A low-altitude flight comprehensive climate simulation test chamber and test method

Abstract

The present application relates to the field of comprehensive environmental test equipment, and specifically discloses a low-altitude flight comprehensive climate simulation test cabin and test method, which includes a cabin, a clean water supply system, a water mist supply system, and a salt spray supply system; the water mist delivery system includes a main pipe, a water storage ring, a first branch pipe, a second branch pipe, and a shielding component, one end of the main pipe is connected to the clean water supply system, the water mist supply system, and the salt spray supply system, respectively, the other end of the main pipe is connected to the first branch pipe, the first branch pipe is provided with a first nozzle, the water storage ring is sleeved on the outside of the main pipe, the water storage ring is connected to the second branch pipe, the second branch pipe is provided with a second nozzle, the main pipe is provided with a delivery port connected to the inside of the water storage ring, and the shielding component is used to control the opening and closing of the delivery port. The present application can simulate different raindrop sizes, thereby simulating different impact effects and penetration effects of different raindrops on the surface of an object, which helps to enhance the authenticity of the environmental simulation.

Description

Technical Field

[0001] The present application relates to the field of comprehensive environmental test equipment, and in particular to a low-altitude flight comprehensive climate simulation test chamber and a test method. Background Art

[0002] UAVs may encounter some extreme climates when flying at low altitudes. In order to evaluate the performance of UAVs under extreme conditions, environmental simulation can be carried out in a comprehensive climate simulation test chamber. The comprehensive climate simulation test chamber can be used to simulate high and low temperature, humidity, heat and other comprehensive environments on the sea surface or in other natural environments, such as rain, snow, salt spray and other extreme climate conditions.

[0003] The comprehensive climate simulation test cabin is usually equipped with a rain system, a snow system and a salt spray system, which can simulate the corresponding environment as needed. The rain system includes a water pump and a nozzle. The nozzle is installed in the cabin. The water pump transports water to the nozzle, and then sprays it out through the nozzle, thereby simulating the rain scene. The snow system includes a snowmaker, which atomizes the water and mixes it with cold air to form snowflakes in a low temperature environment, thereby simulating the snowfall scene. The salt spray system includes a salt water storage tank, an air saturator and a spray device. The air is sent into the air saturator through an air compressor, so that it is fully mixed with the salt water to form salt mist, and then the spray device evenly sprays it onto the drone, thereby simulating the salt spray scene.

[0004] The structure of the shower system is relatively simple, and the size of the raindrops sprayed out is consistent. However, the sizes of raindrops in the actual rainfall process are different and there is diversity. Therefore, it is difficult to simulate the different impact effects and penetration effects of raindrops of different sizes on the surface of objects, and the simulation effect is weak. Summary of the invention

[0005] In order to enhance the simulation effect of the comprehensive climate test chamber, the present application provides a low-altitude flight comprehensive climate simulation test chamber and a test method.

[0006] In the first aspect, the present application provides a low-altitude flight comprehensive climate simulation test chamber, which adopts the following technical solutions:

[0007] A low-altitude flight comprehensive climate simulation test cabin, comprising: a cabin body and a clean water supply system arranged on the cabin body, for supplying clean water;

[0008] A water mist supply system, used for supplying atomized water droplets so that the atomized water droplets form snowflakes in the cabin;

[0009] A temperature control system for adjusting the temperature in the cabin;

[0010] A salt spray supply system for supplying atomized water droplets containing salt;

[0011] A water mist delivery system is arranged inside the cabin, and comprises a main pipe, a water storage ring, a first branch pipe, a second branch pipe and a shielding component, one end of the main pipe is respectively connected with the output ends of the clean water supply system, the water mist supply system and the salt spray supply system, the other end of the main pipe is connected with the first branch pipe, a first nozzle is arranged on the first branch pipe, a cavity for storing clean water is arranged inside the water storage ring, the water storage ring is sleeved on the outside of the main pipe, the second branch pipe is fixedly connected to the water storage ring, the second branch pipe is connected with the inside of the water storage ring, a second nozzle is arranged on the second branch pipe, the opening diameter of the second nozzle is larger than the opening diameter of the first nozzle, a delivery port connected with the internal cavity of the water storage ring is opened on the main pipe, and the shielding component is arranged at the delivery port;

[0012] The shielding component includes a baffle and a spring. The baffle is slidably arranged in the water storage ring. The spring is connected between the baffle and the water storage ring. The spring makes the baffle press against the delivery port and close the delivery port, so that when the water pressure in the main pipe increases, the baffle can be driven to slide to the side away from the delivery port to open the delivery port.

