A battery defect detection device

Abstract

The utility model discloses a kind of battery defect detection devices, it is related to battery defect detection technical field, including rack, and the rack one side is set to open mouth, rack top is fixedly connected with vertical plate, and T-shaped slot is opened in vertical plate;Rack top is equipped with substrate, and four evenly distributed placement shells of circumferential shape are fixedly connected in substrate top, and four placement shells are used to place the solar cell piece to be detected, and infrared thermal imaging crack detector is equipped in vertical plate one side;Substrate bottom is equipped with driving assembly, for making substrate rotate to ensure that four placement shells rotate to the position close to infrared thermal imaging crack detector in turn. Advantageous effect is: four placement shells can be rotated to the position close to infrared thermal imaging crack detector in turn and carry out defect detection, so when detecting the solar cell piece on a station, artificial can replace the solar cell piece on other station, so that standby waiting state does not appear, and then increase the efficiency of detection.

Description

Technical Field

[0001] This utility model relates to the field of battery defect detection technology, specifically a battery defect detection device. Background Technology

[0002] There are many types of batteries, and solar cells are one of them. Solar cells are photoelectric conversion devices with crystalline silicon as the core material, which mainly realize the conversion of light energy into electrical energy through PN junctions.

[0003] During the production of solar cells, defect sampling inspection is required to check for micro-cracks on their surface. The results of the sampling inspection can determine the yield rate of the entire batch.

[0004] The existing battery defect detection device only has one detection station, which causes the device to be in standby mode when replacing battery cells. When there are many batteries to be detected, the detection efficiency will decrease. Therefore, it needs to be improved.

[0005] Therefore, it is necessary to invent a battery defect detection device. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a battery defect detection device.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A battery defect detection device includes a frame, with one side of the frame being open, and a vertical plate fixedly connected to the top of the frame, with a T-shaped groove formed on the vertical plate;

[0009] The top of the frame is provided with a base plate, and four placement shells are fixedly connected to the top of the base plate in a circumferentially evenly distributed manner. All four placement shells are used to place the solar cells to be tested. An infrared thermal imaging crack detector is provided on one side of the upright plate.

[0010] The bottom of the substrate is provided with a driving component, which is used to rotate the substrate to ensure that the four placement shells move in turn to a position close to the infrared thermal imaging crack detector.

[0011] The upright plate is equipped with a moving component, which is used to move the infrared thermal imaging crack detector along the length of the solar cell to achieve detection without blind spots.

[0012] Preferably, the drive assembly includes a cylinder, which is embedded in the frame and fixedly connected to the bottom of the base plate, and the cylinder is connected to the frame via a bearing.

[0013] Preferably, a servo motor is fixedly connected to the inner wall of the bottom of the frame, and a bevel gear is fixedly connected to the output shaft of the servo motor. A bevel gear ring is provided on one side of the bevel gear and meshes with it. The bevel gear ring is fixedly sleeved on the outside of the cylinder.

[0014] Preferably, each of the four placement shells has a sponge pad connected inside.

[0015] Preferably, the moving component includes a housing, which is fixedly connected in a T-slot. A second servo motor is fixedly connected to one side of the housing. A threaded rod is fixedly connected to the output shaft of the second servo motor. The threaded rod passes through the housing. A threaded block is sleeved on the outside of the threaded rod, and the threaded block and the threaded rod are connected by threads.

[0016] Preferably, the threaded block is located directly above the infrared thermal imaging crack detector and a movable plate is fixedly connected between them. A limit rod is fixedly connected inside the housing. The limit rod passes through the threaded block and slides in contact with it. The limit rod has a T-shaped cross-section. The threaded rod is connected to the housing through a bearing.

[0017] Preferably, two reinforcing rods are fixedly connected between the outer shell and the upright plate.

[0018] Preferably, two stabilizing rods are fixedly connected between the upright plate and the frame.

[0019] Preferably, the frame is fixedly connected to four support legs at the bottom corners.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] Four placement shells for placing solar cells to be inspected are set on the substrate, thus providing the device with four inspection stations. A driving component is also provided, which can rotate the substrate during use, causing the four placement shells to move in turn to a position close to the infrared thermal imaging crack detector for defect inspection. In this way, while inspecting the cells at one station, the operator can replace the cells at other stations, thus avoiding standby waiting and increasing inspection efficiency. Attached Figure Description

[0022] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0023] Figure 1 A schematic diagram of the overall structure of this utility model;

[0024] Figure 2The main sectional view provided for this utility model;

[0025] Figure 3 Exploded perspective view of components such as the outer shell, servo motor II, threaded rod, and threaded block provided for this utility model;

[0026] Figure 4 A side view provided for this utility model.

