TW201205854A - Solar cell string manufacturing device and manufacturing method, adhesive bonding device and adhesive bonding method - Google Patents

Solar cell string manufacturing device and manufacturing method, adhesive bonding device and adhesive bonding method Download PDF

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Publication number
TW201205854A
TW201205854A TW100122852A TW100122852A TW201205854A TW 201205854 A TW201205854 A TW 201205854A TW 100122852 A TW100122852 A TW 100122852A TW 100122852 A TW100122852 A TW 100122852A TW 201205854 A TW201205854 A TW 201205854A
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TW
Taiwan
Prior art keywords
solar cell
resin adhesive
heating
wiring
unit
Prior art date
Application number
TW100122852A
Other languages
Chinese (zh)
Inventor
Shin Watanabe
Hiroshi Takechi
Kanichiro Matsumoto
Yoshiharu Okita
Shoichi Ban
Yasunobu Ikeda
Original Assignee
Npc Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2010147990A priority Critical patent/JP2012015194A/en
Priority to JP2011009884A priority patent/JP5021080B2/en
Application filed by Npc Inc filed Critical Npc Inc
Publication of TW201205854A publication Critical patent/TW201205854A/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

Disclosed are an adhesive bonding device that places a small load on a solar cell and a solar cell string manufacturing device employing same, and an adhesive bonding method and a solar cell string manufacturing method employing same. An adhesive bonding device (40) comprises an upper face bonding unit (41a) and a lower face bonding unit (41b). The upper face bonding unit (41a) further comprises three supply reels (42a), a half-cut unit (43a), a crimping member (44a), a stripping roller (45a), three recovery reels (46a), and conveyor rollers (471a - 474a). Exactly the same number of resin adhesives (24) with detachable sheets as the number of electrodes (12) of a solar cell (10) is employed to sandwich, pressurize and heat the obverse and reverse sides of the solar cell (10). It is thus possible to simultaneously bond the resin adhesives (22) to all of the electrodes (12), reducing the load on the solar cell (10) and facilitating reduced bonding time for the resin adhesives (22).

Description

201205854 VI. EMBODIMENT OF THE INVENTION: C TECHNICAL FIELD OF THE INVENTION The present invention relates to a solar cell tandem manufacturing apparatus and a manufacturing method for manufacturing a solar cell tandem by connecting a plurality of solar battery cells by a wiring material, and using the solar energy An adhesive attaching device and an adhesive attaching method used in each of the battery tandem manufacturing apparatus and the manufacturing method, and a wiring material pressing device and a wiring material pressing method. BACKGROUND OF THE INVENTION Since the output of each solar cell unit is about several w, a plurality of solar cells connected by solar cells are often arranged in series to cover a glass-sealed solar cell module for use as a solar cell. The solar cell is connected to the light-receiving surface of the solar cell, and the electrode is electrically connected to the back Φ-shaped electrode of the adjacent solar cell. In the meantime, a low-resistance material such as solder copper is used as a wiring material. However, since the linear expansion coefficient of the wiring member is larger than the linear expansion coefficient of the semiconductor substrate used for the solar cell unit, the wiring material connected to the solar cell unit shrinks when it returns to normal temperature, and is in the solar cell unit. (4) Producing pressure. As a result, there is a problem that warpage occurs in the battery unit of too 1%. Therefore, in recent years, this problem has been avoided by using a resin battery at a temperature lower than the melting temperature of the solder (for example, l3 〇 ° C to 180 〇 hardened resin adhesive to follow the solar cell in 201205854. More specifically The solar cell tandem manufacturing apparatus includes an adhesive attaching device and a wiring material pressing device, and a resin adhesive is attached to the electrode of the solar cell in the adhesive attaching device, and thereafter, the wiring material pressing device is attached The wiring material is followed by an electrode to which a resin adhesive is attached. The adhesive attaching device has the following problems. In the solar battery cell, since the electrode is formed on the light receiving surface and the back surface, it is necessary to attach a resin adhesive agent on both surfaces thereof. In a general adhesive attaching apparatus, first, a resin adhesive is attached to the electrode of one surface, and then a resin adhesive is attached to the other electrode. However, when pasting a plurality of times, the sticker is attached. The heat or pressure of the time is applied to the solar cell unit, causing the solar cell unit to be damaged. Also, the time required for attaching In addition, there is a problem that the production capacity of the solar cell series is reduced. In addition, the wiring material pressing device has the following problems. In order to harden the resin adhesive, the wiring material and the electrode of the solar battery cell are pressed, and the non-heating ratio is obtained. The time required for soldering is longer (for example, 15 seconds). Therefore, Patent Document 1 discloses that the time required for the pressing can be shortened by pressing the wiring member against the electrode by the following processes A to D. (Process A) - A thermosetting resin adhesive is placed on the electrode on the light-receiving side of the solar cell, and a wiring material for connecting the adjacent solar cell is placed. A wiring member that connects the other solar cell is disposed on the electrode on the back side of the solar cell.

