CN114335245A - Battery piece series welding busbar welding all-in-one - Google Patents

Abstract

The invention relates to a series welding and bus bar welding integrated machine for battery plates, which comprises a battery series forming part, a battery series conveying part, a battery series bearing part, a bus bar conveying part and a bus bar welding part, wherein the battery series forming part is arranged on the battery series conveying part; the battery string forming part welds the battery piece and the welding strip into a battery string; the battery string conveying part conveys the battery string to the battery string bearing part; the bus bar conveying part conveys the bus bars to the battery string bearing part and stacks the bus bars on the battery strings; the bus bar welding part welds the bus bar on the battery string; or the bus bar conveying part conveys the bus bar to the battery string bearing part; the battery string conveying part conveys the battery string to the battery string bearing part and stacks the battery string on the bus bar; the bus bar welding portion welds the battery string to the bus bar. After the battery pieces are welded into a string, the battery piece string welding and the bus bar welding are integrated in one device by completing the online welding of the bus bar on the battery string bearing part, so that the device size is reduced, and the device cost is reduced.

Description

Cell String Welding Bus Bar Welding Machine

technical field

The invention relates to photovoltaic cell production equipment, in particular to an integrated machine for stringing and welding busbars of battery slices.

Background technique

The traditional processing sequence of photovoltaic cell modules is as follows: first, use a stringer to weld the cells into battery strings; then, the stringer sends the battery strings to the typesetting machine, and the typesetting machine arranges the battery strings on the glass back in a predetermined order. Then, the glass back plate carrying the battery strings is transported to the position of the stitch welding machine, and the stitch welding machine picks up the battery strings and welds the bus bars on the ends of the battery strings.

This traditional processing procedure needs to configure a special stitch welding machine station, which causes the entire photovoltaic cell production equipment to occupy a large space, which is not conducive to the layout of the production site equipment.

SUMMARY OF THE INVENTION

Aiming at the problem that the existing photovoltaic cell production equipment occupies a large space, the present invention provides an integrated machine for stringing and welding busbars of battery chips, which can reduce the volume of the equipment.

The technical solution of the present invention is as follows: an integrated machine for stringing and welding of battery slices and bus bars, comprising a battery string forming part, a battery string conveying part, a battery string bearing part, a bus bar conveying part and a bus bar welding part; wherein:

The battery string forming part is configured to weld the battery strings into battery strings after stacking the battery sheets and the welding ribbons in a predetermined order;

The battery string conveying part is configured to convey the battery strings to the battery string carrying part; the bus bar conveying part is configured to convey the bus bars to the battery string carrying part, and stack the bus bars on the predetermined positions on the battery strings; the bus bars The welding portion is configured to weld the bus bar to the battery string;

Alternatively, the bus bar conveying part is configured to convey the bus bar to a predetermined position on the battery string carrying part; the battery string conveying part is configured to convey the battery string to the battery string carrying part and stack the battery string on the bus bar ; The bus bar welding portion is configured to weld the battery string on the bus bar.

After the cells are welded into a string, the battery string and the bus bars are transported to the battery string carrying part, and the online welding of the bus bars is completed on the battery string carrying part, so that the cell string welding and the bus bar welding are integrated in one device. , the separate stitch welding equipment used in the subsequent process in the prior art is saved, the size of the equipment is reduced, the space occupied by the entire equipment is saved, and the equipment cost is reduced.

Further, the battery string forming part includes a battery chip feeding device, a welding ribbon feeding device, a welding conveying device and a battery string welding device; the battery chip feeding device and the welding ribbon feeding device are configured to Stacked on the welding conveyor in a predetermined order; the welding conveyor is configured to transport the stacked welding strips and battery sheets to the battery string welding device; the battery string welding device is configured to transport the battery sheets and the welding strips Solder into battery strings.

The battery sheet and the welding ribbon are respectively conveyed to the welding conveying device through the battery sheet feeding device and the welding ribbon feeding device, and the battery sheet and the welding ribbon are welded into a battery string through the battery string welding device.

