forms a water collecting trough under the enclosure of the blocking flange, the air outlet pipe structure is a metal heat-conducting structure, and the connecting pipe is arranged in the explosion-proof shell near the heating area of ​​the infrared laser generating component.

[0011] In a preferred embodiment, a fan assembly is also provided in the air inlet area, the fan assembly includes a fan, the fan is rotatably arranged in the air inlet area, each air inlet pipe structure is located on the rear side of the fan, the fan assembly also includes a fan motor, the fan motor is fixedly mounted on the inner side of the partition plate, the output shaft of the fan motor passes through the partition plate and is fixedly connected to the fan, and a seal is provided between the output shaft of the fan motor and the partition plate.

[0012] In a preferred embodiment, the infrared laser generating assembly includes a laser output lens, and a laser output port is provided on the explosion-proof shell. The laser output port is a protruding cylindrical structure, and the laser output lens of the infrared laser generating assembly is located in the laser output port.

[0013] In a preferred embodiment, a lens protection assembly is provided in the laser output port, the lens protection assembly includes a protective lens, a piston lens frame is fixedly installed on the outside of the protective lens, the piston lens frame is slidably provided in the laser output port, and a sealing structure is provided between the piston lens frame and the laser output port, and at the same time, a buffer elastic member is provided between the piston lens frame and the laser output port.

[0014] In a preferred embodiment, a pressure relief structure is provided in the explosion-proof shell, and the pressure relief structure includes a fixed air outlet pipe, which is also connected to a connecting pipe and an air inlet pipe structure. The fixed air outlet pipe is fixedly installed in the top wall of the convergence chamber, and an elastic sac is connected between the fixed air outlet pipe and the connecting pipe.

[0015] In a preferred embodiment, the pressure relief structure also includes a floating air outlet pipe, which is also connected to a connecting pipe and an air inlet pipe structure. A piston hole is provided in the top wall of the convergence chamber. A floating piston is fixedly installed on the outside of the floating air outlet pipe. The floating piston is slidably installed in the piston hole to form a piston structure. An elastic limiter is provided at the bottom of the piston hole.

[0016] In a preferred embodiment, the base assembly includes a support plate, the explosion-proof shell is installed on the support plate, the base assembly also includes a mounting seat, a Z-axis rotation adjustment assembly and a Y-axis rotation adjustment assembly, the Z-axis rotation adjustment assembly is installed on the mounting seat, the Y-axis rotation adjustment assembly is installed on the Z-axis rotation adjustment assembly, and the support plate is fixedly installed on the Y-axis rotation adjustment assembly.

[0017] In a preferred embodiment, a self-locking shaft is fixedly connected to the bottom of the explosion-proof shell, a self-locking sleeve is fixedly installed in the support plate, the self-locking shaft passes through the self-locking sleeve and rotates with the self-locking sleeve, an inner ring is rotatably installed on the outer side of the self-locking shaft, an outer ring is arranged in the self-locking sleeve, the inner ring is located on the inner side of the outer ring, and multiple groups of centering elastic parts are arranged between the outer ring and the inner ring, a locking cam is fixedly connected to the side of the self-locking shaft close to the laser output port, and multiple groups of engaging grooves are arranged in the inner wall of the self-locking sleeve, and the locking cam and the engaging grooves are engaged with each other.

[0018] In a preferred embodiment, the self-locking shaft is arranged away from the laser output port, and sailboards are fixedly connected to both sides of the explosion-proof housing.

[0019] The beneficial effects of the present invention are as follows: the present invention forms a plurality of connecting channels evenly distributed in the inner cavity of the explosion-proof shell by setting a connecting pipe group, while ensuring that the outside air is isolated from the internal space of the explosion-proof shell, a plurality of air outlet pipe structures form a heat dissipation structure in the convergence chamber, and absorbs heat through the air outlet pipe structure, especially after the air inside the air outlet pipe structure is heated, there is a tendency to rise, thereby bringing the heat outward, and at the same time, the air near the air inlet pipe structure enters into the connecting pipe, thereby forming heat convection, that is, forming a continuous airflow in the connecting pipe, and uniformly absorbing heat in the internal area of ​​the explosion-proof shell, thereby effectively dissipating heat while ensuring that the internal and external spaces of the explosion-proof shell are relatively isolated, thereby improving the safety and stability of the module and increasing the service life of the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a stereogram of the present invention.