S 4 201205854 (Self-making B). Next, the resin adhesive is heated to a temperature higher than the softening temperature and lower than the hardening temperature, and the wiring member is pre-compressed at each electrode of the solar battery cell. (Process C). Repeat the above process a and process B a plurality of times, and pre-press the wiring material to the electrodes of all the solar cells. (Process D) The surface is pressed against the resin adhesive while the wiring material is heated to a temperature higher than the curing temperature of the resin adhesive, and the hardening is officially pressed. According to this method, after the pre-compression, since the resin adhesive attached to all the solar battery cells is hardened at the same time, it is pressed, so that it can be manufactured in a shorter time than hardening the resin adhesive of every j% of the solar cells. Solar battery series. However, in the method of Patent Document 1, there is a need for a mounting table for all the solar cells to be temporarily pressed in the process C, and there is a need in the process D for a device in which all the solar cells are simultaneously pressed. As a result, the size of the wiring material pressing device is increased, and there is a problem that the cost is increased. CITATION LIST Patent Literature Patent Literature 1: International Publication No. 2009/011209 [Invention Summary] SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a small size and capable of A wiring material pressing device for pressing a wiring material against an electrode of a solar battery cell, a manufacturing device using the solar battery string 201205854, a wiring material pressing method, and a solar battery string manufacturing method using the same . Means for Solving the Problem According to one aspect of the present invention, a solar cell tandem manufacturing apparatus including: a plurality of solar battery cells in a first and second main faces facing each other is provided Forming electrodes and arranging them in a predetermined direction; the wiring material is one of the plurality of solar battery cells, and the electrode on the first main surface side of one of two adjacent solar battery cells is the same as the other The electrode on the second main surface side is electrically connected; and the resin adhesive is interposed between the electrode and the wiring material, and the solar cell tandem manufacturing apparatus is characterized in that: the adhesive attaching device is provided A solar cell tandem manufacturing apparatus with a wiring material pressing device. Next, the agent attaching means attaches the aforementioned resin adhesive to the electrodes. In the wiring material pressing device, the electrode and the wiring member are pressed while the wiring member is placed on the resin adhesive. Further, the wiring material pressing device includes an input portion, a pre-compression portion, a final pressing portion, a first heating portion of 1 or 2 or more, a second heating portion, and a conveying device. In the input unit, one of the plurality of solar battery cells is placed on the wiring member, and the pre-compression portion is such that the wiring member does not shift over the solar battery cell. The wiring member is temporarily pressed against the solar cell to be charged; the final pressing portion presses the resin adhesive to cause the conductive particles contained in the resin adhesive to be broken, and the resin adhesive is held Conductive; one or two or more first heating portions, wherein the solar cell is heated at a temperature higher than the curing temperature of the resin adhesive at a high temperature of 201205854, which is shorter than a time required for the resin adhesive to harden; (2) The heating unit is heated at a temperature higher than the above-mentioned resin and then y at a temperature higher than the temperature of the solar cell in the above-mentioned resin, and the above-mentioned ^The heating time of the heating part is equal to the total time required for the hardening of the resin adhesive. The day between the temples and the front of the solar cell unit = the electrode The feeding device is a process of transporting the lower portion of each of the injection unit, the pre-compression unit, the main pressing portion, the second heating unit, and the second heating unit. The solar cell unit according to the present invention. The method according to the present invention is a solar cell tandem method. The solar cell string is provided with a plurality of solar cell units in the opposite direction and the second main unit. The electrodes are respectively formed and arranged in the 疋 direction, and the g & wire is the plurality of solar cells, and the other electrodes of the two sides of the two adjacent solar cells are adjacent to each other. - the electrode on the second main surface side of the side is electrically connected, and the tree-working agent is interposed between the electrode and the wiring material, and the solar cell tandem manufacturing method is characterized in that: The first step is to close the above-mentioned (four) adhesive on the respective electrodes; the loading process is to place one of the aforementioned thin solar battery cells on the wiring material; the pre-pressing process is ,so that The wiring material temporarily presses the wiring material against the solar battery cell to be placed without causing a deviation in the j solar battery cell; the process of holding the conductivity 'presses the resin adhesive agent The 201205854 conductive particles contained in the resin adhesive are fractured, and the resin adhesive is provided with conductivity; or two or more heating processes are performed by hardening the solar cell unit above the resin. The temperature of the temperature is heated to be shorter than the time required for the hardening of the resin adhesive; and the heating and curing process is performed by heating the solar cell after the heating at a temperature higher than the curing temperature of the resin adhesive. The total time combined with the heated time can reach the time required for the curing of the resin adhesive, and the wiring member is subsequently and hardened on the electrode of the solar cell. Moreover, according to one aspect of the present invention, a wiring material pressing device is provided in which a solar cell unit is attached to a facing electrode and a second main surface, and respective electrodes of a resin adhesive are attached, and adjacent to each other. The electrode on the first main surface side of one of the two solar battery cells is electrically connected to the other electrode on the second main surface side of the electrode, and is provided with: a portion, a pre-compression portion, a final pressing portion, a crucible or two or more first heating portions, a second heating portion, and a conveying device. In the input unit, one of the plurality of solar battery cells is thrown onto the wiring member, and the pre-compression portion is such that the wiring member does not shift over the solar battery cell. The wiring member is temporarily pressed against the solar cell to be charged; the final pressing portion presses the resin adhesive to contain the conductive particles in the resin, and the resin adhesive holds conductivity; One or two or more first heating units are those in which the solar cell is heated at a temperature higher than a curing temperature of the resin adhesive agent than a curing time of the resin adhesive; and the second heating unit is a second heating unit. The solar battery cell heated by the first heating unit is heated at a temperature higher than the curing temperature of the resin adhesive of 201205854, and the total time combined with the heating time of the ith heating unit reaches the resin. The time required for the hardening of the agent is such that the wiring member is subsequently and hardened on the electrode of the solar cell unit; the transport device, Whenever the input unit, the pre-pressing portion, the pressing portion formal, after the end of the processing of each stage of the second heating portion of the heating portion and the second Shu, prior to said conveyance should be lower solar cell processing. Moreover, according to one aspect of the present invention, a wiring material pressing method is provided in which solar cells are formed on opposite first and second main faces, and respective electrodes of a resin adhesive are attached, and adjacent to each other. a wiring member electrically connected to the electrode on the second main surface side of one of the two solar battery cells 70 and the other electrode on the second main surface side is pressed; The mounting process is performed by placing the solar cell unit on the wiring material; and pre-pressing the process so that the wiring material does not shift on the solar cell unit, and the wiring material is temporarily suspended. Pressing on the solar cell to be placed; the process of holding the conductivity presses the resin adhesive to cause the conductive particles contained in the resin adhesive to be broken, so that the pre-fat adhesive is held Conductivity; i or more than 2, the heating process is performed by heating the solar cell unit at a temperature higher than the bonding temperature of the resin to be shorter than the time required for the hardening of the resin; And the subsequent and hardening process, wherein the heated solar cell is heated at a temperature higher than a curing temperature of the resin adhesive, and the resin is heated for a total of eight times. The time required for the hardening of the agent is such that the wiring 9 201205854 is subsequently and hardened on the aforementioned electrode of the solar cell. According to the present invention, since the process of heating and pressing the adhesive on the solar cell unit is carried out in plural, the device can be pressed by a small wiring material, and the wiring member can be pressed against the electrode of the solar cell with high productivity. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing a light-receiving surface side of a solar battery cell 10 used in the present embodiment. Fig. 2 is a side view of the solar cell string 20 manufactured by the manufacturing apparatus of the present embodiment. Fig. 3 is a plan view showing a solar cell string 20 manufactured by the manufacturing apparatus of the embodiment. Fig. 4 is a side view of the manufacturing apparatus 100 of the solar cell string. Fig. 5 is a manufacturing process diagram of the solar cell string 20. Figure 6 is a front elevational view of the adhesive attachment device 40. Figure 7 is a side view of Figure 6 from the left side of the paper. Fig. 8 is a process diagram for attaching the resin adhesive 22 to the electrodes of the solar cell unit 10. Fig. 9 is a plan view of the solar battery unit 10 held by the solar battery cell input unit 70. Figure 10 is a front elevational view of the adhesive applicator 40 when the electrode 12 of the solar cell unit 10 is followed by the resinous adhesive 22. Fig. 11 is an enlarged view of the vicinity of the solar battery cell 10 of Fig. 10. Figure 12 is a side view of Figure 10 from the left side of the paper.

