JP4969470B2 - Manufacturing method of solar cell module - Google Patents

Description

  The present invention relates to a method for manufacturing a solar cell module.

  In many cases, a solar cell element is manufactured using a single crystal silicon substrate or a polycrystalline silicon substrate, and since one solar cell element has a small electric output, a plurality of solar cell elements are electrically connected in series or in parallel. By connecting to, a solar cell module is produced.

  The electrical connection of the plurality of solar cell elements is performed by sequentially repeating the connection of one end of the connection conductor to the electrode of the solar cell element and the connection of the other end to the electrode of another adjacent solar cell element. Has been done.

Generally, the connection conductor is connected to the solar cell element by soldering the connection conductor to the electrode of the solar cell element (see, for example, Patent Document 1).
This soldering is performed as follows, for example.

First, the connection conductor for connecting to the lower surface side electrode of a solar cell element is arrange | positioned on a work table, and a solar cell element is mounted on it. And while attracting | sucking a solar cell element to the work-table side, by supplying a hot air from the upper surface side, the solder which exists between a lower surface side electrode and a connection conductor is melted, and soldering is performed.
JP 2006-278695 A

  However, if the configuration is such that the solar cell element is simply attracted to the workbench as described above, the connection conductor on the lower surface side moves due to the attraction force, and the positional relationship is shifted with respect to the lower surface side electrode of the solar cell element. When both are connected as they are, there is a problem that the position shift portion becomes a resistance to the output current and the output of the solar cell module is lowered.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a method for manufacturing a highly reliable solar cell module that can stably connect an electrode of a solar cell element and a connection conductor. To do.

In the method for manufacturing a solar cell module according to the present invention, a step of preparing a workbench having a suction part and a groove part located beside the suction part, and a first connection conductor on the workbench, A step of placing the suction part, the groove part, and the first connection conductor in this order so as to be arranged beside the groove part; and a solar cell element having a first electrode on the workbench, A step of covering the suction part, a part of the groove part and one end part of the first connection conductor, and placing the first electrode in contact with the first connection conductor; and the solar cell A step of sucking an element by the suction portion; and a step of connecting the first electrode and the first connection conductor.

According to the manufacturing method of the solar cell module, it is possible to reduce that the suction force by the suction portion reaches the first connection conductor by the groove portion that communicates with the outside, and the first electrode, the first connection conductor, It is possible to effectively suppress the occurrence of misalignment between the two.

  Hereinafter, the manufacturing method of the solar cell module of this invention is demonstrated in detail using drawing.

(First embodiment)
≪Solar cell module≫
In the solar cell module according to the present invention, a plurality of solar cell elements 2 electrically connected from a metal connecting conductor 3 between a translucent substrate 1 and a back sheet 9 are roughly filled with a filler 7. , 8 and enclosed. In addition, below, what attached the frame 4 to the outer peripheral part may also be called a solar cell module.

  Each component will be specifically described with reference to FIG.

  FIG. 1 shows an example of a solar cell module formed by using the method for manufacturing a solar cell module of the present invention, and (a) is a light receiving surface side plane of one solar cell element constituting the solar cell module. FIG. 4B is a plan view of the light-receiving surface side of the solar cell module, and FIG. 5C is an exploded cross-sectional view of the solar cell module.

  The solar cell element 2 has a structure as shown in FIG. 1A, and is made of, for example, single crystal silicon or polycrystalline silicon having a thickness of about 0.2 to 0.4 mm and a size of about 150 to 160 mm square. Yes. Inside the solar cell element 2, a PN junction (not shown) is formed in which a P layer containing a large amount of P-type impurities such as boron and an N layer containing a large amount of N-type impurities such as phosphorus are in contact. .

  The bus bar electrode 5 and the finger electrode 6 are formed by screen printing a conductive paste such as a silver paste. The finger electrodes 6 have a width of about 0.1 to 0.2 mm, and a large number of finger electrodes 6 are formed at intervals of about 2 to 4 mm in parallel with the sides of the solar cell element 2 in order to collect photogenerated carriers. The bus bar electrodes 5 collect about the collected optical carriers and have a width of about 1 to 3 mm for attaching the connection conductors, and are formed about 2 to 3 so as to intersect the finger electrodes 6 perpendicularly. In order to easily attach the protection and connection conductor to the surface of the bus bar electrode 5, solder coating may be performed over almost the entire surface. As the solder, tin-lead eutectic solder or lead-free solder is preferably used (the same applies hereinafter). Such bus bar electrodes 5 and finger electrodes 6 are similarly formed on the back surface (non-light receiving surface) side of the solar cell element 2.