Further, the battery string conveying part includes a battery string transport mechanism and a battery string transport mechanism; the battery string transport mechanism is configured to carry and transport the battery strings, and the battery string transport mechanism is configured to transport the battery string on the battery string transport mechanism to the battery String carrying portion.

The battery strings on the battery string transport mechanism are transported to the battery string carrying part by the battery string transport mechanism, so as to realize the transfer of the battery strings.

Further, the bus bar conveying part includes a bus bar carrying table and a bus bar conveying mechanism; the bus bar carrying table is configured to carry the bus bars, and the bus bar conveying mechanism is configured to carry the bus bars on the bus bar carrying table to the battery string carrying mechanism. department.

The bus bars on the bus bar carrying platform are conveyed to the battery string carrying part by the bus bar conveying mechanism, so as to realize the feeding of the bus bars.

Further, the bus bar conveying mechanism includes a slide rail and a plurality of adsorption mechanisms slidably fitted on the slide rail, and each adsorption mechanism is configured to adsorb one bus bar.

The bus bar is adsorbed by the adsorption mechanism, and the adsorption mechanism is guided by the slide rail, which can realize the smooth feeding of the bus bar.

Further, the bus bar conveying part also includes a bus bar feeding mechanism, a bus bar pulling mechanism and a bus bar cutting mechanism, and the bus bar cutting mechanism is installed between the bus bar feeding mechanism and the bus bar pulling mechanism; The busbars stored in rolls are configured, the busbar pulling mechanism is configured to pull the busbars stored in the busbar feeding mechanism to the busbar carrying platform, and the busbar cutting mechanism is configured to cut the busbars drawn by the busbar pulling mechanism strip.

The busbars in rolls are stored by the busbar feeding mechanism, the busbars stored in the busbar feeding mechanism are pulled to the busbar bearing platform by the busbar pulling mechanism, and the busbars pulled by the busbar pulling mechanism are cut by the busbar cutting mechanism. The bus bar can produce the bus bar that meets the requirements in the vicinity of the bus bar bearing platform, which improves the production efficiency.

Further, the bus bar traction mechanism includes a collet, a collet driving mechanism and a collet traverse mechanism, a plurality of collets are installed on the movable parts of the collet drive mechanism, and the collet drive mechanism is installed on the collet traverse mechanism; The chuck driving mechanism is used for driving the chuck to clamp the free end of the bus bar, and the chuck traverse mechanism is used for driving the chuck driving mechanism to move, so that the bus bar is placed on the bus bar bearing platform.

The collet is driven by the collet drive mechanism to clamp the free end of the bus bar, and the collet drive mechanism is driven to move by the collet traverse mechanism, so that the bus bar is placed on the bus bar carrying platform, so that the bus bar can be transferred to the bus bar smoothly and reliably. Strip carrier.

Further, the bus bar conveying part further includes a bus bar pressing mechanism; the bus bar pressing mechanism is installed between the bus bar feeding mechanism and the bus bar cutting mechanism, and the bus bar pressing mechanism is configured to press the bus bar when the bus bar is cut. Tighten the bus bars.

By configuring the bus bar pressing mechanism to press the bus bar when the bus bar is cut, the bus bar can be prevented from jumping and the quality of the bus bar is affected.

Further, the welding part of the bus bar includes a welding support, a welding head and a rotating mechanism, the welding head is installed on the welding support, and the welding support is installed on the rotating mechanism; the rotating mechanism is configured to drive the welding support to rotate, so that the welding head moves to the bus bar. Position of welding.

Drive the welding bracket to rotate through the rotating mechanism, move it to the welding position of the bus bar when the welding head is working, and remove the welding head when the welding head is not needed to avoid the welding head touching the battery string or the bus bar, thus affecting the Soldering quality of bus bars.

Further, when a string of battery strings is carried on the battery string carrying portion, two groups of welding heads are configured, and the two groups of welding heads are respectively set corresponding to the positions of the welding bus bars at both ends of a string of battery strings;

Alternatively, when two strings of battery strings arranged along the length direction of the battery strings are carried on the battery string carrying portion, three groups of welding heads are arranged, and the three groups of welding heads correspond to the positions of the welding bus bars at both ends of the two strings of battery strings and the adjacent ones. location settings.

