A rainfall simulation device for testing waterproof performance of a lamp

Abstract

The utility model provides a kind of rainfall simulation device for testing the waterproof performance of lamps and lanterns, it includes rack, tray and water supply system, rack is equipped with support slide bar and driving rod, driving rod is arranged with several coils, support slide bar is slid with rainfall seat, rainfall seat is equipped with the driving magnet matched with coil, rainfall seat is arranged with several drain holes, tray is below drain hole, tray is used to place the lamps and lanterns to be measured, water supply system is connected with drain hole pipeline, so that rainfall output falls on lamps and lanterns, at this time, coil is used to drive driving magnet to drive rainfall seat to shake and simulate wind and rain environment, and driving magnet drives rainfall seat to move and adjust position;The utility model belongs to the technical field of lamps and lanterns testing equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of lighting testing equipment, and in particular relates to a rainfall simulation device for testing the waterproof performance of lighting fixtures. Background Technology

[0002] In the research and development and production of lighting fixtures (especially outdoor lights and bathroom lights), waterproof performance tests are typically conducted to obtain the product's waterproof performance parameters. However, during these tests, the water outlets of the testing equipment are usually fixed above the testing platform. Therefore, the rainwater from the outlets falls vertically onto the surface of the lighting fixture, and upon impact, it splashes outwards. This can create blind spots on the fixture's surface that are not directly hit by the rainwater, especially in the gaps between adjacent outlets, thus affecting the test results. Utility Model Content

[0003] The purpose of this invention is to provide a rainfall simulation device for testing the waterproof performance of lighting fixtures, so as to solve the technical problems described in the background art.

[0004] The rainfall simulation device for testing the waterproof performance of lamps includes: The frame is equipped with a support slide rod and a drive rod. Several coils are arranged on the drive rod. A rain seat slides on the support slide rod. The rain seat is equipped with a drive magnet that cooperates with the coil. Several drainage holes are arranged on the rain seat. The tray, located below the drain hole, is used to hold the light fixture to be tested. The water supply system is connected to the drain hole pipe so that the rainwater output from the drain hole falls onto the lamp. At this time, the coil is used to drive the drive magnet to make the rain seat shake to simulate the wind and rain environment, and to drive the drive magnet to move the rain seat to adjust its position.

[0005] Based on the above technical solution, the present invention achieves the following beneficial effects: 1. By supplying electrical energy with a set power to the coil around the driving magnet, the coil drives the driving magnet to move the rain seat to the target position, thereby adjusting the rainwater position of the drainage hole, so that the rainwater can fall onto the surface of the lamp.

[0006] 2. By controlling the power and rhythm of the electrical energy supplied to each coil, it is possible to drive the rain seat to the target position at high speed. Therefore, compared with the driving methods of traditional ball screw modules and drive belt modules, the moving speed can be improved.

[0007] 3. When the rain seat moves, by supplying a current of opposite phase to the coil near the target position, the magnetic field generated by the coil stops the moving rain seat. Alternatively, by supplying the same phase of electrical energy to the coil at the target position, the magnetic field of the coil attracts the drive magnet, thus preventing the rain seat from moving. This allows the rain seat to stop at the target position. Therefore, compared to a cylinder module, the rain seat can be stopped at any position within its travel range, and compared to a belt module, the amount of forward movement due to inertia is reduced. Furthermore, stopping the rain seat by magnetic force or attraction provides a buffering effect, reducing overall machine vibration and component damage.

[0008] 4. By supplying different power to each coil, it is possible to drive the rain seat to move to any position between the two coils, so that the rain seat can not move and stop in a step-like manner, but can stop precisely at the target position.

[0009] 5. By intermittently supplying electrical energy to the coil around the driving magnet, the driving magnet is driven to move the rain seat, which in turn causes the rainwater output from the drain hole to swing in the air, simulating a windy and rainy environment. This allows the rainwater to cover the surface of the lamp more comprehensively, avoiding the formation of rain blind spots due to the gap between two adjacent drain holes.

[0010] To further optimize the above technical solutions, they can be combined with one or more of the following implementation methods without conflict.

[0011] In some specific embodiments, a limiting seat located at both ends of the rain seat slides on the support slide rod. The limiting seat is provided with a limiting magnet that cooperates with the coil. The coil is used to drive the limiting magnet to move the limiting seat and to attract the limiting magnet to fix the limiting seat to both ends of the rain seat. A spring is provided between the limiting seat and the rain seat so that when the rain seat shakes, the spring is used to push the rain seat to reset instantly, so that the rain seat vibrates at a set frequency and changes the precipitation pattern.

