Heat dissipation type laser sensor

Abstract

The utility model discloses a heat dissipation type laser sensor, which relates to the technical field of laser sensors and comprises a protective shell, a mounting plate in threaded connection with the bottom end in the protective shell, a laser sensor body fixedly connected with the upper end of the mounting plate, a protective cover mounted at the upper end of the protective shell, and fixing mechanisms symmetrically mounted in the protective cover. Fixing grooves are symmetrically formed in the end, close to the protective shell, of the protective cover, pop-up mechanisms are symmetrically installed at the positions, close to the chamfers, of the upper end in the protective cover, a dust collection bin is installed in the protective cover, a filter plate is fixedly connected to the bottom end of the dust collection bin, and heat dissipation mechanisms are symmetrically installed at the upper end of the protective cover. By adopting the structure, dust and dirt can be effectively prevented from entering the laser sensor during heat dissipation, internal elements of the laser sensor can be protected from being damaged, meanwhile, a user can conveniently and regularly clean the internal dust and dirt, the heat dissipation performance of the laser sensor can be kept, the service life of the laser sensor can be prolonged, and the service life of the laser sensor can be prolonged. And the measurement precision is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser sensors, and particularly relates to a heat dissipation type laser sensor. Background Art

[0002] Laser sensor is a sensor that uses laser technology for measurement. It is mainly composed of laser, laser detector and measurement circuit. Its working principle is that the laser emitting diode first emits laser pulses at the target. After being reflected by the target, the laser scatters in all directions. Part of the scattered light returns to the sensor receiver and is received by the optical system and imaged onto the avalanche photodiode. The avalanche photodiode detects the light signal and converts it into a corresponding electrical signal. At the same time, according to the working material classification, lasers can be divided into solid lasers, gas lasers, liquid lasers and semiconductor lasers. Among them, semiconductor lasers are a younger type of laser, and the more mature one is gallium arsenide laser. In addition, new products in laser sensors also have the characteristics of high measurement accuracy, fast measurement speed, stable results, convenient system setup and configuration, compact design, easy installation and wiring, and suitable for various measurement tasks.

[0003] Publication number "CN218123958U" is a laser particle sensor. Its purpose is to provide a laser sensor with high performance and low cost. The utility model laser sensor includes a circuit board, on which a laser module and a silicon photodiode are installed, the laser module is located above the silicon photodiode, and a light trap structure with a concave angle is arranged below the silicon photodiode, and the light trap structure includes a downward sharp angle less than 60 degrees, and the sharp angle and the inner wall of the light trap structure form an isosceles triangle. The head of the closed concave angle light trap designed in the utility model laser sensor will form a large number of reflections of the light beam, and the absorption will be faster and more thorough. The rear lateral baffle further blocks the useless stray light, greatly reducing the impact of useless stray light on the silicon photodiode, and improving the performance of the sensor. With the improvement of sensor performance, rework and scrapping caused by insufficient overall performance of the sensor can be reduced, greatly saving production costs.

[0004] Although the above-mentioned utility model can reduce rework and scrapping caused by insufficient overall performance of the sensor as the performance of the sensor is improved, thereby greatly saving production costs, the heat generated during the operation of the laser sensor cannot be effectively dissipated, which will increase the temperature inside the sensor and affect its thermal stability, resulting in a decrease in the accuracy of the measurement results and even cause malfunctions. Currently, most traditional laser sensors are directly exposed to the outside, so that during the heat dissipation process of the laser sensor, external dust will enter the interior of the laser sensor, resulting in a decrease in the measurement accuracy of the laser sensor body, and even causing dust accumulation inside the laser sensor body, making it difficult to discharge heat, resulting in damage to the laser sensor body. Utility Model Content

[0005] In response to the problems mentioned in the background technology, the purpose of the utility model is to provide a heat dissipation type laser sensor to solve the problem that during the heat dissipation process of the laser sensor, external dust will enter the interior of the laser sensor, resulting in a decrease in the measurement accuracy of the laser sensor body, and even causing dust accumulation inside the laser sensor body, making it difficult to discharge heat, resulting in damage to the laser sensor body.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A heat dissipation type laser sensor, comprising a protective shell, a mounting plate is threadedly connected to the bottom end of the protective shell, a laser sensor body is fixedly connected to the upper end of the mounting plate, a protective cover is installed at the upper end of the protective shell, a fixing mechanism is symmetrically installed inside the protective cover, a fixing groove is symmetrically opened at one end of the protective cover close to the protective shell, a pop-up mechanism is symmetrically installed near the chamfer at the upper end of the protective cover, a dust collecting bin is installed inside the protective cover, a filter plate is fixedly connected to the bottom end of the dust collecting bin, and a heat dissipation mechanism is symmetrically installed on the upper end of the protective cover;

