Solder strip cooling air duct structure

Abstract

The utility model discloses a solder strip cooling air duct structure, which relates to the solder strip production equipment field, and comprises a fixed shell and a plurality of installation shells, the installation shells are installed on the outer side wall of the fixed shell, the inner side wall of the fixed shell is provided with a plurality of through grooves, the inner walls of the through grooves are rotatably connected with movable plates through rotating shafts, and the movable plates are connected with the fixed shell. The outer wall of the rotating shaft is connected with an angle control mechanism, and a turbulent flow mechanism is arranged on the surface of the movable plate. Cold air entering the fixing shell is subjected to turbulent flow through the turbulent flow mechanism, so that turbulent flow and vortex are generated, friction and heat exchange between the cold air and the surface of the welding strip are increased, cooling efficiency is improved, the contact area between the cold air and the surface of the welding strip can be increased, and contact time between the cold air and the surface of the welding strip can be prolonged. And the angle control mechanism can also control the opening angle between the movable plate and the through groove, the air outlet amount of cold air is changed, when the passing speed of the welding strip is higher, the movable plate is opened, the air outlet amount is increased, and then the cooling effect of the cold air on the welding strip is improved.

Description

Technical Field

[0001] The utility model relates to the field of welding strip production equipment, in particular to a welding strip cooling air duct structure. Background Art

[0002] Photovoltaic welding ribbon, also known as tinned copper ribbon or tin-coated copper ribbon, is a branch current ribbon and interconnection strip. It is used to connect the solar cells of photovoltaic modules and plays an important role in conductivity and collection of electricity. The welding ribbon is an important raw material in the welding process of photovoltaic modules. The quality of the welding ribbon will directly affect the current collection efficiency of the photovoltaic module and has a great impact on the power of the photovoltaic module.

[0003] When producing welding strips, the selected metal materials are cut and punched to ensure that the size and shape of each piece of raw material meet the standard requirements. The raw materials are then hot-rolled or cold-rolled to the required thickness and width. The surface of the welding strip is then cleaned and coated to enhance its rust resistance and corrosion resistance. The cleaned and coated welding strip is cut and rolled for subsequent production operations.

[0004] Among them, when the soldering strip is tinned, electroplating, soldering and hot-dip plating are generally used. Among them, the hot-dip plating method is to immerse the soldering strip in molten tin liquid to form a metal coating on its surface. After the dipping is completed, the soldering strip needs to be cooled so that the metal coating can be solidified on the surface of the soldering strip. The normal cooling method is air cooling and natural cooling. The natural cooling speed is slow, the air cooling speed is fast, and the applicability is high. Therefore, after the soldering strip is tinned, it is mostly cooled by air. After the soldering strip is tinned, it passes through the air duct, and the cooling air enters the air duct to blow directly on the soldering strip to quickly cool its surface.

[0005] In the actual air cooling process, the air cooling effect is related to the speed at which the welding ribbon passes through the air duct. To improve the production efficiency of the welding ribbon, it is necessary to increase the passing speed of the welding ribbon. However, the faster the welding ribbon speed is, the shorter the contact time with the cold air is, the worse the air cooling effect is, and the coating on the surface of the welding ribbon cannot get a good cooling effect. The coating may fall off during the subsequent winding, thus affecting the overall production quality of the welding ribbon. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a solder strip cooling duct structure to solve the technical problem that when the solder strip is cooled quickly through the duct, the heat exchange time with the cold air is reduced, resulting in the coating not being completely cooled.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding strip cooling air duct structure, comprising a fixed shell and a plurality of mounting shells, wherein the mounting shells are mounted on the outer wall of the fixed shell, and the inner wall of the fixed shell is provided with a plurality of through grooves, the inner walls of the through grooves are rotatably connected to a movable plate through a rotating shaft, and the outer wall of the rotating shaft is connected to an angle control mechanism, and a spoiler mechanism is arranged on the surface of the movable plate.

[0008] The utility model is further configured that the spoiler mechanism includes a fixed plate and a protrusion, a plurality of rows of the fixed plates are fixedly installed on the surface of the movable plate, and a plurality of protrusions are fixedly arranged on the surface of the fixed plate.

