Photovoltaic module battery string terminal welding integrated equipment

Abstract

The utility model belongs to the technical field of welding equipment, and relates to photovoltaic module battery string terminal welding integrated equipment which comprises a rack, two sets of feeding conveying lines, two sets of discharging conveying lines, a battery string transferring, taking and placing module, a welding rod punching module, a welding rod transferring, taking and placing module, two sets of electromagnetic welding modules and two CCD visual systems. The feeding conveying line and the discharging conveying line are located on the lower portion of the rack, and the battery string transferring, taking and placing module is arranged on the upper portion of the rack in a straddling mode. The electromagnetic welding module is located on one side of the feeding conveying line in the X direction, the welding rod transferring, taking and placing module and the CCD visual system are located above the junction position of the feeding conveying line and the electromagnetic welding module, and the welding rod punching module is located below one side of the welding rod transferring, taking and placing module in the Y direction. The equipment can automatically prepare the terminal welding rod and weld the terminal welding rod to the side edge of a photovoltaic module battery string, the situation that other modules do not work when one electromagnetic welding module is welded is avoided, the working rhythm is balanced, all the modules have a smaller idle time proportion, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a photovoltaic component battery string terminal integrated welding device. Background Art

[0002] Photovoltaic modules (also called solar panels) are the core and most important part of solar power generation systems, including backplanes, frames, junction boxes, photovoltaic cells, welding strips, terminal welding rods, etc. The welding strips will connect photovoltaic cells into battery strings and then conduct current through terminals. Welding strips, photovoltaic cells, and terminal welding rods all rely on welding to form electrical connections.

[0003] Chinese patent CN210245521U discloses a shingled series welding machine, which can use short welding strips or long welding strips to weld solar cells into a shingled series structure. However, the short welding strips or long welding strips here are used as connecting structures between adjacent photovoltaic solar cells. There is no special welding mechanism for terminal welding rods. The welding of terminal welding rods is different from that of welding strips.

[0004] Therefore, it is necessary to provide a device specifically used for welding photovoltaic module cell strings and terminal electrodes to automatically complete the welding operation. Summary of the invention

[0005] The main purpose of the utility model is to provide a photovoltaic module battery string terminal welding integrated equipment, which can automatically prepare terminal welding rods and weld them to the side of the photovoltaic module battery string, and has high working efficiency.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a photovoltaic module battery string terminal welding integrated equipment, including a frame, two sets of feeding conveyor lines, two sets of discharging conveyor lines, a battery string transfer and loading module, a welding rod punching module, a welding rod transfer and loading module, two sets of electromagnetic welding modules and two CCD vision systems;

[0007] The conveying directions of the feeding conveyor line and the discharging conveyor line are both along the X-axis, the feeding conveyor line and the discharging conveyor line are located at the lower part of the frame, and the battery string loading and unloading module straddles the upper part of the frame;

[0008] Each electromagnetic welding module is located on the X-axis side of a feeding conveyor line, the welding rod transfer and placement module and the CCD vision system are located above the intersection of the feeding conveyor line and the electromagnetic welding module, and the welding rod punching module is located below the Y-axis side of the welding rod transfer and placement module.

[0009] Specifically, the battery string transferring and placing module includes a first Y-axis transferring module extending from above the feeding conveyor line to above the discharging conveyor line, a first Z-axis lifting module driven to move horizontally by the first Y-axis transferring module, and a battery string transferring beam driven to be lifted and lowered by the first Z-axis lifting module, the battery string transferring beam extends along the X-axis and is provided with a row of battery string suction cups on both sides of the Y-axis.

[0010] Furthermore, it also includes a string inspection module, and the feeding conveying line, the string inspection module, and the discharging conveying line are arranged in sequence along the Y direction at the lower part of the frame.

[0011] Specifically, it includes two CCD vision systems, each of which is arranged above the intersection of a feeding conveying line and a corresponding electromagnetic welding module.

[0012] Furthermore, the CCD vision system includes a CCD camera fixed to one side of the second Y-axis transfer module, a camera light source for providing illumination for the photographing range of the CCD camera, and a camera height adjustment module for adjusting the height of the CCD camera.

[0013] The beneficial effects of the technical solution of the utility model are:

[0014] This equipment can automatically prepare terminal welding rods and weld them to the sides of the photovoltaic module cell string, avoiding the situation where other modules are not working while one electromagnetic welding module is welding, balancing the work rhythm, making all modules have a smaller idle time ratio, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a photovoltaic module battery string terminal welding integrated device according to an embodiment;

[0016] Figure 2 This is a three-dimensional diagram of the photovoltaic module battery string terminal welding integrated equipment except for the frame and welding rod punching module;

[0017] Figure 3 This is the main view of the CCD vision system;

[0018] Figure 4 A schematic diagram of the local structure of a photovoltaic module.