[0013] By adopting the above technical scheme, when water mist and salt mist are introduced into the main pipe, the water mist and salt mist can flow into the first branch pipe and then be sprayed out through the first nozzle. The water mist can form snowflakes in the low temperature environment of the cabin, thereby realizing the simulation of snowfall and salt mist scenes; since the water mist and salt mist are highly compressible and the transmission of water mist and salt mist does not require a high pressure, the water mist and salt mist are only sprayed out through the first nozzle, and the water mist and salt mist cannot drive the baffle to slide; when clean water is introduced into the main pipe, it is only necessary to make the clean water inflow in the first branch pipe greater than the clean water discharge from the first nozzle, so that the water pressure in the main pipe can be increased, and the water pressure drives the baffle to slide outward, so that When the delivery port is opened, most of the clean water in the main pipe can flow into the water storage ring, then into the second branch pipe and then sprayed out through the second nozzle, thereby realizing the simulation of the rainfall scene; therefore, the first nozzle and the second nozzle can spray clean water at the same time, which can simulate raindrops of different sizes, thereby simulating the different impact effects and penetration effects of raindrops of different sizes on the surface of the object, which helps to enhance the authenticity of the simulation; in addition, the delivery of clean water, water mist and salt mist can be achieved through a set of systems, and the delivered clean water can flush the salt attached to the pipe wall, thereby reducing the adverse effects of salt on the subsequent simulation process, thereby ensuring the accuracy of the simulation.

[0014] Optionally, the first branch pipe and the second branch pipe are both provided in plurality and arranged in a circular array, and the first branch pipe and the second branch pipe are arranged in an alternating manner.

[0015] By adopting the above technical solution, the circular array arrangement can expand the spray range; the staggered arrangement can further expand the clean water spray range during the rainfall simulation process.

[0016] Optionally, the main pipe is rotatably connected to the cabin body, a guide pipe is provided at one end of the first branch pipe away from the main pipe, the guide pipe is perpendicular to the first branch pipe and interconnected, and a discharge port is provided at the end of the guide pipe.

[0017] By adopting the above technical solution, when the salt mist, water mist or clean water in the first branch pipe is sprayed out through the discharge port on the guide pipe, the first branch pipe can be rotated. When the first branch pipe rotates, it drives the main pipe to rotate, thereby causing the second branch pipe to rotate, which helps to further expand the spray coverage.

[0018] Optionally, a connecting rod is fixedly connected to the baffle, and the connecting rod is slidably inserted into the side wall of the water storage ring. A power telescopic part is provided on the first branch pipe along the axial direction of the water storage ring, and a retaining ring is provided at the movable end of the power telescopic part. The retaining ring is sleeved on the outer side of the water storage ring, and the inner wall of the retaining ring is used to resist the connecting rod.

[0019] By adopting the above technical solution, the power telescopic member drives the baffle ring to move downward, so that the inner wall of the baffle ring abuts against the end of the connecting rod, thereby limiting the sliding of the connecting rod and the baffle. Therefore, when the water pressure in the main pipe is increased, the flushing effect on the salt can be enhanced. At the same time, the increase in water pressure will not cause the baffle to open, so the clean water in the main pipe will not enter the water storage ring, and can only be sprayed out through the first nozzle on the first branch pipe, thereby helping to reduce water consumption in the cleaning process and reduce waste.

[0020] Optionally, a support rod is fixedly connected to the retaining ring, a stopper is fixedly connected to the end of the support rod, and the stopper is used to abut against the discharge port at the end of the guide pipe.

[0021] By adopting the above technical solution, when the retaining ring moves downward, the support rod can drive the stopper to move downward, so that the stopper closes the discharge port, thereby preventing clean water from being discharged from the discharge port during the clean water flushing process, and reducing the water consumption during the flushing process.

[0022] Optionally, a plurality of chambers are provided in the cabin, each of the chambers is provided with a water mist delivery system, a first connecting pipe and a second connecting pipe are provided at the input end of the water mist delivery system, a plurality of second connecting pipes are provided and the number is the same as the chambers, one end of the first connecting pipe is respectively connected to the output ends of the clean water supply system, the water mist supply system and the salt mist supply system, the other end of the first connecting pipe is connected to the second connecting pipe, the second connecting pipe is connected to the main pipe in the corresponding chamber, and a valve body is provided on the second connecting pipe.

[0023] By adopting the above technical solution, two different scenarios can be simulated in the two chambers, such as setting different rainfall amounts in the two chambers, or performing control tests in the two chambers, thereby improving the applicability of the device.

[0024] Optionally, a humidity control system is provided in the cabin.

[0025] By adopting the above technical solution, the humidity in the cabin can be adjusted to adapt to different test requirements.

[0026] Optionally, a light source is provided in the cabin.

[0027] By adopting the above technical solution, it is possible to simulate the effects of different lighting conditions, such as sunlight, ultraviolet rays, etc. on the test samples.

[0028] Optionally, an air supply member is provided in the cabin to adjust the wind speed and flow direction in the cabin.

[0029] By adopting the above technical solution, it is possible to simulate natural environments with different wind speeds.

