An automatic sand and dust environment simulation system

Abstract

This invention relates to the field of environmental simulation testing equipment technology, specifically disclosing an automated sandstorm environment simulation system. The system includes a main test chamber with a base installed at its bottom. A fixed plate is connected to the top of the base via a lifting frame. A placement plate is connected to the top of the fixed plate via a connecting column. A clamping mechanism is installed inside the placement plate. A rotating plate is positioned between the fixed plate and the placement plate. Cleaning mechanisms are installed on both sides of the rotating plate, and a shielding mechanism is installed above the cleaning mechanisms. A movable plate is installed on the top of the main test chamber, and a transfer mechanism is installed inside the movable plate. In this invention, before conducting sandstorm environment simulation testing on electronic devices, the electronic devices are placed on top of the placement plate. The clamping mechanism stabilizes the electronic devices, preventing them from shaking, shifting, or tipping over during testing. This meets the requirements for high-precision, high-stability automated sandstorm testing.

Description

Technical Field

[0001] This invention relates to the field of environmental simulation testing equipment technology, and specifically to an automated simulation system for sand and dust environments. Background Technology

[0002] An automated dust environment simulation system is a comprehensive experimental platform capable of automatically reproducing real dust environment conditions (such as wind speed, dust concentration, temperature, humidity, solar radiation, etc.) in a laboratory or test field. It is used to evaluate the performance, reliability, and durability of products, materials, equipment, or systems under dust environment conditions. The system's main components include a main test chamber, a dust supply and circulation system, a wind speed control system, a temperature, humidity, and radiation system, an intelligent control system, and an exhaust gas treatment system.

[0003] The main test chambers of existing automated dust environment simulation systems mostly only have simple support platforms or shelves, lacking adjustable, clamping, and positioning clamping and fixing devices. This makes it impossible to reliably fix and limit electronic equipment of different sizes and structures. During testing, the continuous impact of the dust-blowing airflow within the chamber on the tested equipment easily leads to problems such as shaking, displacement, tipping, and misalignment. Displacement of the equipment can obstruct the dust-blowing channel and disrupt the uniformity of the dust flow field, directly affecting the stability of test conditions and the accuracy of test results. Furthermore, sample shaking can cause loose interfaces, damage to the outer casing, and stress on internal components, leading to sample damage or distorted test data. Therefore, existing automated dust environment simulation systems cannot meet the requirements for high-precision and high-stability automated dust testing. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automated simulation system for sand and dust environments.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automated sandstorm environment simulation system includes a main test chamber. Both ends of the main test chamber are connected to a sandstorm supply and circulation system via pipes. A base is installed at the bottom of the main test chamber. A fixed plate is connected to the top of the base via a lifting frame. A placement plate is connected to the top of the fixed plate via a connecting column. The placement plate has a clamping mechanism for holding and fixing the electronic device to be tested inside. A rotating plate is provided between the fixed plate and the placement plate. Cleaning mechanisms for automatically cleaning the inside of the main test chamber are provided on both sides of the rotating plate. A shielding mechanism for partially shielding and protecting the electronic device is provided above the cleaning mechanism and around the clamping mechanism. A movable plate is slidably installed on the top of the main test chamber. A transfer mechanism for automatically loading and unloading the electronic device to be tested is provided inside the movable plate.

[0006] Optionally, the main test chamber is rotatably mounted with double doors on the front, each door having an observation window inside. The inner walls on both sides of the top of the main test chamber are provided with first sliding grooves, each of which contains a first slider. The ends of the two first sliders away from the first sliding grooves are connected to a moving plate.

[0007] Optionally, the transfer mechanism includes a mounting frame installed on the top of the movable plate, a cylinder installed inside the mounting frame, a first motor installed on the top of the mounting frame, the output end of the first motor passing through the mounting frame and connected to the cylinder, the telescopic end of the cylinder passing through the movable plate and connected to a rectangular plate, a first double-ended screw rotatably installed inside the rectangular plate, and two limiting plates threaded on the outer wall of the first double-ended screw.

[0008] Optionally, each of the two limiting plates is equipped with a blower head at its bottom end, and the ends of the two blowers that are far apart are provided with a connector for connecting to a preset external fan output end.

