Testing device for photovoltaic cell

Abstract

The utility model discloses a testing device for a photovoltaic cell, and belongs to the technical field of photovoltaic cell detection. Comprising a workbench, a detection searchlight and a position frame are installed on the two sides of the workbench respectively, and the output end of the detection searchlight irradiates the position frame; the position frame comprises two sets of stand columns and a supporting plate, the stand columns are located on the two sides of the supporting plate, and the bottoms of the stand columns are fixedly connected with the workbench. An extension rod is arranged on the side, opposite to the detection searchlight, of the supporting plate, a ball cup is arranged at the end, opposite to the detection searchlight, of the extension rod, a hinge ball is installed in the ball cup, a threaded rod is arranged at the end of the hinge ball and located outside the ball cup, and the threaded rod is in threaded connection with a mounting plate. The utility model solves the technical problems that the rotation angle of the conventional photovoltaic cell is insufficient, and the rotation along one axis cannot be changed into the two-axis direction.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic cell detection, and relates to a testing device for photovoltaic cell pieces. Background Art

[0002] Photovoltaic cells are used to convert sunlight directly into electrical energy. Photovoltaic cells are devices that directly convert sunlight into electrical energy through the photoelectric effect or photochemical effect. Thin-film solar cells that work based on the photoelectric effect are the mainstream.

[0003] Before using photovoltaic cells, their current and voltage need to be tested. By irradiating the photovoltaic panels with a simulated sunlight light source, the current-voltage characteristic curve of the photovoltaic cells can be tested. When photovoltaic cells are in use, they will be affected by the rising and falling of the sun, causing the light energy they receive to be different in different time periods.

[0004] Reference document CN202222223798.9 describes a photovoltaic cell testing device that secures photovoltaic cells using a rotatable cross-shaped mounting plate, which rotates along a longitudinal axis via a rotating shaft. However, theoretically, the sun's rotational movement doesn't follow a single circular arc. Therefore, existing photovoltaic cell trackers are not limited to rotation along a single axis. Angle testing requires a wider detection range to more accurately measure the current-voltage characteristic curves of photovoltaic cells at different angles.

[0005] In summary, the present invention provides a testing device for photovoltaic cells. Summary of the Invention

[0006] The problem solved by the utility model is to solve the technical problem that the rotation angle of the current photovoltaic cell is insufficient and the rotation along one axis cannot be changed to two axes.

[0007] In order to solve the above technical problems, the inventors have come up with the technical solution of the present utility model through practice and summary. The present utility model discloses that the basic concept of the technical solution adopted by the present utility model to solve the above technical problems is:

[0008] A photovoltaic cell testing device includes a workbench, with a detection searchlight and a position frame mounted on both sides of the workbench, wherein the output end of the detection searchlight illuminates the position frame;

[0009] The positioning frame includes columns and a support plate. The columns are arranged in two groups and are located on both sides of the support plate, and the bottom is fixedly connected to the workbench. An extension rod is provided on the side of the support plate opposite to the detection searchlight. A ball head seat is provided at the end of the extension rod opposite to the detection searchlight. A hinged ball is installed in the ball head seat, and a threaded rod is provided at the end of the hinged ball. The threaded rod is located outside the ball head seat, and the threaded rod is threadedly connected to the mounting plate.

[0010] In a further technical solution, a hinge seat is provided on one side of the mounting plate opposite to the support plate, and the hinge seats are provided in four groups and distributed in a diamond shape;

[0011] Pull rods are installed on the two sets of hinged seats, and the pull rods are connected to the support plate and are suitable for adjusting the horizontal and vertical angles of the mounting plate;

[0012] Telescopic rods are installed on the two groups of hinged seats.

[0013] In a further technical solution, the pull rod includes a connecting portion and a screw portion, one end of the connecting portion is rotatably connected to the hinge seat, and the other end is equipped with a connecting bearing, and the outer ring of the connecting bearing is connected to the connecting portion;

[0014] The inner ring of the connecting bearing is connected to the end of the screw part, and one end of the screw part away from the connecting part is threadedly connected to the mounting plate and then penetrates.

[0015] In a further technical solution, the mounting plate is cross-shaped, and the two groups of telescopic rods and the two groups of pull rods are suitable for being symmetrically distributed about the central axis of the mounting plate; the telescopic rod includes a small diameter portion and an outer cylinder shell, the end of the small diameter portion is located in the outer cylinder shell, the small diameter portion is connected to the hinge seat, and the outer cylinder shell is connected to the mounting plate.