S 10 201205854 The 13th picture is a magnified view of the solar cell surface of the ι〇图. Fig. 14 is a front view of the adhesive attaching device 4 时 when the release paper 2 3 is peeled off. Fig. 15 is a process diagram for pressing the wiring member 21 against the solar battery cell 1'. [Embodiment] The present invention will be described below with reference to the drawings, and specifically, a solar cell tandem manufacturing apparatus and manufacturing method, an adhesive attaching apparatus, an adhesive attaching method, and a wiring material crimping apparatus according to the present invention. And an embodiment in which the wiring material is pressed against the pressing method. First, the solar battery cell 10 used in the present embodiment and the solar battery string 20 manufactured in the present embodiment will be described. Fig. 1 is a plan view showing the light-receiving surface side of the solar battery cell 10 used in the present embodiment. The solar battery cell 10 is, for example, a polycrystalline stone, and is formed into a pn junction by an internal n-type region and a p-type region. The size and thickness are, for example, 125 mm x 25 mm and 0.2 mm, respectively. A plurality of finger electrodes 11 are formed on the solar cell unit 10, and a plurality of bus electrodes 12 are formed orthogonally thereto. In the solar battery cell 10, a finger electrode 11 and a bus electrode 12 are formed on the surface (first main surface) of the received sunlight as shown. Further, only the bus electrode 12 is formed on the back surface (second main surface). In the present embodiment, the example in which the three bus electrodes 12 are formed is shown. However, the number of the bus electrodes 12 may be limited to three or two, and the number of the bus electrodes 12 corresponding to the size of the solar battery cells 1 may be formed. 201205854 When the light receiving surface of the solar battery cell 10 receives sunlight, the light generating carrier 'that' generates electrons and holes. The finger electrodes collect light generated by the light-receiving surface to generate a carrier. The bus electrode 12 is collected by a light-generating carrier collected by the finger electrode 11. Fig. 2 is a side view of the solar cell string 20 manufactured by the manufacturing apparatus of the present embodiment. Figure 3 is a top view thereof. The solar cell string 20' includes a plurality of solar cells 10' and a wiring member 21 formed of a finger electrode 丨丨 and a bus electrode 12, and a resin adhesive 22. The plurality of solar battery cells 10 are arranged in a line in a direction parallel to the bus electrodes 12. The length of one of the wiring members 21 is about twice as large as the direction in which the bus electrode 12 of the solar cell unit 10 is formed, and a low difference is provided at the center thereof. The solar battery cell 1 is disposed on the upper side of one end side of the wiring member 21 with the height difference therebetween, and the solar battery cell 10 is disposed on the lower side of the other end side, and the wiring member 21 is the two solar battery cells. Connect. More specifically, each of the wiring members 21 is one of the bus electrodes 12 formed on the surface of the solar cell unit 10 and one of the bus electrodes 12 formed on the back surface of the solar cell unit 10. Electrical connection. The resin adhesive 22 is interposed between the bus electrode 12 and the wiring member 21, and these are bonded. The resin adhesive 22 is, for example, a thermosetting epoxy resin containing nickel particles as conductive particles. Since the pressurized resin adhesive 22 causes the conductive particles to collapse, the resin adhesive 22 becomes electrically conductive. Further, the resin adhesive 22' is softened even when heated at 50X: ??? 901, and 丨3 〇 丨 丨 8 which is lower than the melting temperature of the solder. Put the solar cell in series 2 in series 2 through EVA (ethylene vinyl acetate)