[0009] Optionally, the clamping mechanism includes two clamping plates, with railings installed around the top of the placement plate. Electric telescopic rods are installed on both outer walls of the railings, and the telescopic ends of the two electric telescopic rods are connected to the clamping plates adjacent to them.

[0010] Optionally, a second motor is installed at the bottom of the placement plate, a gear is installed at the output end of the second motor, a gear ring is installed on the inner wall of the rotating plate, the gear ring meshes with the gear, a rotating part is installed at the bottom of the rotating plate, and a rotating groove is opened on the top of the fixed plate to rotate with the rotating part.

[0011] Optionally, the cleaning mechanism includes fixed rods installed on the outer walls of both sides of the rotating plate. A second sliding groove is provided on the outer wall of the side of the two fixed rods that are far apart from each other. A second slider is installed inside the two second sliding grooves. A mounting seat is rotatably installed at the end of the two second sliders that is far away from the second sliding grooves. A rotating rod is rotatably installed inside the two mounting seats.

[0012] Optionally, a second double-ended screw is rotatably mounted inside the rotating rod, and two movable seats are threadedly mounted on the outer wall of the second double-ended screw. A connecting rod is rotatably mounted on the end of each movable seat away from the second double-ended screw.

[0013] Optionally, a mounting plate is rotatably mounted on the ends of the two connecting rods away from the movable seat, and two cleaning brushes are mounted on the outer wall of the mounting plate on the side away from the two connecting rods.

[0014] Optionally, the shielding mechanism includes a base plate installed on the top of two fixed rods, a retractable shielding curtain installed on the top of the base plate, a fixed frame installed on the top of the shielding curtain, and two protrusions installed on the outer walls of the fixed frame near the two cleaning mechanisms on both sides.

[0015] The beneficial effects of this invention are: 1. In this invention, before conducting sand and dust environment simulation tests on electronic devices, the electronic devices are placed on top of the placement plate and held stably by a clamping mechanism. This ensures that the electronic devices will not shake, shift, or tip over during the testing process inside the main test chamber, thus avoiding any impact on the stability of the testing conditions inside the main test chamber and the accuracy of the test results. This can meet people's requirements for high-precision and high-stability automated sand and dust testing.

[0016] 2. In this invention, the set transfer mechanism can automatically transfer the electronic equipment to the main test chamber for testing, and automatically transfer it out of the main test chamber after testing, thereby improving the testing efficiency of the electronic equipment; and during the testing process, the position of the electronic equipment can be flexibly changed so that multiple sides of the electronic equipment can come into contact with sand and dust during the testing process, thereby improving the comprehensiveness of the test results.

[0017] 3. In this invention, the cleaning mechanism can automatically clean the four inner walls of the main test chamber after the electronic equipment test is completed, which greatly reduces the amount of manual labor required to clean the inside of the main test chamber and improves the cleaning efficiency of the inside of the main test chamber.

[0018] 4. In this invention, because the mounting plates of the two cleaning mechanisms are within a specified range, they can push the fixed frame of the shielding mechanism upward to any height, thereby causing the shielding curtain to automatically unfold upward to any length. When the electronic device is being tested inside the main test chamber, controlling the mounting plates of the two cleaning mechanisms to drive the shielding curtain of the shielding mechanism to unfold upward to the specified length provides a shielding effect on the lower half of the electronic device. This allows the exposed upper half of the electronic device to undergo relevant dust environment testing, enabling individual testing of specific areas of the electronic device and precise dust prevention treatment for non-tested parts. This saves dust, reduces energy consumption, shortens testing time, increases automation, improves testing targeting, and better fits actual usage scenarios. It can strengthen the assessment of key dust-prone parts of the upper half of the electronic device, such as interfaces, heat dissipation vents, screens, and buttons, thereby indirectly improving the applicability of the shielding mechanism in the electronic device testing process. Attached Figure Description

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of an automated sandstorm environment simulation system proposed in this invention; Figure 2 for Figure 1 A schematic diagram of the structure after the double doors are opened; Figure 3 This is a schematic diagram of the internal structure of the main test chamber in this invention; Figure 4 This is a schematic diagram of the transfer mechanism in this invention; Figure 5 This is a cross-sectional view of the rectangular plate in this invention; Figure 6 This is a schematic diagram of the structure of the present invention excluding the main test chamber and the transfer mechanism; Figure 7 for Figure 6 Structural sectional view of the bottom plate and the shielding curtain; Figure 8 This is a cross-sectional view of the structure of the fixing plate and the placement plate in this invention; Figure 9 This is a schematic diagram of the rotating plate in this invention; Figure 10 for Figure 9 A structural diagram from another angle; Figure 11 This is a schematic diagram of the cleaning mechanism in this invention; Figure 12 This is a schematic diagram of the shielding mechanism in this invention.

