TW201343307A - Soldering apparatus of photovoltaic devices tab leads - Google Patents
Soldering apparatus of photovoltaic devices tab leads Download PDFInfo
- Publication number
- TW201343307A TW201343307A TW101150802A TW101150802A TW201343307A TW 201343307 A TW201343307 A TW 201343307A TW 101150802 A TW101150802 A TW 101150802A TW 101150802 A TW101150802 A TW 101150802A TW 201343307 A TW201343307 A TW 201343307A
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- Prior art keywords
- strip
- solar cell
- unit
- strip conductor
- solar battery
- Prior art date
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- 238000005476 soldering Methods 0.000 title claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 239000004020 conductor Substances 0.000 claims description 101
- 238000003466 welding Methods 0.000 claims description 76
- 230000004907 flux Effects 0.000 claims description 32
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 230000003028 elevating effect Effects 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 19
- 238000001816 cooling Methods 0.000 description 17
- 230000032258 transport Effects 0.000 description 14
- 229910000679 solder Inorganic materials 0.000 description 13
- 238000001179 sorption measurement Methods 0.000 description 10
- 238000005452 bending Methods 0.000 description 8
- 238000012937 correction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
Description
本發明是關於太陽能電池用帶狀導線(tab lead)焊接裝置，更詳細的說，是將多個太陽能電池單元排列後、藉由焊接帶狀導線將多個太陽能電池單元形成電池串時，能將帶狀導線可靠地保持在各太陽能電池單元上進行焊接的太陽能電池用帶狀導線焊接裝置。 The present invention relates to a tab lead welding device for a solar cell. More specifically, when a plurality of solar battery cells are arranged and a plurality of solar battery cells are formed into a battery string by welding a strip conductor, A strip conductor welding device for a solar cell in which a strip conductor is reliably held on each solar cell unit for soldering.
現有技術是將多個太陽能電池單元排成一列、藉由帶狀導線電氣連接相鄰的太陽能電池單元後形成電池串的，在所述工序中所採用的連接方法是將帶狀導線焊接在各太陽能電池單元上。 In the prior art, a plurality of solar battery cells are arranged in a row, and a battery string is formed by electrically connecting adjacent solar battery cells by a ribbon wire. The connection method used in the process is to solder the ribbon wires to each of the wires. On the solar cell unit.
藉由焊接進行太陽能電池單元與帶狀導線的連接時，為了進行焊接，一般在太陽能電池單元表面的電極部塗佈焊料、或在帶狀導線側也塗佈焊料後，將帶狀導線重疊在太陽能電池單元上，將帶狀導線按壓在太陽能電池單元的面上的同時，融化焊料。 When the solar cell is connected to the strip conductor by soldering, in order to perform soldering, solder is usually applied to the electrode portion on the surface of the solar cell or solder is applied to the strip conductor side, and then the strip conductor is overlapped. On the solar cell unit, the strip wire is pressed against the surface of the solar cell unit, and the solder is melted.
作為太陽能電池用帶狀導線焊接裝置，已經提議的裝置有：沿太陽能電池單元與帶狀導線的搬送方向配置帶狀導線的押壓部件，所述按壓部件和藉由搬送帶搬送的太陽能電池單元及帶狀導線同期移動的同時，藉由彈簧向帶狀導線施加按壓力(參照專利文獻1、2)。 As a strip wire bonding device for a solar cell, there has been proposed a device in which a pressing member for arranging a ribbon wire in a conveying direction of a solar battery cell and a ribbon wire, the pressing member and a solar battery cell transported by a conveyor belt At the same time as the strip conductors move simultaneously, a pressing force is applied to the strip conductors by a spring (see Patent Documents 1 and 2).
在太陽能電池的製造中，太陽能電池單元的成本佔有很大的份額。近年來，為了降低成本，很多情況都是減少電池單元的厚度。從而使電池單元容易龜裂，因此在焊接工序中減少電池單元的破損受到重視。 In the manufacture of solar cells, the cost of solar cells accounts for a large share. In recent years, in order to reduce costs, many cases have been to reduce the thickness of the battery unit. Therefore, since the battery unit is easily cracked, it is important to reduce the damage of the battery unit in the welding process.
薄太陽能電池單元中，存在太陽能電池單元彎曲；在加熱或冷卻時太陽能電池單元會產生更大的彎曲。嚴重時，會產生數毫米的彎曲。因此，現有的太陽能電池用帶狀導線焊接裝置，很難將太陽能電池單元及帶狀導線定位在規定位置上進行焊接。 In a thin solar cell unit, there is a bending of the solar cell unit; the solar cell unit produces a greater curvature when heated or cooled. In severe cases, a few millimeters of bending will occur. Therefore, in the conventional strip wire bonding apparatus for solar cells, it is difficult to position the solar cell unit and the strip conductor at a predetermined position for soldering.
[專利文獻1]特開2000-22188號公報 [Patent Document 1] JP-A-2000-22188
[專利文獻2]特開2004-39856號公報 [Patent Document 2] JP-A-2004-39856
鑒於現有裝置在焊接太陽能電池單元及帶狀導線時產生的問題，本發明的目的在於：提供一種太陽能電池用帶狀導線焊接裝置，可在太陽能電池單元的表面或背面、或表面和背面兩面 進行太陽能電池單元及帶狀導線的焊接，焊接品質良好且穩定，即使是薄太陽能電池單元的情形，也不會導致電池單元龜裂。 In view of the problems existing in the prior art in welding solar battery cells and ribbon wires, the present invention aims to provide a ribbon wire bonding device for solar cells, which can be on the surface or the back surface of the solar cell unit, or on both the front and back sides. The welding of the solar cell unit and the strip conductor is good and stable, and even in the case of a thin solar cell, the battery unit is not cracked.
以解決上述問題為目的的第1發明的焊接裝置，是一種連接太陽能電池單元及帶狀導線的太陽能電池用帶狀導線焊接裝置，包括：預熱部及焊接部。所述預熱部包括：預熱構件，對太陽能電池單元及帶狀導線進行預熱；以及矯正構件，對帶狀導線進行矯正。所述焊接部包括：加熱構件，對太陽能電池單元及帶狀導線進行加熱；帶狀導線按壓構件，沿著設置在太陽能電池單元的一面上的帶狀導線而設置；保持構件，保持設置在太陽能電池單元的相反面上的帶狀導線及太陽能電池單元；以及升降構件，對保持構件進行升降。 A welding device according to a first aspect of the present invention, which is directed to the above-mentioned problem, is a strip-shaped wire bonding device for a solar cell which is connected to a solar battery cell and a strip conductor, and includes a preheating portion and a welded portion. The preheating portion includes: a preheating member that preheats the solar cell unit and the strip conductor; and a correcting member that corrects the strip conductor. The soldering portion includes: a heating member that heats the solar cell unit and the strip conductor; a strip conductor pressing member that is disposed along a strip wire disposed on one side of the solar cell unit; and a holding member that remains disposed in the solar energy A strip conductor and a solar cell unit on the opposite side of the battery unit; and a lifting member that lifts and lowers the holding member.
根據第1發明，即使是薄太陽能電池單元的情形，也可對太陽能電池單元及帶狀導線進行可靠的焊接，不會導致電池單元龜裂。 According to the first aspect of the invention, even in the case of a thin solar battery cell, the solar cell unit and the strip conductor can be reliably welded without causing cracking of the battery unit.
第2發明的焊接裝置基於第1發明，其中所述太陽能電池單元及帶狀導線的所述保持構件的升降構件是使用偏心凸輪的升降機構。 According to a first aspect of the invention, in the welding apparatus of the second aspect of the invention, the lifting member of the holding member of the solar battery unit and the strip conductor is an elevating mechanism using an eccentric cam.
根據第2發明，在進行焊接時，需要使承載在保持構件上的太陽能電池單元及帶狀導線上升；由於使用偏心凸輪作為升降機構，因此在上升端的上升速度為零，停止時沒有衝擊、承載在保持構件上的太陽能電池單元及帶狀導線不會產生位置偏差。因 此，可在正確的位置進行焊接。 According to the second aspect of the invention, it is necessary to raise the solar battery cells and the strip conductors carried on the holding member during the welding; since the eccentric cam is used as the elevating mechanism, the ascending speed at the rising end is zero, and there is no impact or load at the stop. The solar cell and the strip conductor on the holding member do not cause positional deviation. because Therefore, the welding can be performed in the correct position.
第3發明的焊接裝置基於第1發明或第2發明，其中所述太陽能電池單元及帶狀導線的所述保持構件包括多孔板。 A welding apparatus according to a third aspect of the invention is the first aspect or the second aspect, wherein the holding member of the solar battery cell and the strip conductor includes a porous plate.
