Material taking detection device and stringer

Abstract

The application relates to a taking detection device and a string welding machine. The taking detection device comprises a taking mechanism, an upper electrical device and a defect detection mechanism. The taking mechanism is used for picking up a battery string. The upper electrical device is arranged on the taking mechanism, and is used for electrifying the battery string. The defect detection mechanism is arranged on the taking mechanism, and is used for collecting an image of the battery string. The upper electrical device and the defect detection mechanism are integrated on the taking mechanism. After the taking mechanism picks up the battery string, the battery string can be electrified and detected, and the battery string does not need to be picked up and carried multiple times. Therefore, the process can be simplified, the residence time of the battery string on the string welding machine is reduced, and the production efficiency is improved. In addition, the risk of falling and fragmentation of the battery string is reduced by reducing the number of times of picking up the battery string.

Description

Technical Field

[0001] This application relates to the field of photovoltaic processing technology, and in particular to a material handling and testing device and a string welding machine. Background Technology

[0002] In the photovoltaic module manufacturing process, a stringer uses welding strips to weld multiple half-cells into a string. Then, a material handling mechanism picks up the string and transfers it to an EL (Electroluminescence) testing device for defect detection. However, this process requires the material handling mechanism to pick up and move the string multiple times, resulting in a prolonged time the string spends on the stringer and thus reduced production efficiency. Utility Model Content

[0003] Therefore, it is necessary to provide a material handling and testing device and a stringing machine to reduce the time that battery strings stay on the stringing machine, which is beneficial to improving production efficiency.

[0004] In a first aspect, this application provides a material handling and detection device, comprising:

[0005] A material-picking mechanism, used to pick up battery strings;

[0006] The power-on fixture, located on the material handling mechanism, is used to power on the battery string; and

[0007] A defect detection mechanism is provided at the material handling mechanism and is used to collect images of the battery string.

[0008] In one embodiment, the defect detection mechanism includes an EL camera for taking pictures of the battery string after power-on; and / or, the defect detection mechanism includes an appearance inspection camera for taking pictures of the battery string.

[0009] In one embodiment, the power-on fixture includes a first power-on fixture and a second power-on fixture, the first power-on fixture being disposed on the side of the second power-on fixture, and both the first power-on fixture and the second power-on fixture being used to power on the battery string.

[0010] In one embodiment, the first power-on fixture includes a first power-on component and a second power-on component electrically connected to the first power-on component, the first power-on component and the second power-on component being spaced apart along a first direction; the second power-on fixture includes a third power-on component and a fourth power-on component electrically connected to the third power-on component, the third power-on component being disposed on one side of the first power-on component in the first direction, the fourth power-on component being disposed on one side of the second power-on component in the first direction, the first power-on component, the second power-on component, the third power-on component and the fourth power-on component all extending along a second direction; the first direction intersects the second direction.

[0011] In one embodiment, the length of the second electric fixture in the second direction of the material handling mechanism is greater than the length of the first electric fixture in the second direction of the material handling mechanism.

[0012] In one embodiment, the height of the second power-on fixture is greater than the height of the first power-on fixture.

[0013] In one embodiment, the material handling mechanism includes a mounting base and a suction nozzle, wherein the suction nozzle, the electrical fixture, and the defect detection mechanism are all located on the mounting base.

[0014] In one embodiment, the material handling mechanism further includes a material handling robotic arm, and the mounting base is disposed on the material handling robotic arm.

[0015] Secondly, this application also provides a string welding machine, comprising:

[0016] Material handling and inspection station;

[0017] A conveying device, wherein the conveying device is used to convey the battery string to the material handling and inspection station; and

[0018] The material picking and testing device described in any of the above embodiments, wherein the material picking and testing device picks up the battery string at the material picking and testing station and tests the battery string.

[0019] In one embodiment, the conveying device is provided with a support member located at the material handling and inspection station, and the support member is used to support the battery string.