[0008] The fixing mechanism includes a first return spring, a moving block, a positioning column, a slider and a push block. A accommodating cavity is symmetrically opened inside the protective cover. One end of the accommodating cavity is fixedly connected to the first return spring, and the other end of the first return spring is fixedly connected to the moving block. One end of the moving block close to the first return spring is fixedly connected to the positioning column. The first return spring is sleeved on the outside of the positioning column. One end of the positioning column away from the moving block extends out of the fixed groove. One end of the moving block is fixedly connected to the slider, and the end of the slider away from the moving block is fixedly connected to the push block. The two ends of the dust collecting bin are symmetrically fixedly connected to the fixed blocks, and the fixed blocks are plug-in. The fixed groove Positioning grooves are symmetrically provided at both ends, the positioning grooves are plugged into the positioning columns, sliding grooves are symmetrically provided at both ends of the protective cover, the sliding grooves are connected to the accommodating cavity, the sliding grooves are slidably connected to the slider, connecting grooves are symmetrically provided at both ends inside the protective cover, connecting blocks are symmetrically fixedly connected at both ends of the dust collecting bin, and the connecting blocks are slidably connected to the connecting grooves, which can effectively prevent dust and dirt from entering the laser sensor during heat dissipation, help protect its internal components from damage, and facilitate users to regularly clean the internal dust and dirt, which helps to maintain the heat dissipation performance of the laser sensor, extend its service life, and ensure measurement accuracy.

[0009] As a preferred technical solution, the pop-up mechanism includes a built-in hole, a second return spring and a movable column. The built-in holes are symmetrically opened near the chamfer at the upper end of the protective cover. The second return spring is fixedly connected to one end of the built-in hole, and the other end of the second return spring is fixedly connected to the movable column. The movable column and the built-in hole are slidably connected, which can ensure that the dust collecting bin and the protective shell are tightly fitted when installed, effectively preventing dust, moisture and other contaminants from entering the sensor, thereby extending the service life of the sensor.

[0010] As a preferred technical solution, the upper end of the protective shell is symmetrically provided with limiting holes near the chamfers, and the bottom end of the protective cover is symmetrically fixedly connected with limiting columns near the chamfers. The limiting columns and the limiting holes are plugged in. The upper end of the protective shell is symmetrically fixedly connected with limiting blocks. The limiting blocks and the fixing grooves are plugged in. The two ends of the protective shell are symmetrically fixedly connected with positioning blocks. The upper end of the positioning blocks is provided with snap-fitting grooves. The two ends of the protective cover are symmetrically fixedly connected with snap-fitting blocks. The snap-fitting grooves and the snap-fitting blocks are snap-fitted, which is convenient for users to install and disassemble the protective shell and the protective cover. It is convenient for users to quickly open the protective shell and the protective cover, perform necessary operations on the sensor, and then easily install it again, thereby reducing maintenance time and cost, and making it easier to handle the laser sensor when it needs to be replaced or upgraded. Users can easily remove the old sensor and install the new sensor in place, thereby extending the service life of the sensor.

[0011] As a preferred technical solution, the heat dissipation mechanism includes a cooling fan, a ventilation pipe, a mounting frame and a heat dissipation net. Ventilation holes are symmetrically opened at the upper end of the protective cover, the end of the ventilation hole away from the protective cover is fixedly connected to the ventilation pipe, a cooling fan is installed inside the ventilation hole, a mounting frame is installed at the end of the ventilation pipe away from the cooling fan, a heat dissipation net is fixedly connected inside the mounting frame, and multiple heat dissipation holes are symmetrically opened at both ends of the protective shell, and a filter is fixedly connected inside the heat dissipation hole, which can effectively reduce the heat generated by the laser sensor during operation, maintain the stability of its internal temperature, prevent the sensor from performance degradation or failure due to overheating, thereby improving its working stability, and can reduce the influence of temperature on the measurement results, thereby improving the measurement accuracy.

