CN217765468U - Light source uniformity testing device - Google Patents
Light source uniformity testing device Download PDFInfo
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- CN217765468U CN217765468U CN202221849604.XU CN202221849604U CN217765468U CN 217765468 U CN217765468 U CN 217765468U CN 202221849604 U CN202221849604 U CN 202221849604U CN 217765468 U CN217765468 U CN 217765468U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a light source degree of consistency testing arrangement, include: the solar simulator is used for providing the illumination condition required by the test; the sunlight simulator is arranged on the fixed frame; the uniformity testing unit comprises a lifting mechanism and a photoelectric conversion mechanism, the photoelectric conversion mechanism is used for receiving illumination provided by the solar simulator and converting received optical signals into electric signals, and the photoelectric conversion mechanism can be driven by the lifting mechanism to be close to or far away from the solar simulator; the electric signal acquisition unit is connected with the photoelectric conversion mechanism and is used for measuring an electric signal of the photoelectric conversion mechanism; the upper computer is connected with the electric signal acquisition unit and at least used for analyzing and processing the electric signals. The embodiment of the utility model provides a pair of light source degree of consistency testing arrangement can adjust the distance between sunlight simulator and the degree of consistency test unit, can reduce the influence to the test result, improves the accuracy of test result.
Description
Technical Field
The utility model relates to a testing arrangement, in particular to light source degree of consistency testing arrangement belongs to light source test technical field.
Background
In the stability test of the photovoltaic cell, a simulated solar simulator is needed. In the testing process, certain requirements are made on the uniformity of the solar simulator, so that the device is tested under the same illumination intensity, and accurate device service life testing data are guaranteed to be obtained.
Generally, a photodiode is required to be used for testing the uniformity of the solar simulator, a plurality of test points are divided at a light outlet of the solar simulator, and the photodiode is used for individually testing the light intensity of the test points. Although the method can obtain the data of the illumination intensity of the solar simulator, the method is complicated, and the illumination intensity is influenced by various factors such as the distribution of test points, the placement direction of the photodiode, the distance from the surface of the diode to a lamp panel of the solar simulator and the like, and the factors can influence the test result of the illumination intensity of the solar simulator. Inaccurate data may be obtained by this method, so that the uniformity of the solar simulator is affected, thereby affecting the life test result of the device.
Therefore, in the process of testing the uniformity of the solar simulator, a uniformity testing unit capable of stably testing and unifying the photoelectric conversion efficiency is required to be used for testing the illumination intensity of the solar simulator.
SUMMERY OF THE UTILITY MODEL
A primary object of the utility model is to provide a light source degree of consistency testing arrangement for when solving the test sunlight simulator degree of consistency, it is single to detect the sample and causes the unsafe problem of testing result.
In order to realize the purpose of the utility model, the utility model adopts the technical scheme that includes:
the embodiment of the utility model provides a light source degree of consistency testing arrangement, include:
the sunlight simulator is used for providing illumination conditions required by the test;
the fixing frame is provided with a test space, and the sunlight simulator is arranged on the fixing frame and is positioned outside the test space;
the uniformity testing unit comprises a lifting mechanism and a photoelectric conversion mechanism, the lifting mechanism and the photoelectric conversion mechanism are arranged in the testing space, the photoelectric conversion mechanism is used for receiving illumination provided by the solar simulator and converting received optical signals into electric signals, and the photoelectric conversion mechanism is arranged on the lifting mechanism and can be driven by the lifting mechanism to be close to or far away from the solar simulator;
the electric signal acquisition unit is connected with the photoelectric conversion mechanism and is used for measuring the electric signal of the photoelectric conversion mechanism;
and the upper computer is connected with the electric signal acquisition unit and at least used for analyzing and processing the electric signals.