[0020] The aforementioned material handling and testing device and stringing machine, after multiple battery cells are welded into a battery string by welding ribbons, the material handling mechanism picks up the battery string, and the power-on fixture contacts the welding ribbon of the battery string to power it on. The defect detection mechanism acquires images of the battery string to determine whether there are any defects. Thus, by integrating the power-on fixture and the defect detection mechanism into the material handling mechanism, the material handling mechanism can power on and test the battery string immediately after picking it up, eliminating the need for multiple picking and handling of the battery string. This simplifies the process, reduces the time the battery string spends on the stringing machine, and thus improves production efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a material sampling and detection device according to an embodiment of this application.

[0022] Figure 2 for Figure 1 The top view of the material handling and detection device shown.

[0023] Explanation of icon numbers:

[0024] 10. Material handling and inspection device; 11. Material handling mechanism; 111. Mounting base; 112. Suction nozzle; 12. Electrical fixture; 121. First electrical fixture; 1211. First electrical component; 1212. Second electrical component; 122. Second electrical fixture; 1221. Third electrical component; 1222. Fourth electrical component; 13. Defect detection mechanism. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] See Figure 1 One embodiment of this application provides a string welding machine, including a conveying device and a material picking and detection device 10. The conveying device is used to convey battery strings, and the material picking and detection device 10 is used to pick up battery strings and detect them.

[0027] Furthermore, the stringing machine also includes a material handling and inspection station. During operation, multiple battery cells are welded into a battery string using welding strips. Then, a conveyor transports the battery string to the material handling and inspection station, where the material handling and inspection device 10 picks up the battery string and inspects its quality.

[0028] In one embodiment, see Figure 1The material handling and inspection device 10 includes a material handling mechanism 11, an electrical welding fixture 12, and a defect detection mechanism 13. The material handling mechanism 11 is used to pick up battery strings. The electrical welding fixture 12 is located on the material handling mechanism 11 and is used to power up the battery strings. The defect detection mechanism 13 is located on the material handling mechanism 11 and is used to acquire images of the battery strings. After multiple battery cells are welded into battery strings by solder ribbons, the material handling mechanism 11 picks up the battery strings, and the electrical welding fixture 12 contacts the solder ribbons of the battery strings, thereby powering them up. The defect detection mechanism 13 acquires images of the battery strings to determine whether there are defects in the battery strings. Thus, by integrating the electrical welding fixture 12 and the defect detection mechanism 13 onto the material handling mechanism 11, the material handling mechanism 11 can power up and inspect the battery strings immediately after picking them up, eliminating the need for multiple picking and handling of the battery strings. This simplifies the process, reduces the time the battery strings spend on the welding machine, and thus improves production efficiency. In addition, by reducing the number of times the battery string is picked up, the risk of the battery string falling off and breaking can be reduced.

[0029] In one embodiment, the defect detection mechanism 13 includes an EL camera for taking pictures of the battery string after it has been powered on. Optionally, the EL camera is a near-infrared camera. After the battery string is transported to the material handling and inspection station, the power-on fixture 12 powers on the battery string. Then, the EL camera acquires images of the powered-on battery string, and based on these images, it assesses whether the battery string has defects such as microcracks, fragments, poor solder joints, black spots, broken grids, and mixed grids.

[0030] In one embodiment, the defect detection mechanism 13 further includes a visual inspection camera for photographing the battery string. Optionally, the visual inspection camera is a visible light camera. After the battery string is conveyed to the material handling and inspection station, the visual inspection camera captures images of the battery string's appearance and, based on these images, assesses whether there are foreign objects on the surface of the battery string or whether the solder ribbon has detached from the main grid line, among other defects.

[0031] It should be noted that the EL camera captures an image of the battery string after power-on, while the appearance inspection camera captures an image of the battery string's appearance. If either the image of the battery string after power-on or the appearance image shows a defect, the battery string is judged to be defective; if neither the image of the battery string after power-on nor the appearance image shows a defect, the battery string is judged to be good.

[0032] In one embodiment, see Figure 1The material handling mechanism 11 includes a mounting base 111 and a suction nozzle 112. The suction nozzle 112, the electrical mounting fixture 12, and the defect detection mechanism 13 are all located on the mounting base 111. Optionally, the suction nozzle 112, the electrical mounting fixture 12, and the defect detection mechanism 13 are all located on the same side of the mounting base 111, which provides mounting positions for these components. The suction nozzle 112 firmly grips the battery string using a vacuum gripping method, achieving precise positioning and gripping while effectively preventing damage to the battery string due to mechanical clamping.

