Annealing device of photovoltaic bus bar

Abstract

The utility model discloses an annealing device for a photovoltaic bus bar, which comprises a machine body, a blowing mechanism and a heating mechanism are arranged on the machine body, a cooling water tank is arranged below the blowing mechanism and the heating mechanism, a driving mechanism is further arranged on the machine body, and the driving mechanism drives the bus bar to sequentially pass through the heating mechanism, the cooling water tank and the blowing mechanism. The wet blowing mechanism comprises a wet blowing box and a wet blowing device arranged in the wet blowing box, a wet blowing channel is arranged in the wet blowing device, annular air nozzles are formed in the inner wall of the wet blowing channel, a wet blowing channel is arranged in the wet blowing device, annular air nozzles are formed in the inner wall of the wet blowing channel, and a wet blowing annular groove is formed in the wet blowing device. The opening diameter of the cross section of the wet blowing ring groove is gradually reduced from the end away from the air jet opening to the end close to the air jet opening. According to the utility model, the air can act on the surface of the confluence belt more fully, the air injection pressure is improved, the wet blowing is more uniform, and the wet blowing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic busbar technology, and in particular to an annealing device for photovoltaic busbars. Background Technology

[0002] Annealing equipment for photovoltaic busbars is a specialized device used to heat-treat photovoltaic busbars. Its main purpose is to improve the mechanical and electrical properties of the metal material, as well as its flexibility and stability, through heating and cooling processes, so as to adapt to subsequent welding or bending processes.

[0003] Existing annealing equipment is equipped with a humidification mechanism to remove coolant from the surface of the photovoltaic busbar. This humidification mechanism usually has nozzles on both sides of the busbar, which spray air onto the busbar through the nozzles. During operation, the busbar may sway or shake slightly, and since the nozzles only spray air in one direction, the gas cannot cover the entire busbar, resulting in insufficient humidification and affecting subsequent processing. Utility Model Content

[0004] The purpose of this invention is to provide an annealing device for photovoltaic busbars, which allows the gas to act more fully on the surface of the busbar, increases the jet pressure, makes the wetting more uniform, and improves the wetting efficiency.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an annealing device for a photovoltaic busbar, comprising a body, a humidification mechanism and a heating mechanism on the body, a cooling water tank below the humidification mechanism and the heating mechanism, and a driving mechanism on the body. The driving mechanism drives the busbar to pass sequentially through the heating mechanism, the cooling water tank and the humidification mechanism. The humidification mechanism includes a humidification box and a humidifier disposed in the humidification box. The humidifier is provided with a humidification channel, and an annular air jet is opened on the inner wall of the humidification channel. The humidifier is provided with a humidification ring groove, which is connected to the humidification channel through the air jet. The opening diameter of the cross-section of the humidification ring groove gradually decreases from the end away from the air jet towards the end closer to the air jet.

[0006] A further feature of this invention is that the blower is provided with an air inlet, the air inlet is connected to an air inlet channel, and the air inlet channel is connected to the blower ring groove.

[0007] A further feature of this invention is that the heating mechanism includes a back plate mounted on the body, a mounting bracket on the back plate, a glass protective tube for passing through the busbar on the mounting bracket, an induction heating coil and a heating tube on the back plate, the induction heating coil being sleeved on the heating tube, and the glass protective tube passing through the heating tube.

[0008] A further feature of this invention is that the glass protective tube is provided with an inlet pipe for injecting nitrogen gas.

[0009] A further feature of this invention is that the back plate is provided with heat dissipation holes.

[0010] A further feature of this invention is that the driving mechanism includes a driving motor, the cooling water tank is provided with an active wire guide wheel, the driving motor drives the active wire guide wheel to rotate, and the upper end of the heating mechanism is provided with a driven wire guide wheel.

[0011] A further feature of this invention is that a tensioning mechanism is provided on one side of the cooling water tank.

