Multi-angle and multi-dimensional infrared sunlight simulation system

Abstract

The utility model discloses a multi-angle and multi-dimensional infrared sunlight simulation system, which comprises a mounting bracket used for forming an arc hoisting surface; the light source radiators are arranged on the arc hoisting surface, and the light source radiation directions uniformly face the test area; the light intensity adjusting assembly comprises filters arranged at light outlets of the light source radiators or on the inner side of the arc hoisting surface, the filters are of hollow interlayer structures and are filled with fluid-shaped light-transmitting media, and the edges of the filters are communicated with guide pipes allowing the light-transmitting media to flow; and the control assembly is configured to be in control connection with the light source radiators and the light-transmitting medium driving pump and is used for controlling parameters of the light source radiators and the light-transmitting medium. The light source radiator outputs light to be radiated to the to-be-tested piece, meanwhile, the fluid-shaped light-transmitting medium is injected, so that the light radiation parameters irradiated to the to-be-tested piece are continuously changed, the light intensity changes in all natural environments can be simulated through the parameter changes of the light-transmitting medium, and therefore all performance expressions of the to-be-tested piece under natural sunlight irradiation are obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of illumination testing equipment, and more specifically, to a multi-angle and multi-dimensional infrared sunlight simulation system. Background Art

[0002] The full-spectrum sunlight simulation test chamber is mainly used to test the aging characteristics of many automobiles or their components. Through the sunlight simulation system, the aging performance of complete sets of parts or vehicles under sunlight can be detected.

[0003] The current improvement direction of the sunlight simulation system focuses more on the uniformity of the light source during the test, so as to simulate the real sunlight exposure situation more realistically. In order to ensure the uniformity of the light during the test, a series of sites will be selected according to the set rules and the light intensity of the above sites will be detected, and the uniformity of the light will be determined according to the difference in the light intensity value. At the same time, in the solar simulator, the sunlight at different times and locations can be simulated by controlling the brightness and position of the light source. In practice, we know that the angle between the DUT and the light source and the state of the DUT itself are constantly changing. For example, the angle between the car and the light source (sun) will change at any time during driving, and the car body itself is also in a state of motion and bumps. At the same time, the light intensity will also change with the change of the environment in which the car body is located. If the stationary DUT is tested with uniform light intensity and fixed light angle, it is obviously not a good simulation to obtain the performance of the DUT after being exposed to light in the use state. Utility Model Content

[0004] In view of the problem that the actual application of the vehicle sunlight simulation system cannot accurately simulate the performance changes caused by the long-term exposure to natural light when the vehicle body is in motion, the purpose of this utility model is to propose a multi-angle and multi-dimensional infrared sunlight simulation system, which can simulate the lighting situation of the car in motion, and then detect the performance of the car body after a long-term operation in the lighting environment. The specific scheme is as follows:

[0005] A multi-angle and multi-dimensional infrared sunlight simulation system, comprising:

[0006] The mounting bracket includes a plurality of arc-shaped hangers arranged in sequence to form an arc-shaped hanging surface, and a test area is configured below the arc-shaped hanging surface;

[0007] A plurality of light source radiators are arranged on the arc hanging surface and the radiation direction of the light source is uniformly directed toward the test area;

[0008] The light intensity adjustment component includes a filter disposed at the light outlet of each light source radiator or inside the inner side of the arc-shaped hoisting surface. The filter is arranged as a hollow sandwich structure, filled with a fluid light-transmitting medium. A conduit communicating with the edge of the filter is provided for injecting or discharging the light-transmitting medium into the hollow sandwich, and the conduit is connected to a plurality of light-transmitting medium storage tanks through a driving pump.

[0009] The control component is configured to be controllably connected to each of the light source radiators and the driving pump, and is used to control the output state of the light source radiator and the parameters of the light-transmitting medium in the filter.

[0010] Through the above technical solution, the light source radiator outputs light radiation with set parameters and irradiates the test piece. At the same time, by injecting a fluid light-transmitting medium into the filter, the light radiation parameters such as light intensity irradiating the test piece change. Since the parameter change of the light-transmitting medium is continuous, the change of the light radiation parameters irradiating the test piece is also continuous. Moreover, various changes in the light intensity in natural environments can be simulated by using the parameter change of the light-transmitting medium, so that the performance of the test piece under natural sunlight irradiation can be obtained more accurately.

