Large-area steady-state light source

Abstract

A large-area steady-state light source belongs to the field of solar simulators and is characterized by comprising a light source support, a lamp panel, a control panel and a light reflection adjusting device. An adjusting bracket is arranged at the top of one end of the light source bracket provided with the lamp panel; the reflection adjusting device is arranged on the adjusting bracket; the light reflection adjusting device comprises a light reflection plate and a locking plate; a strip-shaped adjusting hole is formed in the locking plate; and a strip-shaped adjusting hole corresponding to the locking plate is formed in the light source bracket. The spectrum light intensity of each module light source is adjustable and controllable by arranging multiple light sources and corresponding control panels, the uniformity of the light source area is further ensured, good heat dissipation of the large-area light source is achieved by arranging a heat dissipation device, meanwhile, compact structures of the light sources and a control and power supply system are achieved, accurate control over the light sources is achieved, and the system is simple in structure and convenient to use. The adjusting support and the reflection adjusting device are arranged at the light source end, the requirement for uniformity consistency is met by adjusting the angle of the reflection plate, and then the uniformity of the light source of the simulator is adjusted.

Description

Technical Field

[0001] The utility model belongs to the field of solar simulators, and in particular relates to a large-area steady-state light source. Background Art

[0002] A steady-state solar simulator is an instrument used to simulate solar radiation. Its main function is to simulate sunlight exposure conditions in an indoor environment in order to conduct scientific experiments and industrial production tests. Faced with the increasing demand for the area of ​​solar panels, the demand for large-area steady-state light sources has become the focus of the issue.

[0003] Traditional solar simulators use xenon lamps, halogen lamps, etc. as light sources, among which xenon lamps are the most widely used. Xenon lamps emit light by ionizing high-pressure xenon gas to generate arcs. Xenon lamp light sources achieve high-level large-area light sources by increasing the supply voltage, increasing the number of xenon lamps, increasing the optical path, and adding filtering devices. The large-area steady-state light source of traditional technology has the following problems: the service life of xenon lamps is 800-1000 hours. After using for more than this number of hours, the spectrum of the xenon lamp will change and this problem cannot be found by naked eye observation, and the measurement results will form a relatively large error. In order to avoid this problem, the xenon lamp needs to be replaced regularly to ensure product stability, and a comparative test needs to be performed after each replacement to ensure the use effect; the realization of a large-area light source requires an increase in the optical path, whether it is side light or top light, the requirements for the occupied space are increased, and the layout of the experimental end or the production line end will have a greater impact; in order to achieve the uniformity index of the light source, it is generally only possible to adjust the optical structure, which has relatively large limitations. Summary of the invention

[0004] The utility model aims to solve the above problems and provides a large-area steady-state light source with a fully surrounded light mixing structure.

[0005] The large-area steady-state light source of the utility model comprises a light source bracket, a light board, a control board and a reflective adjustment device;

[0006] The light source bracket is provided with two supporting layers;

[0007] The aforementioned light panels include a plurality of light panels; the light panels are arranged flat on a supporting layer of the light source bracket;

[0008] The control panels include a plurality of control panels; the control panels are arranged on another supporting layer of the light source bracket corresponding to the light panels; the control panels are used in pairs with the light panels for one-to-one control of the light panels;

[0009] A heat dissipation device is provided between the light board and the control board; the heat generated by the light board and the control board during operation is promptly dissipated and cooled by the heat dissipation device, so that the entire light source is at a suitable operating temperature;

[0010] The light source bracket is provided with an adjustment bracket on the top of one end where the light board is provided; the adjustment bracket is provided at one end of the light board for installing a reflective adjustment device, and the reflective adjustment device is used to adjust the uniformity of the light source;

[0011] The aforementioned reflective adjustment device is arranged on the adjustment bracket;

[0012] The reflective adjustment device comprises a reflective plate and a locking plate;

[0013] The adjusting bracket is rectangular;

[0014] The reflector is arranged on one side of the adjustment bracket;

[0015] One end of the adjustment bracket is connected to the aforementioned light source bracket through a hinge; a locking plate is fixedly provided on both sides of the other end of the adjustment bracket; and a strip-shaped adjustment hole is provided on the locking plate;

[0016] The light source bracket is provided with a strip-shaped adjustment hole corresponding to the locking plate, which is used to adjust the angle between the adjustment bracket connected to the locking plate and the light source bracket, thereby adjusting the uniformity of the simulator light source.