A filling material such as S 12 201205854 (ethylene vinyl acetate) is a solar cell module with a glass lid sealer. Fig. 4 is a side view showing a manufacturing apparatus (hereinafter, manufacturing apparatus) 100 of a solar battery string. The manufacturing apparatus of Fig. 4 includes an inspection device 3A, a subsequent agent attaching device 40, a wiring material input device 5A, a wiring material pressing device 6A, and a solar cell early input device 70. In the manufacturing apparatus 1 of the same drawing, the solar battery cell 20 of Fig. 2 is manufactured by using the solar battery cell 10 of Fig. 1 . The inspection device 30 performs inspection of whether or not the solar battery unit has a shape such as a crack, and the solar battery unit is placed in the skirt 70 to perform position adjustment in such a manner that the solar battery unit 10 can be held at the correct position. The adhesive attaching device 40 is attached with a resin adhesive 22 on the bus electrode 12 formed on the front surface and the back surface of the solar battery cell 10, respectively. The wiring member input device 50 is placed in the wiring member crimping device 60 in accordance with the height difference of the wiring member 21. In the wiring material pressing device 60, the resin adhesive 22 is pressurized and heated, and then the wiring member 21 is pressed against the bus electrode 12 of the solar battery cell 10. The solar battery cell input device 70 sucks the solar battery cells 10 by air pressure or the like, and respectively inspects the solar battery cells 10 after inspection to the adhesive attaching device 40, and the solar battery cells 1 to which the adhesive is attached. It is supplied to the wiring material pressing device 60. Fig. 5 is a manufacturing process diagram of the solar cell string 20. First, the inspection device 30 performs inspection of the solar battery cell 10 (step S1), and if the abnormality is not confirmed, the solar battery unit is put into the device 70, and the inspected solar battery unit 10 is taken out from the inspection device 30 toward the adhesive. Attachment device 13 201205854 40 inputs. Then, the adhesive attaching means 4 attaches the resin adhesive 22 to the bus electrode 12 of the solar cell b unit 1 (step S2). The thinner of the adhesive attaching device 4 will be described later, but the adhesive attaching device 4 is formed by forming three bus electrodes on the front surface and the back surface of the solar battery cell 10 to simultaneously attach the resin. The agent 22 can reduce the load on the solar battery cell 10 based on heat or pressure, and can be attached in a short time. Then, the wiring material input device 5 is used to introduce the wiring member 21 having three steps of the height difference into the wiring material pressing device 6 (in this case, as shown in Fig. 4, the wiring members 21 are sandwiched). The height difference is placed at the end of each of the bus electrodes 12 on the surface side of the solar cell unit 1 of the wiring material pressing device 60. Further, the solar cell unit 70 is attached with a resin. The solar battery cell 1 of the second agent 22 is placed on the other end of the wiring member 21 to be placed in the wiring material pressing device 6 (step S4). At this time, the solar battery unit 1 is replaced by the solar battery unit 1 The bus electrode 12 on the back side is placed so as to be placed on each of the wiring members 21. Then, the wiring member pressing device 60 presses and heats the wiring member 60, and the wiring member 21 and the solar battery unit 1 are attached. The meandering electrode 12 of the crucible is pressed (step S5). The details of the wiring material pressing device 6A will be described later. However, as will be described later, the wiring material pressing device 60 can be improved by dividing the heating into a plurality of processes. In addition, since each of the solar battery cells 10 is pressed, the wiring material pressing device 6 can be miniaturized. Hereinafter, the adhesive attaching device of the first feature of the present embodiment 201205854 40 is a front view of the adhesive attaching device 40, and Fig. 7 is a side view of the sixth drawing from the left side of the paper. The adhesive attaching device 4 is provided with the upper attaching portion. 41 a, and the attaching portion 41 b. The upper attaching portion 413 is attached to the bus electrode 12 (hereinafter, simply referred to as the electrode 12) on the surface side of the solar cell 10, and the resin adhesive 22 is attached thereto, and the lower attaching portion 41b A resin adhesive 2 2 is attached to the electrode 12 on the back side of the solar cell unit 10. The upper attaching portion 4la has three supply reels 42a, a half-cut portion 43a, and a pressing member 44a. The roller 45a, the three recovery reels 46a, and the transport rollers 471a to 474a are stripped. The three supply reels 42a are provided in accordance with the interval of the electrodes 12 of the solar cell unit 1. The supply reels 42a are wound around each other. a strip of resin adhesive 22 with release paper 23 ( Hereinafter, the resin adhesive 24) to which the release paper is attached is referred to. When the conveyance roller (first conveyance roller) 471a is rotated, the resin adhesive 24 with the release paper is pulled out from the supply reel 42a, and supplied to the half. The cutting portion 43a is further provided with a resin adhesive 24 attached to the release paper, and a resin adhesive 22 is provided on the outer side of the upper attachment portion 41a, and a release paper 23° half-cut portion 4 3 a is provided on the inner side. The resin adhesive 22 with the release resin resin adhesive 24 is cut along the length of the electrode 12. The transport roller (second transport roller) 472a is rotated, and the resin adhesive 24 with the release paper is attached from the half cut portion. 43a is supplied to the opposite position of the electrode 12 of the solar cell unit 10. The pressing member 44a pressurizes and heats the resin adhesive 24 with the release paper on the electrode 12 on the surface side of the solar battery cell 10, and presses the resin 22 and the electrode 12 against the electrode 12. The stripping roller 45a strips the release paper 23 from the resin-attached agent 24 with the release paper. The take-up reel 46a recovers the peeled release paper 23 when the transport rollers 473a, 474a are rotated. Further, in Fig. 7, although three resin adhesives 24 with release paper are transported by three transport rollers 471a, three resin adhesives 24 with release paper are transported by one transport roller 471a. can. Further, in the same figure, three resin adhesives 24 with release paper are cut by one half-cut portion 43a, but one of the three half-cut portions 43a may be separately cut by one resin adhesive 22. The structure of the attaching portion 41b is substantially the same as that of the above-mentioned attaching portion 41& in the sixth and seventh figures, the respective structural members of the attaching portion 41b are attached with the symbol "b". However, as shown in Fig. 7, the pressing member 44b is different from the opening of the pressing member 44a. The reason for this is that the solar battery cell input device 7 is configured to hold the upper surface of the battery unit ίο, and since the pressing member 44a of the upper attaching portion 41a is formed with irregularities, the pressing member 44a can avoid the solar cell early element. The input device 70 presses the resin adhesive 22 and the electrode 12. The pressing member (first pressing member) 44a and the pressing member (second pressing member) 44b constitute a pressing portion. Further, the transport rollers 473a, 473b, 474a, and 474b and the recovery reels 46a and 46b constitute a collecting portion. Fig. 8 is a view showing the steps of Fig. 5 in order to show the process of attaching the resin to the electrode 22 of the solar cell unit 1 (). First, the resin adhesive 24 to which the paper is attached is placed in advance on the supply reels 42, 42b (step S11). Next, the solar battery unit ίο is put into the adhesive attaching device 40 by the solar battery unit input device 7 (step S12). More specific,

