Photovoltaic module welding equipment

Abstract

The utility model discloses photovoltaic module welding equipment which comprises a feeding part, a carrying part, a welding part, a first bearing part and a second bearing part, the feeding part is used for providing a to-be-welded bus bar, the first bearing part is used for bearing the to-be-welded bus bar of a battery string group and enabling the to-be-welded bus bar part of the battery string group to protrude out of the first bearing part, and the second bearing part is used for carrying the to-be-welded bus bar of the battery string group; the second bearing part is used for bearing the part, protruding out of the first bearing part, of the battery string set, the carrying part is used for moving to the feeding part and picking up bus bars provided by the feeding part, the carrying part is further used for moving to the position above the second bearing part so that the picked-up bus bars can be tightly pressed on a plurality of welding strips of the battery string set, and a plurality of overlapping parts are formed among the welding strips; the welding part is used for carrying out laser welding on the bus bar of each pressed overlapped part and the corresponding welding strip, so that the bus bar is automatically welded on the welding strip at the end part of the battery string group, and the working efficiency is high; and a non-contact laser welding mode is adopted, so that the welding efficiency is high, the welding precision is high, and the flexibility is good.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of photovoltaic module production equipment, and particularly relates to a photovoltaic module welding device. BACKGROUND

[0002] In the existing photovoltaic module, the bus bar used to connect the battery string in series is generally arranged on the outer side of the battery string, and the bus bar is welded and fixed with the exposed end portion of the battery string to realize the electrical connection of the bus bar and the battery string. Since the bus bar located on the outer side of the battery string occupies a certain space, the overall land occupation area of the photovoltaic module is increased, and the light receiving area ratio of the photovoltaic module is reduced. Therefore, the industry currently attempts to weld and fix the bus bar on the solder strip at the end portion of the battery string, so that the bus bar is directly fixed on the upper surface of the battery string, which requires an automatic welding device to automatically weld the bus bar on the solder strip at the end portion of the battery string. CONTENT OF THE UTILITY MODEL

[0003] The application aims to provide a photovoltaic module welding device to solve the above problems in the prior art.

[0004] To achieve this purpose, the application adopts the following technical solutions:

[0005] The application provides a photovoltaic module welding device, which comprises a feeding part, a carrying part, a welding part, a first bearing part and a second bearing part, wherein:

[0006] The feeding part is arranged on the outer side of the second bearing part, and the feeding part is configured to provide a bus bar to be welded;

[0007] The first bearing part is configured to bear the battery string to which the bus bar is to be welded and make the part of the battery string to which the bus bar is to be welded protrude outwardly from the first bearing part, the second bearing part is arranged on the outer side of the first bearing part, and the second bearing part is configured to bear the part of the battery string protruding from the first bearing part, the battery string comprises a plurality of cell pieces and a plurality of solder strips for connecting the plurality of cell pieces in series, and the plurality of solder strips are arranged in parallel and at intervals and extend along a first horizontal direction;

[0008] The carrying part can be alternately moved to the feeding part and the second bearing part, the carrying part is configured to be moved to the feeding part and pick up the bus bar provided by the feeding part, and the carrying part is further configured to be moved above the second bearing part to press the picked-up bus bar against the plurality of solder strips of the part of the battery string borne by the second bearing part along a second horizontal direction, and the bus bar after being pressed and the plurality of solder strips form a plurality of overlapping parts arranged at intervals along the second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction;

[0009] The welding part is configured to perform laser welding on the bus bar and the corresponding solder strip of each overlapping part after being pressed.

[0010] The photovoltaic module welding device provided in the application picks up the bus bar to be welded by the carrying part and presses the picked-up bus bar on the several welding ribbons at one end of the battery string group carried by the second carrying part, so that the bus bar and the several welding ribbons form several overlapping parts, and the bus bar and the corresponding welding ribbon at each overlapping part are subjected to laser welding by the welding part, thereby realizing automatic welding of the bus bar on the welding ribbons at the end of the battery string group and high work efficiency. Moreover, the non-contact laser welding mode has the advantages of high welding efficiency, high welding precision and good flexibility.

[0011] Optionally, the carrying part comprises a first driving assembly and at least one adsorption assembly, each adsorption assembly is configured to adsorb or release one bus bar, wherein:

[0012] The driving end of the first driving assembly is connected to the at least one adsorption assembly, the first driving assembly is configured to drive the adsorption assembly to move to the feeding part to adsorb the bus bar provided by the feeding part through the adsorption assembly, and the first driving assembly is further configured to drive the adsorption assembly to move to the second carrying part to press the adsorbed bus bar on the several welding ribbons at the end of the battery string group carried by the second carrying part along the second horizontal direction.