By configuring different numbers of welding heads, the welding part of the bus bar can be suitable for welding bus bars at both ends of a long string of batteries, or for welding bus bars at both ends of two strings of short battery strings arranged in sequence. to improve the applicability of the equipment.

Description of drawings

FIG. 1 is a schematic three-dimensional structure diagram of an optional embodiment of the present invention.

FIG. 2 is a top view of FIG. 1 .

FIG. 3 is a schematic three-dimensional structural diagram of the bus bar conveying mechanism in FIG. 1 .

FIG. 4 is a schematic three-dimensional structural diagram of the bus bar pulling mechanism in FIG. 1 .

FIG. 5 is a perspective view of FIG. 4 from another perspective.

FIG. 6 is a front view of FIG. 4 .

FIG. 7 is a schematic three-dimensional structural diagram of the welding portion of the bus bar in FIG. 1 .

In Figures 1 to 7, including:

Battery chip string welding bus bar welding integrated machine 1;

rack 10;

battery string conveying part 20, battery string transmission mechanism 21;

the battery string carrying part 30, the battery string carrying plate 31;

Bus bar conveying part 40, bus bar carrying table 41, bus bar conveying mechanism 42, slide rail 421, adsorption mechanism 422, bus bar feeding mechanism 43, bus bar pulling mechanism 44, chuck 441, chuck driving mechanism 442, chuck Head traverse mechanism 443, bus bar cutting mechanism 45, bus bar pressing mechanism 46;

The bus bar welding part 50 , the welding bracket 51 , the welding head 52 , and the rotating mechanism 53 .

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 and FIG. 2 , the present invention is an integrated machine 1 for battery string welding and bus bar welding, which is used to complete the welding of battery strings and the welding of bus bars in one device. The products discharged from this equipment are directly sent to the downstream typesetting machine for typesetting.

The battery string welding and bus bar welding integrated machine 1 includes a battery string forming part, a battery string conveying part 20 , a battery string carrying part 30 , a bus bar conveying part 40 and a bus bar welding part 50 ; the above components are all installed on the rack 10 superior.

The welding methods between the bus bar and the battery string include the following two.

The first type: the battery string forming part is configured to stack the battery sheets and the welding tape in a predetermined order, and then weld them into a battery string; the battery string conveying part 20 is configured to convey the battery string to the battery string carrying part 30; The bus bar conveying part 40 is configured to convey the bus bars to the battery string carrying part 30 and stack the bus bars at predetermined positions on the battery strings; the bus bar welding part 50 is configured to weld the bus bars on the battery strings.

Or, the second type: the bus bar conveying part 40 is configured to convey the bus bar to a predetermined position on the battery string carrying part 30; the battery string conveying part 20 is configured to convey the battery string to the battery string carrying part 30, and The battery strings are stacked on the bus bars; the bus bar welds 50 are configured to weld the battery strings to the bus bars.

After the cells are welded into a string, the battery string and the bus bars are transported to the battery string carrying part 30, and the online welding of the bus bars is completed on the battery string carrying part 30, so that the cell string welding and the bus bar welding are integrated into one device It is completed in the middle, which saves the separate stitch welding equipment used in the subsequent process in the prior art, reduces the size of the equipment, saves the space occupied by the entire equipment, and reduces the equipment cost. The bus bars and battery strings are welded in two optional welding sequences, which can be flexibly selected according to the actual production conditions.

As an optional embodiment, the battery string forming part includes a battery chip feeding device, a welding ribbon feeding device, a welding conveying device and a battery string welding device; the battery chip feeding device and the welding ribbon feeding device are configured as The battery sheets and the welding strip are stacked on the welding conveying device in a predetermined order; the welding conveying device is configured to convey the stacked welding strips and the battery sheets to the battery string welding device; the battery string welding device is configured to Solder the battery sheets and ribbons into battery strings.

