Rotary feeding mechanism of solar cell series welding machine

Abstract

The invention belongs to the technical field of battery piece processing, and discloses and relates to a solar battery piece series welding machine rotary feeding mechanism which comprises a supporting device, a rotating device, a hoisting sliding contact device and a plurality of adsorption devices. A rotating disc assembly of the rotating device is connected with a driving motor in the supporting device and is driven by the motor to rotate, and a connecting column assembly is fixed to one side of the rotating disc assembly, movably and electrically connected with the hoisting sliding contact device and synchronously rotates in the rotating disc assembly along with rotation of the rotating disc; the multiple adsorption devices are distributed at one end of the rotary disc assembly at intervals and are responsible for sucking the to-be-welded battery pieces and conveying the to-be-welded battery pieces to a welding area through rotation of the rotary disc. According to the mechanism, a 360-degree infinite circulation feeding mode is adopted, a long conveying channel needed by linear feeding is abandoned, the field space utilization rate is greatly increased, the field cost is effectively reduced, meanwhile, the battery piece feeding time interval is greatly shortened, the unit time feeding speed is remarkably increased, and the production efficiency of the whole series welding machine is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of solar cell processing, and particularly relates to a rotating feeding mechanism for a solar cell string welder. Background Art

[0002] At present, with the continuous heating up of the solar photovoltaic industry, the string welder plays a crucial role in component production. However, the current string welders on the market have obvious limitations. They all adopt a linear feeding method, which brings many problems. On the one hand, the linear feeding makes the equipment layout long and narrow, occupying a large amount of factory space and increasing the site cost of enterprises. On the other hand, its feeding speed is slow because the solar cells can only move one by one in a linear order. Slightly increasing the speed may cause the solar cells to be disordered, collided and scratched, affecting the welding accuracy and reducing the product qualification rate, making it difficult to improve the production efficiency and unable to meet the rapid development needs of the industry. Summary of the Invention

[0003] The main object of the present invention is to provide a rotating feeding mechanism for a solar cell string welder, aiming to solve the technical problems that the existing string welder adopts a linear feeding method, resulting in a large floor area of the whole equipment and a slow feeding speed.

[0004] To achieve the above object of the invention, the present invention provides a rotating feeding mechanism for a solar cell string welder, including a support device, a rotating device, a hoisting sliding contact device and a plurality of adsorption devices; The rotating device includes a turntable assembly, the turntable assembly is arranged corresponding to the support device, and the turntable assembly is connected to a driving motor arranged in the support device, and the driving motor is used to drive the turntable assembly to rotate; The rotating device further includes a connecting column assembly, the connecting column assembly is fixedly connected to a side of the turntable assembly away from the support device, the hoisting sliding contact device is movably connected to an end of the connecting column assembly away from the turntable assembly, and the hoisting sliding contact device is electrically connected to the connecting column assembly, and the rotation of the turntable assembly drives the connecting column assembly to rotate synchronously in the hoisting sliding contact device; A plurality of the adsorption devices are arranged at intervals at an end of the turntable assembly away from the connecting column assembly, and the adsorption devices are used to suck the solar cells to be welded and place the solar cells to be welded in the welding area according to the rotation of the turntable assembly.

[0005] Further, the support device includes a support cross beam, a first support seat and a second support seat, and the first support seat and the second support seat are respectively arranged at two ends of the support cross beam in the length direction; The first support base includes a first support portion, a second support portion, and a reinforcing portion. The second support portion and the reinforcing portion are parallel to each other and are respectively and perpendicularly connected to the first support portion. The second support portion and the reinforcing portion are respectively connected to adjacent sides of the first support portion, and the top of the first support portion is in the same plane, and is fixedly connected to the bottom of the support cross beam; The second support base includes a third support portion, a fourth support portion, and a plurality of fifth support portions. The fifth support portions are perpendicularly connected to the fourth support portion. The third support portion is connected to one end of the fifth support portion away from the fourth support portion. The third support portion and the fourth support portion are parallel to each other, and one end of the third support portion is fixedly connected to the top of the support cross beam.

[0006] Further, the support device further includes a motor fixing device and an auxiliary support device; The motor fixing device includes a top plate, a first side plate, and a second side plate. There are two first side plates and two second side plates, which are arranged oppositely. The second side plates are arranged on the support cross beam. The top plate is arranged at one end of the second side plate away from the support cross beam. The two first side plates are connected between the two second side plates. The first side plates are connected to adjacent sides of the second side plates, and respectively form a first interval and a second interval with the support cross beam and the top plate. The distance of the first interval is greater than the distance of the second interval; The auxiliary support device is arranged on the side of the top plate away from the second side plate, and the auxiliary support device is communicated with the top plate. The auxiliary support device is used for sliding connection with the turntable assembly to provide an auxiliary support function.

[0007] Further, the turntable assembly includes a turntable main body and a plurality of turntable extension portions. The turntable main body is arranged between the connection column assembly and the support device. The turntable extension portions are arranged on the side of the turntable main body. The turntable extension portions are used for connecting the adsorption device. An arc-shaped specified interval is formed between adjacent turntable extension portions. The turntable main body and the turntable extension portions are integrally formed.