[0030] In the second aspect, the present application provides a test method, which adopts the following technical solution:

[0031] A test method, using any of the above-mentioned low-altitude flight comprehensive climate simulation test chambers, comprises the following steps:

[0032] a. The salt spray supply system outputs salt spray, which is sprayed outward into the cabin through the main pipe, the first branch pipe and the first nozzle to simulate the salt spray scene. At this time, the baffle closes the delivery port;

[0033] b. After the salt spray scene simulation is completed, the clean water supply system outputs clean water, which is sprayed outward through the main pipe, the first branch pipe and the first nozzle to clean the inner wall of the main pipe, the inner wall of the first branch pipe and the first nozzle. At this time, the baffle still closes the delivery port;

[0034] c. After cleaning is completed, the clean water supply system outputs clean water, which is sprayed outward through the main pipe, the first branch pipe and the first nozzle. The water pressure in the main pipe drives the baffle to slide to the side away from the delivery port, so that the delivery port is opened, and a part of the clean water in the main pipe can flow into the water storage ring, and then sprayed out from the second branch pipe and the second nozzle. At this time, the first nozzle and the second nozzle spray at the same time to simulate a rainfall scene.

[0035] By adopting the above technical solution, the first nozzle and the second nozzle can spray at the same time, thereby simulating different raindrop sizes and making the simulated environment more realistic; the clean water flowing into the first branch pipe can not only improve the reality of the simulation, but also flush the salt on the inner wall of the main pipe, the inner wall of the first branch pipe and the first nozzle, thereby ensuring the subsequent simulation effect.

[0036] In summary, this application includes the following beneficial technical effects:

[0037] 1. When simulating a rainfall scene, the first nozzle and the second nozzle can spray at the same time to simulate different raindrop sizes, thereby simulating the different impact effects and penetration effects of raindrops of different sizes on the surface of an object, which helps to enhance the authenticity of the environmental simulation.

[0038] 2. The clean water flowing into the first branch pipe can not only simulate raindrops of another size, but also flush the salt in the main pipe, the first branch pipe and the first nozzle during the cleaning process, thereby reducing the impact of the salt on the subsequent simulation process.

[0039] 3. After the power telescopic member drives the baffle ring to move downward, the baffle ring abuts against the end of the connecting rod. When the baffle ring moves downward, the support rod drives the baffle to slide, so that the baffle closes the discharge port on the guide pipe, thereby increasing the flushing water pressure to enhance the flushing effect on salt. The baffle will not slide outward under the action of the water pressure, so the water in the main pipe will not flow into the water storage ring, and can only be discharged through the first nozzle, thereby reducing the water consumption during the flushing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a cross-sectional view of an embodiment of the present application;

[0041] Figure 2 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0042] Figure 3 is a schematic diagram of the structure when the retaining ring is located above the abutment block in the embodiment of the present application;

[0043] Figure 4 is a schematic diagram of the structure of the second branch pipe used to illustrate the embodiment of the present application;

[0044] Figure 5 It is a schematic diagram of the structure when the retaining ring and the abutment block abut against each other in the embodiment of the present application;

[0045] Figure 6 is a cross-sectional view from another perspective of the embodiment of the present application;

[0046] Figure 7 It is a cross-sectional view of an embodiment of the present application for illustrating a temperature control system.

[0047] Figure numerals: 1, cabin; 2, clean water supply system; 3, water mist supply system; 4, temperature control system; 41, fan; 42, heating pipe; 43, refrigeration equipment; 5, salt spray supply system; 6, water mist delivery system; 61, main pipe; 611, delivery port; 62, water storage ring; 63, first branch pipe; 631, first nozzle; 632, bump; 64, second branch pipe; 641, second nozzle; 65, shielding Components; 651, baffle; 6511, connecting rod; 65111, abutment block; 652, spring; 7, guide tube; 71, discharge port; 8, power telescopic member; 9, retaining ring; 10, support rod; 11, block; 12, first connecting pipe; 13, second connecting pipe; 14, light source; 15, air supply member; 16, equipment room; 161, shell; 1611, partition block; 162, partition; 1621, perforation. DETAILED DESCRIPTION

[0048] The following combination Figure 1-Figure 7 This application is described in further detail.

[0049] The present application embodiment discloses a low-altitude flight comprehensive climate simulation test chamber. Figure 1 The low-altitude flight comprehensive climate simulation test cabin includes a cabin 1, and a clean water supply system 2, a water mist supply system 3 and a salt mist supply system 5 are arranged on the top wall of the cabin 1. The clean water supply system 2 includes a water tank and a water pump, and the input end of the water pump is connected to the water tank. The water is discharged into the cabin 1 to simulate the rainfall scene. The water mist supply system 3 includes a spray device, which can output atomized water droplets, and the atomized water droplets are water mist. The water mist is sprayed into the cabin 1, and snowflakes can be formed in a low temperature environment, thereby simulating snowfall. The salt mist supply system 5 includes an air compressor, a salt water storage tank, a spray device and an air saturator. The air is sent into the air saturator by the air compressor, and the air is fully mixed with the salt water to form salt mist, which is then sprayed by the spray device to simulate the salt mist scene.

