Photovoltaic module welding light source adjusting device

Abstract

The utility model relates to the technical field of series welding machines, in particular to a photovoltaic module welding light source adjusting device which comprises a welding light source body and a base plate, two T-shaped sliding grooves are formed in the top face of the base plate, a limiting groove is formed in the top face of the base plate, and a welding mechanism is connected to the top face of the base plate in a sliding mode. The welding mechanism comprises a power supply controller, the power supply controller can control the output power of a welding light source body, the welding light source body preheats a photovoltaic cell, after a period of time, the power supply controller controls an electric telescopic rod to start, and the electric telescopic rod lifts a mounting plate and the welding light source body together; the welding light source body is in contact with the photovoltaic battery piece, at the moment, the photovoltaic battery piece and an electrode needing to be welded are heated and welded, the problem of high production cost caused by loss of the battery piece due to rapid temperature rise of an existing series welding machine during welding is solved, and the welding light source has the advantage that the production cost of the photovoltaic battery piece is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of string welding machines, in particular to a photovoltaic component welding light source adjustment device. Background Art

[0002] The welding light source plays a key role in the stringer welding process. In photovoltaic module welding, a welding light source typically refers to a beam of light capable of generating sufficient energy, such as a laser light source or a strong light source (e.g., high-energy-density infrared light). Its primary function is to melt the solder by providing energy, thereby joining components such as the electrodes of the photovoltaic cell. For example, a laser welding light source can generate a high-energy-density laser beam. This laser beam is focused on the welding area, instantly melting the solder and achieving high-precision welding.

[0003] The difference in light source parameters and light source position directly affects the welding quality, and will affect the overall power and weather resistance of the module. Therefore, the adjustment of the welding light source is particularly important in the production of photovoltaic modules.

[0004] However, in the process of using the current welding light source, it was found that there are at least the following technical problems: in the existing string welding machines, the welding light source is mostly fixed, and in most cases the position and power of the welding light source cannot be adjusted at will. Therefore, preheating before welding will occur, resulting in a low preheating temperature of the battery cell before the formal welding, and rapid heating during welding will cause damage to the battery cell. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides a photovoltaic module welding light source adjustment device to solve the technical problems that the power and position of the welding light source in the existing string welding machine are difficult to control and adjust, and the rapid temperature rise during welding will cause damage to the battery cells, resulting in higher production costs.

[0007] (2) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A photovoltaic module welding light source adjustment device includes a stringer body and a welding light source body, including a substrate, which is installed inside the stringer body, and the top surface of the substrate is provided with two T-shaped slide grooves, the top surface of the substrate is provided with a limiting groove, the top surface of the substrate is slidably connected to a welding mechanism, one end of the substrate is provided with a driving mechanism, the welding mechanism includes a fixing plate, the driving mechanism includes a motor, and the motor is electrically connected to the control device of the stringer body.

[0010] Preferably, the base plate is fixedly connected to fixing blocks at both ends of the limiting groove, and one end of the base plate is fixedly connected to a connecting plate.

[0011] Preferably, the motor is fixedly mounted on the top surface of the connecting plate, the output shaft of the motor is fixedly connected to a coupling, the motor is fixedly connected to a screw rod via the coupling, and the screw rod is rotatably connected to the two fixed blocks.

[0012] Preferably, two T-shaped sliding blocks are fixedly connected to the bottom surface of the fixed plate, and the two T-shaped sliding blocks are slidably connected to the two T-shaped sliding grooves respectively.

[0013] Preferably, the bottom surface of the fixing plate is highly connected to a limiting block, a thread groove is provided on the surface of the limiting block, and the limiting block is threadedly connected to the screw rod through the thread groove.

[0014] Preferably: a mounting groove is provided on the top surface of the fixing plate, an electric telescopic rod and a power controller are fixedly installed on the inner side of the mounting groove, a cable is fixedly connected to the power controller, the cable passes through the fixing plate, and the end of the cable away from the power controller is connected to the string welding machine body, the power controller is electrically connected to the electric telescopic rod, and the power controller includes a microprocessor (CPU), an analog-to-digital converter (ADC), a digital-to-analog converter (DAC) and a power semiconductor device.

[0015] Preferably, the telescopic end of the electric telescopic rod is fixedly connected to a mounting plate, and a plurality of temperature sensors are fixedly mounted on the top surface of the mounting plate.

[0016] Preferably, the welding light source body is fixedly connected to the side wall of the mounting plate.

[0017] (3) Beneficial effects

[0018] 1. The present application is provided with a welding mechanism, which includes a power supply controller, which can control the output power of the welding light source body. The welding light source body preheats the photovoltaic cell. After a period of time, the power supply controller controls the electric telescopic rod to start, and the electric telescopic rod lifts the mounting plate and the welding light source body together, so that the welding light source body contacts the photovoltaic cell. At this time, the heat generated by the welding light source body is directly transferred to the photovoltaic cell. At this time, the photovoltaic cell and the electrodes to be welded are heated and welded, avoiding the problem of rapid heating of the existing string welding machine during welding, which will cause damage to the cell and lead to higher production costs. Therefore, the present application has the problem of reducing the production cost of photovoltaic cells.

