CN216698402U - Adhesive welding strip equipment for solar cell and production system for solar module - Google Patents

Abstract

The application provides sticky solder strip equipment of solar wafer and solar module's production system relates to solar cell's generation technical field. The adhesive welding strip device comprises a support, a bottom plate and a curing device for curing adhesive dots. The bottom plate is fixed in the support, and the surface of bottom plate is provided with the depressed area that is used for dodging the first surface rubberizing point of battery piece. The curing device is directly or/indirectly fixed to the stent. In this equipment, because be provided with the depressed area on the bottom plate, when the battery piece that will be provided with gluey point sets up on the bottom plate, glue the point and just place in the depressed area, make glue the point can not contact with the bottom plate, then solidify gluey point through solidification equipment, before avoiding gluing the point solidification, with other equipment contact, can avoid gluing the point and stain, make the quality of battery cluster higher, also can avoid polluting the equipment.

Description

Adhesive welding strip equipment for solar cell and production system for solar module

Technical Field

The application relates to the technical field of generation of solar cells, in particular to an adhesive welding strip device of a solar cell piece and a production system of a solar assembly.

Background

The solar module is generally formed by connecting and packaging a plurality of solar cells in series. The solar cell string is generally formed by welding a plurality of solar cells by solder ribbons. At present, the process engineering for manufacturing the solar cell string is roughly as follows: arranging the solder strips on the solar cell pieces according to a preset interval, transmitting the solar cell pieces on which the solder strips are arranged to a welding station, and welding the solder strips to the main gate electrodes on the surfaces of the solar cell pieces.

However, there is a new way to fix the solder strip in the prior art, i.e. glue the solder strip, although the welding process can be omitted; however, the method of adhesively fixing the solder strip is difficult to be applied industrially.

SUMMERY OF THE UTILITY MODEL

The inventor researches and discovers that the reason why the mode of adhesively fixing the welding strip cannot be applied to the industrialization is that: the glue is in a viscous state before being cured, the appearance of the glue is changed after the glue is contacted with other hardware mechanisms, the hardware mechanisms are polluted by the glue, and the preparation quality of the battery string is influenced.

An object of this application is to provide an sticky tape welding equipment of solar wafer and solar module's production system, avoids the solidification to glue the in-process of some, and the some appears to stain and equipment is polluted.

First aspect, this application embodiment provides a sticky tape welding equipment of solar wafer for through sticky will weld area and battery piece connection, a plurality of glue points and many solder strips have all been laid to two surfaces of battery piece, are provided with a plurality of glue points on every solder strip. The adhesive welding strip device comprises a support, a bottom plate and a curing device for curing adhesive dots. The bottom plate is fixed in the support, and the surface of bottom plate is provided with the depressed area that is used for dodging the first surface rubberizing point of battery piece. The curing device is directly or/indirectly fixed to the stent.

In this equipment, because be provided with the depressed area on the bottom plate, when the battery piece that will be provided with gluey point sets up on the bottom plate, glue the point and just place in the depressed area, make glue the point can not contact with the bottom plate, then solidify gluey point through solidification equipment, before avoiding gluing the point solidification, with other equipment contact, can avoid gluing the point and stain, make the quality of battery cluster higher, also can avoid polluting the equipment.

In an optional embodiment of the present application, in combination with the first aspect, the recessed area is a plurality of avoiding holes, and the plurality of avoiding holes are used to correspond to the plurality of glue dots on the first surface one to one. Wherein, dodge the hole and can be the through-hole, also can be the blind hole, and it is with gluing some entering into dodge the hole, can not touch the diapire of pore wall or blind hole as the standard to avoid gluing some contamination and equipment pollution.

In combination with the first aspect, in an optional embodiment of the present application, the recessed area is a plurality of avoidance through grooves, and the plurality of avoidance through grooves are used for corresponding to one row of glue dots. Avoiding the through grooves is more convenient, and the glue spots can be prevented from being stained.

With reference to the first aspect, in an optional embodiment of the present application, the curing device is a heating device, and the heating device is disposed in the bottom plate and is used for heating and curing glue spots of the battery piece on the bottom plate. The heating device is arranged in the bottom plate, so that heating and curing can be realized, the curing mode is simple, and the equipment integration degree is higher.

With reference to the first aspect, in an optional embodiment of the present application, the curing device is a UV device, and the UV device is disposed on the bracket and is used for performing UV curing on glue spots of the battery piece on the bottom plate.

With reference to the first aspect, in an optional embodiment of the present application, the recessed area is a plurality of avoidance through grooves; the sticky solder strip equipment further comprises a conveying belt, the conveying belt is laid on the bottom plate, a plurality of through hole areas used for avoiding glue spots on the first surface of the battery piece are arranged on the conveying belt, the through hole areas correspond to the avoiding through grooves, and the extending direction of the avoiding through grooves is consistent with the conveying direction of the conveying belt.

Through the setting of conveyer belt, can realize the serialization production of sticky solder strip technology, the through-hole region with dodge the setting in logical groove, can make the glue point neither contact with the conveyer belt, also with the bottom plate contact, avoid gluing the point and staiing. In the serialization production process, the depressed area uses the mode of dodging logical groove, and the direction of delivery of bearing the battery piece on the conveyer belt is unanimous with the extending direction who dodges logical groove, avoids gluing the point and stains.

In combination with the first aspect, in an optional embodiment of the present application, the through hole area is a plurality of through holes, each avoiding through groove corresponds to the plurality of through holes, and one through hole corresponds to avoiding one or more glue dots. The avoiding effect of the glue dots is better, and the glue dots can not be contacted with the conveying belt or the bottom plate.