[0008] Further, a plurality of arc-shaped weight-reducing holes are arranged at intervals on the turntable main body. The arc-shaped weight-reducing holes are arranged opposite to the arc-shaped specified intervals. The centers of the arc-shaped weight-reducing holes and the centers of the arc-shaped specified intervals are the same center. The sides of the arc-shaped weight-reducing holes and the sides of the arc-shaped specified intervals are on the same radius. The arc length of the arc-shaped specified interval is greater than the arc length of the arc-shaped weight-reducing hole.

[0009] Further, the adsorption device includes a cylinder support assembly and a cylinder drive assembly; The cylinder support assembly includes a cylinder support plate and a fixing plate. The cylinder support plate is fixedly connected to the side of the extension of the turntable. Two adjacent sides of the fixing plate are perpendicularly connected to the cylinder support plate and the extension of the turntable respectively. A positioning groove is provided on the side of the cylinder support plate away from the fixing plate. The cylinder driving assembly is located in the positioning groove and connected to the cylinder support plate.

[0010] Further, the adsorption device further includes a plurality of negative pressure suction nozzles. The cylinder driving assembly includes a cylinder body and an adsorption support plate. The cylinder body is connected to the cylinder support plate. The adsorption support plate is connected to the cylinder body through a driving connection plate. The cylinder body is used to drive the driving connection plate to move up and down and drive the adsorption support plate to move synchronously at the same time. A plurality of strip holes are provided on the adsorption support plate. The negative pressure suction nozzles are adjustably arranged in the strip holes and connected to the adsorption support plate.

[0011] Further, the adsorption support plate includes a support plate body, and reinforcing ribs are formed by extending in a direction perpendicular to the support plate body, and the reinforcing ribs extend along the entire length direction of the support plate body.

[0012] Further, the adsorption device further includes a pressing plate assembly. The pressing plate assembly includes a pressing plate support, a pressing plate connecting piece and a pressing plate body. The pressing plate support is fixedly connected to one end of the adsorption support plate. The pressing plate connecting piece is adjustably arranged on the pressing plate support. The pressing plate body is arranged at the end of the pressing plate connecting piece away from the pressing plate support. The pressing plate body is used to press the clamping piece of the battery cell to be welded.

[0013] Further, the connecting column assembly includes a current collector and a connecting column body with a hollow structure. The hoisting sliding contact device includes a hoisting plate and an annular sliding contact wire; The connecting column body is fixedly connected to the turntable body. The current collector is arranged at the end of the connecting column body away from the turntable body. The hoisting plate is connected to the annular sliding contact wire. The hoisting plate is fixedly connected to an external device. The annular sliding contact wire is electrically connected to the current collector. The annular sliding contact wire is used to transmit electric energy to the current collector.

[0014] Beneficial effects: A rotating feeding mechanism for a solar cell string welding machine according to the present invention includes a support device, a rotating device, a hoisting sliding contact device, and a plurality of adsorption devices; the rotating device includes a turntable assembly, the turntable assembly is arranged corresponding to the support device, and the turntable assembly is connected to a driving motor arranged in the support device, and the driving motor is used to drive the turntable assembly to rotate; the rotating device further includes a connecting column assembly, the connecting column assembly is fixedly connected to a side of the turntable assembly away from the support device, the hoisting sliding contact device is movably connected to an end of the connecting column assembly away from the turntable assembly, and the hoisting sliding contact device is electrically connected to the connecting column assembly, and the rotation of the turntable assembly drives the connecting column assembly to rotate synchronously in the hoisting sliding contact device; a plurality of the adsorption devices are arranged at intervals at an end of the turntable assembly away from the connecting column assembly, and the adsorption devices are used to suck the battery wafers to be welded and place the battery wafers to be welded in the welding area according to the rotation of the turntable assembly. Through the rotating device for 360-degree infinite loop feeding, there is no need to reserve a long transmission channel space like linear feeding, improving the space utilization rate of the production site and reducing the site cost; at the same time, the feeding time interval of the battery wafers is greatly shortened, significantly improving the feeding speed per unit time, and thus enhancing the production efficiency of the entire string welding machine. Description of the Drawings

[0015] Figure 1 Schematic diagram of a rotating feeding mechanism for a solar cell string welding machine according to an embodiment of the present invention; Figure 2 Schematic diagram of a support device according to an embodiment of the present invention; Figure 3 For an embodiment of the present invention Figure 1 Partial schematic diagram; Figure 4 For an embodiment of the present invention Figure 3 Partial enlarged view at A; Figure 5 Schematic diagram of a cylinder support assembly according to an embodiment of the present invention.

