Double-station bus bar welding equipment

Abstract

The utility model relates to the technical field of photovoltaic module welding, in particular to double-station bus bar welding equipment which comprises a transmission supporting device, a string lifting device, a bar manufacturing device, a transfer device, a welding device and a pressing device. The transfer mechanism is used for carrying a bus bar prepared by the bar making mechanism to the welding device, the pressing device is used for pressing the bus bar during welding, the transmission supporting device can bear two glass plates arranged in parallel, each glass plate bears a group of battery strings, and the string lifting device comprises two string lifting hands arranged above the transmission supporting device. Each string lifting hand is used for lifting a group of battery strings, and the welding device can move to the position above the conveying and supporting device and is used for welding the bus bars to the two ends of each group of battery strings at the same time. The double-station bus bar welding equipment provided by the utility model is provided with two welding stations, so that the production efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component welding, in particular to a double-station busbar welding device. Background Art

[0002] The busbar welding equipment is used to weld busbars to cell strings. The welding process is as follows: After neatly arranged cell strings flow into the busbar welding equipment along with the glass sheet, a string lifting mechanism lifts all the cell strings. The busbars produced by the ribbon making mechanism are then moved to the target position, and the welding mechanism performs the welding. Existing busbar welding equipment only has one welding station, resulting in low welding efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a double-station busbar welding device.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] A double-station busbar welding device includes a transmission support device, a string lifting device, a belt making device, a transfer device, a welding device and a pressing device. The belt making device and the welding device are both arranged on both sides of the transmission support device. The transfer device is used to transport the busbar prepared by the belt making device to the welding device. The pressing device is used to press the busbar during welding. The transmission support device can carry two glass plates arranged in parallel, and each of the glass plates carries a group of battery strings. The string lifting device includes two string lifting hands arranged above the transmission support device, each of the string lifting hands is used to lift a group of battery strings. The welding device can be moved above the transmission support device and is used to simultaneously weld the busbar to both ends of each group of battery strings.

[0006] Optionally, the welding device includes a first welding mechanism, a second welding mechanism and a third welding mechanism arranged in sequence, the first welding mechanism and the second welding mechanism are arranged on the same side of the transmission support device, the third welding mechanism is arranged on the other side opposite to the transmission support device, the heating range of the second welding mechanism is wider than the heating range of the first welding mechanism and the third welding mechanism, the first welding mechanism and the third welding mechanism are respectively used to weld the busbars located at the two ends away from each other of the two groups of battery strings, and the second welding mechanism is used to weld the busbars located at the two ends adjacent to each other of the two groups of battery strings.

[0007] Optionally, the belt-making device includes a first belt-making mechanism, a second belt-making mechanism and a third belt-making mechanism, the first belt-making mechanism and the second belt-making mechanism are arranged adjacent to the first welding mechanism on the same side of the transmission support device, the third belt-making mechanism is arranged adjacent to the third welding mechanism on the other side opposite to the transmission support device, and the second belt-making mechanism can simultaneously prepare the busbars required for the two ends of the two groups of battery strings that are far away from each other.

[0008] Optionally, the second tape making mechanism includes a tape drawing and cutting portion and a tape splicing portion, the tape drawing and cutting portion includes a crossbeam and a movable plate and a cutter assembly arranged on the crossbeam, the movable plate can reciprocate along the extension direction of the crossbeam, two tape drawing clamps are arranged side by side on the movable plate along the movement direction perpendicular to the moving plate, the cutter assembly is used to cut the bus tape, and the tape splicing portion is arranged below the movement trajectory of the movable plate.

[0009] Optionally, the two string carrying handles can move closer to or farther away from each other.

[0010] Optionally, the welding device includes a first welding mechanism, a second welding mechanism, a third welding mechanism and a fourth welding mechanism arranged in sequence, the first welding mechanism and the second welding mechanism are arranged on the same side of the transmission support device, the third welding mechanism and the fourth welding mechanism are arranged on the other side opposite to the transmission support device, the first welding mechanism and the second welding mechanism are used to weld the busbars located at both ends of one group of battery strings, and the third welding mechanism and the fourth welding mechanism are used to weld the busbars located at both ends of another group of battery strings.