[0021] Figure 2 It is a schematic diagram of the structure of the infrared laser generating assembly inside the explosion-proof housing of the present invention.

[0022] Figure 3The figure is a schematic diagram of the structure of the fan assembly arranged in the air inlet area of ​​the present invention.

[0023] Figure 4 The figure is a schematic diagram of the structure of the present invention after a lens protection assembly is added to the laser output port.

[0024] Figure 5 It is a structural schematic diagram of one pressure relief structure of the present invention.

[0025] Figure 6 The figure is a schematic structural diagram of a pressure relief structure of the present invention.

[0026] Figure 7 This is a schematic diagram of the structure after a self-unlocking protection component is added between the explosion-proof housing and the base component of the present invention.

[0027] Figure 8 This is a schematic diagram of the structure of the present invention after adding a sailboard to the explosion-proof housing.

[0028] Fig. 9 It is a schematic diagram of the cooperation between the self-locking rotating shaft and the self-locking sleeve of the present invention.

[0029] Fig.10 It is a transverse cross-sectional view of the matching area between the self-locking rotating shaft and the self-locking sleeve of the present invention.

[0030] The accompanying drawings are marked as follows: 1. explosion-proof housing; 11. laser output port; 12. convergence chamber; 121. enclosure flange; 122. piston hole; 123. elastic limiter; 13. air inlet area; 14. partition plate; 15. protective mesh plate; 16. protective lens; 161. piston lens frame; 162. buffer elastic member; 17. sailboard; 18. self-locking shaft; 181. locking convex key; 2. infrared laser generating assembly; 21. laser output lens; 3. base assembly; 31. Support plate; 32. Mounting seat; 33. Z-axis rotation adjustment assembly; 34. Y-axis rotation adjustment assembly; 35. Self-locking sleeve; 351. Inner sleeve ring; 352. Outer sleeve ring; 353. Centering elastic member; 354. Engaging groove; 4. Connecting pipe group; 41. Exhaust pipe structure; 411. Fixed exhaust pipe; 412. Floating exhaust pipe; 42. Inlet pipe structure; 43. Connecting pipe; 44. Elastic capsule; 45. Floating piston; 5. Fan; 51. Fan motor. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0032] Refer to the instruction manual Figures 1 to 10, an infrared laser module with an explosion-proof structure, comprising an explosion-proof shell 1, an infrared laser generating component 2 and a base component 3, wherein the infrared laser generating component 2 is installed inside the explosion-proof shell 1, and the explosion-proof shell 1 is installed on the base component 3, wherein the explosion-proof shell 1 is made of high-strength metal material, and the wall thickness is greater than the shell wall thickness of a general traditional infrared laser module, thereby realizing enhanced protection. At the same time, according to requirements, corresponding protective coatings (such as explosion-proof coatings or fire-proof coatings) or other enhanced protective structures can be provided on the inner and outer walls of the explosion-proof shell 1, and the explosion-proof shell 1 can be provided in the form of a combination of multiple split structures to facilitate the installation of the infrared laser generating component 2, but the connection strength and tightness of the multiple split structural parts need to be strengthened, and the explosion-proof shell 1 finally formed effectively wraps and protects the infrared laser generating component 2. At the same time, the explosion-proof shell 1 is sealed as a whole to isolate the inner and outer cavities of the explosion-proof shell 1, thereby isolating the infrared laser generating component 2 from further affecting the external dangerous environment when an accident occurs, and is also isolating the influence of external accidents on the infrared laser generating component 2, thereby realizing effective internal and external explosion-proof protection of the infrared laser generating component 2.

[0033] The infrared laser generating assembly 2 is mainly composed of a laser generator (such as a laser diode), a driving circuit and optical elements. The infrared laser finally generated is processed by the optical elements and then emitted, that is, emitted through the laser output lens 21. Therefore, an opening that enables the laser to be emitted needs to be reserved on the explosion-proof shell 1, but at the same time, a certain protection for the laser output lens 21 is also required. Therefore, a laser output port 11 is provided on the explosion-proof shell 1. The laser output port 11 is a protruding cylindrical structure, and the laser output lens 21 of the infrared laser generating assembly 2 is located in the laser output port 11.