[0016] Wherein: 1, support device; 2, rotating device; 3, hoisting sliding contact device; 4, adsorption device; 5, battery wafers to be welded; 10, support cross beam; 11, first support seat; 12, second support seat; 14, auxiliary support device; 110, first support part; 111, second support part; 112, strengthening part; 120, third support part; 121, fourth support part; 123, fifth support part; 130. Top plate; 131. First side plate; 132. Second side plate; 133. First interval; 134. Second interval; 20. Turntable assembly; 21. Connecting column assembly; 201. Turntable body; 202. Turntable extension; 203. Arc-shaped specified interval; 204. Arc-shaped weight-reducing hole; 210. Current collector; 211. Connecting column body; 30. Hoisting plate; 31. Annular sliding contact wire; 40. Cylinder support assembly; 41. Cylinder drive assembly; 42. Negative pressure suction nozzle; 43. Pressing plate assembly; 401. Cylinder support plate; 402. Fixed plate; 403. Positioning groove; 410. Cylinder body; 411. Adsorption support plate; 412. Drive connecting plate; 413. Strip-shaped hole; 4110. Support plate body; 4111. Reinforcing rib; 430. Pressing plate support; 431. Pressing plate connecting piece; 432. Pressing plate body.

[0017] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0018] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. It can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0022] Referring to Figures 1 - 5 , this embodiment provides a rotating feeding mechanism for a solar cell string welding machine, which includes a support device 1, a rotating device 2, a hoisting sliding contact device 3, and a plurality of adsorption devices 4; The rotating device 2 includes a turntable assembly 20, the turntable assembly 20 is arranged corresponding to the support device 1, and the turntable assembly 20 is connected to a driving motor arranged in the support device 1, and the driving motor is used to drive the turntable assembly 20 to rotate; The rotating device 2 further includes a connecting column assembly 21, the connecting column assembly 21 is fixedly connected to the side of the turntable assembly 20 away from the support device 1, the hoisting sliding contact device 3 is movably connected to the end of the connecting column assembly 21 away from the turntable assembly 20, and the hoisting sliding contact device 3 is electrically connected to the connecting column assembly 21, and the rotation of the turntable assembly 20 drives the connecting column assembly 21 to rotate synchronously within the hoisting sliding contact device 3; A plurality of the adsorption devices 4 are arranged at intervals at the end of the turntable assembly 20 away from the connecting column assembly 21, and the adsorption device 4 is used to suck the battery cells 5 to be welded and place the battery cells 5 to be welded in the welding area according to the rotation of the turntable assembly 20.

[0023] In the above embodiments, the rotating feeding mechanism of the solar cell string welder mainly includes a support device 1, a rotating device 2, a hoisting sliding contact device 3, and a plurality of adsorption devices 4. The support device 1 is the gantry framework of the entire system. It not only provides a stable installation foundation for other components, but also has a driving motor inside. Through the transmission system, it is connected to the turntable assembly 20 in the rotating device 2, thereby realizing precise rotation control of the turntable assembly 20. The core of the rotating device 2 is the turntable assembly 20, which is a disc-shaped structure and can rotate 360 degrees around the central axis. The rotating device 2 also includes a connecting column assembly 21. The connecting column assembly 21 is fixedly connected to the side of the turntable assembly 20 away from the support device 1. The connecting column assembly 21 is movably connected to the hoisting sliding contact device 3, so that when the turntable assembly 20 rotates, the connecting column assembly 21 can rotate synchronously within the hoisting sliding contact device 3, ensuring continuous power supply. A plurality of adsorption devices 4 are evenly distributed on the outer edge of the turntable assembly 20. The adsorption devices 4 are used to suck the battery wafers to be welded 5. The battery wafers to be welded 5 include, but are not limited to, polycrystalline and single-crystalline battery wafers. Each adsorption device 4 is driven by a cylinder and can move in the vertical direction to suck or release the battery wafers to be welded 5. When the turntable assembly 20 rotates, the adsorption devices 4 move accordingly, and the sucked battery wafers are accurately placed in the welding area. Therefore, through the 360-degree infinite loop feeding of the rotating device 2, there is no need to reserve a long transmission channel space like linear feeding, which improves the space utilization rate of the production site and reduces the site cost. At the same time, it greatly shortens the feeding time interval of the battery wafers, significantly improves the feeding speed per unit time, and thus improves the production efficiency of the entire string welder.

[0024] During operation, the driving motor is started, and then directly drives the turntable assembly 20 to start rotating through the motor output shaft (or drives the turntable assembly 20 to start rotating through the transmission system). At this time, the connecting column assembly 21 rotates synchronously with the turntable assembly 20 and maintains electrical connection within the hoisting sliding contact device 3 to ensure continuous power supply. Then, the adsorption devices 4 located on the outer edge of the turntable assembly 20 act in sequence according to the preset program. The cylinder drives the adsorption device 4 to move downward, and the negative pressure suction nozzle 42 sucks the battery wafer to be welded. After the adsorption is completed, the adsorption device 4 gradually approaches the welding area as the turntable assembly 20 rotates. When it reaches the designated position, the adsorption device 4 is controlled again, and the cylinder drives it to move upward to release the battery wafer and place it accurately on the welding platform. Subsequently, the turntable continues to rotate, and the next adsorption device 4 repeats the above process to achieve continuous feeding operation.