  In the solar cell element 2 having such a configuration, one end portion of the connection conductor 3 is soldered on the light receiving surface side bus bar electrode, and the other end portion of the connection conductor 3 is adjacent to another solar cell element 2. The plurality of solar cell elements 2 are electrically connected to each other by the connection conductor 3 by soldering to the backside busbar electrode.

  As the connection conductor 3, for example, a low resistance wiring material such as copper or aluminum, which is solder-coated on the entire surface with solder on one side of about 20 to 70 μm by plating or dipping, is cut to an appropriate length. Those are preferably used. The width of the connection conductor 3 may be set equal to or less than the width of the bus bar electrode 5 of the solar cell element 2 so that the connection conductor 3 itself does not shadow the light receiving surface of the solar cell element 2 when soldering. Further, the length of the connection conductor 3 overlaps almost all of the bus bar electrodes 5 of the solar cell element 2, and further overlaps the bus bar electrode on the non-light-receiving surface side of the adjacent solar cell element and the interval between the predetermined solar cell elements. You can do that. For example, in the case of a polycrystalline silicon solar cell element of about 150 mm square, the width of the connection conductor 3 is preferably about 1 to 3 mm, and the length is preferably about 250 to 300 mm. Note that the resistance component of the solar cell element 2 can be reduced by overlapping the connection conductor 3 over substantially the entire length of the bus bar electrode 5 of the solar cell element 2.

  Next, as shown in FIGS. 1B and 1C, the plurality of solar cell elements 2 electrically connected by the connection conductor 3 as described above are formed of the translucent substrate 1 and the back sheet 9. The solar cell module is constituted by being enclosed and integrated using the fillers 7 and 8.

  As the translucent substrate 1, for example, a substrate made of glass or synthetic resin is used. As the glass substrate, white plate glass, tempered glass, double tempered glass, heat ray reflective glass and the like are used, and in particular, white plate tempered glass having a thickness of about 3 mm to 5 mm is preferably used. A polycarbonate resin having a thickness of about 5 mm is preferably used for the synthetic resin substrate.

  The light receiving surface side filler 7 and the back surface side filler 8 are made of an ethylene-vinyl acetate copolymer (hereinafter abbreviated as EVA) or polyvinyl butyral (PVB), and have a thickness of about 0.4 to 1 mm by a T die and an extruder. The one formed into a sheet shape is used. These are depressurized inside the laminating apparatus to discharge bubbles inside the laminate, and heated from 100 to 200 ° C. for 15 minutes to 1 hour, for example, while pressing one of the upper and lower surfaces, It has the role of softening and fusing and integrating with other members. In addition, EVA and PVB used as the back surface side filler 8 are preferably transparent from the viewpoint of translucency, and from the viewpoint of enhancing the design properties according to the surrounding environment, titanium oxide, pigments, and the like are contained. It is preferable to color it white or the like.

  As the back sheet 9, a sheet having low moisture permeability is preferably used. For example, a fluorine resin sheet sandwiching an aluminum foil or a polyethylene terephthalate (PET) sheet deposited with alumina or silica is preferably used. Used.

  As described above, the solar cell module according to the present invention is formed. Moreover, the frame 4 is attached to the outer peripheral part as needed.

≪Solar cell module manufacturing equipment≫
FIG. 2 is a perspective view showing a first example of a solar cell module manufacturing apparatus according to the present invention.

<Workbench>
As the work table 11, for example, a surface of a metal plate such as stainless steel or aluminum having a thickness of about 1 to 6 cm is coated with a fluororesin so that the solar cell element is not damaged or cracked. What is necessary is just to set a magnitude | size about 5-30 mm larger than the dimension of the solar cell element 2 which is a mounting member.