根據第3發明，保持構件是多孔板。由於可以對承載在多孔板的太陽能電池單元進行整面真空吸附，因此藉由加熱構件對即使是薄太陽能電池單元進行加熱，也不會在焊接中產生彎曲。因此，可在正確的位置進行焊接。 According to the third invention, the holding member is a porous plate. Since the solar cell carried on the perforated plate can be vacuum-coated on the entire surface, even if the thin solar cell is heated by the heating member, no bending occurs in the welding. Therefore, welding can be performed in the correct position.
第4發明的焊接裝置基於第1發明至第3發明中任一發明，其中所述預熱構件的帶狀導線的矯正構件具有溝槽，所述溝槽可供所述帶狀導線插通至對太陽能電池單元及帶狀導線進行預熱的板狀部件中。 A welding apparatus according to a fourth aspect of the invention is the invention of any one of the first to third aspects, wherein the correction member of the strip conductor of the preheating member has a groove through which the strip wire is inserted In the plate-like part that preheats the solar cell unit and the strip conductor.
根據第4發明，可修正纏卷成筒狀帶狀導線的捲曲度、良好修正將帶狀導線設置在太陽能電池單元的匯流條上時的形狀。 According to the fourth aspect of the invention, it is possible to correct the degree of curl of the tubular strip-shaped wire wound, and to correct the shape when the strip-shaped wire is placed on the bus bar of the solar battery cell.
第5發明的焊接裝置基於第1發明至第4發明中任一發明，其中所述帶狀導線的按壓構件是多個棒狀部件，所述各棒狀部件具有藉由簡單操作即可從所述按壓構件的本體進行交換的安裝結構。 According to a fifth aspect of the invention, in the welding device according to any one of the first to fourth aspects of the present invention, the strip member is a plurality of rod members, and each of the rod members has a simple operation The mounting structure in which the body of the pressing member is exchanged.
根據第5發明，帶狀導線的按壓構件是多個棒狀部件，具有藉由簡單操作即可進行交換的結構。因此，在焊接時如果棒狀部件的頂端有損傷、造成焊接在帶狀導線的焊接處產生壓痕狀的傷痕，可以立即對其進行交換。 According to the fifth aspect of the invention, the pressing member for the strip-shaped wire is a plurality of rod-like members, and has a structure that can be exchanged by a simple operation. Therefore, if the top end of the rod-shaped member is damaged during welding, causing an indentation-like flaw in the welded portion of the strip-shaped wire, it can be exchanged immediately.
第6發明的焊接裝置基於第1發明至第5發明中任一發 明，還包括焊劑塗佈部，在太陽能電池單元上焊接帶狀導線時、將焊劑塗佈在焊接部。 The welding device according to the sixth aspect of the invention is based on any one of the first invention to the fifth invention. Further, the flux coating portion is further provided, and when the strip conductor is welded on the solar battery cell, the flux is applied to the welded portion.
根據第6發明，藉由焊劑塗佈部將焊劑塗佈在太陽能電池單元及帶狀導線的焊接處，可可靠地進行焊接。 According to the sixth aspect of the invention, the flux is applied to the welded portion of the solar battery cell and the strip conductor by the flux application portion, whereby the soldering can be reliably performed.
第7發明的焊接裝置基於第6發明，還設置有焊劑吸取裝置或焊劑回收裝置。 According to a sixth aspect of the invention, in the welding apparatus of the seventh aspect of the invention, the flux suction device or the flux recovery device is further provided.
根據第7發明，由於設置有吸取裝置或焊劑回收裝置，不會產生焊劑充滿裝置內部、附著在裝置的側面等處設置的丙烯透明覆蓋物的內側面上，從而使透明覆蓋物發生模糊的現象。因此，可確認內部的狀態，提高維護性能。 According to the seventh aspect of the invention, since the suction device or the flux recovery device is provided, the inner surface of the transparent cover of the acrylic which is provided inside the flux-filling device and attached to the side surface of the device does not occur, and the transparent cover is blurred. . Therefore, the internal state can be confirmed and the maintenance performance can be improved.
10、10A、10B、10C‧‧‧太陽能電池單元 10, 10A, 10B, 10C‧‧‧ solar cells
11‧‧‧表面接續電極(匯流條) 11‧‧‧ Surface connection electrode (bus bar)
12‧‧‧背面接續電極(匯流條) 12‧‧‧Back connection electrode (bus bar)
13‧‧‧指狀元件 13‧‧‧ finger components
15、15A、15B‧‧‧帶狀導線 15, 15A, 15B‧‧‧ ribbon conductor
20‧‧‧電池單元供給裝置 20‧‧‧Battery unit supply unit
30‧‧‧帶狀導線供給部 30‧‧‧Strip wire supply department
32‧‧‧供給巻筒 32‧‧‧Supply cylinder
33‧‧‧彎曲成形部 33‧‧‧Bending forming department
34‧‧‧切斷部 34‧‧‧cutting department
35、36‧‧‧卡盤部 35, 36‧‧‧ chuck department
40‧‧‧焊劑塗佈部 40‧‧‧Solder Coating Department
41‧‧‧噴嘴 41‧‧‧Nozzles
50‧‧‧搬送部 50‧‧‧Transportation Department
51‧‧‧搬送帶 51‧‧‧Transport belt
52‧‧‧搬送面 52‧‧‧Transfer surface
55a、55b‧‧‧搬送滾柱 55a, 55b‧‧‧Transfer roller
56‧‧‧吸附裝置 56‧‧‧Adsorption device
60‧‧‧予熱部 60‧‧‧Preheating Department
61‧‧‧臨時置板 61‧‧‧ Temporary board
62‧‧‧收容溝 62‧‧‧ Containment ditch
63‧‧‧加熱板 63‧‧‧heating plate
64‧‧‧加熱器 64‧‧‧heater
70‧‧‧焊接部 70‧‧‧Welding Department
71‧‧‧保持板 71‧‧‧Maintenance board
72‧‧‧真空室 72‧‧‧vacuum room
80‧‧‧升降部 80‧‧‧ Lifting Department
90‧‧‧帶狀導線按壓部 90‧‧‧Strip wire pressing
91‧‧‧按壓部本體 91‧‧‧ Pressing body
92‧‧‧套筒 92‧‧‧ sleeve
93‧‧‧按壓部件 93‧‧‧Resist parts
94‧‧‧按壓器 94‧‧‧ Presser
100‧‧‧焊接裝置 100‧‧‧ welding equipment
101‧‧‧基座 101‧‧‧Base
102‧‧‧透明罩 102‧‧‧Transparent cover
200‧‧‧焊劑吸取部 200‧‧‧Feel suction department
201‧‧‧集塵罩 201‧‧‧ dust cover
202‧‧‧管道 202‧‧‧ Pipes
810‧‧‧上部板 810‧‧‧ upper board
811‧‧‧導向塊 811‧‧‧guide block
812、831‧‧‧塊部件 812, 831‧‧ ‧ parts
820‧‧‧安裝板 820‧‧‧Installation board
821‧‧‧導向杆 821‧‧‧guide rod
822‧‧‧保持體 822‧‧‧ Keeping body
823‧‧‧旋轉軸 823‧‧‧Rotary axis
824‧‧‧滾柱軸承 824‧‧‧Roller bearing
825‧‧‧齒輪 825‧‧‧ gear
830‧‧‧基座板 830‧‧‧Base plate
H‧‧‧加熱構件 H‧‧‧heating components
C‧‧‧冷卻部 C‧‧‧Cooling Department
D‧‧‧中心距離 D‧‧‧Center distance
W‧‧‧電池串 W‧‧‧Battery string
L‧‧‧導線 L‧‧‧ wire
SD‧‧‧支架 SD‧‧‧ bracket
ST‧‧‧堆料器 ST‧‧‧Stacker
E‧‧‧偏心量 E‧‧‧eccentricity
F‧‧‧焊劑 F‧‧‧Solder
K‧‧‧溝 K‧‧‧Ditch
R‧‧‧導軌 R‧‧‧rail
圖1是表示本發明具體實施方式中的太陽能電池用帶狀導線焊接裝置的整體正面圖。 Fig. 1 is a front elevational view showing a strip wire bonding apparatus for a solar cell according to a preferred embodiment of the present invention.
圖2(a)、圖2(b)、圖2(c)是表示本發明焊接裝置中預熱構件及保持構件的升降機構的說明圖。 2(a), 2(b), and 2(c) are explanatory views showing a lifting mechanism of a preheating member and a holding member in the welding device of the present invention.
