Cooling device of photovoltaic solder strip tinning machine

Abstract

The invention discloses a cooling device of a photovoltaic welding strip tinning machine, which comprises a rack, a traction device is arranged at the bottom of the rack, and a longitudinal cooling air injection device and a lifting device are arranged on the side surface of the rack; the cooling air injection device comprises an air pipe longitudinally arranged on the side face of the rack, two rows of opposite air nozzles are arranged on the left side and the right side in the air pipe respectively, and a gap used for penetrating through a photovoltaic solder strip tinned copper wire is formed between the two rows of opposite air nozzles. The lifting device comprises a suspension wheel, and the suspension wheel is used for changing the moving direction of the photovoltaic solder strip tinned copper wire and conveying the photovoltaic solder strip tinned copper wire to the top end of the rack; the traction device is used for pulling the photovoltaic solder strip tinned copper wire sent out by the lifting device and then sending the photovoltaic solder strip tinned copper wire into the take-up device. According to the cooling device, adjustment of the cooling device is achieved, operation is convenient, the automation degree is high, and therefore continuous, stable and efficient cooling of the photovoltaic solder strip tinned copper wire can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic solder strip tinning machine production, and in particular to a cooling device of a photovoltaic solder strip tinning machine. Background Art

[0002] As a key connection material in photovoltaic modules, the quality and performance of photovoltaic ribbon tinned copper wire directly affect the efficiency and life of photovoltaic modules. With the rapid development of China's photovoltaic industry, the photovoltaic ribbon tinned copper wire market has also ushered in unprecedented development opportunities. At present, China's photovoltaic industry is booming, and new photovoltaic installations have been increasing, which has driven the demand for photovoltaic modules including photovoltaic ribbon tinned copper wire.

[0003] With the development of photovoltaic module technology, photovoltaic tinned copper wire products are also iterating towards SMBB, 0BB welding ribbons and other directions. The average width of the interconnection welding ribbon has been reduced from 2mm in the 2BB era to 0.32mm in the MBB era. At present, the wire diameter of the SMBB welding ribbon of mainstream manufacturers has gradually dropped to below 0.3mm. With the development of 0BB technology, the diameter of the matching 0BB welding ribbon has further dropped to below 0.2mm. As the wire diameter of photovoltaic tinned copper wire products is getting thinner and thinner, the production speed of the tinning machine needs to be faster and faster under the condition that the company requires stable or even increased shipment weight. In order to increase the production speed, it is usually adopted to speed up the operation speed of the cooling device. In this way, the cooling efficiency of the tinned copper wire of the photovoltaic welding ribbon produced after tinning needs to be higher than the traditional cooling efficiency, and the traditional natural cooling is obviously not suitable for the current production speed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a cooling device for a photovoltaic solder strip tinning machine in view of the deficiencies in the above-mentioned prior art, thereby solving the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a cooling device for a photovoltaic welding strip tinning machine, comprising a frame, a traction device is arranged at the bottom of the frame, and a longitudinal cooling jet device and a lifting device are arranged on the side of the frame;

[0006] The cooling jet device comprises an air duct longitudinally arranged on the side of the frame, and two rows of air nozzles are arranged on the left and right sides of the air duct respectively, and there is a gap between the two rows of air nozzles for passing the tinned copper wire of the photovoltaic welding strip;

[0007] The lifting device includes a suspension wheel, which is used to change the movement direction of the tinned copper wire of the photovoltaic welding ribbon and send the tinned copper wire of the photovoltaic welding ribbon to the top of the frame;

[0008] The traction device is used to pull the tinned copper wire of the photovoltaic welding ribbon sent out by the lifting device and then send it into the wire take-up device.

[0009] Furthermore, the air duct is a hollow body in the shape of a Chinese character "concave", and the air nozzle is installed on the inner side of the air duct.

[0010] Furthermore, the cooling jet device also includes a pusher, the pusher is fixed on the frame, and the output end of the pusher is connected to the air duct.

