A secondary wetted photovoltaic busbar induction annealing device

Abstract

The utility model discloses a photovoltaic busbar induction annealing device of secondary blow wet, including organism, be equipped with blow wet mechanism and heating mechanism on the organism, the blow wet mechanism includes blow wet casing, constitute the primary blow wet chamber and secondary blow wet chamber in the blow wet casing, be equipped with drive mechanism in the organism, drive mechanism drive photovoltaic busbar passes through primary blow wet chamber, heating mechanism and secondary blow wet chamber in proper order to realize secondary blow wet processing before and after heating, the utility model discloses the gas can clean cooling and blow wet in advance before the heating of busbar, remove the heat and surface impurity produced in the conveying process, improve annealing effect.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic busbar technology, and in particular to a photovoltaic busbar induction annealing device with secondary wetting. Background Technology

[0002] Photovoltaic busbars are important conductive components used to connect solar cells in photovoltaic modules. Their quality and performance directly affect the electrical performance and reliability of photovoltaic modules. In order to improve the conductivity and flexibility of busbars, they usually need to be annealed during the manufacturing process to rearrange the internal metal grains and release stress, thereby improving their ductility and conductivity.

[0003] Existing photovoltaic busbar induction annealing devices typically heat and anneal the busbar directly without cleaning, cooling, or wetting it before heating. This can result in the presence of heat and surface impurities generated during transport on the busbar surface, affecting the uniformity of subsequent heating and the annealing effect. Utility Model Content

[0004] The purpose of this invention is to provide a photovoltaic busbar induction annealing device with secondary wetting, which can pre-clean, cool and wet the busbar before heating, remove the heat and surface impurities generated during transportation, and improve the annealing effect.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a photovoltaic busbar induction annealing device with secondary wetting, comprising a body, wherein the body is provided with a wetting mechanism and a heating mechanism, the wetting mechanism includes a wetting shell, wherein the wetting shell forms a preliminary wetting chamber and a secondary wetting chamber; the body is provided with a driving mechanism, the driving mechanism drives the photovoltaic busbar to pass through the preliminary wetting chamber, the heating mechanism and the secondary wetting chamber in sequence, so as to realize secondary wetting treatment before and after heating.

[0006] By adopting the above technical solution, the blowing and wetting mechanism is subdivided into a preliminary blowing and wetting chamber and a secondary blowing and wetting chamber. The manifold first undergoes a cooling and cleaning process through a cooling water tank to remove heat and surface impurities generated during transportation. Then it enters the preliminary blowing and wetting chamber, where the nozzle blows off the residual cooling and cleaning liquid on its surface with high-pressure airflow, effectively preventing the cooling and cleaning liquid from vaporizing and splashing due to high temperature after entering the heating area. Subsequently, it undergoes induction heating annealing treatment through the heating mechanism, and then enters the cooling water tank again before entering the secondary blowing and wetting chamber. The nozzle performs surface dehydration treatment again to ensure that residual liquid is completely removed after heat treatment, keeping the area clean and dry, which is beneficial for subsequent welding, film application and other processes.

[0007] The present invention is further configured such that: the preliminary blowing chamber is provided with a first inlet and a first outlet; a vertical preliminary blowing path is formed between the first inlet and the first outlet; and the nozzles in the preliminary blowing chamber are inclined toward the preliminary blowing path.

[0008] By adopting the above technical solution, the manifold passes through from bottom to top, and the nozzles are set tilted downwards towards the blowing path. This ensures that the airflow evenly covers the surface of the manifold, and makes the airflow direction inconsistent with the conveying direction of the manifold. This can enhance the blowing efficiency, further accelerate the blowing speed of the cooling cleaning fluid, and prevent residual liquid from remaining on the surface of the manifold and affecting the subsequent heating process.

[0009] The present invention is further configured such that: a second inlet is provided at the lower end of the secondary blowing chamber, and a second outlet is provided at the upper end of the secondary blowing chamber; a secondary blowing path is formed between the second inlet and the second outlet; a straightening wheel is provided above the second inlet, and the straightening wheel is used to correct the attitude of the confluence belt and keep the secondary blowing path vertical; the nozzles in the secondary blowing chamber are inclined toward the secondary blowing path.

