CN113758860B - Adjustable sunlight simulation test device and control method - Google Patents
Adjustable sunlight simulation test device and control method Download PDFInfo
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- CN113758860B CN113758860B CN202110934664.5A CN202110934664A CN113758860B CN 113758860 B CN113758860 B CN 113758860B CN 202110934664 A CN202110934664 A CN 202110934664A CN 113758860 B CN113758860 B CN 113758860B
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Abstract
The invention discloses an adjustable sunlight simulation test device and a control method, wherein the device comprises a truss, lamp groups and multi-dimensional movable lamp holder groups which are uniformly distributed along the circumference of the center of the truss, the multi-dimensional movable lamp holder groups comprise lamp group overturning angle control units, lamp group translation distance control units and lamp group lifting movement control units, the lamp group overturning angle control units are hinged with the truss, the lamp group translation distance control units are slidably connected with the lamp group overturning angle control units, the lamp group lifting movement control units are connected with the lower ends of the lamp group translation distance control units, and the lamp groups are connected with the bottoms of the lamp group lifting movement control units. The device is used for testing, so that the problem that multiple samples cannot be tested simultaneously in the environment in the prior art is solved.
Description
Technical Field
The invention relates to an adjustable sunlight simulation test device and a control method, and belongs to the technical field of environmental tests.
Background
The sunlight simulation system can simulate the illumination intensity of the vehicle under the natural light source condition, is an important device for simulating the generation of the thermal load of the carriage in the whole vehicle air conditioning test, and is usually installed in an environmental cabin to form a comprehensive environmental test cabin capable of adjusting physical parameters including illumination intensity, humidity, temperature, head-on wind speed and the like.
The environment tests carried out in the environment laboratory all need the working condition of solar radiation, and the real simulation of the solar simulation working condition is related to the success and failure of the test, so that the performance of the solar simulation device is self-evident to the importance of the environment cabin.
In the prior art, the testing means are relatively dead plates, are mostly fixed or integrally movable, lack the capability of adjusting according to actual test requirements, and have low flexibility; most of the solar simulation devices are single function tests of the whole machine environment or the component environment, do not have the conditions of carrying out tests on multiple products at the same time, are poor in economical efficiency, and are more economical and efficient in consideration of the multifunctional solar simulation devices of the whole machine and the components; the adjustment of the angle of the light is concentrated on the adjustment of the lamp itself, and under the condition of containing a large number of lamp groups, the accuracy of batch adjustment is difficult, and the whole lamp group is adjusted to realize more efficient adjustment of the angle of the light from the whole lamp group.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide an adjustable sunlight simulation test device and a control method, which solve the problem that the device in the prior art cannot meet the requirement of simultaneously carrying out environmental tests on multiple samples.
In order to achieve the above object, the present invention adopts the following technical scheme:
the utility model provides a sunshine analogue test device with adjustable, including the truss, banks and be the multi-dimensional movable lighting fixture group of circumference equipartition along the truss center, multi-dimensional movable lighting fixture group includes banks flip angle control unit, banks translation distance control unit and banks lift mobile control unit, banks flip angle control unit is articulated with the truss, banks translation distance control unit sliding connection banks flip angle control unit, banks lift mobile control unit connects banks translation distance control unit lower extreme, banks connection banks lift mobile control unit bottom.
Preferably, the lamp set overturning angle control unit comprises an overturning telescopic cylinder and an angle bracket with a sliding rail arranged on the inner side, wherein the cylinder body end of the overturning telescopic cylinder is hinged with the upper end of the truss, the rod body end of the overturning telescopic cylinder is hinged with one end of the angle bracket, and the other end of the angle bracket is connected with the lower end of the truss through a hinge piece.
Preferably, an inclination sensor is further disposed on a side wall of the angle bracket.
Preferably, the lamp group translation distance control unit comprises a translation telescopic cylinder and a distance bracket, rolling bearings matched with the sliding rails are arranged on the outer sides of two ends of the distance bracket, the distance bracket is connected with an angle bracket through the rolling bearings, the cylinder body end of the translation telescopic cylinder is hinged with the angle bracket, and the rod body end of the translation telescopic cylinder is hinged with the distance bracket.
Preferably, the lamp set lifting movement control unit comprises a lifting bracket and a lifting telescopic cylinder for controlling the movement of the lifting bracket, and the lifting bracket is connected with the lower end of the distance bracket.
Preferably, the lifting support is a scissor type lifting support, a cross rod is arranged on the lifting support, and the head end and the tail end of the lifting telescopic cylinder are fixedly connected with the cross rod.
Preferably, the lower end of the lamp set lifting and moving control unit further comprises a chassis, and the lamp set is connected with the bottom of the chassis.