[0011] Furthermore, the pusher includes a cylinder and a bracket, the cylinder is fixed on the frame, the output end of the cylinder is connected to the bracket, and the bracket is fixedly connected to the air duct.

[0012] Furthermore, the lifting device includes a slide rail fixed to the side edge of the frame in the longitudinal direction, and a cross bar in the horizontal direction is slidably connected to the slide rail. The cross bar is connected to a transmission belt. The cross bar can move in the longitudinal direction along the slide rail through the transmission belt. The transmission belt drives it to rotate through a driver, and the suspension wheel is provided on the cross bar.

[0013] Furthermore, it also includes a processor and a power supply, wherein the processor is respectively connected to the cooling jet device and the lifting device by signal; the power supply is respectively connected to the cooling jet device and the lifting device by electrical connection;

[0014] The processor is used to control the cylinder to move the air duct backward to a point where it has no intersection with the area where the cross bar moves up and down after the worker has put on the tinned copper wire of the photovoltaic welding ribbon, control the driver to drive the transmission belt to rotate so that the cross bar moves to the top of the frame, and then control the cylinder to move the air duct forward so that the suspension wheel is located directly above the air duct.

[0015] Furthermore, the traction device includes a traction frame, which is fixedly connected to the bottom of the frame. A traction wheel, a first wire wheel, a second wire wheel and a swing wheel are sequentially arranged on one side of the traction frame from top to bottom and from left to right. The swing wheel is connected to the traction frame through a rocker rod.

[0016] Furthermore, the traction wheel, the first guide wheel, the second guide wheel and the swing wheel are respectively provided with a plurality of parallel guide grooves on their circumferential directions.

[0017] Furthermore, it also includes a processor and a power supply, wherein the processor is also signal-connected to the traction device, and the power supply is electrically connected to the cooling jet device and the lifting device respectively;

[0018] The processor is used to adjust the magnitude of the speed change of the traction wheel to be proportional to the magnitude of the swing angle of the swing rod that controls the swing of the swing wheel.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The present invention provides a cooling device for a photovoltaic welding strip tinning machine. After a worker has put on the photovoltaic welding strip tinned copper wire, the cylinder is controlled to move the air duct backward to a region where there is no intersection with the area where the cross bar moves up and down, the driver is controlled to drive the transmission belt to rotate so that the cross bar moves to the top of the frame, and then the cylinder is controlled to move the air duct forward so that the suspension wheel is located directly above the air duct, thereby achieving adjustment of the cooling device, convenient operation, and a high degree of automation, thereby achieving continuous, stable, and efficient cooling of the photovoltaic welding strip tinned copper wire.

[0021] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall structure of a cooling device for a photovoltaic solder strip tinning machine provided by the present invention.

[0023] Figure 2 It is a structural schematic diagram of the distribution structure relationship between the lifting device and the cooling jet device in the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the traction device in the present invention.

[0025] Description of reference numerals:

[0026] 1. Frame; 2. Lifting device; 2-1. Transmission belt; 2-2. Cross bar; 2-3. Slide rail; 2-4. Suspension wheel; 3. Cooling jet device; 3-1. Air duct; 3-2. Jet nozzle; 3-3. Pusher; 3-3-1. Cylinder; 3-3-2. Bracket; 4. Traction device; 4-1. Traction wheel; 4-2. First guide wheel; 4-3. Second guide wheel; 4-4. Swing wheel; 4-5. Traction frame. DETAILED DESCRIPTION

[0027] like Figure 1-3 As shown, a cooling device for a photovoltaic ribbon tinning machine provided by the present invention comprises a frame 1, a traction device 4 is provided at the bottom of the frame 1, and a longitudinal cooling jet device 3 and a lifting device 2 are provided on the side of the frame 1;

[0028] The cooling jet device 3 includes an air duct 3-1 longitudinally arranged on the side of the rack 1, and two rows of air nozzles 3-2 are arranged on the left and right sides of the air duct 3-1, and there is a gap between the two rows of air nozzles 3-2 for passing the tinned copper wire of the photovoltaic welding strip;

[0029] The lifting device 2 includes a suspension wheel 2-4, and the suspension wheel 2-4 is used to change the movement direction of the tinned copper wire of the photovoltaic welding ribbon and send the tinned copper wire of the photovoltaic welding ribbon to the top of the frame 1;

[0030] The traction device 4 is used to pull the tinned copper wire of the photovoltaic welding ribbon sent out by the lifting device 2 and send it into the wire take-up device.