[0013] Through cooperation of the first driving assembly and the adsorption assembly, the bus bar is picked up or released by using the adsorption mode and pressed on the several welding ribbons at the end of the battery string group carried by the second carrying part, the adsorption assembly has the functions of adsorption and pressing, an additional pressing mechanism is not needed, and a carrying part with simple structure, small space occupation and high work efficiency is provided.

[0014] Optionally, the adsorption assembly comprises an adsorption member and an air extraction part, the adsorption surface of the adsorption member extends along the second horizontal direction, a plurality of adsorption holes are spaced apart on the adsorption surface of the adsorption member along the second horizontal direction, an air extraction channel is arranged in the adsorption member, a first end of the air extraction channel is in communication with the adsorption holes, a second end of the air extraction channel is in communication with the air extraction part, and the air extraction part is configured to extract air in the air extraction channel to adsorb the bus bar on the adsorption surface of the adsorption member through the plurality of adsorption holes.

[0015] Through the plurality of adsorption holes spaced apart on the adsorption surface of the adsorption member, the air extraction part extracts air in the air extraction channel to adsorb the bus bar on the adsorption surface of the adsorption member through the plurality of adsorption holes, thereby ensuring that uniform and stable adsorption force is provided to the bus bar during adsorption, and an adsorption assembly with simple structure and high adsorption stability is provided.

[0016] Optionally, the first driving assembly comprises a first driving member, a transverse moving seat and a second driving member, wherein:

[0017] The driving end of the first driving member is connected with the transverse seat, and the first driving member is configured to drive the transverse seat to move back and forth along the first horizontal direction.

[0018] The fixed end of the second driving member is installed on the transverse seat, and the driving end of the second driving member is connected with the adsorption assembly, and the second driving member is configured to drive the adsorption assembly to move up and down.

[0019] Through cooperation of the first driving member, the transverse seat and the second driving member, the adsorption assembly is driven to move transversely along the first horizontal direction and move up and down, so as to be alternately moved to the feeding part and the second bearing part, and a first driving assembly with simple structure and high working efficiency is provided.

[0020] Optionally, the welding part is arranged above the second bearing part, and the welding part comprises a second driving assembly and a laser welding mechanism, wherein:

[0021] The driving end of the second driving assembly is connected with the laser welding mechanism, and the second driving assembly is configured to drive the laser welding mechanism to move back and forth along the second horizontal direction;

[0022] A plurality of light transmission holes are arranged in the second horizontal direction and are arranged through the adsorption member, the plurality of light transmission holes are arranged staggered with the plurality of adsorption holes, and each light transmission hole corresponds to an overlapping part;

[0023] The laser welding mechanism is configured to emit laser to the corresponding overlapping part through the light transmission hole, so as to weld and fix the bus bar and the welding strip in the overlapping part.

[0024] Through cooperation of the second driving assembly, the laser welding mechanism and the adsorption member, the laser welding mechanism is driven to weld and fix the overlapping parts of the bus bar and the welding strip in sequence through the plurality of light transmission holes in the adsorption member along the second horizontal direction, and a welding part with simple structure and high welding efficiency is provided.

[0025] Optionally, the second driving assembly is further configured to drive the laser welding mechanism to move up and down, and the second driving assembly comprises a third driving member, a lifting seat and a fourth driving member, wherein:

[0026] The driving end of the third driving member is connected with the lifting seat, and the third driving member is configured to drive the lifting seat to move up and down;

[0027] The fixed end of the fourth driving member is installed on the lifting seat, and the driving end of the fourth driving member is connected with the laser welding mechanism, and the fourth driving member is configured to drive the laser welding mechanism to move back and forth along the second horizontal direction.

[0028] Through cooperation of the third driving member, the lifting seat and the fourth driving member, the laser welding mechanism is driven to move back and forth along the second horizontal direction and move up and down, so that the laser welding mechanism is at a suitable welding height, and different welding requirements are met.

[0029] Optionally, the second bearing part comprises a bearing member for bearing the part of the battery string group protruding from the first bearing part, and the bearing surface of the bearing member is covered with a flexible gasket.