The battery sheet and the welding ribbon are respectively conveyed to the welding conveying device through the battery sheet feeding device and the welding ribbon feeding device, and the battery sheet and the welding ribbon are welded into a battery string through the battery string welding device.

As an optional embodiment, the battery string conveying part 20 includes a battery string transport mechanism 21 and a battery string transport mechanism (not shown in the figure); the battery string transport mechanism 21 is configured to carry and transport the battery strings, and the battery string transport mechanism 21 is configured to carry and transport battery strings. The mechanism is configured to carry the battery strings on the battery string transfer mechanism 21 to the battery string carrier 30 .

The battery strings on the battery string transport mechanism 21 are transported to the battery string carrying portion 30 by the battery string transport mechanism to realize the transfer of the battery strings.

In this embodiment, optionally, the battery string transport mechanism 21 adopts a conveyor belt, and the battery string transport mechanism adopts a robot.

As an optional embodiment, the bus bar conveying part 40 includes a bus bar carrying table 41 and a bus bar conveying mechanism 42; the bus bar carrying table 41 is configured to carry the bus bars, and the bus bar conveying mechanism 42 is configured to carry the bus bars The bus bars on the carrier table 41 are conveyed to the battery string carrier 30 . Optionally, the bus bar carrier 41 may place at least two bus bars in parallel at a time.

The bus bars on the bus bar carrying platform 41 are conveyed to the battery string carrying portion 30 by the bus bar conveying mechanism 42 to realize the loading of the bus bars.

As shown in FIG. 3 , as an optional embodiment, the bus bar conveying mechanism 42 includes a slide rail 421 and a plurality of adsorption mechanisms 422 slidably fitted on the slide rail 421 , and each adsorption mechanism 422 is configured to adsorb one bus bar. In this embodiment, there are three adsorption mechanisms 422, which can be moved independently along the slide rails 421 respectively. Specifically, as shown in FIG. 1 and FIG. 2 , the bus bar conveying mechanism 42 is installed above the bus bar carrying table 41 , and can move the bus bars on the bus bar carrying table 41 to a predetermined position after being adsorbed.

The bus bar is adsorbed by the adsorption mechanism 422, and the sliding rail 421 guides the adsorption mechanism 422, so that the bus bar can be smoothly fed.

Optionally, the adsorption mechanism 422 adopts any adsorption structure in the prior art, such as vacuum adsorption.

As shown in FIGS. 1 and 2 , as an optional embodiment, the bus bar conveying part 40 further includes a bus bar feeding mechanism 43 , a bus bar pulling mechanism 44 and a bus bar cutting mechanism 45 , and the bus bar cutting mechanism 45 is installed Between the bus bar feeding mechanism 43 and the bus bar pulling mechanism 44; the bus bar feeding mechanism 43 is configured to store the bus bars in rolls, and the bus bar pulling mechanism 44 is configured to The bus bars are pulled to the bus bar carrying table 41 , and the bus bar cutting mechanism 45 is configured to cut the bus bars pulled by the bus bar pulling mechanism 44 .

The busbars in rolls are stored by the busbar feeding mechanism 43 , the busbars stored in the busbar feeding mechanism 43 are pulled to the busbar carrying table 41 by the busbar pulling mechanism 44 , and the busbars are cut by the busbar cutting mechanism 45 The bus bars pulled out by the pulling mechanism 44 can produce the bus bars that meet the requirements near the bus bar carrying platform 41, thereby improving the production efficiency.

The bus bar feeding mechanism 43 is used to supply the bus bars. Optionally, at least three bus bars may be provided at a time, corresponding to the ends of the battery strings and the middle of the two strings of battery strings, respectively.

As shown in FIGS. 4 to 6 , as an optional embodiment, the bus bar pulling mechanism 44 includes a chuck 441 , a chuck driving mechanism 442 and a chuck traverse mechanism 443 . The collet 441 is used to clamp the bus bar, a plurality of collets 441 (three in this embodiment) are installed on the movable part of the collet driving mechanism 442 , and the collet driving mechanism 442 is installed on the collet traverse mechanism 443 The chuck drive mechanism 442 is used to drive the chuck 441 to clamp the free end of the bus bar, and the chuck traverse mechanism 443 is used to drive the chuck drive mechanism 442 to move, so that the bus bar is placed on the bus bar carrier 41 . The bus bar pulling mechanism 44 drives and pulls the bus bar to a predetermined length, and then is cut by the bus bar cutting mechanism 45 .