[0031] The air duct 3-1 is a hollow body in the shape of a Chinese character "concave", and the air nozzle 3-2 is installed on the inner side of the air duct 3-1. When the cooling device is in operation, the blower provides normal temperature or cooled and dry air to the air duct 3-1 through the pipeline, and the air is ejected from each air nozzle 3-2 to achieve cooling of the tinned copper wire of the photovoltaic welding strip.

[0032] At the same time, the cooling jet device 3 also includes a pusher 3-3, the pusher 3-3 is fixed on the frame 1, and the output end of the pusher 3-3 is connected to the air duct 3-1. The pusher 3-3 includes a cylinder 3-3-1 and a bracket 3-3-2, the cylinder 3-3-1 is fixed on the frame 1, the output end of the cylinder 3-3-1 is connected to the bracket 3-3-2, and the bracket 3-3-2 is fixedly connected to the air duct 3-1.

[0033] At the same time, the lifting device 2 includes a slide rail 2-3 fixed to the side edge of the frame 1 in the longitudinal direction, and a horizontal cross bar 2-2 is slidably connected to the slide rail 2-3. The cross bar 2-2 is connected to the transmission belt 2-1. The cross bar 2-2 can move in the longitudinal direction along the slide rail 2-3 through the transmission belt 2-1. The transmission belt 2-1 is driven to rotate by a driver, and the suspension wheel 2-4 is arranged on the cross bar 2-2.

[0034] In order to realize automatic control, the cooling device of the present invention further includes a processor and a power supply, wherein the processor is respectively connected to the cooling jet device 3 and the lifting device 2 by signals; the power supply is respectively connected to the cooling jet device 3 and the lifting device 2 by electrical connections;

[0035] The processor is used to control the cylinder 3-3-1 to move the air duct 3-1 backward to have no intersection with the area where the cross bar 2-2 moves up and down after the worker has put on the tinned copper wire of the photovoltaic welding strip, control the driver to drive the transmission belt 2-1 to rotate so that the cross bar 2-2 moves to the top of the frame 1, and then control the cylinder 3-3-1 to move the air duct 3-1 forward so that the suspension wheel 2-4 is located directly above the air duct 3-1.

[0036] The main body of the cooling jet device 3 is a hollow air duct 3-1 in the shape of a Chinese character "concave", on which a number of air nozzles 3-2 are installed. When the cooling device is in operation, the blower provides normal temperature or cooled and dry air to the air duct 3-1 through the pipeline, and the air is ejected from each air nozzle 3-2 to achieve the cooling of the tinned copper wire of the photovoltaic welding strip. The cooling jet device 3 can move forward and backward along the slide rail on the frame 1 through the transmission device: when the lifting device 2 needs to be lifted and lowered, the cooling jet device 3 moves to the rear end to avoid interference with it; when the lifting device 2 is raised to the top and the cooling device is in operation, the cooling jet device 3 moves to the front end to "wrap" the tinned copper wire of the photovoltaic welding strip, so that each air nozzle 3-2 is aligned with the tinned copper wire of the photovoltaic welding strip, and the air is ejected to cool the tinned copper wire of the photovoltaic welding strip.

[0037] The lifting device 2 can be lifted and lowered on the frame 1 through the transmission mechanism. Before the cooling device is operated, the operator operates the cooling jet device 3 to move to the rear end, the lifting device 2 is lowered to the lowest point, the operator passes the tinned copper wire of the photovoltaic welding ribbon around the wire wheel, operates the lifting device 2 to rise to the highest point, and then operates the cooling jet device 3 to move to the front end.