[0016] In a further technical solution, the pull rods or telescopic rods on the two sets of hinged seats installed upper and lower rotate in the horizontal plane with the vertical axis as the center line; the pull rods or telescopic rods on the two sets of hinged seats installed longitudinally rotate in the vertical plane along the longitudinal axis as the center line.

[0017] In a further technical solution, an inclined surface is provided on the side of the workbench away from the positioning frame, and a display interface is installed on the inclined surface, and a control cabinet is installed in the workbench, which is suitable for connecting the photovoltaic cells on the positioning frame and displaying on the display interface.

[0018] In a further technical solution, a position slot is provided on the side of the mounting plate facing away from the detection searchlight, and a clamping plate is installed on the position slot. The clamping plate is "L"-shaped, with one end extending outside the mounting plate and the other end having a position hole and a guide rod installed inside. One end of the guide rod is fixed in the position slot, and the other end passes through the clamping plate and is installed with a limit ring.

[0019] The clamping plate is connected to the inner wall of the position groove with a reset spring, one end of the reset spring is fixedly connected to the inner wall of the position groove, and the other end is fixedly connected to the clamping plate and sleeved on the guide rod; the reset spring is suitable for pulling the clamping plate to move toward the center of the mounting plate.

[0020] Beneficial effects

[0021] The utility model has the following advantages:

[0022] (1) Compared with the existing photovoltaic cell position frame, the present invention adds a pull rod and a telescopic rod to the position frame. The end of the pull rod is hinged so that the mounting plate can be rotated along the vertical axis in the horizontal plane and can also be rotated along the longitudinal axis in the vertical plane, that is, it can be deflected in two sets of directions to achieve a wider installation angle of the photovoltaic cell.

[0023] (2) The utility model sets the pull rod so that part of it is connected to the hinge seat for rotation and part of it is connected to the support plate by thread, so that the angle rotation can be achieved under the condition of spiral propulsion.

[0024] (3) The utility model is provided with hinged seats at symmetrical positions along the vertical axis of the cross, which are respectively connected as a group of pull rods and a group of telescopic rods. In this way, when adjusting the angle of one side, the other side will not be locked due to the threaded connection to the support plate. It will rotate and retract or extend with the end of the telescopic rod to achieve the change of angle, which has good practicality.

[0025] (4) The present invention can achieve the clamping and fixing of photovoltaic cells of different sizes by providing a clamping plate, thereby achieving a wider range of cell detection. The movable clamping plate on the guide rod can achieve the certainty of the moving direction, and the reset spring can maintain the symmetrical clamping effect of the clamping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 The utility model is a structure of a testing device for photovoltaic cells Figure 1 ;

[0028] Figure 2 for Figure 1 A magnified view of part A;

[0029] Figure 3 This is a front view of a testing device for photovoltaic cells according to the present invention;

[0030] Figure 4 The utility model is a structure of a testing device for photovoltaic cells Figure 2 ;

[0031] Figure 5 for Figure 4 A magnified view of part B;

[0032] Figure 6 Schematic diagram of the pull rod of the present utility model;

[0033] Figure 7 This is a cross-sectional view of the connection between the connecting portion and the screw portion of the present invention;

[0034] Figure 8 The utility model is a structure of a testing device for photovoltaic cells Figure 3 ;

[0035] Figure 9 for Figure 8 Magnified view of part C;

[0036] In the figure: 1, workbench; 11, inclined surface; 12, display interface; 13, control cabinet;

[0037] 2. Detection searchlight; 3. Positioning frame;

[0038] 31. Column; 32. Support plate; 33. Extension rod; 34. Ball seat; 35. Articulated ball; 36. Threaded rod; 37. Mounting plate; 38. Articulated seat; 39. Pull rod; 310. Telescopic rod; 311. Connecting bearing; 391. Connecting portion; 392. Screw portion; 3111. Small diameter portion; 3112. Outer cylinder shell;

[0039] 4. Position slot; 5. Clamp plate; 6. Guide rod; 7. Limit ring; 8. Return spring. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0042] Example 1

[0043] like Figure 1-7 The figure shows an implementation scheme of the present invention, a photovoltaic cell testing device, comprising a workbench 1, with a detection searchlight 2 and a position frame 3 installed on both sides of the workbench 1, the output end of the detection searchlight 2 irradiates the position frame 3; an inclined surface 11 is provided on the side of the workbench 1 away from the position frame 3, and a display interface 12 is installed on the inclined surface 11, and a control cabinet 13 is installed in the workbench 1, and the control cabinet 13 is suitable for connecting the photovoltaic cells on the position frame 3 and displaying on the display interface 12.