[0033] Furthermore, multiple suction nozzles 112 are provided. Optionally, eight suction nozzles 112 are provided, arranged in an array. In this way, multiple suction nozzles 112 can securely pick up the battery string, preventing the battery string from falling off and breaking.

[0034] In one embodiment, the material handling mechanism 11 further includes a material handling robotic arm, with a mounting base 111 disposed on the material handling robotic arm. Since the defect detection mechanism 13 is disposed on the material handling robotic arm via the mounting base 111, the movement of the material handling robotic arm can drive the defect detection mechanism 13 to rotate, thereby better photographing the battery string.

[0035] In one embodiment, see Figure 1 The power-on fixture 12 includes a first power-on fixture 121 and a second power-on fixture 122. The first power-on fixture 121 is located on the side of the second power-on fixture 122. Both the first power-on fixture 121 and the second power-on fixture 122 are used to power on the battery string.

[0036] Further, see Figure 1 The first power-on fixture 121 includes a first power-on component 1211 and a second power-on component 1212. The first power-on component 1211 and the second power-on component 1212 are spaced apart along a first direction of the material handling mechanism 11, and the first power-on component 1211 is electrically connected to the second power-on component 1212 via wires. Here, X represents the first direction. Optionally, the first power-on component 1211 and the second power-on component 1212 are respectively located at opposite ends of the mounting base 111 in the first direction.

[0037] Further, see Figure 1The second power-on fixture 122 includes a third power-on component 1221 and a fourth power-on component 1222. The third power-on component 1221 is located on one side of the first power-on component 1211 in the first direction. Specifically, the third power-on component 1221 is located on the side of the first power-on component 1211 opposite to the second power-on component 1212, or on the side of the first power-on component 1211 facing the second power-on component 1212. The fourth power-on component 1222 is located on one side of the second power-on component 1212 in the first direction. Specifically, the fourth power-on component 1222 is located on the side of the second power-on component 1212 opposite to the first power-on component 1211, or on the side of the second power-on component 1212 facing the first power-on component 1211. The third power-on component 1221 is electrically connected to the fourth power-on component 1222 via a wire.

[0038] After the battery string is conveyed to the material handling and inspection station, both the first power-on component 1211 and the second power-on component 1212 contact the solder strips of the battery string, enabling the first power-on fixture 121 to power on the battery string. If the battery string shifts at the material handling and inspection station, the third power-on component 1221 and the fourth power-on component 1222 can also contact the solder strips of the battery string, allowing the second power-on fixture 122 to power on the battery string. This ensures the reliability of the battery string's power-on.

[0039] Optionally, the first energizing component 1211, the second energizing component 1212, the third energizing component 1221, and the fourth energizing component 1222 are all strip-shaped, and all four extend along the second direction of the feeding mechanism 11. The first direction is perpendicular to the second direction, and the second direction is represented by Y.

[0040] Optionally, the first power-on component 1211, the second power-on component 1212, the third power-on component 1221 and the fourth power-on component 1222 are all provided in multiple and are all granular, and the multiple first power-on components 1211, the multiple second power-on components 1212, the multiple third power-on components 1221 and the multiple fourth power-on components 1222 are all spaced apart along the second direction.

[0041] In one embodiment, see Figure 1 The second power-on fixture 122 is longer in the second direction than the first power-on fixture 121 in the second direction. Optionally, the second power-on fixture 122 is 1cm to 2cm longer than the first power-on fixture 121. With this configuration, when the battery string shifts left or right at the material handling and detection station, the shifted battery string can contact the second power-on fixture 122. In this way, the second power-on fixture 122 can work in conjunction with the first power-on fixture 121 to power on the battery string, ensuring reliable power-on.

[0042] Specifically, the length of the first power-on component 1211 is equal to the length of the second power-on component 1212, and the lengths of the third power-on component 1221 and the fourth power-on component 1222 are equal. The lengths of the first power-on component 1211 and the second power-on component 1212 are both less than the lengths of the third power-on component 1221 and the fourth power-on component 1222.