S 16 201205854 The solar battery cell input device 70 holds the solar battery cell 10 between the attaching portion 41a and the lower attaching portion 41b. Fig. 9 is a plan view of the solar battery cell 10 held by the solar battery cell input device 70. As shown in the figure, the tip end portion of the solar battery cell input device 70 has a fork-shaped holding member, and the electrode 12 of the solar battery cell 10 is placed in the gap, and the solar battery cell 10 is held by air pressure or the like. Then, the transport rollers 471a to 474a and 471b to 474b are rotated, and the resin adhesive 24 with the release paper is supplied to the position of the electrode 12 of the solar battery cell 10 (step S13), and the solar energy is put in for the future. In the battery unit 10, the half-cut portions 43a and 43b cut only the resin adhesive 22 to which the resin adhesive 24 of the release paper is attached, and the length of the electrode 12 is cut (step S14). That is, at the electrode 12 of the solar cell unit 10, the resin adhesive 22 cut in accordance with the length of the electrode 12 is supplied. At this time, since the upper attaching portion 41a has three supply reels 42a in the same number as the number of the electrodes 12, it can be supplied with the release paper in such a manner as to oppose the three electrodes 12 on the surface side of all the solar battery cells 1A. Resin adhesive 24. The same applies to the back side of the solar battery unit. Next, as follows, the electrode 12 of the solar battery cell 1 is next to the resin adhesive 22 (step S15). Fig. 1() is a front view showing the connection of the solar cell unit electrode 12 to the fourth (4) ray (4). Fig. 11 is an enlarged view of a single solar cell of the solar cell of Fig. 1G. Further, Fig. 12 is an enlarged view of the solar cell unit of Fig. 12, showing a side view m of the lGi] from the left side of the paper. Further, in the first drawing, the solar battery unit is put into the device 7 and omitted. 17 201205854 First, the crimping member 44a of the upper attaching portion 413 is lowered by an air cylinder or the like, and the pressing member 44b of the lower attaching portion 41b is lifted. Thereby, as shown in FIGS. 10 and 11 , in the solar cell unit 1〇