Compared with the prior art, the utility model has the advantages that: the embodiment of the utility model provides a pair of light source degree of consistency testing arrangement can adjust distance and position between sunlight simulator and the degree of consistency test unit not only can carry out the multiunit test and carry out contrast test, can also reduce the influence to the test result, improve the accuracy of test result.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a device for testing uniformity of a light source according to an exemplary embodiment of the present invention;
FIG. 2 is a bottom schematic view of a solar simulator in accordance with an exemplary embodiment of the present invention;
fig. 3 is a schematic diagram of a solar simulator according to an exemplary embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fixing frame according to an exemplary embodiment of the present invention;
FIG. 5 is a schematic diagram of a photoelectric conversion mechanism according to an exemplary embodiment of the present invention;
description of the reference numerals:
1. a solar simulator; 11. installing a box; 111. a mounting frame; 112. mounting a plate; 113. mounting grooves; 122. a lamp panel; 123. a heat dissipation plate; 124. heat dissipation fins; 13. a heat-dissipating fan; 14. a light homogenizing assembly;
2. a fixed mount; 21. a frame body; 22. a cover plate; 23. a base plate;
3. a uniformity testing unit; 31. a lifting mechanism; 32. a photoelectric conversion mechanism; 321. testing the circuit board; 322. a photodiode;
4. an electric signal acquisition unit;
5. and an upper computer.
Detailed Description
In view of the deficiencies in the prior art, the inventor of the present invention has made extensive studies and practice to provide the technical solution of the present invention. The technical solution, its implementation and principles, etc. will be further explained as follows.
The embodiment of the utility model provides a light source degree of consistency testing arrangement, a serial communication port, include:
the sunlight simulator is used for providing illumination conditions required by the test;
the fixing frame is provided with a test space, and the sunlight simulator is arranged on the fixing frame and is positioned outside the test space;
the uniformity testing unit comprises a lifting mechanism and a photoelectric conversion mechanism, the lifting mechanism and the photoelectric conversion mechanism are arranged in the testing space, the photoelectric conversion mechanism is used for receiving illumination provided by the sunlight simulator and converting received light signals into electric signals, and the photoelectric conversion mechanism is arranged on the lifting mechanism and can be driven by the lifting mechanism to be close to or far away from the sunlight simulator;
the electric signal acquisition unit is connected with the photoelectric conversion mechanism and is used for measuring the electric signal of the photoelectric conversion mechanism;
and the upper computer is connected with the electric signal acquisition unit and at least used for analyzing and processing the electric signals.
In some more specific embodiments, the solar simulator includes a mounting box having a first chamber and a first opening in communication with the first chamber, and a light source assembly disposed in the first chamber, the light source assembly irradiating the uniformity testing unit through the first opening.
In some more specific embodiments, the mount includes support body, apron and bottom plate, the inside of mount is formed with the test space, the upper and lower both sides of support body are provided with apron and bottom plate respectively, still be provided with the second opening on the apron, test space, second opening and first opening communicate in proper order.
In some more specific embodiments, the light source assembly includes a plurality of LED beads of different wavebands, and the plurality of LED beads are connected in series and/or in parallel.
In some specific embodiments, the light source assembly further comprises a lamp panel and a heat dissipation plate, the LED lamp beads are fixedly arranged on the lamp panel, and the heat dissipation plate is fixedly arranged on the lamp panel and is in heat conduction connection with the lamp panel.
In some specific embodiments, a plurality of heat dissipation fins are fixedly disposed on the heat dissipation plate, and the plurality of heat dissipation fins extend along a predetermined direction.
In some more specific embodiments, the mounting box includes a mounting bracket and a mounting plate, the mounting bracket is coupled to the mounting plate and forms the first chamber.
In some specific embodiments, the mounting frame is provided with a mounting groove, and the heat dissipation plate is matched with the mounting groove and can be detachably embedded into the mounting groove.
In some specific embodiments, the mounting plate is provided with heat dissipation holes, and at least some of the heat dissipation holes are provided with heat dissipation fans.
In some specific embodiments, the apparatus for testing uniformity of a light source further comprises a light-homogenizing assembly disposed between the light source assembly and the first opening for uniformly mixing the light emitted from the light source assembly.