In combination with the first aspect, in an optional embodiment of the present application, a plurality of first negative pressure holes are provided on the conveyor belt, a plurality of second negative pressure holes corresponding to the first negative pressure holes are provided on the bottom plate, and the first negative pressure holes are used for being arranged in a staggered manner with glue dots of the battery piece, so as to adsorb the battery piece by means of the first negative pressure holes and the second negative pressure holes.

Through the setting in negative pressure hole, can adsorb the battery piece negative pressure and fix on the conveyer belt, avoid the in-process that the conveyer belt was carried, because the removal of battery piece and come out the problem that the glue point stains.

In combination with the first aspect, in an optional embodiment of the present application, the adhesive tape welding equipment further includes a negative pressure plate, the negative pressure plate is disposed below the bottom plate, a cavity is formed inside the negative pressure plate, the cavity is communicated with each of the second negative pressure holes, and a negative pressure port, which is communicated with the cavity and used for connecting a negative pressure device, is further formed in the negative pressure plate.

The negative pressure plate can be arranged to pump negative pressure from a plurality of negative pressure holes on the bottom plate through the same negative pressure device, so that the structure of the equipment is simpler.

In an alternative embodiment of the present application in combination with the first aspect, the negative pressure plate is tightly and hermetically connected with the bottom plate through a fixing member. The intensity of equipment is higher, and it is more convenient to prepare, and the operation is also simpler.

With reference to the first aspect, in an alternative embodiment of the present application, the conveyor belt is an electrostatic adsorption conveyor belt. The battery piece can be fixed in a negative pressure adsorption mode.

With reference to the first aspect, in an optional embodiment of the application, the adhesive tape welding equipment further includes a pressing block, and an avoiding region for avoiding a glue applying point on a second surface of the battery piece is arranged on the pressing block; the pressing block is movably arranged on the conveying belt and used for enabling the welding belt at the glue point to be in contact with the battery piece.

Through the arrangement of the pressing block, on one hand, the welding strip can be pressed, and the welding strip is prevented from deviating relative to the battery piece; on the other hand, according to pressing down of pressing down the piece, can make to weld the area and enter into and glue some inside, with the fine contact of battery piece under the gluey point, make to weld the area better with the grid line contact effect of battery piece, weld the sticky effect in area better.

With reference to the first aspect, in an optional embodiment of the present application, the pressing block includes a pressing body and a plurality of elastic pressing portions disposed on the pressing body for pressing the solder strip, and an avoidance area is formed between the elastic pressing portions.

The elasticity presses the setting of splenium, can form certain cushion force at the in-process of pressing, when pressing the battery piece, avoids the battery piece to receive too big power. Meanwhile, the elastic pressing parts are arranged in the avoidance area, so that the pressing parts can be pressed at the welding strip positions beside the glue points, and the welding strip enters the inside of the glue points to be in contact with the battery piece.

With reference to the first aspect, in an optional embodiment of the present application, the elastic pressing portion includes an elastic member and a pressing column, a plurality of pressing holes are provided in the pressing body, the elastic member is disposed in the pressing holes, one end of the elastic member is fixed to the pressing body, and the other end of the elastic member is connected to the pressing column, so that one end of the pressing column, which is close to the elastic member, can move in the pressing holes.

Through the cooperation of pressing post and elastic component, can make and press the post and move along the axis direction of pressing the hole to make and press the post and comparatively unanimous to the direction of the force that the battery piece provided, the pressing force is more even.

With reference to the first aspect, in an optional embodiment of the present application, a first magnetic member is disposed on the pressing body, and a second magnetic member corresponding to the first magnetic member is disposed on the bottom plate.

Through the cooperation of first magnetism spare and second magnetism spare, can increase and press the frictional force between briquetting and the conveyer belt, prevent the in-process of conveyer belt transmission, take the off-normal strip that welds.

With reference to the first aspect, in an alternative embodiment of the present application, the pressing body is fixed to the bracket by a lifting device, and the pressing body is located above the conveyor belt.

After the battery piece is placed, the lifting device controls the pressing main body to descend, so that the elastic pressing part presses the welding strip beside the glue point; then the lifting device controls the pressing main body to ascend, and then a battery piece is pressed down.

In combination with the first aspect, in an optional embodiment of the present application, the adhesive welding strip device further includes a photographing positioning device, and the photographing positioning device is disposed on the support, and is used for enabling the adhesive dots on the first surface of the battery piece to enter the recessed area, and detecting whether the conveying belt deviates.

The setting of the photographing positioning device can clearly observe the depressed areas on the bottom plate and the through hole areas on the conveying belt, so that the battery piece can be accurately placed at the corresponding position, and the glue points on the battery piece are avoided. Meanwhile, whether the conveying belt deviates or not can be detected so as to correct the conveying direction of the conveying belt.

With reference to the first aspect, in an optional embodiment of the present application, the photographing positioning device is disposed above the conveyor belt, and the photographing positioning device is located at a head portion or/and a tail portion of the conveyor belt.

The avoiding effect of the glue dots and the concave area or/and the through hole area at the avoiding position can be better, so that the contamination of the glue dots is avoided.

In a second aspect, a production system of a solar module is provided, which comprises the adhesive welding tape device of the solar cell piece of the first aspect.