[0034] It should be noted that the above infrared laser generating component 2 is a commonly used solution in infrared laser technology. It may be slightly different when applied in various fields, but the principles are basically the same. The specific details of the infrared laser generating component 2 are all commonly used equipment in the prior art. Therefore, this embodiment will not be explained in detail.

[0035] Since the explosion-proof housing 1 completely isolates the infrared laser generating assembly 2 from the outside, in order to ensure the corresponding heat dissipation effect of the infrared laser generating assembly 2 and prevent the internal temperature of the explosion-proof housing 1 from exceeding the normal operating temperature range of the equipment, this embodiment provides the following technical solutions. For details, refer to the attached manual. Figure 1 and Figure 2A convergence chamber 12 is provided at the top of the explosion-proof shell 1. The convergence chamber 12 is relatively empty and does not have corresponding electronic components, thereby reserving a safe space for the explosion-proof shell 1, and the heat generated by the equipment can be relatively gathered at the convergence chamber 12. At the same time, a connecting pipe group 4 is also provided in the explosion-proof shell 1, and an air inlet area 13 is also provided on the explosion-proof shell 1. The air inlet area 13 is provided on the side or bottom area of ​​the explosion-proof shell 1, and the air inlet area 13 can also be provided on the side and the bottom, and a partition plate 14 is fixedly installed in the air inlet area 13. The connecting pipe group 4 includes an air outlet pipe structure 41 and an air inlet pipe structure 42. The air outlet pipe structure 41 and the air inlet pipe structure 42 are connected by a connecting pipe 43. The top of the air outlet pipe structure 41 passes through the top wall of the convergence chamber 12 and is connected to the outside world, and the air outlet pipe structure 41 extends downward in the convergence chamber 12, and the air inlet The air pipe structure 42 passes through the partition plate 14 and is connected with the outside world, thereby forming a plurality of connecting channels evenly distributed in the inner cavity of the explosion-proof shell 1, but at the same time, the outside air is isolated from the internal space of the explosion-proof shell 1. When the module is in use, a plurality of air outlet pipe structures 41 form a heat dissipation structure in the convergence chamber 12, and heat is absorbed through the air outlet pipe structure 41. In particular, after the air inside the air outlet pipe structure 41 is heated, it tends to rise, thereby bringing the heat outward. At the same time, the air near the air inlet pipe structure 42 enters the connecting pipe 43, thereby forming heat convection, that is, forming a continuous airflow in the connecting pipe 43, and uniformly absorbing heat in the internal area of ​​the explosion-proof shell 1, thereby ensuring that the internal and external spaces of the explosion-proof shell 1 are relatively isolated, effectively dissipating heat, improving the safety and stability of the module, and increasing the service life of the module.

[0036] Based on the above principle, in order to further improve the heat dissipation effect, the air outlet pipe structure 41 is a metal heat-conducting structure, such as a copper tube. The connecting pipe 43 and the air inlet pipe structure 42 can be made of metal materials or other materials. For example, the connecting pipe 43 can be made of a copper tube or an aluminum tube. During the actual assembly, the connecting pipe 43 is bent and shaped according to the distribution of each unit module of the infrared laser generating component 2, so that the connecting pipe 43 is sufficiently close to each heating unit in the infrared laser generating component 2 to fully dissipate heat. At the same time, the copper tube or aluminum tube also has a certain flexibility. When assembling the explosion-proof shell 1, each tube can be adjusted accordingly to ensure the outlet. After the air pipe structure 41 is installed on the top wall of the convergence chamber 12, the split structure can be assembled without being affected by the connecting pipe 43 (for example, the explosion-proof shell 1 is provided with an upper and lower split structure, and the convergence chamber 12 area is used as the cover body. After the infrared laser generating assembly 2 and the air inlet pipe structure 42 are pre-installed, the connecting pipe 43 is bent and pressed on the corresponding area, and then the air outlet pipe structure 41 is passed through and installed on the top plate of the convergence chamber 12, and then the cover body is buckled. At this time, each connecting pipe 43 can be adaptively deformed without hindering the closing of the cover body). In addition, the connecting pipe 43 can also adopt a flexible tube structure, such as a thin tube structure made of high temperature resistant rubber.