[0012] As a preferred technical solution, a magnetic groove is symmetrically opened at one end of the installation frame close to the ventilation duct, and a magnetic block is symmetrically fixedly connected to the upper end of the ventilation duct. The magnetic block and the magnetic groove are magnetically connected, which facilitates the user to clean the cooling fan, cooling net and ventilation duct, and can keep the cooling system in good working condition, thereby extending the service life of the sensor.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] First, the utility model uses a fixing mechanism. When the dust bin needs to be installed, the user pushes the push block, and the moving block drives the positioning column to retract into the accommodating cavity. Then the dust bin and the protective cover are combined, and the fixing block is inserted into the fixing groove. Then the push block is released, and the first reset spring is reset. The moving block rebounds and drives the positioning column to pop out. The positioning column is plugged and fixed with the positioning groove to complete the installation of the dust bin. This can effectively prevent dust and dirt from entering the laser sensor during heat dissipation, which helps to protect its internal components from damage, and is convenient for users to regularly clean the internal dust and dirt, which helps to maintain the heat dissipation performance of the laser sensor, extend its service life, and ensure measurement accuracy.

[0015] Secondly, the utility model uses a pop-up mechanism, and when the dust bin needs to be disassembled, the user fixes the protective shell and the dust bin through the fixing mechanism, and the second reset spring resets, driving the movable column to rebound, and the movable column pushes the dust bin out of the protective cover, and the connecting block slides inside the connecting groove to complete the disassembly of the dust bin, which can ensure that the dust bin and the protective shell are tightly fitted when installed, effectively preventing dust, moisture and other pollutants from entering the sensor, thereby extending the service life of the sensor, and when the dust bin needs to be replaced or cleaned, the user can quickly pop out the dust bin, which simplifies the process, makes replacement or cleaning work more convenient and quick, and reduces cleaning costs;

[0016] Third, the utility model uses the heat dissipation mechanism. When the laser sensor body needs to be cooled, the user starts the cooling fan and controls the cooling fan inside the ventilation hole to rotate. The cooling fan blows the external wind into the protective shell through the ventilation pipe and the ventilation hole. At the same time, the external wind is filtered by the filter plate at the bottom of the dust collecting bin, and the filtered pure wind is blown to the laser sensor body to complete the heat dissipation of the laser sensor body. It can effectively reduce the heat generated by the laser sensor during operation, maintain the stability of its internal temperature, prevent the sensor from performance degradation or failure due to overheating, thereby improving its working stability, and can reduce the influence of temperature on the measurement results, thereby improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the protective cover of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the dust collecting bin of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the protective shell of the utility model;

[0021] Figure 5 It is a cross-sectional three-dimensional structural schematic diagram of the fixing mechanism of the utility model;

[0022] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the pop-up mechanism of the utility model;

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the heat dissipation mechanism of the utility model;

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the installation frame of the utility model.

[0025] Figure numerals: 1, protective shell, 2, mounting plate, 3, laser sensor body, 4, heat dissipation hole, 5, filter screen, 6, limit hole, 7, protective cover, 8, limit column, 9, connecting groove, 10, connecting block, 11, dust collecting bin, 12, filter plate, 13, accommodating chamber, 14, fixing mechanism, 141, first return spring, 142, moving block, 143, positioning column, 144, slider, 145, push block, 15, slide groove, 16. fixing slot, 17. fixing block, 18. positioning slot, 19. pop-up mechanism, 191. built-in hole, 192. second return spring, 193. moving column, 20. limiting block, 21. ventilation hole, 22. heat dissipation mechanism, 221. cooling fan, 222. ventilation pipe, 223. installation frame, 224. heat dissipation net, 23. positioning block, 24. snap-fit ​​slot, 25. snap-fit ​​block, 26. magnetic slot, 27. magnetic block. DETAILED DESCRIPTION