[0019] The numbers in the figure represent:

[0020] 1- Photovoltaic module battery string terminal welding integrated equipment,

[0021] 11- rack,

[0022] 12a-first feeding conveying line, 12b-second feeding conveying line,

[0023] 13a-first discharging conveying line, 13b-second discharging conveying line,

[0024] 14-battery string transfer and placement module, 141-first Y-axis transfer module, 142-first Z-axis lifting module, 143-battery string transfer beam, 144-battery string suction cup,

[0025] 15-Welding rod punching module,

[0026] 16- welding rod transfer and placement module, 161- second Y-axis transfer module, 162- second Z-axis lifting module, 163- welding rod transfer beam, 164- welding rod suction cup,

[0027] 17a-first electromagnetic welding module, 17b-second electromagnetic welding module,

[0028] 18-Series inspection mechanism,

[0029] 19a-first CCD visual system, 19b-second CCD visual system, 191-CCD camera, 192-camera light source, 193-camera height adjustment module;

[0030] 2- PV panel, 21- battery string, 22- terminal welding rod, 23- welding position. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with specific embodiments.

[0032] Example:

[0033] like Figure 1 and Figure 2 As shown, a photovoltaic module battery string terminal welding integrated equipment 1 of the utility model includes a frame 11, two groups of feeding conveyor lines (a first feeding conveyor line 12a or a second feeding conveyor line 12b), two groups of discharging conveyor lines (a first discharging conveyor line 13a or a second discharging conveyor line 13b), a battery string transfer and placement module 14, a welding rod punching module 15, a welding rod transfer and placement module 16, two groups of electromagnetic welding modules (a first electromagnetic welding module 17a or a second electromagnetic welding module 17b), a string inspection module 18 and two CCD vision systems (a first CCD vision system 19a and a second CCD vision system 19b).

[0034] like Figure 1 , Figure 2 and Figure 4As shown, the conveying directions of the feed conveyor line and the discharge conveyor line are both along the X-axis, the feed conveyor line 12, the string inspection module 18, and the discharge conveyor line 13 are arranged in sequence along the Y direction at the lower part of the frame 11, the battery string transfer and placement module 14 straddles the upper part of the frame 11, the electromagnetic welding module 17 is located on the X-direction side of the feed conveyor line 12, the welding rod transfer and placement module 16 and the CCD vision system are located above the junction of the feed conveyor line 12 and the electromagnetic welding module 17, and the welding rod punching module 15 is located below the Y-direction side of the welding rod transfer and placement module 16.

[0035] The working process of the equipment is as follows: the feeding conveyor line (the first feeding conveyor line 12a or the second feeding conveyor line 12b) moves the photovoltaic module 2 containing the battery string 21 into the equipment along the X-axis, and then completes the positioning; after the electrode punching module 15 cuts and prepares the terminal electrode 22, it is sucked by the electrode transfer and placement module 16 and then placed on the welding edge of the battery string 21. After the CCD vision system (the first CCD vision system 19a or the second CCD vision system 19b) confirms that the relative position of the battery string 21 and the terminal electrode 22 is appropriate, the electromagnetic welding module (the first electromagnetic welding module 17a or the second electromagnetic welding module 17b) welds the two; after the welding is completed, the electrode transfer and placement module 16 picks up the photovoltaic module 2 and moves it to the top of the string inspection mechanism 18 to detect the welding quality. After confirming that the welding quality is fine, the electrode transfer and placement module 16 continues to move and places the photovoltaic module 2 flat on the discharge conveyor line (the first discharge conveyor line 13a or the second discharge conveyor line 13b) to send it out of the equipment.

[0036] like Figure 2 As shown, there are two groups of feed conveyor lines, including a first feed conveyor line 12a and a second feed conveyor line 12b; there are two groups of discharge conveyor lines, including a first discharge conveyor line 13a and a second discharge conveyor line 13b; there are two groups of electromagnetic welding modules, including a first electromagnetic welding module 17a and a second electromagnetic welding module 17b, the first electromagnetic welding module 17a is on the X-axis side of the first feed conveyor line 12a, and the second electromagnetic welding module 17b is on the X-axis side of the second feed conveyor line 12b.

[0037] The first feeding conveyor line 12a and the second feeding conveyor line 12b are equivalent structures, the first discharging conveyor line 13a and the second discharging conveyor line 13b are equivalent structures, and the first electromagnetic welding module 17a and the second electromagnetic welding module 17b are also equivalent structures. When the photovoltaic component 2 enters from the first feeding conveyor line 12a, the first electromagnetic welding module 17a performs welding, and finally discharges from the first discharging conveyor line 13a, which constitutes the first working process; when the photovoltaic component 2 enters from the second feeding conveyor line 12b, the second electromagnetic welding module 17b performs welding, and finally discharges from the second discharging conveyor line 13b, which constitutes the second working process. The two processes share a set of battery string transfer and placement modules 14, welding rod punching modules 15, welding rod transfer and placement modules 16 and string inspection mechanisms 18, and the two process flows are completed alternately. When the first work process is welding, the second work process is transferring the photovoltaic module 2, transferring the terminal welding rod 22 and inspecting the welding quality; when the second work process is welding, the first work process is transferring the photovoltaic module 2, cutting the terminal welding rod 22, transferring the terminal welding rod 22 and inspecting the welding quality of the photovoltaic module 2. The device can automatically prepare the terminal welding rod 22 and weld it to the side of the battery string 21 of the photovoltaic module 2, avoiding the inactivity of other modules when one electromagnetic welding module is welding, balancing the work rhythm, making all modules have a smaller idle time ratio, and improving the work efficiency.