[0027] The diagram shows the following components: 1. Frame; 2. Vertical plate; 3. Base plate; 4. Housing; 5. Infrared thermal imaging crack detector; 6. Cylinder; 7. Servo motor one; 8. Bevel gear; 9. Bevel gear ring; 10. Sponge pad; 11. Outer shell; 12. Servo motor two; 13. Threaded rod; 14. Threaded block; 15. Moving plate; 16. Reinforcing rod; 17. Stabilizing rod; 18. Support leg; 19. Limiting rod. Detailed Implementation

[0028] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0029] Example

[0030] See attached document Figure 1 -Appendix Figure 4 This utility model discloses a battery defect detection device, including a frame 1 with an open side. A vertical plate 2 is fixedly connected to the top of the frame 1, and a T-shaped groove is provided on the vertical plate 2. A base plate 3 is provided on the top of the frame 1, and four placement shells 4 evenly distributed in a circle are fixedly connected to the top of the base plate 3. Each placement shell 4 is used to place the solar cell to be tested. An infrared thermal imaging crack detector 5 is provided on one side of the vertical plate 2. A driving component is provided at the bottom of the base plate 3 to drive the base plate 3 to rotate so that the four placement shells 4 move in turn to a position close to the infrared thermal imaging crack detector 5. A moving component is provided on the vertical plate 2 to drive the infrared thermal imaging crack detector 5 to move along the length of the solar cell to achieve detection without blind spots.

[0031] During the specific testing, the battery cell to be tested is placed in each of the four placement shells 4. Initially, the placement shell 4 on the right and the battery cell it carries are located below the infrared thermal imaging crack detector 5. The infrared thermal imaging crack detector 5 is moved along the length of the battery cell by a moving component. In accordance with the detection principle of the infrared thermal imaging crack detector 5 (first, the infrared thermal imaging crack detector 5 applies uniform thermal excitation to the surface of the battery cell by irradiating it with infrared lamps, so that the battery cell as a whole absorbs heat and conducts it along the inside; when there are micro-cracks on the surface, the air in the crack gaps will hinder local heat conduction, causing the heat diffusion rate in the crack area to be slower than that in the normal area, forming a clear "temperature anomaly zone", where the temperature at the crack is lower than the surrounding area; then, the high-resolution infrared detector built into the instrument captures the temperature field distribution on the surface of the battery cell in real time, converting the temperature difference at different locations into grayscale or pseudo-color thermal imaging images, where the area with a significant temperature contrast with the surrounding area is the location of the micro-crack, and finally the location and shape of the crack are clearly presented through the image, realizing detection and identification), a comprehensive test of the battery cell is completed.

[0032] During the inspection, the infrared thermal imaging crack detector 5 can be connected to an external display device, such as a computer, via wired or wireless means to display thermal imaging images. The connection method is a conventional technology and will not be described in detail here.

[0033] After a cell is tested, the drive assembly drives the substrate 3 to rotate 90 degrees, moving the next placement shell 4 and the cell to the testing position, and repeating the above testing process. During the cyclic testing process, when the first cell that has been tested is rotated to the left side of the frame 1 along with the substrate 3, the cell can be manually replaced. The replacement operation is carried out synchronously with the subsequent testing operations, avoiding equipment standby and improving testing efficiency.

[0034] The drive assembly includes a cylinder 6 embedded in the frame 1 and fixedly connected to the bottom of the substrate 3. The cylinder 6 and the frame 1 are rotatably connected via bearings. A servo motor 7 is fixedly connected to the inner wall of the bottom of the frame 1. A bevel gear 8 is fixedly connected to the output shaft of the servo motor 7. A bevel gear ring 9 is meshed on one side of the bevel gear 8. The bevel gear ring 9 is fixedly sleeved on the outside of the cylinder 6. The servo motor 7 drives the bevel gear 8 to rotate, and the bevel gear ring 9 drives the cylinder 6 and the substrate 3 to rotate synchronously, thereby realizing the position switching of the housing 4.

[0035] Each of the four placement shells 4 has a sponge pad 10 inside. The sponge pad 10 prevents the battery cells from directly contacting the placement shell 4 and prevents the battery cells from detaching from the placement shell 4 when the substrate 3 rotates.