[0011] Optionally, the belt making device includes a first belt making mechanism, a second belt making mechanism, a third belt making mechanism and a fourth belt making mechanism, the first belt making mechanism and the second belt making mechanism are arranged adjacent to the first welding mechanism on the same side of the transmission support device, and the third belt making mechanism and the fourth belt making mechanism are arranged adjacent to the fourth welding mechanism on the other side opposite to the transmission support device.

[0012] Optionally, the pressing device includes a first pressing mechanism, a second pressing mechanism and a third pressing mechanism that can be raised and lowered, one of the lifting handles is arranged between the first pressing mechanism and the second pressing mechanism, and the other lifting handle is arranged between the second pressing mechanism and the third pressing mechanism, and the pressing range of the second pressing mechanism is wider than the pressing range of the first pressing mechanism and the third pressing mechanism.

[0013] Optionally, the pressing device includes a first pressing mechanism, a second pressing mechanism, a third pressing mechanism and a fourth pressing mechanism that can be raised and lowered, wherein one of the lifting handles is arranged between the first pressing mechanism and the second pressing mechanism, and the other lifting handle is arranged between the third pressing mechanism and the fourth pressing mechanism.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0015] In the present invention, a transport support device can carry two parallel glass sheets, two string lifters can simultaneously lift the battery strings on the two glass sheets, a ribbon making device can provide the busbars required for the two battery strings, a transfer device transports the busbars prepared by the ribbon making device to the welding device, and the welding device carries the busbars to the corresponding position. Through the coordinated cooperation of the string lifters, welding device, and pressing device, the busbars can be welded to both ends of the two battery strings simultaneously. The dual-station busbar welding equipment provided by the present invention has two welding stations and high production efficiency, and is particularly suitable for the production of small-sized photovoltaic modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the state after the battery strings on the two glass plates are welded to the busbars in this utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the state after the battery strings on the two glass plates are welded to the busbars in this utility model. Figure 2 ;

[0018] Figure 3 This is a structural diagram of the first embodiment of the double-station busbar welding equipment of the utility model;

[0019] Figure 4 This is a structural diagram of the second embodiment of the double-station busbar welding equipment of the utility model;

[0020] Figure 5 This is a structural diagram of one embodiment of the second welding mechanism in the present utility model;

[0021] Among them: 110, glass plate; 120, battery string; 130, busbar; 200, transmission support device; 310, string lifting handle; 410, first belt making mechanism; 420, second belt making mechanism; 421, belt drawing and cutting part; 4211, crossbeam; 4212, movable plate; 4213, belt drawing clamp; 4214, cutter assembly; 422, belt connecting part; 430, third belt making mechanism; 440, fourth belt making mechanism; 510, first welding mechanism; 520, second welding mechanism; 530, third welding mechanism; 540, fourth welding mechanism; 610, first transfer mechanism; 620, second transfer mechanism; 630, third transfer mechanism; 640, fourth transfer mechanism; 710, first pressing mechanism; 720, second pressing mechanism; 730, third pressing mechanism; 740, fourth pressing mechanism. DETAILED DESCRIPTION

[0022] The technical solution and technical effects of the present invention are further described in detail below in conjunction with the accompanying drawings of the present invention.