In the following, the technical solution, the implementation process and the principle thereof will be further explained with reference to the drawings and the specific embodiments, unless otherwise specified, all of the lamp panel, the LED lamp bead, the lamp panel, the lifting mechanism, the test circuit board, the photodiode, the light homogenizing assembly and the like used in the embodiments of the present invention are known to those skilled in the art, and all of them can be obtained commercially, and the specific structure and model thereof are not limited herein.
Referring to fig. 1-5, an apparatus for testing uniformity of a light source includes:
the solar simulator 1 is used for providing illumination conditions required by the test;
the fixed frame 2 is provided with a test space, and the sunlight simulator 1 is arranged on the fixed frame 2 and is positioned outside the test space;
the uniformity testing unit 3 comprises a lifting mechanism 31 and a photoelectric conversion mechanism 32, the lifting mechanism 31 and the photoelectric conversion mechanism 32 are arranged in the testing space, the photoelectric conversion mechanism 32 is used for receiving the illumination provided by the solar simulator 1, the photoelectric conversion mechanism 32 can convert the received optical signal into an electrical signal, and the photoelectric conversion mechanism 32 is arranged on the lifting mechanism 31 and can be driven by the lifting mechanism 31 to approach or separate from the solar simulator 1;
the electric signal acquisition unit 4 is connected with the photoelectric conversion mechanism 32 and is used for measuring the electric signal of the photoelectric conversion mechanism 32;
and the upper computer 5 is connected with the electric signal acquisition unit 4 and at least used for analyzing and processing the electric signals.
Understandably, when the device is used, the solar simulator 1 can simulate sunlight, the solar simulator 1 is opened, after the solar simulator 1 runs to obtain a stable light source, the photoelectric conversion mechanism 32 is irradiated by the solar simulator 1, light emitted by the solar simulator 1 is received by the photoelectric conversion mechanism 32, and the photoelectric conversion mechanism 32 converts an optical signal into an electrical signal and outputs the electrical signal to the electrical signal acquisition unit 4. The electric signal acquisition unit 4 receives and processes the electric signal to obtain data of the uniformity of the light source. Referring to fig. 31, the lifting mechanism 31 can adjust the distance between the photoelectric converter and the light source assembly in the vertical direction, and lock the photoelectric converter and the light source assembly in the adjusted state. Therefore, a plurality of groups of test samples can be carried out, more test data can be obtained, the test error is reduced, and the test accuracy is improved.
Further, the solar simulator 1 comprises a mounting box 11 and a light source assembly, wherein the mounting box 11 is provided with a first chamber and a first opening communicated with the first chamber, the light source assembly is arranged in the first chamber, and the light source assembly irradiates the uniformity testing unit 3 through the first opening. The light source assembly is arranged in the first cavity and irradiates the photoelectric conversion mechanism 32 through the first opening, so that the light of the light source assembly is prevented from being scattered outwards to influence a test result.
Specifically, mount 2 includes support body 21, apron 22 and bottom plate 23, the inside of mount 2 is formed with the test space, the upper and lower both sides of support body 21 are provided with apron 22 and bottom plate 23 respectively, still be provided with the second opening on the apron 22, test space, second opening and first opening communicate in proper order. The second opening is further provided with quartz glass, and the quartz glass can be embedded and connected with the cover plate 22. The light radiated from the light source assembly can irradiate the photoelectric conversion mechanism 32 through the quartz glass, and the light is prevented from being scattered outward.
Further, the light source component comprises a plurality of LED lamp beads with different wave bands, and the LED lamp beads are connected in series and/or in parallel. The LED lamp beads are lamp beads with different wave bands, and are distributed regularly, such as evenly distributed at equal intervals.
Furthermore, the light source assembly further includes a lamp panel 122 and a heat dissipation plate 123, the LED lamp bead is fixedly disposed on the lamp panel 122, and the heat dissipation plate 123 is fixedly disposed with the lamp panel 122 and is in heat conduction connection with the lamp panel 122. Referring to fig. 2 to 3, the LED lamp beads are uniformly arranged or welded on the lamp panel 122 at the same intervals, and the other side of the lamp panel 122 is attached to the heat dissipation plate 123 to conduct heat to the heat dissipation plate 123 and dissipate heat through the heat dissipation plate 123. The heating panel 123 is lamp plate 122 provides the heat dissipation, prevents that lamp plate 122 high temperature to the life-span decay of LED lamp pearl is too fast, influences the accuracy of test.