[0036] The moving component includes a housing 11 fixedly connected within a T-shaped groove. A servo motor 12 is fixedly connected to one side of the housing 11. A threaded rod 13 is fixedly connected to the output shaft of the servo motor 12. The threaded rod 13 passes through the housing 11 and is rotatably connected to the housing 11 via a bearing. A threaded block 14 is sleeved on the outside of the threaded rod 13. The threaded block 14 is threadedly connected to the threaded rod 13, and the threaded block 14 is fixedly connected to the infrared thermal imaging crack detector 5 via a moving plate 15. A limit rod 19 is fixedly connected inside the housing 11. The limit rod 19 passes through the threaded block 14 and slides in contact with it. The limit rod 19 has a T-shaped cross-section. The servo motor 12 drives the threaded rod 13 to rotate, causing the threaded block 14 to move smoothly along the limit rod 19. In turn, the moving plate 15 drives the infrared thermal imaging crack detector 5 to move along the length of the battery cell. The T-shaped limit rod 19 can help support the weight of the infrared thermal imaging crack detector 5, improving the stability of movement.

[0037] Two reinforcing rods 16 are fixedly connected between the outer shell 11 and the upright plate 2, and two stabilizing rods 17 are fixedly connected between the upright plate 2 and the frame 1 to enhance the overall structural stability of the device; support legs 18 are fixedly connected at the four corners of the bottom of the frame 1 to support the entire device.

[0038] In this utility model, the model and specifications of servo motor 7, servo motor 12 and infrared thermal imaging crack detector 5 can be selected and determined according to the actual needs of the device, and they are all existing mature products; the control method of the device is realized by the controller, and the control circuit of the controller can be completed by conventional programming by those skilled in the art. The power supply is a known technology. Since this utility model mainly protects the mechanical structure, the control method and circuit connection will not be described in detail.

[0039] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A battery defect detection device, characterized in that: Includes a frame (1), and one side of the frame (1) is set as an open opening. A vertical plate (2) is fixedly connected to the top of the frame (1), and a T-shaped groove is provided on the vertical plate (2). The frame (1) is provided with a base plate (3) on the top. Four placement shells (4) are fixedly connected to the top of the base plate (3) in a circumferentially evenly distributed manner. All four placement shells (4) are used to place the solar cells to be tested. An infrared thermal imaging crack detector (5) is provided on one side of the upright plate (2). The bottom of the substrate (3) is provided with a driving component, which is used to rotate the substrate (3) to ensure that the four placement shells (4) move in turn to a position close to the infrared thermal imaging crack detector (5); The upright plate (2) is provided with a moving component, which is used to move the infrared thermal imaging crack detector (5) along the length of the solar cell to achieve detection without blind spots.

2. The battery defect detection device according to claim 1, characterized in that: The drive assembly includes a cylinder (6), which is embedded in the frame (1) and fixedly connected to the bottom of the base plate (3). The cylinder (6) and the frame (1) are connected by bearings.

3. The battery defect detection device according to claim 2, characterized in that: The bottom inner wall of the frame (1) is fixedly connected to a servo motor (7), and the output shaft of the servo motor (7) is fixedly connected to a bevel gear (8). A bevel gear ring (9) is provided on one side of the bevel gear (8) and meshes with it. The bevel gear ring (9) is fixedly sleeved on the outside of the cylinder (6).

4. The battery defect detection device according to claim 1, characterized in that: Each of the four placement shells (4) has a sponge pad (10) connected inside.

5. The battery defect detection device according to claim 1, characterized in that: The moving component includes a housing (11), which is fixedly connected in a T-slot. A servo motor (12) is fixedly connected to one side of the housing (11). A threaded rod (13) is fixedly connected to the output shaft of the servo motor (12). The threaded rod (13) passes through the housing (11). A threaded block (14) is sleeved on the outside of the threaded rod (13), and the threaded block (14) and the threaded rod (13) are connected by threads.

6. The battery defect detection device according to claim 5, characterized in that: The threaded block (14) is located directly above the infrared thermal imaging crack detector (5) and a movable plate (15) is fixedly connected between it and the outer shell (11). A limiting rod (19) is fixedly connected inside the outer shell (11). The limiting rod (19) passes through the threaded block (14) and slides in contact with it. The cross section of the limiting rod (19) is set to T-shape. The threaded rod (13) is connected to the outer shell (11) through a bearing.

7. The battery defect detection device according to claim 6, characterized in that: Two reinforcing rods (16) are fixedly connected between the outer shell (11) and the upright plate (2).

8. The battery defect detection device according to claim 1, characterized in that: Two stabilizing rods (17) are fixedly connected between the upright plate (2) and the frame (1).

9. The battery defect detection device according to claim 1, characterized in that: The frame (1) is fixedly connected to four legs (18) at the bottom corners.

Images