[0023] It should be noted that, in the description of the present invention, the terms "above", "below", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-Figure 3As shown, the present invention provides a dual-station busbar welding device capable of simultaneously welding busbars 130 to both ends of two groups of cell strings 120. This device is suitable for producing small-sized photovoltaic modules, such as balcony photovoltaic modules. In this invention, a photovoltaic module includes a plurality of cell strings 120 arranged in parallel, and busbars 130 welded to both ends of the cell strings 120. One end of the busbar 130 has an upwardly folded lead for welding to a junction box, while the other end is straight. The double-station busbar welding equipment includes a transmission support device 200, a string lifting device, a belt making device, a welding device, a transfer device and a pressing device. The belt making device and the welding device are both arranged on both sides of the transmission support device 200. The transfer mechanism is used to transport the busbar 130 prepared by the belt making mechanism to the welding device. The pressing device is used to press the busbar 130 during welding. The transmission support device 200 can carry two glass plates 110 arranged in parallel, and each glass plate 110 carries a group of battery strings 120. The string lifting device includes two string lifting hands 310 arranged above the transmission support device 200, each string lifting hand 310 is used to lift a group of battery strings 120, and the welding device can be moved to the top of the transmission support device 200 and is used to simultaneously weld the busbar 130 to both ends of each group of battery strings 120.

[0025] In the present invention, the transmission support device 200 can transport the glass sheet 110 to the next workstation and can be a synchronous belt conveyor or a fork-type conveyor. The string lifting device includes two string lifting arms 310 connected to a power device. The bottom of the string lifting arms 310 is provided with a suction cup for adsorbing the battery string 120. Driven by the power device, the string lifting arms 310 can lift the battery string 120 from the glass sheet 110 or place the welded battery string 120 on the glass sheet 110. The welding device is heated by a magnetic core or an electric soldering iron. The transfer device adsorbs and transports the busbar 130. The pressing device is used to press the welding ribbons at both ends of the battery string 120 to ensure close contact with the busbar 130 during welding. The dual-station busbar welding equipment has two welding stations. Through the coordinated cooperation of the string lifting device, the ribbon making device, the welding device, the transfer device, and the pressing device, the busbar 130 can be welded to both ends of two groups of battery strings 120 at the same time, thereby improving production efficiency.

[0026] In one embodiment of the present invention, the welding device includes a first welding mechanism 510, a second welding mechanism 520, and a third welding mechanism 530, which are arranged in sequence. The first welding mechanism 510 and the second welding mechanism 520 are arranged on the same side of the transmission support device 200, and the third welding mechanism 530 is arranged on the opposite side of the transmission support device 200. The heating range of the second welding mechanism 520 is wider than the heating ranges of the first welding mechanism 510 and the third welding mechanism 530. The first welding mechanism 510 and the third welding mechanism 530 are respectively used to weld the busbars 130 located at the ends of two battery strings 120 that are separated from each other, while the second welding mechanism 520 is used to weld the busbars 130 located at the ends of two battery strings 120 that are adjacent to each other. The first welding mechanism 510, the second welding mechanism 520, and the third welding mechanism 530 are all driven by independent power devices to move horizontally above the transmission support device 200. The second welding mechanism 520 can weld busbars 130 at two locations simultaneously, making the device more compact. During welding, the two string lifting hands 310 lift the two groups of battery strings 120, and the first welding mechanism 510, the second welding mechanism 520 and the third welding mechanism 530 carry the bus ribbon 130 and move, wherein the first welding mechanism 510 moves to the lower position of the left end of the battery string 120 adjacent to it, the second welding mechanism 520 moves to the lower position between the two groups of battery strings 120, and the third welding mechanism 530 moves to the lower position of the right end of the battery string 120 adjacent to it. The two string lifting hands 310 move down the welding strips at the ends of the two groups of battery strings 120 to overlap with the bus ribbon 130 carried by the first welding mechanism 510, the second welding mechanism 520 and the third welding mechanism 530. After the pressing device presses the welding strips and the bus ribbon 130, the first welding mechanism 510, the second welding mechanism 520 and the third welding mechanism 530 work to complete the welding.