The resin adhesive 24 to which the respective electrodes 12 are attached with release paper is in contact. Further, as shown in Fig. U, in step S14, the length of the resin adhesive 22 is matched with the length of the electrode 12. Here, as shown in Figs. 12 and 13, the surface of the pressing member 44b of the attaching portion 41b is flat, and the surface of the pressing member 44a of the attaching portion 41a is formed as Bump. This is because the solar cell input device 70 of the upper side of the solar cell unit 1 is held. In other words, the pressing member 44a is a recessed portion that avoids the grip portion of the tip end of the solar battery cell input device 7, and the protruding portion brings the resin adhesive 24 with the release paper into contact with the electrode 12 of the solar cell unit 10. Further, the pressing members 44a and 44b are pressed between the upper and lower resin adhesives 24 with the release paper and the electrode 12 of the solar battery cell 10 for about 4 and 5 seconds, while being pressed by the resin adhesive 22 The softening temperature is higher than the hardening temperature, for example, heating at 5 ° C to 90 ° C. Thereby, the resin adhesive 22 is softened and attached to the electrode 12 of the solar battery cell 1 . Thereafter, the pressing member 44a of the upper attaching portion 41a is raised, and the pressing member 44b of the lower attaching portion 41b is lowered. As shown in Figs. 10 to 13, since all the electrodes 12 are simultaneously pressurized and heated by the resin adhesive 24 with the release paper, as long as the process of the step S15 of Fig. 8 is once performed, all the electrodes can be used. 12 attached adhesive. Therefore, the load on the solar battery unit based on heat or pressure is reduced, and 201205854 can be attached in a short time. Next, the release paper 23 is peeled off from the resin adhesive 22 (step S16). Fig. 14 is a front view of the adhesive attaching device 40 when the release paper 2 3 is peeled off. As shown in the figure, the stripping rollers 45a, 45b are moved over and under the solar cell unit 10 by a cylinder or the like, and the release paper 23 is pulled from both sides by a chuck (not shown). The resin adhesive 22 attached to the electrode 12 of the solar cell peels off the release paper 23. At the end of the stripping, the stripping rollers 45a, 45b return to the original position as shown in Fig. 6. The peeled release paper 23 is taken up by the take-up reels 46a, 46b by the conveyance rollers 473a, 474a, 473b, and 474b rotating. Thereafter, the solar battery unit 10 is taken out from the attaching device by the solar battery cell input device 70 (step S17). By the above, the resin binder 22 can be attached to the electrode 12 of the solar cell. As described above, in the adhesive attaching device 40 of the present embodiment, only the resin adhesive 24 with the release paper of the same number as the electrode 12 of the solar battery cell 10 is used, and the adhesive is attached from the front side and the back side of the solar battery cell 10. Pressurize and heat. Therefore, all of the electrodes 12 can be attached with the resin adhesive 22 at the same time, the load on the solar battery cells 10 can be alleviated, and at the same time, the time for attaching the resin adhesive 22 can be shortened. Next, the wiring member crimping device 60 according to the second feature of the embodiment will be described in detail. The wiring material crimping device 60 of FIG. 4 includes an input unit 71, a pre-clamping unit 72, a final pressing portion 73, a first heating unit 74, a second heating unit 75, and a transport device that is used in common by these units. 61 and heating device 62. From the input unit 71 19 201205854 to the second heating. Each of the 卩75 is in a space in which one of the solar cells 10 is occupied by the transport device. The transport device 61 is in the order of the solar battery unit 10 from the input unit 71 to the second heating unit 75. At the end of the stage process, the heat transfer device 62 heats the solar battery cells 1 to the next. The solar cell unit 1 is heated at a different temperature. In the input unit 71, the solar cell unit 10 is attached to the electrode 12 by the wiring member 21 and the resin adhesive 22, and the pre-pressing portion 72 has a pressing member 63' The wiring member 21 and the solar battery cell 1 are pre-compressed by the pressurization by the pressing member 63 and the heating by the heating device 62. The main pressing portion 73 has a horizontal pressing member 64 on the lower surface, and is added to the resin adhesive 22 The upper pressure ruptures the conductive particles contained in the recording of the resin adhesive 22 to obtain conductivity. Further, 'the heating member 64a is disposed under the pressing member 64, and the heating device 62' is used to heat the resin. 22. The first heating unit 74 and the second heating unit 75 share a non-contact heating device 65 and heat the resin adhesive 22 to cure the non-contact heating device 65. For example, an IR (infrared) lamp, IH (induced heating), and heat are provided. Fig. 15 is a process diagram for pressing the wiring member 21 against the solar battery cell 1A, and the step S5 of Fig. 5 is shown in detail. First, the solar battery cell input device 70 is attached with a resin. In the solar battery cell 10 of the agent 22, the wiring material loading device 50 applies the wiring member 21 to the input portion of the wiring material pressing device 60 (step S21). More specifically, the solar battery cell input device 70 is a solar battery device. The unit 10 is placed on the wire 21 of the 201205854 that has been put into operation, and the wiring material input device 50 is used to put the wiring member 21 having the height difference on the solar battery cell 1A. The input unit 71 is used for the next process. The heating device 62 may preheat the resin adhesive 22. The time required for the process of the step S21 is, for example, 6 seconds. When the solar battery cell 10 and the wiring member 21 are put in, the transport device 6 (1) The solar battery cells 10 and the wiring member 21 are supplied to the pre-compression portion 72, and the solar battery cells 10 are continuously supplied to the input portion 71 at a ratio of one in six seconds. Next, in the case of the pre-compression portion 72, the heating device 62 is heated at a temperature lower than the softening temperature of the resin adhesive 22, and is heated at a temperature of 50 ° C to 90 ° C, for example, while being pressed. The member 63 pressurizes the wiring member 21 and the solar battery cell 10 to soften the resin adhesive 22 to pre-press the wiring member 21 and the solar battery cell 1 (step S22) because the same on the front and back surfaces of the solar battery cell 10. The position forming electrode 12 is preliminarily pressed by the wiring member 21 on both the front and back surfaces of the solar battery cell 10. Thereby, in the subsequent process, the wiring member 21 can be prevented from leaving the original position on the solar battery cell 1A. The time required for the process of step S22 is, for example, 3 seconds. The input process of the front solar battery cell 10 (step S21) is completed in 3 seconds because it takes 6 seconds, and the next solar battery cell 1 is not immediately transported from the input unit 71 to the pre-compression portion 72. Therefore, the preloading is completed in 3 seconds, and then standby for 3 seconds. After the preloading portion is held for a total of 6 seconds, the transport device 61 transports the solar battery unit 1 from the preloading portion 72 to the final pressing. 4 73 'At the same time, the second solar cell unit 21 201205854 is sent from the investment unit 71 to the pre-compression unit 72. In the case of the main pressing portion 73, the resin adhesive 22 is pressed by the pressing member 64 at about 2 to 3 MPa to be pressed. Thereby, the conductive particles contained in the resin binder 22 are broken to obtain conductivity. Further, the lower surface of the pressing member 64 is flat. Since the wiring member 21 is placed on the upper surface of the solar battery cell 10, the pressing member 64 does not come into contact with the solar battery cell 10 when the pressing member 64 is pressurized. Here, the pressurizing means 64a is provided at the lower portion of the pressurizing member 64, and it is not only pressurized, but also heated to harden the resin adhesive 22. The time required for the final pressing is '3 seconds, for example, the time required for the resin adhesive 22 to harden is, for example, 15 seconds. Therefore, it is assumed that the pressing member 64 and the pressing device 64a are used, and the pressing is performed. At the same time, the resin adhesive 22 is heated to completely harden, and it is necessary to heat for 15 seconds. As a result, this process becomes a bottleneck and reduces overall capacity. In other words, the takt time required for the completion of the pressing of the solar cell unit 1 from the solar cell unit 1 to the wiring material pressing device 6 to the wiring member 21 is 6 seconds (step S21). +6 seconds (step S22) + 15 seconds (heating for the final pressing and the resin adhesive 22 is completely hardened for 15 seconds) = 27 shift, and the calyx is required to heat the resin adhesive 22 by heating for 19 seconds. Therefore, the solar cell unit becomes one per minute (four per minute). Therefore, in the present embodiment, the longest time of the processes (steps S21 and S22 and the final pressing) is focused on step S21. For 6 seconds, the resin adhesive 22 is not completely cured in step S23, and is divided into a plurality of processes for hardening heating.