圖3(a)、圖3(b)是表示本發明焊接裝置中預熱構件及保持構件的說明圖。 3(a) and 3(b) are explanatory views showing a preheating member and a holding member in the welding device of the present invention.
圖4(a)、圖4(b)是表示本發明焊接裝置中帶狀導線按壓構件的說明圖。 4(a) and 4(b) are explanatory views showing a strip-shaped wire pressing member in the welding device of the present invention.
圖5(a)、圖5(b)是表示本發明焊接裝置中焊劑塗佈構件 的說明圖。 5(a) and 5(b) are diagrams showing a flux application member in the welding device of the present invention. Illustration of the diagram.
圖6(a)、圖6(b)是表示太陽能電池單元的說明圖。 6(a) and 6(b) are explanatory views showing a solar battery cell.
圖7是表示多個太陽能電池單元串聯後形成的電池串的平面圖。 Fig. 7 is a plan view showing a battery string formed by connecting a plurality of solar battery cells in series.
圖8是表示多個太陽能電池單元串聯後形成的電池串的側面圖。 Fig. 8 is a side view showing a battery string formed by connecting a plurality of solar battery cells in series.
圖9是表示焊接工序的模式圖。 Fig. 9 is a schematic view showing a welding process.
圖10是表示焊接工序的模式圖。 Fig. 10 is a schematic view showing a welding process.
圖11是表示焊接工序的模式圖。 Fig. 11 is a schematic view showing a welding process.
圖12是表示焊接工序的模式圖。 Fig. 12 is a schematic view showing a welding process.
圖13是表示焊接工序的模式圖。 Fig. 13 is a schematic view showing a welding process.
以下將參照附圖，對本發明的太陽能電池用帶狀導線焊接裝置的具體實施方式進行說明。附圖中，圖1是表示本發明具體實施方式中的太陽能電池用帶狀導線焊接裝置的整體正面圖；圖2(a)、圖2(b)、圖2(c)是表示本發明焊接裝置中預熱構件及保持(holding)構件的升降機構的說明圖；圖3(a)、圖3(b)是表示本發明焊接裝置中預熱構件及保持構件的說明圖；圖4(a)、圖4(b)是表示本發明焊接裝置中帶狀導線按壓構件的說明圖；圖5(a)、圖5(b)是表示本發明焊接裝置中焊劑(flux)塗佈構件的說明圖；圖6(a)、圖6(b)是表示太陽能電池單元 的說明圖；圖7是表示多個太陽能電池單元串聯後形成的電池串的平面圖；圖8是表示多個太陽能電池單元串聯後形成的電池串的側面圖；圖9至圖13是表示焊接工序的模式圖。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a specific embodiment of a strip conductor welding device for a solar cell of the present invention will be described with reference to the accompanying drawings. 1 is a front elevational view showing a strip wire bonding apparatus for a solar cell according to an embodiment of the present invention; and FIGS. 2(a), 2(b), and 2(c) are views showing welding of the present invention. FIG. 3(a) and FIG. 3(b) are explanatory views showing a preheating member and a holding member in the welding device of the present invention; FIG. 4(a); 4(b) is an explanatory view showing a strip conductor pressing member in the welding apparatus of the present invention; and FIGS. 5(a) and 5(b) are views showing a flux coating member in the welding apparatus of the present invention; Figure 6 (a), Figure 6 (b) shows the solar cell FIG. 7 is a plan view showing a battery string formed by connecting a plurality of solar battery cells in series; FIG. 8 is a side view showing a battery string formed by connecting a plurality of solar battery cells in series; and FIGS. 9 to 13 are views showing a welding process. Pattern diagram.
首先對藉由本發明太陽能電池單元的焊接裝置而製造的電池串(string)進行說明。 First, a battery string manufactured by the soldering apparatus of the solar battery cell of the present invention will be described.
太陽能電池具有如下的構成。如圖7及圖8所示，多個太陽能電池單元10藉由帶狀導線15連接後形成一列電池串W。多列電池串藉由帶狀導線連接後用封止材封閉、隨後上下兩面用玻璃等透明基板及PET樹脂等背面材包夾後、在真空加熱的狀態下藉由層疊加工來獲得太陽能電池。在製造這樣的太陽能電池時，使用了電池串。 The solar cell has the following constitution. As shown in FIGS. 7 and 8, a plurality of solar battery cells 10 are connected by a strip conductor 15 to form a row of battery strings W. The multi-row battery string is connected by a band-shaped wire, and then sealed with a sealing material, and then the upper and lower surfaces are covered with a transparent substrate such as glass or a backing material such as PET resin, and then subjected to lamination processing in a vacuum-heated state to obtain a solar cell. In the manufacture of such a solar cell, a battery string is used.
所述電池串是藉由焊接太陽能電池單元10及帶狀導線15使其連接獲得的。下面簡單說明焊接工序。太陽能電池單元10及帶狀導線15的連接，以如下方式進行：將預先塗佈了焊料的帶狀導線15重疊設置在太陽能電池單元上，加熱重疊部位進行焊接。 The battery string is obtained by soldering the solar cell unit 10 and the strip conductor 15 to connect them. The welding process will be briefly described below. The connection between the solar battery cell 10 and the strip conductor 15 is performed by superposing the strip conductors 15 coated with solder in advance on the solar battery cells, and heating the overlapping portions for welding.
圖7是表示多個太陽能電池單元10串狀設置在帶狀導線15上、從其表面電極連接側(以下稱為表面側)觀察時的平面圖。圖8是表示多個太陽能電池單元10串狀設置在帶狀導線15上、從其側面觀察時的側面圖。圖6(a)、圖6(b)是從表面側和背面側觀察太陽能電池單元10時的視圖。 FIG. 7 is a plan view showing a state in which a plurality of solar battery cells 10 are arranged in series on the strip conductor 15 and viewed from the surface electrode connection side (hereinafter referred to as a front side). Fig. 8 is a side view showing a state in which a plurality of solar battery cells 10 are arranged in series on a strip conductor 15 as viewed from a side surface thereof. 6(a) and 6(b) are views when the solar battery cells 10 are viewed from the front side and the back side.
在一個太陽能電池單元10上可以設置二列帶狀導線15、也可以設置三列帶狀導線15。在本具體實施方式的說明中， 在一個太陽能電池單元10上設置有二列帶狀導線15。然而，本發明的太陽能電池用帶狀導線焊接裝置，也可適用於在一個太陽能電池單元10上設置有三列帶狀導線15的情形。 Two rows of strip conductors 15 may be provided on one solar cell unit 10, or three rows of strip conductors 15 may be provided. In the description of the specific embodiment, Two rows of strip conductors 15 are disposed on one solar cell unit 10. However, the strip wire bonding apparatus for a solar cell of the present invention can also be applied to a case where three rows of strip conductors 15 are provided on one solar cell unit 10.
太陽能電池單元10被形成具有約0.16mm厚度的矩形平板形狀。如圖6(a)所示，本具體實施方式中，太陽能電池單元10的表面設置有2根表面連接電極11、其從太陽能電池單元10的一邊橫跨對邊。在太陽能電池單元10的表面還設置了多個指狀元件13、其和表面連接電極11垂直且從太陽能電池單元10的一邊橫跨對邊。如圖6(b)所示，太陽能電池單元10的背面設置有2根背面連接電極12、與表面連接電極11一樣，也從太陽能電池單元10的一邊橫跨對邊。在表面連接電極11和背面連接電極12的表面塗佈有焊料，以便與帶狀導線15進行焊接。以下，將表面連接電極11和背面連接電極12分別稱為匯流條11和匯流條12。 The solar cell unit 10 is formed into a rectangular flat plate shape having a thickness of about 0.16 mm. As shown in FIG. 6(a), in the present embodiment, the surface of the solar cell unit 10 is provided with two surface connection electrodes 11 which straddle the opposite side from one side of the solar cell unit 10. Also provided on the surface of the solar cell unit 10 are a plurality of finger elements 13 which are perpendicular to the surface connection electrode 11 and which straddle the opposite side from one side of the solar cell unit 10. As shown in FIG. 6(b), the back surface of the solar battery cell 10 is provided with two back surface connection electrodes 12, which are the same as the surface connection electrode 11, and also straddle the opposite side from one side of the solar battery cell 10. Solder is applied to the surfaces of the surface connection electrode 11 and the back surface connection electrode 12 to be soldered to the strip conductor 15. Hereinafter, the surface connection electrode 11 and the back surface connection electrode 12 are referred to as a bus bar 11 and a bus bar 12, respectively.