[0030] By arranging the bearing member and covering the bearing surface of the bearing member with a flexible gasket, flexible support is provided for the part of the battery string group protruding from the first bearing part, avoiding damage to the battery sheet caused by hard contact between the bearing member and the battery string group.

[0031] Optionally, the second bearing part comprises a bearing member and a support seat, the bearing member is used to bear the part of the battery string group protruding from the first bearing part, and the bearing member is elastically floatingly installed on the support seat.

[0032] By arranging the bearing member and floatingly installing the bearing member on the support seat, floating support is provided for the part of the battery string group protruding from the first bearing part, avoiding damage to the battery sheet caused by hard contact between the bearing member and the battery string group.

[0033] Optionally, the first bearing part comprises a conveying line arranged along the second horizontal direction, the conveying line is used to receive the battery string group to be welded with bus bars and convey the battery string group to the second bearing part, so that the part of the battery string group protruding from the conveying line is located on the second bearing part.

[0034] The conveying line is further configured to convey the battery string group after welding the bus bars to the next process.

[0035] By arranging the first bearing part as a conveying line, the battery string group to be welded with bus bars is received, the received battery string group to be welded with bus bars is conveyed to the second bearing part, and the battery string group after welding the bus bars is conveyed to the next process, thereby providing a first bearing part with simple structure and stable and reliable operation.

[0036] Optionally, the second bearing part comprises a fifth driving member and a bearing member, the bearing member has a bearing surface extending along the second horizontal direction, and wherein:

[0037] The driving end of the fifth driving member is connected to the bearing member, and the fifth driving member is configured to drive the bearing member to rise to a high position or a low position.

[0038] The fifth driving member drives the bearing member to move to the high position, so that the bearing member bears the part of the battery string group protruding from the conveying line.

[0039] The fifth driving member drives the bearing member to move to the low position, so that the bearing member avoids the movement path of the battery string group.

[0040] By cooperation of the fifth driving member and the bearing member, the bearing member is lifted to bear the protruding part of the battery string and cooperate with the welding part to implement welding; when the bearing member is moved to the low position, the moving path of the battery string is avoided, and the battery string to be welded is sent into the second bearing part and the battery string after welding is sent to the next process from the second bearing part. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a perspective structural schematic diagram of the photovoltaic module welding equipment provided by the embodiment of the present application;

[0042] Figure 2 is a partial top view schematic diagram of the battery string provided by the embodiment of the present application;

[0043] Figure 3 is a partial structural schematic diagram of the photovoltaic module welding equipment provided by the embodiment of the present application;

[0044] Figure 4 is a perspective structural schematic diagram of the carrying part of the photovoltaic module welding equipment provided by the embodiment of the present application;

[0045] Figure 5 is a partial structural schematic diagram of the photovoltaic module welding equipment provided by the embodiment of the present application.

[0046] Figures 1 to 5 The following reference signs are included in the detailed description:

[0047] The feeding part 10, the bus bar 11;

[0048] The carrying part 20, the first driving assembly 21, the first driving member 210, the first motor 210a, the gear 210b, the rack 210c, the transverse moving seat 211, the second driving member 212, the suction assembly 22, the suction member 220, the light transmission hole 221;

[0049] The welding part 30, the second driving assembly 31, the third driving member 310, the lifting seat 311, the fourth driving member 312, the laser welding mechanism 32;

[0050] The second bearing part 40, the bearing member 41, the flexible gasket 410, the support seat 42, the fifth driving member 43;

[0051] The battery string 50, the battery sheet 51, the solder strip 52, the battery string 53. DETAILED DESCRIPTION

[0052] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0053] The busbar used to connect the battery strings in series in the existing photovoltaic module is generally arranged on the outer side of the battery string, and the busbar is welded and fixed with the exposed end of the battery string to realize the electrical connection between the busbar and the battery string. Since the busbar located on the outer side of the battery string occupies a certain space, the overall area of the photovoltaic module is increased, and the light receiving area ratio of the photovoltaic module is reduced. Therefore, the industry currently attempts to weld and fix the busbar on the solder strip at the end of the battery string, so that the busbar is directly fixed on the upper surface of the battery string, which requires an automatic welding device to automatically weld the busbar to the solder strip at the end of the battery string.