[0038] like Figure 2 As shown, the battery string transfer and placement module 14 includes a first Y-axis transfer module 141 extending from above the feeding conveyor line to above the discharging conveyor line, a first Z-axis lifting module 142 driven to move in translation by the first Y-axis transfer module 141, and a battery string transfer beam 143 driven to move up and down by the first Z-axis lifting module 142. The battery string transfer beam 143 extends along the X-axis and is provided with a row of battery string suction cups 144 on both sides of the Y-axis.

[0039] The battery string suction cup 144 can transfer the photovoltaic module 2 by sucking the upper surface thereof. Since the photovoltaic module 2 is extended along the X-axis and fed into the device, the battery string transfer beam 143 has a structure in which the length direction is along the X-axis.

[0040] like Figure 2 and Figure 4 As shown, the welding rod transferring and placing module 16 includes a second Y-axis transferring module 161 extending from above the welding rod punching module 15 to above the feeding conveying line, a second Z-axis lifting module 162 driven to move in translation by the second Y-axis transferring module 161, and a welding rod transferring beam 163 driven to rise and fall by the second Z-axis lifting module 162. The welding rod transferring beam 163 extends along the Y-axis and is provided with a row of welding rod suction cups 164 at the bottom.

[0041] The welding rod suction cup 164 can transfer the terminal welding rod 22 by sucking the upper surface thereof. Since the length direction of the terminal welding rod 22 is along the Y axis and the welding positions 23 are a plurality of welding points arranged along the Y axis, the length direction of the welding rod transfer beam 163 is along the Y axis.

[0042] like Figures 2 to 4 As shown, the first CCD vision system 19a is arranged above the intersection of the first feeding conveyor line 12a and the first electromagnetic welding module 17a, and the second CCD vision system 19b is arranged above the intersection of the second feeding conveyor line 12b and the second electromagnetic welding module 17b. The CCD vision system includes a CCD camera 191 fixed on one side of the second Y-axis transfer module 161, a camera light source 192 for providing illumination for the shooting range of the CCD camera 191, and a camera height adjustment module 193 for adjusting the height of the CCD camera 191.

[0043] The CCD camera 191 has a specific focal length and field of view. The camera height adjustment module 193 adjusts the height of the CCD camera 191 relative to the feeding conveyor line so that the lens of the CCD camera 191 is equal to the focal length at the middle welding position 23. With the assistance of the camera light source 192, the initial state of the welding position 23 is clearly identified to ensure that the battery string 21 and the terminal welding rod 22 are welded in the correct relative position to avoid misjudgment. Because each photovoltaic module 2 has a wider welding area, in order to avoid an excessively large field of view, it is preferred that the CCD visual system and the electromagnetic welding module are set one-to-one to ensure the clarity of each photographing area.

[0044] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A photovoltaic module battery string terminal welding integrated equipment, characterized in that: It includes a frame, two sets of feeding conveyor lines, two sets of discharging conveyor lines, a battery string loading and unloading module, a welding rod punching module, a welding rod loading and unloading module, two sets of electromagnetic welding modules and two CCD vision systems; The conveying directions of the feeding conveyor line and the discharging conveyor line are both along the X-axis, the feeding conveyor line and the discharging conveyor line are located at the lower part of the frame, and the battery string loading and unloading module straddles the upper part of the frame; Each electromagnetic welding module is located on the X-axis side of a feeding conveyor line, the welding rod transfer and placement module and the CCD vision system are located above the intersection of the feeding conveyor line and the electromagnetic welding module, and the welding rod punching module is located below the Y-axis side of the welding rod transfer and placement module.

2. The photovoltaic module battery string terminal welding integrated equipment according to claim 1, characterized in that: The battery string transfer and placement module includes a first Y-axis transfer module extending from above the feeding conveyor line to above the discharging conveyor line, a first Z-axis lifting module driven to move in translation by the first Y-axis transfer module, and a battery string transfer beam driven to be lifted and lowered by the first Z-axis lifting module, the battery string transfer beam extending along the X-axis and having a row of battery string suction cups on both sides of the Y-axis.

3. The photovoltaic module battery string terminal welding integrated equipment according to claim 2, characterized in that: It also includes a string inspection module, and the feeding conveying line, the string inspection module, and the discharging conveying line are arranged in sequence along the Y direction at the lower part of the frame.

4. The photovoltaic module battery string terminal welding integrated equipment according to claim 1, characterized in that: It includes two CCD vision systems, each of which is arranged above the junction between a feeding conveying line and a corresponding electromagnetic welding module.

5. The photovoltaic module battery string terminal integrated welding equipment according to claim 4 is characterized in that: The CCD vision system includes a CCD camera fixed on one side of the second Y-axis transfer module, a camera light source for providing illumination for the photographing range of the CCD camera, and a camera height adjustment module for adjusting the height of the CCD camera.

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