[0012] A further feature of this invention is that: an inlet wheel is provided on one side of the wetting mechanism, a first guide wheel is provided on one side of the driven guide wheel, a second guide wheel is provided above the wetting mechanism, an outlet wheel is provided above the tensioning mechanism, and a third guide wheel is provided between the outlet wheel and the driven guide wheel.

[0013] A further feature of this invention is that the tensioning mechanism includes a tension swing arm with one end rotatably mounted on the back plate, a tension wheel at one end of the tension swing arm, and the other end of the tension swing arm rotatably connected to the machine body. A drive cylinder is provided on the machine body, and the middle part of the tension swing arm is connected to the piston rod end of the drive cylinder. The drive cylinder drives the tension swing arm to swing.

[0014] A further feature of this invention is that the machine body is provided with a water filtration mechanism, the water filtration mechanism includes a water inlet pipe, the water inlet pipe is connected to a cooling water tank, and a cotton core water purifier is provided on the water inlet pipe.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. This invention allows the gas to act more fully on the surface of the manifold, resulting in more uniform wetting.

[0017] 2. After the gas accumulates in the humidification annular groove, it is ejected to form a continuous and stable annular airflow, which increases the jet pressure and improves the humidification efficiency.

[0018] 3. The busbar of this utility model has a clear operating path and appropriate tension, avoiding looseness, confusion and slippage of the busbar.

[0019] 4. This utility model heats the busbar uniformly and stably while preventing it from oxidizing due to heat. Attached Figure Description

[0020] Figure 1 This is a front view of the present invention.

[0021] Figure 2This is a side view of the present invention.

[0022] Figure 3 This is a cross-sectional view of the humidifier of this utility model.

[0023] Figure 4 This is a schematic diagram of the heating mechanism of this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of the back plate of this utility model.

[0025] Figure 6 This is a structural schematic diagram of the cooling water tank of this utility model.

[0026] In the diagram: 1. Main body; 2. Cooling water tank; 3. Humidifier; 4. Humidification channel; 5. Air nozzle; 6. Humidification ring groove; 7. Air inlet; 8. Air inlet channel; 9. Back plate; 10. Mounting bracket; 11. Glass protection tube; 12. Induction heating coil; 13. Heating tube; 14. Humidification box; 15. Air inlet pipe; 16. Heat dissipation hole; 17. Drive motor; 18. Active wire guide wheel; 19. Driven wire guide wheel; 20. Wire inlet wheel; 21. First wire guide wheel; 22. Second wire guide wheel; 23. Wire outlet wheel; 24. Third wire guide wheel; 25. Tension swing arm; 26. Tensioning wheel; 27. Drive cylinder; 28. Water inlet pipe; 29. ​​Cotton core water purifier. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figures 1 to 3 As shown, the annealing device for a photovoltaic busbar of this utility model includes a body 1, on which a humidification mechanism, a heating mechanism, a cooling water tank 2, and a driving mechanism are provided. The humidification mechanism includes a humidification box 14 and a humidifier 3 disposed inside the box. The humidifier 3 has a longitudinally penetrating humidification channel 4 for guiding the busbar through. An annular air jet 5 is provided on the inner wall of the humidification channel 4. A humidification annular groove 6 is provided inside the humidifier 3. The air jet 5 is connected to the humidification annular groove 6. The humidification annular groove 6 is designed with a tapered gradually changing structure, with the diameter of the end near the air jet 5 being larger than the diameter of the end away from the air jet 5, so that the gas is pressurized and sprayed out evenly. The side wall of the blower 3 is provided with an air inlet 7, which is connected to an external air supply source. An air inlet channel (8) is connected to the air inlet (7), which is connected to the blower ring groove (6). The air inlet channel (8) is perpendicular to the air inlet (7), and the diameter of the air inlet (7) is larger than the diameter of the air inlet channel (8) to increase the air flow rate. This structure can effectively remove the coolant from the surface of the confluence belt.