[0044] like Figure 2 and Figure 5As shown, the position frame 3 includes a column 31 and a support plate 32, the columns 31 are provided in two groups and are located on both sides of the support plate 32, and the bottom is fixedly connected to the workbench 1; the support plate 32 is provided with an extension rod 33 on the side opposite to the detection searchlight 2, and the extension rod 33 is provided with a ball head seat 34 at the end opposite to the detection searchlight 2, a hinge ball 35 is installed in the ball head seat 34, and a threaded rod 36 is provided at the end of the hinge ball 35, the threaded rod 36 is located outside the ball head seat 34, and the threaded rod 36 is threadedly connected to the mounting plate 37.

[0045] like Figure 5 As shown, the mounting plate 37 is provided with a hinge seat 38 on one side relative to the support plate 32, and the hinge seats 38 are provided in four groups and are distributed in a diamond shape, that is, in a rectangular shape, and realize the abutment and rotation effect of the support against the cross-shaped mounting plate;

[0046] The two groups of articulated seats 38 are equipped with pull rods 39 , which are connected to the support plate 32 and are suitable for adjusting the horizontal and longitudinal angles of the mounting plate 37 ; the two groups of articulated seats 38 are equipped with telescopic rods 310 .

[0047] refer to Figure 6 As shown, the pull rod 39 includes a connecting part 391 and a screw part 392. One end of the connecting part 391 is rotatably connected to the hinge seat 38, and the other end is equipped with a connecting bearing 311. The outer ring of the connecting bearing 311 is connected to the connecting part 391; a handle is installed at the end of the screw to achieve the effect of rotating and driving the screw part 392; the inner ring of the connecting bearing 311 is connected to the end of the screw part 392, and the end of the screw part 392 away from the connecting part 391 is threadedly connected to the mounting plate 37 and then passes through.

[0048] The mounting plate 37 is cross-shaped, and the two groups of telescopic rods 310 and the two groups of pull rods 39 are suitable for being symmetrically distributed about the central axis of the mounting plate 37; the telescopic rod 310 includes a small diameter portion 3111 and an outer cylinder shell 3112, and the end of the small diameter portion 3111 is located in the outer cylinder shell 3112, the small diameter portion 3111 is connected to the hinge seat 38, and the outer cylinder shell 3112 is connected to the mounting plate 37.

[0049] The pull rods 39 or telescopic rods 310 on the two sets of hinged seats 38 installed vertically rotate in the horizontal plane with the vertical axis as the center line; the pull rods 39 or telescopic rods 310 on the two sets of hinged seats 38 installed vertically rotate in the vertical plane along the longitudinal axis as the center line. It should be noted that the connection direction of the hinged seats needs to be specifically defined to prevent, for example, Figure 5 If the hinged seat marked 38 in the figure is changed to be installed vertically, it cannot be rotated in the horizontal plane with the center line of the vertical axis, because the hinged seat in the connection part cannot drive the connection part to rotate in the direction of the non-installation part at the rotating part; only if Figure 5 The designed installation direction of the articulated seat can realize the rotation of the cross-shaped installation plate in two directions.

[0050] Example 2

[0051] like Figure 8 and 9 As shown, another embodiment of the present invention is shown, based on Example 1, as Figure 9 As shown, a position slot 4 is provided on the side of the mounting plate 37 facing away from the detection searchlight 2, and a clamping plate 5 is installed on the position slot 4. The clamping plate 5 is "L"-shaped, and one end extends outside the mounting plate 37, and the other end has a position hole, and a guide rod 6 is installed inside. One end of the guide rod 6 is fixed in the position slot 4, and the other end passes through the clamping plate 5 and is installed with a limit ring 7.

