CN109014684B - Conveyor belt, conveyor and stringer - Google Patents

Abstract

The invention discloses a conveying belt, a conveying device and a stringer, and belongs to the field of photovoltaic equipment manufacturing. The conveying belt comprises an intermediate conveying part for conveying the battery piece and the welding strip, and a positioning part arranged on the side edge of the intermediate conveying part and used for positioning a welding strip pressing device, and the welding strip pressing device presses the welding strip on the intermediate conveying part and the battery piece together; the problem that the welding strip is not compressed due to the fact that the compressing device is possibly shifted in the process that the conveying device conveys the battery piece, the welding strip and the compressing device to a welding position in the related art is solved; the effects of reducing the possibility of cold joint and improving the quality and service life of the photovoltaic battery component are achieved.

Description

Conveyor belts, conveyors and stringer welders

Technical field

The invention belongs to the field of photovoltaic equipment manufacturing and relates to a conveyor belt, a conveyor device and a string welding machine.

Background technique

Photovoltaic cell modules can convert solar energy into electrical energy and are currently being gradually used. During the production of photovoltaic cell modules, welding ribbons need to be welded to the cells to achieve the purpose of welding the cells into battery strings. During welding, if the welding ribbon is not close to the main grid line of the cell, it will cause a false weld. In order to make the welding ribbon close to the main grid line of the cell during welding, the welding ribbon needs to be compressed.

At present, the battery sheets and welding strips to be welded are first stacked on the conveyor belt of the conveyor device in a predetermined manner, and the pressing device crosses the conveyor belt to press the welding strip by its own gravity. However, when the conveyor device transports the cells, welding ribbons and compression devices to the welding point, the compression device may shift, causing the welding ribbons to not be compressed, resulting in false welding, which affects the quality and life of the photovoltaic cell components. .

Contents of the invention

In order to solve the problem in the related art that when the conveying device transports the battery sheets, the welding strips and the pressing device to the welding place, the pressing device may be displaced and the welding strip is not pressed, an embodiment of the present invention provides a Conveyor belts, conveyors and string welding machines. The technical solutions are as follows:

In a first aspect, a conveyor belt is provided, which conveyor belt includes an intermediate conveyor portion for conveying battery sheets and welding strips, and a positioning portion provided on the side of the intermediate conveying portion for positioning a welding strip pressing device. , the welding ribbon pressing device presses the welding ribbon and the battery sheet on the intermediate conveying part together; solving the problem in the related art that the conveying device transports the battery sheet, the welding ribbon and the pressing device to the welding place. , the pressing device may shift, causing the welding strip to not be pressed tightly; this achieves the effect of reducing the possibility of false welding and improving the quality and life of photovoltaic cell components.

Optionally, the positioning part is a strip-shaped boss provided along the side of the intermediate conveying part, and the boss is used to carry the support component of the welding strip pressing device; on the boss At least one first positioning groove is provided, and the bottom of the support component of the welding strip pressing device is provided with a first protrusion that matches the first positioning groove; or, at least one first protrusion is provided on the boss. Two-position protrusion, the bottom of the support component of the welding strip pressing device is provided with a second positioning groove that matches the second protrusion.

Optionally, the positioning part is a strip-shaped boss provided along the side of the intermediate conveying part, the surface of the boss is a rough surface, and the rough surface is used to carry the welding strip pressure. The support assembly of the welding strip holding device may be provided with a magnet below the boss, and the supporting assembly of the welding strip holding device may include a component made of magnetically absorbing material.

By configuring the positioning part as a strip-shaped boss along the side of the middle conveying part, the boss provided on the conveyor belt increases the thickness of the conveyor belt and extends the service life of the belt.

Optionally, the positioning part is provided with at least one positioning groove or through hole, and the positioning groove or the through hole is used to accommodate and position the support component of the welding strip pressing device; or, the positioning part is provided with at least one positioning groove or through hole. At least one adsorption hole is provided, and the adsorption hole is used to adsorb the support component of the welding ribbon pressing device.

Optionally, the positioning part and the intermediate conveying part are connected to form the conveying belt as a whole, or the positioning part is a steel belt independent of the intermediate conveying part, and the steel belt is connected to the intermediate conveying part. The parts are rotated and transported synchronously.

In a second aspect, a conveying device is provided. The conveying device includes a power device, a roller, and a conveying belt as related to the first aspect, wherein: the conveying belt is sleeved on the roller, and the power device can drive The roller rotates; when the roller rotates, the conveyor belt transports the battery chips, welding ribbons and welding ribbon pressing device placed on the conveyor belt.

Optionally, the positioning part is provided with an adsorption hole, and the conveying device further includes a vacuuming device, wherein: the vacuuming device is provided below the conveying belt; when the vacuuming device vacuums, it passes through the The adsorption hole adsorbs the welding strip pressing device to the conveyor belt to prevent the battery sheets from slipping on the conveyor belt during the conveyance process.

Optionally, the conveying device further includes a vacuuming device, wherein: a plurality of adsorption holes are provided on the middle conveying part of the conveying belt, and the vacuuming device is provided below the conveying belt; the vacuuming device During vacuuming, the battery chips on the conveyor belt are adsorbed on the conveyor belt through the adsorption holes on the intermediate conveyor part.