Specifically, the lamp panel 122 and the heat sink are provided with a heat conducting pad therebetween. For example, the heat conducting pad is silicone grease, and the heat conducting silicone grease is smeared between the lamp panel 122 and the heat sink to improve the heat conducting efficiency.
Furthermore, a plurality of heat dissipation fins 124 are fixedly disposed on the heat dissipation plate 123, and the plurality of heat dissipation fins 124 extend in a predetermined direction. Referring to fig. 2, the heat dissipation plate 123 is provided with the heat dissipation fins 124 on a side away from the lamp panel 122, the heat dissipation fins 124 are arranged in a direction perpendicular to the heat dissipation plate 123, the heat dissipation plate 123 conducts the heat of the lamp panel 122 to the heat dissipation fins 124, the contact area between the heat dissipation fins 124 and the air is large, the heat dissipation efficiency is improved, and a better heat dissipation effect is further provided for the lamp panel 122.
Furthermore, the mounting box 11 includes a mounting frame 111 and a mounting plate 112, wherein the mounting frame 111 is connected to the mounting plate 112 in a fitting manner and forms the first chamber. It can be understood that the mounting bracket 111 is disposed along the vertical direction and/or the horizontal direction of the solar simulator 1 for supporting the solar simulator 1, and the mounting plate 112 is coupled with the mounting bracket 111 and encloses the first chamber, so as to facilitate assembly and disassembly and to fix the light source assembly and the heat dissipation plate 123.
Further, the mounting bracket 111 is provided with a mounting groove 113, and the heat dissipation plate 123 is matched with the mounting groove 113 and can be detachably inserted into the mounting groove 113. The heat dissipation plate 123 is easily mounted and dismounted.
Specifically, the heat dissipation plate 123 is fixedly connected to the lamp panel 122, and the heat dissipation plate 123 is fixedly connected to the mounting bracket 111. After the heat dissipation plate 123 is fixedly connected with the lamp panel 122, the heat dissipation plate 123 is connected with the mounting frame 111, so that workload is reduced. Meanwhile, when the lamp panel 122 is to be maintained, the lamp panel 122 can be directly detached from the heat dissipation plate 123 for maintenance, which facilitates the maintenance work.
Furthermore, the mounting plate 112 is provided with heat dissipation holes, and at least some of the heat dissipation holes are provided with heat dissipation fans 13. The heat dissipation holes are communicated with the inside and the outside environment of the solar simulator 1, and are used for dissipating heat in the inside environment of the solar simulator 1 to the outside of the solar simulator 1 so as to reduce the temperature of the inside environment. A heat radiation fan 13 is further provided at the heat radiation hole, and the heat radiation fan 13 discharges the temperature of the internal environment to the external environment to accelerate the decrease of the temperature of the internal environment.
Furthermore, the light source uniformity testing device further comprises a light homogenizing assembly 14, wherein the light homogenizing assembly 14 is arranged between the light source assembly and the first opening and used for uniformly mixing the light emitted by the light source assembly.
Specifically, the photoelectric conversion mechanism 32 includes a test box, a test circuit board 321, and a photodiode 322, the test box has a third cavity for accommodating the test circuit board 321, and the photodiode 322 is connected to the test circuit board 321.
Specifically, the collector is further connected with a processing mechanism. The processing mechanism is a computer, and the computer can acquire the current value of the photodiode 322 and form a current value information table. Different current values are represented by different colors, and a user can obtain the uniformity of the solar simulator 1 through the color difference condition.
The embodiment of the utility model provides a light source degree of consistency testing arrangement can adjust distance and position between sunlight simulator and the degree of consistency test unit not only can carry out the multiunit test and carry out contrast test, can also reduce the influence to the test result, improves the accuracy of test result.