S 22 201205854 First, in step S23 'press the resin adhesive 22 in parallel with the formal pressing, by adding «Wei and feeding, the temperature of the resin adhesive is more moderate than the curing temperature', for example, l3 ( Rc~峨 is heated to the resin adhesive 22 (step paste). In the process, the resin is only heated for 3 seconds in the 15 seconds required for the hardening of the resin 2, and 'waits for 3 seconds in the formal pressing portion 73. After the clock, the first and second heating units 75 are transported to the first and second heating units 75, and the remaining ones are heated in two seconds, that is, in the i-th heating unit 74, by heating means and non-contact heating. The device 65 is added for the above temperature for (10) seconds (step s24). Further, it is transported to the second heating unit 75, and is similarly fined (step milk). The first and second heating units 74 and 75 are attached. In the second heating unit 75, the total pressing portion 73 and the heating time of the first heating unit 74 are combined and heated for a total of 15 seconds. Thereby, the time required for the hardening of the resin adhesive 22 is achieved, and the resin adhesive 22 is hardened. The wire is connected to the electrode 12 of the solar cell unit 1. In this case, the processes of steps S21 to S25 are all 6 seconds (steps S22 and S23 are combined with the standby time of 3 seconds for 6 seconds). The contact time is 6 seconds χ 5 (steps S21 to S25) = 3 〇 seconds, but the capacity can be improved to 1 ( 1 (10 per minute) of solar cells 1 〇. Also, the wiring material of Fig. 4 The pressing device 6 〇 does not perform hardening of the resin adhesive 22 after pre-pressing all the solar battery cells 10, because the size of the wiring material pressing device 6 ' is irrelevant for each solar battery cell 1 ' The number of the solar battery cells to be connected is approximately 5 pieces of the solar battery cells 1 of the inlet portion 71 to the second heating portion 75, which is the same as the "5J", and the wiring material of the present embodiment. The pressing device 6 is required to perform the heating process for hardening the resin adhesive 22 for a long time. Therefore, the solar cell string can be produced with high productivity. Also, since each solar cell unit 10 is hardened. The wiring material pressing device 6 can be miniaturized. The time of each step of the above-mentioned Fig. 15 is an example, and the curing of the resin adhesive 22 can be divided into a plurality of processes in accordance with the actual time. For example, the process of the step S21 In the case of 3 seconds, after heating for 3 seconds in step 823, the remaining 12 seconds are divided into 4 processes (that is, the first heating unit 74 is set to 3), and the throughput can be changed to 3 seconds. Further, for example, In the case where the time required for the process of step S22 is longer than the process of step S21, the heating time in each heating portion may be made smaller than the time required for the process in step S22. According to the above description, the additional effects or various modifications of the present invention are conceivable as long as they are the same, but the form of the present invention is not limited to the above embodiments. It is possible to make various additions, modifications, and partial deletions to the scope of the invention and the scope of the invention and the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing a side of a light-emitting surface of a solar battery unit used in the present embodiment. Fig. 2 is a side view of the solar cell string 20 manufactured by the manufacturing apparatus of the present embodiment.匕 Fig. 3 is a solar energy manufactured by the manufacturing apparatus of the present embodiment

S 24 201205854 Top view of the battery string 20. Fig. 4 is a side view of the manufacturing apparatus 100 of the solar cell string. Fig. 5 is a manufacturing process diagram of the solar cell string 20. Figure 6 is a front elevational view of the adhesive attachment device 40. Figure 7 is a side view of Figure 6 from the left side of the paper. Fig. 8 is a process diagram for attaching the resin agent 22 to the electrode 12 of the solar cell unit 10. Fig. 9 is a plan view of the solar battery unit 10 held by the solar battery cell input unit 70. Figure 10 is a front elevational view of the adhesive applicator 40 when the electrode 12 of the solar cell unit 10 is followed by the resinous adhesive 22. Figure 11 is an enlarged view of the vicinity of the solar cell unit ίο of Fig. Figure 12 is a side view of Figure 10 from the left side of the paper. Fig. 13 is an enlarged view of the vicinity of the solar cell unit 1 of Fig. 10. Fig. 14 is a front view of the adhesive attaching device 40 when the release paper 23 is peeled off. Fig. 15 is a process diagram for pressing the wiring member 21 against the solar battery cell 10. [Description of main component symbols] 10.. Solar cell 11.. Finger electrode 12... Bus bar electrode 20... Solar cell string 21.. Wiring material 22·.·Resin adhesive 23... Release paper 24... resin adhesive with release paper... inspection device 40... adhesive attachment device 25 201205854 41a... top attachment portion 41b... lower attachment portion 42a, 42b. 43a, 43b··. half-cut portions 44a, 44b.·clamping members 45a, 45b... stripping rollers 46a, 46b··. recovery reels 47la to 474a, 47lb to 474b... transport rollers 50. . Wiring material input device 60.. wiring material pressing device 61.. conveying device 62, 64a... heating device 63.. pressing member 64.. pressing member 65.. non-contact heating device 70.. Solar cell unit input device 71.. Input unit 72.. Pre-pressing portion 73.. Final pressing portion 74.. First heating portion 75... Second heating portion 100.. Solar energy Manufacturing device for battery string S1-S5, S11-S17, S21-S25.··Steps

S 26

Claims (1)

