Multi-station photovoltaic series welding machine

Abstract

The utility model provides a multi-station photovoltaic series welding machine, which relates to the technical field of series welding machines and comprises a machine frame, a blanking chamber is arranged on the top side of the machine frame, a welding chamber is arranged in the center of the top of the machine frame, and a recovery chamber is arranged on the right side of the top of the machine frame. The X-axis truss, the Y-axis truss and the Z-axis truss of the grabbing assembly form a three-dimensional moving structure, through sliding fit of the X-axis truss, the Y-axis truss and the Z-axis truss, the adsorption claw can be driven to flexibly move in multiple directions in the space, during working, the adsorption claw can rapidly and accurately grab battery pieces from a battery piece containing box, and the working efficiency is improved. The battery pieces are sequentially placed on the three belt transmission assemblies in the welding chamber, so that the three welding assemblies can weld the battery pieces at the same time, the multi-station parallel welding mode breaks through the limitation that in traditional single-station welding, the welding time and the feeding time are not matched, so that the efficiency is low, the working time of equipment is fully utilized, and the welding efficiency is improved. And the welding efficiency of the photovoltaic battery piece is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of string welding machine technology, and in particular to a multi-station photovoltaic string welding machine. Background Technology

[0002] Photovoltaic string welding machines are core equipment in the production process of photovoltaic modules. They are mainly used to weld photovoltaic cells together in series using welding strips to form photovoltaic cell strings. In the current booming development of the solar photovoltaic power generation industry, efficient and stable photovoltaic string welding machines are crucial for improving the production efficiency and quality of photovoltaic modules. By precisely controlling the welding temperature, pressure and time, they ensure reliable electrical connections and strong mechanical connections between cells, thereby guaranteeing the power generation performance and service life of photovoltaic modules.

[0003] The existing multi-station photovoltaic string welding machine has the following shortcomings:

[0004] Firstly, traditional string welding machines mostly have only one loading station and one welding station working together. Since the welding process often takes longer than the loading time, the equipment will have a lot of idle waiting time during the welding process, which cannot make full use of the working cycle and results in low overall welding efficiency of photovoltaic cells. Secondly, the heat dissipation structure of existing photovoltaic string welding machines is not perfect. During long-term continuous operation, the large amount of heat generated by welding is difficult to dissipate quickly. The heat accumulates inside the equipment, which not only affects the stability and life of the welded components, but may also lead to a decline in welding quality, such as poor solder joints and heat-induced deformation of the cells. Utility Model Content

[0005] This invention proposes a multi-station photovoltaic string welding machine, which improves the welding efficiency and equipment stability of photovoltaic cells by optimizing the feeding and welding process and heat dissipation structure, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-station photovoltaic string welding machine, comprising a frame, a feeding chamber on the top side of the frame, a welding chamber at the top center of the frame, a recycling chamber on the top right side of the frame, several heat dissipation components fixedly installed on the front side of the frame, three belt drive components fixedly installed inside the welding chamber, a welding component fixedly installed in the middle of the belt drive components, a cell placement box fixedly connected to the left side of the inner wall of the belt drive components, the cell placement box extending through the interior of the feeding chamber, and a gripping component fixedly connected to the top left side of the inner surface of the welding chamber.

[0007] Preferably, the gripping assembly includes two X-axis trusses, which are fixedly connected to the front and rear sides of the top left side of the welding chamber, respectively. A Y-axis truss is slidably connected to the opposite surfaces of the two X-axis trusses. A Z-axis truss is slidably connected to the bottom of the outer surface of the Y-axis truss, and an adsorption claw is fixedly connected to the bottom end of the Z-axis truss.

[0008] Preferably, the heat dissipation assembly includes a heat dissipation box, which is fixedly connected to the front side of the frame. A cooling groove is formed on the rear side of the interior of the heat dissipation box, and a heat exhaust groove is formed on the front side of the inner wall of the heat dissipation box.