[0050] Reference Figure 1 and Figure 2, a water mist delivery system 6 is also provided in the cabin 1, and the water mist delivery system 6 can deliver clean water, water mist or salt mist. The water mist delivery system 6 includes a main pipe 61, a water storage ring 62, a first branch pipe 63, a second branch pipe 64 and a shielding component 65. The main pipe 61 is arranged at the top of the cabin 1, and the main pipe 61 is arranged vertically. The top of the main pipe 61 is connected to the output ends of the clean water supply system 2, the water mist supply system 3 and the salt mist supply system 5 respectively, the bottom end of the main pipe 61 is fixedly connected to the first branch pipe 63, and the main pipe 61 is connected to the first branch pipe 63. There are multiple first branch pipes 63 and they are arranged in a circular array; the end of the first branch pipe 63 is closed, and a first nozzle 631 is fixedly connected to the bottom wall of the first branch pipe 63. There are multiple first nozzles 631, and they are evenly spaced along the length direction of the first branch pipe 63. Therefore, the clean water, water mist or salt mist in the main pipe 61 can be sprayed downward through the first nozzle 631 on the first branch pipe 63.

[0051] Reference Figure 2 , Figure 3 and Figure 4 The water storage ring 62 is cylindrical and fixedly connected to the outer wall of the main pipe 61. A cavity for containing clean water is formed between the inner wall of the water storage ring 62 and the outer wall of the main pipe 61. The second branch pipe 64 is fixedly connected to the outer wall of the water storage ring 62. The second branch pipe 64 is connected to the inner cavity of the water storage ring 62. There are multiple second branch pipes 64 arranged in a circular array. The end of the second branch pipe 64 is closed. A second nozzle 641 is fixedly connected to the bottom wall of the second branch pipe 64. There are multiple second nozzles 641 arranged evenly spaced along the length direction of the second branch pipe 64. The opening diameter of the second nozzle 641 is larger than the opening diameter of the first nozzle 631. The first nozzle 631 is mainly used to spray water mist and salt mist to simulate snowfall and salt mist scenes. The first nozzle 631 can also spray clean water to clean the pipe wall and the first nozzle 631. The second nozzle 641 is only used to spray clean water to simulate a rainfall scene.

[0052] Reference Figure 2A delivery port 611 is provided on the side wall of the main pipe 61, and two delivery ports 611 are provided and are respectively located on both sides of the main pipe 61. The delivery port 611 is communicated with the cavity inside the water storage ring 62, so that the clean water in the main pipe 61 can flow into the water storage ring 62 through the delivery port 611. Two groups of shielding components 65 are provided, and they correspond to the two delivery ports 611 respectively. The shielding component 65 includes a baffle 651 and a spring 652. The baffle 651 is located in the water storage ring 62, and the baffle 651 is slidably arranged at the delivery port 611. The area of ​​the baffle 651 is larger than the area of ​​the delivery port 611, so that the baffle 651 can completely block the delivery port 611. A connecting rod 6511 is fixedly connected to the side of the baffle 651 away from the delivery port 611, and the connecting rod 6511 is slidably penetrated on the outer wall of the water storage ring 62. The top wall of the first branch pipe 63 is fixedly connected with a protrusion 632; the end of the connecting rod 6511 passes through the water storage ring 62, and the spring 652 is fixedly connected between the end of the connecting rod 6511 passing through the water storage ring 62 and the protrusion 632. The spring 652 is in a compressed state, and the spring 652 makes the baffle 651 press against the outer wall of the main pipe 61 at the delivery port 611.

[0053] A sliding seal is provided between the connecting rod 6511 and the outer wall of the water storage ring 62, thereby helping to ensure the sealing effect of the water storage ring 62, so that the water in the water storage ring 62 is not easy to leak out. Since the spring 652 is provided outside the water storage ring 62, the spring 652 will not be directly immersed in the clean water inside the water storage ring 62, which helps to ensure the service life of the spring 652.

[0054] When water mist or salt mist is transported in the main pipe 61, since the water mist and salt mist are highly compressible, the water mist and salt mist are not easy to push the baffle 651 to slide during transportation, and the water mist and salt mist can flow into the first branch pipe 63 and then be directly sprayed out through the first nozzle 631. When clean water is transported in the main pipe 61, since clean water is incompressible, it is only necessary to make the amount of clean water flowing into the first branch pipe 63 greater than the amount of clean water discharged through the first nozzle 631, and the baffle 651 can be pushed outward under the action of the water pressure in the main pipe 61, so that the delivery port 611 is opened. At this time, most of the clean water in the main pipe 61 can flow into the water storage ring 62 through the delivery port 611, and then flow into the second branch pipe 64 and then be sprayed out from the second nozzle 641, thereby simulating a rainfall scene.

[0055] The first branch pipe 63 and the second branch pipe 64 are arranged alternately at intervals, thereby ensuring the spraying effect and expanding the spraying range.

[0056] It should be noted that rainfall, snowfall and salt spray simulations require different environmental conditions; rainfall and snowfall require lower temperatures, while salt spray simulations require higher humidity and temperature. Simultaneous simulations may lead to conflicts in environmental conditions, making it difficult to accurately control the specific conditions required for each scenario. Therefore, rainfall, snowfall and salt spray simulations will not be performed at the same time. Each test will only simulate one of the environments, and then switch to another environment after the test is completed.