[0025] Refer to Figures 1 - 2 , in one embodiment, the support device 1 includes a support cross beam 10, a first support seat 11, and a second support seat 12. The first support seat 11 and the second support seat 12 are respectively arranged at both ends of the support cross beam 10 in the length direction; The first support base 11 includes a first support portion 110, a second support portion 111, and a reinforcement portion 112. The second support portion 111 and the reinforcement portion 112 are parallel to each other and are respectively and perpendicularly connected to the first support portion 110. The second support portion 111 and the reinforcement portion 112 are respectively connected to adjacent sides of the first support portion 110, and the top of the first support portion 110 is located in the same plane and is fixedly connected to the bottom of the support crossbeam 10; The second support base 12 includes a third support portion 120, a fourth support portion 121, and a plurality of fifth support portions 123. The fifth support portions 123 are perpendicularly connected to the fourth support portion 121. The third support portion 120 is connected to one end of the fifth support portions 123 away from the fourth support portion 121. The third support portion 120 and the fourth support portion 121 are parallel to each other, and one end of the third support portion 120 is fixedly connected to the top of the support crossbeam 10.

[0026] In the above embodiment, the support device 1 is composed of a support crossbeam 10, a first support base 11, and a second support base 12. The support crossbeam 10 is the main part of the entire support device 1 and plays a key role in connecting and carrying other components. It extends along the length direction, and the first support base 11 and the second support base 12 are respectively installed at both ends; The first support base 11 is located at one end of the support crossbeam 10 and is mainly responsible for supporting the entire system from the bottom. It consists of three main parts: a first support portion 110, a second support portion 111, and a reinforcement portion 112. Among them, the first support portion 110 is vertically fixed to the bottom of the support crossbeam 10 to provide the main supporting force. The second support portion 111 and the reinforcement portion 112 are parallel to each other and are both perpendicularly connected to the first support portion 110. The second support portion 111 is connected to an adjacent side of the first support portion 110, the reinforcement portion 112 is connected to an adjacent side of the first support portion 110, and the top of the first support portion 110 are located in the same plane, so that the three are fixedly connected to the bottom of the support crossbeam 10. A certain distance is maintained between the second support portion 111 and the reinforcement portion 112, and a through hole is provided on the second support portion 111, which reduces the use of materials while ensuring the overall support rigidity.

[0027] Further, the second support base 12 is located at the other end of the support crossbeam 10 and is mainly responsible for suspending and supporting the entire system from the top. It is composed of a third support portion 120, a fourth support portion 121, and a plurality of fifth support portions 123. The fourth support portion 121 serves as the bottom support of the second support base 12. A plurality of fifth support portions 123 are vertically connected to the fourth support portion 121. The third support portion 120 is connected to the end of the fifth support portion 123 away from the fourth support portion 121, is parallel to the fourth support portion 121, and one end thereof is fixedly connected to the top of the support crossbeam 10. The length of the third support portion 120 is greater than that of the fourth support portion 121, and the extended portion is directly connected to the top of the support crossbeam 10, forming a top suspension support structure, providing a main suspension point, enabling the second support base 12 to effectively share the weight of the support crossbeam 10. The first support base 11 bears a part of the downward pressure generated by the weight of the object, and the second support base 12 bears a part of the tensile force by means of suspension support, so that the support crossbeam 10 is subjected to forces in the up and down directions in the vertical direction. The combined action of these forces enables the support crossbeam 10 to bear heavier objects, improving the stability and load-bearing capacity of the entire support device 1.

[0028] Referring to Figures 1 - 2 , in one embodiment, the support device 1 further includes a motor fixing device and an auxiliary support device 14; The motor fixing device includes a top plate 130, a first side plate 131, and a second side plate 132. There are two first side plates 131 and two second side plates 132 which are oppositely arranged. The second side plate 132 is disposed on the support crossbeam 10. The top plate 130 is disposed at the end of the second side plate 132 away from the support crossbeam 10. The two first side plates 131 are connected between the two second side plates 132, and the first side plates 131 are connected to the adjacent sides of the second side plates 132 to form a first gap 133 and a second gap 134 with the support crossbeam 10 and the top plate 130 respectively, and the distance of the first gap 133 is greater than the distance of the second gap 134; The auxiliary support device 14 is disposed on the side of the top plate 130 away from the second side plate 132, and the auxiliary support device 14 is communicated with the top plate 130. The auxiliary support device 14 is used for sliding connection with the turntable assembly 20 to provide an auxiliary support function.

[0029] In the above embodiment, the support device 1 further includes a motor fixing device and an auxiliary support device 14. The motor fixing device is composed of a top plate 130, a first side plate 131 and a second side plate 132, and encloses a space for placing a driving motor (not shown in the figure). There are two first side plates 131 and two second side plates 132, and every two first side plates 131 and second side plates 132 are oppositely arranged respectively; the second side plate 132 is directly fixed on the support cross beam 10, while the top plate 130 is located at one end of the second side plate 132 away from the support cross beam 10. At the same time, through holes are provided on the top plate 130 for the output shaft of the motor to pass through and be connected to the turntable assembly 20. The two first side plates 131 are connected between the two second side plates 132. The first side plate 131 and the support cross beam 10 form a first interval 133, and the first side plate 131 and the top plate 130 form a second interval 134. The distance of the first interval 133 is greater than that of the second interval 134, so that the heat at the bottom of the driving motor can be quickly dissipated through the larger first interval 133, and the second interval 134 can dissipate the heat at the top of the driving motor.

