Photovoltaic cell conductive cotton power-on test device

Abstract

The utility model discloses a photovoltaic cell conductive cotton power-on test device. The photovoltaic cell conductive cotton power-on test device comprises a driving mechanism and a pressing mechanism. The pressing mechanism comprises a pressing plate, a rotating table in rotating fit is arranged in the middle of the upper end of the pressing plate, the lower end of the pressing plate is connected with an electrifying plate, the driving mechanism comprises a driving seat, angle adjusters abutting against the adjusting parts are in threaded connection with the two sides of the upper end of the driving seat, and the driving seat is in transmission connection with an electric cylinder module capable of driving the driving seat and the pressing plate to move up and down. According to the utility model, the conductive cotton is in contact with the photovoltaic battery piece, the contact performance is strong, the uniformity of electrifying the battery piece is good, the generation of contact resistance can be effectively reduced, and the contact force generated by contact conduction is effectively reduced due to the good flexibility; the angle of the pressing plate can be accurately adjusted by rotating the angle adjusters at the front end and the rear end of the driving seat, the pressing plate provided with the electrifying plate is kept horizontal, and subfissure of the battery piece is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a photovoltaic cell sheet conductive cotton power-on test device. Background Art

[0002] In the production and manufacturing of photovoltaic cells, conductive cotton is needed to conduct contact and power-on tests on the main grid wire welding pairs of photovoltaic cells. During the power-on process, the power-on device needs to be in close contact with the positive welding point of the cell. At present, the basic pressing method is to use the pin needle pressing method to achieve conductivity. There are three problems: 1. There is an imbalance between the head and tail when using the pin needle, and there is a height difference. However, in this case, pressing cannot be effectively powered on; 2. Because the pin needle is a circle with a diameter of about 1.5mm, the force applied at the positive welding point of the cell will cause hidden cracks in the cell; 3. Due to the contact characteristics of the pin needle, there is a metal fatigue of the compression spring after long-term contact, resulting in poor contact and uneven power-on. Utility Model Content

[0003] In view of the defects in the prior art, the purpose of the utility model is to provide a photovoltaic cell conductive cotton power-on testing device, which has good uniformity during the photovoltaic cell power-on testing process, can effectively reduce the generation of contact resistance, and can also avoid the occurrence of unqualified products such as hidden cracks and splits in the cell due to testing.

[0004] The technical solution adopted by the utility model is: a photovoltaic cell conductive cotton power-on test device, a driving mechanism and a pressing mechanism; the pressing mechanism includes a pressing plate, a rotating table is provided in the middle of the upper end of the pressing plate, adjustment tables are provided on both sides of the upper end of the pressing plate corresponding to the rotating table, the lower end of the pressing plate is connected with a power-on plate, and the lower end of the power-on plate is provided with detachable conductive cotton; the driving mechanism includes a driving seat, the driving seat is rotatably matched with the rotating table, angle adjusters that are against the adjustment part are screwed on both sides of the upper end of the driving seat, and the driving seat is transmission-connected with an electric cylinder module that can drive the driving seat and the pressing plate to move up and down.

[0005] In the technical solution, conductive cotton is installed on the power-on plate located at the lower end of the pressing plate. Since the conductive cotton is soft in texture, the method of using the conductive cotton to contact and electrify the photovoltaic cell is more uniform, which effectively reduces the generation of contact resistance. The pressing plate is rotated with the driving seat through a rotating table. Before the test operation, the angle of the pressing plate can be accurately adjusted by rotating the angle adjusters at the front and rear ends of the driving seat to ensure that the pressing plate with the power-on plate installed remains horizontal. When the electric cylinder module is used to drive the downward pressure for pressing, the entire surface of the horizontally arranged conductive cotton contacts the cell, avoiding the contact surface between the pin needle and the cell being in an arc shape due to the angle problem, which makes the cell easy to break.

[0006] Preferably, a positioning plate is provided above the driving seat, and a guide rod that movably passes through the positioning plate is connected to the upper end of the driving seat.

[0007] Preferably, the positioning device is provided with a linear bearing that slidably cooperates with the guide rod.

[0008] Preferably, the end of the driving seat is provided with a connection port connected to the piston end of the electric cylinder module.

[0009] Preferably, a mounting plate for conductive cotton is provided on the power-carrying plate.

[0010] Preferably, the rotating platform is provided with an assembly bearing that rotates with the driving seat.

[0011] Preferably, it also includes an electric cylinder bracket, the electric cylinder module is fixed on the upper end of the electric cylinder bracket, and a placement table for placing photovoltaic cells is fixed at the lower end of the electric cylinder bracket corresponding to below the power-on plate.