[0037] Further, in order to enhance the heat dissipation effect of the airflow in the connecting pipe group 4, this embodiment also provides the following technical solutions, see the attached manual Figure 3 A fan assembly is also provided in the air inlet area 13, and the fan assembly includes a fan 5, and the fan 5 is rotatably arranged in the air inlet area 13, wherein each air inlet pipe structure 42 is located at the rear side of the fan 5 (i.e., the side of the fan 5 close to the inner cavity of the explosion-proof shell 1), and the fan assembly also includes a fan motor 51, and the fan motor 51 is fixedly installed on the inner side of the partition plate 14, and the output shaft of the fan motor 51 passes through the partition plate 14 and is fixedly connected to the fan 5, and a sealing member such as a sealing ring is provided between the output shaft of the fan motor 51 and the partition plate 14, so that the fan motor 51 is also located in the inner cavity of the explosion-proof shell 1, so as to realize the isolation of the electrical connection point of the fan motor 51 from the outside, thereby realizing the synchronous protection of the fan motor 51.

[0038] At the same time, in order to prevent external debris from blocking the air intake pipe structure 42, and to prevent accidents in the external environment from causing explosions and the like, causing flying stones and the like to hit the fan 5 and cause it to be damaged, the present embodiment also has a protective mesh plate 15 fixedly installed at the external port of the air inlet area 13. The protective mesh plate 15 is a thick metal plate structure with a mesh structure.

[0039] In the above embodiment, the laser output lens 21 can be directly fixedly installed in the laser output port 11, and a corresponding sealing structure is set. However, based on this scheme, the outermost lens of the laser output lens 21 is directly exposed. If an accident occurs in the external environment, resulting in an explosion or the like, flying stones are generated, and the flying stones directly hit the lens of the laser output lens 21, the laser output lens 21 will be damaged. Secondly, the explosion-proof shell 1 will be connected to the outside world through the laser output lens 21, and the corresponding electronic components of the infrared laser generating assembly 2 will be damaged, resulting in electric sparks or even small explosions. At this time, the external environment has already encountered an accident, resulting in the presence of flammable substances around the outside of the explosion-proof shell 1, so it is more likely to cause a secondary explosion caused by the infrared laser generating assembly 2, reducing the protection effect.

[0040] Therefore, in order to solve the above problems, this embodiment also provides the following technical solutions, see the attached manual Figure 4A lens protection assembly is provided in the laser output port 11, and the lens protection assembly includes a protective lens 16. A piston lens frame 161 is fixedly installed on the outside of the protective lens 16. The piston lens frame 161 is slidably provided in the laser output port 11, and a sealing structure is provided between the piston lens frame 161 and the laser output port 11. At the same time, a buffer elastic member 162 is provided between the piston lens frame 161 and the laser output port 11. The buffer elastic member 162 is used to provide an elastic force for the piston lens frame 161 to move toward the outside of the laser output port 11, thereby forming a buffer support. Even if there is a flying stone impact, it will hit the protective lens 16 in advance, and according to the elastic buffering impact force of the buffer elastic member 162, a certain protection is formed for the laser output lens 21, and the probability of the protective lens 16 being broken can also be reduced, thereby improving the protection performance of the module.

[0041] Furthermore, in the above-mentioned embodiment, since the inside and outside of the explosion-proof shell 1 are relatively isolated, the amount of internal air is constant. When a large temperature difference is formed in the module, the internal air pressure will also change. Especially when an accident occurs and a flying stone hits the protective lens 16, since the protective lens 16 and the piston lens frame 161 form a piston structure, the protective lens 16 will compress the air inside the explosion-proof shell 1. At the same time, the internal air pressure of the explosion-proof shell 1 increases. On the one hand, it is easy to prevent the protective lens 16 from producing buffering movement. On the other hand, excessive air pressure will affect the normal operation of some electronic components. For this reason, the present embodiment also provides a pressure relief structure in the explosion-proof shell 1. Refer to the attached manual for details. Figure 5 The present embodiment provides a solution of a pressure relief structure, which includes a fixed air outlet pipe 411. The fixed air outlet pipe 411 is one of the air outlet pipe structures 41. The fixed air outlet pipe 411 is fixedly installed in the top wall of the convergence chamber 12. An elastic capsule 44 (high-temperature resistant rubber or other high-temperature resistant elastic materials are required) is connected between the fixed air outlet pipe 411 and the connecting pipe 43. The elastic capsule 44 has the elasticity to maintain the initial state. Therefore, when the air pressure inside the explosion-proof shell 1 changes, the elastic capsule 44 will produce corresponding deformation to adapt to the air pressure, thereby avoiding excessive air pressure inside the explosion-proof shell 1.