[0030] Furthermore, the auxiliary support device 14 is arranged on the side of the top plate 130 away from the second side plate 132 and is communicated with the top plate 130. The main function of the auxiliary support device 14 is to provide additional sliding support for the turntable assembly 20 to ensure its stability during rotation. At the same time, a turntable auxiliary support device (not shown in the figure) corresponding to the auxiliary support device 14 is also arranged at the bottom of the turntable body 201 of the turntable assembly 20. According to specific application scenarios, the combined auxiliary support device can be realized in various ways, such as air bearing support, hydrostatic guide rail support, tapered roller bearing support or magnetic coupler auxiliary support, etc., to ensure the stability and accuracy of the turntable assembly 20 during high-speed rotation. Or the auxiliary support device 14 can also be not used, and the output shaft of the driving motor is directly connected to the turntable assembly 20. Through the combined action of the motor fixing device and the auxiliary support device, the stable installation and efficient heat dissipation of the driving motor are ensured, and at the same time, reliable support is provided for the turntable assembly 20, ensuring the smooth operation of the entire system.

[0031] Refer to Figures 1 - 3 , in an embodiment, the turntable assembly 20 includes a turntable body 201 and a plurality of turntable extension parts 202. The turntable body 201 is arranged between the connecting column assembly 21 and the support device 1. The turntable extension parts 202 are arranged on the side of the turntable body 201. The turntable extension parts 202 are used to connect the adsorption device 4, and an arc-shaped specified interval 203 is formed between adjacent turntable extension parts 202, and the turntable body 201 and the turntable extension parts 202 are integral parts.

[0032] In the above embodiment, the turntable assembly 20 includes a turntable main body 201 and a plurality of turntable extension parts 202. The turntable main body 201 is arranged between the connecting column assembly 21 and the supporting device 1, such that the connecting column assembly 21 is connected to the upper surface of the turntable main body 201, and the supporting device 1 is located on the lower surface of the turntable main body 201. The driving motor in the supporting device 1 is connected to the bottom of the turntable main body 201. The turntable extension parts 202 are a plurality of arm-shaped structures extending outward from the side of the turntable main body 201. They are evenly distributed around the turntable main body 201, forming an annular layout. The end of each turntable extension part 202 is connected to the adsorption device 4, and a certain arc-shaped specified interval 203 is formed between adjacent turntable extension parts 202. The arc-shaped specified interval 203 provides sufficient operating space for the adsorption device 4, and also avoids interference between adjacent adsorption devices 4, ensuring the precise conveyance of the battery wafers. Moreover, the turntable main body 201 and the turntable extension parts 202 are an integral part, ensuring the structural strength and rigidity of the entire turntable assembly 20, and avoiding problems such as connection loosening or deformation that may be caused by a split design.

[0033] Furthermore, a plurality of arc-shaped weight-reducing holes 204 are provided on the turntable main body 201. These weight-reducing holes are evenly distributed in the middle area of the turntable main body 201. The arc-shaped weight-reducing holes 204 are arranged opposite to the arc-shaped specified interval 203, and the centers of the arc-shaped weight-reducing holes 204 and the arc-shaped specified interval 203 are the same center. The side edges of the arc-shaped weight-reducing holes 204 and the side edges of the arc-shaped specified interval 203 are located on the same radius, that is, the arc-shaped weight-reducing holes 204 and the arc-shaped specified interval 203 are arranged in the same radial direction, ensuring that no eccentric torque is generated when the turntable rotates at high speed, and avoiding vibration or shaking caused by uneven mass distribution. Each pair of opposite side edges of the arc-shaped weight-reducing holes 204 and the arc-shaped specified interval 203 are respectively on two radius lines. At the same time, the arc length of the arc-shaped specified interval 203 is greater than the arc length of the arc-shaped weight-reducing holes 204. Through the arc-shaped weight-reducing holes 204 and the arc-shaped specified interval 203, while not affecting their mechanical properties, the use of materials is significantly reduced, the load on the driving motor is reduced, and thus the rotation efficiency is improved.

[0034] Referring to Figures 1 - 5 , in one embodiment, the adsorption device 4 includes a cylinder support assembly 40 and a cylinder drive assembly 41; The cylinder support assembly 40 includes a cylinder support plate 401 and a fixing plate 402. The cylinder support plate 401 is fixedly connected to the side of the turntable extension part 202. Two adjacent side edges of the fixing plate 402 are respectively perpendicularly connected to the cylinder support plate 401 and the turntable extension part 202. A positioning groove 403 is provided on the side of the cylinder support plate 401 away from the fixing plate 402, and the cylinder drive assembly 41 is located in the positioning groove 403 and connected to the cylinder support plate 401.

