CN217654730U

CN217654730U - Synchronous solar simulator light intensity uniformity testing system

Info

Publication number: CN217654730U
Application number: CN202221508994.4U
Authority: CN
Inventors: 李育良; 徐文浩; 廖金利; 陆龙启
Original assignee: Suzhou Maiyue Intelligent Technology Co ltd
Current assignee: Suzhou Maiyue Intelligent Technology Co ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-10-25
Anticipated expiration: 2032-06-16

Abstract

The utility model provides a synchronous solar simulator light intensity homogeneity test system relates to solar energy technical field, can once only test a plurality of surveillance pieces to measure the homogeneity result, not only avoid the multiple metering's that sunlight analog device self correction system leads to difference, improve the accuracy of test, can also improve efficiency of software testing. The system comprises: sunlight simulation equipment, IV test equipment, a multi-channel data acquisition unit, processing equipment, a plane plate and an upper computer; the plane plate is provided with a plurality of small lattices, and each small lattice is internally provided with a monitoring sheet to be detected; each monitoring piece to be detected is connected with the multi-channel data collector through a channel, and the multi-channel data collector is connected with the processing equipment; the sunlight simulation equipment is connected with the IV test equipment; the IV testing equipment and the processing equipment are connected with the upper computer; the plane plate is arranged in the irradiation area of the sunlight simulation equipment.

Description

Synchronous solar simulator light intensity uniformity testing system

Technical Field

The utility model relates to a solar energy technical field especially relates to a synchronous solar simulator light intensity homogeneity test system.

Background

With the rapid development of Chinese economy and the progress of society, the photovoltaic industry in China gradually moves to the front of the world. The demand of equipment for producing silicon wafers is also increasing, and higher requirements are put forward on the accuracy of the equipment. Domestic equipment manufacturers put higher requirements on the uniformity of simulated sunlight in silicon wafer testing and classification.

Because a certain distance exists between the simulated sunlight component of the silicon wafer tester and the silicon wafer, when the simulated sunlight emitted by the solar simulator irradiates the silicon wafer, the light intensity received by the silicon wafer is inconsistent, and the final test result of the silicon wafer is influenced. Therefore, the test of the uniformity of the simulated sunlight gradually attracts the attention of various manufacturers.

Wherein, the uniformity test is as follows: the effective radiation surface of the solar simulator is equally divided into a plurality of test areas, equivalent electric signals corresponding to irradiance of each area are measured and presented by a multi-channel test instrument, and the uniformity result of the irradiance of the solar simulator is obtained through calculation according to data.

At present, the uniformity test generally equally divides a test area into a plurality of areas, and each small area is tested independently and individually, and because the simulated sunlight emitted by the solar simulator each time has a correction function, the light intensity of each emitted light cannot be guaranteed to be the same.

Accordingly, there is a need to develop a new synchronized solar simulator light intensity uniformity testing system to address the deficiencies of the prior art to solve or mitigate one or more of the problems set forth above.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a synchronous solar simulator light intensity homogeneity test system can once only test a plurality of surveillance pieces to measure the homogeneity result, not only avoid the multiple metering's that sunlight analog device self correction system leads to difference, improve the accuracy of test, can also improve efficiency of software testing.

The utility model provides a synchronous solar simulator light intensity homogeneity test system, the system includes: the device comprises sunlight simulation equipment, IV test equipment, a multi-channel data acquisition unit, processing equipment, a plane plate and an upper computer;

the plane plate is provided with a plurality of small lattices, and each small lattice is internally provided with a monitoring sheet to be detected;

each monitoring piece to be detected is connected with the multi-channel data collector through a channel, and the multi-channel data collector is connected with the processing equipment;

the sunlight simulation equipment is connected with the IV test equipment; the plane plate is arranged in an irradiation area of the sunlight simulation equipment;

the IV testing equipment and the processing equipment are connected with the upper computer.

