Photovoltaic assembly welding process
Patent Information
- Application Number
- CN202611502787.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-24
- Publication Date
- 2026-11-03
AI Technical Summary
During the welding process of photovoltaic components, excessive bending or elastic stretching of the aluminum frame can cause the laminate to wobble, glue overflow can contaminate the core components, and pores can easily form during welding, affecting sealing and service life.
A specific device is used to press aluminum material into an aluminum frame. The rolled edge is located inside the frame edge and is detected by the positioning groove. After welding, hollow holes and channels are formed to ensure the limit of the laminate and apply glue. Combined with corner code sealing, the problems of shaking and overflow are solved, and the sealing and heat dissipation effects are improved.
It effectively limits the shaking of laminated components, prevents glue overflow, improves welding sealing and heat dissipation, extends service life, reduces porosity, and enhances rain and moisture barrier.
Smart Images
Figure CN123024978A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of photovoltaic component welding and assembly, and specifically to a photovoltaic component assembly welding process. Background Technology
[0002] During the assembly of photovoltaic components, the laminated parts need to be installed into the aluminum frame first, and then the aluminum frame is welded. The glass, solar cells and backsheet in the laminate are generally bonded together by high-temperature cross-linking and curing of the laminating film. Before installing the laminate into the aluminum frame, adhesive needs to be applied to the edges of the laminate to prevent rainwater and moisture from seeping into the areas between the edges of the laminate.
[0003] Currently, the welded aluminum frame is a finished product that has been directly bent. There may be cases of over-bending or elastic expansion. Expansion can cause installation defects such as shaking of the laminate. Over-bending can cause the glue applied to the edge of the laminate to overflow between the edges of the laminate when it is installed due to the pressure of the aluminum frame. The overflowing glue can easily contaminate core components such as battery cells and busbars, causing pollution, abnormal insulation, or even scrapping the entire board. Summary of the Invention
[0004] The present invention aims to provide a photovoltaic component assembly and welding process to reduce installation defects and improve the installation quality of photovoltaic components.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a photovoltaic component assembly and welding process, comprising the following steps: Step 1: Prepare a photovoltaic accessory assembly and welding device, including a base plate, a first pressure block and two bent blocks. The base plate has a through groove in the middle, and the two bent blocks are rotatably set in the through groove. Welding pressure pieces are provided on both sides of the base plate, and the welding pressure pieces are hinged to the bent blocks. A lifting frame and a driving component are fixedly connected to the first pressure block. The driving component is connected to the second pressure block, and a positioning groove is provided on the upper surface of the second pressure block. Step 2: After placing the rolled aluminum material onto the bending block, lift the frame to move the first and second pressing blocks down to cooperate with the bending block and press the aluminum material into an aluminum frame. The rolled edge is located inside one side of the aluminum frame, and one side of the rolled edge is located in the positioning groove. A gap is left between the rolled edge and the frame edge, and a hollow hole is formed at the end of the aluminum frame. Step 3: Under the pressure of the first pressure block, the second pressure block moves. Then, under the clamping action of the welded pressure piece on the bending block, the lifting frame drives the first and second pressure blocks to move upward and separate from the aluminum frame. Step 4: The welding pressure component pushes the bending block to rotate and causes the two edges of the aluminum frame to continue bending to fill the gap between the rolled edge and the frame edge, so that the rolled edge contacts the frame edge, and then the rolled edge and the frame edge are welded. Step 5: After welding the aluminum frames in pairs, install the laminate into the aluminum frames, and then continue to weld the aluminum frames in pairs to form a four-sided frame. At this time, the rolled edge position limits the laminate, and a channel is formed between the laminate and the aluminum frame. Apply glue to the edge of the laminate through the hollow hole at the end of the aluminum frame.
