CN111211063B - Experimental device for be used for testing flexible solar cell photoelectric characteristic - Google Patents

Abstract

The invention discloses an experimental device for testing photoelectric characteristics of a flexible solar cell, and belongs to the technical field of photoelectric detection. The experimental device comprises a base, wherein a light source support and a battery piece support are arranged on the base, the light source support is used for installing a light source control module, the battery piece support is connected with a connecting platform through a rotating piece, a first telescopic rod is further arranged on the battery piece support and used for driving the connecting platform to rotate around the battery piece support, the connecting platform is used for connecting a fixing mechanism, a battery piece is fixed through at least two fixing mechanisms, and light generated by the light source control module irradiates the battery piece. The invention overcomes the defect that the test result is not accurate enough due to single state change in the flexible battery test in the prior art, and provides the experimental device which can realize the torsion and bending of the battery piece and fully simulate the photoelectric characteristic test of the battery piece under different stress states, so that the obtained test result is more accurate and comprehensive.

Description

An experimental device for testing the photoelectric characteristics of flexible solar cells

technical field

The invention belongs to the technical field of photoelectric detection, and more specifically relates to an experimental device for testing the photoelectric characteristics of flexible solar cells.

Background technique

With the development of photovoltaic technology, the application of photovoltaic power generation is becoming more and more extensive, and there are more and more types, from traditional photovoltaic power plants to photovoltaic building integration, to PV-LED and so on. The vast majority of these applications use rigid solar cells, such as crystalline silicon cells. In some occasions where rigid batteries are incapable, flexible solar cells are winning a place with their unique and flexible characteristics, playing an irreplaceable role in various outdoor and portable applications, especially in scientific research, military and other fields. The testing of solar cell chips is an important process in the production of solar modules, which is used to sort out qualified solar cell chips for solar modules. At this stage, silicon-based solar cell modules with hard substrates are still the mainstream in the market, so chip test platforms are also designed for silicon wafers with hard substrates. However, since the packaging method and the place of use of flexible batteries are different from those of silicon-based solar cells with hard substrates, it is impossible to use the existing solar battery testing equipment to directly test. Therefore, there is an urgent need for a flexible battery that can test the performance of flexible batteries. test device.

In view of the above problems, relevant technical solutions have been disclosed in the prior art, such as patent application number: 2018106238219, application date: June 15, 2018, and the name of the invention is: a solar cell testing device. The device includes: a test platform; a bottom electrode, fixed on the test platform; a top support, which can move up and down relative to the test platform; a top electrode, mounted on the top support, and its installation position is set to: When the back electrode of the solar cell chip on the test platform is in contact with the bottom electrode, it is vertically opposite to the front electrode of the solar cell chip. The above-mentioned solar cell testing device can be used to test the performance of a battery chip whose positive and negative electrodes are exposed on both sides, for example, it can be used to test the performance of a flexible copper-steel rubbed selenium solar cell chip, and its testing operation is simple and convenient.

Another example is the patent application number: 2013100560831, application date: February 22, 2013, and the name of the invention is: a flexible device mechanical performance testing device, which discloses a flexible organic light-emitting diode (FOLED), flexible solar energy Equipment for testing the mechanical properties of flexible devices such as batteries (FOPV) and flexible field-effect transistors (FTFT), specifically includes a fixed base plate, a control circuit part is fixed on one side of the fixed base plate, and a mechanical part is provided on the other side. The mechanical part includes a power device, a transmission device, a linear displacement device and two clamping parts. The power device, transmission device and linear displacement device are sequentially connected by transmission. The two clamping parts are connected by static The collet and the movable collet fixedly connected to the linear displacement device; the control circuit part is connected with the power device. The device can simulate the process of bending a substrate by hand, which is convenient for the testing of organic flexible devices.

Although the above-mentioned device can realize the bending of flexible cells, the cells can only be bent along the sliding direction, but the cells can only be bent along the sliding direction, which cannot fully simulate flexible cells. In actual use, the performance parameters obtained by testing the device are not accurate enough, so the device still needs further optimization and improvement.

Contents of the invention

1. The technical problem to be solved by the invention

The invention overcomes the inaccurate test results caused by the single state change of the flexible battery sheet in the prior art, and provides an experimental device. The battery sheet support is connected to the connection platform through a rotating part, and the first telescopic rod drives the connection platform to wrap around the battery. The rotation of the sheet bracket can realize the torsion and bending of the battery sheet, so as to fully simulate the photoelectric characteristic test of the battery sheet under different stress states, and the test results obtained are more accurate and comprehensive.