[0054] Therefore, the present application provides a photovoltaic module welding device, please refer to Figure 1 and Figure 2 The photovoltaic module welding device provided by the embodiment of the present application comprises a feeding part 10, a carrying part 20, a welding part 30, a first bearing part (not shown in the figure) and a second bearing part 40, wherein: the feeding part 10 is arranged on the outer side of the second bearing part 40, and the feeding part 10 is configured to provide the busbar 11 to be welded; the first bearing part is configured to bear the battery string 50 to be welded with the busbar 11 and make the part of the battery string 50 to be welded with the busbar 11 protrude outward from the first bearing part, the second bearing part 40 is arranged on the outer side of the first bearing part, and the second bearing part 40 is configured to bear the part of the battery string 50 protruding from the first bearing part, the battery string 50 comprises a plurality of cell pieces 51 and a plurality of solder strips 52 for connecting the plurality of cell pieces 51 in series, the plurality of solder strips 52 are arranged in parallel and extend along a first horizontal direction (X direction in the figure). Figure 1 The carrying part 20 can be alternately moved to the feeding part 10 and the second bearing part 40, and the carrying part 20 is configured to move to the feeding part 10 and pick up the busbar 11 provided by the feeding part 10, and the carrying part 20 is also configured to move above the second bearing part 40 to press the picked-up busbar 11 on the plurality of solder strips 52 of the part of the battery string 50 borne by the second bearing part 40 in extension along a second horizontal direction (Y direction in the figure), and the busbar 11 after pressing and the plurality of solder strips 52 form a plurality of overlapping parts arranged in the second horizontal direction. Figure 1 The welding part 30 is configured to perform laser welding on the busbar 11 and the corresponding solder strip 52 of each overlapping part after pressing.

[0055] It should be noted that the battery string 50 comprises at least two battery strings 53, each battery string 53 comprises a plurality of cell pieces 51 and a plurality of solder strips 52 for connecting the plurality of cell pieces 51 in series, the plurality of solder strips 52 are arranged in parallel and extend along a first horizontal direction, and the busbar 11 is arranged at one end of the battery string, and the solder strips 52 on the end parts of the adjacent two battery strings 53 are welded and fixed with the busbar 11 to realize the electrical connection between the busbar 11 and the adjacent two battery strings 53.

[0056] The photovoltaic module welding device provided in the application picks up the bus bar 11 to be welded through the carrying part 20 and presses the picked-up bus bar 11 on the plurality of welding ribbons 52 at one end of the battery string group 50 carried by the second carrying part 40, so that a plurality of overlapping parts are formed between the bus bar 11 and the plurality of welding ribbons 52, the bus bar 11 and the corresponding welding ribbon 52 at each overlapping part are implemented laser welding through the welding part 30, the bus bar 11 is automatically welded on the welding ribbons 52 at the end of the battery string group 50, and the working efficiency is high; moreover, the non-contact laser welding mode is adopted, and the welding efficiency is high, the welding precision is high, and the flexibility is good.

[0057] As an implementation manner, the carrying part 20 includes a first driving assembly 21 and at least one adsorption assembly 22, each adsorption assembly 22 is configured to adsorb or release one bus bar 11, wherein: the driving end of the first driving assembly 21 is connected with the at least one adsorption assembly 22, the first driving assembly 21 is configured to drive the adsorption assembly 22 to move to the feeding part 10 to adsorb the bus bar 11 provided by the feeding part 10 through the adsorption assembly 22, and the first driving assembly 21 is further configured to drive the adsorption assembly 22 to move to the second carrying part 40 to press the adsorbed bus bar 11 along the second horizontal direction on the plurality of welding ribbons 52 at the end of the battery string group 50 carried by the second carrying part 40.

[0058] It should be noted that: according to the number of battery string groups 50 including battery strings 53, a plurality of adsorption assemblies 22 can be arranged, and the plurality of adsorption assemblies 22 are arranged side by side along the second horizontal direction, in the embodiment, there are six battery strings 53 at the end of the length direction of the battery string group 50, the carrying part 20 is provided with two adsorption assemblies 22, and the carrying part 20 needs to adsorb the bus bar 11 three times in turn to realize the welding of the bus bar 11 at the end of the battery string group 50.

[0059] It can be seen that through the cooperation of the first driving assembly 21 and the adsorption assembly 22, the adsorption mode is adopted to pick up or release the bus bar 11 and press the picked-up bus bar 11 on the plurality of welding ribbons 52 at the end of the battery string group 50 carried by the second carrying part 40, the adsorption assembly 22 has the functions of adsorption and pressing, and an additional pressing mechanism is not needed, thereby providing a carrying part with simple structure, small space occupation and high working efficiency.