[0009] The utility model is further configured that the fixed plates are arc-shaped plates, and the angles between each row of fixed plates and the movable plates increase sequentially along the direction away from the rotation axis.

[0010] The utility model is further configured as follows: the angle control mechanism includes a cylinder, a connecting block, a lifting plate, a rack and a gear; the cylinder is mounted on the outer wall of a fixed shell; the output end of the cylinder is connected to a connecting block; one end of the connecting block is located inside the wall of the fixed shell and is connected to a lifting plate; the outer walls of the rotating shafts are fixedly connected to gears; the outer walls of the lifting plate are fixedly provided with a plurality of racks, and each rack is respectively meshed with a gear.

[0011] The utility model is further configured that the top and the bottom of the fixed shell are both provided with mounting plates, and the top of the mounting plate is provided with an infrared sensor.

[0012] The utility model is further configured that a plurality of ventilation holes are provided on the top of the mounting plate.

[0013] To sum up, the utility model mainly has the following beneficial effects: the utility model uses a spoiler mechanism to turbulently control the cold air entering the fixed shell, so that turbulence and vortex are generated, thereby increasing the friction and heat exchange between the cold air and the surface of the welding strip, improving the cooling efficiency, and increasing the contact area and contact time between the cold air and the surface of the welding strip. The angle control mechanism can also control the opening angle between the movable plate and the through slot, and change the air volume of the cold air. When the welding strip passes faster, the movable plate opens to increase the air volume, thereby improving the cooling effect of the cold air on the welding strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the external three-dimensional structure of the utility model;

[0016] Figure 3 This is a structural schematic diagram of the angle control mechanism of the utility model;

[0017] Figure 4 It is a side view of the surface structure of the movable plate of the utility model.

[0018] In the figure: 1. fixed shell; 2. mounting shell; 3. mounting plate; 4. infrared sensor; 5. movable plate; 6. through groove; 7. fixed plate; 8. protrusion; 9. cylinder; 10. connecting block; 11. lifting plate; 12. rack; 13. gear. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0020] The following describes an embodiment of the utility model based on its overall structure.

[0021] A welding strip cooling air duct structure, such as Figure 1-4 As shown, the main structure of the air duct is a fixed shell 1, a plurality of mounting shells 2 are installed on the outer side, a plurality of through slots 6 are opened on the inner side, the through slots 6 correspond to the mounting shells 2 one by one, the mounting shells 2 are connected to an external cooling fan, and cold air is input into the mounting shells 2 and enters the interior of the fixed shell 1 through the through slots 6 to cool the welding strip, and the welding strip is pulled by the winding device at the bottom of the air duct so that the welding strip is wound up after entering the air duct for cooling after tinning is completed.

[0022] In order to solve the problem that the cooling effect becomes lower as the speed of the welding strip passing through the fixed shell 1 increases, the inner wall of the through slot 6 is rotatably connected with a movable plate 5 through a rotating shaft, and the air volume of the through slot 6 is controlled by the movable plate 5. When the speed of the welding strip increases, the movable plate 5 is opened to increase the air volume and improve the cooling effect.

[0023] The opening of the movable plate 5 is controlled by an angle control mechanism, which includes a cylinder 9, which is mounted on the outer wall of the fixed shell 1, and a connecting block 10 is connected to the movable end of the cylinder 9. A lifting plate 11 is movably arranged in the wall of the fixed shell 1, and the connecting block 10 is connected to the lifting plate 11, that is, when the cylinder 9 performs telescopic movement, the connecting block 10 will drive the lifting plate 11 to perform lifting work synchronously, a gear 13 is installed on the rotating shaft of the movable plate 5, and a rack 12 is fixedly arranged on the outer wall of the lifting plate 11, and the rack 12 is meshed with the gear 13 in a one-to-one correspondence, that is, when the lifting plate 11 performs lifting movement under the action of the cylinder 9, the rack 12 will drive the gear 13 to rotate, so as to control the contact angle between the movable plate 5 and the through slot 6;

[0024] By controlling the air volume, the solder strip can be cooled with a larger air volume when the solder strip passes faster, resulting in a better cooling effect. At the same time, the controllable air volume also reduces the occurrence of solder strip cracking due to excessive wind force and overcooling.