2. Technical solution

In order to achieve the above object, the technical scheme provided by the invention is:

An experimental device for testing the photoelectric characteristics of a flexible solar cell according to the present invention comprises a base on which a light source bracket and a cell bracket are arranged, the light source bracket is used for installing a light source control module, and the cell bracket is connected to a connection platform through a rotating member , the cell support is also provided with a first telescopic rod, the first telescopic rod is used to drive the connection platform to rotate around the cell support, the connection platform is used to connect the fixing mechanism, the battery is fixed by at least two fixing mechanisms, the light source control module The generated light is irradiated on the battery sheet.

As a further improvement of the present invention, the rotating part is a ball hinge mechanism, one end of the ball hinge mechanism is hinged to the cell support, and the other end of the ball hinge mechanism is connected to the connection platform through a ball hinge rod.

As a further improvement of the present invention, the rotating member includes a longitudinal rotation shaft through which the connection platform is connected to the cell support, and the first telescopic rod drives the connection platform to rotate around the longitudinal rotation shaft.

As a further improvement of the present invention, at least two second telescopic rods are provided on the connecting platform, the second telescopic rods are hinged to the fixing mechanism and driven to rotate laterally around the connecting platform, at least one of the second telescopic rods is connected to the connecting platform Fixed connection.

As a further improvement of the present invention, the fixing mechanism includes a supporting plate and a moving trolley arranged on the supporting plate, the supporting plate and the moving trolley are connected by an elastic member, and the moving trolley is used to fix the battery slices.

As a further improvement of the present invention, the bottom plate of the mobile trolley is provided with an elastic limiting column, and a corresponding groove is provided on the supporting plate, and the elastic limiting column is installed in the groove to limit the position of the mobile trolley.

As a further improvement of the present invention, a fastening link is provided on the side plate of the mobile trolley, and a positioning piece is installed on the fastening link, and the positioning piece is used to fix the battery sheet.

As a further improvement of the present invention, the elastic member is a spring dynamometer, one end of the spring dynamometer is connected to the side plate of the mobile trolley, and the other end is connected to the rope bolt set on the pallet through a rope.

As a further improvement of the present invention, the light source control module includes light source support rods, a suspension frame is provided between the light source support rods, and a suspension wire control mechanism for controlling the lifting of the light source assembly is provided in the suspension frame.

As a further improvement of the present invention, the suspension wire control mechanism includes a rotating base, on which a winding post is provided, on which a suspension wire for connecting the light source assembly is provided, and the rotating base is driven by a motor.

3. Beneficial effect

Compared with the prior art, the technical solution provided by the invention has the following remarkable effects:

(1) An experimental device for testing the photoelectric characteristics of flexible solar cells according to the present invention. The first telescopic rod rotates around the battery sheet support through the telescopic drive connection platform, which can realize the torsional bending of the battery sheet and better simulate the battery sheet. The stress state during use, through the photoelectric performance test of the cells under different stress states, to study the change law of the photoelectric performance when the internal material properties of the cell change, and to obtain more accurate and comprehensive test results.

(2) An experimental device for testing the photoelectric characteristics of a flexible solar cell of the present invention, the end of the cell is fixed by a mobile trolley, and the mobile trolley is fixed on the supporting plate by an elastic member. At this time, the fixed end of the cell is The mobile trolley can realize free displacement and be regarded as a free end. The elastic parts can buffer the torsional stress of the cells and prevent damage to photovoltaic modules due to improper strength. Especially when the stress changes suddenly, the elastic parts can be corrected and adjusted to a certain extent. to effective protection.

(3) An experimental device for testing the photoelectric characteristics of flexible solar cells of the present invention controls the position of the light source assembly in the horizontal direction and the vertical direction through a suspension control mechanism, so that the light source assembly forms a curved light source. By adjusting the light source The control module changes its light-receiving conditions, and tests the comparison of the photoelectric characteristics of the cells under different light-receiving conditions. It can also test the change of the photoelectric characteristics of the light-receiving surface when the internal mechanical properties change, so as to provide a reference for the application of flexible photovoltaic modules.