[0060] Please refer to Figure 2 and Figure 3As shown, as an embodiment, the adsorption assembly 22 comprises the adsorption member 220 and the air suction component, the adsorption surface of the adsorption member 220 extends along the second horizontal direction, a plurality of adsorption holes are arranged on the adsorption surface of the adsorption member 220 and spaced apart along the second horizontal direction, and an air suction channel is arranged in the adsorption member 220, the first end of the air suction channel is communicated with the adsorption holes, the second end of the air suction channel is communicated with the air suction component, and the air suction component is configured to suck the air in the air suction channel to adsorb the bus bar 11 on the adsorption surface of the adsorption member 220 through the plurality of adsorption holes.

[0061] It can be seen that, by arranging a plurality of adsorption holes on the adsorption surface of the adsorption member 220 and spaced apart, and by the air suction component sucking the air in the air suction channel to adsorb the bus bar 11 on the adsorption surface of the adsorption member 220 through the plurality of adsorption holes, uniform and stable adsorption force is provided to the bus bar 11 during adsorption, and an adsorption assembly 22 with simple structure and high adsorption stability is provided.

[0062] As an embodiment, the first driving assembly 21 comprises the first driving member 210, the transverse moving seat 211 and the second driving member 212, wherein: the driving end of the first driving member 210 is connected with the transverse moving seat 211, the first driving member 210 is configured to drive the transverse moving seat 211 to move back and forth along the first horizontal direction; the fixed end of the second driving member 212 is installed on the transverse moving seat 211, and the driving end of the second driving member 212 is connected with the adsorption assembly 22, and the second driving member 212 is configured to drive the adsorption assembly 22 to move up and down.

[0063] Specifically, the first driving member 210 comprises the first motor 210a, the gear 210b and the rack 210c, wherein: the transverse moving seat 211 is movably installed on the equipment rack (not shown in the figure) along the first horizontal direction through a sliding guide pair, and the rack 210c is fixedly installed on the equipment rack and extends along the first horizontal direction; the fixed end of the first motor 210a is installed on the transverse moving seat 211, the gear 210b is installed on the rotating shaft of the first motor 210a, and the gear 210b is engaged with the rack 210c.

[0064] Specifically, the second driving member 212 is an electric cylinder installed vertically on the transverse moving seat 211.

[0065] It can be seen that, by the cooperation of the first driving member 210, the transverse moving seat 211 and the second driving member 212, the adsorption assembly 22 is driven to move transversely along the first horizontal direction and move up and down, so as to alternately move the adsorption assembly 22 to the feeding part 10 and the second bearing part 40, and a first driving assembly 21 with simple structure and high working efficiency is provided.

[0066] Please refer to Figures 1 to 4As shown, as an embodiment, the welding part 30 is arranged above the second bearing part 40, and the welding part 30 comprises a second driving assembly 31 and a laser welding mechanism 32, wherein: the driving end of the second driving assembly 31 is connected to the laser welding mechanism 32, and the second driving assembly 31 is configured to at least drive the laser welding mechanism 32 to reciprocate along the second horizontal direction; a plurality of light transmission holes 221 are arranged on the suction accessory 220 along the second horizontal direction and are penetrated, and the plurality of light transmission holes 221 are arranged staggered with the plurality of suction holes, and each light transmission hole 221 corresponds to an overlapping position; and the laser welding mechanism 32 is configured to emit laser to the corresponding overlapping position through the light transmission hole 221, so as to weld and fix the bus bar 11 and the welding strip 52 at the overlapping position.

[0067] As can be seen, through the cooperation of the second driving assembly 31, the laser welding mechanism 32 and the suction accessory 220, the overlapping position of the bus bar 11 and the plurality of welding strips 52 is sequentially welded and fixed by driving the laser welding mechanism 32 to reciprocate along the second horizontal direction through the plurality of light transmission holes 221 on the suction accessory 220, thereby providing a welding part 30 with simple structure and high welding efficiency.

[0068] As an embodiment, the second driving assembly 31 is further configured to drive the laser welding mechanism 32 to ascend and descend, and the second driving assembly 31 comprises a third driving member 310, an ascending and descending seat 311 and a fourth driving member 312, wherein: the driving end of the third driving member 310 is connected to the ascending and descending seat 311, and the third driving member 310 is configured to drive the ascending and descending seat 311 to ascend and descend; the fixed end of the fourth driving member 312 is mounted on the ascending and descending seat 311, and the driving end of the fourth driving member 312 is connected to the laser welding mechanism 32, and the fourth driving member 312 is configured to drive the laser welding mechanism 32 to reciprocate along the second horizontal direction.