[0012] The beneficial effects of the utility model are as follows: the utility model contacts the photovoltaic cell sheet through the conductive cotton, has strong contact performance, has good uniformity of electricity on the cell sheet, can effectively reduce the generation of contact resistance, and effectively reduces the contact force generated by contact conduction due to good softness. The angle of the pressing plate can be accurately adjusted by rotating the angle adjusters at the front and rear ends of the driving seat to ensure that the pressing plate with the energized plate installed remains horizontal, avoiding the occurrence of unqualified products such as hidden cracks and splits in the cell sheet, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0014] Figure 1 It is a three-dimensional diagram of the photovoltaic cell conductive cotton power-on test device provided in an embodiment of the utility model.

[0015] Figure 2 This is a structural diagram of the electric cylinder support of the photovoltaic cell conductive cotton power-on test device provided in an embodiment of the utility model.

[0016] Figure 3 It is a three-dimensional diagram of the driving seat of the photovoltaic cell conductive cotton power-on test device provided in the embodiment of the utility model.

[0017] Figure 4 This is a diagram of the installation of a pressure plate of a photovoltaic cell conductive cotton power-on test device provided in an embodiment of the utility model.

[0018] Figure 5 It is an assembly diagram of the power-on board of the photovoltaic cell conductive cotton power-on test device provided in the embodiment of the utility model.

[0019] Figure numerals: drive seat 100, connection port 110, pressure plate 200, rotating table 210, adjustment table 220, power plate 300, conductive cotton 400, angle adjuster 500, electric cylinder module 600, positioning plate 700, guide rod 800, linear bearing 900, mounting plate 1000, assembly bearing 1100, electric cylinder bracket 1200, placement table 1300, photovoltaic cell 1400. DETAILED DESCRIPTION

[0020] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0021] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0022] like Figures 1 to 5 As shown, a specific embodiment of the utility model provides a photovoltaic cell conductive cotton power-on test device, which has good uniformity during the photovoltaic cell power-on test, and can avoid the occurrence of unqualified products such as hidden cracks and splits in the cell due to the test; specifically, it includes a driving mechanism and a pressing mechanism arranged up and down, the pressing mechanism includes a pressing plate, a rotating table 210 is provided in the middle of the upper end of the pressing plate 200, and adjustment tables 220 that can be movably inserted into the lower end of the driving seat 100 are provided on both sides of the upper end of the pressing plate 200 corresponding to the rotating table 210, and the lower end of the pressing plate 200 is connected to a power-on plate 300, and the lower end of the power-on plate 300 is provided with detachable conductive cotton 400; the driving mechanism includes a driving seat, the driving seat is rotatably matched with the rotating table 210, and angle adjusters 500 that are against the adjustment part are screwed on both sides of the upper end of the driving seat 100, and the driving seat 100 is transmission-connected to an electric cylinder module 600 that can drive the driving seat 100 and the pressing plate 200 to move up and down.

[0023] like Figures 1 to 5As shown, through the above arrangement, in this embodiment, the driving seat 100, the pressing plate 200 and the power-on plate 300 are arranged from top to bottom, and the driving seat 100 drives the power-on plate 300 to move up and down through the electric cylinder module 600 to achieve pressing; the power-on plate 300 located at the lower end of the pressing plate 200 is equipped with conductive cotton 400 for contacting with the photovoltaic cell sheet. Since the conductive cotton 400 is soft in texture, the method of using the conductive cotton 400 to contact with the photovoltaic cell sheet for powering on is more uniform, which effectively reduces the generation of contact resistance. The pressing plate 200 is rotatably coordinated with the driving seat 100 through the rotating table 210. Before the test operation, the angle of the pressing plate 200 can be accurately adjusted by rotating the angle adjuster 500 at the front and rear ends of the driving seat 100 to ensure that the pressing plate 200 equipped with the power-on plate 300 remains horizontal, and the entire surface of the horizontally arranged conductive cotton 400 is in contact with the cell sheet to avoid the cell sheet from being easily broken due to angle problems.

[0024] As mentioned above, the drive seat 100 is driven to move up and down by the electric cylinder module 600, so that the pressing plate 200 and the energized plate are pressed together. In order to ensure stability during the up and down movement, the present embodiment is provided with a positioning plate 700 above the drive seat 100, and the upper end of the drive is connected with a guide rod 800 that moves through the positioning plate 700; the positioning plate 700 is provided with a linear bearing 900 that slides with the guide rod 800. In this way, the stability and pressing accuracy of the up and down movement of the drive seat 100 are ensured by the cooperation of the guide rod 800 and the linear bearing 900, and the linear bearing 900 reduces the friction of the up and down movement of the guide rod 800.