  The central portion of the work table 11 has a plurality of through holes 15 provided in a straight line, and the lower portion of the through holes 15 is connected to a vacuum pump or the like to act as a suction portion. That is, the solar cell element 2 placed on the workbench 11 is sucked and fixed to the workbench 11 side by depressurizing the lower space of the solar cell element 2 through the through hole 15 by suction with a vacuum pump. Can do.

In the present embodiment, a groove portion 16 located beside the through hole 15 is provided. For example, the groove 16 has a width of about 1 to 8 mm and a depth of about 1 to 7 mm, and at least one end thereof extends outward from a region on which the solar cell element on the work table 11 is placed. Formed. That is, one end of the groove 16 is configured to be connected to the outside of the space between the work table 11 and the solar cell element 2.

  The work table 11 includes a heating element such as a sheathed heater and a temperature sensor (not shown) such as a thermocouple so that the soldering time can be shortened, and a temperature slightly lower than the melting temperature of the solder in advance. It is desirable to raise the temperature (for example, a temperature lower by about 10 to 50 ° C.).

<Heating means>
As the heating means 13, a nozzle capable of blowing hot air can be used. For example, the heating means 13 is manufactured using a metal pipe such as stainless steel having a diameter of about 2 to 7 mm, and one end thereof is a solar cell on the work table 11. The other end is connected to a hot air generator (not shown) and is directed to the upper surface bus bar electrode of the element. In addition, as a heating means 13, the structure which presses the metal heater block heated up to predetermined temperature besides what uses a hot air can be used suitably.

  Here, it is preferable that a hot air blowing time and timing can be controlled by providing an electromagnetic valve that can be opened and closed by a signal from a sequencer or the like in the middle of the hot air blowing nozzle 13 and the hot air generator.

  Further, a temperature sensor such as a thermocouple is provided in the vicinity of the outlet of one end of the hot air blowing nozzle 13 so that the temperature of the hot air is automatically controlled to a set temperature of about 400 to 500 ° C. by the temperature controller. It is preferable.

  One end of the hot air blowing nozzle 13 is disposed at an upper portion about 10 to 50 mm away from the work table 11 and is connected to an air cylinder or the like so that the whole is movable in the vertical direction.

  Such hot air blowing nozzle 13 is prepared in a number corresponding to the soldered portion of the bus bar electrode of the solar cell element. For example, in a solar cell element of 150 mm square, about 10 to 15 hot air blowing nozzles 13 may be prepared for each bus bar.

≪Solar cell module manufacturing method≫
A method for manufacturing the solar cell module of the present invention using the solar cell module manufacturing apparatus as described above will be described step by step.

  FIG. 3 is a side view for explaining the first embodiment of the manufacturing method of the solar cell module of the present invention, and FIG. 4 is a plan view showing the positional relationship of each component with respect to FIG. It is.

<The process of mounting a 1st connection conductor on a worktable>
First, as shown in FIGS. 2 and 3A, a work table 11 having a through hole 15 and a groove 16 is prepared.

Then, on the work table 11, the first connection conductor 3 a cut to the predetermined length is placed next to the groove 16 in the order of the through hole 15, the groove 16, and the first connection conductor 3 a. Place them in an array.

<The process of mounting a solar cell element on a worktable>
Next, as shown in FIG. 3 (b), the solar cell element 2 having the lower surface side bus bar electrode 5a is covered with the through hole 15, the center portion of the groove portion 16, and one end portion of the first connection conductor 3a, and The lower bus bar electrode 5a is placed so as to abut on the first connection conductor 3a on the work table. When this state is viewed from above, as shown in FIG. 4, in the work table 11, the end of the groove 16 extends to the outside of the portion where the solar cell element 2 is placed, and the through hole 15. However, it is arrange | positioned so that it may hide under the solar cell element 2. FIG.

<Step of sucking solar cell element>
Then, the solar cell element 2 is attracted | sucked by opening the solenoid valve connected with the through-hole 15 by an attraction | suction part, and decompressing the inside of the through-hole 15. FIG.