[0021] In the diagram: 1. Main test chamber; 2. Pipeline; 3. Double door; 4. Moving plate; 5. Mounting frame; 6. First motor; 7. Cylinder; 8. Base; 9. Lifting frame; 10. First slide rail; 11. First slider; 12. Rectangular plate; 13. Limiting plate; 14. Air blower head; 15. First double-ended screw; 16. Fixing plate; 17. Fixing rod; 18. Placement plate; 19. Clamping plate; 20. Electric telescopic rod; 21. Base plate; 22. Rotating plate; 23. Rotating groove; 24. Second motor; 25. Gear; 26. Second slide rail; 27. Gear ring; 28. Rotating part; 29. ​​Second slider; 30. Mounting seat; 31. Rotating rod; 32. Second double-ended screw; 33. Moving seat; 34. Connecting rod; 35. Mounting plate; 36. Cleaning brush; 39. Shielding curtain; 40. Fixing frame; 41. Protrusion. Detailed Implementation

[0022] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Reference Figures 1-12An automated simulation system for a dust storm environment includes a main test chamber 1. Both ends of the main test chamber 1 are connected to a dust storm supply and circulation system via pipes 2. A base 8 is installed at the bottom of the main test chamber 1. A fixed plate 16 is connected to the top of the base 8 via a lifting frame 9. A placement plate 18 is connected to the top of the fixed plate 16 via a connecting column. The placement plate 18 has a clamping mechanism for holding and fixing the electronic equipment to be tested inside. A rotating plate 22 is provided between the fixed plate 16 and the placement plate 18. Cleaning mechanisms for automatically cleaning the inside of the main test chamber 1 are provided on both sides of the rotating plate 22. A shielding mechanism for partially shielding and protecting the electronic equipment is provided above the cleaning mechanism and around the clamping mechanism. A movable plate 4 is slidably installed on the top of the main test chamber 1. A transfer mechanism for automatically loading and unloading the electronic equipment to be tested is provided inside the movable plate 4.

[0024] As a technical optimization of the present invention, a double door 3 is rotatably installed on the front of the main test chamber 1. Each double door 3 has an observation window inside. First sliding grooves 10 are formed on the inner walls of both sides of the top of the main test chamber 1. First sliders 11 are installed inside each of the two first sliding grooves 10, and the ends of the two first sliders 11 furthest from the first sliding grooves 10 are connected to a moving plate 4. A first linear motor is pre-installed inside each of the two first sliding grooves 10. The two first linear motors can drive the two first sliders 11 to move back and forth within their respective first sliding grooves 10, thereby causing the moving plate 4 and other components to move and adjust together.

[0025] As an optimized technical solution of the present invention, the transfer mechanism includes a mounting frame 5 installed on the top of the movable plate 4. A cylinder 7 is installed inside the mounting frame 5, and a first motor 6 is installed on the top of the mounting frame 5. The output end of the first motor 6 passes through the mounting frame 5 and is connected to the cylinder 7. The telescopic end of the cylinder 7 passes through the movable plate 4 and is connected to a rectangular plate 12. A first double-ended screw 15 is rotatably installed inside the rectangular plate 12, and two limiting plates 13 are threaded on the outer wall of the first double-ended screw 15. After the first motor 6 is started, it can drive the cylinder 7 and the rectangular plate 12 installed at its telescopic end to rotate and adjust together. During the telescopic process, the telescopic end of the cylinder 7 can drive the rectangular plate 12 to move up and down inside the main test chamber 1. A first servo motor is preset on one side of the outer wall of the rectangular plate 12. The output end of the first servo motor is connected to one end of the first double-ended screw 15, thereby driving the two limiting plates 13 to move and adjust in a direction that is closer or farther away from each other.