Description of drawings

Fig. 1 is a perspective view of an experimental device for testing the photoelectric characteristics of a flexible solar cell of the present invention;

Fig. 2 is a side view of an experimental device for testing the photoelectric characteristics of flexible solar cells of the present invention;

Fig. 3 is a schematic diagram of the connection between the cell support and the fixing mechanism in the present invention;

Fig. 4 is another schematic diagram of the connection between the cell support and the fixing mechanism in the present invention;

Fig. 5 is a top view of the connection between the cell support and the connection platform in the present invention;

Fig. 6 is the structural representation of fixing mechanism among the present invention;

Fig. 7 is a top view of the light source control module in the present invention;

Fig. 8 is a structural schematic diagram of the suspension wire control mechanism in the present invention;

Fig. 9 is a schematic diagram of the internal structure of the suspension frame in the present invention;

Fig. 10 is a bottom view of a light source assembly simulating a curved surface light source in the present invention.

Reference signs:

100. Base; 110. Fixed seat; 111. Connecting seat; 120. Cell support; 121. Rotating member; 122. First telescopic rod; 123. Connection platform; 124. Longitudinal rotation axis; 125. Second telescopic rod;

200. Light source support;

300, fixed mechanism; 310, supporting plate; 311, rope bolt; 312, rope; 313, spring dynamometer; 314, mobile trolley; 315, elastic limit column; 316, fastening connecting rod; 317, positioning piece ; 318, gasket; 319, battery sheet;

400, light source control module; 410, light source support rod; 411, transition rod; 412, installation collar; 420, suspension control mechanism; 421, winding post; 422, rotating base; 423, rotating shaft; 424, motor; 425, suspension wire; 426, suspension frame; 427, light source assembly; 428, control button.

Detailed ways

In order to further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings and embodiments.

Example 1

1, an experimental device for testing the photoelectric characteristics of flexible solar cells in this embodiment includes a base 100, and the base 100 includes fixed seats 110 and connecting seats 111 alternately arranged horizontally and vertically. Specifically, in this embodiment, the base 100 includes two fixing seats 110 and two connecting seats 111, the fixing seats 110 and the connecting seats 111 are arranged vertically and connected by sliding, and both the fixing seats 110 and the connecting seats 111 can be telescopically adjusted.

In this embodiment, a light source support 200 is provided on the fixing seat 110, and a cell support 120 is provided on the connection seat 111. The light source support 200 is used to install the light source control module 400. The cell support 120 is arranged in parallel with the light source support 200. The battery support 120 is connected to the connection platform 123 through the rotating member 121, and the first telescopic rod 122 is also provided on the cell support 120. The first telescopic rod 122 is used to drive the connection platform 123 to rotate around the cell support 120, and the connection platform 123 is used to connect and fix mechanism 300 , the battery sheet 319 is fixed by at least two fixing mechanisms 300 , and the light generated by the light source control module 400 is irradiated on the battery sheet 319 .

Further, in this embodiment, the rotating member 121 is a ball hinge mechanism, one end of the ball hinge mechanism is hinged to the cell support 120 , and the other end of the ball hinge mechanism is connected to the connection platform 123 through a ball hinge rod. The ball hinge mechanism in this embodiment has a large torsion angle and can flexibly bear pressure from different surfaces. Specifically, in this embodiment, at least two bases are provided on the side wall of the cell support 120, and a first telescopic rod 122 is installed in the base, and the first telescopic rod 122 is hinged to the bottom of the connecting platform 123 for supporting And adjust the connecting platform 123 . The two first telescopic rods 122 can be independently controlled and adjusted. The telescopic drive of the first telescopic rods 122 drives the connecting platform 123 to rotate around the ball hinge mechanism. The ends of the battery slices 319 are fixed by at least two fixing mechanisms 300 . The stress state of the battery sheet 319 changes with the rotation of the connecting platform 123 .

In this embodiment, the first telescopic rod 122 rotates around the ball hinge mechanism by telescopically driving the connection platform 123, which can realize operations such as twisting, bending and stretching the battery sheet 319, and can better simulate the impact of the battery sheet 319 during use. Stress state, through the photoelectric performance test of the battery sheet 319 under different stress states, the change rule of the photoelectric performance of the battery sheet 319 when the internal material characteristics of the battery sheet 319 changes is studied, and more accurate and comprehensive test results are obtained.