[0057] Reference Figure 2 and Figure 3 Furthermore, the main pipe 61 is rotatably connected to the top wall of the cabin 1, and the end of the first branch pipe 63 away from the main pipe 61 is fixedly connected to the guide pipe 7; the guide pipe 7 is horizontally arranged, and the guide pipe 7 is perpendicular to the first branch pipe 63. A discharge port 71 is provided at the end of the guide pipe 7 away from the first branch pipe 63. Therefore, when the discharge port 71 discharges water mist, salt mist or clean water, the first branch pipe 63 can be rotated, and the first branch pipe 63 drives the main pipe 61 to rotate, so that all the first branch pipes 63 and the second branch pipes 64 are in a rotating state, which helps to expand the spraying range.

[0058] After the salt spray scene simulation, some salt will remain on the inner wall of the main pipe 61, the inner wall of the first branch pipe 63 and the first nozzle 631, so it is necessary to clean up these residual salts to ensure the subsequent simulation effect. When cleaning, the clean water supply system 2 can be started, and the clean water supply system 2 can transport clean water to the main pipe 61, and the clean water is then sprayed through the first branch pipe 63 and the first nozzle 631, so as to wash away the residual salt, which helps to ensure the simulation effect of the subsequent scene.

[0059] Reference Figure 3 and Figure 5 In order to further enhance the cleaning effect on the inner wall of the main pipe 61, the inner wall of the first branch pipe 63 and the first nozzle 631, a component for limiting the sliding of the baffle 651 is provided in the present application. A power telescopic member 8 is provided on the top wall of the first branch pipe 63, and the power telescopic member 8 is an electric push rod, and the power telescopic member 8 is vertically arranged. In other embodiments, the power telescopic member 8 can also be a hydraulic cylinder or an oil cylinder. The fixed end of the power telescopic member 8 is fixedly connected to the top wall of the first branch pipe 63, and the movable end of the power telescopic member 8 is vertically facing upward, and the movable end of the power telescopic member 8 is fixedly connected to a support rod 10, and a retaining ring 9 is fixedly connected to the support rod 10. One end of the connecting rod 6511 located outside the water storage ring 62 is fixedly connected to a contact block 65111; the retaining ring 9 is a circular ring, and the retaining ring 9 is coaxially sleeved on the outside of the water storage ring 62; when the spring 652 presses the baffle 651 against the outer wall of the main pipe 61 at the delivery port 611, the inner wall of the retaining ring 9 can abut against the contact block 65111.

[0060] There are multiple support rods 10 , and the number of the support rods 10 is the same as the number of the first branch pipes 63 . Each support rod 10 corresponds to a first branch pipe 63 . The end of the support rod 10 is fixedly connected with a stopper 11 for abutting against the discharge port 71 .

[0061] When the device is working normally, the retaining ring 9 is located above the abutment block 65111, so that the connecting rod 6511 and the baffle 651 can slide smoothly under the action of water pressure; the baffle 11 is located above the corresponding discharge port 71, so that the water mist, salt mist or clean water in the guide pipe 7 can be discharged through the discharge port 71. When it is necessary to clean the pipe wall and the first nozzle 631, the power telescopic member 8 drives the retaining ring 9 to slide downward, at which time the inner wall of the retaining ring 9 is pressed against the outer wall of the abutment block 65111, and the retaining block 11 closes the delivery port 611; the support rod 10 and the retaining block 11 can slide downward with the retaining ring 9, and the retaining block 11 blocks the discharge port 71. Therefore, under the restriction of the abutment block 65111 by the retaining ring 9, the connecting rod 6511 and the baffle 651 cannot slide outward. Therefore, when the water delivery amount is increased, the delivery port 611 is still in a closed state, so that the water pressure of the water delivered into the main pipe 61 by the clean water supply system 2 is increased; at the same time, all the water in the main pipe 61 is discharged from the first nozzle 631, thereby enhancing the cleaning effect on the inner wall of the main pipe 61 and the first branch pipe 63 and the first nozzle 631, and reducing the water consumption.

[0062] Reference Figure 1 In order to enhance the applicability of the device, two chambers are provided inside the cabin 1. In other embodiments, the number of chambers can also be set to be more. A water mist delivery system 6 is provided above each chamber, which is used to deliver clean water, water mist or salt mist to the corresponding chamber to simulate rain, snowfall and salt mist scenes. A first connecting pipe 12 and a second connecting pipe 13 are provided above the main pipe 61, and the first connecting pipe 12 and the second connecting pipe 13 are fixedly connected to the top outer wall of the cabin 1. One end of the first connecting pipe 12 is respectively connected to the output ends of the clean water supply system 2, the water mist supply system 3 and the salt mist supply system 5, and the other end of the first connecting pipe 12 is fixedly connected to the second connecting pipe 13 and communicated with each other. Two second connecting pipes 13 are provided and correspond to the two main pipes 61 respectively, and the second connecting pipe 13 is connected to the top of the corresponding main pipe 61. The second connecting pipe 13 and the main pipe 61 are rotatably connected, so the rotation of the main pipe 61 is not easy to affect the second connecting pipe 13. Since two chambers are provided, different environments can be set in the two chambers, thereby improving the applicability of the device.