[0035] In the above embodiments, the adsorption device 4 is responsible for sucking and releasing the battery wafers to be welded, and mainly consists of a cylinder support assembly 40 and a cylinder drive assembly 41. The cylinder support assembly 40 includes a cylinder support plate 401 and a fixing plate 402. The cylinder support plate 401 is a solid flat plate structure, which is fixedly connected to the side of the turntable extension 202 by bolts or other fasteners. The function of the cylinder support plate 401 is to provide an installation platform for the cylinder drive assembly 41 and ensure the smooth movement of its vertical movement. A positioning groove 403 is provided on the side of the cylinder support plate 401 away from the fixing plate 402. The positioning groove 403 is used to accommodate the cylinder drive assembly 41 to ensure that it does not shift or shake during operation. The two adjacent sides of the fixing plate 402 are perpendicularly connected to the cylinder support plate 401 and the turntable extension 202 respectively, forming a stable triangular structure, which not only enhances the overall rigidity of the cylinder support assembly 40, but also ensures the firm connection between the cylinder support plate 401 and the turntable extension 202, preventing loosening or deformation during high-speed rotation.

[0036] Refer to Figures 1 - 4 As shown in [reference figure], in one embodiment, the adsorption device 4 further includes a plurality of negative pressure suction nozzles 42. The cylinder drive assembly 41 includes a cylinder body 410 and an adsorption support plate 411. The cylinder body 410 is connected to the cylinder support plate 401. The adsorption support plate 411 is connected to the cylinder body 410 through a drive connection plate 412. The cylinder body 410 is used to drive the drive connection plate 412 to move up and down while driving the adsorption support plate 411 to move synchronously. A plurality of strip holes 413 are provided on the adsorption support plate 411. The negative pressure suction nozzles 42 are adjustably arranged in the strip holes 413 and connected to the adsorption support plate 411.

[0037] In the above embodiments, the adsorption device 4 further includes a plurality of negative pressure suction nozzles 42. The cylinder drive assembly 41 consists of a cylinder body 410 and an adsorption support plate 411. The cylinder body 410 is installed on the cylinder support plate 401 and drives the piston to expand and contract through air pressure, thereby driving the adsorption support plate 411 to move up and down. The adsorption support plate 411 is a long strip-shaped flat plate structure and is connected to the cylinder body 410 through a drive connection plate 412. When the cylinder body 410 drives the piston to extend or retract, the drive connection plate 412 moves accordingly, driving the adsorption support plate 411 to move synchronously up and down. A plurality of strip holes 413 are provided on the adsorption support plate 411. These strip holes 413 extend along the length direction of the adsorption support plate 411, providing installation and adjustment space for the negative pressure suction nozzles 42. Each negative pressure suction nozzle 42 can be horizontally adjusted in the strip holes 413 according to actual needs to adapt to battery wafers of different sizes and arrangements.

[0038] Furthermore, the negative pressure suction nozzle 42 is used to directly contact and suck the solar cell. Each negative pressure suction nozzle 42 consists of a suction pipe and a nozzle. The suction pipe is responsible for transmitting the negative pressure to the nozzle, and the nozzle contacts the surface of the solar cell to form a seal, ensuring that the solar cell can be firmly adsorbed. The nozzle is preferably made of rubber material because it has good flexibility and sealing performance, and can adapt to the surfaces of solar cells with different shapes and sizes. A detection device is also provided on the turntable extension 202. The detection device is used to detect whether the solar cell 5 to be welded has reached the designated position. Usually, a position sensor is used. When the adsorption device 4 moves to the predetermined position, the position sensor will detect the presence of the solar cell and send a signal to the control system to confirm that the solar cell has been correctly positioned.

[0039] Furthermore, the adsorption support plate 411 is composed of a support plate main body 4110 and reinforcing ribs 4111. The strip-shaped holes 413 are provided on the support plate main body 4110. The reinforcing ribs 4111 are the key strengthening structures of the adsorption support plate 411. They extend in a direction perpendicular to the support plate main body 4110, and there are two reinforcing ribs 4111. The two reinforcing ribs 4111 are symmetrically arranged on both sides of the support plate main body 4110. The reinforcing ribs 4111 vertically extend downward from both sides of the support plate main body 4110 to form a C-shaped structure, significantly enhancing the overall rigidity of the adsorption support plate 411.

[0040] Refer to Figures 1 - 4 , in an embodiment, the adsorption device 4 further includes a pressing plate assembly 43. The pressing plate assembly 43 includes a pressing plate support 430, a pressing plate connecting member 431, and a pressing plate body 432. The pressing plate support 430 is fixedly connected to one end of the adsorption support plate 411. The pressing plate connecting member 431 is adjustably arranged on the pressing plate support 430. The pressing plate body 432 is arranged at one end of the pressing plate connecting member 431 away from the pressing plate support 430. The pressing plate body 432 is used to press the clamping member of the solar cell 5 to be welded.