[0011] Furthermore, the simulation system further includes:

[0012] The vibration component includes a vibration table for placing the test piece disposed in the test area and a vibration motor for driving the vibration table to vibrate. A binding device for fixing the test piece is arranged on the vibration table, and the vibration motor is controllably connected to the control component.

[0013] Through the above technical solution, the test piece vibrates itself during the test, thus more accurately simulating the performance of the vehicle body under sunlight irradiation during operation.

[0014] Furthermore, the simulation system further includes:

[0015] The air flow component includes at least one blower disposed around the test area. The blower is controllably connected to the control component and the air outlet direction is set towards the test area.

[0016] The temperature control component includes a heat exchanger disposed between the air outlet of the blower and the test area. The heat exchanger is controllably connected to the controller and is used to output heat or cold.

[0017] Through the above technical solution, an air flow with set temperature and flow rate can be generated in the test area to more accurately simulate the light environment under various conditions.

[0018] Furthermore, the cross-section of the hanger is C-shaped and the opening is located on the side close to the test area, and a chute is formed along the length direction of the hanger.

[0019] At least one connecting block is slidably arranged in the sliding groove, and an annular transmission chain for driving the connecting block to slide is arranged in the sliding groove. Each of the light source radiators is respectively installed on each of the connecting blocks;

[0020] A driving motor for driving the transmission chain to move is arranged at the end or top of the hanging bracket, and the driving motor is controllably connected to the control component.

[0021] Through the above technical solution, the positions of the respective light source radiators can be controlled, and thus the light radiation angles of the respective light source radiators can be controlled and adjusted, so as to simulate a more real and accurate sunlight irradiation environment.

[0022] Furthermore, the light source radiator is rotatably connected to the connecting block, and an angle adjuster for locking the angle formed therebetween is arranged therebetween.

[0023] Through the above technical solution, the light radiation angles of the respective light source radiators can be adjusted, so as to better simulate the illumination environment received by the test piece when it is in use.

[0024] Furthermore, the filter is arranged at the light outlet of each light source radiator and is connected to the outer shell of each light source radiator. The filter includes two hard transparent lenses, and a filling cavity for filling a light-transmitting medium is formed between the two lenses.

[0025] Furthermore, the filter is arranged inside the arc-shaped hanging surface and is connected to the mounting bracket. The filter includes two flexible transparent lenses, and a filling cavity for filling a light-transmitting medium is formed between the two lenses;

[0026] Wherein, the bending radian of the filter is the same as that of the arc-shaped hanging surface.

[0027] Through the above technical solution, a filling cavity is integrally arranged between the light outlet of the light source radiator and the test area. By filling the light-transmitting medium into the above filling cavity, parameters such as the illumination intensity in the test area can be changed, and thus the situation when the test area is illuminated can be simulated more realistically.

[0028] Furthermore, the light source radiator includes one or a combination of a xenon lamp, a metal halide lamp, and a UV light source lamp.

[0029] Through the above technical solution, various illumination scenarios such as solar radiation and ultraviolet radiation can be simulated, and the illumination parameters can be flexibly adjusted.

[0030] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0031] (1) The light radiation output by the light source radiator with set parameters irradiates the component under test. At the same time, by injecting a fluid light-transmitting medium into the filter, the light radiation parameters of the light irradiating the component under test change. Since the parameter change of the light-transmitting medium is continuous, the change in the light radiation parameters of the light irradiating the component under test is also continuous. Thus, the change in the light intensity in various natural environments is simulated, and the performance of the component under test under natural sunlight irradiation can be obtained more accurately.

[0032] (2) By setting up a vibration component and an air flow component, the real environment where the component under test is irradiated by light can be simulated more accurately, which helps to improve the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Overall schematic of the sunlight simulation system Figure 1 (Front view);

[0034] Figure 2 Overall schematic of the sunlight simulation system Figure 2 (Side view);

[0035] Figure 3 Schematic of the cooperation between the sliding groove and the connecting block Figure 1 ;

[0036] Figure 4 Schematic of the cooperation between the sliding groove and the connecting block Figure 2 .