[0026] As a technical optimization of the present invention, each of the two limiting plates 13 is equipped with a blower head 14 at its bottom end, and each of the two blower heads 14 has a connector for connecting to an externally preset fan output end. The externally preset fan output end is connected to the connector through an adjustable hose, so that the blower head 14 can continuously discharge air downwards.

[0027] As an optimized technical solution of the present invention, the clamping mechanism includes two clamping plates 19. A railing is installed around the top perimeter of the placement plate 18, and an electric telescopic rod 20 is installed on each of the outer walls of the railing. The telescopic ends of the two electric telescopic rods 20 are connected to their adjacent clamping plates 19. During the telescopic process, the telescopic ends of the two electric telescopic rods 20 can drive the corresponding clamping plates 19 to move and adjust on the top of the placement plate 18. After both clamping plates 19 move towards each other, they can clamp and fix the electronic device placed on the top of the placement plate 18.

[0028] As a technical optimization of the present invention, a second motor 24 is installed at the bottom of the placement plate 18, and a gear 25 is installed at the output end of the second motor 24. A gear ring 27 is installed on the inner wall of the rotating plate 22, and the gear ring 27 meshes with the gear 25. A rotating part 28 is installed at the bottom of the rotating plate 22, and a rotating groove 23 is opened on the top of the fixed plate 16 to rotate and cooperate with the rotating part 28. After the second motor 24 is started, it can drive the gear 25 to rotate, and in turn drive the gear ring 27 and the rotating plate 22 to rotate and adjust.

[0029] As a technical optimization of the present invention, the cleaning mechanism includes fixed rods 17 installed on the outer walls of both sides of the rotating plate 22. The outer walls of the two fixed rods 17 that are far apart are provided with second sliding grooves 26. The interiors of the two second sliding grooves 26 are each equipped with second sliders 29. The ends of the two second sliders 29 that are far apart from the second sliding grooves 26 are each rotatably equipped with mounting seats 30. The interiors of the two mounting seats 30 are each rotatably equipped with rotating rods 31. Each of the two second slide grooves 26 has a second linear motor pre-installed inside. The two second linear motors can drive the two second sliders 29 to move back and forth inside the corresponding second slide grooves 26, thereby driving the two mounting seats 30 and the rotating rod 31 to move and adjust synchronously. Each of the two second sliders 29 has a second servo motor pre-installed inside. The output ends of the two second servo motors are respectively connected to the rotating parts of the corresponding mounting seats 30, thereby driving the two mounting seats 30 and the rotating rod 31 to rotate and adjust. Each of the two mounting seats 30 has a third servo motor pre-installed on one side of its outer wall. The output ends of the two third servo motors are respectively connected to the rotating parts of one end of the two rotating rods 31, thereby driving the two rotating rods 31 to rotate and adjust inside the corresponding mounting seats 30.

[0030] As a technical optimization of the present invention, a second double-ended screw 32 is rotatably installed inside the rotating rod 31, and two movable seats 33 are threadedly installed on the outer wall of the second double-ended screw 32. A connecting rod 34 is rotatably installed at the end of each movable seat 33 away from the second double-ended screw 32.

[0031] As a technical optimization of the present invention, a mounting plate 35 is rotatably mounted on the ends of the two connecting rods 34 away from the movable seats 33. Two cleaning brushes 36 are mounted on the outer wall of the mounting plate 35 away from the two connecting rods 34. A fourth servo motor is preset inside the rotating rod 31. The output end of the fourth servo motor is connected to one end of the second double-headed screw 32, thereby driving the second double-headed screw 32 to rotate inside the rotating rod 31, driving the two movable seats 33 to move towards or away from each other for adjustment. This allows the two connecting rods 34 to rotate towards each other as the two movable seats 33 move towards each other, pushing the mounting plate 35 and cleaning brushes 36 away from the rotating rod 31. Conversely, as the two movable seats 33 move away from each other, the mounting plate 35 and cleaning brushes 36 are pulled towards the rotating rod 31 to reset.