[0010] By adopting the above technical solution, the straightening wheel set above the second feed inlet can effectively correct the posture of the confluence belt after it enters the secondary blowing chamber, ensuring that it remains vertical and preventing deviation or twisting. The nozzle is also tilted towards the blowing path, which enhances the blowing effect and ensures that the blown belt is clean and dry, meeting the requirements of subsequent processes.

[0011] The present invention is further configured such that: a cooling water tank is provided below the blowing and heating mechanism, and the photovoltaic busbar has a preliminary immersion path and a secondary immersion path in the cooling water tank.

[0012] By adopting the above technical solution, the cooling water tank stores cooling cleaning fluid, which is used to absorb heat on the manifold and achieve rapid cooling.

[0013] The present invention is further configured such that: the body is provided with a winding structure, the winding structure guides the photovoltaic busbar through the cooling water tank and into the preliminary immersion chamber to form the preliminary immersion path; the photovoltaic busbar is processed by the heating mechanism and then passes through the cooling water tank again and enters the secondary immersion chamber to form the secondary immersion path.

[0014] By adopting the above technical solution, the photovoltaic busbar undergoes a preliminary immersion path before entering the blowing and heating stage, which effectively removes surface impurities and reduces the initial temperature, providing conditions for subsequent induction heating; and after the heat treatment, it undergoes a secondary immersion path, which can quickly reduce its temperature and achieve annealing, helping to improve the surface quality of the busbar.

[0015] The present invention is further configured such that the photovoltaic busbar sequentially passes through a preliminary immersion path, a preliminary drying path, a heating mechanism, a secondary immersion path, and a secondary drying path to complete the processing.

[0016] By adopting the above technical solution, the photovoltaic busbar undergoes a preliminary immersion cooling and cleaning process before heating, followed by a preliminary wetting process to remove the liquid. After heating, it undergoes a second immersion cooling and annealing process, followed by a second wetting process to remove the liquid. This ensures a reasonable annealing process, effective removal of impurities, and thorough removal of liquid, thereby improving the finished quality of the photovoltaic busbar.

[0017] The present invention is further configured such that: the driving mechanism includes a driving motor, an active wire guide wheel and a driven wire guide wheel disposed on the machine body, the driving motor drives the active wire guide wheel to rotate, the active wire guide wheel is disposed in the cooling water tank, and the driven wire guide wheel is disposed above the heating mechanism.

[0018] By adopting the above technical solution, this utility model realizes continuous conveying of photovoltaic busbars by setting up a drive mechanism. The active wire guide wheel is located in the cooling water tank and can be cooled by the cooling cleaning liquid. The driven wire guide wheel is located above the heating mechanism and can work with the tensioning and winding system to keep the busbar tension constant, ensuring a stable and reliable processing path.

[0019] The present invention is further configured such that: the winding structure includes an inlet wheel, a first winding wheel and a second winding wheel disposed on both sides of the driven winding wheel, a third winding wheel disposed below the second winding wheel, a first guide wheel disposed above the first outlet, a second guide wheel disposed above the second outlet, and an outlet wheel disposed above the tensioning mechanism.

[0020] By adopting the above technical solution, the busbar path is guided by a combination of multiple guide wheels and winding wheels, so that it has a reasonable transition path between different process zones, preventing excessive bending or stretching deformation, and improving operating efficiency.

[0021] The present invention is further configured such that: the heating mechanism includes a heating shell, a mounting bracket disposed within the heating shell, a glass protective tube mounted on the mounting bracket, an induction heating coil disposed on the body, and a heating tube sleeved on the outside of the glass protective tube, wherein the induction heating coil is sleeved on the outside of the heating tube for induction heating treatment of the photovoltaic busbar.

[0022] By adopting the above technical solution, the busbar is insulated and heat-insulated through the glass protective tube, the external heating tube provides the heating temperature field, and the induction coil provides a high-frequency induction heat source, thus realizing rapid, non-contact heating.

[0023] The present invention is further configured such that: a fan is provided inside the machine body, and the fan is used to send air to the heating mechanism.

[0024] By adopting the above technical solution, air can be introduced into the heating shell to cool it down, disperse local high-temperature areas, and prevent local overheating.

[0025] In summary, this utility model has the following beneficial effects: 1. Before being heated, the photovoltaic busbar enters a cooling water tank and is fully contacted by the cooling cleaning fluid, which can effectively remove impurities such as oil, metal dust, and oxides from its surface.