[0012] According to the above technical solution, by supplying electrical energy to the coil next to the limiting magnet, the limiting slider is fixed. Then, by supplying electrical energy to the coil around the driving magnet at a set speed and in an alternating manner, the rain seat is driven to vibrate at a set frequency. This causes the rainwater output from the drain hole to vibrate at a set frequency, changing the surface tension and internal turbulence of the water flow, thereby further improving the diversity of simulated wind and rain environments. For example, low-frequency vibration breaks the continuous water column into coarse segments, and the water flow breaks into larger droplets; medium-frequency vibration evenly segments the water flow, forming individual water droplets; high-frequency vibration tears the water column into a fine mist.

[0013] In some specific embodiments, the frame is equipped with infrared ranging sensors located at both ends of the support slide rod for sensing the position of the rain seat.

[0014] According to the above technical solution, when driving the rain seat to move, the rain seat can be positioned by an infrared ranging sensor, thereby enabling the rain seat to be driven to move to the set position more accurately.

[0015] In some specific embodiments, the water supply system includes: A water pump is connected to a tray pipe. The tray is equipped with a water baffle to allow water to accumulate to a set height when the water pump stops working. The circulating water tank is connected to both the water pump and the drain pipe. The circulating water tank is equipped with a pressure relief valve and a pressure gauge. When the water pump pumps water from the tray into the circulating water tank, or when the water pump stops working, the pressure relief valve is used to adjust the air pressure in the circulating water tank, thereby adjusting the water pressure and duration of the drain.

[0016] Based on the above technical solution, the present invention will further achieve the following beneficial effects: 1. The water trap is designed so that after rainwater falls onto the tray, it can accumulate inside the tray, thus enabling the immersion test of the lamps.

[0017] 2. The water accumulated in the tray is pumped out by a water pump and transported back to the circulating water tank, thereby realizing the recycling of water and saving water resources.

[0018] 3. During the process of the water pump transporting the accumulated water in the tray to the circulating water tank, the water pressure and duration of the drainage hole can be adjusted by adjusting the flow rate of the water pump and / or the flow rate of the pressure relief valve.

[0019] In some specific embodiments, the water supply system further includes an air pump connected to a circulating water tank pipeline. The air pump is used to adjust the air pressure in the circulating water tank to control the water pressure of the water being pumped.

[0020] According to the aforementioned technical solution, when the water pump stops supplying water to the circulating water tank or the water flow is insufficient, the air pressure in the circulating water tank can be increased by an air pump to increase the water pressure.

[0021] In some specific embodiments, the tray is provided with a bracket for supporting the lamp.

[0022] According to the aforementioned technical solution, when it is necessary to conduct an immersion test on the lamps, the tray can also store a certain amount of water to provide a backup supply for the circulating water tank.

[0023] In some specific embodiments, the frame is equipped with baffles surrounding the tray and rain seat, and the baffles have material handling doors. According to the described technical solution, rainwater can be effectively prevented from splashing outwards during its application to the lighting fixtures. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model, the following will briefly explain the drawings and reference numerals used in the description of the specific embodiments.

[0025] Figure 1 This is a structural schematic diagram of Example 1; Figure 2 This is a cross-sectional view of the drive rod described in Embodiment 1; Figure 3 This is a structural schematic diagram of Example 2; Figure 4 This is a cross-sectional view of the drive rod described in Embodiment 2.

[0026] Figure label: 1. Frame; 11. Baffle; 12. Material handling gate; 2. Support slide bar; 21. Infrared ranging sensor; 3. Drive rod; 31. Coil; 4. Rain seat; 41. Drive magnet; 42. Drain hole; 5. Limit seat; 51. Limit magnet; 52. Spring; 6. Tray; 61. Water pump; 62. Water baffle; 7. Circulating water tank; 71. Air pump. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description is provided with reference to the accompanying drawings.

[0028] Example 1 like Figure 1 and 2 As shown in the figure, this specific embodiment provides a rainfall simulation device for testing the waterproof performance of lamps, which includes a frame 1, a tray 6 and a water supply system.