  At this time, since the space part 17 surrounded by the solar cell element 2, the first connection conductors 3a on both sides and the work table 11 is also decompressed by the suction by the suction part, the first connection conductor 3a includes A force to move toward the inside of the space portion 17 will work. However, in this embodiment, since the groove part 16 extended outside the solar cell element 2 is provided between the through hole 15 and the first connection conductor 3a, the influence of the pressure reduction of the space part 17 is provided. Can be reduced from reaching the first connection conductor 3a, and occurrence of displacement between the lower-surface-side bus bar electrode 5a and the first connection conductor 3a can be effectively suppressed.

<The process of connecting a 1st electrode and a 1st connection conductor>
Next, in the suction state as described above, the hot air blowing nozzle 13 blows hot air on the lower surface side bus bar electrode 5a for about several seconds to melt the solder of the first connection conductor 3a, thereby lower surface side bus bar electrode. 5a and the first connection conductor 3a are soldered.

  Thereafter, when the solder is cooled and solidified, the hot air blowing nozzle 13 is raised, and the decompression of the through hole 15 is stopped to release the suction fixing of the solar cell element 2.

<Multilayer integration process>
Next, the solar cell element 2 connected by the connection conductor 3 formed in the above-described process is placed on the light-receiving surface side filler 7 laminated on the translucent substrate 1, and further on the back surface By laminating the side filler 8 and the back sheet 9 sequentially, a laminate as shown in FIG. 1C is formed.

  This laminate is set in a laminating apparatus, depressurized to discharge bubbles inside the laminate, and heated at 100 to 200 ° C. for 15 minutes to 1 hour, for example, while pressing one of the upper and lower surfaces. Thus, the constituent elements of the laminate are integrated with each other to complete the solar cell module according to the present invention. In addition, the frame 4 may be attached to the outer peripheral part as needed.

(Second Embodiment)
Next, 2nd Embodiment of the manufacturing method of the solar cell module of this invention is described using FIGS. Note that a description of the same points as in the first embodiment described above will be omitted.

  FIG. 5 is a perspective view showing a second example of the solar cell module manufacturing apparatus according to the present invention.

  FIG. 6 is a side view for explaining a second embodiment of the method for manufacturing a solar cell module of the present invention, and FIG. 7 is a plan view showing the positional relationship of each component with respect to FIG. It is.

  As shown in FIG. 5, the work table 11 according to the present embodiment is provided with a plurality of through holes 15 a, 15 b, and 15 c that are suction portions in a straight line.

  Hereinafter, each process is demonstrated in order about 2nd Embodiment of the manufacturing method of a solar cell module.

<The process of mounting a 1st connection conductor on a worktable>
First, as shown in FIGS. 5 and 6A, on the work table 11, between the row of through holes 15a and the row of through holes 15b, and between the row of through holes 15b and the through holes 15c. The first connection conductors 3a are placed between the columns.

<The process of mounting a solar cell element on a worktable>
Next, as shown in FIG.6 (b), the solar cell element 2 which has the lower surface side bus-bar electrode 5a covers the suction | inhalation part 15a, 15b, 15c and the one end part of the 1st connection conductor 3a, and a solar cell The lower-side bus bar electrode 5a of the element 2 is placed so as to be in contact with the first connection conductor 3a. When this state is viewed from above, as shown in FIG. 7, in the work table 11, the through hole 15 is located so as to be hidden below the solar cell element 2 and is disposed so as to sandwich the connection conductor 3 from both sides. ing.

<Step of sucking solar cell element>
Thereafter, the solar cell element 2 is sucked by the suction part, that is, by opening the electromagnetic valve connected to the through hole 15 and reducing the pressure inside the through holes 15a, 15b, 15c.

  At this time, because the suction by the suction portion causes the solar cell element 2, the first connection conductor 3a on both sides, and the space portion 17 surrounded by the work table 11 to be in a decompressed state, the first connection conductor 3a The force that moves toward the inside of the space portion 17 works. However, in this embodiment, since the first connection conductor 3a receives the suction force by the through holes 15a and 15c provided on both sides of the first connection conductor 3a, the first connection conductor 3a is affected by the suction force received from one side. This can be alleviated by the suction force received from the other, and it is possible to effectively suppress the occurrence of displacement between the lower surface side bus bar electrode 5a and the first connection conductor 3a. In particular, it is preferable to balance the influence on the first connection conductor 3a by equalizing the suction forces by the through holes 15a and 15c provided on both sides of the first connection conductor 3a.