The gluing effect of the solder strip can be better, and the glue dots and equipment are prevented from being polluted in the production process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic view of a prior art solder ribbon connection;

FIG. 2 is a schematic view of a first structure of a tape welding apparatus according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of a manner of adhesive welding strips of a battery piece provided by an embodiment of the application;

fig. 4 is a schematic view of a first structure of a base plate according to an embodiment of the present disclosure;

FIG. 5 is a first cross-sectional view of a base plate provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a conveying belt provided in an embodiment of the present application;

fig. 7 is a schematic structural diagram of a pressing block according to an embodiment of the present application;

FIG. 8 is a cross-sectional view of a press block provided in an embodiment of the present application;

FIG. 9 is a second schematic structural diagram of a tape welding apparatus according to an embodiment of the present disclosure;

fig. 10 is a second structural schematic diagram of a base plate according to an embodiment of the present application;

FIG. 11 is a second cross-sectional view of a base plate provided in accordance with an embodiment of the present application;

FIG. 12 is a schematic diagram of a third structure of a base plate according to an embodiment of the present application;

fig. 13 is a third cross-sectional view of a base plate provided in an embodiment of the present application.

Icon: 10-a battery piece; 11-a gate line; 12-pad point; 13-welding a strip; 110-a scaffold; 120-a backplane; 130-a curing device; 121-a recessed region; 1211-avoiding hole; 1212-avoiding the through groove; 140-pressing block; 141-an avoidance zone; 142-a pressing body; 143-an elastic pressing part; 144-an elastic member; 145-pressing column; 146-a press hole; 131-a UV device; 150-a conveyor belt; 151-via region; 1511-through hole; 152-a first negative pressure port; 122-a second negative pressure port; 160-a negative pressure plate; 161-a cavity; 162-negative pressure port.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present application more clearly, and therefore are only used as examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description of the present application and in the description of the above figures, are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two sets), "plural pieces" refers to two or more (including two pieces).

In the description of the embodiments of the present application, the terms "middle", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "bottom", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the embodiments of the present application and to simplify the description, but do not indicate or imply that the designated device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "connected" and "fixed" are used in a broad sense, e.g., they may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Fig. 1 is a schematic view of a prior art solder ribbon 13 connection. Referring to fig. 1, the solder strip 13 is usually connected to the grid lines 11 on the battery plate 10 by welding, since the grid lines 11 are thin, if only the grid lines 11 are welded to the solder strip 13, the welding is not firm, and therefore, pad points 12 (connection points) are usually arranged at intervals on the grid lines 11, and during the welding of the solder strip 13, the welding to the pad points 12 is firm, so that the solder strip 13 can be firmly welded to the battery plate 10, so as to connect a plurality of battery plates 10 in series.

In order to make the solder strip 13 stronger, the pad dots 12 are larger, and the material of the pad dots 12 is generally the same as that of the grid lines 11, such as: silver paste uses more materials, resulting in increased cost. Meanwhile, the light-tight spot 12 reduces the light-receiving surface of the solar cell 10, and the conversion efficiency is also affected.

Therefore, a new way of fixing the solder strip 13 is created, i.e. the way of adhesively fixing the solder strip 13, by means of the adhesive arrangement, the pad dots 12 can be reduced or even eliminated, and at the same time, the adhesive dots generally have a certain light transmittance, and the light receiving surface of the battery piece 10 will increase to a certain extent. However, the inventors have found that the method of adhesively fixing the solder ribbon 13 causes a new problem and cannot be applied industrially, specifically because: the glue is in a viscous state before being cured, the appearance of the glue is changed after the glue is contacted with other hardware mechanisms, the hardware mechanisms are polluted by the glue, and the preparation quality of the battery string is influenced.

Therefore, this application has carried out further improvement to equipment to can avoid to a certain extent gluing the stain of point, and the pollution of equipment. In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

The application provides a solar energy component's production system, including some adhesive equipment, battery piece transfer apparatus and sticky solder strip equipment.

Before the welding strip 13 is fixed in an adhesive manner, a plurality of adhesive dots are dispensed on the corresponding positions of the battery piece 10 through the dispensing equipment, so that a plurality of adhesive dots are laid on both surfaces of the battery piece 10. In this application, the glue dot can be conductive adhesive or non-conductive adhesive, and after curing, the connection between the gate line 11 and the solder strip 13 can be realized. Meanwhile, during dispensing, the two surfaces of the battery piece 10 can be firstly dispensed, and then the solder strips are connected; or dispensing glue on one surface of the battery piece 10 and connecting the solder strips; dispensing glue on the other surface of the battery piece 10 and connecting the solder strips; the present application is not limited.

Will weld and take 13 to arrange in sticky corresponding position who welds and take equipment, then use battery piece transfer equipment to shift battery piece 10 to sticky welding and take equipment on, make to weld and take 13 to set up on the glue point of battery piece 10, make two surfaces of battery piece 10 all laid a plurality of glue points and many and weld and take 13, every welds and is provided with a plurality of glue points on taking 13. The solder strip 13 is then secured by means of a glue solder strip device.

The point gluing equipment and the battery piece transferring equipment are not specifically improved in the application, and the point gluing equipment and the battery piece transferring equipment are mainly improved. This is described in detail below:

the first type of adhesive welding strip equipment is continuous production equipment.

FIG. 2 is a schematic view of a first structure of a tape welding apparatus according to an embodiment of the present disclosure; fig. 3 is a schematic diagram of a manner of adhesive welding strips of a battery piece according to an embodiment of the present application. Referring to fig. 2 and 3, the adhesive welding equipment includes a frame 110, a base plate 120 for supporting a conveyor belt 150, the conveyor belt 150 for conveying the battery pieces 10, and a curing device 130 for curing adhesive dots.