[0037] Reference numerals: 1, hanger; 2, longitudinal beam; 3, light source radiator; 4, sliding groove; 5, connecting block; 6, drive chain; 7, support wheel; 8, drive motor; 9, filter; 10, light-transmitting medium; 11, conduit; 12, vibration table; 13, axial flow fan; 14, heat exchanger; 15, test area. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The present application will be further described in detail below with reference to the embodiments and the drawings, but the embodiments of the present invention are not limited thereto.

[0039] A multi-angle and multi-dimensional infrared sunlight simulation system, as Figure 1 and Figure 2 shown, mainly includes an installation bracket, a light source radiator 3, a light intensity adjustment component, and a control component.

[0040] The installation bracket includes a plurality of circular arc-shaped hangers 1 arranged in sequence. The plurality of circular arc-shaped hangers 1 are connected by a plurality of longitudinal beams 2 to form a downward-opening circular arc hoisting surface. The test area 15 is arranged below the circular arc hoisting surface for placing the component under test.

[0041] The light source radiators 3 are configured in multiple numbers, including one or a combination of xenon lamps, metal halide lamps, and UV light source lamps, all of which are arranged on the above-mentioned arc-shaped hoisting surface and the light source radiation directions are evenly directed towards the test area 15. In the embodiment of the present application, the cross-section of the hanger 1 is C-shaped and the opening is located on the side close to the test area 15, and a chute 4 is formed along the length direction of the hanger 1. At least one connecting block 5 is slidably arranged in the chute 4 on the same hanger 1. The body of the connecting block 5 has a T-shaped connection structure that cooperates with the chute 4. The T-shaped structure of the connecting block 5 is located in the chute 4, and the rest is located outside the chute 4 and used as a connection base. In actual application, multiple sliders can be configured according to needs, and each light source radiator 3 is respectively installed on each connecting block 5 through installation parts such as bolts.

[0042] As Figure 3 and Figure 4 As shown, a ring-shaped drive chain 6 for driving the sliding of the connecting block 5 is arranged along the length direction in the chute 4. The above-mentioned drive chain 6 is arranged in a closed loop. Tensioning gears for tensioning the drive chain 6 are arranged at both ends of the chute 4. At the same time, several support wheels 7 for supporting the drive chain 6 to be located inside the chute 4 are arranged in the middle of the chute 4. In detail, in a specific embodiment, the part of the connecting block 5 located in the chute 4 is fixedly connected to the drive chain 6, such as by binding or locking with bolts. Thus, it can not only drive the connecting block 5 to move along the chute 4 by the movement of the drive chain 6, but also use the connection relationship between the connecting block 5 and the chute 4 to support the drive chain 6 so that it will not fall out of the chute 4.

[0043] As Figure 2 As shown, a drive motor 8 for driving the movement of the drive chain 6 is arranged at the end of the hanger 1. In actual application, the above-mentioned drive motor 8 can also be arranged at the top of the hanger 1. The above-mentioned drive motor 8 is controlledly connected to the control component and is drivingly connected to the drive chain 6 through a corresponding transmission component, such as driving the drive chain 6 to move by driving a tensioning gear through a reduction gear set, or directly driving the drive chain 6 to move through a drive gear. In actual application, the number of the above-mentioned drive motors 8 is configured in multiple numbers and is respectively arranged corresponding to different hangers 1. The above technical solution can control the positions of the respective light source radiators 3, and further control and adjust the light radiation angles of the respective light source radiators 3 to simulate a more real and accurate sunlight irradiation environment.

[0044] Optimized, the light source radiator 3 is rotatably connected to the connecting block 5, and an angle adjuster is provided therebetween for locking the angle formed by the two. Specifically, connecting lugs are provided on both sides of the bottom of the light source radiator 3, and a pin shaft matching the connecting lugs is provided on the connecting block 5. The angle adjuster includes a plurality of locking holes provided on the connecting block 5, the plurality of locking holes are arranged around the pin shaft, and a through hole is provided on the connecting lug. After the light source radiator 3 is rotatably connected to the pin shaft through the connecting lug, a pin or a bolt is used to pass through the through hole and then inserted or screwed into a certain locking hole, thereby realizing the angle locking between the light source radiator 3 and the connecting block 5. Through the above technical solution, the light radiation angles of the respective light source radiators 3 can be adjusted to better simulate the illumination environment received by the test piece when it is in the use state.