如圖7及圖8所示，帶狀導線15是具有約0.2mm厚度的長條平板形狀導線。帶狀導線15以銅製成，表面塗佈有焊料，以便與匯流條11及匯流條12進行焊接。 As shown in FIGS. 7 and 8, the strip conductor 15 is a strip-shaped flat wire having a thickness of about 0.2 mm. The strip conductor 15 is made of copper and is surface-coated with solder for soldering to the bus bar 11 and the bus bar 12.
如圖7及圖8所示，多個太陽能電池單元10串狀設置在帶狀導線15上後，藉由焊接製造電池串。具體地說，將多個太陽能電池單元10按規定間距設置後、帶狀導線15的一半(前側)重疊設置在太陽能電池單元10的匯流條11上，帶狀導線15的另一半(後側)重疊設置在相鄰太陽能電池單元10的匯流條12上。在本具體實施方式中，相鄰的太陽能電池單元10藉由2根帶狀導 線15得到連接，2根帶狀導線15之間的中心距離為D(參照圖7)。 As shown in FIGS. 7 and 8, after the plurality of solar battery cells 10 are arranged in series on the strip conductor 15, the battery string is manufactured by welding. Specifically, after the plurality of solar battery cells 10 are disposed at a predetermined pitch, half (front side) of the strip conductors 15 are overlapped and disposed on the bus bars 11 of the solar battery cells 10, and the other half (back side) of the strip conductors 15 The overlap is disposed on the bus bar 12 of the adjacent solar cell unit 10. In this embodiment, adjacent solar cells 10 are guided by two strips. The line 15 is connected, and the center distance between the two strip conductors 15 is D (refer to Fig. 7).
藉由焊接裝置100加熱並押壓設置成串狀的太陽能電池單元10及帶狀導線15的重疊部，塗佈在太陽能電池單元10的各匯流條及帶狀導線15表面的焊料熔融，從而電氣連接太陽能電池單元10及帶狀導線15。 The welding device 100 heats and presses the overlapping portions of the solar battery cells 10 and the strip conductors 15 arranged in a string shape, and the solder applied to the surfaces of the bus bars and the strip conductors 15 of the solar battery cells 10 is melted, thereby electrically The solar cell unit 10 and the strip conductor 15 are connected.
以下，對本發明的太陽能電池單元用帶狀導線的焊接裝置進行詳細說明。 Hereinafter, a welding device for a strip conductor for a solar battery cell of the present invention will be described in detail.
如圖1所示，太陽能電池用帶狀導線的焊接裝置的構成包括：用於堆積太陽能電池單元10的堆料器(stocker)ST、電池單元供給部(裝置)20、帶狀導線供給部30、焊劑塗佈部40、搬送部50、預熱部60、焊接部(保持構件)70、升降部80、帶狀導線按壓部90、帶狀導線加熱構件H、以及冷卻部C。這些構成要素設置在本發明裝置的基座101上。本發明裝置的構成也可以包括焊劑吸取部200、還可以包括焊劑回收裝置。 As shown in FIG. 1, the welding device for a strip conductor for a solar cell includes a stocker ST for stacking the solar battery cells 10, a battery unit supply unit (device) 20, and a strip conductor supply unit 30. The flux application unit 40, the conveyance unit 50, the preheating unit 60, the welded portion (holding member) 70, the elevating portion 80, the strip-shaped wire pressing portion 90, the strip-shaped wire heating member H, and the cooling portion C. These components are provided on the base 101 of the apparatus of the present invention. The configuration of the apparatus of the present invention may also include a flux suction portion 200, and may further include a flux recovery device.
下面對各構成要素進行簡單說明。首先，太陽能電池單元供給部20向搬送部50供給太陽能電池單元10。帶狀導線供給部30牽引矯正導線L後，在彎曲成形的同時切斷成規定長度、製成帶狀導線15並提供給焊接部70。此時，太陽能電池單元供給部20、帶狀導線供給部30以及搬送部50協調運作、如圖7及圖8所示設置並連接太陽能電池單元10及帶狀導線15。 Each component will be briefly described below. First, the solar battery cell supply unit 20 supplies the solar battery unit 10 to the transport unit 50. After the strip wire supply portion 30 pulls the correction wire L, it is cut into a predetermined length while being bent, and the strip conductor 15 is formed and supplied to the welded portion 70. At this time, the solar battery cell supply unit 20, the strip conductor supply unit 30, and the transport unit 50 operate in coordination, and the solar battery cells 10 and the strip conductors 15 are provided and connected as shown in FIGS. 7 and 8 .
搬送部50將處於定位固定(真空吸附)狀態的太陽能電池單元10及帶狀導線15從預熱部搬送到焊接部以及後續工序的 冷卻部C(相當於圖9到圖13中的冷卻部)。預熱部藉由後述臨時置板中內置的電加熱器或藉由熱風對焊接前的太陽能電池單元及其下方的帶狀導線進行預熱。焊接部藉由加熱構件H的熱風對要進行焊接的太陽能電池單元10及帶狀導線15的焊接部位進行加熱、藉由帶狀導線按壓部90的按壓部件進行按壓，進行焊接。冷卻部C對焊接後的太陽能電池單元10及帶狀導線15進行冷卻、使太陽能電池單元10及帶狀導線15的重疊部位固化。 The transport unit 50 transports the solar battery cells 10 and the strip conductors 15 in a fixed positioning (vacuum suction) state from the preheating section to the welding section and subsequent processes. Cooling unit C (corresponding to the cooling unit in FIGS. 9 to 13). The preheating section preheats the solar cell unit before welding and the strip conductor below it by an electric heater built in a temporary board to be described later or by hot air. The welded portion heats the welded portion of the solar battery cell 10 and the strip-shaped lead 15 to be welded by the hot air of the heating member H, and is pressed by the pressing member of the strip-shaped lead pressing portion 90 to perform welding. The cooling unit C cools the welded solar battery cells 10 and the strip conductors 15 to cure the overlapping portions of the solar battery cells 10 and the strip conductors 15.
根據本發明的焊接裝置100，上述各構成要素單獨或協調運作可高效率地進行太陽能電池單元10及帶狀導線15的焊接。以下對各構成要素的具體構成及處理運作進行詳細說明。 According to the welding apparatus 100 of the present invention, the above-described respective constituent elements can perform the welding of the solar battery cells 10 and the strip-shaped wires 15 efficiently or independently. The specific configuration and processing operation of each component will be described in detail below.
太陽能電池單元供給部20執行向搬送部50供給太陽能電池單元10的工序。 The solar battery cell supply unit 20 performs a process of supplying the solar battery cells 10 to the transport unit 50 .
如圖1所示，電池單元供給部(裝置)20向搬送部50供給太陽能電池單元。電池單元供給裝置20可將堆料器ST中重疊堆積的未被焊接的太陽能電池單元10提供給搬送部50。具體地說，機器人等被用作電池單元供給裝置20，機器人用手從堆料器逐一吸取太陽能電池單元10、並將其放置在搬送部50的搬送帶51的規定位置上。 As shown in FIG. 1, the battery unit supply unit (device) 20 supplies the solar battery unit to the transport unit 50. The battery unit supply device 20 can supply the unsoldered solar battery cells 10 stacked in the stacker ST to the transport unit 50. Specifically, a robot or the like is used as the battery unit supply device 20, and the robot sucks the solar battery cells 10 one by one from the stocker by hand and places them at a predetermined position of the conveyance belt 51 of the conveyance unit 50.
帶狀導線供給部30執行向搬送部50(焊接部70)供給牽引矯正、彎曲成形後、切斷成規定長度的帶狀導線15的工序。 The strip-line supply unit 30 performs a step of supplying the strip-shaped lead wire 15 of a predetermined length to the transport unit 50 (the welded portion 70) after the traction correction, the bending, and the bending.
帶狀導線供給部30中設置有帶狀導線載入裝置，其將彎曲成形、切斷成規定長度的帶狀導線15載入到設置在搬送帶51上、即將進行焊接的太陽能電池單元10上。本發明中，所述帶狀導線載入裝置沒有圖示。省略其詳細說明。 A strip-shaped wire loading device 30 is provided in the strip-shaped wire supply portion 30, and the strip-shaped wire 15 bent and cut into a predetermined length is loaded onto the solar battery cell 10 which is disposed on the conveyor belt 51 and is to be welded. . In the present invention, the strip wire loading device is not shown. The detailed description is omitted.