[0042] In addition, refer to the instructions attached Figure 6, the present embodiment also provides another pressure relief structure, which includes a floating air outlet pipe 412, which is also one of the air outlet pipe structures 41. A piston hole 122 is provided in the top wall of the convergence chamber 12, and a floating piston 45 is fixedly installed on the outside of the floating air outlet pipe 412. The floating piston 45 is slidably installed in the piston hole 122 to form a piston structure. An elastic limiter 123 (such as an elastic ring, an elastic protrusion) is provided at the bottom of the piston hole 122, and a rigid limiter structure is provided at the top of the piston hole 122. During installation, the floating air outlet pipe 412 is inserted into the piston hole 122 from bottom to top so that the floating piston 45 passes over the elastic limiter 123. When the air pressure in the explosion-proof shell 1 changes, the floating piston 45 can generate corresponding floating to adapt to the air pressure in the temporal part of the explosion-proof shell 1, and the size of the piston hole 122 can be set according to demand to ensure that the floating piston 45 will not go beyond the piston hole 122 under the maximum change range of the air pressure in the explosion-proof shell 1.

[0043] It should be noted that the above two pressure relief structure schemes are not independent of each other and can be used separately or in combination. The number of connecting pipe groups 4 does not need to be as dense as shown in the drawings of the present application specification. The actual number and size of the connecting pipe groups 4 can be set according to demand, and the number of corresponding fixed air outlet pipes 411 and floating air outlet pipes 412 can be set. The remaining air outlet pipe structures 41 all adopt a relatively long downward extension structure to ensure effective heat exchange.

[0044] For further information, please refer to the attached manual. Figure 5 The top wall edge of the gathering chamber 12 is fixedly connected with a blocking flange 121, and the height of the blocking flange 121 is higher than the height of the outer portion of the top wall of the gathering chamber 12 of the air outlet pipe structure 41, so that the top of the gathering chamber 12 forms a water collecting trough under the blocking of the blocking flange 121, and when it rains, rainwater can flow in the reverse direction through the air outlet pipe structure 41, further enhancing the heat dissipation effect.

[0045] It should be noted that the above solutions are all based on the fact that air or other gases remain in the inner cavity of the explosion-proof shell 1. However, since the explosion-proof shell 1 is relatively sealed, in order to improve the protection effect, liquid can also be injected into the explosion-proof shell 1 to improve the heat dissipation effect, such as injecting hydraulic oil or other liquids that do not affect the use of electronic components.

[0046] For further information, please refer to the attached manual. Figure 1The base assembly 3 includes a support plate 31, and the explosion-proof shell 1 is installed on the support plate 31. The base assembly 3 also includes a mounting seat 32, a Z-axis rotation adjustment assembly 33 and a Y-axis rotation adjustment assembly 34. The mounting seat 32 is used to connect with the mounting equipment in the module usage scenario. The Z-axis rotation adjustment assembly 33 is installed on the mounting seat 32 to adjust the left and right directions of the explosion-proof shell 1. The Y-axis rotation adjustment assembly 34 is installed on the Z-axis rotation adjustment assembly 33 to adjust the pitch angle of the explosion-proof shell 1. The support plate 31 is fixedly installed on the Y-axis rotation adjustment assembly 34, wherein the Z-axis rotation adjustment assembly 33 and the Y-axis rotation adjustment assembly 34 are both ordinary rotation adjustment assemblies, such as servo motors. The difference is that a corresponding explosion-proof protection structure is also provided on the outside of the assembly.