[0017] Furthermore, in the large-area steady-state light source of the utility model, the heat dissipation device includes a heat sink and a cooling fan;

[0018] The heat sink includes a control board heat sink and a lamp board heat sink;

[0019] The control board heat sink is fixedly connected to the control board through one end; the control board heat sink is arranged perpendicular to the control board; the control board heat sink is used to regulate the heat dissipation of the heat generated by the control board during operation;

[0020] The light board heat sink is fixedly connected to the light board through one end; the light board heat sink is arranged perpendicular to the light board; the light board heat sink is used to regulate the heat dissipation of the heat generated by the light board during operation;

[0021] The heat sink is located between the aforementioned lamp board and the control board;

[0022] The light board heat sink and the control board heat sink are arranged crosswise and opposite to each other; a heat dissipation duct is formed between the light board heat sink and the control board heat sink;

[0023] The cooling fan is arranged at one end of the aforementioned heat dissipation air duct; by arranging a cooling fan at one end of the heat dissipation air duct to provide cold air, the heat dissipation effect of the heat sink is accelerated, thereby improving the stability of the entire large-area steady-state light source.

[0024] Furthermore, in the large-area steady-state light source of the utility model, the heat dissipation device includes a cooling plate;

[0025] The control board and the lamp board are provided with a cooling plate on opposite sides thereof, or share a cooling plate; the cooling plate is located between the control board and the lamp board;

[0026] A water cooling channel is arranged in the cooling plate; a water outlet and a water inlet are arranged on the cooling plate; the water outlet and the water inlet are connected through the water cooling channel; the heat generated by the lamp board and the control board during operation is dissipated and regulated by the cooling plate.

[0027] Furthermore, in the large-area steady-state light source described in the utility model, the lamp board is an LED lamp; the lamp board includes several different LED lamps; a plurality of different LED lamps are arranged to meet the requirements of the IEC60904-9 standard and well match the spectrum requirements of AM1.5.

[0028] The large-area steady-state light source described in the utility model ensures the adjustable and controllable spectral intensity of each module light source by setting up multiple light sources and corresponding control panels, thereby ensuring the uniformity of the light source area, and achieving good heat dissipation of the large-area light source by setting up a heat dissipation device, while realizing a compact structure of the light source, control and power supply system, and realizing precise control of the light source. By arranging an adjustment bracket and a reflective adjustment device at the light source end and adjusting the angle of the reflector to achieve the uniformity requirement, the uniformity of the simulator light source can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of a large-area steady-state light source according to the first embodiment of the utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the heat dissipation device described in Embodiment 1 of the present utility model;

[0031] Figure 3 This is a schematic diagram of the structure of a large-area steady-state light source according to the second embodiment of the present utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the heat dissipation device described in Embodiment 2 of the present utility model;

[0033] Figure 5 This is a schematic diagram of the structure of the adjustment bracket and the reflective adjustment device according to the embodiment of the utility model;

[0034] Among them, 1-light board, 2-control board, 3-control board heat sink, 4-light board heat sink, 5-adjustment bracket, 6-locking plate, 7-strip adjustment hole, 8-cooling fan, 9-cooling cooling plate, 10-water inlet and outlet, 11-hinge, 12-reflective plate, 13-pressing block. DETAILED DESCRIPTION

[0035] The large-area steady-state light source of the utility model is described in detail below through the accompanying drawings and embodiments.

[0036] Embodiment 1

[0037] The large-area steady-state light source of the utility model described in this embodiment is as follows: Figure 1 As shown, it includes a light source bracket, a light board 1, a control board 2 and a reflective adjustment device;

[0038] In the disclosed embodiment, the light source bracket is provided with two supporting layers; the aforementioned lamp board 1 includes several; the lamp board 1 is flatly arranged on the supporting layer below the light source bracket, and the light source irradiates downward to form upper lighting, that is, the light source is located above, and the sample to be tested is below the light source; the lamp board 1 is an LED lamp; the lamp board 1 includes several different kinds of LED lamps.