It should be understood that the above-mentioned embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and therefore, the protection scope of the present invention should not be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A device for testing uniformity of a light source, comprising:
the solar simulator (1) is used for providing illumination conditions required by the test;
the fixing frame (2) is provided with a test space, and the sunlight simulator (1) is arranged on the fixing frame (2) and is positioned outside the test space;
the uniformity testing unit (3) comprises a lifting mechanism (31) and a photoelectric conversion mechanism (32), the lifting mechanism (31) and the photoelectric conversion mechanism are arranged in the testing space, the photoelectric conversion mechanism (32) is used for receiving illumination provided by the sunlight simulator (1), the photoelectric conversion mechanism (32) can convert received light signals into electric signals, and the photoelectric conversion mechanism (32) is arranged on the lifting mechanism (31) and can be driven by the lifting mechanism (31) to approach or move away from the sunlight simulator (1);
the electric signal acquisition unit (4) is connected with the photoelectric conversion mechanism (32) and is used for measuring the electric signal of the photoelectric conversion mechanism (32);
and the upper computer (5) is connected with the electric signal acquisition unit (4) and is at least used for analyzing and processing the electric signals.
2. The light source uniformity testing apparatus of claim 1, wherein said solar simulator (1) comprises a mounting box (11) and a light source assembly, said mounting box (11) having a first chamber and a first opening communicating with the first chamber, said light source assembly being disposed in said first chamber, said light source assembly irradiating said uniformity testing unit (3) through the first opening.
3. The light source uniformity testing device according to claim 2, wherein the fixing frame (2) comprises a frame body (21), a cover plate (22) and a bottom plate (23), the testing space is formed inside the fixing frame (2), the cover plate (22) and the bottom plate (23) are respectively arranged on the upper side and the lower side of the frame body (21), a second opening is further arranged on the cover plate (22), and the testing space, the second opening and the first opening are sequentially communicated.
4. The uniformity testing device of a light source according to claim 2, wherein the light source assembly comprises a plurality of LED beads with different wave bands, and the plurality of LED beads are connected in series and/or in parallel.
5. The light source uniformity testing device of claim 4, wherein the light source assembly further comprises a lamp panel (122) and a heat dissipation plate (123), the LED lamp beads are fixedly arranged on the lamp panel (122), and the heat dissipation plate (123) is fixedly arranged with the lamp panel (122) and is in heat conduction connection with the lamp panel (122).
6. The uniformity testing apparatus for a light source according to claim 5, wherein a plurality of heat dissipation fins (124) are fixedly disposed on the heat dissipation plate (123), and the plurality of heat dissipation fins (124) extend along a predetermined direction.
7. The uniformity testing apparatus for a light source according to claim 6, wherein said mounting box (11) comprises a mounting frame (111) and a mounting plate (112), said mounting frame (111) is coupled to said mounting plate (112) and forms said first chamber.
8. The uniformity testing apparatus for light source according to claim 7, wherein the mounting frame (111) is provided with a mounting groove (113), and the heat dissipation plate (123) is matched with the mounting groove (113) and can be detachably inserted into the mounting groove (113).
9. The apparatus for testing uniformity of a light source according to claim 8, wherein said mounting board (112) is provided with heat dissipation holes, and at least some of said heat dissipation holes are provided with heat dissipation fans (13).
10. The apparatus for testing the uniformity of a light source of claim 2, further comprising a light homogenizing assembly (14), wherein said light homogenizing assembly (14) is disposed between said light source assembly and said first opening for homogenizing the light emitted from said light source assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221849604.XU CN217765468U (en) | 2022-07-18 | 2022-07-18 | Light source uniformity testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221849604.XU CN217765468U (en) | 2022-07-18 | 2022-07-18 | Light source uniformity testing device |
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| Publication Number | Publication Date |
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| CN217765468U true CN217765468U (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221849604.XU Active CN217765468U (en) | 2022-07-18 | 2022-07-18 | Light source uniformity testing device |
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| CN (1) | CN217765468U (en) |
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- 2022-07-18 CN CN202221849604.XU patent/CN217765468U/en active Active
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