[0038] In the present invention, the traction device 4 includes a traction frame 4-5, the traction frame 4-5 is fixedly connected to the bottom of the frame 1, and one side of the traction frame 4-5 is provided with a traction wheel 4-1, a first wire wheel 4-2, a second wire wheel 4-3 and a swing wheel 4-4 from top to bottom and from left to right, and the swing wheel 4-4 is connected to the traction frame 4-5 through a swing rod. In order to be able to wind multiple photovoltaic welding ribbon tinned copper wires at the same time and to run the cooling device of the present invention by the way, the wheel surfaces of the traction wheel 4-1, the first wire wheel 4-2, the second wire wheel 4-3 and the swing wheel 4-4 are respectively provided with a plurality of parallel wire grooves in the circumferential direction, and each wire groove accommodates a photovoltaic welding ribbon tinned copper wire.

[0039] In order to realize automatic control, the cooling device of the present invention further includes a processor and a power supply, wherein the processor is also signal-connected to the traction device 4, and the power supply is electrically connected to the cooling jet device 3 and the lifting device 2 respectively;

[0040] The processor is used to adjust the magnitude of the speed change of the traction wheel 4-1 to be proportional to the magnitude of the swing angle of the swing rod that controls the swing wheel 4-4 to swing.

[0041] The traction device 4 is a powered traction wheel 4-1 and two fixed wire wheels 4-2, 4-3 and a swing wheel 4-4 that cooperate with it. The traction wheel 4-1 has multiple grooves, and the wire wheels 4-2, 4-3 and the swing wheel 4-4 are all coaxial multiple guide wheels. After the tinned copper wire of the photovoltaic welding strip passes around the wire wheel 21 of the lifting device 2, it is wound around the traction wheel 4-1, and then it is wound around the traction wheel 4-1 and the wire wheel 4-2 for several turns as traction power, and then it is wound around the wire wheel 4-3 and the swing wheel 4-4 for several turns as storage line speed regulation. The swing rod where the swing wheel 4-4 is located is connected to a potentiometer, and the speed of the traction wheel is adjusted according to the swing amplitude of the swing rod through the PID high-precision calculation method: when the swing wheel 4-4 swings upward, it means that the operating speed of this cooling device is lower than the operating speed of the subsequent device, and the speed of the traction wheel 4-1 is increased by the controller; on the contrary, when the swing wheel 4-4 swings downward, it means that the operating speed of this cooling device is higher than the operating speed of the subsequent device, and the speed of the traction wheel 4-1 is increased by the controller. The magnitude of the speed change of the traction wheel 4-1 adjusted by the controller is proportional to the magnitude of the swing angle measured by the potentiometer connected to the swing rod where the swing wheel 4-4 is located. The formula is:

[0042] V 输出 =V 主 +V 辅

[0043] V 辅 =V 调 Iω (when ω is an upward angle)

[0044] V 辅 =-V 调 Iω (when ω is a downward angle)

[0045] Where V 调 is the speed setting value, I is the coefficient, ω is the pendulum deviation angle, V 输出 is the final output speed of the traction wheel 4-1, V 主 is the traction 4-1 wheel speed set in the processor, V 辅 The speed setting value V is adjusted by the pendulum deviation angle ω and the coefficient I 调 The calculated speed value that the traction wheel 4-1 should increase or decrease.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A cooling device for a photovoltaic ribbon tinning machine, characterized in that: It comprises a frame (1), a traction device (4) is arranged at the bottom of the frame (1), and a longitudinal cooling jet device (3) and a lifting device (2) are arranged on the side of the frame (1); The cooling jet device (3) comprises an air duct (3-1) longitudinally arranged on the side of the frame (1), and two rows of air nozzles (3-2) are arranged on the left and right sides of the air duct (3-1), respectively, and there is a gap between the two rows of air nozzles (3-2) for passing the tinned copper wire of the photovoltaic welding strip; The lifting device (2) comprises a suspension wheel (2-4), and the suspension wheel (2-4) is used to change the movement direction of the tinned copper wire of the photovoltaic welding ribbon and send the tinned copper wire of the photovoltaic welding ribbon to the top of the frame (1); The traction device (4) is used to pull the tinned copper wire of the photovoltaic welding ribbon sent out by the lifting device (2) and then send it into the wire take-up device.