[0029] The frame 1 is equipped with a support slide rod 2 and a drive rod 3. Several coils 31 are arranged on the drive rod 3. A rain seat 4 slides on the support slide rod 2. The rain seat 4 is equipped with a drive magnet 41 that cooperates with the coils 31, and several drainage holes 42 are arranged on the rain seat 4. The coils 31 drive the drive magnets 41 to move the rain seat 4 and adjust its position. Limiting seats 5 are also slidably mounted on the support slide rod 2 at both ends of the rain seat 4. The limiting seats 5 are equipped with limiting magnets 51 that cooperate with the coils 31. The coils 31 drive the limiting magnets 51 to move the limiting seats 5 and attract the limiting magnets 51 to fix the limiting seats 5 to both ends of the rain seat 4. A spring 52 is provided between the limiting seats 5 and the rain seat 4 so that when the rain seat 4 shakes, the spring 52 pushes the rain seat 4 to instantly reset, causing the rain seat 4 to vibrate at a set frequency and change the precipitation pattern. Infrared range sensors 21 are mounted at both ends of the support slide rod 2 to sense the position of the limiting seats 5.

[0030] Tray 6 is located below drain hole 42 and is used to place the lamp to be tested. Tray 6 is surrounded by a water-blocking plate 62 to allow water to accumulate to a set height when the water pump 61 stops working.

[0031] The water supply system includes a water pump 61, a circulating water tank 7, and an air pump 71. One end of the water pump 61 is connected to a pipe in the tray 6, and the other end is connected to a pipe in the circulating water tank 7. The circulating water tank 7 is connected to both the water pump 61 and the drain hole 42. The circulating water tank 7 is equipped with a pressure relief valve and a pressure gauge. When the water pump 61 pumps water from the tray 6 into the circulating water tank 7, or when the water pump 61 stops operating, the pressure relief valve is used to adjust the air pressure in the circulating water tank 7, thereby adjusting the water pressure and duration of the drainage from the drain hole 42. The air pump 71 is connected to the circulating water tank 7 and is used to adjust the air pressure within the circulating water tank 7 to control the water pressure of the drainage.

[0032] The frame 1 is equipped with a baffle 11 surrounding the tray 6 and the rain seat 4, and the baffle 11 is provided with a material handling door 12.

[0033] The following is an instruction manual for using the aforementioned rainfall simulation device for testing the waterproof performance of lighting fixtures.

[0034] When conducting a waterproof performance test on the lamps, the lamps need to be placed in tray 6. At this time, water for testing can be added to the tray, and the water pump 61 can transport the water in tray 6 to the circulating water tank 7 for storage; during this period, the pressure relief valve is controlled to reduce the air pressure in the circulating water tank 7.

[0035] When water is pumped onto the lamps, the water pump 61 transports the water collected in the tray 6 to the circulating water tank 7. At this time, the air pressure in the circulating water tank 7 increases, thus pushing the water stored in the circulating water tank 7 to the drain hole 42, allowing the rainwater to spray onto the lamps. If the water pump 61 stops supplying water to the circulating water tank 7, or if the water flow is insufficient, the air pump 71 can increase the air pressure in the circulating water tank 7, increasing the rainwater pressure. When water accumulates in the tray 6, the water pump 61 increases the flow rate of water from the tray 6 to the circulating water tank 7, while simultaneously controlling the pressure relief valve to reduce the air pressure in the circulating water tank 7, allowing the accumulated water to be stored in the circulating water tank 7.

[0036] If the lamp needs to be immersed for testing, the water pump 61 stops pumping water from the tray 6 to the circulating water tank 7. At this time, the air pump 71 increases the air pressure in the circulating water tank 7, pushing the water stored in the circulating water tank 7 to the drain hole 42 to flow out, and the rainwater is sprayed onto the lamp and accumulates in the tray 6.

[0037] Before the drain hole 42 supplies water to the lamp fixture, a set power of electrical energy can be supplied to the coil 31 around the driving magnet 41. This causes the coil 31 to push the driving magnet 41, moving the rain seat 4 to the target position, thereby adjusting the water supply position of the drain hole 42 so that the water can fall onto the lamp fixture surface. During this period, electrical energy is simultaneously supplied to the coil 31 next to the limiting magnet 51, causing the coil 31 to push the limiting magnet 51, moving the limiting seat 5 to the corresponding position, i.e., next to the rain seat 4. In addition, a current of opposite phase can be supplied to the coil 31 near the target position, allowing the magnetic field generated by the coil 31 to stop the moving rain seat 4 and limiting seat 5. Alternatively, electrical energy of the same phase can be supplied only to the coil 31 at the target position, allowing the magnetic field of the coil 31 to attract the driving magnet 41 and the limiting magnet 51, thus preventing the rain seat 4 and limiting seat 5 from moving, thereby stopping the rain seat 4 at the target position.