Fig. 4 is a schematic diagram of a first structure of a base plate 120 according to an embodiment of the present disclosure; fig. 5 is a first cross-sectional view of a base plate 120 provided in an embodiment of the present application; fig. 6 is a schematic structural diagram of a conveyor belt 150 according to an embodiment of the present application. Referring to fig. 2 to 6, the base plate 120 is fixed to the support 110, and a plurality of avoiding through grooves 1212 for avoiding glue spots on the first surface of the battery piece 10 are disposed on the surface of the base plate 120. The conveying belt 150 is laid on the bottom plate 120, the conveying belt 150 is provided with a plurality of through hole areas 151 used for avoiding glue applying points on the first surface of the battery piece 10, the through hole areas 151 correspond to the avoiding through grooves 1212, and the extending direction of the avoiding through grooves 1212 is consistent with the conveying direction of the conveying belt 150. Curing device 130 is disposed within base plate 120.

Through the setting of conveyer belt 150, can realize the serialization production of sticky solder strip technology, through-hole region 151 and dodge the setting of leading to the groove 1212, can make glue the point neither contact with conveyer belt 150, also with bottom plate 120 contact, avoid gluing the point and stain. In the continuous production process, the recessed area 121 is used for avoiding the through groove 1212, and the conveying direction of the battery piece 10 borne on the conveying belt 150 is consistent with the extending direction of the avoiding through groove 1212, so that the contamination of glue spots is avoided.

The equipment improvement in the present application can be an improvement on existing MBB process equipment, and the improvement is very simple. Of course, it may be modified at the welding equipment of the ordinary battery sheet 10 production equipment, and it may also be operated. The following is an example of the improvement in the MBB process:

in the MBB process, taking the conveyor belt 150 as an example of conveying from right to left, the welding strip 13 clamping jaw lays the first welding strip 13 on the conveyor belt 150, then the battery piece 10 with glue dots is placed at the left end of the first welding strip 13 through the battery piece transferring equipment, then the second welding strip 13 is laid at the upper end of the battery piece 10 through the welding strip 13 clamping jaw, and the right end of the second welding strip 13 is located on the upper surface of the battery piece 10; the left end of the second welding strip 13 is laid on the conveying belt 150; and then the stepping motor enables the conveyer belt 150 to convey for a preset distance, and the next battery piece 10 is laid at the left end of the second welding belt 13, and so on.

Meanwhile, when the first welding strip 13 and the second welding strip 13 are laid on the upper conveying belt 150, the first welding strip 13 and the second welding strip 13 are both correspondingly arranged in the through hole area 151, and the through hole area 151 corresponds to the avoiding through groove 1212 of the bottom plate 120 (the avoiding through groove 1212 corresponds to the welding strip 13); when the battery piece 10 is placed, the glue spots on the battery piece 10 are correspondingly placed in the through hole region 151 of the conveyer belt 150 and the avoiding through groove 1212 of the bottom plate 120. Since the belt 150 is thin and the glue dots are large, basically the through hole area 151 of the belt 150 is not enough to completely avoid the glue dots, and if the bottom plate 120 is not provided with the corresponding avoiding through groove 1212, the glue dots may contact the bottom plate 120 and become contaminated. Therefore, in the present application, the glue dots can be avoided from being contaminated and polluting the equipment through the through hole area 151 of the conveyor belt 150 and the avoidance through groove 1212 of the bottom plate 120.

Optionally, the through hole area 151 is a plurality of through holes 1511, each avoiding through groove 1212 corresponds to the plurality of through holes 1511, and one through hole 1511 corresponds to avoiding one or more glue dots. The avoiding effect of the glue dots is better, and the glue dots can not be contacted with the conveying belt 150 and the bottom plate 120; meanwhile, the mode of arranging the through hole 1511 on the conveying belt 150 can prevent the strength of the conveying belt 150 from being damaged to a certain extent.

If one through hole 1511 corresponds to one glue dot, the through holes 1511 are substantially circular or square, and one glue dot is disposed in one through hole 1511; if one through hole 1511 corresponds to a plurality of glue dots, the through hole 1511 is substantially waist-shaped or long-strip-shaped, so that one through hole 1511 can avoid two or more glue dots, and can be specifically set according to actual conditions as long as the glue dots can be avoided.

Referring to fig. 3 to fig. 6, the conveyor belt 150 is provided with a plurality of first negative pressure holes 152 for adsorbing the battery pieces 10, and the bottom plate 120 is provided with a plurality of second negative pressure holes 122 corresponding to the first negative pressure holes 152. Through the setting in negative pressure hole, can adsorb the battery piece 10 negative pressure and fix on conveyer belt 150, avoid the in-process that conveyer belt 150 carried, come out because the removal of battery piece 10 and glue the problem that the point stains.

With continued reference to fig. 5, the adhesive tape welding apparatus further includes a negative pressure plate 160 for forming a negative pressure therein, the negative pressure plate 160 is disposed below the bottom plate 120, the negative pressure plate 160 has a cavity 161 therein, the cavity 161 is communicated with each second negative pressure hole 122, the negative pressure plate 160 further has a negative pressure port 162 for connecting a negative pressure device, and the negative pressure port 162 is communicated with the cavity 161. The negative pressure port 162 is connected with a negative pressure device, so that negative pressure can be pumped 161 to the cavity, and the second negative pressure hole 122 and the first negative pressure hole 152 are in a negative pressure state, so as to perform negative pressure adsorption on the battery piece 10. The arrangement of the negative pressure plate 160 can perform negative pressure pumping to a plurality of negative pressure holes on the bottom plate 120 through one negative pressure device, so that the structure of the device can be simpler.