2. A cooling device for a photovoltaic ribbon tinning machine according to claim 1, characterized in that: The air duct (3-1) is a hollow body in the shape of a Chinese character "concave", and the air nozzle (3-2) is installed on the inner side of the air duct (3-1).

3. A cooling device for a photovoltaic ribbon tinning machine according to claim 2, characterized in that: The cooling jet device (3) further comprises a pusher (3-3), wherein the pusher (3-3) is fixed on the frame (1), and an output end of the pusher (3-3) is connected to the air duct (3-1).

4. A cooling device for a photovoltaic ribbon tinning machine according to claim 3, characterized in that: The pusher (3-3) comprises a cylinder (3-3-1) and a bracket (3-3-2); the cylinder (3-3-1) is fixed on the frame (1); the output end of the cylinder (3-3-1) is connected to the bracket (3-3-2); and the bracket (3-3-2) is fixedly connected to the air duct (3-1).

5. A cooling device for a photovoltaic ribbon tinning machine according to claim 4, characterized in that: The lifting device (2) comprises a slide rail (2-3) fixed to the side edge of the frame (1) in the longitudinal direction, a horizontal cross bar (2-2) is slidably connected to the slide rail (2-3), the cross bar (2-2) is connected to a transmission belt (2-1), the cross bar (2-2) can move in the longitudinal direction along the slide rail (2-3) through the transmission belt (2-1), the transmission belt (2-1) is driven to rotate by a driver, and the suspension wheel (2-4) is arranged on the cross bar (2-2).

6. A cooling device for a photovoltaic ribbon tinning machine according to claim 5, characterized in that: It also includes a processor and a power supply, wherein the processor is respectively connected to the cooling jet device (3) and the lifting device (2) by signals; the power supply is respectively connected to the cooling jet device (3) and the lifting device (2) by electrical connections; The processor is used to control the cylinder (3-3-1) to move the air duct (3-1) backward to a point where it has no intersection with the area where the cross bar (2-2) moves up and down after the worker has put on the tinned copper wire of the photovoltaic welding strip, control the driver to drive the transmission belt (2-1) to rotate so that the cross bar (2-2) moves to the top of the frame (1), and then control the cylinder (3-3-1) to move the air duct (3-1) forward so that the suspension wheel (2-4) is located directly above the air duct (3-1).

7. A cooling device for a photovoltaic ribbon tinning machine according to claim 1, characterized in that: The traction device (4) comprises a traction frame (4-5), the traction frame (4-5) is fixedly connected to the bottom of the frame (1), and one side of the traction frame (4-5) is provided with a traction wheel (4-1), a first guide wheel (4-2), a second guide wheel (4-3) and a swing wheel (4-4) in sequence from top to bottom and from left to right, and the swing wheel (4-4) is connected to the traction frame (4-5) through a swing rod.

8. A cooling device for a photovoltaic ribbon tinning machine according to claim 7, characterized in that: The traction wheel (4-1), the first wire wheel (4-2), the second wire wheel (4-3) and the swing wheel (4-4) are respectively provided with a plurality of parallel wire grooves in the circumferential direction of the wheel surfaces.

9. A cooling device for a photovoltaic ribbon tinning machine according to claim 8, characterized in that: It also includes a processor and a power supply, wherein the processor is also signal-connected to the traction device (4), and the power supply is electrically connected to the cooling jet device (3) and the lifting device (2) respectively; The processor is used to adjust the magnitude of the speed change of the traction wheel (4-1) to be proportional to the magnitude of the swing angle of the swing rod that controls the swing of the swing wheel (4-4).

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