[0038] During the process of watering the lamps through the drain hole 42, electrical energy is supplied to the coil 31 next to the limiting magnet 51 to fix the limiting slider. Then, electrical energy is supplied to the coil 31 around the driving magnet 41 at a set speed and in an alternating manner to drive the rain seat 4 to move back and forth rapidly at a set frequency. At the same time, the spring 52 pushes the rain seat 4 to reset, so that the rain seat 4 can vibrate at a set frequency. This causes the water output from the drain hole 42 to vibrate at a set frequency, thereby changing the surface tension of the water flow and the internal turbulence state of the water flow, simulating various wind and rain environments, so that the rain can cover the surface of the lamps more comprehensively.

[0039] Example 2 like Figure 3 and 4As shown in the figure, this specific embodiment provides a rainfall simulation device for testing the waterproof performance of lamps, which includes a frame 1, a tray 6 and a water supply system.

[0040] The frame 1 is equipped with a support slide rod 2 and a drive rod 3. Several coils 31 are arranged on the drive rod 3. A rain seat 4 slides on the support slide rod 2. The rain seat 4 is equipped with a drive magnet 41 that cooperates with the coils 31, and the rain seat 4 has several drainage holes 42. The coils 31 are used to drive the drive magnet 41 to make the rain seat 4 sway to simulate a windy and rainy environment, and to drive the drive magnet 41 to move the rain seat 4 to adjust its position. Infrared range sensors 21 are installed at both ends of the support slide rod 2 to sense the position of the rain seat 4.

[0041] Tray 6 is located below drain hole 42 and is used to place the lamp to be tested. A water-blocking plate 62 is provided around tray 6 to allow water to accumulate to a set height when the water pump 61 is not in operation. A bracket for supporting the lamp is provided inside tray 6.

[0042] The water supply system includes a water pump 61, a circulating water tank 7, and an air pump 71. One end of the water pump 61 is connected to a pipe in the tray 6, and the other end is connected to a pipe in the circulating water tank 7. The circulating water tank 7 is connected to both the water pump 61 and the drain hole 42. The circulating water tank 7 is equipped with a pressure relief valve and a pressure gauge. When the water pump 61 pumps water from the tray 6 into the circulating water tank 7, or when the water pump 61 stops operating, the pressure relief valve is used to adjust the air pressure in the circulating water tank 7, thereby adjusting the water pressure and duration of the drainage from the drain hole 42. The air pump 71 is connected to the circulating water tank 7 and is used to adjust the air pressure within the circulating water tank 7 to control the water pressure of the drainage.

[0043] The frame 1 is equipped with a baffle 11 surrounding the tray 6 and the rain seat 4, and the baffle 11 is provided with a material handling door 12.

[0044] The following is an instruction manual for using the aforementioned rainfall simulation device for testing the waterproof performance of lighting fixtures.

[0045] When testing the waterproof performance of the lamps, the lamps need to be placed in tray 6. At this time, the bracket supports the lamps, maintaining a distance between the lamps and the bottom of tray 6. The space between the lamps and the bottom of tray 6 can then be used to store water. Simultaneously, water pump 61 can transport the water in tray 6 to circulating water tank 7 for storage.

[0046] When water is pumped onto the lamps, the water pump 61 delivers water from the tray 6 to the circulating water tank 7. At this time, the air pressure in the circulating water tank 7 increases, pushing the water stored in the tank to the drain hole 42, allowing the water to spray onto the lamps. If the water pump 61 stops supplying water to the circulating water tank 7, or if the water flow is insufficient, the air pump 71 can increase the air pressure in the circulating water tank 7, thus increasing the water pressure. When water accumulates in the tray 6, the water pump 61 increases the flow rate of water from the tray 6 to the circulating water tank 7, while simultaneously controlling the pressure relief valve to reduce the air pressure in the circulating water tank 7, allowing the accumulated water to be stored in the tank.

[0047] If the lamp needs to be immersed for testing, the water pump 61 stops pumping water from the tray 6 to the circulating water tank 7. At this time, the air pump 71 increases the air pressure in the circulating water tank 7, pushing the water stored in the circulating water tank 7 to the drain hole 42 to flow out, and the rainwater is sprayed onto the lamp and accumulates in the tray 6.