The above aspect and any possible implementation manner further provide an implementation manner, wherein a plurality of small lattices are uniformly arranged on the plane plate, and the shape and the size of each small lattice are the same.

The above-mentioned aspect and any possible implementation manner further provide an implementation manner, where the setting manner of the cell is: and marking off the small lattices by setting scale marks on the plane plate.

The above aspect and any possible implementation manner further provide an implementation manner, wherein the arrangement manner of the cells is an 8 × 8 array arrangement.

The above aspects and any possible implementations further provide an implementation in which the sunlight simulation apparatus is a xenon lamp device.

The above aspects and any possible implementation further provide an implementation, and the system further includes a fixing device, wherein the fixing device fixes the solar simulation apparatus at the top and fixes the flat panel at the bottom.

There is further provided in accordance with the above-described aspect and any one of the possible implementations, an implementation in which the fixing device is a light box.

The above aspect and any possible implementation manner further provide an implementation manner, where the light box is a square through structure composed of a top wall, a bottom wall, a left wall and a right wall, and a test error caused by reflection of simulated sunlight in the closed box can be effectively avoided.

The above aspects and any possible implementation further provide an implementation manner that the shape and size of the emitting surface of the sunlight simulation device are the same as those of the plane plate, so as to ensure that the simulated sunlight irradiates on the plane plate perpendicularly as much as possible.

The above aspect and any possible implementation manner further provide an implementation manner, and the inner wall material of the lamp box is a weak reflection material, so that the illumination intensity irradiated onto the plane plate is ensured to be free from reflection light intensity as much as possible, and the test precision is improved.

Compared with the prior art, the utility model has the advantages of as follows or beneficial effect: the utility model provides a test system directly measures the uniformity result once through the simulated sunlight that the solar simulator sends, not only avoids the difference of multiple measurements that the correction system of solar simulator self leads to, improves the accuracy of test;

another technical scheme among the above-mentioned technical scheme has following advantage or beneficial effect: the test method is convenient and quick, and saves the labor cost and time of the test.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic top view of a plane plate with scale lines in a system for testing uniformity of a synchronously controlled solar simulator according to an embodiment of the present invention; averagely dividing the effective radiation surface into 64 areas, and placing a monitoring film to be detected in each area;

fig. 2 is a schematic view of a lamp box of a synchronously controlled solar simulator uniformity testing system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a system for testing uniformity of a synchronously controlled solar simulator according to an embodiment of the present invention;

fig. 4 is a test flowchart provided by an embodiment of the present invention.

Wherein, in the figure:

1. a flat plate; 2. a multi-channel data acquisition unit; 3. a processing device; 4. IV, testing equipment; 5. an upper computer; 6. a xenon lamp device;

2-1, a light emitting surface; 2-2, radiation surface.

Detailed Description

For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.

It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. "first", "second" and "third" are merely descriptive references made for distinction. It should also be understood that the term "and/or" as used herein is merely one type of associative relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In order to avoid the problem that in the prior art, the fine error of each time of light emission caused by a correction system of the solar simulator is measured for multiple times, the accuracy of the uniformity test result is improved. The utility model provides a synchronous solar simulator light intensity uniformity testing system, which comprises a solar simulator which can be used by normal lighting, an IV testing device, a plurality of monitoring pieces to be tested (the nature of the monitoring pieces is calibrated silicon chips), a multi-channel data acquisition device, a processing device, a plane board with scale marks drawn, and an upper computer;

fixing the plane plate with the scale marks in a region to be tested in the solar simulator luminous radiation surface;

arranging a plurality of monitoring sheets to be detected on a plane plate with scale marks;

connecting a plurality of monitoring sheets to be tested to a multi-channel data acquisition unit, so that the data acquisition unit can acquire data changes of all the monitoring sheets to be tested under the irradiation of simulated sunlight;

when the solar simulator emits simulated sunlight to irradiate the monitoring piece to be tested, the battery piece generates an electric signal, the electric signal is transmitted to the upper computer after being processed by the multi-channel data acquisition device, and the upper computer calculates a uniformity result according to the data.