[0006] The beneficial effects of this solution are as follows: After placing the rolled aluminum material onto the bent block in the middle of the base plate, the lifting frame moves the first and second pressing blocks downwards to cooperate with the bent block and press the aluminum material into an aluminum frame. The rolled edge is located inside one side of the aluminum frame, with one side of the rolled edge located in the positioning groove. A gap is left between the rolled edge and the frame edge, and a hollow hole is formed at the end of the aluminum frame. Under the pressure of the first pressing block, the second pressing block moves. Subsequently, under the clamping action of the welding pressure component on the bent block, the lifting frame moves the first and second pressing blocks upwards to separate them from the aluminum frame. Afterwards, the welding pressure component pushes the bending block to rotate and causes the two sides of the aluminum frame to continue bending to fill the gap between the rolled edge and the frame edge, so that the rolled edge and the frame edge come into contact. Then the rolled edge and the frame edge are welded. Afterwards, the aluminum frames are welded in pairs. After the laminate is installed into the aluminum frame, the aluminum frames that have been welded in pairs are welded in pairs to form a four-sided frame. At this time, the rolled edge position limits the laminate, and a channel is formed between the laminate and the aluminum frame. The edge of the laminate can be glued through the hollow hole at the end of the aluminum frame.
[0007] Thus, after the aluminum frame is pressed, the rolled edge is located inside one of the frame edges. After the laminate is installed into the aluminum frame, the rolled edge limits the position of the laminate, which helps to restrict the movement of the laminate. The channel formed between the laminate and the aluminum frame, together with the hollow hole formed at the end of the aluminum frame, allows the edge of the laminate to be glued after it is installed into the aluminum frame. This effectively solves the problem of glue overflowing due to pressure during installation, ensuring the quality of photovoltaic accessories. Moreover, even if the glue does not completely fill the channel, the existence of the channel also helps to improve the heat dissipation effect of the photovoltaic accessories during use. Furthermore, the formation of the hollow hole reduces the possibility of air trapped at the corners when the aluminum frame is welded in pairs, thereby reducing the possibility of air entering the weld pool and forming pores, thus improving the sealing of the weld and the barrier effect against rainwater and moisture.
[0008] Meanwhile, the positioning groove enables the detection of the rolled edge position. Once one side of the rolled edge is inserted into the positioning groove during the bending and turning process, it indicates that the rolled edge is qualified. It also standardizes the gap size between the rolled edge and the frame edge. In this way, when the aluminum frame is welded, the welded aluminum frame will be of standard size after the welding pressure component pushes the rolled edge to contact the frame edge, further solving the problems of laminating component shaking and extrusion overflow.
[0009] In addition, the rolled edges of the aluminum frame are cut in the previous process. The edges that will not be welded later will have burrs left. During the service period, photovoltaic components will be exposed to wind and will shake continuously. These burrs on the rolled edges will cause friction with the frame edge, which may lead to gaps. This will affect the aluminum frame's ability to block rain and moisture. In this solution, the second pressing block moves under the pressure of the first pressing block. During this process, the positioning groove can remove the burrs on the edge of the rolled edge, thereby improving the service life of the photovoltaic components from the perspective of preventing cracks.
[0010] Furthermore, the channel includes sidewalls and a bottom, with an obtuse angle between the sidewalls and the bottom.
[0011] Furthermore, the welding pressure component includes a welding pressure cylinder, a tube body, and a ball body. The tube body is fixedly connected to the ball body, and the ball body is hinged to the bending block. The welding pressure cylinder includes an output shaft, and a block body is fixedly connected to the output shaft of the welding pressure cylinder. A push block is fixed in the middle of the tube body, and a pull block is fixed at the end of the tube body away from the ball body. The block body is located between the push block and the pull block. The output shaft of the welding pressure cylinder passes through the pull block and has a movable space between it and the pull block.
[0012] Furthermore, the end face of the second pressure block is also provided with a positioning groove.
[0013] Furthermore, the welding process also includes step six: welding corner brackets to the perforated holes at the ends of the aluminum frame to seal the perforated holes.
[0014] Furthermore, the corner code covers the weld seams formed when the aluminum frame is welded in pairs. Attached Figure Description
[0015] Figure 1 This is a three-dimensional view of the assembly and welding device of the present invention before bending is completed; Figure 2 This is a top view of the second pressure block of the present invention; Figure 3 This is a sectional view of the welded component; Figure 4 A 3D model of aluminum material with rolled edges; Figure 5 A 3D model of the pressed aluminum frame; Figure 6 This is a 3D view of the aluminum frame after the two sides are welded together. Figure 7 A three-dimensional view of the four-sided frame formed by welding two pieces together and then welding two more pieces together; Figure 8 A 3D view of the laminate after it has been fitted with the four-sided frame; Figure 9 for Figure 8 Exploded view; Figure 10 A 3D view of the four-sided frame after corner braces have been welded to the edges.