Preferably, the chassis center is also provided with an infrared thermal imaging system.
Preferably, the truss further comprises a rotary support assembly, a top plate is arranged at the top end of the truss, and the rotary support assembly is fixedly connected with the top plate.
Preferably, the aforementioned slewing bearing assembly includes a slewing bearing and a power input unit driving the slewing bearing to revolve, the slewing bearing is of a worm-and-worm type structure, and the power input unit is an electric motor.
Preferably, the aforementioned lamp set comprises a plurality of independently controlled full spectrum lamps arranged in a rectangular pattern.
The control method of the adjustable sunlight simulation test comprises the following specific steps:
placing a test sample at a test position, controlling a rotary supporting component to perform rotary motion by a control system, and adjusting the arrangement condition of the whole device according to test requirements;
according to the illumination radiation intensity spectrum collected in the environmental laboratory, the control system adjusts the illumination intensity of the lamp group and the input rate of the lamp group;
according to the test requirement, the control system receives the signals of the inclination sensor, controls the overturning telescopic cylinder to act, and adjusts the angle bracket to the corresponding position;
according to the size parameters of the sample machine, the control system adjusts different telescopic amounts of the translational telescopic cylinders in two different directions, controls the translational telescopic cylinders to act, adjusts the telescopic amount of the distance bracket, and enables the illumination radiation range to cover the test sample machine;
the control system controls the lifting telescopic cylinder to act, adjusts the lifting bracket to lift, and determines the lifting amount according to the test requirement;
and according to the real-time feedback of the infrared thermal imaging system, the irradiation surface of the lamp set is monitored and adjusted in real time.
Preferably, the method for adjusting the arrangement condition of the whole device according to the test requirement comprises the following steps: if the sample is a single sample, the sample is arranged at the central part of the environmental test cabin lamp group; if the test lamp is multiple samples, the test lamp group is distributed according to the number of the samples.
The invention has the beneficial effects that:
1. a plurality of multi-dimensional movable lamp bracket groups are arranged, so that the control experiment requirements of multiple samples can be met;
2. each multi-dimensional movable lamp bracket group can realize the adjustment of the lamp in space in multiple dimensions, and meets the use requirements of different test prototypes and multiple solar radiation working conditions;
3. the control system is adopted for overall control, and the working efficiency and the structural reliability are high.
4. The solar energy loading device is simple and compact in structure, and can meet the requirement of carrying out solar energy loading in environmental tests on multiple groups of complete machines and components simultaneously in the environmental tests.
Drawings
FIG. 1 is a general block diagram of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a multi-dimensional movable light fixture set of the present invention;
FIG. 5 is a lamp set flip translation control unit of the present invention;
FIG. 6 is a lamp set flip angle control unit of the present invention;
FIG. 7 is a lamp set translation distance control unit of the present invention;
fig. 8 is a view showing a lamp set up-down movement control unit according to the present invention.
Meaning of reference numerals in the drawings: 1-truss; 2-overturning the telescopic cylinder; 3-translating the telescopic cylinder; 4-distance bracket; 5-angle brackets; 6-lifting a telescopic cylinder; 7-lifting brackets; 8-lamp group; 9-slewing support; 10-power input unit.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
The embodiment discloses an adjustable sunshine simulation test device. As can be seen in fig. 1, 2 and 3, the overall structure frame of the device comprises a truss 1, a rotary support assembly and a multi-dimensional movable lamp bracket set. The truss 1 structure is H shaped steel truss, and truss 1 top is equipped with the roof, and gyration supporting component bottom surface passes through roof fixed connection truss 1, and gyration supporting component top is connected with environmental laboratory top fixing device to fix whole test device in suitable position. The rotary support assembly comprises a rotary support 9 and a power input unit 10, wherein the rotary support is in a worm-and-wheel type rotary support, the power input unit is an electric motor, and the electric motor drives the rotary support, so that the integral frame is driven to rotate at any angle. As can be seen from fig. 4, the multi-dimensional movable lamp holders are arranged in a circumferential array along the center of the truss 1, each multi-dimensional movable lamp holder includes a lamp set turning and translation control unit and a lamp set lifting and moving control unit, and in combination with fig. 5, the lamp set turning and translation control unit includes a lamp set turning angle control unit and a lamp set translation distance control unit. When the environment test is carried out on multiple products at the same time, corresponding number of multi-dimensional movable lamp bracket groups can be distributed to each product according to actual requirements.