[0069] Specifically, the third driving member 310 adopts a conventional linear module mounted along the second horizontal direction, and the fourth driving member 312 adopts a conventional linear module or a manual linear module mounted along the vertical direction.

[0070] As can be seen, through the cooperation of the third driving member 310, the ascending and descending seat 311 and the fourth driving member 312, the laser welding mechanism 32 is driven to reciprocate along the second horizontal direction and ascend and descend, so that the laser welding mechanism 32 is at a suitable welding height, thereby meeting different welding requirements.

[0071] Please refer to Figure 1 , Figure 2 and Figure 5 As an embodiment, the second bearing part 40 comprises a bearing member 41, and the bearing member 41 is used to bear the part of the battery string group 50 protruding from the first bearing part, and the bearing surface of the bearing member 41 is covered with a flexible gasket 410.

[0072] It can be seen that by arranging the bearing part 41 and covering the flexible pad 410 on the bearing part 41, flexible support is achieved for the part of the battery string group 50 protruding from the first bearing part, avoiding damage to the battery sheet 51 caused by hard contact between the bearing part 41 and the battery string group 50.

[0073] As an embodiment, the second bearing part 40 includes a bearing part 41 and a support seat 42, the bearing part 41 is used to bear the part of the battery string group 50 protruding from the first bearing part, and the bearing part 41 is elastically and floatingly mounted on the support seat 42.

[0074] Specifically, a plurality of elastic members are mounted between the bearing part 41 and the support seat 42, the first end of the elastic member abuts on the top surface of the support seat 42, and the second end of the elastic member abuts on the bottom surface of the bearing part 41.

[0075] It can be seen that by arranging the bearing part 41 and floatingly mounting the bearing part on the support seat 42, floating support is achieved for the part of the battery string group 50 protruding from the first bearing part, avoiding damage to the battery sheet 41 caused by hard contact between the bearing part 41 and the battery string group 50.

[0076] As an embodiment, the first bearing part includes a conveying line arranged along the second horizontal direction, the conveying line is used to receive the battery string group 50 to be welded with the busbar 11 and convey the battery string group 50 to the second bearing part 40, so that the part of the battery string group 50 protruding from the conveying line is located on the second bearing part 40; the conveying line is also configured to convey the battery string group 50 after welding with the busbar 11 to the next process.

[0077] It can be seen that by arranging the first bearing part as a conveying line, the battery string group 50 to be welded with the busbar 11 is received, the battery string group 50 to be welded with the busbar 11 received is conveyed to the second bearing part 40, and the battery string group 50 after welding with the busbar 11 is conveyed to the next process, thereby providing a first bearing part with simple structure and stable and reliable operation.

[0078] As an embodiment, the second bearing part 40 includes a fifth driving member 43 and a bearing part 41, the bearing part 41 has a bearing surface extending along the second horizontal direction, wherein: the driving end of the fifth driving member 43 is connected to the bearing part 41, and the fifth driving member 43 is configured to drive the bearing part 41 to rise to a high position or a low position; the fifth driving member 43 drives the bearing part 41 to move to the high position, so as to bear the part of the battery string group 50 protruding from the conveying line by the bearing part 41; the fifth driving member 43 drives the bearing part 41 to move to the low position, so as to avoid the bearing part 41 from the moving path of the battery string group 50.

[0079] Specifically, the fifth driving member 43 is a driving air cylinder.

[0080] It can be seen that through the cooperation of the fifth driving member 43 and the carrier 41, the driving carrier 41 is lifted, and when the carrier 41 moves to the high position, the battery string group 50 protruding part can be carried out and cooperated with the welding part 30 to implement welding; when the carrier 41 moves to the low position, the moving path of the battery string group 50 can be avoided, and the battery string group 50 to be welded is conveniently sent into the second carrier part 40 and the battery string group 50 after the welding bus bar 11 is sent from the second carrier part 40 to the next process.