[0039] The control panel 2 includes a plurality of control panels; the control panel 2 is arranged on a supporting layer above the light source bracket corresponding to the light panel 1; the control panel 2 is arranged in pairs with the light panel 1 for one-to-one control of the light panel 1;

[0040] A heat dissipation device is provided between the light board 1 and the control board 2; the heat generated by the light board 1 and the control board 2 during operation is promptly dissipated and cooled by the heat dissipation device, so that the entire light source is at a suitable operating temperature;

[0041] The light source bracket is provided with an adjustment bracket 5 at the top of one end where the light board 1 is provided; in the embodiment disclosed in the present invention, the adjustment bracket 5 is located at the lowest end and is provided around the entire light board 1 structure; the adjustment bracket 5 is provided at one end of the light board 1 for installing a reflective adjustment device. In the embodiment disclosed in the present invention, the light source bracket is provided with an adjustment bracket 5 and a reflective adjustment device around one end where the light board 1 is provided, and the uniformity of the light source is adjusted by the reflective adjustment device; in actual applications, adjustments can be made according to actual conditions.

[0042] The aforementioned reflective adjustment device is arranged on the adjustment bracket 5; the reflective adjustment device comprises a reflective plate 12 and a locking plate 6; in the embodiment of the present disclosure, the adjustment bracket 5 is rectangular, and is formed by four support rods connected end to end to form a frame; the reflective plate 12 is arranged on one side of the adjustment bracket 5, and the reflective surface of the reflective plate 12 faces the side of the light source. In the embodiment of the present disclosure, the upper and lower ends of the reflective plate 12 are both provided with pressing blocks 13 for fixing the reflective plate 12; Figure 5As shown, one end of the adjustment bracket 5 is connected to the aforementioned light source bracket through a hinge 11; a locking plate 6 is fixedly arranged on both sides of the other end of the adjustment bracket 5; a strip-shaped adjustment hole 7 is arranged on the locking plate 6; and the aforementioned light source bracket is provided with a strip-shaped adjustment hole 7 corresponding to the locking plate 6. In the embodiment disclosed herein, the locking plate 6 and the light source bracket are fixed at one end of the strip-shaped adjustment hole 7 by a long screw passing through the strip-shaped adjustment hole 7. By positioning the long screw at the strip-shaped adjustment hole 7, the angle between the adjustment bracket 5 connected to the locking plate 6 and the light source bracket can be adjusted, that is, the reflection angle of the light emitted by the light source by the reflector 12 can be adjusted, thereby adjusting the uniformity of the simulator light source.

[0043] like Figure 2 As shown, in the embodiment of the present disclosure, the heat dissipation device includes a heat sink and a cooling fan 8; the heat sink includes a control board heat sink 3 and a lamp board heat sink 4; the control board heat sink 3 is fixedly connected to the control board 2 through one end; the control board heat sink 3 is arranged perpendicular to the control board 2; the control board heat sink 3 is used for heat dissipation regulation of the heat generated by the control board 2 during operation; the lamp board heat sink 4 is fixedly connected to the lamp board 1 through one end; the lamp board heat sink 4 is arranged perpendicular to the lamp board 1; the lamp board heat sink 4 is used for heat dissipation regulation of the heat generated by the lamp board 1 during operation; the heat sink is located between the aforementioned lamp board 1 and the control board 2; the lamp board heat sink 4 and the control board heat sink 3 are arranged crosswise and oppositely; a heat dissipation duct is formed between the lamp board heat sink 4 and the control board heat sink 3; the cooling fan 8 is arranged at one end of the aforementioned heat dissipation duct; by arranging the cooling fan 8 at one end of the heat dissipation duct to provide cold air, the heat dissipation effect of the heat sink is accelerated, thereby improving the stability of the entire large-area steady-state light source.

[0044] When in use, the large-area steady-state light source of the utility model is started, the light source board provides the light source, and the control board 2 adjusts and controls the light source board as needed; at the same time, by adjusting the position of the long screw in the strip adjustment hole 7 provided on the locking plate 6 and the light source bracket, the angle between the adjustment bracket 5 and the light source bracket is adjusted, and then the angle between the reflector 12 provided on the adjustment bracket 5 and the light source bracket is adjusted, thereby achieving the adjustment of the uniformity of the light source and meeting practical needs.

[0045] When the large-area steady-state light source described in the utility model is working, the heat emitted by the light source board and the control board 2 is dissipated through the control board heat sink 3 and the lamp board heat sink 4 connected thereto, respectively. At the same time, under the action of the cooling fan 8, the cooling air is blown through the air duct formed by the heat sink, further improving the heat dissipation effect.