Fig. 6 shows a lamp set turning angle control unit in this embodiment, the cylinder body end of the turning telescopic cylinder 2 is hinged at the upper end of the truss 1, the rod body end of the turning telescopic cylinder 2 is connected with the angle bracket 5 through a hinge, the other end of the angle bracket 5 is hinged with the lower end of the truss 1 through a hinge, and the turning telescopic cylinder 2 controls the angle adjustment of the angle bracket so as to realize horizontal illumination or illumination forming a certain angle with the horizontal plane. As can be seen from fig. 7, the inner side of the angle bracket 5 is further provided with a sliding rail, and a rolling bearing is designed at the outer side of the distance bracket 4, and the sliding rail is matched with the inner side sliding rail of the angle bracket 5 to realize the extension and retraction of the distance bracket 4. And an inclination sensor is further installed on the side wall of the angle bracket 5 and used for measuring the inclination angle of the angle bracket 5 in real time. The cylinder body end of the translation telescopic cylinder 3 is hinged with the angle bracket 5, the rod body end of the translation telescopic cylinder 3 is hinged with the distance bracket 4, and the translation telescopic cylinder 3 controls the distance bracket 4 to stretch and retract along the sliding track.
As can be seen from fig. 1 and 8, a lifting bracket 7 is fixed on the distance bracket 4, the lifting bracket 7 is a scissor type lifting bracket, a cross rod is arranged on the lifting bracket 7, and the head end and the tail end of the lifting telescopic cylinder 6 are fixed on the cross rod. The middle hinge of the scissor type lifting support is pushed by the lifting telescopic cylinder, so that the vertical position of the scissor type lifting support is adjusted. The lower end of the lifting bracket 7 is also fixed with a chassis, the shape of which can be changed, and is not limited to the existing specification. An infrared thermal imaging system is designed at the center of the chassis to monitor the irradiation surface of the lamp set in real time, so that on one hand, the temperature uniformity of the irradiation surface can be judged, and on the other hand, the temperature distribution condition of the irradiation surface is monitored to prevent the occurrence of danger caused by local overhigh temperature. The bottom of the chassis is fixed with a lamp group 8 which is composed of full spectrum lamps arranged in a rectangular shape, and the illumination intensity of each row/line of lamps can be controlled independently.
Further, the device is also provided with a control system for controlling the actions of the power input unit 10 and all the telescopic cylinders. For each multi-dimensional movable lamp bracket group, the overturning telescopic cylinder, the translation telescopic cylinder and the lifting telescopic cylinder can be linked or independently controlled through a control system, the control mode is flexible, and the control mode can be selected according to test requirements. The overturning telescopic cylinder, the translation telescopic cylinder and the lifting telescopic cylinder can be any one of an electric cylinder, a hydraulic cylinder or an air cylinder.
Based on the sunlight simulation test device, the invention also relates to a test control method, which comprises the following steps:
1. the test sample is placed at the center of the lower part of the lamp set of the environment test cabin, the control system controls the rotary support assembly to perform rotary motion, and the arrangement condition of the whole device is adjusted according to test requirements; for a single sample, the test sample is placed at the central part of the lower part of the lamp group of the environment test cabin, the lamp group can be in a dispersed symmetrical mode, the test sample at the focusing center can be irradiated, and the lamp group can be combined into a large-area lamp group for irradiation; for multiple samples, distributing test lamp groups according to the number of the samples, if four samples are used, distributing one movable lamp bracket group to correspond to one sample, wherein each sample is positioned at the irradiation center of the lamp group;
2. according to the illumination radiation intensity spectrum collected in the environmental laboratory, the control system adjusts the illumination intensity change of the lamp group and the input rate of the lamp group;
3. according to feedback of the inclination sensor, the control system controls the overturning telescopic cylinder 2 to act, and adjusts the rotation angle of the angle bracket 5 until the requirement of the light irradiation angle is met, so that the adjustment of the light irradiation angle is realized;
4. according to the size parameters of the sample, the control system adjusts different telescopic amounts of the translational telescopic cylinder 3 in two different directions, controls the translational telescopic cylinder 3 to act, adjusts the telescopic amount of the distance bracket 4, and enables the irradiation range of illumination to cover the test sample;
5. the control system controls the lifting telescopic cylinder 6 to act, adjusts the lifting bracket 7 to lift, and determines the lifting amount according to the test requirement;
6. according to the real-time feedback of the infrared thermal imaging system, the irradiation surface of the lamp set is monitored and adjusted in real time;
7. and (3) adjusting corresponding steps according to the actual conditions of the site, and loading the sunlight simulation working conditions in the test process.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (9)