[0026] 2. The cooling water tank pre-cools the manifold to ensure a uniform temperature distribution and a more stable initial temperature before entering the induction heating zone.

[0027] 3. By setting up a preliminary humidification component and a secondary humidification component, high-pressure airflow is used to blow away residual cooling cleaning liquid on the surface of the photovoltaic busbar before and after induction heating, which can effectively remove the residual liquid and prevent it from affecting the heating quality and insulation performance. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] Figure 2 This is a front sectional view of the present invention.

[0030] Figure 3 This is a side sectional view of the present invention.

[0031] In the diagram: 1. Machine body; 2. Wetting mechanism; 3. Heating mechanism; 21. Wetting shell; 22. Preliminary wetting chamber; 23. Secondary wetting chamber; 221. Preliminary wetting path; 231. Secondary wetting path; 4. Drive mechanism; 222. First feed inlet; 223. First discharge outlet; 232. Second feed inlet; 233. Second discharge outlet; 234. Straightening wheel; 5. Cooling water tank; 51. Preliminary immersion path; 52. Secondary immersion path; 41. Drive motor; 42. Active wire guide wheel; 43. Driven wire guide wheel; 6. Winding structure; 61. Wire inlet wheel; 62. First winding wheel; 63. Second winding wheel; 64. Third winding wheel; 65. First guide wheel; 66. Second guide wheel; 67. Wire outlet wheel; 31. Mounting bracket; 32. Glass protective tube; 33. Induction heating coil; 34. Heating tube; 35. Air inlet pipe; 36. Heating housing; 7. Fan; 8. Tensioning mechanism. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings.

[0033] like Figure 1 and Figure 2 As shown, this utility model discloses a photovoltaic busbar induction annealing device with secondary wetting, comprising a body 1, a wetting mechanism 2 and a heating mechanism 3 on the body 1, and a cooling water tank 5 below the wetting mechanism 2 and the heating mechanism 3, which stores cooling cleaning fluid. The photovoltaic busbar has a preliminary immersion path 51 and a secondary immersion path 52 in the cooling water tank. The wetting mechanism 2 includes a wetting shell 21, in which a preliminary wetting chamber 22 and a secondary wetting chamber 23 are formed in sequence. The two are set independently. The nozzle in the wetting shell 21 blows away the residual cooling cleaning fluid on the surface of the photovoltaic busbar with high-pressure airflow to ensure that the busbar is dry and clean, thereby improving the heating effect and the quality of subsequent processing.

[0034] like Figure 2 As shown, the lower end of the preliminary humidification chamber 22 is provided with a first inlet 222, and the upper end of the preliminary humidification chamber 22 is provided with a first outlet 223. The two form a vertically arranged preliminary humidification path 221, which is conducive to the downward dripping of cooling cleaning liquid and gravity discharge. The air outlet of the nozzle in the preliminary humidification chamber 22 is arranged inclined downward towards the preliminary humidification path 221, so that the sprayed airflow can form an angle along the running direction of the photovoltaic busbar, thereby improving the airflow impact efficiency and enhancing the drying effect.

[0035] The secondary drying chamber 23 has a second inlet 232 at its lower end and a second outlet 233 at its upper end, forming a vertical secondary drying path 231. A straightening wheel 234 is provided above the second inlet 232. The straightening wheel 234 is used to correct the posture of the photovoltaic busbar before it enters the secondary drying chamber 23 to prevent it from shifting or knotting, which is conducive to the stable operation of the drying process. The nozzle outlet end in the secondary drying chamber 23 is also inclined downward towards the secondary drying path 231, so that the sprayed airflow can form an angle along the running direction of the photovoltaic busbar, thereby improving the drying effect.

[0036] The cooling water tank 5 is located below the heating mechanism 3 and has a box-like structure. It contains cooling and cleaning fluid, which is used to cool and clean the photovoltaic busbar in its initial state. It also serves to collect the cooling and cleaning fluid for easy recycling or periodic replacement. The photovoltaic busbar has a preliminary immersion path 51 and a secondary immersion path 52 in the cooling water tank 5. The machine body 1 is equipped with a winding structure 6, which guides the photovoltaic busbar through the cooling water tank 5 and into the preliminary humidification chamber 22 to form the preliminary immersion path 51. After being processed by the heating mechanism 3, the photovoltaic busbar passes through the cooling water tank 5 again and enters the secondary humidification chamber 23 to form the secondary immersion path 52. The photovoltaic busbar completes the processing by sequentially passing through the preliminary immersion path 51, the preliminary humidification path 221, the heating mechanism 3, the secondary immersion path 52, and the secondary humidification path 231.