[0025] At the same time, in order to further enhance the cooling effect of the cold air on the welding strip, the spoiler mechanism on the movable plate 5 can spoil the cold air, so that the cold air changes from direct blowing to turbulent contact. The spoiler mechanism includes a fixed plate 7 and a protrusion 8. Multiple rows of fixed plates 7 are installed on the surface of the movable plate 5. The surface of the fixed plate 7 is provided with multiple protrusions 8. The fixed plate 7 blocks the cold air and changes its movement direction. In cooperation with the protrusion 8, the cold air is generated to generate turbulence and vortex, thereby increasing the friction and heat exchange between the cold air and the surface of the welding strip, and improving the cooling efficiency.

[0026] Furthermore, the fixed plate 7 is an arc-shaped plate, and the angle between each row of fixed plates 7 and the movable plate 5 increases successively in the direction away from the rotation axis, so that the cold air can be guided from one fixed plate 7 to another fixed plate 7, further enhancing the turbulence effect of the fixed plate 7 and the protrusion 8 on the cold air.

[0027] The top and bottom of the fixed shell 1 are both provided with mounting plates 3, and the top of the mounting plate 3 is installed with an infrared sensor 4. The infrared sensor 4 and the cylinder 9 are both connected to the control device. After the infrared sensor 4 senses that the welding strip has passed, the cylinder 9 and the cold air device are opened to carry out subsequent cooling work, and the control mechanism can control the lifting and lowering of the cylinder 9 to achieve the effect of adjusting the opening of the movable plate 5. The above-mentioned electrical connection diagram and specific connection structure are not the main innovation points, so they are not illustrated. Those skilled in the art can select any circuit and connection method that can achieve the corresponding function.

[0028] Furthermore, a plurality of ventilation holes are provided on the top of the mounting plate 3, through which internal air circulation is maintained, the generation of a large amount of water mist is reduced, and the cooling quality is ensured.

[0029] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Claims

1. A welding strip cooling air duct structure, comprising a fixed shell (1) and a plurality of mounting shells (2), wherein the mounting shells (2) are mounted on the outer side wall of the fixed shell (1), and the inner side wall of the fixed shell (1) is provided with a plurality of through grooves (6), characterized in that: The inner wall of the through groove (6) is rotatably connected to a movable plate (5) via a rotating shaft, and the outer wall of the rotating shaft is connected to an angle control mechanism. A spoiler mechanism is provided on the surface of the movable plate (5).

2. A welding strip cooling duct structure according to claim 1, characterized in that: The spoiler mechanism comprises a fixed plate (7) and a protrusion (8); a plurality of rows of the fixed plates (7) are fixedly mounted on the surface of the movable plate (5); and a plurality of protrusions (8) are fixedly arranged on the surface of the fixed plate (7).

3. A welding strip cooling duct structure according to claim 2, characterized in that: The fixed plates (7) are arc-shaped plates, and the angles between each row of fixed plates (7) and the movable plates (5) increase sequentially along the direction away from the rotation axis.

4. The welding strip cooling air duct structure according to claim 1, characterized in that: The angle control mechanism comprises a cylinder (9), a connecting block (10), a lifting plate (11), a rack (12) and a gear (13); the cylinder (9) is mounted on the outer wall of the fixed shell (1); the output end of the cylinder (9) is connected to the connecting block (10); one end of the connecting block (10) is located inside the wall of the fixed shell (1) and is connected to the lifting plate (11); the outer wall of the rotating shaft is fixedly connected to the gear (13); the outer wall of the lifting plate (11) is fixedly provided with a plurality of racks (12), and each rack (12) is respectively meshed with a gear (13).

5. The welding strip cooling air duct structure according to claim 1, characterized in that: The top and bottom of the fixed shell (1) are both provided with mounting plates (3), and the top of the mounting plate (3) is provided with an infrared sensor (4).

6. A welding strip cooling air duct structure according to claim 5, characterized in that: A plurality of ventilation holes are provided on the top of the mounting plate (3).

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