[0043] In one embodiment, see Figure 2 The height of the second electrical fixture 122 is greater than the height of the first electrical fixture 121. It should be noted that the height of the first electrical fixture 121 refers to the distance between the side of the first electrical fixture 121 facing away from the mounting base 111 and the mounting base 111, while the height of the second electrical fixture 122 refers to the distance between the side of the second electrical fixture 122 facing away from the mounting base 111 and the mounting base 111. With this configuration, when the picking mechanism 11 picks up the battery string, the pressure of the second electrical fixture 122 on the solder strip is greater than the pressure of the first electrical fixture 121. This prevents poor contact between the first electrical fixture 121 and the solder strip, which could lead to black string formation and misjudgment, thus improving the reliability of the detection.

[0044] In one embodiment, the conveying device is equipped with a support member located at the material handling and inspection station. The support member is used to support the battery string. When the material handling robotic arm pushes down the power-on fixture 12, the support member can support the welding strips at both ends of the battery string, ensuring that the power-on fixture 12 can make good contact with the welding strips of the battery string, thereby ensuring that the battery string can be powered on smoothly.

[0045] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0046] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A pick-up detection device (10), characterized in that include: Material picking mechanism (11), the material picking mechanism (11) is used to pick up battery strings; Power-on fixture (12), which is provided on the material handling mechanism (11), is used to power on the battery string; as well as A defect detection mechanism (13) is provided on the material handling mechanism (11) and is used to collect images of the battery string.

2. The material taking detection device (10) according to claim 1, characterized in that The defect detection mechanism (13) includes an EL camera, which is used to take pictures of the battery string after it is powered on; And / or, the defect detection mechanism (13) includes an appearance inspection camera for taking pictures of the battery string.

3. The material taking detection device (10) according to claim 1, characterized in that The power-on fixture (12) includes a first power-on fixture (121) and a second power-on fixture (122). The first power-on fixture (121) is located on the side of the second power-on fixture (122). Both the first power-on fixture (121) and the second power-on fixture (122) are used to power on the battery string.

4. The material taking detection device (10) according to claim 3, characterized in that The first power-on fixture (121) includes a first power-on component (1211) and a second power-on component (1212) electrically connected to the first power-on component (1211). The first power-on component (1211) and the second power-on component (1212) are spaced apart along a first direction of the material handling mechanism (11). The second power-on fixture (122) includes a third power-on component (1221) and a fourth power-on component (1222) electrically connected to the third power-on component (1221). The third power-on component (1221) is located on one side of the first power-on component (1211) in the first direction, and the fourth power-on component (1222) is located on one side of the second power-on component (1212) in the first direction. The first power-on component (1211), the second power-on component (1212), the third power-on component (1221), and the fourth power-on component (1222) all extend along the second direction of the material handling mechanism (11). The first direction intersects with the second direction.

5. The material taking detection device (10) according to claim 3, characterized in that The length of the second electrical fixture (122) in the second direction of the material handling mechanism (11) is greater than the length of the first electrical fixture (121) in the second direction of the material handling mechanism (11).

6. The material taking detection device (10) according to claim 3, characterized in that The height of the second power-on fixture (122) is greater than the height of the first power-on fixture (121).

7. The material taking detection device (10) according to any one of claims 1 to 6, characterized in that The material handling mechanism (11) includes a mounting base (111) and a suction nozzle (112). The suction nozzle (112), the electrical fixture (12), and the defect detection mechanism (13) are all located on the mounting base (111).

8. The material taking detection device (10) according to claim 7, characterized in that The material handling mechanism (11) further includes a material handling robotic arm, and the mounting base (111) is disposed on the material handling robotic arm.

9. A stringer, characterized by, include: Material handling and inspection station; A conveying device for conveying battery strings to the material handling and testing station; as well as The material taking detection device (10) according to any one of claims 1 to 8, wherein the material taking detection device (10) picks up and detects the battery string at the material taking detection station.

10. The stringer welding machine of claim 9, wherein, The conveying device is provided with a support, the support is located at the material taking detection station, and the support is used for supporting the battery string.

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