[0047] In this embodiment, the explosion-proof housing 1 can be directly fixedly connected to the support plate 31, but this solution is not suitable for accidents. For example, the explosion direction is located in front of the infrared laser generating assembly 2, and the flying stones also come to the front, and the weakest part of the module itself is located in the front. Therefore, if there is continuous flying stones, there is a possibility of accidents. Therefore, this embodiment also provides the following solution, refer to the attached manual Figures 7 to 10 A self-locking shaft 18 is fixedly connected to the bottom of the explosion-proof shell 1, and a self-locking sleeve 35 is fixedly installed in the support plate 31. The self-locking shaft 18 passes through the self-locking sleeve 35 and rotates with the self-locking sleeve 35. An inner sleeve ring 351 is rotatably installed on the outer side of the self-locking shaft 18, and an outer sleeve ring 352 is arranged in the self-locking sleeve 35. The inner sleeve ring 351 is located on the inner side of the outer sleeve ring 352, and multiple groups of centering elastic members 353, such as springs, are arranged between the outer sleeve ring 352 and the inner sleeve ring 351. The multiple groups of centering elastic members 353 are used to provide an elastic force for the self-locking shaft 18 to be coaxial with the self-locking sleeve 35, so that the self-locking shaft 18 and the self-locking sleeve 35 are coaxially arranged without external force. At the same time, the self-locking A locking cam 181 is fixedly connected to one side of the rotating shaft 18 close to the laser output port 11. The locking cam 181 can be an elastic structure. A plurality of engaging grooves 354 are arranged in the inner wall of the self-locking sleeve 35. The locking cam 181 engages with the engaging grooves 354. When subjected to external impact, especially when the front of the laser output port 11 is impacted, the explosion-proof housing 1 can relatively retreat, and the locking cam 181 leaves the engaging groove 354. At this time, if the impact force at the impact point is offset, the explosion-proof housing 1 can be driven to deflect, so that the laser output port 11 deviates from the direction of the flying stone point (the explosion-proof housing 1 of this module is thick in texture, so when it rotates, it can rotate a certain angle due to inertia).

[0048] In addition, in order to enhance the deflection effect of the explosion-proof shell 1 when flying stones hit, the present embodiment also provides the following scheme: the self-locking shaft 18 is arranged away from the laser output port 11, and the two sides of the explosion-proof shell 1 are fixedly connected with sailboards 17. Therefore, the laser output port 11 is at a greater distance from the rotation center, and it is easier to deflect when hit. It is almost impossible to have a deflection along the length direction of the laser output port 11, that is, along the force arm direction of the laser output port 11 from the self-locking shaft 18. Most of them will be offset. Even if there are flying stones sent along the length direction of the laser output port 11, the flying stones will hit the sailboard 17 and cause the explosion-proof shell 1 to be deflected. Try to make the side wall (with higher strength) of the explosion-proof shell 1 face the flying stone point to improve the protection effect.

[0049] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An infrared laser module with an explosion-proof structure, comprising an explosion-proof housing (1), an infrared laser generating assembly (2) and a base assembly (3), wherein the infrared laser generating assembly (2) is installed inside the explosion-proof housing (1), and is characterized in that: A convergence chamber (12) is provided on the top of the explosion-proof housing (1); A connecting pipe group (4) is further provided in the explosion-proof housing (1), and an air inlet area (13) is further provided on the explosion-proof housing (1). The air inlet area (13) is provided in an area of ​​the explosion-proof housing (1) away from the infrared laser generating assembly (2), and a partition plate (14) is fixedly installed in the air inlet area (13); The connecting pipe group (4) comprises an air outlet pipe structure (41) and an air inlet pipe structure (42), wherein the air outlet pipe structure (41) and the air inlet pipe structure (42) are connected via a connecting pipe (43), the top of the air outlet pipe structure (41) passes through the top wall of the convergence chamber (12) and is connected to the outside, and the air outlet pipe structure (41) is extended downward in the convergence chamber (12), and the air inlet pipe structure (42) passes through the partition plate (14) and is connected to the outside.

2. The infrared laser module with explosion-proof structure according to claim 1, characterized in that: The edge of the top wall of the convergence chamber (12) is fixedly connected to a blocking flange (121), the height of the blocking flange (121) being higher than the height of the air outlet pipe structure (41) located on the outer side of the top wall of the convergence chamber (12), so that the top of the convergence chamber (12) forms a water collecting trough under the blocking of the blocking flange (121), the air outlet pipe structure (41) is a metal heat-conducting structure, and the connecting pipe (43) is arranged in the explosion-proof housing (1) near the heating area of ​​the infrared laser generating assembly (2).