參照圖1，對焊接時使用的帶狀導線15的製作方法進行說明。帶狀導線卡盤36從巻筒32拉出導線L後、保持水平狀態。隨後，經夾具35夾持後，藉由卡盤36進行牽引矯正加工。從而將卷在巻筒32上的導線L矯正成筆直。其後，要進行切斷的導線L部分被置入彎曲形成部33的上模具和下模具中，彎曲成Z字形狀。 A method of manufacturing the strip conductor 15 used for soldering will be described with reference to Fig. 1 . The strip conductor chuck 36 is pulled horizontally from the cartridge 32 and maintained in a horizontal state. Subsequently, after being clamped by the jig 35, the traction correction processing is performed by the chuck 36. Thereby, the wire L wound on the cartridge 32 is corrected to be straight. Thereafter, the wire L portion to be cut is placed in the upper mold and the lower mold of the bending forming portion 33, and bent into a zigzag shape.
其後，彎曲成形後的帶狀導線被卡盤36的卡爪牽引到斷線位置附近，在夾具35夾持的狀態下，藉由刀具34切斷成規定長度。從而，製作出太陽能電池單元10焊接用帶狀導線15。 Thereafter, the strip-shaped wire that has been bent and formed is pulled by the claw of the chuck 36 to the vicinity of the disconnection position, and is cut by the cutter 34 to a predetermined length while being clamped by the jig 35. Thereby, the strip conductor 15 for welding the solar battery cell 10 is produced.
上述切斷成規定長度的焊接用帶狀導線15，由未圖示的帶狀導線載入裝置載入到圖1中預熱部之後的後續工序中的焊接部70所承載的太陽能電池單元10的匯流條11上。詳細承載狀態如圖3(a)、圖3(b)所示。 The solar battery unit 10 carried by the welded portion 70 which is cut into a predetermined length and which is loaded into the welding portion 70 in the subsequent step after the preheating portion in FIG. 1 is loaded by a strip-shaped wire loading device (not shown) On the bus bar 11. The detailed load state is shown in Fig. 3 (a) and Fig. 3 (b).
單元供給部中的從堆料器吸取來的太陽能電池單元10，在被 供給搬送部50之前、由焊劑塗佈部40給太陽能電池單元10的匯流條11部分和匯流條12部分塗佈防止焊接部位氧化的焊劑F。如圖5(a)、圖5(b)所示，焊劑塗佈部40分別在太陽能電池單元表面及背面兩側、以和圖7中的寬度D相同的間距設置了2個塗佈焊劑用的噴嘴41。圖5(a)是正面圖。圖5(b)是從太陽能電池單元的移動方向觀察圖5(a)裝置時的側面圖。本具體實施方式中，在塗佈作業時，噴嘴41是固定的。如圖5(a)所示，電池單元供給裝置20移動太陽能電池單元，噴嘴41在太陽能電池單元的規定部位所塗佈焊劑F。塗佈作業結束後，噴嘴41移開(例如沿圖5(b)中箭頭方向)，避免阻礙向搬送部50上載入太陽能電池單元時的移動作業。 The solar battery unit 10 sucked from the stocker in the unit supply unit is being Before the supply unit 50 is supplied, the flux coating unit 40 applies a flux F for preventing the oxidation of the welded portion to the bus bar 11 portion of the solar battery cell 10 and the bus bar 12 portion. As shown in Fig. 5 (a) and Fig. 5 (b), the flux application portion 40 is provided with two coating fluxes on the surface and the back surface of the solar battery cell at the same pitch as the width D in Fig. 7 . Nozzle 41. Figure 5 (a) is a front view. Fig. 5 (b) is a side view of the apparatus of Fig. 5 (a) as seen from the moving direction of the solar battery cell. In the present embodiment, the nozzle 41 is fixed during the coating operation. As shown in FIG. 5(a), the battery cell supply device 20 moves the solar battery cell, and the nozzle 41 applies the flux F to a predetermined portion of the solar battery cell. After the coating operation is completed, the nozzle 41 is removed (for example, in the direction of the arrow in FIG. 5(b)), and the movement operation when the solar battery unit is loaded onto the conveying unit 50 is prevented from being hindered.
搬送部50執行對配置成串狀的太陽能電池單元10及帶狀導線15進行定位、同時間斷性地將其搬送給預熱部60、焊接部70及冷卻部C的工序。 The transport unit 50 performs a process of positioning the solar battery cells 10 and the strip conductors 15 arranged in a line, and intermittently transporting them to the preheating unit 60, the welded portion 70, and the cooling unit C.
如圖1所示，搬送部50包括搬送帶51、搬送滾柱55a和55b、以及吸附裝置56等。搬送帶51卷裝在預熱部60的鄰近位置設置的搬送滾柱55a及冷卻部C的鄰近位置設置的搬送滾柱55b上。搬送帶51是一條薄平板狀的帶子。藉由和搬送滾柱55a和55b的旋轉軸連接的未圖示滾柱驅動裝置的驅動，搬送滾柱55a，55b分別沿箭頭符號方向轉動。藉由各搬送滾柱55a，55b的轉動，搬 送帶51的搬送面52上承載的太陽能電池單元10被按順序搬送到預熱部60、焊接部70及冷卻部C。進行焊接的帶狀導線，被焊接到太陽能電池單元上，與太陽能電池單元同時被搬送。 As shown in FIG. 1, the conveyance unit 50 includes a conveyance belt 51, conveyance rollers 55a and 55b, an adsorption device 56, and the like. The conveyance belt 51 is wound up on the conveyance roller 55a provided in the vicinity of the preheating part 60, and the conveyance roller 55b provided in the vicinity of the cooling part C. The conveyor belt 51 is a thin flat belt. The conveyance rollers 55a and 55b are respectively rotated in the direction of the arrow symbol by the driving of the roller drive unit (not shown) connected to the rotation shafts of the conveyance rollers 55a and 55b. By the rotation of each of the transport rollers 55a, 55b, The solar battery cells 10 carried on the conveying surface 52 of the feeding belt 51 are sequentially conveyed to the preheating unit 60, the welded portion 70, and the cooling portion C. The strip conductor to be welded is soldered to the solar cell unit and transported simultaneously with the solar cell unit.
吸附裝置56設置在搬送帶51的搬送面52的下方、沿搬送帶51的較長方向延伸。吸附裝置56將搬送面52上承載的太陽能電池單元10及帶狀導線15吸附在搬送帶51上進行定位。 The adsorption device 56 is provided below the conveyance surface 52 of the conveyance belt 51 and extends in the longitudinal direction of the conveyance belt 51. The adsorption device 56 adsorbs the solar battery cells 10 and the strip conductors 15 carried on the conveying surface 52 to the conveyor belt 51 for positioning.
如圖3(a)、圖3(b)所示，本具體實施方式中的搬送帶51被設置成2列。吸附裝置56也被設置成2列。在搬送帶51上，沿圓周方向連續形成有多個未圖示的電池單元吸附孔。吸附裝置56真空吸附太陽能電池單元的寬度方向上兩端附近，以規定間距間歇搬送太陽能電池單元。 As shown in Fig. 3 (a) and Fig. 3 (b), the conveying belt 51 in the present embodiment is provided in two rows. The adsorption device 56 is also arranged in two columns. On the conveyor belt 51, a plurality of battery cell adsorption holes (not shown) are continuously formed in the circumferential direction. The adsorption device 56 vacuum-adsorbs the vicinity of both ends in the width direction of the solar battery cell, and intermittently transports the solar battery cells at a predetermined pitch.
預熱部60執行對藉由電池單元供給裝置20在搬送部50的規定位置上承載的太陽能電池單元10以及藉由帶狀導線載入裝置承載的帶狀導線15進行預熱的工序。圖3(a)、圖3(b)是預熱部60的說明圖。圖3(a)是其平面圖，圖3(b)是其側面圖。如圖3(a)、圖3(b)所示，預熱部60中設置有臨時置板61。在臨時置板61下方，設置有內置了電加熱器的加熱板63，用於對將要在焊接部進行焊接的太陽能電池單元及帶狀導線(圖9X部分)進行預熱。另外，在臨時置板中，以與太陽能電池單元的匯流條相同間隔D、設置了用於容納帶狀導線15的溝62。所述溝62是錐形 狀的，其寬度沿太陽能電池單元的搬送方向逐漸變窄。收容在錐形溝中的帶狀導線，與在其上部承載的太陽能電池單元一起移動，被搬送到焊接部，不發生位置偏差。 The preheating unit 60 performs a process of preheating the solar battery cells 10 carried by the battery unit supply device 20 at predetermined positions of the conveying unit 50 and the strip conductors 15 carried by the strip wire loading device. 3(a) and 3(b) are explanatory views of the preheating unit 60. Fig. 3(a) is a plan view thereof, and Fig. 3(b) is a side view thereof. As shown in FIGS. 3(a) and 3(b), the preheating portion 60 is provided with a temporary plate 61. Below the temporary plate 61, a heating plate 63 having an electric heater built therein is provided for preheating the solar battery cells and the ribbon wires (portion of Fig. 9X) to be welded at the welded portion. Further, in the temporary plate, the groove 62 for accommodating the strip conductor 15 is provided at the same interval D from the bus bar of the solar battery cell. The groove 62 is tapered In the shape of the solar cell, the width thereof is gradually narrowed. The strip-shaped wire housed in the tapered groove moves together with the solar cell unit carried on the upper portion thereof, and is transported to the welded portion without occurrence of positional deviation.