[0027] In this embodiment, the ribbon making device includes a first ribbon making mechanism 410, a second ribbon making mechanism 420, and a third ribbon making mechanism 430. The first ribbon making mechanism 410 and the second ribbon making mechanism 420 are disposed on the same side of the transport support device 200 adjacent to the first welding mechanism 510. The third ribbon making mechanism 430 is disposed on the opposite side of the transport support device 200 adjacent to the third welding mechanism 530. The second ribbon making mechanism 420 is capable of simultaneously producing the bus ribbons 130 required for the two distal ends of two battery strings 120. The bus ribbons 130 produced by the first ribbon making mechanism 410 are transported to the first welding mechanism 510 by the first transfer mechanism 610; the bus ribbons 130 produced by the second ribbon making mechanism 420 are transported to the second welding mechanism 520 by the second transfer mechanism 620; and the bus ribbons 130 produced by the third ribbon making mechanism 430 are transported to the third welding mechanism 530 by the third transfer mechanism 630. The second tape-making mechanism 420 is disposed on one side of the first welding mechanism 510. The first tape-making mechanism 410 can be disposed below the first welding mechanism 510, or on the side of the second tape-making mechanism 420 away from the first welding mechanism 510. A row of suction cups is provided at the bottom of the first transfer mechanism 610 and the third transfer mechanism 630, while two rows of suction cups are provided at the bottom of the second transfer mechanism 620 to absorb and transfer the corresponding bus ribbon 130.

[0028] like Figure 5 As shown, in this embodiment, the second tape making mechanism 420 includes a tape drawing and cutting unit 421 and a tape splicing unit 422. The tape drawing and cutting unit 421 includes a crossbeam 4211, a movable plate 4212 disposed on the crossbeam 4211, and a cutter assembly 4214. The movable plate 4212 can reciprocate along the extension direction of the crossbeam 4211. Two tape drawing clamps 4213 are arranged side by side on the movable plate 4212 in a direction perpendicular to the movement of the movable plate 4212. The cutter assembly 4214 is used to cut the bus ribbon 130. The tape splicing unit 422 is disposed below the movement trajectory of the movable plate 4212. The two tape drawing clamps 4213 simultaneously clamp the ends of two bus ribbons 130 and pull them a predetermined distance. After being cut by the cutter assembly 4214, the tape drawing clamps 4213 release the ends of the bus ribbons 130, causing them to fall onto the tape splicing unit 422. The ends are then transported by the second transfer mechanism 620 to the second welding mechanism 520. The second ribbon making mechanism 420 prepares two sets of identical bus ribbons 130. After welding, the bus ribbons 130 at both ends of the two battery strings 120 are mirror images of each other. The arrangement of the bus ribbons 130 is as follows: Figure 1 or Figure 2 If the second tape-making mechanism 420 prepares two sets of bus ribbons 130 with lead ends, the first tape-making mechanism 410 and the third tape-making mechanism 430 prepare straight bus ribbons 130; if the second tape-making mechanism 420 prepares straight bus ribbons 130, the first tape-making mechanism 410 and the third tape-making mechanism 430 prepare two sets of bus ribbons 130 with lead ends.

[0029] In this embodiment, the two string lifting arms 310 can move closer to or further away from each other. The length of the glass plates 110 is greater than the length of the battery strings 120. When the two glass plates 110 are on the transport support device 200, there is a certain distance between the two glass plates, and the distance between the two groups of battery strings 120 is even greater. When the two string lifting arms 310 lift the two groups of battery strings 120 and bring them closer together, the distance between the two groups of battery strings 120 decreases. At this time, the heating width range of the second welding mechanism 520 can be appropriately reduced, thereby reducing the space occupied by the second welding mechanism 520.

[0030] In this embodiment, the pressing device includes a first pressing mechanism 710, a second pressing mechanism 720, and a third pressing mechanism 730 that can be raised and lowered. One string lifting handle 310 is located between the first pressing mechanism 710 and the second pressing mechanism 720, and the other string lifting handle 310 is located between the second pressing mechanism 720 and the third pressing mechanism 730. The pressing range of the second pressing mechanism 720 is wider than that of the first pressing mechanism 710 and the third pressing mechanism 730. Elastic pressure blocks are provided at the bottom of the first pressing mechanism 710, the second pressing mechanism 720, and the third pressing mechanism 730 for pressing the soldering ribbons and the busbar 130. The pressure block at the bottom of the second pressing mechanism 720 can simultaneously press the soldering ribbons at the adjacent ends of two groups of battery strings 120 so that they are in close contact with the busbar 130.