[0026] Example 1

[0027] refer to Figures 1 to 8 A heat dissipation type laser sensor described in this embodiment includes a protective shell 1, a mounting plate 2 is threadedly connected to the bottom end of the protective shell 1, a laser sensor body 3 is fixedly connected to the upper end of the mounting plate 2, a protective cover 7 is installed on the upper end of the protective shell 1, a fixing mechanism 14 is symmetrically installed inside the protective cover 7, a fixing groove 16 is symmetrically opened at one end of the protective cover 7 close to the protective shell 1, a pop-up mechanism 19 is symmetrically installed near the chamfer at the upper end of the protective cover 7, a dust collecting bin 11 is installed inside the protective cover 7, a filter plate 12 is fixedly connected to the bottom end of the dust collecting bin 11, and a heat dissipation mechanism 22 is symmetrically installed on the upper end of the protective cover 7;

[0028] The fixing mechanism 14 includes a first return spring 141, a moving block 142, a positioning column 143, a slider 144 and a push block 145. The protective cover 7 is symmetrically provided with an accommodating chamber 13. One end of the accommodating chamber 13 is fixedly connected to the first return spring 141, and the other end of the first return spring 141 is fixedly connected to the moving block 142. The end of the moving block 142 close to the first return spring 141 is fixedly connected to the positioning column 143. The first return spring 141 is sleeved on the outside of the positioning column 143, and the end of the positioning column 143 away from the moving block 142 extends out of the fixing groove 16. One end of the moving block 142 is fixedly connected to the slider 144, and the end of the slider 144 away from the moving block 142 is fixedly connected to the push block 145. The two ends of the dust collecting bin 11 are symmetrically fixedly connected to the fixing blocks 17, and the fixing blocks 17 are plug-in and fixed to the fixing groove 16. Positioning grooves 18 are symmetrically provided at both ends of the groove 16, and the positioning grooves 18 are plugged into the positioning columns 143. Slide grooves 15 are symmetrically provided at both ends of the protective cover 7, and the slide grooves 15 are communicated with the accommodating chamber 13. The slide grooves 15 and the slider 144 are slidably connected. Connecting grooves 9 are symmetrically provided at both ends of the protective cover 7. Connecting blocks 10 are symmetrically fixedly connected at both ends of the dust collecting bin 11, and the connecting blocks 10 are slidably connected to the connecting grooves 9. The user pushes the pushing block 145, and the moving block 142 drives the positioning column 143 to retract into the accommodating chamber 13, and then the dust collecting bin 11 and the protective cover 7 are merged, the fixed block 17 is plugged into the fixed groove 16, and then the pushing block 145 is released, the first reset spring 141 is reset, and the moving block 142 rebounds to drive the positioning column 143 to pop out, and the positioning column 143 is plugged and fixed with the positioning groove 18 to complete the installation of the dust collecting bin 11.

[0029] refer to Figure 6 The pop-up mechanism 19 includes a built-in hole 191, a second return spring 192 and a moving column 193. The built-in holes 191 are symmetrically opened near the chamfer at the upper end of the protective cover 7. One end of the built-in hole 191 is fixedly connected to the second return spring 192, and the other end of the second return spring 192 is fixedly connected to the moving column 193. The moving column 193 is slidably connected to the built-in hole 191. When the personnel finish fixing the protective shell 1 and the dust collecting bin 11 through the fixing mechanism 14, the second return spring 192 is reset, driving the moving column 193 to rebound, and the moving column 193 pushes the dust collecting bin 11 out of the protective cover 7 upward. At the same time, the connecting block 10 slides inside the connecting groove 9 to complete the disassembly of the dust collecting bin 11.

[0030] refer to Figures 2 to 4, the upper end of the protective shell 1 is symmetrically provided with limiting holes 6 near the chamfer, the bottom end of the protective cover 7 is symmetrically fixedly connected with limiting columns 8 near the chamfer, the limiting columns 8 are plugged into the limiting holes 6, the upper end of the protective shell 1 is symmetrically fixedly connected with limiting blocks 20, the limiting blocks 20 are plugged into the fixing groove 16, the two ends of the protective shell 1 are symmetrically fixedly connected with positioning blocks 23, the upper end of the positioning blocks 23 is provided with a snap-fitting groove 24, the two ends of the protective cover 7 are symmetrically fixedly connected with snap-fitting blocks 25, the snap-fitting groove 24 and the snap-fitting block 25 are snap-fitted, the user combines the protective cover 7 with the protective shell 1, inserts the limiting columns 8 into the limiting holes 6, inserts the positioning blocks 23 into the fixing groove 16, and snaps the snap-fitting blocks 25 into the snap-fitting groove 24, thereby completing the installation of the protective cover 7 and the protective shell 1.