  1. 201205854 VII. Patent Application Range: 1. A solar cell tandem manufacturing apparatus, the solar cell string comprising: a plurality of solar cell units, wherein electrodes are formed on the first and second main faces of the opposite sides, and are arranged in an array The wiring member is the aforementioned one of the first main surface side of the one of the two adjacent solar battery cells and the other of the second main surface sides of the plurality of solar battery cells The electrode is electrically connected; and a resin adhesive is interposed between the electrode and the wiring material, and the solar cell tandem manufacturing apparatus includes: a device attaching device, respectively, on the electrode And a wiring material pressing device that presses the electrode and the wiring member in a state where the wiring member is placed on the resin adhesive, and the wiring material pressing device includes: In the input unit, one of the plurality of solar battery cells is placed on the wiring member; and the pre-compression portion is The wiring member is temporarily pressed against the input solar battery unit so that the wiring member does not shift in the solar battery unit; and the final pressing portion pressurizes the resin adhesive to include In the first 27 201205854, the conductive particles of the resin adhesive are cleaved to make the resin adhesive possess conductivity; and one or two or more first heating portions are used to heat the solar cell above the resin. The temperature at which the hardening temperature of the agent is heated is shorter than the time required for the curing of the resin adhesive; and the second heating unit heats the solar cell after heating the first heating unit to be higher than the resin adhesive. The temperature of the temperature is heated, and the total time combined with the heating time of the first heating unit is increased by the time required for the resin adhesive to be cured, and the wiring member is subsequently cured and cured on the electrode of the solar cell; The transport device is each of the input unit, the pre-compression unit, the official presser unit, and the first The processing of each of the second heating unit and the processing of the second heating unit are performed, and the solar battery unit to be subjected to the lower stage processing is transported. The heating time of the first and second heating units is the same as the time required for the treatment of the pre-compression portion and the final pressing portion. The second item of the second patent In the solar battery tandem manufacturing apparatus, the number of the first heating units is set as follows. The heating time of the first and second heating units is the same as the input = the preloading The time required for the treatment of the portion and the final crimping portion is not longer than the time, and the resin adhesive is cured during the total time of heating of the first and second heating portions S 28 201205854. 4. The solar cell manufacturing apparatus according to any one of claims 1 to 3, wherein the said final crimping portion presses the resin adhesive to cause the conductive particles to be broken while being higher than the resin. The temperature of the hardening temperature of the agent is heated, and also functions as the first heating unit. The solar cell tandem manufacturing apparatus according to any one of claims 1 to 4, wherein the first and second heating units share a heating device that can simultaneously heat two or more of the solar battery cells. 6. The solar cell tandem manufacturing apparatus of claim 5, wherein the heating device is an IR lamp, IH or hot air. 7. A solar cell tandem manufacturing method comprising: a plurality of solar cell units in which electrodes are formed on the first and second main faces facing each other and arranged in a predetermined direction; Among the plurality of solar battery cells, the electrode on the first main surface side of one of the adjacent two solar battery cells is electrically connected to the electrode on the other second main surface side. And a resin adhesive interposed between the electrode and the wiring material, wherein the solar cell tandem manufacturing method includes: an attaching process of attaching the resin adhesive to the electrode; In the manufacturing process, 29 201205854 of the plurality of solar battery cells are placed on the wiring village; the pre-pressing process is such that the wiring material does not shift on the solar cell. The method temporarily presses the wiring material against the solar cell to be placed; and the method of holding the conductivity is to add the resin adhesive Pressing the conductive particles contained in the resin adhesive to cause the resin adhesive to have electrical conductivity; and 1 or more heating processes, the solar cell is monotonous to be higher than the resin adhesive a temperature at which the temperature of the hardening temperature is shorter than a time required for the hardening of the resin adhesive; and the subsequent curing process is to heat the aforementioned solar cell unit to be higher than the hardening temperature of the former hybrid The temperature is heated, and the total time combined with the heating time is brought to the extent that the resin is cured, and the material is subsequently adhered to and hardened on the electrode of the solar cell. 8. The two-wire device is the first in the opposite direction of the solar cell unit! And the second main surface and the electrode of the two adjacent solar energy sides of the resin adhesive are attached to each other, and the first main electric property W second main The surface of the surface of the electrode is electrically connected to the material (four); and is characterized in that the material input portion is stored, and the cutting energy battery unit is stored until the wiring solar power is applied to the pre-compression portion. The wiring material is not offset on the cell unit, and the solar cell is temporarily pressed by the wiring material in the form of 4 201205854; the final pressing portion presses the resin adhesive to be included in the foregoing The conductive particles of the resin adhesive are broken, and the resin adhesive possesses conductivity; and one or two or more first heating portions 'the solar cell unit' is higher than the curing temperature of the resin adhesive. The temperature heating is shorter than the time required for the resin adhesive to harden; and the second heating unit is configured to heat the solar cell unit after the heating of the second heating unit to be higher than the curing temperature of the resin adhesive. The heating temperature of the heating time of the first heating unit together Shu of β. Ten times to reach the time required for the curing of the resin adhesive, the wiring material is subsequently and hardened on the electrode of the solar cell; and the meta-transport device is the official part of the investment unit, the leaking part, and the first 5 After the crimping portion, the first heating portion, and the second heating portion of each of the two sections, the solar cell is transported to the next section (4). The solar cell is formed in the solar cell. Correct. The adjacent electrode and the second main surface are attached with the respective electrodes of the resin adhesive, and are:::===:=-bridged to be placed on the solar cell line wire of the aforementioned H-scale; 31 201205854 The pre-pressing process is such that the wiring material is temporarily pressed against the placed solar cell unit so that the wiring material does not shift in the solar cell unit; The process of pressurizing the resin adhesive to cause the conductive particles contained in the resin adhesive to be broken, and the resin adhesive to have conductivity; and one or two or more heating processes for the solar cell And heating at a temperature higher than a curing temperature of the resin adhesive agent, which is shorter than a time required for hardening of the resin adhesive; and, in addition to the hardening process, the aforementioned solar cell unit after being heated is higher than the foregoing Heating at a temperature at which the curing temperature of the resin adhesive is heated, so that the total time combined with the heated time reaches the time required for the curing of the resin adhesive, and the aforementioned Wire and then cured on the electrode of the solar cell. S 32
TW100122852A 2010-06-29 2011-06-29 Solar cell string manufacturing device and manufacturing method, adhesive bonding device and adhesive bonding method TW201205854A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2010147990A JP2012015194A (en) 2010-06-29 2010-06-29 Manufacturing apparatus and method for solar battery string and apparatus and method for attaching adhesive agent
JP2011009884A JP5021080B2 (en) 2011-01-20 2011-01-20 Solar cell string manufacturing apparatus and manufacturing method, wiring material crimping apparatus, and wiring material crimping method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104160517A (en) * 2012-02-28 2014-11-19 富士机械制造株式会社 String wiring device and wiring method and solar cell module production device and production method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104160517A (en) * 2012-02-28 2014-11-19 富士机械制造株式会社 String wiring device and wiring method and solar cell module production device and production method
CN104160517B (en) * 2012-02-28 2017-01-18 富士机械制造株式会社 Serial electrical power wiring assembly and wiring method and solar module manufacturing installation and manufacture method

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