[0009] Preferably, the heat sink has a ring array of several heat-absorbing copper plates fixedly connected inside, with the front and rear ends of the heat-absorbing copper plates penetrating into the cooling tank and the heat dissipation tank, respectively.

[0010] Preferably, air inlet screens are fixedly connected to the outer sides of the opposite surfaces of the cooling tank and the heat exhaust tank, and air outlet screens are fixedly connected to the middle of the opposite surfaces of the cooling tank and the heat exhaust tank.

[0011] Preferably, a dual-head motor is fixedly connected to the middle of the heat sink, and the output shafts at both ends of the dual-head motor are fixedly connected to guide fans. The two guide fans are respectively rotatably connected to the middle of the cooling tank and the heat dissipation tank.

[0012] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0013] 1. In this utility model, the X-axis truss, Y-axis truss, and Z-axis truss of the gripping component form a three-dimensional moving structure. Through the sliding cooperation of the three, the adsorption claw can move flexibly in multiple directions in space. During operation, the adsorption claw can quickly and accurately grab the battery cells from the battery cell placement box and place them sequentially on the three belt drive components in the welding chamber, so that the three welding components can perform welding operations on the battery cells simultaneously. This multi-station parallel welding method breaks the limitation of low efficiency caused by the mismatch between welding and feeding time in traditional single-station welding, makes full use of the equipment working time, and greatly improves the welding efficiency of photovoltaic cells.

[0014] 2. In this utility model, the heat dissipation component is driven by a dual-head motor to rotate two guide fans in the cooling tank and the heat dissipation tank respectively. The guide fan in the cooling tank promotes the circulation of hot air inside the equipment, allowing the hot air to flow fully within the cooling tank. The guide fan in the heat dissipation tank introduces external cold air into the heat dissipation tank to form an airflow. The heat-absorbing copper sheets distributed in a ring array inside the heat dissipation box have one end placed in the cooling tank to absorb the heat inside the equipment, and the other end extends to the heat dissipation tank. Utilizing the good thermal conductivity of copper, the absorbed heat is quickly transferred to the heat dissipation tank. As the cold air flows in the heat dissipation tank, the heat is quickly carried away and discharged outside the equipment. This heat dissipation structure achieves efficient heat dissipation of the photovoltaic string welder through the combination of air convection and a highly efficient heat-conducting medium, effectively preventing equipment failure due to overheating and ensuring the stable operation of the welding components and the welding quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the multi-station photovoltaic string welding machine of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the welding chamber of this utility model;

[0017] Figure 3 This is a schematic diagram of the gripping component of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the heat dissipation component of this utility model.

[0019] Legend: 1. Frame; 2. Unloading chamber; 3. Welding chamber; 31. Belt drive assembly; 32. Welding assembly; 33. Battery cell placement box; 34. Gripping assembly; 341. X-axis truss; 342. Y-axis truss; 343. Z-axis truss; 344. Adsorption claw; 4. Recycling chamber; 5. Heat dissipation assembly; 51. Heat dissipation box; 52. Cooling tank; 53. Heat exhaust tank; 54. Air inlet screen; 55. Air outlet screen; 56. Heat-absorbing copper sheet; 57. Dual-head motor; 58. Guide fan. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Please see Figure 1 and Figure 2This utility model provides a technical solution: a multi-station photovoltaic string welding machine, including a frame 1, a feeding chamber 2 on the top side of the frame 1, a welding chamber 3 at the top center of the frame 1, a recycling chamber 4 on the top right side of the frame 1, several heat dissipation components 5 fixedly installed on the front side of the frame 1, three belt drive components 31 fixedly installed inside the welding chamber 3, a welding component 32 fixedly installed in the middle of the belt drive components 31, a cell placement box 33 fixedly connected to the left side of the inner wall of the belt drive components 31, the cell placement box 33 extending through the inside of the feeding chamber 2, and a gripping component 34 fixedly connected to the top left side of the inner surface of the welding chamber 3.