[0031] refer to Figures 7 and 8 , the heat dissipation mechanism 22 includes a heat dissipation fan 221, a ventilation pipe 222, a mounting frame 223 and a heat dissipation net 224, the upper end of the protective cover 7 is symmetrically provided with ventilation holes 21, the end of the ventilation hole 21 away from the protective cover 7 is fixedly connected with the ventilation pipe 222, the heat dissipation fan 221 is installed inside the ventilation hole 21, the end of the ventilation pipe 222 away from the heat dissipation fan 221 is installed with a mounting frame 223, the heat dissipation net 224 is fixedly connected inside the mounting frame 223, a plurality of heat dissipation holes 4 are symmetrically provided at both ends of the protective shell 1, and a filter net 5 is fixedly connected inside the heat dissipation hole 4, the user starts the heat dissipation fan 221, controls the heat dissipation fan 221 inside the ventilation hole 21 to rotate, the heat dissipation fan 221 blows the external wind into the protective shell 1 through the ventilation pipe 222 and the ventilation hole 21, and at the same time, the external wind is filtered by the filter plate 12 at the bottom of the dust collecting bin 11, and the filtered pure wind is blown to the laser sensor body 3, and the heat inside the protective shell 1 is discharged through the heat dissipation hole 4, thereby completing the heat dissipation of the laser sensor body 3.

[0032] refer to Figure 8 , a magnetic suction groove 26 is symmetrically opened at one end of the installation frame 223 close to the ventilation pipe 222, and a magnetic suction block 27 is symmetrically fixedly connected to the upper end of the ventilation pipe 222, and the magnetic suction block 27 and the magnetic suction groove 26 are magnetically connected. The user lifts up the installation frame 223, and the magnetic suction block 27 and the magnetic suction groove 26 are magnetically connected. Then, the cooling fan 221, the heat dissipation net 224 and the inside of the ventilation pipe 222 are cleaned, and the cleaning of the cooling fan 221, the heat dissipation net 224 and the inside of the ventilation pipe 222 is completed.

[0033] Principle and advantages of use: First, the user installs the laser sensor body 3 inside the protective shell 1 through the mounting plate 2, and then the user pushes the push block 145, and the moving block 142 drives the positioning column 143 to retract into the accommodating chamber 13, and then the dust bin 11 and the protective cover 7 are combined, and the fixed block 17 is inserted into the fixed groove 16. At the same time, the dust bin 11 presses against the moving column 193, and the moving column 193 moves and retracts into the built-in hole 191, and then the push block 145 is released, the first reset spring 141 is reset, and the moving block 142 rebounds to drive the positioning column 143 to pop out, and the positioning column 143 is plugged and fixed with the positioning groove 18 to complete the installation of the dust bin 11, and then the user The personnel combine the protective cover 7 with the protective shell 1, insert the limiting column 8 into the limiting hole 6, insert the positioning block 23 into the fixing groove 16, and engage the clamping block 25 with the clamping groove 24 to complete the installation of the protective cover 7 and the protective shell 1. The user starts the cooling fan 221 and controls the cooling fan 221 inside the ventilation hole 21 to rotate. The cooling fan 221 blows the external wind into the protective shell 1 through the ventilation pipe 222 and the ventilation hole 21. At the same time, the external wind is filtered by the filter plate 12 at the bottom of the dust collecting bin 11. The filtered pure wind is blown to the laser sensor body 3, and the heat inside the protective shell 1 is discharged through the heat dissipation hole 4, thereby completing the heat dissipation of the laser sensor body 3.

[0034] The utility model can effectively reduce the heat generated by the laser sensor during operation, maintain the stability of its internal temperature, prevent the sensor from experiencing performance degradation or malfunction due to overheating, and can effectively prevent dust and dirt from entering the laser sensor during heat dissipation, helping to protect its internal components from damage. At the same time, it is convenient for users to regularly clean internal dust and dirt, helping to maintain the heat dissipation performance of the laser sensor, extend its service life, and ensure measurement accuracy.