[0029] according to Figure 4As shown, the heating mechanism includes a back plate 9 mounted on the body 1. The back plate 9 has a ring-shaped heating tube 13 and an induction heating coil 12 sleeved around the heating tube 13. High-frequency alternating current is applied to the induction heating coil 12, generating an alternating electromagnetic field and producing an induced current. When this induced current flows within the metal, it generates heat due to the metal's resistance, rapidly heating the heating tube 13 and creating a heating zone within it. Induction heating is a non-contact heating method; the heating process does not require direct flame or resistance contact, resulting in fast heating and high efficiency. A mounting bracket 10 is provided on the back plate 9, and a longitudinally penetrating glass protective tube 11 runs through the entire heating zone. The glass protective tube 11 has a hollow interior for the busbar to pass through. Heat is transferred from the heating tube 13 to the glass protective tube 11, achieving uniform heating and annealing of the busbar. An air inlet pipe 15 is also provided on the outer wall of the glass protective tube 11. The air inlet pipe 15 can continuously fill the glass protective tube 11 with nitrogen to prevent the manifold from being oxidized during the heating process.

[0030] according to Figure 5 As shown, the back plate 9 has several heat dissipation holes 16 to prevent the structure from being damaged due to excessive temperature.

[0031] according to Figure 6 As shown, the driving mechanism includes a drive motor 17 located inside the machine body 1 and an active wire guide wheel 18 installed inside the cooling water tank 2. The drive motor 17 is connected to the active wire guide wheel 18 through a transmission shaft, driving it to rotate, thereby driving the entire busbar to move continuously along the process path.

[0032] The cooling water tank 2 is a sealed box structure located below the heating mechanism. It is filled with coolant and has a manifold inside. The manifold enters the cooling water tank 2 from the heating mechanism and is wound around the active cable guide 18 inside the tank. It achieves rapid cooling through the coolant and eliminates thermal stress.

[0033] In addition, a water filtration mechanism is installed inside the body 1. The water filtration mechanism includes an inlet pipe 28 connected to the cooling water tank 2 and a cotton core water purifier 29 installed on the inlet pipe 28, which has the function of efficiently filtering impurities, scale and particles.

[0034] The body 1 is equipped with a tensioning mechanism, which includes a tension swing rod 25 with one end rotatable. The free end of the tension swing rod 25 is equipped with a rotatable tension wheel 26. The tension swing rod 25 is connected to a drive cylinder 27. The drive cylinder 27 provides downward tension by adjusting the rotation of the swing rod to prevent the bus belt from loosening, knotting, or slipping.

[0035] The wet-blowing mechanism has an inlet wheel 20 on one side and a first guide wheel 21 on one side of the driven wire guide wheel 19. A second guide wheel 22 is provided above the wet-blowing mechanism, and an outlet wheel 23 is provided above the tensioning mechanism. A third guide wheel 24 is provided between the driven wire guide wheel 19 and the outlet wheel 23. All the guide wheels are grooved guide wheels to ensure stable wire routing.

[0036] The basic working principle of this utility model is as follows: The photovoltaic busbar first passes through the inlet pulley 20 and the first guide pulley 21 and is wound around the driven guide pulley 19. Then the busbar passes downward through the glass protection tube 11 and enters the cooling water tank 2, and is wound around the active guide pulley 18. Then the busbar passes upward through the blowing channel 4, passes through the second guide pulley 22 and is wound around the driven guide pulley 19 again. Then it passes through the third guide pulley 24 and is wound around the outlet pulley 23. It continues downward to the tension pulley 26, and then passes through the tension pulley 26 back to the outlet pulley 23 and exits. During this process, the induction heating coil 12 heats the heating tube 13, maintaining a high temperature inside the heating tube 13. The busbar undergoes annealing due to the heat, and nitrogen gas is injected through the air inlet pipe 15 to prevent oxidation of the busbar. The cooling water tank 2 is filled with coolant to cool the busbar. Gas is injected into the humidification ring groove 6 through the air inlet channel 8 on the humidifier 3, and the gas is sprayed onto the busbar through the jet nozzle 5, thus completing the humidification process. Throughout the process, the tensioning mechanism keeps the busbar taut to prevent it from becoming loose, tangled, or slipping.