[0025] like Figures 1 to 5 As shown, in order to achieve transmission connection between the driving seat 100 and the electric cylinder module 600 , a connection port 110 connected to the piston end of the electric cylinder module 600 is provided at the end of the driving seat 100 in this embodiment.

[0026] like Figures 1 to 5 As shown, in actual application, in order to facilitate the replacement of the conductive cotton 400 structure, this embodiment is provided with a mounting plate 1000 for the conductive cotton 400 on the power-on board 300. After the conductive cotton 400 is installed on the mounting plate 1000, the mounting plate 1000 is fixedly assembled with the power-on board 300, which facilitates the removal of the conductive cotton 400 and ensures the installation stability.

[0027] As mentioned above, in this embodiment, the driving seat 100 is rotatably matched with the middle part of the pressing plate 200, so that the angle of the pressing plate 200 can be adjusted. In this embodiment, an assembly bearing 1100 rotatably matched with the driving seat 100 is provided on the rotating platform 210. The bearing structure ensures the flexibility and accuracy of the adjustment of the pressing plate 200.

[0028] like Figure 1 and Figure 2As shown, this embodiment also provides an electric cylinder bracket 1200 for installing the entire mechanism, the electric cylinder module 600 is fixed on the upper end of the electric cylinder bracket 1200, and a placement table 1300 for placing photovoltaic cells is fixed at the lower end of the electric cylinder bracket 1200 corresponding to the lower end of the power-on board 300. The electric cylinder bracket 1200 can stably install the electric cylinder module 600, and the end of the positioning plate 700 can be fixed on the upper end of the electric cylinder bracket 1200 to form a fixation for the pressing structure to ensure the stability of the entire structure. When in use, the photovoltaic cells are placed on the placement table 1300 for pressing and power-on testing. In actual applications, after the cell is placed in place through the sensor structure, the electric cylinder module 600 is operated to automatically move the power-on board 300 installed with the conductive cotton 400 downward for pressing and power-on testing. In this embodiment, the electric cylinder module 600 adopts a servo electric cylinder structure, and the specific models and specifications of the servo electric cylinder and the sensor are selected according to needs, which will not be repeated here.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A photovoltaic cell conductive cotton power-on test device, characterized in that: It includes a driving mechanism and a pressing mechanism; The pressing mechanism comprises a pressing plate (200), a rotating platform (210) is provided in the middle of the upper end of the pressing plate (200), adjustment platforms (220) are provided on both sides of the upper end of the pressing plate (200) corresponding to the rotating platform (210), the lower end of the pressing plate (200) is connected to a power-carrying plate (300), and a detachable conductive cotton (400) is provided at the lower end of the power-carrying plate (300); The driving mechanism comprises a driving seat (100) which is rotatably matched with a rotating platform (210), and angle adjusters (500) which abut against an adjusting portion are screwed on both sides of the upper end of the driving seat (100), and the driving seat (100) is drivingly connected to an electric cylinder module (600) which can drive the driving seat (100) and the pressure plate (200) to move up and down.

2. The photovoltaic cell conductive cotton power-on test device according to claim 1, characterized in that: A positioning plate (700) is provided above the driving seat (100), and a guide rod (800) that movably passes through the positioning plate (700) is connected to the upper end of the driving seat (100).

3. The photovoltaic cell conductive cotton power-on test device according to claim 2, characterized in that: The positioning plate (700) is provided with a linear bearing (900) which is slidably matched with the guide rod (800).

4. The photovoltaic cell conductive cotton power-on test device according to claim 1, characterized in that: The end of the driving seat (100) is provided with a connection port (110) connected to the piston end of the electric cylinder module (600).

5. The photovoltaic cell conductive cotton power-on test device according to claim 1, characterized in that: A mounting plate (1000) for the conductive cotton (400) is provided on the power-carrying plate (300).

6. The photovoltaic cell conductive cotton power-on test device according to claim 1, characterized in that: The rotating platform (210) is provided with an assembly bearing (1100) that is rotatably matched with the driving seat (100).

7. The photovoltaic cell conductive cotton power-on test device according to claim 1, characterized in that: It also includes an electric cylinder bracket (1200), the electric cylinder module (600) is fixed to the upper end of the electric cylinder bracket (1200), and a placement table (1300) for placing photovoltaic cells is fixed at the lower end of the electric cylinder bracket (1200) corresponding to below the power-on plate (300).

Images