The collet 441 is driven by the collet driving mechanism 442 to clamp the free end of the bus bar, and the collet driving mechanism 442 is driven to move by the collet traversing mechanism 443, so that the bus bar is placed on the bus bar bearing platform 41, so as to realize the stable and smooth operation of the bus bar. Reliably transferred to the bus bar stage 41 .

The chuck driving mechanism 442 and the chuck traverse mechanism 443 may adopt any structure in the prior art. Optionally, the collet drive mechanism 442 adopts a cylinder; the collet traverse mechanism 443 adopts a motor and a slide rail slider structure, the collet drive mechanism 442 is installed on the slide rail through the slider, and the motor drives the collet drive mechanism 442 along the slide rail. The rail slides.

1 and 2 again, as an optional embodiment, the bus bar conveying part 40 further includes a bus bar pressing mechanism 46; the bus bar pressing mechanism 46 is installed on the bus bar feeding mechanism 43 and the bus bar cutting mechanism Between 45, a bus bar pressing mechanism 46 is configured to compress the bus bar as it is cut.

By configuring the bus bar pressing mechanism 46 to press the bus bars when the bus bars are cut, the bus bars can be prevented from jumping and the quality of the bus bars is affected.

As shown in FIG. 7 , as an optional embodiment, the bus bar welding part 50 includes a welding bracket 51 , a welding head 52 and a rotating mechanism 53 , the welding head 52 is installed on the welding bracket 51 , and the welding bracket 51 is installed on the rotating mechanism 53; the rotating mechanism 53 is configured to drive the welding bracket 51 to rotate, so that the welding head 52 moves to the bus bar welding position. Optionally, the rotating mechanism 53 employs a motor.

The welding bracket 51 is driven by the rotating mechanism 53 to rotate, and the welding head 52 is moved to the welding position of the bus bar when the welding head 52 is working. Or bus bars, thus affecting the welding quality of the bus bars.

In this embodiment, when the battery string carrying portion 30 carries a string of battery strings, two groups of welding heads 52 are configured, and the two groups of welding heads 52 are respectively set corresponding to the positions of the welding bus bars at both ends of a string of battery strings; or When the battery string carrying portion 30 carries two strings of battery strings arranged along the length direction of the battery strings, three groups of welding heads 52 are configured, and the three groups of welding heads 52 correspond to the positions of the welding bus bars at both ends of the two strings of battery strings respectively. and the adjacency location settings.

By arranging different numbers of welding heads 52, the bus bar welding part 50 can be suitable for welding bus bars at both ends of a long battery string, or at both ends of two short battery strings arranged in sequence. Solder the bus bars to improve the applicability of the equipment.

The invention has been described above in sufficient detail with certain particularities. Those of ordinary skill in the art should understand that the descriptions in the embodiments are only exemplary, and all changes made without departing from the true spirit and scope of the present invention should belong to the protection scope of the present invention. The claimed scope of the present invention is defined by the claims, rather than by the above description in the embodiments.

Claims (10)

1. The all-in-one machine for welding the serial welding bus bars of the battery pieces is characterized by comprising a battery serial string part, a battery serial conveying part, a battery serial bearing part, a bus bar conveying part and a bus bar welding part; wherein:

the battery string stringing part is configured to stack battery sheets and welding strips according to a preset sequence and then weld the battery sheets and the welding strips into a battery string;

the battery string conveying section is configured to convey a battery string to the battery string carrying section; the bus bar conveying portion is configured to convey a bus bar to the battery string carrying portion and to stack the bus bar at a predetermined position on the battery string; the bus bar welding portion is configured to weld the bus bar on the battery string;

or, the bus bar conveying part is configured to convey a bus bar to a predetermined position on the battery string carrying part; the battery string conveying part is configured to convey a battery string to the battery string carrying part and to stack the battery string on the bus bar; the bus bar welding portion is configured to weld the battery string on the bus bar.