Claims

1. A heat dissipation laser sensor, comprising a protective shell, characterized in that: The bottom end of the protective shell is threadedly connected with a mounting plate, the upper end of the mounting plate is fixedly connected with a laser sensor body, the upper end of the protective shell is installed with a protective cover, a fixing mechanism is symmetrically installed inside the protective cover, a fixing groove is symmetrically opened at one end of the protective cover close to the protective shell, a pop-up mechanism is symmetrically installed near the chamfer at the upper end of the protective cover, a dust collecting bin is installed inside the protective cover, a filter plate is fixedly connected to the bottom end of the dust collecting bin, and a heat dissipation mechanism is symmetrically installed on the upper end of the protective cover; The fixing mechanism includes a first return spring, a moving block, a positioning column, a slider and a push block, a accommodating cavity is symmetrically opened inside the protective cover, one end of the accommodating cavity is fixedly connected to the first return spring, the other end of the first return spring is fixedly connected to the moving block, the end of the moving block close to the first return spring is fixedly connected to the positioning column, the first return spring is sleeved on the outside of the positioning column, the end of the positioning column away from the moving block extends out of the fixing groove, one end of the moving block is fixedly connected to the slider, and the end of the slider away from the moving block is fixedly connected to the push block.

2. A heat dissipation laser sensor according to claim 1, characterized in that: The two ends of the dust collecting bin are symmetrically fixedly connected with fixing blocks, the fixing blocks are plugged into the fixing grooves, and the two ends of the fixing grooves are symmetrically provided with positioning grooves, and the positioning grooves are plugged into the positioning posts.

3. The heat dissipation laser sensor according to claim 1, characterized in that: The protective cover is symmetrically provided with sliding grooves at both ends, the sliding grooves are communicated with the accommodating cavity, and the sliding grooves are slidably connected with the slider.

4. The heat dissipation laser sensor according to claim 1, characterized in that: The protective cover has connecting grooves symmetrically formed at both ends thereof, and the dust collecting bin has connecting blocks symmetrically fixedly connected at both ends thereof, wherein the connecting blocks are slidably connected to the connecting grooves.

5. The heat dissipation type laser sensor according to claim 1, characterized in that: The pop-up mechanism includes a built-in hole, a second return spring and a moving column. The built-in holes are symmetrically opened near the chamfer at the upper end of the protective cover. The second return spring is fixedly connected to one end of the built-in hole, and the moving column is fixedly connected to the other end of the second return spring. The moving column is slidably connected to the built-in hole.

6. The heat dissipation laser sensor according to claim 1, characterized in that: A plurality of heat dissipation holes are symmetrically provided at both ends of the protective shell, and a filter screen is fixedly connected inside the heat dissipation holes.

7. The heat dissipation laser sensor according to claim 1, characterized in that: The upper end of the protective shell is symmetrically provided with limiting holes near the chamfer, and the bottom end of the protective cover is symmetrically fixedly connected with limiting columns near the chamfer, and the limiting columns and the limiting holes are plug-connected.

8. The heat dissipation laser sensor according to claim 1, characterized in that: The upper end of the protective shell is symmetrically fixedly connected with a limit block, the limit block is plugged into the fixing groove, the two ends of the protective shell are symmetrically fixedly connected with positioning blocks, the upper end of the positioning block is provided with a snap-fitting groove, the two ends of the protective cover are symmetrically fixedly connected with snap-fitting blocks, the snap-fitting groove and the snap-fitting block are snap-fitted.

9. The heat dissipation laser sensor according to claim 1, characterized in that: The heat dissipation mechanism includes a cooling fan, a ventilation pipe, a mounting frame and a cooling net. Ventilation holes are symmetrically opened on the upper end of the protective cover. The ventilation pipe is fixedly connected to the end of the ventilation hole away from the protective cover. A cooling fan is installed inside the ventilation hole. A mounting frame is installed at the end of the ventilation pipe away from the cooling fan. The cooling net is fixedly connected to the mounting frame.

10. The heat dissipation laser sensor according to claim 9, characterized in that: A magnetic suction groove is symmetrically provided at one end of the installation frame close to the ventilation pipe, and a magnetic suction block is symmetrically fixedly connected to the upper end of the ventilation pipe, and the magnetic suction block is magnetically connected to the magnetic suction groove.

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