[0023] like Figure 3 As shown, the gripping component 34 includes two X-axis trusses 341, which are fixedly connected to the front and rear sides of the top left side of the welding chamber 3, respectively. A Y-axis truss 342 is slidably connected to the opposite surfaces of the two X-axis trusses 341. A Z-axis truss 343 is slidably connected to the bottom of the outer surface of the Y-axis truss 342. An adsorption claw 344 is fixedly connected to the bottom end of the Z-axis truss 343. Here, by controlling the sliding of the X-axis truss 341, Y-axis truss 342 and Z-axis truss 343, the adsorption claw 344 can move freely in three-dimensional space, accurately pick up the battery cells from the battery cell placement box 33 in the unloading chamber 2 and place them in the designated positions of the three belt drive components 31 in the welding chamber 3, realizing simultaneous loading of multiple stations and improving welding efficiency.

[0024] like Figure 4 As shown, the heat dissipation assembly 5 includes a heat dissipation box 51, which is fixedly connected to the front side of the frame 1. A cooling groove 52 is opened on the rear side of the interior of the heat dissipation box 51, and a heat exhaust groove 53 is opened on the front side of the inner wall of the heat dissipation box 51. Here, the cooling groove 52 and the heat exhaust groove 53 cooperate with each other to provide a space for air circulation for heat dissipation of the equipment, so that the heat inside the equipment can be exchanged and discharged through air flow.

[0025] like Figure 4 As shown, a number of heat-absorbing copper plates 56 are fixedly connected in a ring array inside the heat sink 51. The front and rear ends of the heat-absorbing copper plates 56 extend into the interior of the cooling tank 52 and the heat dissipation tank 53, respectively. Here, taking advantage of the excellent thermal conductivity of copper, the heat-absorbing copper plates 56 can quickly absorb the heat in the cooling tank 52 and transfer the heat to the heat dissipation tank 53, thereby accelerating the conduction and diffusion of heat and improving the heat dissipation efficiency.

[0026] like Figure 4 As shown, air inlet screens 54 are fixedly connected to the outer sides of the opposite surfaces of the cooling tank 52 and the heat dissipation tank 53, and air outlet screens 55 are fixedly connected to the middle of the opposite surfaces of the cooling tank 52 and the heat dissipation tank 53. Here, the air inlet screens 54 can filter the outside air to prevent dust and other impurities from entering the equipment and ensure internal cleanliness; the air outlet screens 55 can guide the exhaust hot air to ensure that the air is discharged in an orderly manner and maintain the stable operation of the heat dissipation system.

[0027] like Figure 4 As shown, a dual-head motor 57 is fixedly connected to the middle of the heat dissipation box 51. The output shafts at both ends of the dual-head motor 57 are fixedly connected to guide fans 58. The two guide fans 58 are respectively rotatably connected to the middle of the cooling tank 52 and the heat dissipation tank 53. Here, when the equipment generates heat during operation, the dual-head motor 57 starts, driving the two guide fans 58 to rotate. The guide fans 58 in the cooling tank 52 cause the hot air inside the equipment to circulate in the cooling tank 52, making full contact with the heat-absorbing copper sheet 56. The guide fans 58 in the heat dissipation tank 53 introduce cold air from the outside into the heat dissipation tank 53. The cold air absorbs the heat transferred by the heat-absorbing copper sheet 56 during the flow process, and after becoming hot air, it is discharged outside the equipment through the air outlet 55, achieving efficient heat dissipation.

[0028] The usage method and working principle of this device are as follows: First, place the photovoltaic cells to be welded in the cell placement box 33 in the unloading chamber 2. After the equipment is started, the gripping component 34 starts to work. Through the coordinated sliding of the X-axis truss 341, Y-axis truss 342 and Z-axis truss 343, the adsorption claw 344 is moved to the top of the cell placement box 33. The adsorption claw 344 uses negative pressure to adsorb the cell. Then, according to the preset path, the cell is placed in the starting position of the three belt drive components 31 in the welding chamber 3.