臨時置板61處於下降狀態待機。焊接部進行焊接時，圖2(a)、圖2(b)、圖2(c)的升降部80使其與焊接部的保持板71一起上升。 The temporary setting plate 61 is in a descending state standby. When the welded portion is welded, the lifting portion 80 of Figs. 2(a), 2(b), and 2(c) is raised together with the holding plate 71 of the welded portion.
根據圖3(a)、圖3(b)對焊接部70進行說明。焊接部70設置在預熱部60的旁邊。焊接部70，與預熱部60聯動，將太陽能電池單元10及帶狀導線15保持在保持板71上的規定位置、進行焊接。進行焊接時，圖2(a)、圖2(b)、圖2(c)的升降部80使臨時置板和保持板同時上升，在上方待機的帶狀導線按壓部90下降、夾持太陽能電池單元及帶狀導線，同時在上方待機的加熱構件H也下降，加熱焊接部進行焊接。 The welded portion 70 will be described with reference to Figs. 3(a) and 3(b). The welded portion 70 is disposed beside the preheating portion 60. The welded portion 70 is moved in conjunction with the preheating portion 60 to hold the solar battery cell 10 and the strip conductor 15 at predetermined positions on the holding plate 71. When the welding is performed, the elevating portion 80 of Fig. 2 (a), Fig. 2 (b), and Fig. 2 (c) simultaneously raises the temporary plate and the holding plate, and the strip-shaped wire pressing portion 90 that stands on the upper side descends and holds the solar energy. The battery unit and the strip conductor are simultaneously lowered in the heating member H that is standing on the upper side, and the welded portion is heated to perform welding.
焊接部70的保持板71是陶瓷材質的多孔體。保持板71設置在真空吸附裝置的真空室72的上方。對真空室抽真空時，保持板71的表面全部被抽成真空，進行焊接中的太陽能電池單元及帶狀導線被吸附在保持板上。因此，即使在焊接中用熱風加熱太陽能電池單元，太陽能電池單元也不會從保持板上漂浮起來。從而可在正確的位置確實地進行焊接。焊接結束後，保持板和臨時置板根據圖2(a)、圖2(b)、圖2(c)中升降部80的運動而下 降。焊接後的太陽能電池，藉由真空吸附承載在搬送帶51上，被搬送部50以規定間隔進行搬送。 The holding plate 71 of the welded portion 70 is a porous body made of ceramic material. The holding plate 71 is disposed above the vacuum chamber 72 of the vacuum adsorption device. When the vacuum chamber is evacuated, the surface of the holding plate 71 is entirely evacuated, and the solar battery cells and the strip conductors being welded are adsorbed on the holding plate. Therefore, even if the solar battery unit is heated by hot air during welding, the solar battery unit does not float from the holding plate. Thereby the welding can be carried out reliably at the correct position. After the welding is completed, the holding plate and the temporary plate are lowered according to the movement of the lifting portion 80 in Figs. 2(a), 2(b), and 2(c). drop. The soldered solar cells are carried by the vacuum suction on the transport belt 51, and are transported by the transport unit 50 at predetermined intervals.
在進行焊接時，升降部80使承載在預熱部60和焊接部70上的太陽能電池單元及帶狀導線上升；焊接結束後，升降部80使太陽能電池單元及帶狀導線下降。升降部80設置在預熱部和焊接部的下方。其構成根據圖2(a)、圖2(b)、圖2(c)進行說明。圖2(a)是從與搬送方向呈直角的方向觀察時的正面圖，圖2(b)是從搬送方向觀察圖2(a)中裝置時的側面圖。圖2(c)是圖2(b)的Y部放大圖。將氣缸A的進退動作轉換為升降動作，從而使臨時置板61及加熱板63、焊接部的保持板71及承載真空室72的上部板810上升或下降。 At the time of welding, the elevating portion 80 raises the solar battery cells and the strip conductors carried on the preheating portion 60 and the welded portion 70. After the welding is completed, the elevating portion 80 lowers the solar battery cells and the strip conductors. The lifting portion 80 is disposed below the preheating portion and the welded portion. The configuration will be described with reference to Figs. 2(a), 2(b) and 2(c). Fig. 2 (a) is a front view when viewed from a direction perpendicular to the conveyance direction, and Fig. 2 (b) is a side view when the device of Fig. 2 (a) is viewed from a conveyance direction. Fig. 2(c) is an enlarged view of a Y portion of Fig. 2(b). The advancing and retracting operation of the cylinder A is converted into the elevating operation, and the temporary plate 61 and the heating plate 63, the holding plate 71 of the welded portion, and the upper plate 810 carrying the vacuum chamber 72 are raised or lowered.
升降部的上部板810是藉由安裝板820的介裝進行設置的。安裝板820藉由基座板830及塊部件831安裝在本裝置的基座101上。塊部件831設置在安裝板820和基座板830之間，用於調整高度。上部板810藉由設置在安裝板820上的導向杆821與設置在上部板810上的導向塊811的導向進行升降。本具體實施方式中，分別設置了4組導向杆和導向塊。 The upper plate 810 of the lifting portion is provided by the mounting of the mounting plate 820. The mounting plate 820 is mounted on the base 101 of the device by a base plate 830 and a block member 831. The block member 831 is disposed between the mounting plate 820 and the base plate 830 for adjusting the height. The upper plate 810 is lifted and lowered by the guide rods 821 provided on the mounting plate 820 and the guide blocks 811 provided on the upper plate 810. In this embodiment, four sets of guide bars and guide blocks are respectively provided.
安裝板820上設置了2個保持體822，用於保持旋轉軸823。在旋轉軸823的兩端，分別偏心設置了滾柱軸承824。滾柱軸承824以偏心量E和旋轉軸的中心軸偏心。旋轉軸還設置有齒 輪825。齒輪825與導軌R相嚙合，所述導軌R和氣缸A頂端的支杆相連。導軌R和齒輪相嚙合得到保持，隨氣缸的進退動作而前進或後退。上部板810的下表面設置有2個塊部件812，塊部件812中設置有溝K，溝K的寬度與滾柱軸承824的直徑大體相等(圖2(c)參照)。旋轉軸823的兩端的滾柱軸承824嵌入在溝K內。升降部80的構成如上所述。 Two holding bodies 822 are provided on the mounting plate 820 for holding the rotating shaft 823. At both ends of the rotating shaft 823, roller bearings 824 are eccentrically disposed, respectively. The roller bearing 824 is eccentric with the eccentric amount E and the central axis of the rotating shaft. The rotating shaft is also provided with teeth Wheel 825. The gear 825 is meshed with a guide rail R that is coupled to a strut at the top end of the cylinder A. The guide rail R and the gear are meshed and held, and advance or retreat as the cylinder advances and retracts. The lower surface of the upper plate 810 is provided with two block members 812, and the block member 812 is provided with a groove K, and the width of the groove K is substantially equal to the diameter of the roller bearing 824 (refer to Fig. 2(c)). Roller bearings 824 at both ends of the rotating shaft 823 are embedded in the groove K. The configuration of the lifting portion 80 is as described above.
升降部80進行如下的動作：導軌R隨氣缸A的進退動作而進退，與導軌R相嚙合的齒輪825旋轉，從而使旋轉軸823旋轉；由於旋轉軸823兩端的滾柱軸承824是和旋轉軸偏心設置的，因此滾柱軸承824以偏心量E的2倍衝程上升或下降。由於升降部具有這樣的構成，因此無論上升端或下降端，其上升速度或下降速度都是零，停止時不會有衝擊，從而不會導致吸附在焊接部的保持板71上的太陽能電池單元及帶狀導線產生位置偏差。因此，可在規定位置對太陽能電池單元及帶狀導線進行焊接。另外，滾柱軸承824也可以是具有偏心量E的凸輪狀物體。 The lifting portion 80 performs an operation in which the guide rail R advances and retreats in accordance with the forward and backward movement of the cylinder A, and the gear 825 that meshes with the guide rail R rotates to rotate the rotating shaft 823; since the roller bearing 824 at both ends of the rotating shaft 823 is the rotating shaft It is eccentrically set, so the roller bearing 824 is raised or lowered by a stroke of eccentricity E twice. Since the lifting portion has such a configuration, the rising speed or the descending speed is zero regardless of the rising end or the falling end, and there is no impact at the time of stopping, so that the solar battery cells adsorbed on the holding plate 71 of the welded portion are not caused. And the strip conductor produces a positional deviation. Therefore, the solar cell unit and the strip conductor can be soldered at a predetermined position. Further, the roller bearing 824 may be a cam-like object having an eccentric amount E.