[0032] As a technical optimization of the present invention, the shielding mechanism includes a base plate 21 mounted on top of two fixed rods 17. A retractable shielding curtain 39 is mounted on the top of the base plate 21, and a fixed frame 40 is mounted on the top of the shielding curtain 39. Two protrusions 41 are mounted on the outer walls of the fixed frame 40 near the two cleaning mechanisms. By driving the fixed frame 40 to move upward, the shielding curtain 39 can be pulled upward and unfolded into a usable state, providing shielding and protection for the electronic equipment on top of the placement plate 18.

[0033] The motors used in this embodiment are all existing dustproof and waterproof motors with IP65 or higher rating. Telescopic dustproof sleeves are fitted on the surfaces of the first double-ended screw 15 and the second double-ended screw 32. Dustproof covers are also provided between the inner ends of the first slide groove 10 and the second slide groove 26 and the outer walls of the corresponding first slider 11 and the second slider 29. The surfaces of the first slide groove 10, the second slide groove 26, the first slider 11 and the second slider 29 are all treated with hard anodizing or chrome plating to improve wear resistance. Telescopic dustproof sleeves are fitted on the outer walls of the telescopic ends of the lifting frame 9, the two electric telescopic rods 20 and the cylinder 7. Dustproof or anti-dust wear treatment is provided on the surfaces or materials of other related components to ensure that multiple components located inside the main test chamber 1 can be used normally in the simulated dust environment and are not adversely affected by the simulated dust environment inside the main test chamber 1.

[0034] In this invention, when the user uses the device, the pipes 2 at both ends of the main test chamber 1 are connected to the relevant sand and dust supply and circulation systems, respectively. Then, the two first sliders 11 are controlled to move outward together within their corresponding first sliding grooves 10, causing multiple components, including the moving plate 4, to move and adjust. After the two limiting plates 13 move outward from inside the main test chamber 1, the telescopic end of the control cylinder 7 extends downward, moving the two limiting plates 13 to both sides of the electronic device to be tested. As the first double-headed screw 15 moves the two limiting plates 13 towards each other, the two limiting plates 13 can clamp and fix the electronic device. The telescopic end of the control cylinder 7 retracts upward a certain length, ensuring that the electronic device clamped by the two limiting plates 13 is securely held in place. The bottom of the device is higher than the placement plate 18. Then, the two first sliders 11 are controlled to move and reset inside the corresponding first slide grooves 10, which drives the moving plate 4 and the clamped electronic device to move together into the main test chamber 1. At this time, the electronic device is directly above the placement plate 18. The telescopic end of the control cylinder 7 extends downward again, and the electronic device is placed on the top of the placement plate 18. Then, the telescopic ends of the two electric telescopic rods 20 are controlled to extend together, which drives the two clamping plates 19 to clamp and fix the electronic device placed on the top of the placement plate 18. This allows the transfer mechanism to automatically transfer the electronic device to be tested into the main test chamber 1 and clamp and fix it, ensuring that the electronic device is relatively stable during the subsequent test and will not shake or shift.

[0035] After the electronic device is clamped on the top of the placement plate 18 by the clamping mechanism, the lifting frame 9 can be started, pushing the fixing plate 16 and the placement plate 18 and other components to move upward and adjust together inside the main test chamber 1. This ensures that the electronic device to be tested is in the center position inside the main test chamber 1, so that the sand and dust that is constantly circulating inside the main test chamber 1 can come into uniform contact with the electronic device, and realize a more accurate sand and dust environment simulation test of the electronic device by the main test chamber 1.

[0036] During testing of the electronic equipment inside the main test chamber 1, if it is necessary to change the position of the electronic equipment to ensure that multiple sides of the electronic equipment can contact the sand and dust during the test, thereby improving the accuracy of the test in the simulated sand and dust environment, the cylinder 7 located directly above the electronic equipment can be controlled to extend downwards again, so that the two limiting plates 13 are respectively located on both sides of the electronic equipment. The two limiting plates 13 are controlled to move towards each other and clamp and fix the two sides of the electronic equipment. Then, the extension ends of the two electric telescopic rods 20 are controlled to retract together, causing the two clamping plates 19 to release first. The electronic device is clamped and fixed, and then the telescopic end of the cylinder 7 is controlled to retract upward by a certain length, moving the electronic device to a position higher than the placement plate 18. Then, the first motor 6 is controlled to drive the cylinder 7 and other components to rotate, which synchronously drives the electronic device clamped by the two limit plates 13 to rotate and adjust. Finally, the telescopic end of the cylinder 7 is controlled to extend downward, so that the rotated and adjusted electronic device falls back onto the top of the placement plate 18 and is clamped and fixed by the clamping plate 19 controlled by the two electric telescopic rods 20. This allows multiple sides of the electronic device to come into contact with sand and dust during the test, thereby improving the comprehensiveness of the test results.