[0019] 2. The present application is provided with a driving mechanism and a welding mechanism. When a part of the photovoltaic cells are welded, the string welding machine body controls the motor to drive the coupling to rotate, and the coupling drives the screw to rotate. When the screw rotates, the threaded groove opened by the limit block cooperates with the screw, so that the limit block can drive the fixed plate to slide on the T-shaped slide groove and the limit groove, thereby moving the welding light source body above the substrate. After the welding light source body changes its position, welding is performed on other positions of the photovoltaic cells that need to be welded, so that the present application has the effect of adjusting the position of the welding light source body. In combination with the electric telescopic rod, it can achieve the effect of welding photovoltaic cells of more sizes or dimensions, making the present application highly applicable.

[0020] In this application, a power controller and a temperature sensor are provided. The temperature sensor constantly detects the temperature of the welding part between the photovoltaic cell and the welding light source body. When the temperature sensor detects that the temperature of the welding area reaches a preset value, the temperature sensor transmits an electrical signal to the power controller, and the power controller automatically controls the welding light source body to shut down, so that this application has the effect of automatically controlling the welding time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0022] Figure 1 This is the overall structural diagram of the device of the utility model;

[0023] Figure 2 This is a partial cross-sectional structural diagram of the driving mechanism of the utility model;

[0024] Figure 3 This is a side structural diagram of the welding mechanism of the present utility model;

[0025] Figure 4 This is an exploded structural diagram of the welding mechanism of the present utility model;

[0026] Figure 5 This is a structural diagram of the electric telescopic rod and mounting plate of the utility model.

[0027] Legend: 1. Base plate; 2. Motor; 3. Welding mechanism; 4. Cable; 101. T-shaped slide; 102. Limiting groove; 103. Fixing block; 104. Connecting plate; 201. Coupling; 202. Screw; 301. Fixing plate; 302. Limiting block; 303. Threaded groove; 304. T-shaped slider; 305. Power controller; 306. Electric telescopic rod; 307. Mounting plate; 308. Temperature sensor; 309. Welding light source body; 310. Mounting groove. DETAILED DESCRIPTION

[0028] The embodiment of the present application provides a photovoltaic module welding light source adjustment device, which effectively solves the problem that the power and position of the welding light source in the existing string welding machine are difficult to control and adjust, and the rapid temperature rise during welding will cause damage to the battery cells, resulting in high production costs.

[0029] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the technical solution in the embodiment of the present application effectively solves the technical problems that the power and position of the welding light source in the existing stringer are difficult to control and adjust, and the rapid temperature rise during welding will cause damage to the battery cells, resulting in high production costs. The overall idea is as follows:

[0030] In response to the problems existing in the prior art, the utility model provides a photovoltaic module welding light source adjustment device, including a stringer body and a welding light source body 309, including a substrate 1, the substrate 1 is installed inside the stringer body, the top surface of the substrate 1 is provided with two T-shaped slide grooves 101, the top surface of the substrate 1 is provided with a limiting groove 102, the top surface of the substrate 1 is slidably connected to a welding mechanism 3, one end of the substrate 1 is provided with a driving mechanism, the welding mechanism 3 includes a fixing plate 301, the driving mechanism includes a motor 2, and the motor 2 is electrically connected to the control device of the stringer body.

[0031] The base plate 1 is fixedly connected to fixing blocks 103 at both ends of the limiting groove 102 , and one end of the base plate 1 is fixedly connected to a connecting plate 104 .

[0032] The motor 2 is fixedly mounted on the top surface of the connecting plate 104 . The output shaft of the motor 2 is fixedly connected to a coupling 201 . The motor 2 is fixedly connected to a screw rod 202 via the coupling 201 . The screw rod 202 is rotatably connected to the two fixed blocks 103 .

[0033] Two T-shaped sliders 304 are fixedly connected to the bottom surface of the fixed plate 301 , and the two T-shaped sliders 304 are slidably connected to the two T-shaped sliding grooves 101 respectively.

[0034] The bottom surface of the fixing plate 301 is highly connected to a limiting block 302 . A thread groove 303 is formed on the surface of the limiting block 302 . The limiting block 302 is threadedly connected to the screw rod 202 via the thread groove 303 .

[0035] A mounting groove 310 is provided on the top surface of the fixing plate 301. An electric telescopic rod 306 and a power controller 305 are fixedly installed on the inner side of the mounting groove 310. The power controller 305 is fixedly connected to a cable 4. The cable 4 passes through the fixing plate 301. The end of the cable 4 away from the power controller 305 is connected to the stringer body. The power controller 305 is electrically connected to the electric telescopic rod 306. The power controller 305 includes a microprocessor (CPU), an analog-to-digital converter (ADC), a digital-to-analog converter (DAC) and power semiconductor devices.

[0036] The telescopic end of the electric telescopic rod 306 is fixedly connected to a mounting plate 307 , and a plurality of temperature sensors 308 are fixedly mounted on the top surface of the mounting plate 307 .