[0063] The second connecting pipe 13 is provided with a valve body, so that the opening and closing of the second connecting pipe 13 can be controlled as needed. A valve body is provided between the first connecting pipe 12 and the three supply systems, so that the material supplied by one supply system can be prevented from entering the other two supply systems.

[0064] Reference Figure 1 and Figure 6 The cabin 1 is also provided with an equipment room 16, and two equipment rooms 16 are provided and correspond to the two chambers respectively. The equipment room 16 includes a shell 161 and a partition 162. The shell 161 is fixedly connected to the side wall of the cabin 1, and the interior of the shell 161 is connected to the interior of the cabin 1. The partition 162 is fixedly connected to the opening of the shell 161, and a plurality of perforations 1621 are provided on the partition 162, thereby preventing direct heat exchange between the equipment room 16 and the cabin 1, thereby improving the accuracy and stability of temperature control.

[0065] Reference Figure 7 , the temperature regulating system 4 is arranged inside the shell 161, and the temperature regulating system 4 includes a fan 41, a heating pipe 42 and a refrigeration device 43. Two fans 41 are provided, and are respectively arranged on both sides of the shell 161, and the fans 41 are used to blow air into the shell 161. A partition block 1611 is also fixedly connected to the shell 161, and the partition block 1611 divides the inside of the shell 161 into a heating chamber and a refrigeration chamber, and the heating pipe 42 and the refrigeration device 43 are respectively located on both sides of the partition block 1611. Therefore, the heating chamber and the refrigeration chamber are separated, which can ensure the temperature control efficiency. The refrigeration device 43 includes a compressor, a condenser and an evaporator, which are used to realize the refrigeration function. A temperature sensor is also provided in the cabin 1, so that hot air or cold air can be introduced into the cabin 1 as needed, thereby adjusting the temperature in the cabin 1.

[0066] Reference Figure 6 The cabin 1 is also fixedly connected with an air supply member 15, which is a fan 41; in other embodiments, the air supply member 15 can also be a fan. Therefore, by adjusting the air supply angle and air supply volume, the air flow speed and direction in the cabin 1 can be controlled, thereby simulating a natural environment with different wind speeds.

[0067] The interior of the cabin 1 is provided with a humidity control system, which includes a humidifier, a dehumidifier and a humidity sensor. Therefore, the operation of the humidifier or the dehumidifier can be automatically controlled according to the information fed back by the humidity sensor, so that the humidity in the cabin 1 is maintained within the set range to meet the test requirements of different humidity environments.

[0068] A light source 14 is provided on the inner wall of the top of the cabin 1. The light source 14 includes an ultraviolet lamp, an incandescent lamp and a fluorescent lamp. By controlling the switch, brightness and irradiation time of the light source 14, different lighting conditions can be simulated, thereby testing the effects of different types of light such as sunlight, ultraviolet light, etc. on the test sample.

[0069] A control system is also provided on the cabin 1. The control system adopts a programmable logic controller (PLC) or a microprocessor as the core control unit to connect and control the operating status, parameter setting and data acquisition of each system, so as to realize automatic control and monitoring of the test process. At the same time, it is equipped with a display screen and an operation interface to facilitate users to set parameters and perform test operations.

[0070] The implementation principle of a low-altitude flight comprehensive climate simulation test chamber in the embodiment of the present application is as follows: the unmanned aerial vehicle to be tested is placed in the chamber 1; in the initial state, the baffle 651 closes the delivery port 611, so that the salt mist output by the salt mist supply system 5 enters the main pipe 61, and then sprays downward through the first branch pipe 63 and the first nozzle 631, thereby simulating a salt mist scene in the chamber 1. A portion of the salt mist in the first branch pipe 63 can be discharged through the discharge port 71 on the guide pipe 7, so that the first branch pipe 63 can be rotated, so that the first nozzle 631 on the first branch pipe 63 can expand the salt mist spraying range of the first nozzle 631 as it rotates.

[0071] After the salt spray simulation test is completed, the clean water supply system 2 outputs clean water, which flows into the main pipe 61, the first branch pipe 63 and the first nozzle 631 in sequence, and then is sprayed out from the first nozzle 631, thereby flushing away the salt in the inner wall of the main pipe 61, the inner wall of the first branch pipe 63 and the first nozzle 631, and reducing the adverse effects of the salt in the pipe wall and the first nozzle 631 on the subsequent simulation process.

[0072] After cleaning is completed, snowfall scene simulation or rainfall scene simulation can be performed. When simulating snowfall scene, the interior of the cabin 1 is cooled first, and then the atomized water droplets output by the water mist supply system 3 flow into the main pipe 61, the first branch pipe 63 and the first nozzle 631 in sequence, and then sprayed out through the first nozzle 631. The atomized water droplets sprayed into the cabin 1 can solidify under the action of low temperature, thereby forming snowflakes to simulate the snowfall scene.

[0073] When simulating a rainfall scene, the temperature inside the cabin 1 is adjusted to a suitable temperature, and then the clean water output by the clean water supply system 2 flows into the main pipe 61 and the first branch pipe 63. Most of the clean water in the first branch pipe 63 is sprayed out through the first nozzle 631, and a small amount of clean water in the first branch pipe 63 is discharged through the discharge port 71, so that the first branch pipe 63 rotates to expand the spraying range, thereby realizing the simulation of a light rain scene.