[0041] In the above embodiments, the adsorption device 4 further includes a pressing plate assembly 43. The pressing plate assembly 43 includes a pressing plate support 430, a pressing plate connecting member 431, and a pressing plate body 432. The pressing plate support 430 is fixedly connected to one end of the adsorption support plate 411. The pressing plate connecting member 431 is an adjustment component in the pressing plate assembly 43. A plurality of runway-shaped through holes are provided on the pressing plate support 430, so that the pressing plate connecting member 431 is adjustably arranged on the pressing plate support 430 to adapt to battery sheet holders of different thicknesses and shapes. The battery sheet 5 to be welded includes a battery sheet body and a holder. The battery sheet body is the photovoltaic element that actually needs to be welded, while the holder is a structure for auxiliary fixing and positioning. The pressing plate body 432 is the part that directly contacts the battery sheet 5 to be welded, and is located at the end of the pressing plate connecting member 431 away from the pressing plate support 430. The pressing plate body 432 is usually made of a soft and wear-resistant material, such as rubber or silicone. When the adsorption support plate 411 drives the pressing plate assembly 43 and the negative pressure suction nozzle 42 to move downward for adsorption, the pressing plate assembly 43 first presses on the holder to ensure the position of the battery sheet body is fixed and prevent it from moving during the adsorption process. This design ensures the accuracy of each suction action and avoids welding quality problems caused by battery sheet offset.

[0042] Referring to Figures 1 - 3 , in one embodiment, the connecting column assembly 21 includes a current collector 210 and a connecting column body 211 with a hollow structure, and the hoisting sliding contact device 3 includes a hoisting plate 30 and an annular sliding contact wire 31; The connecting column body 211 is fixedly connected to the turntable main body 201. The current collector 210 is arranged at the end of the connecting column body 211 away from the turntable main body 201. The hoisting plate 30 is connected to the annular sliding contact wire 31. The hoisting plate 30 is fixedly connected to an external device. The annular sliding contact wire 31 is electrically connected to the current collector 210, and the annular sliding contact wire 31 is used to transmit electric energy to the current collector 210.

[0043] In the above embodiments, the connecting column assembly 21 is composed of a current collector 210 and a connecting column body 211. The connecting column body 211 is a solid hollow tubular structure fixedly connected to the turntable main body 201. Its main function is to provide mechanical support and serve as a channel for power cables. The internal hollow design of the connecting column body 211 allows power cables to pass through, reducing the complexity of external wiring and improving the compactness of the system. A plurality of wire harness outlets are also formed on the connecting column body 211. These outlets are used to lead out the wire harness of the current collector 210 and connect it to the adsorption device 4 and other control devices to provide them with necessary electric energy.

[0044] Furthermore, the current collector 210 is arranged at one end of the connecting column body 211 away from the turntable body 201, and it is the electrical connection hub between the connecting column assembly 21 and the hoisting sliding contact device 3. The hoisting sliding contact device 3 includes a hoisting plate 30 and an annular sliding contact wire 31. The centers of the annular sliding contact wire 31, the connecting column assembly 21, the turntable assembly 20, and the driving motor are located on the same central axis, that is, the connecting column assembly 21 is arranged at the central position of the turntable assembly 20. The hoisting plate 30 is a solid flat plate structure, fixedly connected to an external device (such as a cross beam frame) and used to suspend and support the annular sliding contact wire 31. The design of the hoisting plate 30 takes into account the convenience and stability of installation and is usually fixed to the external device by bolts or other fasteners. Hanging it up effectively improves the space utilization rate of the entire site. The annular sliding contact wire 31 is a closed annular conductive track, electrically connected to the current collector 210, responsible for delivering electric energy from an external power source to the current collector 210, ensuring that the electric energy can be continuously transmitted during the entire rotation process and will not be interrupted due to angle changes, effectively improving the space utilization rate of the entire structure and also simplifying the power transmission path and reducing the complexity of wiring.

[0045] The above are only the preferred embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present invention.

Claims

1. A rotating feeding mechanism for a solar cell string welding machine, characterized in that: It includes a supporting device, a rotating device, a lifting sliding contact device and a plurality of adsorption devices; The rotating device comprises a turntable assembly, the turntable assembly is arranged corresponding to the supporting device, and the turntable assembly is connected to a driving motor arranged in the supporting device, and the driving motor is used to drive the turntable assembly to rotate; The rotating device also includes a connecting column assembly, the connecting column assembly is fixedly connected to a side of the turntable assembly away from the supporting device, the hanging sliding contact device is movably connected to an end of the connecting column assembly away from the turntable assembly, and the hanging sliding contact device is electrically connected to the connecting column assembly, and the rotation of the turntable assembly drives the connecting column assembly to rotate synchronously in the hanging sliding contact device; A plurality of the adsorption devices are arranged at intervals at one end of the turntable assembly away from the connecting column assembly. The adsorption devices are used to absorb the battery cells to be welded and place the battery cells to be welded in the welding area according to the rotation of the turntable assembly.