Alternatively, the negative pressure plate 160 and the base plate 120 are fastened and hermetically connected by a fixing member (e.g., a screw), so that the hermetic connection between the negative pressure plate 160 and the base plate 120 can be realized and the manufacturing cost is low.

In other embodiments, the suction plate 160 is integrally formed with the base plate 120. The intensity of equipment is higher, and the operation is also simpler.

Alternatively, the number of the first vacuum holes 152 may be substantially the same as the number of the second vacuum holes 122, but slight differences are within the scope of the present application. It is within the scope of the present application that only a portion of the first negative pressure holes 152 and the second negative pressure holes 122 can correspond to each other and perform negative pressure adsorption on the battery piece 10. The number, size and shape of the first negative pressure holes 152 and the second negative pressure holes 122 are not limited as long as the battery sheet 10 can be sucked under negative pressure.

With continued reference to fig. 6, the second negative pressure hole 122 is a substantially circular hole; in other embodiments, the second negative pressure hole 122 may also be a substantially elongated hole structure, and the application is not limited as long as the negative pressure can be achieved.

In other embodiments, the conveyor belt 150 is an electrostatic adsorption conveyor belt 150. The cell pieces 10 may be fixed by means of electrostatic attraction.

With reference to fig. 2, the adhesive tape welding apparatus further includes a pressing block 140, wherein the pressing block 140 is provided with an avoiding region 141 for avoiding the glue applying point on the second surface of the battery piece 10; the pressing block 140 is movably disposed on the conveying belt 150 for contacting the solder strips 13 at the glue sites with the battery pieces 10.

Through the arrangement of the pressing block 140, on one hand, the welding strip 13 can be pressed, and the welding strip 13 is prevented from deviating relative to the battery piece 10; on the other hand, the pressing block 140 can make the solder strip 13 enter the inside of the glue spot and well contact with the battery piece 10 under the glue spot, so that the contact effect between the solder strip 13 and the grid line 11 of the battery piece 10 is better, and the gluing effect of the solder strip 13 is better.

Of course, in the present application, the pressing block 140 may not be provided, and after the glue dots are cured, the solder strips 13 and the gate lines 11 are connected by the glue dots; in the subsequent lamination process, because the lamination temperature is 130-150 ℃, the solder strip can be further alloyed, and the electrical connection between the grid line 11 and the solder strip 13 is realized; or the solder strip 13 enters the glue spot to contact the battery piece 10, so as to realize the electrical connection between the grid line 11 and the solder strip 13.

Fig. 7 is a schematic structural diagram of a pressing block 140 according to an embodiment of the present disclosure; fig. 8 is a cross-sectional view of a pressing block 140 according to an embodiment of the present disclosure. Referring to fig. 2, 7 and 8, the pressing block 140 includes a pressing body 142 and a plurality of elastic pressing portions 143 disposed on the pressing body 142 for pressing the solder ribbon 13, and a relief area 141 is formed between the elastic pressing portions 143.

The elastic pressing portion 143 can provide a certain buffering force during the pressing process, so that the battery piece 10 is pressed while the battery piece 10 is prevented from being subjected to an excessive force. Meanwhile, an escape area 141 is arranged between the elastic pressing parts 143, so that the elastic pressing parts 143 can press the welding strips 13 beside the glue spots, and the welding strips 13 enter the glue spots and are in contact with the battery piece 10.

In one embodiment, the pressing body 142 may have a frame structure, which may make the pressing body 142 lighter in weight, reduce the use of materials, and also may enable the installation of the elastic pressing portion 143.

In one embodiment, the pressing body 142 of the pressing block 140 is fixed to the bracket 110 by a lifting device (not shown), and the pressing body 142 is located above the conveyor belt 150. After the battery piece 10 is placed, the lifting device controls the pressing body 142 to descend, so that the elastic pressing part 143 presses the welding strip 13 beside the glue point; then the lifting device controls the pressing body 142 to ascend, then the stepping motor controls the conveyer belt 150 to convey for a preset distance, and places the next battery piece, and the lifting device controls the pressing body 142 to descend again to press the next battery piece.

Referring to fig. 8, the elastic pressing portion 143 includes an elastic element 144 and a pressing post 145, a plurality of pressing holes 146 are disposed in the pressing body 142, the elastic element 144 is disposed in the pressing holes 146, and one end of the elastic element 144 is fixed to the pressing body 142 and the other end is connected to the pressing post 145, so that one end of the pressing post 145 close to the elastic element 144 can move in the pressing hole 146. Through the cooperation of the pressing column 145 and the elastic member 144, the pressing column 145 can move along the axial direction of the pressing hole 146, so that the direction of the force provided by the pressing column 145 to the battery piece 10 is more consistent, and the pressing force is more uniform.

In the embodiment of the present application, the pressing body 142 is provided with a first magnetic member (not shown), and the bottom plate 120 is provided with a second magnetic member (not shown) corresponding to the first magnetic member. Through the cooperation of first magnetic part and second magnetic part, can increase the frictional force between according to briquetting 140 and the conveyer belt 150, prevent that conveyer belt 150 from transmitting the in-process, according to briquetting 140 off tracking.