[0074] When it is necessary to simulate a heavy rain scene, the water output of the water pump is increased. Therefore, under the action of the water pressure in the main pipe 61, the baffle 651 can slide outward, the delivery port 611 is opened, and most of the water in the main pipe 61 flows into the water storage ring 62 through the delivery port 611, and then flows into the second branch pipe 64 and then sprays downward through the second nozzle 641. At this time, the second nozzle 641 and the first nozzle 631 can spray at the same time; since the opening diameters of the second nozzle 641 and the first nozzle 631 are different, raindrops of different particle sizes can be sprayed, thereby simulating the different impact effects and penetration effects of raindrops of different sizes on the surface of the drone, and the simulation is more realistic.

[0075] As the first branch pipe 63 rotates, the first branch pipe 63 drives the main pipe 61 to rotate, and the main pipe 61 drives the second branch pipe 64 and the second nozzle 641 to rotate, so that the first nozzle 631 and the second nozzle 641 are both in a rotating state, which helps to expand the spraying range.

[0076] The above cleaning method is a temporary cleaning during the test. In order to enhance the cleaning effect, pressurized cleaning can be performed regularly. During pressurized cleaning, the power telescopic member 8 is used to drive the retaining ring 9 to slide downward, so that the retaining ring 9 abuts against the abutment block 65111 at the end of the connecting rod 6511, thereby limiting the sliding of the connecting rod 6511 and the baffle 651. When the retaining ring 9 slides down, the support rod 10 can also drive the retaining block 11 to slide down. The retaining block 11 can slide to a state of abutting against the discharge port 71 of the guide pipe 7, thereby blocking the discharge port 71, so that the clean water in the first branch pipe 63 cannot be discharged through the discharge port 71. Therefore, water is supplied to the main pipe 61 through the clean water supply system 2, and the clean water flows into the first branch pipe 63 and then sprayed out through the first nozzle 631. Increasing the water supply pressure can enhance the flushing effect of the internal salt; since the clean water in the main pipe 61 is discharged through the first nozzle 631, the water consumption during the cleaning process can be reduced.

[0077] This embodiment also discloses a test method, comprising the following steps:

[0078] Step a. The salt mist supply system 5 outputs salt mist, and the salt mist is sprayed downward into the cabin 1 through the main pipe 61, the first branch pipe 63 and the first nozzle 631 to simulate a salt mist scene. At this time, the delivery port 611 is in a closed state.

[0079] Step b. After the salt spray scene simulation is completed, the clean water supply system 2 outputs clean water, which is sprayed downward into the cabin 1 through the main pipe 61, the first branch pipe 63 and the first nozzle 631 to flush the salt in the main pipe 61, the first branch pipe 63 and the first nozzle 631. At this time, the delivery port 611 is still in a closed state.

[0080] Step c. After cleaning is completed, the clean water supply system 2 outputs clean water, which is sprayed downward into the cabin 1 through the main pipe 61, the first branch pipe 63 and the first nozzle 631. At this time, the delivery port 611 is in a closed state to simulate a light rain scene.

[0081] Step d. Increase the water supply. The water pressure in the main pipe 61 causes the baffle 651 to slide outward, and the delivery port 611 opens. Most of the clean water in the main pipe 61 flows into the water storage ring 62 through the delivery port 611. The clean water in the water storage ring 62 is then sprayed downward into the cabin 1 through the second branch pipe 64 and the second nozzle 641. At the same time, the first nozzle 631 is still in the spraying state, so the first nozzle 631 and the second nozzle 641 spray at the same time to simulate a heavy rain scene.

[0082] Step e. Perform pressurized cleaning regularly. The power telescopic member 8 drives the retaining ring 9 to move downward. The retaining ring 9 moves to abut against the abutment block 65111. When the retaining ring 9 moves downward, the support rod 10 drives the retaining block 11 to move downward. The retaining block 11 moves to abut against the discharge port 71, and the discharge port 71 is closed. The clean water supply system 2 outputs clean water, which flows into the main pipe 61, the first branch pipe 63 and the first nozzle 631 in sequence, and then is sprayed out from the first nozzle 631. When the water pressure is increased, the flushing effect on the pipe wall and the first nozzle 631 can be enhanced, and the water consumption during the flushing process can also be reduced.