[0045] When the test piece is in the actual illumination environment, the illumination parameters, such as the light intensity and other parameters, will change with the environment where the test piece is located. For example, when sunlight is blocked by clouds, the light intensity irradiated on the test piece will change, and the above changes are continuous changes. In order to more accurately simulate the actual illumination state of the test piece, therefore, in the embodiment of the present application, the light intensity adjustment component includes a filter 9 provided at the light outlet of each light source radiator 3 or inside the arc-shaped hoisting surface. The filter 9 is provided as a hollow sandwich structure, and a fluid light-transmitting medium 10 is filled in the filter 9. A conduit 11 for injecting or discharging the light-transmitting medium 10 into the hollow sandwich is connected to the edge of the filter 9, and the conduit 11 is connected to a plurality of light-transmitting medium 10 storage tanks through a driving pump.

[0046] Specifically, in one embodiment, the above filter 9 is provided at the light outlet of each light source radiator 3 and is connected to the outer shell of each light source radiator 3 through a connecting member such as a screw or a buckle. The filter 9 includes two hard transparent lenses, and a filling cavity for filling the light-transmitting medium 10 is formed between the two lenses. Preferably, in order to reduce the influence of the transparent lens itself on the light, the thickness of the above lens should not be too large, and it is preferably made of a material with a small refractive index value and resistance to thermal shock.

[0047] In another embodiment, the above filter 9 is provided inside the arc-shaped hoisting surface and is connected to the mounting bracket. The filter 9 includes two flexible transparent lenses, and a filling cavity for filling the light-transmitting medium 10 is formed between the two lenses. Among them, the bending radian of the filter 9 is the same as the overall bending radian of the arc-shaped hoisting surface. The above technical solution integrally provides a filling cavity between the light outlet of the light source radiator 3 and the test area 15. By filling the light-transmitting medium 10 into the above filling cavity, parameters such as the light intensity in the test area 15 can be changed, thereby more realistically simulating the situation when the test area 15 is illuminated.

[0048] In the embodiment of the present application, the light-transmitting medium 10 is preferably air with liquid suspension particles of a specific size. In a specific embodiment, water with different salinities can also be used.

[0049] In the embodiment of the present application, the control component is configured to be controlled and connected to each light source radiator 3 and the driving pump. The control component mainly includes a single-chip microcomputer control module, which is used to control the output state of the light source radiator 3 and the parameters of the light-transmitting medium 10 in the filter 9. In specific practice, the above-mentioned light source radiator 3 includes an optical simulation radiator and an EPS electronic power supply, and the above-mentioned EPS electronic power supply is controlled and connected to the control component through an RS485 communication module.

[0050] In order to more realistically simulate the working state of the test piece when it is illuminated under natural conditions, further, as Figure 1 shown, the simulation system further includes a vibration component. The above-mentioned vibration component includes a vibration table 12 for placing the test piece arranged in the test area 15 and a vibration motor for driving the vibration table 12 to vibrate. The vibration motor is arranged below the vibration table 12. The vibration table 12 is rectangularly arranged and support springs are arranged at the four corners. A binding device for fixing the test piece, such as a binding rope, etc., is arranged on the table surface of the vibration table 12. The above-mentioned vibration motor is controlled and connected to the control component and vibrates itself during the test, thereby more accurately simulating the performance of the vehicle body when it is irradiated by sunlight during operation.

[0051] Further optimized, the simulation system further includes an air flow component and a temperature control component. The air flow component includes an axial flow fan 13 arranged around the test area 15. The axial flow fan 13 is controlled and connected to the control component and the air outlet direction is set towards the test area 15. During the test, an air flow with a set speed can be simulated according to needs. The temperature control component includes a heat exchanger 14 (for the sake of clarity, Figure 1 the part of the heat exchanger 14 is omitted in the figure), such as a plate heat exchanger 14 connected to an external condenser. The heat exchanger 14 is controlled and connected to the controller to output heat or cold, thereby changing the temperature of the air flow and finally adjusting the temperature in the test area 15 to more accurately simulate the illumination environment under various conditions.