[0037] The welding light source body 309 is fixedly connected to the side wall of the mounting plate 307 .

[0038] By providing a welding mechanism 3, the welding mechanism 3 includes a power controller 305, which can control the output power of the welding light source body 309. The welding light source body 309 preheats the photovoltaic cell. After a period of time, the power controller 305 controls the electric telescopic rod 306 to start. The electric telescopic rod 306 lifts the mounting plate 307 and the welding light source body 309 together, so that the welding light source body 309 contacts the photovoltaic cell. At this time, the heat generated by the welding light source body 309 is directly transferred to the photovoltaic cell. At this time, the photovoltaic cell and the electrodes to be welded are heated and welded, avoiding the problem of high production costs caused by the rapid heating of the existing string welding machine during welding, so that the present application has the problem of reducing the production cost of photovoltaic cells.

[0039] Working principle:

[0040] In the first step, the entire application needs to be set up inside the stringer for use. When the photovoltaic cell needs to be welded, the photovoltaic cell and the welding mechanism are placed and fixed on the top of the welding light source body 309 by the robot arm or other loading device of the stringer body. Then the welding light source body 309 is started to preheat the photovoltaic cell. After a period of time, the power controller 305 controls the electric telescopic rod 306 to start. The electric telescopic rod 306 lifts the mounting plate 307 and the welding light source body 309 together, so that the welding light source body 309 is in contact with the photovoltaic cell. At this time, the heat generated by the welding light source body 309 is directly transferred to the welding light source body 309. To the photovoltaic cell, at this time the photovoltaic cell and the electrodes that need to be welded are heated and welded. When a part of the photovoltaic cell is welded, the string welding machine body controls the motor 2 to drive the coupling 201 to rotate, and the coupling 201 drives the screw 202 to rotate. When the screw 202 rotates, the threaded groove 303 opened by the limit block 302 cooperates with the screw 202, so that the limit block 302 can drive the fixed plate 301 to slide on the T-shaped slide groove 101 and the limit groove 102, thereby moving the welding light source body 309 above the substrate 1. After the welding light source body 309 changes its position, welding is performed on other positions of the photovoltaic cell that need to be welded.

[0041] In the second step, the temperature sensor 308 constantly detects the temperature of the welding area between the photovoltaic cell and the welding light source body 309. When the temperature sensor 308 detects that the temperature of the welding area reaches a preset value, the temperature sensor 308 transmits an electrical signal to the power controller 305, and the power controller 305 automatically controls the welding light source body 309 to turn off.

[0042] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A photovoltaic module welding light source adjustment device, comprising a welding light source body (309), characterized in that: The invention comprises a base plate (1), the top surface of the base plate (1) is provided with two T-shaped sliding grooves (101), the top surface of the base plate (1) is provided with a limiting groove (102), the top surface of the base plate (1) is slidably connected to a welding mechanism (3), and one end of the base plate (1) is provided with a driving mechanism; Wherein, the welding mechanism (3) comprises a fixing plate (301); Wherein, the driving mechanism comprises a motor (2).

2. A photovoltaic module welding light source adjustment device according to claim 1, characterized in that: The base plate (1) is fixedly connected to fixed blocks (103) at both ends of the limiting groove (102), and one end of the base plate (1) is fixedly connected to a connecting plate (104).

3. A photovoltaic module welding light source adjustment device as claimed in claim 2, characterized in that: The motor (2) is fixedly mounted on the top surface of the connecting plate (104); the output shaft of the motor (2) is fixedly connected to a coupling (201); the motor (2) is fixedly connected to a screw rod (202) via the coupling (201); and the screw rod (202) is rotationally connected to two fixed blocks (103).

4. A photovoltaic module welding light source adjustment device as claimed in claim 3, characterized in that: Two T-shaped sliders (304) are fixedly connected to the bottom surface of the fixed plate (301), and the two T-shaped sliders (304) are slidably connected to the two T-shaped sliding grooves (101) respectively.

5. A photovoltaic module welding light source adjustment device as claimed in claim 4, characterized in that: The bottom surface of the fixing plate (301) is highly connected to a limiting block (302), a thread groove (303) is provided on the surface of the limiting block (302), and the limiting block (302) is threadedly connected to the screw rod (202) through the thread groove (303).

6. A photovoltaic module welding light source adjustment device as claimed in claim 5, characterized in that: The top surface of the fixing plate (301) is provided with a mounting groove (310), an electric telescopic rod (306) and a power controller (305) are fixedly mounted on the inner side of the mounting groove (310), the power controller (305) is fixedly connected to a cable (4), and the power controller (305) is electrically connected to the electric telescopic rod (306).

7. A photovoltaic module welding light source adjustment device as claimed in claim 6, characterized in that: The telescopic end of the electric telescopic rod (306) is fixedly connected to a mounting plate (307), and a temperature sensor (308) is fixedly mounted on the top surface of the mounting plate (307).

8. A photovoltaic module welding light source adjustment device as claimed in claim 7, characterized in that: The welding light source body (309) is fixedly connected to the side wall of the mounting plate (307).

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