[0037] After the electronic equipment has been tested inside the main test chamber 1, sand and dust will inevitably adhere to the inner wall of the main test chamber 1, requiring cleaning. First, control one of the second double-headed screws 32 near the double door 3 to move the two moving seats 33 towards each other, causing the two connecting rods 34 to rotate towards each other, pushing the mounting plate 35 towards the double door 3 until the two cleaning brushes 36 contact the inner wall of the double door 3. Then, control the lifting frame 9 to move up and down, causing the two cleaning brushes 36 to automatically clean the sand and dust adhering to the inner wall of the double door 3. The corresponding second slider 29 moves back and forth inside the second slide groove 26, causing the positions of the two cleaning brushes 36 to be adjusted laterally. After the lifting frame 9 moves the two cleaning brushes 36 up and down to the highest and lowest positions, the control rotating rod 31 rotates and adjusts inside the mounting base 30, so that the two cleaning brushes 36 can clean both the higher and lower positions of the inner wall of the double door 3, realizing comprehensive automatic cleaning of the inner wall of the double door 3, and avoiding the phenomenon that some sand and dust fall down onto the surface of the workers' bodies when the double door 3 is opened.

[0038] After one of the cleaning units cleans the inner wall of the double door 3, the staff opens the double door 3 to remove the tested electronic equipment from the main test chamber 1. Since some sand and dust may adhere to the surface of the electronic equipment, it will hinder the subsequent manual or related visual inspection equipment from detecting the wear and tear of the electronic equipment. At this time, after the extension and retraction ends of the two electric telescopic rods 20 drive the clamping plate 19 to retract, the extension and retraction ends of the cylinder 7 are controlled to extend downward, driving the two limit plates 13 to move to a position close to the electronic equipment. Then, the external preset fan is controlled to start, so that the two blowers 14 can blow the fan output end. The generated airflow is discharged downwards to the surface of the electronic device. In conjunction with the first double-headed screw 15, it drives the two limiting plates 13 and the blower head 14 to move back and forth, and the first motor 6 drives the two blower heads 14 to rotate, so as to thoroughly blow away and clean the sand and dust attached to the surface of the electronic device, achieving the effect of automatic cleaning of the surface of the tested electronic device. Then, after the double door 3 is opened, the two limiting plates 13 clamp and fix the electronic device again. With the help of other components, the tested electronic device is transferred from the inside of the main test chamber 1 to the outside, achieving the effect of automatic unloading of the tested electronic device.

[0039] After the transfer mechanism removes the tested electronic equipment from the main test chamber 1, the other three side walls of the main test chamber 1 will also be covered with sand and dust. At this time, another cleaning mechanism located away from the double door 3 can be controlled to repeat the cleaning steps for the double door 3. After cleaning one side wall, the second motor 24 is started to drive the gear 25 and the gear ring 27 to rotate together. This, in turn, drives the rotating plate 22 and the two fixed rods 17 to rotate 90 degrees. This will cause the cleaning mechanism located away from one end of the two fixed rods 17 to rotate closer to the other two side walls of the main test chamber 1. The cleaning mechanism continues to repeat the above steps. The double-door 3 inner wall cleaning process enables the cleaning of the other two side walls of the main test chamber 1, achieving automatic cleaning of all four inner walls of the main test chamber 1. The top of the main test chamber 1 can be accessed by a person standing on the placement plate 18, using the extension of the lifting frame 9 to move the worker upwards synchronously inside the main test chamber 1. The worker then uses relevant cleaning tools to clean the interior. Finally, the worker can manually remove the accumulated sand and dust from the bottom of the main test chamber 1. This greatly reduces the workload of cleaning the interior of the main test chamber 1 and improves the cleaning efficiency.