(Third embodiment)
Next, 3rd Embodiment of the manufacturing method of the solar cell module of this invention is described using FIG.8 and FIG.9. Note that a description of the same points as in the first embodiment described above will be omitted.

  FIG. 8 is a perspective view showing a third example of the solar cell module manufacturing apparatus according to the present invention.

  FIG. 9: is a side view for demonstrating 3rd Embodiment of the manufacturing method of the solar cell module of this invention.

  The solar cell module manufacturing apparatus according to the present embodiment has a configuration as shown in FIG. 8, and with respect to the solar cell module manufacturing apparatus of FIG. 2 described in the first embodiment described above. A transfer belt 12 and a pressing pin 14 are added. In the following, these additional configurations will be described.

  The transfer belt 12 has a first connection conductor 3a mounted thereon and is movable. For example, the transfer belt 12 is made of a metal such as stainless steel having a width of about 10 to 30 mm and a thickness of about 0.1 to 0.3 mm. The surface of the belt is configured by coating a fluororesin or the like so that the solder does not adhere. Therefore, the transfer belt 12 is provided on the work table 11 at a location corresponding to the position of the bus bar electrode 5 of the solar cell element. The transfer belt 12 is configured to be driven by a servo motor, a sequencer, or the like in accordance with the timing at which soldering is completed.

  Examples of the pressing pin 14 include a telescopic probe pin in which a spring is built in a stainless steel having a diameter of about 1 mm. And the shape of the front-end | tip part is preferable to make a semicircle so that a crack and a crack may not generate | occur | produce in a solar cell element, when the connection conductor of an upper surface is pressed.

  The lower end of the presser pin 14 is disposed at an upper portion about 10 to 50 mm away from the workbench 11 and is connected to an air cylinder or the like so as to be movable in the vertical direction as a whole.

  The number of the pressing pins 14 is set according to the soldering region. For example, in a 150 mm square solar cell element, about 10 to 15 pressing pins 14 may be provided for one bus bar.

  Hereinafter, each process is demonstrated in order about 3rd Embodiment of the manufacturing method of a solar cell module.

<Step of placing the first connection conductor on the transfer belt>
First, as shown in FIGS. 8 and 9A, the first connection conductor 3 a cut to the above-described predetermined length is placed on the transfer belt 12 stopped on the work table 11. .

<The process of mounting a solar cell element on a transfer belt>
On top of that, the solar cell element 2 is arranged so that its lower-side bus bar electrode 5a abuts on the first connection conductor 3a on the transfer belt 12, as shown in FIG. 9B.

<Step of sucking solar cell element>
Then, the solar cell element 2 is attracted | sucked by opening the solenoid valve connected with the through-hole 15 by an attraction | suction part, and decompressing the inside of the through-hole 15. FIG.

  At this time, since the space portion 17 surrounded by the solar cell element 2, the first connection conductors 3a on both sides, the transfer belt 12, and the work table 11 is also decompressed by the suction by the suction portion, the first connection A force to move the inside of the space portion 17 acts on the conductor 3a. However, in this embodiment, since the groove part 16 extended to the outer side of the solar cell element 2 is provided between the through-hole 15 and the 1st connection conductor 3a, by the pressure reduction of the space part 17 It is possible to reduce the influence on the first connection conductor 3a, and it is possible to suppress the occurrence of displacement between the lower surface side bus bar electrode 5a and the first connection conductor 3a.

<The process of mounting a 2nd connection conductor on the 2nd electrode of a solar cell element>
Next, with the solar cell element 2 sucked and fixed to the work table 11, the second connection conductor 3b is placed on the upper surface side bus bar electrode 5b of the solar cell element 2, as shown in FIG. To do. At this time, the second connection conductor 3 b is placed so as to extend on the opposite side to the direction in which the first connection conductor 3 a extends with respect to the solar cell element 2.

  As described above, even when the connection conductor is placed on the upper surface side of the solar cell element 2, the second connection conductor 3 b is mounted by maintaining the state in which the solar cell element 2 is sucked and fixed to the work table 11. During the placing process, it is effective for both the positional deviation between the lower-surface-side bus bar electrode 5a and the first connection conductor 3a and the positional deviation of the solar cell element 2 itself on which the second connection conductor 3b is placed. Can be suppressed.