[0029] The belt drive assembly 31 is started, driving the battery cell to move along the track towards the welding assembly 32. When the battery cell reaches the bottom of the welding assembly 32, the welding assembly 32 welds the battery cell to the welding strip by precisely controlling the welding temperature, pressure and time. The three welding assemblies 32 work at the same time, which greatly improves the welding efficiency. After the welding is completed, the battery string continues to move with the belt drive assembly 31 and finally enters the recycling chamber 4 for collection.

[0030] During equipment operation, welding components 32 and other parts generate a large amount of heat, at which point the heat dissipation component 5 is activated. A dual-head motor 57 drives two guide fans 58 to rotate. The guide fans 58 in the cooling tank 52 cause the hot air inside the equipment to circulate within the cooling tank 52, ensuring full contact between the hot air and the heat-absorbing copper plates 56, where the heat is absorbed. Meanwhile, the guide fans 58 in the heat exhaust tank 53 introduce cool air from the outside into the heat exhaust tank 53. As the cool air flows, it carries away the heat transferred by the heat-absorbing copper plates 56, becoming hot air before being discharged outside the equipment through the exhaust net 55. This continuous circulation achieves efficient heat dissipation for the equipment, ensuring stable operation and welding quality.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multi-station photovoltaic string welding machine, comprising a frame (1), wherein a feeding chamber (2) is provided on the top side of the frame (1), a welding chamber (3) is provided at the top center of the frame (1), and a recycling chamber (4) is provided on the top right side of the frame (1), characterized in that: Several heat dissipation components (5) are fixedly installed on the front side of the frame (1). Three belt drive components (31) are fixedly installed inside the welding chamber (3). A welding component (32) is fixedly installed in the middle of the belt drive component (31). A battery cell placement box (33) is fixedly connected to the left side of the inner wall of the belt drive component (31). The battery cell placement box (33) extends through the unloading chamber (2). A gripping component (34) is fixedly connected to the top left side of the inner surface of the welding chamber (3).

2. The multi-station photovoltaic string welding machine according to claim 1, characterized in that: The gripping component (34) includes two X-axis trusses (341), which are fixedly connected to the front and rear sides of the top left side of the welding chamber (3), respectively. A Y-axis truss (342) is slidably connected to the opposite surfaces of the two X-axis trusses (341). A Z-axis truss (343) is slidably connected to the bottom of the outer surface of the Y-axis truss (342). An adsorption claw (344) is fixedly connected to the bottom end of the Z-axis truss (343).

3. The multi-station photovoltaic string welding machine according to claim 1, characterized in that: The heat dissipation assembly (5) includes a heat dissipation box (51), which is fixedly connected to the front side of the frame (1). A cooling groove (52) is opened on the rear side of the interior of the heat dissipation box (51), and a heat exhaust groove (53) is opened on the front side of the inner wall of the heat dissipation box (51).

4. A multi-station photovoltaic string welding machine according to claim 3, characterized in that: The heat sink (51) has several heat-absorbing copper plates (56) fixedly connected in an internal annular array. The front and rear ends of the heat-absorbing copper plates (56) extend into the interior of the cooling tank (52) and the heat dissipation tank (53), respectively.

5. A multi-station photovoltaic string welding machine according to claim 3, characterized in that: An air inlet mesh (54) is fixedly connected to the outer side of the opposite side of the cooling tank (52) and the heat exhaust tank (53), and an air outlet mesh (55) is fixedly connected to the middle of the opposite side of the cooling tank (52) and the heat exhaust tank (53).

6. A multi-station photovoltaic string welding machine according to claim 3, characterized in that: A dual-head motor (57) is fixedly connected to the middle of the heat sink (51). The output shafts at both ends of the dual-head motor (57) are fixedly connected to guide fans (58). The two guide fans (58) are respectively rotatably connected to the middle of the cooling tank (52) and the heat dissipation tank (53).

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