如圖1所示，帶狀導線按壓部90設置成：可以在直立安裝在本裝置的基座101上的支架(stand)SD上進行升降。帶狀導線按壓部90在焊接部70上方待機，焊接時下降，按壓部件93的頂端的押壓器94與保持板71一同夾持承載在焊接部的太陽能電池單元及帶狀導線，藉由加熱構件H加熱進行焊接。釺焊結束後，帶 狀導線按壓部90和加熱構件H上升，以便不影響焊接後的太陽能電池單元的移動及帶狀導線的供給。 As shown in Fig. 1, the strip-shaped wire pressing portion 90 is provided so as to be lifted and lowered on a stand SD which is mounted upright on the base 101 of the apparatus. The strip-shaped lead wire pressing portion 90 stands by above the soldering portion 70 and is lowered during soldering, and the pad 94 of the tip end of the pressing member 93 and the holding plate 71 sandwich the solar cell unit and the strip-shaped wire carried by the soldering portion by heating The member H is heated for welding. After the end of the welding The wire pressing portion 90 and the heating member H are raised so as not to affect the movement of the solar battery cells after welding and the supply of the ribbon wires.
如圖4(a)所示，按壓部90的按壓部本體91中設置有多個貫通孔。貫通孔中分別插有套筒92。所述套筒內插有按壓部件93。按壓部件93上設置有用於定位的鍔，從而在交換時各按壓部件的長度大致相同。按壓部件內置有彈簧，押壓器94頂端設計成能和帶狀導線均一接觸的構成。如圖4(b)所示，帶狀導線按壓部的押壓器94按壓帶狀導線中的焊接部分。雖然在圖1、圖4(a)、圖4(b)等中，按壓部件93的數量是6個；但可以根據太陽能電池單元及帶狀導線的尺寸進行適當變更。 As shown in FIG. 4( a ), a plurality of through holes are provided in the pressing portion main body 91 of the pressing portion 90 . A sleeve 92 is inserted into each of the through holes. A pressing member 93 is inserted into the sleeve. The pressing member 93 is provided with a weir for positioning so that the lengths of the pressing members are substantially the same at the time of exchange. The pressing member has a built-in spring, and the top end of the pressing device 94 is designed to be in uniform contact with the strip conductor. As shown in Fig. 4 (b), the pin presser 94 of the strip-shaped wire pressing portion presses the welded portion in the strip-shaped wire. In FIG. 1, FIG. 4(a), FIG. 4(b) and the like, the number of the pressing members 93 is six, but it can be appropriately changed depending on the size of the solar battery cells and the strip conductors.
加熱構件H，例如可使用熱風加熱器和紅外燈等。如圖1所示，加熱構件設置成：可以在直立安裝在本裝置的基座101上的支架SD上進行升降。加熱構件在焊接部70上方待機，焊接時下降，藉由向焊接部吹熱風等、將焊接部加熱到焊料溶融溫度以上。針焊結束後上升，以便不影響焊接後的太陽能電池單元的移動及帶狀導線的供給。 As the heating member H, for example, a hot air heater, an infrared lamp, or the like can be used. As shown in Fig. 1, the heating member is arranged to be lifted and lowered on a bracket SD that is mounted upright on the base 101 of the apparatus. The heating member stands by above the welded portion 70, and is lowered during welding, and the welded portion is heated to a temperature higher than the solder melting temperature by blowing hot air or the like to the welded portion. After the end of the needle welding, it rises so as not to affect the movement of the solar cell after welding and the supply of the strip conductor.
冷卻部C執行將焊接後的太陽能電池單元10及帶狀導線15進行冷卻的工序。如圖3(a)、圖3(b)所示，冷卻部C包括未 圖示的冷卻裝置。冷卻裝置向從焊接部70間歇搬送來的太陽能電池單元10及帶狀導線15吹冷風進行冷卻。冷卻裝置也可以設計成吹室溫的空氣而不是冷風，還可以設計成吹0℃以下的冷風。 The cooling unit C performs a process of cooling the welded solar battery cells 10 and the strip conductors 15. As shown in FIG. 3(a) and FIG. 3(b), the cooling unit C includes The cooling device shown. The cooling device cools the solar battery cells 10 and the strip conductors 15 intermittently conveyed from the welded portion 70 by blowing cold air. The cooling device can also be designed to blow room temperature air instead of cold air, and can also be designed to blow cold air below 0 °C.
在圖1所示的本發明的焊接裝置100的構成要素中，帶狀導線供給部30、焊劑塗佈部40、搬送部50、預熱部60、焊接部(保持構件)70、帶狀導線按壓部90、以及帶狀導線加熱構件H，被設置在本裝置的基座101上的透明罩102所覆蓋。在焊接時，塗佈的焊劑會透明罩102內飛散、漂浮。飛散、漂浮的焊劑會附著在透明罩內側，影響透明罩的透明度，降低裝置維護性能。為了防止這種情況的發生，設置了焊劑的吸取部200。在本裝置的透明罩102上部設置了集塵罩201，其藉由管道202與吸取部200連接。從而可以吸取去除焊接中飛散、漂浮在透明罩內的焊劑。 In the components of the welding apparatus 100 of the present invention shown in FIG. 1, the strip wire supply unit 30, the flux application unit 40, the conveying unit 50, the preheating unit 60, the welded portion (holding member) 70, and the strip conductor The pressing portion 90 and the strip-shaped wire heating member H are covered by a transparent cover 102 provided on the base 101 of the device. At the time of soldering, the applied flux scatters and floats in the transparent cover 102. The scattered, floating flux adheres to the inside of the transparent cover, affecting the transparency of the transparent cover and reducing the maintenance performance of the device. In order to prevent this from happening, the suction portion 200 of the flux is provided. A dust collecting cover 201 is provided on the upper portion of the transparent cover 102 of the apparatus, and is connected to the suction portion 200 by a pipe 202. Therefore, the flux scattered in the solder and floating in the transparent cover can be removed.
焊劑吸取部不僅可以設計成具有吸取功能，還可以在焊劑吸取部200內置高性能微粒子過濾器等、將焊劑固化在過濾器上，從而可以再利用固化了的焊劑。 The flux suction portion can be designed not only to have a suction function, but also to embed a high-performance fine particle filter or the like in the flux suction portion 200 to cure the flux on the filter, so that the cured flux can be reused.
以上對本發明的焊接裝置100各部分進行了說明。下面對焊接工序進行說明。 Each part of the welding apparatus 100 of the present invention has been described above. The welding process will be described below.
圖9至圖13是表示焊接工序的模式圖。根據圖9至圖13對 利用太陽能電池的焊接裝置進行帶狀導線焊接的工序進行說明。圖9表示太陽能電池單元10B、帶狀導線15A(下方)以及帶狀導線15B(上方)在焊接部70完成焊接的狀態。在焊接部70旁邊的焊接後的太陽能電池單元10A、帶狀導線15A(上方)以及帶狀導線(下方)被間歇地搬送到冷卻部C進行冷卻。此時，預熱部60的臨時置板61的帶狀導線收容溝62中，已經插入有焊接在太陽能電池單元10B的上表面的帶狀導線15B之後的、與將要被焊接的太陽能電池單元的下表面相連的部分(X部)。如圖10所示，電池單元供給裝置將太陽能電池單元10C放置在預熱部60的規定位置。此時，太陽能電池單元10C的匯流條12的位置與帶狀導線15B位置相對。 9 to 13 are schematic views showing a welding process. According to Figure 9 to Figure 13 The process of welding the strip conductor by the welding device of the solar cell will be described. FIG. 9 shows a state in which the solar cell unit 10B, the strip conductor 15A (bottom), and the strip conductor 15B (upper) are welded at the welded portion 70. The welded solar battery cell 10A, the strip conductor 15A (upper), and the strip conductor (lower) next to the welded portion 70 are intermittently transported to the cooling portion C for cooling. At this time, in the strip-shaped wire accommodating groove 62 of the temporary plate 61 of the preheating portion 60, the solar battery cell to be soldered after the strip-shaped wire 15B welded to the upper surface of the solar battery cell 10B has been inserted. The part connected to the lower surface (X part). As shown in FIG. 10, the battery unit supply device places the solar battery cell 10C at a predetermined position of the preheating unit 60. At this time, the position of the bus bar 12 of the solar battery cell 10C is opposite to the position of the strip conductor 15B.