<The process of connecting an electrode and a connection conductor>
Thereafter, the pressing pin 14 is lowered so as to come into contact with the second connection conductor 3b, thereby pressing the second connection conductor 3b against the upper surface side bus bar electrode 5b.

  In such a pressed state, hot air is blown from the hot air blowing nozzle 13 toward the second connecting conductor 3b side on the upper surface side bus bar electrode 5b for about several seconds, whereby the solder of the first connecting conductor 3a and the second connecting conductor 3a are blown. The solder of the connection conductor 3b is melted, and the lower surface side bus bar electrode 5a and the first connection conductor 3a, and the upper surface side bus bar electrode 5b and the second connection conductor 3b are soldered, respectively.

  Thus, by soldering the first connection conductor 3a and the second connection conductor 3b to the solar cell element 2 at a time, the soldering time can be greatly shortened, and at the time of soldering Since heating is only required once, deterioration in characteristics due to thermal stress on the solar cell element 2 can be suppressed.

  Thereafter, when the solder is cooled and solidified, the pressing pin 14 is raised, and the pressure reduction of the through hole 15 is stopped to release the suction fixing of the solar cell element 2.

<Step of transferring solar cell element>
Next, the position of the solar cell element with respect to the work table 11 is moved by moving the transfer belt 12 in the direction in which the first connection conductor 3 a extends from the solar cell element 2 with the solar cell element 2 mounted. Is transferred by a predetermined pitch. This predetermined pitch may be set in consideration of the dimension between solar cell elements connected to each other.

  Thus, by transferring the solar cell element 2 after soldering, the portion of the second connecting conductor 3b extending from the solar cell element 2 is placed on the transfer belt 12 on the work table 11 after the transfer. Therefore, this extended portion becomes the first connection conductor 3a in the next step. Thus, by repeating a series of steps including the connecting step and the transferring step, the step of connecting the plurality of solar cell elements 2 by the connecting conductor 3 can be performed continuously with high productivity.

(Fourth embodiment)
Next, 4th Embodiment of the manufacturing method of the solar cell module of this invention is described using FIG.10 and FIG.11. Note that a description of the same points as in the first embodiment described above will be omitted.

  FIG. 10 is a perspective view showing a fourth example of the solar cell module manufacturing apparatus according to the present invention.

  FIG. 11: is a side view for demonstrating 4th Embodiment of the manufacturing method of the solar cell module of this invention.

  The solar cell module manufacturing apparatus according to the present embodiment has a configuration as shown in FIG. 10, and in contrast to the solar cell module manufacturing apparatus of FIG. 5 described in the second embodiment described above. A transfer belt 12 and a pressing pin 14 are added. Since these additional configurations are the same as those of the third embodiment described above, description thereof is omitted.

  As shown in FIG. 10, the transfer belt 12 is arranged between the row of through holes 15a and the row of through holes 15b and between the row of through holes 15b and the row of through holes 15c. In between.

  Hereinafter, each process is demonstrated in order about 4th Embodiment of the manufacturing method of a solar cell module.

<Step of placing the first connection conductor on the transfer belt>
First, as shown in FIGS. 10 and 11A, the first connection conductor 3 a cut to the above-described predetermined length is placed on the transfer belt 12 stopped on the work table 11. .

  On top of that, the solar cell element 2 is arranged so that the lower-side bus bar electrode 5a abuts against the first connection conductor 3a on the transfer belt 12, as shown in FIG.

  Thereafter, the solar cell element 2 is sucked by the suction part, that is, by opening the electromagnetic valve connected to the through hole 15 and reducing the pressure inside the through holes 15a, 15b, 15c.