[0037] like Figure 3 As shown, the drive mechanism 4 is used to drive the photovoltaic busbar through the initial drying chamber 22, the heating mechanism 3 and the secondary drying chamber 23 in sequence to complete the secondary drying treatment before and after annealing. The drive mechanism 4 includes a drive motor 41, an active wire guide wheel 42 located in the cooling water tank 5 and a driven wire guide wheel 43 located above the heating mechanism 3. The drive motor 41 drives the active wire guide wheel 42 to rotate, thereby driving the entire busbar forward. Since the active wire guide wheel 42 is located in the cooling water tank 5, it can achieve cooling treatment during the traction process.

[0038] The machine body 1 is also equipped with a tensioning mechanism 8, which is located on one side of the cooling water tank 5. It is used to apply appropriate tension during the photovoltaic busbar conveying process to prevent loosening, wrinkling or skipping of wires and ensure the stability of the whole machine operation.

[0039] like Figure 1 As shown, the machine body 1 is also equipped with a winding structure 6, which includes: an inlet wheel 61, a first winding wheel 62, a second winding wheel 63, a third winding wheel 64, a first guide wheel 65, a second guide wheel 66, and an outlet wheel 67. The photovoltaic busbar first enters the system through the inlet wheel 61, and after being wound by the first winding wheel 62 and the second winding wheel 63, it enters the cooling water tank 5 and is wound on the active wire guide wheel 42 inside the cooling water tank 5. Then it passes upward through the preliminary blowing chamber 22 and completes the blowing process along the first blowing path. Next, it is wound by the first guide wheel 65 to the driven wire guide wheel 43 and then enters the heating mechanism 3 for heating and annealing. Afterward, it enters the cooling water tank 5 again to complete the secondary cooling. Then, it enters the secondary blowing chamber 23 through the straightening wheel 234, and after being further dried by the nozzle, it is finally discharged from the outlet wheel 67 through the second guide wheel 66, the first winding wheel 62, and the second winding wheel 63.

[0040] The heating mechanism 3 is used to perform induction heating annealing on the photovoltaic busbar to improve its ductility and grain structure stability. The heating mechanism 3 includes a heating shell 36, a mounting bracket 31 inside the heating shell 36, a glass protective tube 32 mounted on the mounting bracket 31, an induction heating coil 33 mounted on the body 1, and a heating tube 34 sleeved on the outside of the glass protective tube 32. The induction heating coil 33 is sleeved on the outside of the heating tube 34. When energized, it generates an alternating electromagnetic field to perform non-contact induction heating on the photovoltaic busbar inside. The glass protective tube 32 physically isolates the busbar from the induction heating coil 33, avoiding direct high-temperature action and improving safety. In order to prevent oxidation of the heating area, the glass protective tube 32 is provided with an air inlet pipe 35, through which nitrogen gas can be injected to protect the surface of the busbar from high-temperature oxidation and improve the quality of the finished product. In addition, a fan 7 is also provided inside the body 1 to supply air to the heating mechanism 3 to assist in cooling, exhausting, and improving gas circulation efficiency, further improving system stability.

[0041] The working process of this utility model is as follows: The photovoltaic busbar first passes through the inlet wheel 61, the first winding wheel 62, and the second winding wheel 63 in sequence, then goes down through the third winding wheel 64 and enters the cooling water tank 5. After passing through the preliminary immersion path 51 for preliminary cooling and cleaning, it is wound on the active wire guide wheel 42. Then it goes up into the preliminary blowing chamber 22, where residual coolant on the surface is blown off by the nozzle. After being blown wet, it passes through the first guide wheel 65 and is wound on the driven wire guide wheel 43. Then it goes down again through the heating mechanism 3 for heating and annealing, and then enters the cooling water tank 5 again and passes through the secondary immersion path 52 to complete the secondary cooling treatment. It then enters the secondary blowing chamber 23 through the straightening wheel 234 and is further dried by the nozzle. After being blown wet, it passes through the second guide wheel 66, the first winding wheel 62, and the second winding wheel 63 in sequence, and then exits through the outlet wheel 67.