Example 2

A kind of experimental device for testing the photoelectric characteristics of the flexible solar cell of this embodiment, its structure is basically the same as that of Embodiment 1, the difference is that the rotating member 121 includes a longitudinal rotation shaft 124, and the connecting platform 123 is connected to the vertical rotation shaft 124 through the longitudinal rotation shaft 124. The cell support 120 is connected, and the first telescopic rod 122 drives the connection platform 123 to rotate around the longitudinal rotation axis 124 . Specifically, in this embodiment, one end of the longitudinal rotation shaft 124 is fixedly connected to the cell holder 120, and the other end is slidingly connected to the connection platform 123. The first telescopic rod 122 drives the connection platform 123 to rotate longitudinally around the longitudinal rotation shaft 124 through telescopic drive, thereby realizing battery life. The longitudinal bend of sheet 319.

Further, in this embodiment, at least two second telescopic rods 125 are provided on the connecting platform 123, and the second telescopic rods 125 are hinged to the fixing mechanism 300 and driven to rotate laterally around the connecting platform 123. The second telescopic rods 125 At least one is fixedly connected with the connection platform 123 . In this embodiment, the two second telescopic rods 125 can also be independently controlled and adjusted, and the fixing mechanism 300 is controlled to rotate laterally around the connecting platform 123 through the telescopic control of the second telescopic rod 125, and the battery piece 319 is horizontally folded along with the rotation of the fixing mechanism 300. bend.

In this embodiment, the battery slice 319 is arranged between at least two fixing mechanisms 300, and the longitudinal rotation of the connection platform 123 and the lateral rotation of the fixing mechanism 300 are respectively driven by the first telescopic rod 122 and the second telescopic rod 125, thereby realizing the battery slice. 319 to fully simulate the stress state of the battery sheet 319 in use. Further, in this embodiment, the connection platform 123 and the fixing mechanism 300 are equipped with an angle tester, which can read the rotation angle , to facilitate accurate measurement of the torsional curvature of the cell sheet 319 .

Using the experimental device of the present invention to test, the influence of the torsion angle on the photoelectric performance of the battery sheet 319 can be obtained, and because the stress state of the battery sheet 319 is fully simulated, the test results obtained are also more accurate, and can truly reflect the battery sheet 319. photoelectric properties.

Example 3

An experimental device for testing the photoelectric characteristics of a flexible solar cell in this embodiment, its structure is basically the same as in Embodiment 2, further, the fixing mechanism 300 in this embodiment includes a supporting plate 310 and a mobile trolley arranged on the supporting plate 310 314 , the supporting plate 310 is connected to the mobile trolley 314 through an elastic member, and the mobile trolley 314 is used to fix the battery sheet 319 .

Preferably, in the present embodiment, the bottom plate of the mobile trolley 314 is provided with an elastic limit post 315, and a corresponding groove is provided on the supporting plate 310, and the elastic limit post 315 is installed in the groove to limit the mobile trolley 314, preventing The mobile trolley 314 breaks away from the pallet 310 .

Specifically, in this embodiment, a fastening link 316 is provided on the side plate of the mobile trolley 314 , and a positioning member 317 is installed on the fastening link 316 , and the positioning member 317 is used to fix the battery sheet 319 . Preferably, in order to protect the battery sheet 319 and prevent the clamping end from being damaged when it is twisted, in this embodiment, gaskets are respectively provided between the positioning member 317 and the battery sheet 319, and between the bottom plate of the mobile trolley 314 and the battery sheet 319 318. The spacer 318 may be made of elastic material, such as rubber material.

In this embodiment, the supporting plate 310 and the mobile trolley 314 are connected by elastic members, and the two ends of the battery sheet 319 are fastened and clamped by the positioning members 317 provided on the mobile trolley 314, and the mobile trolley 314 is pulled by the elastic members. Stretching can effectively buffer the torsion and bending process of the battery sheet 319, and prevent damage to the battery sheet 319 when the stress state changes suddenly; in addition, in this embodiment, the rolling friction between the moving trolley 314 and the supporting plate 310 can be further reduced. The resistance suffered by the battery sheet 319 during the deformation process is beneficial to simulate different stress states of the battery sheet 319 during use.

In order to accurately simulate the use state of flexible photovoltaic modules, it needs to be twisted or bent. The twisting or bending process requires fine operation to prevent damage to photovoltaic modules due to improper strength. In this embodiment, the end of the battery sheet 319 is fixed by the mobile trolley 314, and the mobile trolley 314 is fixed on the supporting plate 310 through an elastic member. At the end, the elastic member can buffer the torsional stress of the battery slice 319 , especially when the stress changes abruptly, the elastic member can correct and adjust it to effectively protect the battery slice 319 .