[0083] The above are optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A low-altitude flight comprehensive climate simulation test chamber, characterized in that: include: Cabin (1) and a device arranged on the cabin (1) A clean water supply system (2), used for supplying clean water; A water mist supply system (3) for supplying atomized water droplets so that the atomized water droplets form snowflakes in the cabin (1); A temperature regulating system (4) for regulating the temperature in the cabin (1); A salt spray supply system (5) for supplying atomized water droplets containing salt; The water mist delivery system (6) is arranged inside the cabin (1), and comprises a main pipe (61), a water storage ring (62), a first branch pipe (63), a second branch pipe (64) and a shielding component (65), one end of the main pipe (61) is respectively connected to the output ends of the clean water supply system (2), the water mist supply system (3) and the salt mist supply system (5), the other end of the main pipe (61) is connected to the first branch pipe (63), the first branch pipe (63) is provided with a first nozzle (631), and the water storage ring (62) is connected to the output end of the clean water supply system (2), the water mist supply system (3) and the salt mist supply system (5). A cavity for storing clean water is provided inside, the water storage ring (62) is sleeved on the outside of the main pipe (61), the water storage ring (62) is connected to the second branch pipe (64), the second branch pipe (64) is provided with a second nozzle (641), the opening diameter of the second nozzle (641) is larger than the opening diameter of the first nozzle (631), the main pipe (61) is provided with a delivery port (611) connected to the internal cavity of the water storage ring (62), and the shielding component (65) is provided at the delivery port (611); The shielding component (65) comprises a baffle (651) and a spring (652); the baffle (651) is slidably disposed in the water storage ring (62); the spring (652) is connected between the baffle (651) and the water storage ring (62); the spring (652) causes the baffle (651) to press against the delivery port (611) and close the delivery port (611), so that when the water pressure in the main pipe (61) increases, the baffle (651) can be driven to slide toward a side away from the delivery port (611), thereby opening the delivery port (611); The main pipe (61) is rotatably connected to the cabin (1); a guide pipe (7) is provided at one end of the first branch pipe (63) away from the main pipe (61); the guide pipe (7) is perpendicular to the first branch pipe (63) and communicates with each other; a discharge port (71) is provided at the end of the guide pipe (7); The baffle plate (651) is fixedly connected to a connecting rod (6511), the connecting rod (6511) is slidably inserted into the side wall of the water storage ring (62), a dynamic telescopic member (8) is provided on the first branch pipe (63) along the axial direction of the water storage ring (62), a retaining ring (9) is provided at the movable end of the dynamic telescopic member (8), the retaining ring (9) is sleeved on the outer side of the water storage ring (62), and the inner wall of the retaining ring (9) is used to abut against the connecting rod (6511); A support rod (10) is fixedly connected to the retaining ring (9), and a stopper (11) is fixedly connected to the end of the support rod (10), and the stopper (11) is used to abut against a discharge port (71) at the end of the guide pipe (7).

2. A low-altitude flight comprehensive climate simulation test chamber according to claim 1, characterized in that: A plurality of the first branch pipes (63) and the second branch pipes (64) are provided and arranged in a circular array, and the first branch pipes (63) and the second branch pipes (64) are arranged in an alternating manner.

3. The low-altitude flight comprehensive climate simulation test chamber according to claim 1, characterized in that: The cabin (1) is provided with a plurality of chambers, each of the chambers being provided with a water mist delivery system (6), the input end of the water mist delivery system (6) being provided with a first connecting pipe (12) and a second connecting pipe (13), a plurality of the second connecting pipes (13) being provided and the number of the second connecting pipes (13) being the same as the number of the chambers, one end of the first connecting pipe (12) being respectively connected to the output ends of the clean water supply system (2), the water mist supply system (3) and the salt mist supply system (5), the other end of the first connecting pipe (12) being connected to the second connecting pipe (13), the second connecting pipe (13) being connected to a main pipe (61) in the corresponding chamber, and a valve body being provided on the second connecting pipe (13).

4. The low-altitude flight comprehensive climate simulation test chamber according to claim 1, characterized in that: A humidity adjustment system is provided in the cabin (1).

5. The low-altitude flight comprehensive climate simulation test chamber according to claim 1, characterized in that: A light source (14) is arranged in the cabin (1).

6. The low-altitude flight comprehensive climate simulation test chamber according to claim 1, characterized in that: The cabin (1) is provided with an air supply member (15) for adjusting the wind speed and flow direction in the cabin (1).

7. A test method using the low-altitude flight comprehensive climate simulation test chamber according to any one of claims 1 to 6, characterized in that: The test method comprises the following steps: a. The salt mist supply system (5) outputs salt mist, and the salt mist is sprayed outwardly into the cabin (1) through the main pipe (61), the first branch pipe (63) and the first nozzle (631), simulating a salt mist scene. At this time, the baffle (651) closes the delivery port (611); b. After the salt spray scene simulation is completed, the clean water supply system (2) outputs clean water, and the clean water is sprayed outward through the main pipe (61), the first branch pipe (63) and the first nozzle (631) to clean the inner wall of the main pipe (61), the inner wall of the first branch pipe (63) and the first nozzle (631). At this time, the baffle (651) still closes the delivery port (611); c. After cleaning is completed, the clean water supply system (2) outputs clean water, which is sprayed outward through the main pipe (61), the first branch pipe (63) and the first nozzle (631). The water pressure in the main pipe (61) drives the baffle (651) to slide toward the side away from the delivery port (611), so that the delivery port (611) is opened, and a portion of the clean water in the main pipe (61) flows into the water storage ring (62), and then sprayed out from the second branch pipe (64) and the second nozzle (641). At this time, the first nozzle (631) and the second nozzle (641) spray at the same time, simulating a rainfall scene.

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