[0042] The above are merely preferred embodiments of this utility model. Therefore, all equivalent changes or modifications made in accordance with the structure, features and principles of this utility model patent application are included within the scope of this utility model patent application.

Claims

1. A photovoltaic busbar induction annealing device with secondary wetting, comprising a body (1), wherein the body (1) is provided with a wetting mechanism (2) and a heating mechanism (3), characterized in that: The humidification mechanism (2) includes a humidification housing (21), which has a primary humidification chamber (22) and a secondary humidification chamber (23). The machine body (1) is provided with a drive mechanism (4), which drives the photovoltaic busbar to pass through the initial humidification chamber (22), the heating mechanism (3) and the secondary humidification chamber (23) in sequence to achieve secondary humidification treatment before and after heating.

2. The photovoltaic busbar induction annealing device with secondary blowing according to claim 1, characterized in that: The preliminary humidification chamber (22) is provided with a first inlet (222) and a first outlet (223); The first inlet (222) and the first outlet (223) form a vertical preliminary wetting path (221); The nozzles in the preliminary humidification chamber (22) are inclined toward the preliminary humidification path (221).

3. The photovoltaic busbar induction annealing device with secondary blowing according to claim 1, characterized in that: The secondary blowing chamber (23) is provided with a second inlet (232) and a second outlet (233); The second inlet (232) and the second outlet (233) form a secondary blowing path (231); A straightening wheel (234) is provided above the second feed inlet (232). The straightening wheel (234) is used to correct the attitude of the confluence belt and keep the secondary blowing path (231) vertical. The nozzles in the secondary humidification chamber (23) are inclined toward the secondary humidification path (231).

4. The photovoltaic busbar induction annealing device with secondary blowing according to claim 3, characterized in that: A cooling water tank (5) is provided below the blowing and wetting mechanism (2) and the heating mechanism (3). The photovoltaic busbar has a preliminary immersion path (51) and a secondary immersion path (52) in the cooling water tank (5).

5. The photovoltaic busbar induction annealing device with secondary blowing according to claim 4, characterized in that: The body (1) is provided with a winding structure (6), which guides the photovoltaic busbar through the cooling water tank (5) and into the initial immersion chamber (22) to form the initial immersion path (51); the photovoltaic busbar is processed by the heating mechanism (3) and then passes through the cooling water tank (5) again and enters the secondary immersion chamber (23) to form the secondary immersion path (52).

6. The photovoltaic busbar induction annealing device with secondary blowing according to claim 5, characterized in that: The photovoltaic busbar is processed sequentially through a preliminary immersion path (51), a preliminary drying path (221), a heating mechanism (3), a secondary immersion path (52), and a secondary drying path (231).

7. The photovoltaic busbar induction annealing device with secondary blowing according to claim 5, characterized in that: The drive mechanism (4) includes a drive motor (41), an active wire guide wheel (42) and a driven wire guide wheel (43) mounted on the body (1). The drive motor (41) drives the active wire guide wheel (42) to rotate. The active wire guide wheel (42) is located inside the cooling water tank (5), and the driven wire guide wheel (43) is located above the heating mechanism (3).

8. The photovoltaic busbar induction annealing device with secondary blowing according to claim 7, characterized in that: The machine body (1) is also provided with a tensioning mechanism (8). The winding structure (6) includes an inlet wheel (61), a first winding wheel (62) and a second winding wheel (63) located on both sides of the driven winding wheel (43), a third winding wheel (64) located below the second winding wheel (63), a first guide wheel (65) located above the first outlet (223), a second guide wheel (66) located above the second outlet (233), and an outlet wheel (67) located above the tensioning mechanism (8).

9. The photovoltaic busbar induction annealing device with secondary blowing according to claim 1, characterized in that: The heating mechanism (3) includes a heating shell (36), a mounting bracket (31) disposed in the heating shell (36), a glass protective tube (32) mounted on the mounting bracket (31), an induction heating coil (33) disposed on the body (1), and a heating tube (34) sleeved on the outside of the glass protective tube (32). The induction heating coil (33) is sleeved on the outside of the heating tube (34) and is used to perform induction heating treatment on the photovoltaic busbar.

10. The photovoltaic busbar induction annealing device with secondary blowing according to claim 1, characterized in that: The body (1) is equipped with a fan (7), which is used to blow air to the heating mechanism (3).

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