2. The rotating feeding mechanism of the solar cell string welding machine according to claim 1 is characterized in that: The support device comprises a support beam, a first support seat and a second support seat, wherein the first support seat and the second support seat are respectively arranged at two ends of the support beam in the length direction; The first support seat includes a first support portion, a second support portion and a reinforcement portion, the second support portion and the reinforcement portion are parallel to each other and are respectively vertically connected to the first support portion, the second support portion and the reinforcement portion are respectively connected to one side adjacent to the first support portion and are located in the same plane as the top of the first support portion, and are fixedly connected to the bottom of the support beam; The second support seat includes a third support portion, a fourth support portion and multiple fifth support portions, the fifth support portion is vertically connected to the fourth support portion, the third support portion is connected to one end of the fifth support portion away from the fourth support portion, and the third support portion is parallel to the fourth support portion, and one end of the third support portion is fixedly connected to the top of the supporting beam.

3. The rotating feeding mechanism of the solar cell string welding machine according to claim 2 is characterized in that: The supporting device also includes a motor fixing device and an auxiliary supporting device; The motor fixing device comprises a top plate, a first side plate and a second side plate, the first side plate and the second side plate are two and arranged opposite to each other, the second side plate is arranged on the supporting crossbeam, the top plate is arranged at an end of the second side plate away from the supporting crossbeam, the two first side plates are connected between the two second side plates, and the first side plate is connected to the adjacent two sides of the second side plate to form a first interval and a second interval with the supporting crossbeam and the top plate respectively, and the interval of the first interval is greater than the interval of the second interval; The auxiliary support device is arranged on a side of the top plate away from the second side plate, and the auxiliary support device is communicated with the top plate. The auxiliary support device is used for being slidably connected with the turntable assembly to provide auxiliary support.

4. The rotating feeding mechanism of the solar cell string welding machine according to claim 1 is characterized in that: The turntable assembly includes a turntable body and a plurality of turntable extensions, wherein the turntable body is arranged between the connecting column assembly and the supporting device, and the turntable extensions are arranged on the sides of the turntable body. The turntable extensions are used to connect the adsorption device, and an arc-shaped designated interval is formed between adjacent turntable extensions, and the turntable body and the turntable extensions are an integral part.

5. The rotating feeding mechanism of the solar cell string welding machine according to claim 4, characterized in that: The turntable body is provided with a plurality of arc-shaped weight-reducing holes arranged at intervals. The arc-shaped weight-reducing holes are arranged opposite to the arc-shaped designated intervals, and the center of the arc-shaped weight-reducing holes is the same as the center of the arc-shaped designated intervals. The side edges of the arc-shaped weight-reducing holes and the side edges of the arc-shaped designated intervals are located on the same radius, and the arc length of the arc-shaped designated intervals is greater than the arc length of the arc-shaped weight-reducing holes.

6. The rotating feeding mechanism of the solar cell string welding machine according to claim 4, characterized in that: The adsorption device includes a cylinder support assembly and a cylinder drive assembly; The cylinder support assembly includes a cylinder support plate and a fixed plate, the cylinder support plate is fixedly connected to the side of the turntable extension, the adjacent two side edges of the fixed plate are respectively vertically connected to the cylinder support plate and the turntable extension, a positioning groove is provided on the side of the cylinder support plate away from the fixed plate, and the cylinder drive assembly is located in the positioning groove and connected to the cylinder support plate.

7. The rotating feeding mechanism of the solar cell string welding machine according to claim 6, characterized in that: The adsorption device also includes a plurality of negative pressure suction nozzles, and the cylinder driving assembly includes a cylinder body and an adsorption support plate, wherein the cylinder body is connected to the cylinder support plate, and the adsorption support plate is connected to the cylinder body through a driving connecting plate, and the cylinder body is used to drive the driving connecting plate to move up and down while driving the adsorption support plate to move synchronously, and a plurality of strip holes are arranged on the adsorption support plate, and the negative pressure suction nozzle is adjustably arranged in the strip holes and connected to the adsorption support plate.

8. The rotating feeding mechanism of the solar cell string welding machine according to claim 7, characterized in that: The adsorption support plate includes a support plate body and reinforcing ribs extending in a direction perpendicular to the support plate body, and the reinforcing ribs extend along the entire length direction of the support plate body.

9. The rotating feeding mechanism of the solar cell string welding machine according to claim 7, characterized in that: The adsorption device also includes a pressure plate assembly, which includes a pressure plate support, a pressure plate connecting member and a pressure plate body. The pressure plate support member is fixedly connected to one end of the adsorption support plate, and the pressure plate connecting member is adjustably arranged on the pressure plate support member. The pressure plate body is arranged at one end of the pressure plate connecting member away from the pressure plate support member, and the pressure plate body is used to press the clamping member of the battery cell to be welded.

10. The rotating feeding mechanism of the solar cell string welding machine according to claim 4, characterized in that: The connecting column assembly includes a current collector and a connecting column body with a hollow structure, and the lifting and trolley device includes a lifting plate and an annular trolley wire; The connecting column body is fixedly connected to the turntable body, the current collector is arranged at one end of the connecting column body away from the turntable body, the hanging plate is connected to the annular busbar, the hanging plate is fixedly connected to an external device, the annular busbar is electrically connected to the current collector, and the annular busbar is used to transmit electrical energy to the current collector.

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