Example 1:

the utility model relates to a simulation sunlight homogeneity that test solar simulator sent, as shown in figure 3, so need prepare one set of normally luminous sunlight analog system earlier, including xenon lamp device 6 and IV test equipment 4.

The flat panel 1 is divided into 64 cells, i.e. 64 effective radiation areas, by means of drawing scale lines, as shown in fig. 1, and a monitoring sheet to be tested is placed in each effective radiation area for testing.

The plane plate 1 with the scale marks is fixed in the area to be tested for simulating sunlight, namely the position of the radiation surface 2-2 of the lamp box 2 shown in figure 2. The whole lamp box 2 is a square box body, a xenon lamp device 6 is fixed at the position of a light emitting surface 2-1 at the top of the box body, and a radiation surface at the bottom is an effective test surface.

All to-be-detected monitoring sheets arranged on the plane board 1 are connected with a multi-channel data collector 2, and preferably, each to-be-detected monitoring sheet is connected with one channel. The multichannel data collector 2 is connected with the processing equipment 3, and the processing equipment 3 is connected with the upper computer 5. The multichannel data collector 2 is used for collecting data of each monitoring piece, the processing equipment 3 is used for processing the collected data of each monitoring piece to enable the data to meet the requirements of a communication protocol and the receiving requirements of an upper computer, then the data are transmitted to the upper computer 5 and are recorded and stored by the upper computer 5, and the uniformity of simulated sunlight is calculated.

The utility model discloses a test flow is as shown in figure 4, and its step includes:

s1, fixing a plane plate in a lamp box;

s2, placing the monitoring pieces to be tested in 64 cells, and electrically connecting all the monitoring pieces with a multi-channel data acquisition unit through corresponding channels;

s3, connection processing equipment

S4, electrifying the IV test equipment;

s5, starting a multi-channel data acquisition device and an upper computer;

s6, starting the IV test equipment to simulate the irradiation of sunlight;

and S7, receiving the test data and calculating a result by the upper computer.

The above description of the embodiments is only for the purpose of helping to understand the method of the present application and its core idea; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A synchronized solar simulator light intensity uniformity testing system, the system comprising: sunlight simulation equipment, IV test equipment, a multi-channel data acquisition unit, processing equipment, a plane plate and an upper computer;

the plane board is provided with a plurality of small lattices, and each small lattice is internally provided with a monitoring sheet to be detected;

2. The system for testing light intensity uniformity of a synchronous solar simulator according to claim 1, wherein a plurality of said cells are uniformly disposed on said flat panel, each of said cells having the same shape and size.

3. The system for testing light intensity uniformity of a synchronous solar simulator of claim 2, wherein the cells are arranged in a manner that: and marking out the small lattices by arranging scale marks on the plane plate.

4. The system according to claim 2, wherein the cells are arranged in an 8 x 8 array.

5. The synchronized solar simulator light intensity uniformity testing system of claim 1 wherein the solar light simulation device is a xenon lamp device.

6. The synchronized solar simulator light intensity uniformity testing system of claim 1 further comprising a fixture, wherein the top of the fixture holds the solar simulator device and the bottom holds the flat panel.

7. The synchronized solar simulator light intensity uniformity testing system of claim 6 wherein the fixture is a light box.

8. The synchronized solar simulator light intensity uniformity testing system of claim 7 wherein the light box is a square pass-through structure consisting of a top wall, a bottom wall, a left wall and a right wall.

9. The synchronized solar simulator light intensity uniformity testing system of claim 1 wherein the shape and size of the solar simulator emitting surface is the same as the planar sheet.

10. The system of claim 7, wherein the inner wall of the light box is made of a material with low reflectivity.