[0031] like Figure 4 As shown, in one embodiment of the present invention, the welding device includes a first welding mechanism 510, a second welding mechanism 520, a third welding mechanism 530 and a fourth welding mechanism 540 arranged in sequence, the first welding mechanism 510 and the second welding mechanism 520 are arranged on the same side of the transmission support device 200, the third welding mechanism 530 and the fourth welding mechanism 540 are arranged on the other side opposite to the transmission support device 200, the first welding mechanism 510 and the second welding mechanism 520 are used to weld the busbars 130 located at both ends of one group of battery strings 120, and the third welding mechanism 530 and the fourth welding mechanism 540 are used to weld the busbars 130 located at both ends of another group of battery strings 120.

[0032] In this embodiment, the ribbon making device includes a first ribbon making mechanism 410, a second ribbon making mechanism 420, a third ribbon making mechanism 430, and a fourth ribbon making mechanism 440. The first ribbon making mechanism 410 and the second ribbon making mechanism 420 are disposed on the same side of the transport support device 200 adjacent to the first welding mechanism 510. The third ribbon making mechanism 430 and the fourth ribbon making mechanism 440 are disposed on opposite sides of the transport support device 200 adjacent to the fourth welding mechanism 540. The first ribbon making mechanism 410 can be disposed below the first welding mechanism 510 or on the side of the second ribbon making mechanism 420 away from the first welding mechanism 510. The third ribbon making mechanism 430 can be disposed below the third welding mechanism 530 or on the side of the fourth ribbon making mechanism 440 away from the third welding mechanism 530. The first ribbon making mechanism 410, the second ribbon making mechanism 420, the third ribbon making mechanism 430, and the fourth ribbon making mechanism 440 can each produce two sets of bus ribbons 130 with lead ends, or produce straight bus ribbons 130.

[0033] In this embodiment, the pressing device includes a first pressing mechanism 710, a second pressing mechanism 720, a third pressing mechanism 730 and a fourth pressing mechanism 740 that can be raised and lowered. One of the lifting handles 310 is arranged between the first pressing mechanism 710 and the second pressing mechanism 720, and the other lifting handle 310 is arranged between the third pressing mechanism 730 and the fourth pressing mechanism 740. The first pressing mechanism 710, the second pressing mechanism 720, the third pressing mechanism 730 and the fourth pressing mechanism 740 work independently.

[0034] The above disclosure is only a preferred embodiment of the present invention, and it is certainly not intended to limit the scope of the rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A double-station busbar welding device, comprising a transmission support device (200), a string lifting device, a belt making device, a welding device, a transfer device and a pressing device, wherein the belt making device and the welding device are both arranged on both sides of the transmission support device (200), the transfer device is used to transport the busbar (130) prepared by the belt making device to the welding device, and the pressing device is used to press the busbar (130) during welding, characterized in that: The transmission support device (200) is capable of carrying two glass plates (110) arranged in parallel, each of the glass plates (110) carrying a group of battery strings (120), the string lifting device comprises two string lifting hands (310) arranged above the transmission support device (200), each of the string lifting hands (310) being used to lift a group of the battery strings (120), and the welding device is capable of moving above the transmission support device (200) and being used to simultaneously weld the busbar (130) to both ends of each group of the battery strings (120).

2. The double-station busbar welding equipment according to claim 1, characterized in that: The welding device comprises a first welding mechanism (510), a second welding mechanism (520) and a third welding mechanism (530) which are arranged in sequence. The first welding mechanism (510) and the second welding mechanism (520) are arranged on the same side of the transmission support device (200), and the third welding mechanism (530) is arranged on the other side opposite to the transmission support device (200). The heating range of the second welding mechanism (520) is wider than the heating ranges of the first welding mechanism (510) and the third welding mechanism (530). The first welding mechanism (510) and the third welding mechanism (530) are respectively used to weld the busbars (130) located at two ends of the two groups of battery strings (120) that are far away from each other, and the second welding mechanism (520) is used to weld the busbars (130) located at two ends of the two groups of battery strings (120) that are adjacent to each other.