In a third aspect, a string welding machine is provided. The string welding machine includes the conveyor belt related to the first aspect and any optional embodiment of the first aspect, or the string welding machine includes the second aspect and the second aspect. The conveying device according to any optional embodiment of the two aspects.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of an intermediate conveying part and a positioning part in a conveyor belt provided in one embodiment of the present invention;

Figure 2 is a schematic structural diagram of a conveying device provided in an embodiment of the present invention;

Figure 3 is a schematic structural diagram of another conveying device provided in an embodiment of the present invention.

Among them, the reference signs are as follows:

10. Conveyor belt, 11. Conveying part, 12. Positioning part, 13. Welding belt pressing device, 14. Battery piece.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Please refer to FIG. 1 , which shows a conveyor belt 10 provided by an embodiment of the present invention. The conveyor belt 10 includes an intermediate conveying part 11 for conveying battery cells and welding strips (not shown in the figure), and a positioning part 12 provided on the side of the intermediate conveying part 11 for positioning the welding strip pressing device. The belt pressing device (not shown in the figure) presses the welding strip (not shown in the figure) and the battery piece (not shown in the figure) on the intermediate conveying part together.

The positioning part 12 of the conveyor belt 10 is described below with several examples:

In the first example, as shown in FIG. 2 , the intermediate conveying part 11 of the conveying belt 10 is used to convey battery chips 14 and welding strips (not shown in the figure), and the positioning part 12 is provided along the side of the intermediate conveying part 11 A long strip-shaped boss, which is used to carry the support component of the welding strip pressing device 13.

Optionally, at least one first positioning groove is provided on the boss, and the bottom of the support component of the welding strip pressing device 13 is provided with a first protrusion that matches the first positioning groove; and/or, a first positioning groove is provided on the boss. There is at least one second position protrusion, and the bottom of the support assembly of the welding strip pressing device 13 is provided with a second positioning groove that matches the second protrusion.

Optionally, the surface of the boss is a rough surface, and the rough surface is used to carry the bottom of the support component of the welding strip pressing device 13 .

Optionally, a magnet is provided under the boss, and the support assembly of the welding ribbon pressing device 13 includes components made of magnetically absorbing materials. The attraction force between the magnet and the magnetically absorbing material drives the welding ribbon pressing device 13 and the conveyor belt 10 Synchronous transmission.

In the second example, the two sides of the middle conveying part 11 on the conveyor belt 10 are positioning parts 12. The positioning part 12 is provided with at least one positioning groove or through hole. The positioning groove or through hole is used to accommodate the positioning welding belt and press it. Support assembly of device 13.

In the third example, the two sides of the middle conveying part 11 on the conveying belt 10 are positioning parts 12, and the positioning part 12 is provided with adsorption holes; when the vacuum device below the conveying belt 10 evacuates, the adsorption holes are After the support component of the welding ribbon compression device 13 is adsorbed to the conveyor belt 10, the adsorption force is used to control the synchronous transmission of the welding ribbon compression device 13 and the conveyor belt 10.

Optionally, the positioning part 12 involved in this application may be connected to the intermediate conveying part 11 to form a conveyor belt 10 as a whole. For example, please refer to FIG. 2 , the positioning part 12 is a long boss provided along the side of the intermediate conveying part 11 , and is connected with the intermediate conveying part 11 to form the conveying belt 10 .

Optionally, the positioning part 12 involved in this application may be a steel belt independent of the intermediate conveying part 11 , and the steel belt rotates and conveys synchronously with the intermediate conveying part 11 . For example, as shown in FIG. 3 , the positioning part 12 is a steel belt and is independent of the intermediate conveying part 11 .

One embodiment of the present invention also provides a conveying device. The conveying device includes a power device, a roller, and a conveyor belt 10 related to any of the above embodiments, wherein: the conveyor belt 10 is set on the roller, and the power device can drive the roller to rotate. ; When the roller rotates, the conveyor belt 10 transports the battery chips 14, the welding strip (not shown in the figure) and the welding strip pressing device 13 placed on the conveying belt 10.

Optionally, the conveying device also includes a vacuuming device, which is arranged below the conveying belt 10; when the vacuuming device vacuums, the welding strip pressing device 13 is adsorbed to the conveying belt 10 through the adsorption holes on the positioning part 12. superior.

Optionally, the conveying device also includes a vacuuming device and a plurality of adsorption holes are provided on the intermediate conveying part 11 of the conveying belt 10. The vacuuming device is provided below the conveying belt 10; when the vacuuming device vacuums, it passes through the intermediate conveying part. The adsorption holes on the conveyor belt 11 adsorb the battery sheets 14 on the conveyor belt 10 to prevent the battery sheets 14 from slipping during conveyance.

Optionally, another embodiment of the present invention also provides a conveyor device, in which a metal support is provided on the support plate below the conveyor belt 10, and magnets are provided on the welding strip pressing device 13. Through the magnet and the metal support The adsorption realizes that the welding belt pressing device 13 is driven synchronously with the conveyor belt 10.