Example 4

A kind of experimental device for testing the photoelectric characteristic of flexible solar cell of this embodiment, its structure is basically the same as embodiment 3, further, in this embodiment, the elastic member is spring dynamometer 313, and one end of spring dynamometer 313 is connected with The side plate of the mobile trolley 314 is connected, and the other end is connected with the rope bolt 311 provided on the supporting plate 310 through a rope 312. The spring dynamometer 313 in this embodiment can directly read the tensile force on the mobile trolley 314.

In this embodiment, the other end of the spring dynamometer 313 is connected to the supporting plate 310 through the rope 312, and the distance between the clamping ends of the battery sheet 319 and the distance between the fixing seat 110 and the connecting seat 111 can be adjusted by adjusting the rope 312 It can also be adjusted to suit battery slices 319 of different shapes or sizes, and the adjusting rope 312 can also fine-tune the force and twist of the battery slice 319 .

In this embodiment, before carrying out the photoelectric performance test, a battery sheet 319 in the same assembly can be tried first. When the battery sheet 319 is stretched or twisted to a certain extent, cracks appear, or the photoelectric characteristics are different from the normal measurement (when not twisted or bent) When compared with half of the attenuation, stop stretching or torsion at this time, record the elastic tension and torsion angle, and use it as the half-life critical point of the same type of component, and then continue to increase the tension or torsion angle, which is no longer suitable for components Work. Subsequent tests of similar components shall take this as a reference, and shall not exceed this critical point, or be appropriately lower than this critical point.

Example 5

An experimental device for testing the photoelectric characteristics of a flexible solar cell in this embodiment is basically the same in structure as in Embodiment 2. Further, the light source control module 400 in this embodiment includes a light source support rod 410, and between the light source support rods 410 A suspension frame 426 is provided, and a suspension wire control mechanism 420 is provided inside the suspension frame 426 , and the suspension wire control mechanism 420 is used to control the lifting of the light source assembly 427 .

In this embodiment, the light source support rod 410 is a hollow square tube with a sliding channel inside, in which the suspension frame 426 can slide to adjust the horizontal position of the light source assembly 427 at the bottom. The light source support rod 410 is connected with the installation collar 412 through the transition rod 411. The transition rod 411 is a solid metal rod with a diameter smaller than that of the light source support rod 410 to facilitate connection with the installation collar 412. The installation collar 412 is fixed on the light source bracket 200 .

In this embodiment, the light source assembly 427 is composed of (4-8 rows)×(12-24 columns) light-emitting unit arrays. It can be adjusted and changed. The inside of the hollow soft tendon wire is a copper wire with high conductivity. The number of rows and columns of the light source assembly 427 can be adjusted according to actual needs.

Specifically, in this embodiment, the wire suspension control mechanism 420 includes a rotating base 422, on which a winding post 421 is provided, on which a suspension wire 425 for connecting the light source assembly 427 is provided, and the rotating base 422 is driven by a motor 424 drives to rotate. The wire suspension control mechanism 420 can be controlled collectively, or can be adjusted individually through the independent adjustment control buttons 428 . The rotating base 422 is driven to rotate by the motor 424 so that the suspension wire 425 is wound or disengaged along the winding column 421 , thereby adjusting the position of the light source assembly 427 in the vertical direction.

In the prior art, the light source for testing photovoltaic characteristics is a planar light source, which is mainly aimed at rigid flat photovoltaic modules. When the flexible photovoltaic module receives light on the curved surface, its related photoelectric characteristics are different under the parallel light irradiation and the curved surface light irradiation. At this time, using a plane light source for photoelectric detection can no longer faithfully reflect the photoelectric characteristics of its curved surface.

In this embodiment, the position of the light source assembly 427 in the horizontal direction and the vertical direction is controlled by the suspension wire control mechanism 420, so that the light source assembly 427 forms a curved light source. Using the testing device of the present invention, the following three aspects of testing can be performed to obtain the comprehensive situation of the photoelectric characteristics of the battery sheet 319 .