[0046] Embodiment 2

[0047] This embodiment discloses a large-area steady-state light source, which is different from the first embodiment mainly in the difference of the heat dissipation device; at the same time, in the embodiment disclosed, Figure 3 As shown, the light board 1 is laid flat on a supporting layer on which the light source bracket is located, and the light source irradiates upward to form downward lighting, that is, the light source is located below and the sample to be tested is above the light source.

[0048] In the embodiments of the present disclosure, Figure 4 As shown, the heat dissipation device includes a cooling plate 9; the control board 2 and the lamp board 1 share a cooling plate 9 on the opposite side; the cooling plate 9 is located between the control board 2 and the lamp board 1; a water cooling channel is arranged in the cooling plate 9; a water inlet and outlet 10 (including a water outlet and a water inlet) is arranged on the cooling plate 9; the water outlet is connected to the water inlet through a water cooling channel; in specific applications, the cooling water can be provided by a water chiller or by a water tower; the heat generated by the lamp board 1 and the control board 2 during operation is dissipated and adjusted by the cooling plate 9.

[0049] When in use, the large-area steady-state light source of the utility model is started, the light board provides the light source, and the control board 2 adjusts and controls the light board as needed; at the same time, by adjusting the position of the long screw in the strip adjustment hole 7 provided on the locking plate 6 and the light source bracket, the angle between the adjustment bracket 5 and the light source bracket is adjusted, and then the angle between the reflector 12 provided on the adjustment bracket 5 and the light source bracket is adjusted, thereby achieving the adjustment of the uniformity of the light source and meeting practical needs.

[0050] When the large-area steady-state light source described in the utility model is working, the heat emitted by the light board and the control board 2 is dissipated through the cooling plates 9 connected thereto, respectively. The cooling water enters the cooling plate 9 from the water inlet and circulates through the water path set therein before flowing out from the water outlet, taking away the heat generated by the light board 1 and the control board 2 during work during the cold flow process.

Claims

1. A large-area steady-state light source, characterized in that: It includes a light source bracket, a light board, a control board and a reflective adjustment device; The light source bracket is provided with two supporting layers; The aforementioned light panels include a plurality of light panels; the light panels are arranged flat on a supporting layer of the light source bracket; The control panels include a plurality of control panels; the control panels are arranged on another supporting layer of the light source bracket corresponding to the aforementioned light panels; A heat dissipation device is provided between the lamp board and the control board; The light source bracket is provided with an adjustment bracket at the top of one end where the light board is provided; The aforementioned reflective adjustment device is arranged on the adjustment bracket; The reflective adjustment device comprises a reflective plate and a locking plate; The adjusting bracket is rectangular; The reflector is arranged on one side of the adjustment bracket; One end of the adjustment bracket is connected to the aforementioned light source bracket through a hinge; a locking plate is fixedly provided on both sides of the other end of the adjustment bracket; and a strip-shaped adjustment hole is provided on the locking plate; The light source bracket is provided with a strip-shaped adjustment hole corresponding to the locking plate.

2. The large-area steady-state light source according to claim 1, characterized in that: The heat dissipation device comprises a heat sink and a cooling fan; The heat sink includes a control board heat sink and a lamp board heat sink; The control board heat sink is fixedly connected to the control board through one end; the control board heat sink is arranged perpendicular to the control board; The light board heat sink is fixedly connected to the light board through one end; the light board heat sink is arranged perpendicular to the light board; The heat sink is located between the aforementioned lamp board and the control board; The light board heat sink and the control board heat sink are arranged crosswise and opposite to each other; a heat dissipation duct is formed between the light board heat sink and the control board heat sink; The cooling fan is arranged at one end of the heat dissipation duct.

3. The large-area steady-state light source according to claim 1, characterized in that: The heat dissipation device comprises a cooling plate; The control board and the lamp board are provided with a cooling plate on opposite sides thereof, or share a cooling plate; the cooling plate is located between the control board and the lamp board; A water cooling channel is arranged in the cooling plate; a water outlet and a water inlet are arranged on the cooling plate; the water outlet and the water inlet are connected through the water cooling channel.

4. The large-area steady-state light source according to claim 1, 2 or 3, characterized in that: The light board is an LED light; the light board includes several different kinds of LED lights.

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