The first magnetic member may be disposed on the use surface of the pressing body 142 (i.e., the surface that contacts the second surface of the battery cell 10 during use), or may be disposed inside the pressing body 142; the second magnetic member may be disposed on the upper surface of the base plate 120 (i.e., the surface contacting the first surface of the battery cell 10 when in use), or may be disposed inside the base plate 120, which is not limited in this application, and it is within the scope of this application as long as the magnetic connection between the pressing body 142 and the base plate 120 can be achieved.

In this application embodiment, first magnetic part and second magnetic part can be a plurality ofly, and first magnetic part is located the width direction's of bottom plate 120 both sides respectively, and the second magnetic part is located the length direction's that presses main part 142 both sides respectively, when will pressing main part 142 and arrange bottom plate 120 in and press battery piece 10, first magnetic part and second magnetic part magnetism are connected, and the glue point on the battery piece 10 is located the space of pressing main part 142, or presses the clearance department between the post 145 to avoid the contamination of glue point and the pollution of equipment.

Alternatively, the first magnetic member may be a magnet, and the second magnetic member may be a metal block; or the second magnetic part is a magnet, and the first magnetic part is a metal block. The materials of both are not limited as long as the magnetic connection can be achieved.

In this embodiment, the curing device 130 is a heating device, and a plurality of heating devices may be disposed in the bottom plate 120 at intervals side by side, and the bottom plate is provided with a preheating zone, a curing zone and a cooling zone, wherein the heating temperature of the heating device at the preheating zone is low, so as to prevent the adhesive dots from curing while the battery pieces 10 are placed, so as to arrange the solder strips on the adhesive dots; the heating temperature of the heating device at the curing area is higher, so that the glue dots are cured at the heating temperature; the heating temperature of the heating device at the cooling zone is low so as to gradually cool the battery sheet 10 and avoid quenching the battery sheet.

In other embodiments, a plurality of bottom plates 120 may be disposed at the lower end of the conveyor belt 150, and a heating device is disposed in each bottom plate 120. The plurality of plates 120 sequentially constitute a preheating zone, a curing zone, and a cooling zone to cure the paste dots.

In this application, the adhesive welding strip device further includes a photographing positioning device (not shown), which is disposed on the support 110, and is used for making the adhesive dots on the first surface of the battery piece 10 enter the recessed area 121, and for detecting whether the conveying belt 150 deviates. The setting of the positioning device that shoots can carry out clear observation to the through hole area 151 on the depressed area 121 and the conveyer belt 150 on the bottom plate 120 to the battery piece 10 can be accurately placed at corresponding position, and the glue point on the battery piece 10 is dodged. Meanwhile, whether the conveyor belt 150 is deviated or not may be detected so as to correct the conveying direction of the conveyor belt 150.

Optionally, the photographing positioning device is disposed above the conveying belt 150, and the photographing positioning device is located at the head and/or the tail of the conveying belt 150. The avoiding effect of the glue dots and the concave area 121 or/and the through hole area 151 at the avoiding position can be better, so that the contamination of the glue dots is avoided.

The adhesive welding strip equipment provided by the embodiment of the application has the following working principle:

the glue is firstly dispensed on the first surface and the second surface of the battery piece 10 by a glue dispensing device. Laying a first welding strip 13 through a clamping jaw of the welding strip 13, laying the first welding strip 13 on a corresponding through hole area 151 on a conveying belt 150, firstly using a photographing positioning device to place a battery piece 10 with glue points on the left end of the first welding strip 13 through a battery piece transfer device, enabling the glue points on the first surface of the battery piece 10 to enter the through hole area 151 of the conveying belt 150, then laying a second welding strip 13 on the upper end of the battery piece 10 through the clamping jaw of the welding strip 13, and positioning the right end of the second welding strip 13 on the upper surface of the battery piece 10; the left end of the second solder strip 13 is laid on the conveyor belt 150.

Then, the pressing block 140 is transferred to the second surface of the battery piece 10, the glue points on the second surface of the battery piece 10 are aligned between the elastic pressing portions 143, the pressing body 142 is made to face downward, and the pressing posts 145 of the pressing block 140 press the battery piece 10 and the solder ribbons 13, so that the solder ribbons 13 are in contact with the grid lines 11.

Then step motor makes conveyer belt 150 carry the preset distance, lays and lays next battery piece 10 at the left end of second solder strip 13, simultaneously, solidifies through heating device to the glue point of last battery piece, realizes the sticky fixed of solder strip 13, analogizes in proper order. One cell 10 may be placed and cured at a time, or a plurality of cells may be placed and cured to obtain a battery string. The fixing mode can avoid the contamination of glue spots and equipment pollution.

The second type of adhesive welding strip equipment is discontinuous production equipment:

FIG. 9 is a second schematic structural diagram of a tape welding apparatus according to an embodiment of the present disclosure; referring to fig. 9, the adhesive tape welding apparatus includes a frame 110, a base plate 120, and a curing device 130 for curing the adhesive dots.

Fig. 10 is a second structural diagram of the base plate 120 according to the embodiment of the present application; fig. 11 is a second cross-sectional view of a base plate 120 provided in an embodiment of the present application; fig. 12 is a schematic diagram of a third structure of a base plate 120 according to an embodiment of the present application; fig. 13 is a third cross-sectional view of a base plate 120 according to an embodiment of the present application. Referring to fig. 10-13, the bottom plate 120 is fixed to the support 110, and the surface of the bottom plate 120 is provided with a recessed area 121 for avoiding glue spots on the first surface of the battery piece 10. The curing device 130 is directly or/indirectly secured to the support 110.