[0040] Since observation windows are provided inside both double doors 3, and the main test chamber 1 is used for testing related electronic equipment for a long time, in order to prevent sand and dust from adhering to the inner wall surface of the observation windows and affecting the staff's observation of the status of the electronic equipment being tested in the main test chamber 1, one of the mounting seats 30 near the double doors 3 can be rotated 90 degrees, causing the rotating rod 31 and other components to rotate to a vertical position. As the two moving seats 33 move towards each other, they drive the two connecting rods 34 to push the cleaning brush 36 to abut against the inner wall of the double doors 3. With the help of the second slider 29 moving back and forth inside the second slide groove 26, the two cleaning brushes 36 can be driven to move back and forth in a vertical position to perform horizontal cleaning of the inner wall of the two observation windows, so that the staff can observe the electronic equipment inside the main test chamber 1 in real time.

[0041] If the electronic equipment being tested inside the main test chamber 1 is affected by sand and dust, causing it to catch fire, in order to prevent the burning electronic equipment from damaging the main test chamber 1, the two rotating rods 31 can be controlled to rotate upwards by 90 degrees together inside the corresponding mounting base 30, thereby driving the two mounting plates 35 to rotate below the two protrusions 41 respectively. At this time, as the two second double-headed screws 32 drive the two moving seats 33 to move towards each other, the two connecting rods 34 drive the mounting plates 35 to move upwards, so that the two mounting plates 35 can push the two protrusions 41 above them respectively, driving the fixed frame 40 to move upwards for adjustment, and in turn pulling the shielding curtain 39 to unfold above the placement plate 18. Made of fire-resistant material, it can isolate the electronic equipment on the top of the placement plate 18 from fire. After the staff cuts off the power to the electronic equipment and the main test chamber 1, they connect the hoses of the two blowers 14 to the pre-set conveying equipment. The conveying equipment can deliver the fire extinguishing dry powder to the inside of the two blowers 14 and spray it downward into the inside of the shielding curtain 39 to quickly extinguish the fire on the electronic equipment. Finally, the double door 3 is opened manually, and the fire-extinguished electronic equipment is quickly transferred and discharged from the top of the placement plate 18 with the help of the transfer mechanism. This facilitates the rapid handling of unexpected situations that may occur during the testing of such electronic equipment and improves the safety of the electronic equipment in the simulated sand and dust environment.

[0042] Meanwhile, since the mounting plates 35 of the two cleaning mechanisms are within a specified range, they can push the fixed frame 40 upward to any height, thereby causing the shielding curtain 39 to automatically unfold upward to any length. When the electronic device is tested inside the main test chamber 1, the mounting plates 35 of the two cleaning mechanisms control the shielding curtain 39 of the shielding mechanism to unfold upward to the specified length, thus shielding the lower half of the electronic device. This allows the exposed upper half of the electronic device to undergo relevant dust environment testing, enabling individual testing of local areas of the electronic device and precise dust prevention treatment of non-tested parts. This saves dust, reduces energy consumption, shortens testing time, increases automation, improves testing targeting, and better fits actual usage scenarios. It can strengthen the assessment of key dust-prone parts of the upper half of the electronic device, such as interfaces, heat dissipation vents, screens, and buttons, thereby indirectly improving the applicability of the shielding mechanism in the electronic device testing process.

[0043] Depending on the different structural characteristics of the electronic devices to be tested, openings can be set at different parts of the shielding curtain 39, and a fabric of the same material as the shielding curtain 39 can be detachably installed inside the openings by zippers or Velcro. After the two cleaning mechanisms push the shielding curtain 39 of the shielding mechanism upward, the fabric of the shielding curtain 39 can be manually removed from specific parts of the shielding curtain 39, so that the sand and dust inside the main test chamber 1 can come into contact with the designated test parts of the electronic devices to be tested through the openings of the specific parts of the shielding curtain 39. This achieves the effect of testing the designated test parts of different electronic devices separately, further improving the applicability of the shielding mechanism.