(1) When the rotation angle and stretching force are constant, the volt-ampere characteristics and open circuit voltage and short-circuit current test corresponding to different light intensities; (2) When the rotation angle is changed and the stretching force is constant, the same light intensity Corresponding volt-ampere characteristics and open-circuit voltage, short-circuit current test; (3) When the tensile force is changed and the rotation angle is unchanged, the corresponding volt-ampere characteristics and open-circuit voltage and short-circuit current test of the same light intensity.

An experimental device for testing the photoelectric characteristics of flexible solar cells in this embodiment can change the light receiving conditions of the battery sheet 319 by bending or twisting the battery sheet 319 and adjusting the light source control module 400 to test the photoelectricity of the battery sheet 319 under different light receiving conditions. The comparison of characteristics can also test the change of photoelectric characteristics when the internal mechanical characteristics of the light-receiving surface change, so as to provide a reference for the application of flexible photovoltaic modules.

The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be described in the foregoing embodiments Modifications are made to the recorded technical solutions, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. An experimental device for testing the photoelectric characteristics of flexible solar cells, characterized in that: it comprises a base (100), the base (100) is provided with a light source support (200) and a cell support (120), the The light source bracket (200) is used to install the light source control module (400), the battery chip bracket (120) is connected to the connection platform (123) through the rotating part (121), and the battery chip bracket (120) is also equipped with a second A telescopic rod (122), the first telescopic rod (122) is used to drive the connection platform (123) to rotate around the battery sheet support (120), and the connection platform (123) is used to connect the fixing mechanism (300) , the battery sheet (319) is fixed by at least two fixing mechanisms (300), and the light generated by the light source control module (400) is irradiated on the battery sheet (319); The fixing mechanism (300) includes a supporting plate (310) and a mobile trolley (314) arranged on the supporting plate (310), and the supporting plate (310) is connected with the mobile trolley (314) by an elastic member. The mobile dolly (314) is used to fix the battery sheet (319); The bottom plate of the mobile trolley (314) is provided with an elastic limit post (315), and a corresponding groove is provided on the supporting plate (310), and the elastic limit post (315) is installed in the groove to Mobile dolly (314) carries out spacing. 2. A kind of experimental device for testing the photoelectric characteristics of flexible solar cells according to claim 1, characterized in that: the rotating part (121) is a ball hinge mechanism, and one end of the ball hinge mechanism is connected to the battery The sheet bracket (120) is hinged, and the other end of the ball hinge mechanism is connected to the connection platform (123) through a ball hinge rod. 3. A kind of experimental device for testing the photoelectric characteristics of flexible solar cells according to claim 1, characterized in that: the rotating member (121) includes a longitudinal rotation axis (124), and the connecting platform (123) passes through The longitudinal rotation shaft (124) is connected to the cell support (120), and the first telescopic rod (122) drives the connection platform (123) to rotate around the longitudinal rotation shaft (124). 4. A kind of experimental device for testing the photoelectric characteristics of flexible solar cells according to claim 3, characterized in that: said connection platform (123) is at least provided with two second telescopic rods (125), said The second telescopic rod (125) is hinged to the fixing mechanism (300) and drives it to rotate laterally around the connection platform (123), at least one of the second telescopic rods (125) is fixedly connected to the connection platform (123) . 5. A kind of experimental device for testing the photoelectric characteristics of flexible solar cells according to claim 4, characterized in that: the side plate of the mobile trolley (314) is provided with a fastening link (316), the A positioning piece (317) is installed on the fastening link (316), and the positioning piece (317) is used for fixing the battery sheet (319). 6. The experimental device for testing the photoelectric characteristics of flexible solar cells according to claim 4, characterized in that: the elastic member is a spring dynamometer (313), and one end of the spring dynamometer (313) is It is connected with the side plate of the mobile trolley (314), and the other end is connected with the rope bolt (311) provided on the pallet (310) through a rope (312). 7. An experimental device for testing the photoelectric characteristics of flexible solar cells according to any one of claims 1 to 6, characterized in that: the light source control module (400) includes a light source support rod (410), the A suspension frame (426) is provided between the light source support rods (410), and a suspension wire control mechanism (420) for controlling the lifting of the light source assembly (427) is provided in the suspension frame (426). 8. An experimental device for testing the photoelectric characteristics of flexible solar cells according to claim 7, characterized in that: the suspension control mechanism (420) includes a rotating base (422), and the rotating base (422) A winding column (421) is provided on the winding column (421), and a suspension wire (425) for connecting the light source assembly (427) is provided on the winding column (421), and the rotating base (422) is driven by a motor (424).

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