3. The double-station busbar welding equipment according to claim 2, characterized in that: The belt making device comprises a first belt making mechanism (410), a second belt making mechanism (420) and a third belt making mechanism (430); the first belt making mechanism (410) and the second belt making mechanism (420) are arranged on the same side of the transmission support device (200) adjacent to the first welding mechanism (510); the third belt making mechanism (430) is arranged on the other side opposite to the transmission support device (200) adjacent to the third welding mechanism (530); the second belt making mechanism (420) can simultaneously prepare the busbars (130) required for the two ends of the two groups of battery strings (120) that are far away from each other.

4. The double-station busbar welding equipment according to claim 3, characterized in that: The second tape making mechanism (420) includes a tape drawing and cutting portion (421) and a tape connecting portion (422). The tape drawing and cutting portion (421) includes a crossbeam (4211) and a movable plate (4212) and a cutter assembly (4214) arranged on the crossbeam (4211). The movable plate (4212) can reciprocate along the extension direction of the crossbeam (4211). Two tape drawing clamps (4213) are arranged in parallel on the movable plate (4212) along a direction of movement perpendicular to the movable plate (4212). The cutter assembly (4214) is used to cut the busbar (130). The tape connecting portion (422) is arranged below the movement trajectory of the movable plate (4212).

5. The double-station busbar welding equipment according to claim 2, characterized in that: The two string carrying handles (310) can move closer to or farther away from each other.

6. The double-station busbar welding equipment according to claim 1, characterized in that: The welding device comprises a first welding mechanism (510), a second welding mechanism (520), a third welding mechanism (530) and a fourth welding mechanism (540) which are arranged in sequence. The first welding mechanism (510) and the second welding mechanism (520) are arranged on the same side of the transmission support device (200), and the third welding mechanism (530) and the fourth welding mechanism (540) are arranged on the other side opposite to the transmission support device (200). The first welding mechanism (510) and the second welding mechanism (520) are used to weld the busbars (130) located at both ends of one group of battery strings (120), and the third welding mechanism (530) and the fourth welding mechanism (540) are used to weld the busbars (130) located at both ends of another group of battery strings (120).

7. The double-station busbar welding equipment according to claim 6, characterized in that: The belt making device comprises a first belt making mechanism (410), a second belt making mechanism (420), a third belt making mechanism (430) and a fourth belt making mechanism (440); the first belt making mechanism (410) and the second belt making mechanism (420) are arranged on the same side of the transmission support device (200) adjacent to the first welding mechanism (510); the third belt making mechanism (430) and the fourth belt making mechanism (440) are arranged on the other side of the transmission support device (200) adjacent to the fourth welding mechanism (540).

8. The double-station busbar welding equipment according to claim 1, characterized in that: The pressing device includes a first pressing mechanism (710), a second pressing mechanism (720) and a third pressing mechanism (730) that can be raised and lowered, wherein one of the string carrying handles (310) is arranged between the first pressing mechanism (710) and the second pressing mechanism (720), and the other string carrying handle (310) is arranged between the second pressing mechanism (720) and the third pressing mechanism (730), and the pressing range of the second pressing mechanism (720) is wider than the pressing range of the first pressing mechanism (710) and the third pressing mechanism (730).

9. The double-station busbar welding equipment according to claim 1, characterized in that: The pressing device includes a first pressing mechanism (710), a second pressing mechanism (720), a third pressing mechanism (730) and a fourth pressing mechanism (740) that can be raised and lowered, wherein one of the string carrying handles (310) is arranged between the first pressing mechanism (710) and the second pressing mechanism (720), and the other string carrying handle (310) is arranged between the third pressing mechanism (730) and the fourth pressing mechanism (740).

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