[0044] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automated simulation system for sandstorm environments, comprising a main test chamber (1), characterized in that, Both ends of the main test chamber (1) are connected to the relevant sand and dust supply and circulation system through the set pipes (2). The bottom of the main test chamber (1) is equipped with a base (8). The top of the base (8) is connected to a fixed plate (16) through a set lifting frame (9). The top of the fixed plate (16) is connected to a placement plate (18) through a set connecting column. The placement plate (18) is equipped with a clamping mechanism for clamping and fixing the electronic equipment to be tested. A rotating plate (22) is set between the fixed plate (16) and the placement plate (18). Both sides of the rotating plate (22) are equipped with a cleaning mechanism for automatically cleaning the inside of the main test chamber (1). Above the cleaning mechanism and around the clamping mechanism, a shielding mechanism is set for partially shielding and protecting the electronic equipment. A movable plate (4) is slidably installed on the top of the main test chamber (1). The movable plate (4) is equipped with a transfer mechanism for automatically loading and unloading the electronic equipment to be tested. The transfer mechanism includes a mounting frame (5) installed on the top of the movable plate (4), a cylinder (7) is installed inside the mounting frame (5), a first motor (6) is installed on the top of the mounting frame (5), the output end of the first motor (6) passes through the mounting frame (5) and is connected to the cylinder (7), the telescopic end of the cylinder (7) passes through the movable plate (4) and is connected to a rectangular plate (12), a first double-headed screw (15) is rotatably installed inside the rectangular plate (12), and two limiting plates (13) are threaded on the outer wall of the first double-headed screw (15). The bottom ends of the two limiting plates (13) are each equipped with a blower head (14), and the ends of the two blowers (14) that are far apart are each provided with a connector for connecting to an externally preset fan output end.

2. The automated simulation system for sandstorm environments according to claim 1, characterized in that, The main test chamber (1) is equipped with a double door (3) on its front side. The double door (3) is equipped with an observation window. The inner walls on both sides of the top of the main test chamber (1) are provided with a first slide groove (10). The two first slide grooves (10) are equipped with a first slider (11). The ends of the two first sliders (11) away from the first slide grooves (10) are connected to the moving plate (4).

3. The automated simulation system for sandstorm environments according to claim 1, characterized in that, The clamping mechanism includes two clamping plates (19). A railing is installed around the top of the placement plate (18). Electric telescopic rods (20) are installed on both outer walls of the railing. The telescopic ends of the two electric telescopic rods (20) are connected to the clamping plates (19) that are close to them.

4. The automated simulation system for sandstorm environments according to claim 1, characterized in that, The bottom end of the placement plate (18) is equipped with a second motor (24), the output end of the second motor (24) is equipped with a gear (25), the inner wall of the rotating plate (22) is equipped with a gear ring (27), the gear ring (27) and the gear (25) mesh with each other, the bottom end of the rotating plate (22) is equipped with a rotating part (28), and the top of the fixed plate (16) is provided with a rotating groove (23) that rotates with the rotating part (28).

5. The automated simulation system for sandstorm environments according to claim 1, characterized in that, The cleaning mechanism includes fixed rods (17) installed on the outer walls of both sides of the rotating plate (22). The outer walls of the two fixed rods (17) that are far apart are provided with second sliding grooves (26). The interior of the two second sliding grooves (26) is provided with second sliders (29). The end of the two second sliders (29) that is far away from the second sliding grooves (26) is rotatably mounted with a mounting seat (30). The interior of the two mounting seats (30) is rotatably mounted with a rotating rod (31).

6. The automated simulation system for sandstorm environments according to claim 5, characterized in that, The rotating rod (31) has a second double-ended screw (32) rotatably mounted inside. The outer wall of the second double-ended screw (32) is threaded with two movable seats (33). The ends of the two movable seats (33) away from the second double-ended screw (32) are rotatably mounted with connecting rods (34).

7. The automated simulation system for sandstorm environments according to claim 6, characterized in that, The two connecting rods (34) are rotatably mounted on a mounting plate (35) at the ends away from the movable seat (33). Two cleaning brushes (36) are mounted on the outer wall of the mounting plate (35) away from the two connecting rods (34).

8. The automated simulation system for sandstorm environments according to claim 5, characterized in that, The shielding mechanism includes a base plate (21) installed on the top of two fixed rods (17), a retractable shielding curtain (39) is installed on the top of the base plate (21), a fixed frame (40) is installed on the top of the shielding curtain (39), and two protrusions (41) are installed on the outer walls of the fixed frame (40) near the two cleaning mechanisms.

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