2. The integrated machine for welding the battery plate string welding bus bars according to claim 1, wherein the battery string forming part comprises a battery plate feeding device, a welding strip feeding device, a welding conveying device and a battery string welding device;

the battery piece feeding device and the welding strip feeding device are configured to stack battery pieces and welding strips on the welding conveying device according to a preset sequence;

the welding conveying device is configured to convey the welding strips and the battery pieces which are stacked together to the battery string welding device;

the battery string welding device is configured to weld the battery piece and the welding strip into a battery string.

3. The integrated machine for welding the cell string welding bus bars according to claim 1, wherein the cell string conveying part comprises a cell string conveying mechanism and a cell string carrying mechanism; the battery string conveying mechanism is configured to carry and convey a battery string, and the battery string conveying mechanism is configured to convey the battery string on the battery string conveying mechanism to the battery string carrying part.

4. The integrated machine for welding battery pieces and serial welding busbars according to claim 1, wherein the busbar conveying part comprises a busbar bearing platform and a busbar carrying mechanism; the bus bar carrier is configured to carry bus bars, and the bus bar carrying mechanism is configured to carry the bus bars on the bus bar carrier to the battery string carrying portion.

5. The integrated battery piece string welding and bus bar welding machine of claim 4, wherein the bus bar carrying mechanism comprises a slide rail and a plurality of suction mechanisms slidably fitted on the slide rail, and each suction mechanism is configured to suck one bus bar.

6. The integrated string welding and bus bar welding machine for battery plates according to claim 4, wherein the bus bar conveying part further comprises a bus bar feeding mechanism, a bus bar drawing mechanism and a bus bar cutting mechanism, and the bus bar cutting mechanism is installed between the bus bar feeding mechanism and the bus bar drawing mechanism; the bus bar feeding mechanism is configured to store rolled bus bars, the bus bar drawing mechanism is configured to draw the bus bars stored in the bus bar feeding mechanism to the bus bar carrying table, and the bus bar cutting mechanism is configured to cut off the bus bars drawn by the bus bar drawing mechanism.

7. The integrated machine of claim 6, wherein the bus bar pulling mechanism comprises a plurality of chucks, a chuck driving mechanism and a chuck traversing mechanism, the plurality of chucks are mounted on a movable part of the chuck driving mechanism, and the chuck driving mechanism is mounted on the chuck traversing mechanism; the bus bar bearing platform is characterized in that the clamping head driving mechanism is used for driving the clamping head to clamp the free end of the bus bar, and the clamping head transverse moving mechanism is used for driving the clamping head driving mechanism to move so as to enable the bus bar to be placed on the bus bar bearing platform.

8. The integrated machine of claim 6, wherein the busbar conveying part further comprises a busbar pressing mechanism; the bus bar pressing mechanism is installed between the bus bar feeding mechanism and the bus bar cutting mechanism, and the bus bar pressing mechanism is configured to press the bus bar when the bus bar is cut.

9. The integrated machine of claim 1, wherein the bus bar welding part comprises a welding bracket, a welding head and a rotating mechanism, the welding head is mounted on the welding bracket, and the welding bracket is mounted on the rotating mechanism; the rotating mechanism is configured to rotate the welding bracket to move the welding head to a bus bar welding position.

10. The integrated machine of claim 9, wherein the welding device comprises a welding head and a welding rod assembly,

when a string of battery strings is loaded on the battery string bearing part, two groups of welding heads are configured, and the two groups of welding heads are respectively arranged corresponding to the positions of the bus bars welded at the two ends of the string of battery strings;

or, when two battery strings arranged along the length direction of the battery strings are loaded on the battery string bearing part, three groups of welding heads are arranged, and the three groups of welding heads are respectively arranged corresponding to the positions of the bus bars welded at the two ends of the two battery strings and the adjacent positions.

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