隨後，如圖11所示，預熱部60中的太陽能電池單元10C被吸附裝置吸附後、藉由搬送帶51按規定間隔搬送到焊接部70。接著，如圖12所示，藉由帶狀導線載入裝置將2根帶狀導線15C放置在太陽能電池單元的匯流條11上。其後，如圖13所示，太陽能電池單元10C、帶狀導線15C以及帶狀導線15B被上升了的保持板71和下降了的按壓在部件93頂端的押壓器94夾持、按壓，加熱構件H向焊接部70吹熱風的同時，進行焊接。焊接結束後，保持板71和臨時置板61下降，按壓部件93和加熱構件上升，回復到圖9的狀態。 Subsequently, as shown in FIG. 11, the solar battery cells 10C in the preheating unit 60 are adsorbed by the adsorption device, and then transported to the welded portion 70 at predetermined intervals by the conveyance belt 51. Next, as shown in Fig. 12, two strip-shaped wires 15C are placed on the bus bar 11 of the solar battery cell by a ribbon wire loading device. Thereafter, as shown in FIG. 13, the solar battery cell 10C, the strip conductor 15C, and the strip conductor 15B are held by the holding plate 71 that has been raised, and the depressed presser 94 that is pressed against the tip end of the member 93 is pressed and pressed. The member H is welded while blowing hot air to the welded portion 70. After the welding is completed, the holding plate 71 and the temporary placing plate 61 are lowered, and the pressing member 93 and the heating member are raised to return to the state of FIG.
重複執行根據圖9至圖13說明的工序、將帶狀導線15焊接到太陽能電池單元10上。太陽能電池單元10表面是正極， 背面是負極。這樣配置太陽能電池單元及帶狀導線後、再進行焊接，可將太陽能電池單元串聯連接製成電池串W。 The strip conductor 15 is soldered to the solar cell unit 10 by repeating the steps described with reference to FIGS. 9 to 13. The surface of the solar cell unit 10 is a positive electrode. The back side is the negative electrode. After the solar battery cells and the strip conductors are arranged in this manner and then soldered, the solar battery cells can be connected in series to form the battery string W.
根據上述焊接裝置100，因為可在短時間內對太陽能電池單元10及帶狀導線15進行焊接，從而可以提高生產效率。根據上述的焊接裝置100，因為可準確定位太陽能電池單元10及帶狀導線15進行焊接，從而可以大幅度提高成品率。 According to the welding device 100 described above, since the solar battery cells 10 and the strip conductors 15 can be welded in a short time, the production efficiency can be improved. According to the welding apparatus 100 described above, since the solar battery cell 10 and the strip conductor 15 can be accurately positioned for welding, the yield can be greatly improved.
10‧‧‧太陽能電池單元 10‧‧‧Solar battery unit
20‧‧‧電池單元供給裝置 20‧‧‧Battery unit supply unit
30‧‧‧帶狀導線供給部 30‧‧‧Strip wire supply department
32‧‧‧供給巻筒 32‧‧‧Supply cylinder
33‧‧‧彎曲成形部 33‧‧‧Bending forming department
34‧‧‧切斷部 34‧‧‧cutting department
35、36‧‧‧卡盤部 35, 36‧‧‧ chuck department
40‧‧‧焊劑塗佈部 40‧‧‧Solder Coating Department
41‧‧‧噴嘴 41‧‧‧Nozzles
50‧‧‧搬送部 50‧‧‧Transportation Department
52‧‧‧搬送面 52‧‧‧Transfer surface
55a、55b‧‧‧搬送滾柱 55a, 55b‧‧‧Transfer roller
56‧‧‧吸附裝置 56‧‧‧Adsorption device
60‧‧‧予熱部 60‧‧‧Preheating Department
70‧‧‧焊接部 70‧‧‧Welding Department
80‧‧‧升降部 80‧‧‧ Lifting Department
90‧‧‧帶狀導線按壓部 90‧‧‧Strip wire pressing
100‧‧‧焊接裝置 100‧‧‧ welding equipment
101‧‧‧基座 101‧‧‧Base
102‧‧‧透明罩 102‧‧‧Transparent cover
200‧‧‧焊劑吸取部 200‧‧‧Feel suction department
201‧‧‧集塵罩 201‧‧‧ dust cover
202‧‧‧管道 202‧‧‧ Pipes
H‧‧‧加熱構件 H‧‧‧heating components
L‧‧‧導線 L‧‧‧ wire
SD‧‧‧支架 SD‧‧‧ bracket
ST‧‧‧堆料器 ST‧‧‧Stacker
Claims (7)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011290206A JP2013139044A (en) | 2011-12-29 | 2011-12-29 | Soldering device of tab lead for solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201343307A true TW201343307A (en) | 2013-11-01 |
Family
ID=48674158
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101150802A TW201343307A (en) | 2011-12-29 | 2012-12-28 | Soldering apparatus of photovoltaic devices tab leads |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2013139044A (en) |
| KR (1) | KR20130077794A (en) |
| CN (2) | CN203330548U (en) |
| TW (1) | TW201343307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI622449B (en) * | 2015-08-26 | 2018-05-01 | 杰宜斯科技有限公司 | Flux application apparatus of tabbing apparatus |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752554B (en) * | 2013-12-31 | 2018-03-13 | 比亚迪股份有限公司 | A kind of preparation method of back electrode of solar cell |
| KR102176210B1 (en) * | 2014-07-15 | 2020-11-10 | 주식회사 제우스 | Tabbing apparatus |
| KR102200988B1 (en) * | 2014-07-15 | 2021-01-12 | 주식회사 제우스 | Tabbing apparatus and controling method thereof |
| CN104439598B (en) * | 2014-12-05 | 2016-04-13 | 乐清市浙佳电子科技有限公司 | A kind of automatic infiltration welding machine and immersed solder method |
| CN106624242A (en) * | 2017-03-04 | 2017-05-10 | 常州亿晶光电科技有限公司 | Welding system for serially welding solar cells |
| CN106903389A (en) * | 2017-03-04 | 2017-06-30 | 常州亿晶光电科技有限公司 | A kind of solar battery sheet series welding method |
| CN107195719B (en) * | 2017-07-03 | 2024-03-08 | 滁州隆基乐叶光伏科技有限公司 | Production equipment of shingled solar photovoltaic module |
| JP2019140335A (en) * | 2018-02-15 | 2019-08-22 | 三菱電機株式会社 | Solar cell module manufacturing apparatus and solar cell module manufacturing method |
| CN108555410A (en) * | 2018-02-28 | 2018-09-21 | 君泰创新（北京）科技有限公司 | Solar cell series welding mechanism |
| CN109434464A (en) * | 2018-10-29 | 2019-03-08 | 四川曦鸿电子科技有限公司 | A kind of automation capacitor lead wire apparatus for welding and positioning |
| CN109434332B (en) * | 2018-12-05 | 2023-12-01 | 宁夏小牛自动化设备股份有限公司 | Accurate busbar joining device, busbar joining preparation device, welding machine and ribbon joining method |
| CN109366031A (en) * | 2018-12-07 | 2019-02-22 | 无锡先导智能装备股份有限公司 | Welder and busbar are welding integrated |
| KR102457009B1 (en) * | 2020-02-18 | 2022-10-24 | 한국전자기술연구원 | Tabbing method of solar cell |
| CN112349627B (en) * | 2020-09-30 | 2023-09-29 | 金寨嘉悦新能源科技有限公司 | Solar monocrystalline silicon battery's battery piece welding set |
| CN114799401B (en) * | 2022-06-23 | 2022-09-16 | 苏州小牛自动化设备有限公司 | Series welding machine for processing semiconductor battery piece |
-
2011
- 2011-12-29 JP JP2011290206A patent/JP2013139044A/en not_active Withdrawn
-
2012
- 2012-12-27 KR KR1020120155175A patent/KR20130077794A/en not_active Application Discontinuation
- 2012-12-28 CN CN2012207456596U patent/CN203330548U/en not_active Expired - Fee Related
- 2012-12-28 CN CN2012105852579A patent/CN103182580A/en active Pending
- 2012-12-28 TW TW101150802A patent/TW201343307A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI622449B (en) * | 2015-08-26 | 2018-05-01 | 杰宜斯科技有限公司 | Flux application apparatus of tabbing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130077794A (en) | 2013-07-09 |
| CN203330548U (en) | 2013-12-11 |
| CN103182580A (en) | 2013-07-03 |
| JP2013139044A (en) | 2013-07-18 |
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