[0016] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: base plate 1, first pressure block 2, bending block 3, welding cylinder 4, tube body 5, ball 6, block body 7, push block 8, pull block 9, lifting frame 10, drive cylinder 11, second pressure block 12, positioning groove 13, rolled edge 14, frame edge 15, hollow hole 16, laminate 17, channel 18, corner code 19. Detailed Implementation
[0017] Example A photovoltaic component assembly and welding process includes the following steps: Step 1: Preparation Figure 1 The photovoltaic component assembly and welding device shown includes a base plate 1, a first pressure block 2, and two bent blocks 3. A through groove is formed in the middle of the base plate 1. The two bent blocks 3 are rotatably mounted within the through groove by rotating with the base plate 1 via pins. The through groove includes side walls and a bottom, with an obtuse angle between the side walls and the bottom. Welding components are provided on both sides of the base plate 1, such as... Figure 1 , 3 As shown, the welding pressure component includes a welding pressure cylinder 4, a tube body 5, and a ball 6. The tube body 5 is welded to the ball 6, and the ball 6 is spherically hinged to the bending block 3. The welding pressure cylinder 4 includes an output shaft, and a block 7 is welded to the output shaft of the welding pressure cylinder 4. A push block 8 is welded to the middle of the tube body 5, and a pull block 9 is welded to the end of the tube body 5 away from the ball 6. The block 7 is located between the push block 8 and the pull block 9. The output shaft of the welding pressure cylinder 4 passes through the pull block 9 and has a movable space between it and the pull block 9. In this way, the bending block 3 can rotate first under the action of the pressure block, and then the welding pressure cylinder 4 will act again when it is necessary to continue rotating the bending block 3.
[0018] like Figure 1 As shown, a lifting frame 10 and a driving component are welded onto the first pressure block 2. The lifting frame 10 can move up and down after being connected to a hydraulic system, such as a hydraulic cylinder. The driving component is connected to the second pressure block 12. The driving component can be a driving cylinder 11, such as... Figure 2 As shown, positioning grooves 13 are opened on the upper surface and end face of the second pressing block 12.
[0019] Step Two: [The sentence is incomplete and requires more context to be translated accurately.] Figure 4 The aluminum material with rolled edge 14 shown is placed as follows Figure 1 After the bending block 3 is placed on the bending block 3, the lifting frame 10 moves the first pressing block 2 and the second pressing block 12 downwards to cooperate with the bending block 3 and press the aluminum material into the shape shown. Figure 5The aluminum frame shown has a rolled edge 14 located inside one of the frame edges 15. One side x of the rolled edge 14 is inserted into the positioning groove 13 on the upper surface of the second pressure block 12. A gap is left between the rolled edge 14 and the frame edge 15, and a hollow hole 16 is formed at the end of the aluminum frame. That is, this solution also provides an aluminum frame structure in which the rolled edge 14 is located inside one of the frame edges 15, a gap is left between the rolled edge 14 and the frame edge 15, and a hollow hole 16 is formed at the end of the aluminum frame.
[0020] Step 3: Under the pressure of the first pressing block 2, the second pressing block 12 moves toward the first pressing block 2. Then, under the clamping action of the welding cylinder 4 on the bending block 3, the lifting frame 10 drives the first pressing block 2 and the second pressing block 12 to move upward and separate from the aluminum frame. When the second pressing block 12 moves upward, the other side y of the rolled edge 14 will be inserted into the positioning groove 13 on the end face of the second pressing block 12.
[0021] Step 4: The welding cylinder 4, through block 7, push block 8, tube 5, and ball 6, pushes the bending block 3 to rotate, causing the two edges of the aluminum frame to continue bending to fill the gap between the rolled edge 14 and the frame edge 15, so that... Figure 5 The rolled edge 14 shown is in contact with the frame edge 15, and then the rolled edge 14 is welded to the frame edge 15 except for the x and y sides.