[0037] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An annealing device for a photovoltaic busbar, comprising a body (1), wherein a humidification mechanism and a heating mechanism are provided on the body (1), and a cooling water tank (2) is provided below the humidification mechanism and the heating mechanism, characterized in that: The body (1) is also provided with a drive mechanism, which drives the busbar to pass through the heating mechanism, the cooling water tank (2) and the humidification mechanism in sequence. The humidification mechanism includes a humidification box (14) and a humidifier (3) provided in the humidification box. The humidifier (3) is provided with a humidification channel (4). An annular air jet (5) is opened on the inner wall of the humidification channel (4). The humidifier (3) is provided with a humidification ring groove (6). The humidification ring groove (6) is connected to the humidification channel (4) through the air jet (5). The opening diameter of the cross-section of the humidification ring groove (6) gradually decreases from the end away from the air jet (5) to the end close to the air jet (5).

2. The annealing device for a photovoltaic busbar according to claim 1, characterized in that: The blower (3) is provided with an air inlet (7), and an air inlet channel (8) is connected to the air inlet (7). The air inlet channel (8) is connected to the blower ring groove (6).

3. The annealing device for a photovoltaic busbar according to claim 1, characterized in that: The heating mechanism includes a back plate (9) disposed on the body (1), a mounting bracket (10) disposed on the back plate (9), a glass protective tube (11) for passing through the busbar on the mounting bracket (10), an induction heating coil (12) and a heating tube (13) disposed on the back plate (9), the induction heating coil (12) being sleeved on the heating tube (13), and the glass protective tube (11) passing through the heating tube (13).

4. The annealing device for a photovoltaic busbar according to claim 3, characterized in that: The glass protective tube (11) is provided with an air inlet pipe (15) for injecting nitrogen.

5. The annealing device for a photovoltaic busbar according to claim 3, characterized in that: The back plate (9) is provided with heat dissipation holes (16).

6. The annealing device for a photovoltaic busbar according to claim 1, characterized in that: The driving mechanism includes a drive motor (17), and the cooling water tank (2) is provided with an active wire guide wheel (18). The drive motor (17) drives the active wire guide wheel (18) to rotate, and the upper end of the heating mechanism is provided with a driven wire guide wheel (19).

7. The annealing device for a photovoltaic busbar according to claim 6, characterized in that: A tensioning mechanism is provided on one side of the cooling water tank (2).

8. The annealing device for a photovoltaic busbar according to claim 7, characterized in that: The blowing mechanism has an inlet wheel (20) on one side, the driven thread guide wheel (19) has a first thread guide wheel (21) on one side, the blowing mechanism has a second thread guide wheel (22) above it, the tensioning mechanism has an outlet wheel (23) above it, and the outlet wheel (23) is located between the outlet wheel (23) and the driven thread guide wheel (19).

9. The annealing device for a photovoltaic busbar according to claim 1, characterized in that: The body (1) is also provided with a tensioning mechanism, which includes a tension swing rod (25) with one end rotatably mounted on the back plate (9). One end of the tension swing rod (25) is provided with a tension wheel (26), and the other end of the tension swing rod (25) is rotatably connected to the body. The body (1) is provided with a drive cylinder (27), and the middle part of the tension swing rod (25) is connected to the piston rod end of the drive cylinder (27). The drive cylinder (27) drives the tension swing rod (25) to swing.

10. The annealing device for a photovoltaic busbar according to claim 1, characterized in that: The machine body (1) is provided with a water filtration mechanism, which includes a water inlet pipe (28) connected to a cooling water tank (2). A cotton core water purifier (29) is provided on the water inlet pipe (28).

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