3. The infrared laser module with explosion-proof structure according to claim 2, characterized in that: A fan assembly is also provided in the air inlet area (13), the fan assembly comprising a fan (5), the fan (5) being rotatably provided in the air inlet area (13), each of the air inlet pipe structures (42) being located at the rear side of the fan (5), the fan assembly further comprising a fan motor (51), the fan motor (51) being fixedly mounted on the inner side of the partition plate (14), the output shaft of the fan motor (51) passing through the partition plate (14) and being fixedly connected to the fan (5), and a sealing member being provided between the output shaft of the fan motor (51) and the partition plate (14).

4. The infrared laser module with explosion-proof structure according to claim 3, characterized in that: The infrared laser generating assembly (2) comprises a laser output lens (21); the explosion-proof housing (1) is provided with a laser output port (11); the laser output port (11) is a protruding cylindrical structure; the laser output lens (21) of the infrared laser generating assembly (2) is located in the laser output port (11).

5. The infrared laser module with explosion-proof structure according to claim 4, characterized in that: A lens protection assembly is arranged in the laser output port (11), the lens protection assembly comprising a protection lens (16), a piston lens frame (161) is fixedly mounted on the outside of the protection lens (16), the piston lens frame (161) is slidably arranged in the laser output port (11), a sealing structure is arranged between the piston lens frame (161) and the laser output port (11), and a buffer elastic member (162) is arranged between the piston lens frame (161) and the laser output port (11).

6. The infrared laser module with explosion-proof structure according to claim 5, characterized in that: A pressure relief structure is provided in the explosion-proof housing (1), the pressure relief structure comprising a fixed air outlet pipe (411), the fixed air outlet pipe (411) also being connected to a connecting pipe (43) and an air inlet pipe structure (42), the fixed air outlet pipe (411) being fixedly installed in the top wall of the convergence chamber (12), and an elastic sac (44) being connected between the fixed air outlet pipe (411) and the connecting pipe (43).

7. The infrared laser module with explosion-proof structure according to claim 6, characterized in that: The pressure relief structure further comprises a floating air outlet pipe (412), the floating air outlet pipe (412) is also connected to a connecting pipe (43) and an air inlet pipe structure (42), a piston hole (122) is provided in the top wall of the convergence chamber (12), a floating piston (45) is fixedly installed on the outside of the floating air outlet pipe (412), the floating piston (45) is slidably installed in the piston hole (122) to form a piston structure, and an elastic limiter (123) is provided at the bottom of the piston hole (122).

8. The infrared laser module with explosion-proof structure according to claim 7, characterized in that: The base assembly (3) comprises a support plate (31), the explosion-proof housing (1) is mounted on the support plate (31), the base assembly (3) further comprises a mounting seat (32), a Z-axis rotation adjustment assembly (33) and a Y-axis rotation adjustment assembly (34), the Z-axis rotation adjustment assembly (33) being mounted on the mounting seat (32), the Y-axis rotation adjustment assembly (34) being mounted on the Z-axis rotation adjustment assembly (33), and the support plate (31) being fixedly mounted on the Y-axis rotation adjustment assembly (34).

9. The infrared laser module with explosion-proof structure according to claim 8, characterized in that: A self-locking shaft (18) is fixedly connected to the bottom of the explosion-proof housing (1), a self-locking sleeve (35) is fixedly installed in the support plate (31), the self-locking shaft (18) passes through the self-locking sleeve (35) and rotatably cooperates with the self-locking sleeve (35), an inner sleeve ring (351) is rotatably installed on the outer side of the self-locking shaft (18), an outer sleeve ring (352) is provided in the self-locking sleeve (35), the inner sleeve ring (351) is located on the inner side of the outer sleeve ring (352), and a plurality of groups of centering elastic members (353) are provided between the outer sleeve ring (352) and the inner sleeve ring (351), a locking convex key (181) is fixedly connected to a side of the self-locking shaft (18) close to the laser output port (11), a plurality of groups of engaging grooves (354) are provided in the inner wall of the self-locking sleeve (35), and the locking convex key (181) and the engaging grooves (354) are engaged with each other.

10. The infrared laser module with explosion-proof structure according to claim 9, characterized in that: The self-locking rotating shaft (18) is arranged away from the laser output port (11), and sailboards (17) are fixedly connected to both sides of the explosion-proof housing (1).

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