[0048] Before water is supplied to the lamp fixture through the drain hole 42, electrical energy of a set power can be supplied to the coil 31 around the drive magnet 41. This causes the coil 31 to push the drive magnet 41, moving the rain seat 4 to the target position, thereby adjusting the water supply position of the drain hole 42 so that the rain can fall onto the lamp fixture surface. Alternatively, a current of opposite phase can be supplied to the coil 31 near the target position, allowing the magnetic field generated by the coil 31 to stop the moving rain seat 4. Or, only the coil 31 at the target position can be supplied with electrical energy of the same phase, causing the magnetic field of the coil 31 to attract the drive magnet 41 and prevent the rain seat 4 from moving, thus stopping the rain seat 4 at the target position.

[0049] During the process of watering the lamps through the drain hole 42, electrical energy is supplied to the coil 31 around the drive magnet 41 at a set speed and in an alternating manner, which drives the rain seat 4 to sway. The rain seat causes the water output from the drain hole to swing in the air, simulating a windy and rainy environment, so that the water can cover the surface of the lamps more comprehensively.

Claims

1. A rainfall simulation device for testing the waterproof performance of a luminaire, characterized in that, include: A frame (1) is provided with a support slide rod (2) and a drive rod (3). Several coils (31) are arranged on the drive rod (3). A rain seat (4) slides on the support slide rod (2). The rain seat (4) is provided with a drive magnet (41) that cooperates with the coils (31). Several drainage holes (42) are arranged on the rain seat (4). Tray (6), located below the drain hole (42), the tray (6) is used to place the lamp to be tested; A water supply system is connected to the drain hole (42) pipe so that the drain hole (42) outputs rainwater that falls onto the lamp. At this time, the coil (31) is used to drive the drive magnet (41) to shake the rain seat (4) to simulate a wind and rain environment, and to drive the drive magnet (41) to move the rain seat (4) to adjust its position.

2. The rainfall simulation device for testing waterproof performance of a lamp according to claim 1, characterized in that: The support slide rod (2) has a limiting seat (5) located at both ends of the rain seat (4). The limiting seat (5) is provided with a limiting magnet (51) that cooperates with the coil (31). The coil (31) is used to drive the limiting magnet (51) to move the limiting seat (5) and to attract the limiting magnet (51) to fix the limiting seat (5) to both ends of the rain seat (4). A spring (52) is provided between the limiting seat (5) and the rain seat (4) so ​​that when the rain seat (4) shakes, the spring (52) is used to push the rain seat (4) to reset instantly, so that the rain seat (4) vibrates at a set frequency and changes the precipitation pattern.

3. The rainfall simulation device for testing waterproof performance of a lamp according to claim 2, characterized in that: The frame (1) is equipped with infrared ranging sensors (21) located at both ends of the support slide (2) for sensing the position of the rain seat (4).

4. The rainfall simulation device for testing waterproof performance of a lamp according to claim 1, characterized in that, The water supply system includes: A water pump (61) is connected to the tray (6) by a pipe. The tray (6) is provided with a water baffle (62) around its perimeter so that a set height of water can be accumulated when the water pump (61) stops working. The circulating water tank (7) is connected to both the water pump (61) and the drain hole (42) via pipes. The circulating water tank (7) is equipped with a pressure relief valve and a pressure gauge. When the water pump (61) pumps the water accumulated in the tray (6) into the circulating water tank (7), or when the water pump (61) stops working, the pressure relief valve is used to adjust the air pressure of the circulating water tank (7) to adjust the water pressure and duration of the drain hole (42).

5. The rainfall simulation device for testing waterproof performance of a lamp according to claim 4, characterized in that: The water supply system also includes an air pump (71), which is connected to the circulating water tank (7) via a pipe. The air pump (71) is used to adjust the air pressure in the circulating water tank (7) to control the water pressure of the water.

6. The rainfall simulation device for testing waterproof performance of a lamp according to claim 4, characterized in that: The tray (6) is provided with a bracket for supporting the lamp.

7. The rainfall simulation device for testing waterproof performance of a lamp according to claim 1, characterized in that: The frame (1) is equipped with a baffle (11) surrounding the tray (6) and the rain seat (4), and the baffle (11) is provided with a material handling door (12).

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