The present invention also provides a string welding machine, which includes the conveyor belt 10 according to any of the above embodiments, or the string welding machine includes the conveying device according to any of the above embodiments.

The string welding machine also includes a battery chip loading device, a flux spraying device, a ribbon feeding device, a welding device, a stringing device, and a discharging device; the loading device includes a battery box conveyor, an auxiliary loading gripper, and a CCD detection The platform, manipulator, and battery box conveyor are used to transport the battery boxes carrying battery cells to the loading position. The auxiliary loading gripper is used to take the battery cells out of the battery box and place them on the loading conveyor device. The conveying device transports the battery slices to the CCD detection platform. The robot grabs the battery slices from the CCD platform and places them on the conveying device. The welding ribbon feeding device includes a welding ribbon feeding tray bracket, and the welding ribbon feeding tray bracket is used for Storage of welding tape reels, welding ribbon buffering device for buffering the welding ribbon pulled out from the welding ribbon supply tray, welding ribbon straightening device for conveying and guiding the welding ribbon, and welding ribbon cutting device for cutting the welding ribbon , the traction device is used to pull the welding ribbon out to a predetermined length, and then cut it by the welding ribbon cutting device; the traction device can pull the welding ribbon to the conveying device, and the traction device can also pull the welding ribbon to the transfer platform. The belt conveying device transports the welding strips to the conveying device. The traction device or the welding strip conveying device transports the welding strips to the conveying device and stacks the battery sheets transported by the robot in a certain order. The conveying device drives the stacked battery sheets to the welding unit. At the device, the welding device welds the welding ribbons and battery sheets into strings and strings. The stringing device is used to cut the battery strings into predetermined lengths. The discharging device is used to output the string welding machine cut into predetermined lengths; flux spraying The device can spray flux onto the cells, or onto the soldering strips, or spray flux onto the soldering strips and cells simultaneously.

Other embodiments of the invention will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary technical means in the technical field not disclosed by the invention. . It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It is to be understood that the present invention is not limited to the precise construction described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (5)

1. The conveying belt is characterized by comprising an intermediate conveying part used for conveying the battery piece and the welding strip, and a positioning part arranged on the side edge of the intermediate conveying part and used for positioning a welding strip pressing device, wherein the welding strip pressing device presses the welding strip on the intermediate conveying part and the battery piece together;

the positioning part is a strip-shaped boss arranged along the side edge of the middle conveying part, and the boss is used for bearing a supporting component of the welding strip pressing device;

the welding strip pressing device comprises a boss, a welding strip pressing device and a welding strip pressing device, wherein the boss is provided with at least one first positioning groove, and a first protrusion matched with the first positioning groove is arranged at the bottom of a supporting component of the welding strip pressing device; or,

the boss is provided with at least one second bulge, and the bottom of the supporting component of the welding strip pressing device is provided with a second positioning groove matched with the second bulge;

the positioning part is a strip-shaped boss arranged along the side edge of the middle conveying part, the surface of the boss is a rough surface, the rough surface is used for bearing a supporting component of the welding strip pressing device, or a magnet is arranged below the boss, and the supporting component of the welding strip pressing device comprises a component made of a magnetic attraction material;

the positioning part is provided with at least one positioning groove or through hole, and the positioning groove or the through hole is used for accommodating and positioning a supporting component of the welding strip pressing device;

or,

the positioning part is provided with at least one adsorption hole which is used for adsorbing a supporting component of the welding strip pressing device;

the positioning part and the middle conveying part are connected into a whole to form the conveying belt, or the positioning part is a steel belt independent of the middle conveying part, and the steel belt and the middle conveying part synchronously rotate and convey.

2. A conveyor comprising a power plant, rollers, and a conveyor belt as in claim 1 wherein:

the conveying belt is sleeved on the roller, and the power device can drive the roller to rotate;

and when the rollers rotate, the conveying belt conveys the battery pieces, the welding strips and the welding strip pressing device which are placed on the conveying belt.

3. The conveying device according to claim 2, wherein the positioning portion is provided with an adsorption hole, the conveying device further comprising a vacuum-pumping device, wherein:

the vacuumizing device is arranged below the conveying belt;

and when the vacuumizing device vacuumizes, the welding belt compacting device is adsorbed on the conveying belt through the adsorption hole.

4. A delivery device according to claim 3, wherein:

a plurality of adsorption holes are formed in the middle conveying part of the conveying belt;

and when the vacuumizing device vacuumizes, the battery pieces on the conveying belt are adsorbed on the conveying belt through the adsorption holes on the middle conveying part.

5. A stringer, characterized in that it comprises a conveyor according to any of claims 2 to 4;

the series welding machine further comprises a battery piece feeding device, a welding strip feeding device and a welding device; the feeding device is used for providing the battery piece for the conveying device, the feeding device is used for providing the welding strip for the conveying device, the battery piece and the welding strip are stacked together according to a preset sequence by the feeding device and the feeding device, the conveying device is used for conveying the stacked battery piece and welding strip to the welding device, and the welding device welds the stacked battery piece and welding strip into a battery string.