[0052] The clamping plate 5 is connected to the inner wall of the positioning slot 4 by a return spring 8. One end of the return spring 8 is fixedly connected to the inner wall of the positioning slot 4, and the other end is fixedly connected to the clamping plate 5. The return spring 8 is also sleeved on the guide rod 6. The return spring 8 is suitable for pulling the clamping plate 5 toward the center of the mounting plate 37. By providing a clamping plate, the present utility model can clamp and fix photovoltaic cells of different sizes, thereby achieving a wider range of cell detection. The movable clamping plate on the guide rod ensures the certainty of the movement direction, and the return spring maintains the symmetrical clamping effect of the clamping plate.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0054] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A testing device for photovoltaic cells, characterized in that: The invention comprises a workbench (1), wherein a detection searchlight (2) and a position frame (3) are respectively installed on both sides of the workbench (1), and the output end of the detection searchlight (2) irradiates the position frame (3); The positioning frame (3) includes a column (31) and a support plate (32). The columns (31) are provided in two groups and are located on both sides of the support plate (32), and the bottom is fixedly connected to the workbench (1); an extension rod (33) is provided on the side of the support plate (32) opposite to the detection searchlight (2); a ball head seat (34) is provided at the end of the extension rod (33) opposite to the detection searchlight (2); a hinge ball (35) is installed in the ball head seat (34), and a threaded rod (36) is provided at the end of the hinge ball (35), the threaded rod (36) is located outside the ball head seat (34), and the threaded rod (36) is threadedly connected to the mounting plate (37).

2. A photovoltaic cell testing device according to claim 1, characterized in that: A hinge seat (38) is provided on one side of the mounting plate (37) relative to the support plate (32), and the hinge seats (38) are provided in four groups and are distributed in a diamond shape; The two sets of hinged seats (38) are equipped with pull rods (39), which are connected to the support plate (32) and are suitable for adjusting the horizontal and longitudinal angles of the mounting plate (37); Telescopic rods (310) are installed on the two groups of hinged seats (38).

3. A photovoltaic cell testing device according to claim 2, characterized in that: The pull rod (39) includes a connecting portion (391) and a screw portion (392), one end of the connecting portion (391) is rotatably connected to the hinge seat (38), and the other end is provided with a connecting bearing (311), the outer ring of the connecting bearing (311) is connected to the connecting portion (391); The inner ring of the connecting bearing (311) is connected to the end of the screw portion (392), and the end of the screw portion (392) away from the connecting portion (391) is threadedly connected to the mounting plate (37) and then penetrates.

4. A testing device for photovoltaic cells according to claim 3, characterized in that: The mounting plate (37) is cross-shaped, and the two groups of telescopic rods (310) and the two groups of pull rods (39) are suitable for being symmetrically distributed about the central axis of the mounting plate (37); the telescopic rod (310) includes a small-diameter portion (3111) and an outer cylindrical shell (3112), the end of the small-diameter portion (3111) is located in the outer cylindrical shell (3112), the small-diameter portion (3111) is connected to the hinge seat (38), and the outer cylindrical shell (3112) is connected to the mounting plate (37).

5. A testing device for photovoltaic cells according to claim 4, characterized in that: The pull rod (39) or telescopic rod (310) on the two sets of hinged seats (38) installed up and down rotates on the horizontal plane with the vertical axis as the center line; the pull rod (39) or telescopic rod (310) on the two sets of hinged seats (38) installed longitudinally rotates on the vertical plane along the longitudinal axis as the center line.

6. A photovoltaic cell testing device according to any one of claims 1 to 5, characterized in that: The workbench (1) is provided with an inclined surface (11) on a side away from the positioning frame (3), and a display interface (12) is installed on the inclined surface (11). A control cabinet (13) is installed in the workbench (1), and the control cabinet (13) is suitable for connecting the photovoltaic cells on the positioning frame (3) and displaying on the display interface (12).

7. A photovoltaic cell testing device according to claim 6, characterized in that: A position slot (4) is provided on the side of the mounting plate (37) facing away from the detection searchlight (2), and a clamping plate (5) is installed on the position slot (4). The clamping plate (5) is L-shaped, and one end extends outside the mounting plate (37), and the other end is provided with a position hole, and a guide rod (6) is installed inside. One end of the guide rod (6) is fixed in the position slot (4), and the other end passes through the clamping plate (5) and is installed with a limit ring (7). The clamping plate (5) is connected to the inner wall of the position groove (4) by a return spring (8), one end of the return spring (8) is fixedly connected to the inner wall of the position groove (4), and the other end is fixedly connected to the clamping plate (5) and sleeved on the guide rod (6); the return spring (8) is suitable for pulling the clamping plate (5) to move toward the center of the mounting plate (37).

Images