1. The adjustable sunlight simulation test device is characterized by comprising a truss (1), a lamp group (8), a rotary support assembly and multi-dimensional movable lamp bracket groups uniformly distributed along the circumference of the center of the truss (1), wherein the multi-dimensional movable lamp bracket groups comprise a lamp group overturning angle control unit, a lamp group translation distance control unit and a lamp group lifting movement control unit, the lamp group overturning angle control unit is hinged with the truss (1), the lamp group translation distance control unit is in sliding connection with the lamp group overturning angle control unit, the lamp group lifting movement control unit is connected with the lower end of the lamp group translation distance control unit, the lamp group (8) is connected with the bottom of the lamp group lifting movement control unit, a top plate is further arranged at the top end of the truss (1), the rotary support assembly is fixedly connected with the top plate,
the lamp set overturning angle control unit comprises an overturning telescopic cylinder (2) and an angle bracket (5) with a sliding track arranged on the inner side, wherein the cylinder body end of the overturning telescopic cylinder (2) is hinged with the upper end of the truss (1), the rod body end of the overturning telescopic cylinder (2) is hinged with one end of the angle bracket (5), and the other end of the angle bracket (5) is connected with the lower end of the truss (1) through a hinge piece;
the lamp group translation distance control unit comprises a translation telescopic cylinder (3) and a distance bracket (4), rolling bearings matched with sliding tracks are arranged on the outer sides of two ends of the distance bracket (4), the distance bracket (4) is connected with an angle bracket (5) through the rolling bearings, the cylinder body end of the translation telescopic cylinder (3) is hinged with the angle bracket (5), and the rod body end of the translation telescopic cylinder (3) is hinged with the distance bracket (4);
the lamp set lifting movement control unit comprises a lifting support (7) and a lifting telescopic cylinder (6) for controlling the lifting support (7) to move, and the lifting support (7) is connected with the lower end of the distance support (4).
2. An adjustable sunlight simulation test apparatus according to claim 1, wherein the side wall of the angle bracket (5) is further provided with an inclination sensor.
3. The adjustable sunlight simulation test device according to claim 1, wherein the lifting support (7) is a scissor type lifting support, a cross rod is arranged on the lifting support (7), and the two ends of the head and the tail of the lifting telescopic cylinder (6) are fixedly connected with the cross rod.
4. An adjustable sunlight simulation test apparatus according to claim 1, wherein the lower end of the lamp set lifting movement control unit further comprises a chassis, and the lamp set (8) is connected to the bottom of the chassis.
5. The adjustable solar simulation test device according to claim 4, wherein the chassis center is further provided with an infrared thermal imaging system.
6. An adjustable solar simulation test device according to claim 1, characterized in that the swivel support assembly comprises a swivel support (9) and a power input unit (10) driving the swivel support (9) to swivel, the swivel support (9) being of a worm-and-wheel type structure, the power input unit (10) being an electric motor.
7. An adjustable solar simulation test device according to claim 1, characterized in that the lamp set (8) comprises a plurality of individually controlled full spectrum lamps arranged in a rectangular pattern.
8. A control method for an adjustable sunlight simulation test, characterized in that the adjustable sunlight simulation test device according to any one of claims 1 to 7 is applied, comprising the specific steps of:
placing a test sample at a test position, controlling a rotary supporting component to perform rotary motion by a control system, and adjusting the arrangement condition of the whole device according to test requirements;
according to the illumination radiation intensity spectrum collected in the environmental laboratory, the control system adjusts the illumination intensity of the lamp group and the input rate of the lamp group;
according to the test requirement, the control system receives the signal of the inclination sensor, controls the overturning telescopic cylinder (2) to act, adjusts the angle bracket (5) to a corresponding position, and the rod body end of the overturning telescopic cylinder (2) is hinged with one end of the angle bracket (5);
according to the size parameters of the sample machine, the control system adjusts different telescopic amounts of the translational telescopic cylinders (3) in two different directions, controls the translational telescopic cylinders (3) to act, adjusts the telescopic amount of the distance bracket (4) to enable the illumination radiation range to cover the test sample machine, and the rod body end of the translational telescopic cylinders (3) is hinged with the distance bracket (4);
the control system controls the lifting telescopic cylinder (6) to act, the lifting bracket (7) is adjusted to lift, the lifting amount is determined according to the test requirement, and the head end and the tail end of the lifting telescopic cylinder (6) are fixedly connected to the lifting bracket (7);
and according to the real-time feedback of the infrared thermal imaging system, the irradiation surface of the lamp set is monitored and adjusted in real time.
9. The method for controlling an adjustable solar simulation test according to claim 8, wherein the method for adjusting the arrangement condition of the whole device according to the test requirement comprises the following steps:
if the sample is a single sample, the sample is arranged at the central part of the environmental test cabin lamp group; if the test lamp is multiple samples, the test lamp group is distributed according to the number of the samples.
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| CN113933235B (en) * | 2021-12-16 | 2022-02-25 | 中国飞机强度研究所 | Method for measuring temperature of aircraft skin in solar radiation simulation test |
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