[0081] In addition, the feeding part 10 in the embodiment of the application is used to pull out the bus bar of a predetermined length from the material roll through the traction mechanism, cut the bus bar of the predetermined length through the cutting mechanism, and then pull the bus bar of the predetermined length to the transfer platform through the traction mechanism and wait for the carrying part to pick up, Figure 3 The component pointed by the middle mark 10 is the transfer platform of the feeding part 10, and the feeding part 10 belongs to the conventional technology in the field and does not need to be improved creatively, so it is not described in detail.

[0082] Please refer to Figures 1 to 5 The working principle of the photovoltaic module welding equipment provided by the embodiment of the application is as follows:

[0083] S1, the first carrier part sends the battery string group 50 to be welded to the second carrier part 40, so that the part of the battery string group 50 protruding from the conveying line is located above the second carrier part;

[0084] S2, the fifth driving member 43 drives the carrier 41 to move from the low position to the high position, so that the carrier 41 carries the part of the battery string group 50 protruding from the conveying line;

[0085] S3, the carrying part 20 moves to the feeding part 10, picks up the bus bar 11 provided by the feeding part 10, and then moves the picked bus bar 11 above the second carrier part 40, and then presses the picked bus bar 11 on the several welding strips 52 of the part of the battery string group 50 carried by the second carrier part 40 in the second horizontal direction;

[0086] S4, the welding part 30 implements laser welding on the bus bar 11 and the corresponding welding strip 52 of each overlapping part in the second horizontal direction.

[0087] The photovoltaic module welding equipment provided by the embodiment of the application has the following advantages:

[0088] 1) through the carrying part 20 picks up the bus bar 11 and presses the picked-up bus bar 11 on the several welding strips 52 at one end of the battery string group 50 carried by the second bearing part 40, through the welding part 30, the bus bar 11 at each overlapping position is implemented laser welding with the corresponding welding strip 52, which realizes automatic welding of the bus bar 11 on the welding strip 52 at the end of the battery string group 50, has high work efficiency, adopts non-contact laser welding mode, has the advantages of high welding efficiency, high welding precision and good flexibility;

[0089] 2) through the cooperation of the first driving assembly 21 and the adsorption assembly 22, the bus bar 11 is picked up or released by adsorption, and the picked-up bus bar 11 is pressed on the several welding strips 52 at the end of the battery string group 50 carried by the second bearing part 40, the adsorption assembly 22 has the functions of adsorption and pressing, has simple structure, small space occupation and high work efficiency;

[0090] 3) through the cooperation of the second driving assembly 31, the laser welding mechanism 32 and the adsorption part 220, the laser welding mechanism 32 is driven to weld and fix the overlapping parts of the bus bar 11 and the several welding strips 52 in turn through the several light transmission holes 221 on the adsorption part 220 in the second horizontal direction, which has high welding efficiency;

[0091] 4) the second bearing part 40 realizes supporting the battery string group 50 during welding while avoiding the moving path of the battery string group 50, which is beneficial to improve the work efficiency;

[0092] 5) the bearing 41 realizes floating support or elastic support of the battery string group 50, avoids hard contact with the battery string group 50, and plays a role in protecting the battery string group 50.

[0093] The above examples only illustrate the basic principles and characteristics of the present application, and the present application is not limited by the above examples. Various changes and modifications of the present application are possible without departing from the spirit and scope of the present application, and these changes and modifications all fall within the scope of the claimed application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic module welding apparatus, characterized by, The photovoltaic module welding device comprises a feeding part, a carrying part, a welding part, a first bearing part and a second bearing part, wherein: The feeding part is arranged outside the second bearing part, and is configured to provide the bus bar to be welded; The first bearing part is configured to bear the battery string group with the bus bar to be welded and make the part of the battery string group with the bus bar to be welded protrude outward from the first bearing part, and the second bearing part is arranged outside the first bearing part and is configured to bear the part of the battery string group protruding from the first bearing part, the battery string group comprising a plurality of battery pieces and a plurality of welding strips for connecting the plurality of battery pieces in series, the plurality of welding strips being arranged in parallel and spaced apart and extending along a first horizontal direction; The carrying part can be alternately moved to the feeding part and the second bearing part, and is configured to move to the feeding part and pick up the bus bar provided by the feeding part, and is further configured to move above the second bearing part to press the picked-up bus bar against the plurality of welding strips at the part of the battery string group borne by the second bearing part along a second horizontal direction, and the bus bar after being pressed and the plurality of welding strips form a plurality of overlapping parts arranged in parallel along the second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction; The welding part is configured to perform laser welding on the bus bar and the corresponding welding strip at each overlapping part after being pressed.