In this equipment, because be provided with the depressed area 121 on the bottom plate 120, when the battery piece 10 that will be provided with the point of gluing sets up on bottom plate 120, glue the point and just place in depressed area 121, make glue the point and can not contact with bottom plate 120, then solidify the point of gluing through solidification equipment 130, before avoiding gluing the point solidification, contact with other equipment, can avoid gluing the point and stain, make the quality of battery cluster higher, also can avoid polluting the equipment.

Referring to fig. 10 and 11, the recessed area 121 is a plurality of avoiding holes 1211, and the avoiding holes 1211 are used for corresponding to the glue dots on the first surface one by one. The avoiding hole 1211 may be a through hole (shown in fig. 11 as a through hole) or a blind hole (not shown), and the avoiding hole 1211 is defined such that the glue dot enters the avoiding hole 1211 without touching the hole wall, thereby preventing the glue dot from being contaminated and preventing the equipment from being contaminated.

Alternatively, the size and shape of the avoidance hole 1211 are not limited as long as the glue dot can be avoided. One avoidance hole 1211 can be correspondingly provided with one glue dot, and one avoidance hole 1211 can be correspondingly provided with a plurality of glue dots, which is not limited in the application.

Referring to fig. 12 and 13, the recessed area 121 is a plurality of avoiding through slots 1212, the avoiding through slots 1212 penetrate through two ends of the bottom plate 120, and the avoiding through slots 1212 are used for corresponding to a row of glue dots. Avoiding the through groove 1212 is more convenient and can avoid the contamination of glue spots. The width and depth of the avoiding through groove 1212 are not limited as long as the glue dots can be avoided.

With continued reference to fig. 9, the adhesive tape welding apparatus further includes a pressing block 140, wherein the pressing block 140 is provided with an avoiding region 141 for avoiding the glue applying point on the second surface of the battery piece 10; the pressing block 140 is movably disposed on the base plate 120 for contacting the solder strips 13 at the glue sites with the battery cells 10.

After the battery piece 10 is transferred to the bottom plate 120, the glue point on the first surface of the battery piece 10 is correspondingly arranged in the recessed area 121, then the pressing block 140 is used for pressing the second surface of the battery piece 10, the battery piece 10 and the solder strip 13 can be integrally pressed down, so that the solder strip 13 penetrates through the glue point, the solder strip 13 and the grid line 11 can be in direct contact, and after the glue point is solidified, the electrical connection effect between the grid line 11 and the solder strip 13 is better. The specific structure of the pressing block 140 may be identical to that of the pressing block 140 in the first adhesive welding tape device, and will not be described herein again. Referring to fig. 9, the curing device 130 of the present application may be a UV device 131, and the UV device 131 is disposed on the bracket 110 and is used for UV curing the glue dots of the battery cells 10 on the base plate 120.

In other embodiments, the curing device 130 may also be a heating device (not shown) disposed in the base plate 120 for heating and curing the glue dots of the battery pieces 10 on the base plate 120. The heating device is arranged in the bottom plate 120, so that heating and curing can be realized, the curing mode is simple, and the equipment integration degree is higher. Meanwhile, the diameter of the solder strip 13 is generally 0.2-0.35mm, the solder strip is plated with tin on the surface of a copper wire, the melting point of tin is low, and the tin can be melted when a heating device in the bottom plate 120 heats the solder strip, so that the solder strip 13 and the grid line 11 can be connected in an alloying manner, and the electrical connection effect of the solder strip and the grid line is better. Optionally, the solder strip 13 may be soaked in the flux for subsequent alloying connection.

Optionally, the heating temperature of the heating device is not limited, and may be limited according to the selection of the material of the glue dots; if the heating temperature reaches the melting point of tin, an alloyed connection can be achieved, so that the effect of adhesively connecting the solder strips 13 is better.

In other embodiments, the curing device 130 may further include both a UV device 131 and a heating device, the heating device is disposed in the bottom plate 120, the UV device 131 is disposed in the bracket 110, and the glue dots can be cured by both heating and UV. The curing method is not limited in the present application, and any method capable of curing the glue dots is within the scope of the present application.

When the battery piece 10 is placed on the bottom plate 120, in order to place the glue dots on the battery piece 10 in the avoidance holes 1211 or the avoidance through grooves 1212 on the bottom plate 120, the adhesive welding tape device further includes a photographing positioning device (not shown) disposed on the support 110 for allowing the glue dots on the first surface of the battery piece 10 to enter the recessed area 121. The arrangement of the photographing positioning device (for example, a CCD device) can clearly observe the recessed area 121 on the bottom plate 120, so that the battery piece 10 can be accurately placed at the corresponding position to avoid the glue spot on the battery piece 10.

Optionally, the photographing positioning devices are disposed above the bottom plate 120 and located at two ends of the bottom plate 120 in the length direction, so that the glue dots of the battery pieces 10 placed on the bottom plate 120 can enter the recessed area 121.

The adhesive welding strip equipment provided by the embodiment of the application has the following working principle: firstly, a photographing positioning device is used for placing a first welding strip on the bottom plate 120, the battery piece 10 with the glue points is transferred onto the bottom plate 120, meanwhile, the glue points on the first surface of the battery piece 10 enter the avoidance hole 1211 or the avoidance through groove 1212 of the bottom plate 120, and the glue points on the first surface of the battery piece 10 are in contact with the left end of the first welding strip; then, a second welding strip is laid on the second surface of the cell 10, and the right end of the second welding strip (the left end of the second welding strip is used for placing the next cell) is in contact with the adhesive point on the second surface of the cell.