[0022] Step 5: [The sentence is incomplete and requires more context to be translated accurately.] Figure 6 After welding the aluminum frames in pairs as shown, the laminate 17 is installed into the aluminum frames, and then the welded aluminum frames are welded in pairs to form the following structure. Figure 7 , 8 The four sides shown are: Figure 7 A 3D view of the area without laminate 17 installed, as shown below. Figure 9 As shown, the rolled edge 14 position limits the laminate 17, and a channel 18 is formed between the laminate 17 and the aluminum frame. Adhesive is applied to the edge of the laminate 17 through the hollow hole 16 at the end of the aluminum frame.
[0023] Step Six: As Figure 10 As shown, corner brackets 19 are welded to the four corner holes 16 at the ends of the aluminum frame to seal the holes 16. Figure 10 Only one corner code 19 is shown. Corner code 19 covers the weld seam when the aluminum frame is welded in pairs, improving the barrier effect against rainwater and moisture.
[0024] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A photovoltaic component assembly and welding process, characterized in that: Includes the following steps: Step 1: Prepare a photovoltaic accessory assembly and welding device, including a base plate, a first pressure block and two bent blocks. The base plate has a through groove in the middle, and the two bent blocks are rotatably set in the through groove. Welding pressure pieces are provided on both sides of the base plate, and the welding pressure pieces are hinged to the bent blocks. A lifting frame and a driving component are fixedly connected to the first pressure block. The driving component is connected to the second pressure block, and a positioning groove is provided on the upper surface of the second pressure block. Step 2: After placing the rolled aluminum material onto the bending block, lift the frame to move the first and second pressing blocks down to cooperate with the bending block and press the aluminum material into an aluminum frame. The rolled edge is located inside one side of the aluminum frame, and one side of the rolled edge is located in the positioning groove. A gap is left between the rolled edge and the frame edge, and a hollow hole is formed at the end of the aluminum frame. Step 3: Under the pressure of the first pressure block, the second pressure block moves. Then, under the clamping action of the welded pressure piece on the bending block, the lifting frame drives the first and second pressure blocks to move upward and separate from the aluminum frame. Step 4: The welding pressure component pushes the bending block to rotate and causes the two edges of the aluminum frame to continue bending to fill the gap between the rolled edge and the frame edge, so that the rolled edge contacts the frame edge, and then the rolled edge and the frame edge are welded. Step 5: After welding the aluminum frames in pairs, install the laminate into the aluminum frames, and then continue to weld the aluminum frames in pairs to form a four-sided frame. At this time, the rolled edge position limits the laminate, and a channel is formed between the laminate and the aluminum frame. Apply glue to the edge of the laminate through the hollow hole at the end of the aluminum frame.
2. The photovoltaic component assembly and welding process according to claim 1, characterized in that: The channel includes a sidewall and a bottom, and the included angle between the sidewall and the bottom is an obtuse angle.
3. The photovoltaic component assembly and welding process according to claim 2, characterized in that: The welding pressure component includes a welding pressure cylinder, a tube body, and a ball. The tube body is fixedly connected to the ball body, and the ball body is hinged to the bending block. The welding pressure cylinder includes an output shaft, and a block is fixedly connected to the output shaft of the welding pressure cylinder. A push block is fixed in the middle of the tube body, and a pull block is fixed at the end of the tube body away from the ball body. The block body is located between the push block and the pull block. The output shaft of the welding pressure cylinder passes through the pull block and has a space for movement between it and the pull block.
4. The photovoltaic component assembly and welding process according to claim 3, characterized in that: The end face of the second pressure block is also provided with a positioning groove.
5. The photovoltaic component assembly and welding process according to claim 4, characterized in that: The welding process also includes step six: welding corner brackets to the hollowed-out holes at the ends of the aluminum frame to seal the hollowed-out holes.
6. The photovoltaic component assembly and welding process according to claim 5, characterized in that: The corner brackets cover the weld seams formed when the aluminum frame is welded in pairs.