2. The photovoltaic module welding apparatus of claim 1, wherein, The carrying part comprises a first driving assembly and at least one suction assembly, and each suction assembly is configured to suck or release one bus bar, wherein: The driving end of the first driving assembly is connected to the at least one suction assembly, and the first driving assembly is configured to drive the suction assembly to move to the feeding part to suck the bus bar provided by the feeding part through the suction assembly, and is further configured to drive the suction assembly to move to the second bearing part to press the sucked bus bar against the plurality of welding strips at the end of the battery string group borne by the second bearing part along the second horizontal direction.

3. The photovoltaic module welding apparatus of claim 2, wherein, The suction assembly comprises a suction member and an air suction part, the suction surface of the suction member extends along the second horizontal direction, a plurality of suction holes are arranged in parallel along the second horizontal direction on the suction surface of the suction member, an air suction channel is arranged in the suction member, the first end of the air suction channel is connected to the suction hole, the second end of the air suction channel is connected to the air suction part, and the air suction part is configured to suck the air in the air suction channel to suck the bus bar on the suction surface of the suction member through the plurality of suction holes.

4. The photovoltaic module welding apparatus of claim 2, wherein, The first driving assembly comprises a first driving member, a transverse moving seat and a second driving member, wherein: The driving end of the first driving member is connected to the transverse moving seat, and the first driving member is configured to drive the transverse moving seat to move back and forth along the first horizontal direction. The fixed end of the second driving member is mounted on the transverse moving seat, and the driving end of the second driving member is connected to the adsorption assembly, and the second driving member is configured to drive the adsorption assembly to move up and down.

5. The photovoltaic module welding apparatus of claim 3, wherein, The welding part is arranged above the second bearing part, and the welding part comprises a second driving assembly and a laser welding mechanism, wherein: The driving end of the second driving assembly is connected to the laser welding mechanism, and the second driving assembly is configured to drive the laser welding mechanism to move back and forth along the second horizontal direction. A plurality of light transmission holes are arranged along the second horizontal direction on the adsorption component and are arranged through, and the plurality of light transmission holes are arranged staggered with the plurality of adsorption holes, and each light transmission hole corresponds to an overlapping part. The laser welding mechanism is configured to emit laser to the corresponding overlapping part through the light transmission hole, so as to weld and fix the bus bar and the welding strip of the overlapping part.

6. The photovoltaic module welding apparatus of claim 5, wherein, The second driving assembly is also configured to drive the laser welding mechanism to move up and down, and the second driving assembly comprises a third driving member, a lifting seat and a fourth driving member, wherein: The driving end of the third driving member is connected to the lifting seat, and the third driving member is configured to drive the lifting seat to move up and down. The fixed end of the fourth driving member is mounted on the lifting seat, and the driving end of the fourth driving member is connected to the laser welding mechanism, and the fourth driving member is configured to drive the laser welding mechanism to move back and forth along the second horizontal direction.

7. The photovoltaic module welding apparatus of claim 1, wherein, The second bearing part comprises a bearing member, and the bearing member is used to bear the part of the battery string group protruding from the first bearing part, and the bearing surface of the bearing member is covered with a flexible gasket.

8. The photovoltaic module welding apparatus of claim 1, wherein, The second bearing part comprises a bearing member and a support seat, and the bearing member is used to bear the part of the battery string group protruding from the first bearing part, and the bearing member is elastically and floatingly mounted on the support seat.

9. The photovoltaic module welding apparatus of claim 1, wherein, The first bearing part comprises a conveying line arranged along the second horizontal direction, and the conveying line is used to receive the battery string group with the bus bar to be welded and convey the battery string group to the second bearing part, so that the part of the battery string group protruding from the conveying line is located on the second bearing part. The conveying line is also configured to convey the battery string group after the bus bar is welded to the next process.

10. The photovoltaic module welding apparatus of claim 9, wherein, The second bearing part comprises a fifth driving member and a bearing member, and the bearing member has a bearing surface extending along the second horizontal direction, wherein: The driving end of the fifth driving member is connected to the bearing member, and the fifth driving member is configured to drive the bearing member to move up and down to a high position or a low position. The fifth driving member drives the bearing member to move to the high position, so as to bear the part of the battery string group protruding from the conveying line by the bearing member. The fifth driving member drives the bearing member to move to the low position, so as to avoid the moving path of the battery string group.

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