The pressing blocks 140 are transferred to the second surface of the battery piece 10, the glue points on the second surface of the battery piece 10 are aligned between the elastic pressing portions 143, the pressing body 142 is made to face downward, and the pressing posts 145 of the pressing blocks 140 press the battery piece 10 and the solder strips 13, so that the solder strips 13 are in contact with the grid lines 11. Then, the heating device or UV device 131 is operated to cure the adhesive dots, thereby achieving adhesive fixation of the solder ribbon 13. The fixing mode can avoid the contamination of glue spots and equipment pollution.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (17)

1. The device for adhering the welding strips of the solar cell is characterized in that the device is used for connecting the welding strips with the cell through adhesion, a plurality of glue points and a plurality of welding strips are laid on two surfaces of the cell, and each welding strip is provided with a plurality of glue points; the adhesive welding tape device comprises:

a support frame is arranged on the base plate,

the bottom plate is fixed on the support, and a concave area for avoiding a glue applying point on the first surface of the battery piece is arranged on the surface of the bottom plate;

and the curing device is used for curing the glue dots and is directly or/and indirectly fixed on the bracket.

2. The adhesive welding strip device according to claim 1, wherein the recessed area is a plurality of avoiding holes, and the avoiding holes are used for corresponding to the glue dots on the first surface one by one;

or the depressed area is a plurality of avoiding through grooves, and the avoiding through grooves are used for corresponding to the glue points in one row.

3. The adhesive welding tape device according to claim 1, wherein the curing device is a heating device, and the heating device is arranged in the base plate and is used for heating and curing the glue points of the battery pieces on the base plate;

or/and the curing device is a UV device which is arranged on the bracket and used for carrying out UV curing on the glue points of the battery piece on the bottom plate.

4. The adhesive tape welding apparatus of claim 1, wherein said recessed areas are a plurality of relief channels;

sticky tape welding equipment still includes the conveyer belt, the conveyer belt lay in on the bottom plate, be provided with a plurality of through-hole regions that are used for dodging the first surface rubberizing point of battery piece on the conveyer belt, the through-hole region with dodge and lead to the groove and correspond, just dodge the extending direction who leads to the groove with the direction of delivery of conveyer belt is unanimous.

5. The adhesive tape welding apparatus according to claim 4, wherein said through hole area is a plurality of through holes, each of said avoiding through grooves corresponds to a plurality of said through holes, and one of said through holes corresponds to one or more of said glue dots.

6. The adhesive welding tape device according to claim 4, wherein a plurality of first negative pressure holes are formed in the conveying belt, a plurality of second negative pressure holes corresponding to the first negative pressure holes are formed in the bottom plate, and the first negative pressure holes are used for being arranged in a staggered mode with glue points of the battery piece so as to enable the battery piece to be adsorbed in a negative pressure mode through the first negative pressure holes and the second negative pressure holes.

7. The adhesive welding tape device according to claim 6, further comprising a negative pressure plate disposed below the bottom plate, wherein a cavity is formed inside the negative pressure plate, the cavity is communicated with each of the second negative pressure holes, and a negative pressure port communicated with the cavity and used for connecting a negative pressure device is further formed in the negative pressure plate.

8. The adhesive tape welding apparatus of claim 7, wherein said negative pressure plate is fastened and sealed to said base plate by fasteners.

9. The adhesive welding belt apparatus of claim 4, wherein the conveyor belt is an electrostatic adsorption conveyor belt.

10. The adhesive welding tape device according to any one of claims 4-9, further comprising a pressing block, wherein an avoiding region for avoiding the glue applying point on the second surface of the battery piece is arranged on the pressing block; the pressing block is movably arranged on the conveying belt and used for enabling the welding belt at the glue point to be in contact with the battery piece.

11. The adhesive welding strip device according to claim 10, wherein the pressing block comprises a pressing body and a plurality of elastic pressing portions arranged on the pressing body for pressing the welding strip, and the avoidance areas are arranged between the elastic pressing portions.

12. The adhesive welding strip device according to claim 11, wherein the elastic pressing portion comprises an elastic member and a pressing post, a plurality of pressing holes are formed in the pressing body, the elastic member is disposed in the pressing holes, one end of the elastic member is fixed to the pressing body, the other end of the elastic member is connected to the pressing post, and one end of the pressing post, which is close to the elastic member, can move in the pressing holes.

13. The adhesive welding strip device according to claim 11 or 12, wherein a first magnetic member is arranged on the pressing body, and a second magnetic member corresponding to the first magnetic member is arranged on the bottom plate.

14. The adhesive welding strip device of claim 11 or 12, wherein said pressing body is fixed to said support by a lifting device and is located above said conveyor belt.

15. The adhesive welding strip device according to any one of claims 4 to 9, further comprising a photographing positioning device, wherein the photographing positioning device is arranged on the support and used for enabling the glue dots on the first surface of the battery piece to enter the concave area and detecting whether the conveying belt deviates.

16. The adhesive welding tape device according to claim 15, wherein the camera positioning device is disposed above the conveyor belt, and the camera positioning device is located at the head or/and the tail of the conveyor belt.

17. A solar module production system, characterized by comprising the adhesive bonding tape device for solar cell sheets according to any one of claims 1 to 16.

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