[0052] The working principle and beneficial effects of the present application are as follows:

[0053] The light radiation output by the light source radiator 3 with set parameters irradiates the component to be measured. At the same time, by injecting the fluid light-transmitting medium 10 into the filter 9, the light radiation parameters such as the light intensity irradiated on the component to be measured change. Since the parameter change of the light-transmitting medium 10 is continuous, the change of the light radiation parameters irradiated on the component to be measured is also continuous. Moreover, by using the parameter change of the above light-transmitting medium 10, the change of the light intensity in various natural environments can be simulated. Thus, the various performance characteristics of the component to be measured under natural sunlight irradiation can be obtained more accurately.

[0054] The above description is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A multi-angle and multi-dimensional infrared sunlight simulation system, characterized in that: include: The mounting bracket comprises a plurality of arc-shaped hangers (1) arranged in sequence to form an arc-shaped hanging surface, and a test area (15) is configured below the arc-shaped hanging surface; A plurality of light source radiators (3) are arranged on the arc hanging surface and the light source radiates in a uniform direction toward the test area (15); A light intensity adjustment component comprises a filter (9) arranged at the light outlet of each light source radiator (3) or arranged on the inner side of the arc hanging surface, the filter (9) being arranged as a hollow sandwich structure, the filter (9) being filled with a fluid-like light-transmitting medium (10), the edge of the filter (9) being connected to a conduit (11) for injecting or discharging the light-transmitting medium (10) into the hollow sandwich, and the conduit (11) being connected to a plurality of light-transmitting medium (10) storage tanks via a driving pump; The control component is configured to be connected to each of the light source radiators (3) and the driving pump for controlling the output state of the light source radiator (3) and the parameters of the light-transmitting medium (10) in the filter (9).

2. The multi-angle and multi-dimensional infrared sunlight simulation system according to claim 1, characterized in that: The simulation system also includes: The vibration component comprises a vibration table (12) arranged in a test area (15) for placing a test piece and a vibration motor for driving the vibration table (12) to vibrate, wherein a binding device for fixing the test piece is arranged on the vibration table (12), and the vibration motor is control-connected to the control component.

3. The multi-angle and multi-dimensional infrared sunlight simulation system according to claim 1, characterized in that: The simulation system also includes: An airflow component, comprising at least one fan arranged around the test area (15), the fan being control-connected to the control component and having an air outlet direction toward the test area (15); The temperature control component comprises a heat exchanger (14) arranged between the air outlet of the fan and the test area (15); the heat exchanger (14) is connected to the controller for outputting heat or cold.

4. The multi-angle and multi-dimensional infrared sunlight simulation system according to claim 1, characterized in that: The hanger (1) has a C-shaped cross section and an opening located on a side close to the test area (15), and a slide groove (4) is formed along the length direction of the hanger (1); At least one connecting block (5) is slidably arranged in the slide groove (4), an annular transmission chain (6) for driving the connecting block (5) to slide is arranged in the slide groove (4), and each of the light source radiators (3) is respectively mounted on each of the connecting blocks (5); A driving motor (8) for driving the transmission chain (6) to move is arranged at the end or top of the hanger (1), and the driving motor (8) is controllably connected to a control component.

5. The multi-angle and multi-dimensional infrared sunlight simulation system according to claim 4, characterized in that: The light source radiator (3) and the connecting block (5) are rotatably connected, and an angle adjuster for locking the angle between the two is provided between the two.

6. The multi-angle and multi-dimensional infrared sunlight simulation system according to claim 1, characterized in that: The filter (9) is arranged at the light outlet of each light source radiator (3) and is connected to the outer shell of each light source radiator (3). The filter (9) comprises two hard transparent lenses, and a filling cavity for filling a light-transmitting medium (10) is formed between the two lenses.

7. The multi-angle and multi-dimensional infrared sunlight simulation system according to claim 1, characterized in that: The filter (9) is arranged on the inner side of the arc hanging surface and connected to the mounting bracket. The filter (9) comprises two flexible transparent lenses, and a filling cavity for filling a light-transmitting medium (10) is formed between the two lenses. Wherein, the bending curvature of the filter (9) is the same as the bending curvature of the circular arc hanging surface.

8. The multi-angle and multi-dimensional infrared sunlight simulation system according to claim 1, characterized in that: The light source radiator (3) comprises one or more combinations of a xenon lamp, a metal halide lamp and a UV light source lamp.

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