  At this time, because the suction by the suction portion causes the solar cell element 2, the first connection conductor 3a on both sides, and the space portion 17 surrounded by the work table 11 to be in a decompressed state, the first connection conductor 3a The force that moves toward the inside of the space portion 17 works. However, in this embodiment, since the through holes 15a and 15c provided on both sides of the first connection conductor 3a are subjected to the suction force, the first connection conductor 3a is affected by the suction force received from one side, the other Can be mitigated by the attraction force received from the first, and it is possible to effectively suppress the occurrence of positional displacement between the lower-side bus bar electrode 5a and the first connection conductor 3a. In particular, it is preferable to balance the influence by equalizing the suction forces by the through holes 15a and 15c provided on both sides of the first connection conductor 3a.

  In addition, this invention is not limited to the said embodiment, Many corrections and changes can be added within the scope of the present invention.

  For example, in the above-described embodiment, the groove 16 is formed so that at least one end thereof extends outside the region on which the solar cell element on the workbench 11 is placed. You may comprise so that the bottom part of the groove part 16 may penetrate the lower end side of the work bench | platform 11. FIG. Even in this case, since the bottom portion of the groove portion 16 is connected to the outside of the space portion 17, it is possible to reduce the influence of the reduced pressure of the space portion 17 on the first connection conductor 3a.

An example of the solar cell module formed using the manufacturing method of the solar cell module of this invention is shown, (a) is the light-receiving surface side top view of one solar cell element which comprises a solar cell module, (b) ) Is a plan view of the light-receiving surface side of the solar cell module, and (c) is an exploded sectional view of the solar cell module. It is a perspective view which shows the 1st example of the manufacturing apparatus of the solar cell module which concerns on this invention. It is a side view for demonstrating 1st Embodiment of the manufacturing method of the solar cell module of this invention, (a) is the process of mounting a 1st connection conductor on a work table, (b) is 1st. (C) shows the process of connecting a solar cell element and a 1st connection conductor with a heating means. It is a top view which shows the positional relationship of each component regarding FIG.3 (b). It is a perspective view which shows the 2nd example of the manufacturing apparatus of the solar cell module which concerns on this invention. It is a side view for demonstrating 2nd Embodiment of the manufacturing method of the solar cell module of this invention, (a) is the process of mounting a 1st connection conductor on a work table, (b) is 1st. (C) shows the process of connecting a solar cell element and a 1st connection conductor with a heating means. It is a top view which shows the positional relationship of each component regarding FIG.6 (b). It is a perspective view which shows the 3rd example of the manufacturing apparatus of the solar cell module which concerns on this invention. It is a side view for demonstrating 3rd Embodiment of the manufacturing method of the solar cell module of this invention, (a) is the process of mounting a 1st connection conductor on a transfer belt, (b) is 1st. The step of placing the solar cell element and the second connection conductor on the connection conductor in order, (c) is the solar cell element and the first connection conductor (and the second connection conductor) using the heating means and the pressing means. The process of connecting is shown. It is a perspective view which shows the 4th example of the manufacturing apparatus of the solar cell module which concerns on this invention. It is a side view for demonstrating 4th Embodiment of the manufacturing method of the solar cell module of this invention, (a) is the process of mounting a 1st connection conductor on a transfer belt, (b) is 1st. The step of placing the solar cell element and the second connection conductor on the connection conductor in order, (c) is the solar cell element and the first connection conductor (and the second connection conductor) using the heating means and the pressing means. The process of connecting is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Translucent board | substrate 2; Solar cell element 3; Connection conductor 3a; 1st connection conductor (Connection conductor connected to the lower surface side bus-bar electrode of a solar cell element)
3b; 2nd connection conductor (connection conductor connected to the upper surface side bus-bar electrode of a solar cell element)
4; frame body 5; bus bar electrode 5a; first electrode (lower surface side bus bar electrode)
5b; second electrode (upper side bus bar electrode)
6; finger electrode 7; light receiving surface side filler 8; back surface side filler 9; back surface sheet 11; work table 12; transfer belt 13; heating means (hot air blowing nozzle)
14: Pressing means (pressing pin)
15: Suction part (through hole)
16; Groove portion 17; Space portion

Claims (1)

Preparing a workbench having a suction part and a groove part located beside the suction part ;
Placing the first connection conductor on the workbench so as to be arranged beside the groove in the order of the suction portion, the groove, and the first connection conductor;
A solar cell element having a first electrode on the workbench is covered with the suction portion, a part of the groove, and one end of the first connection conductor, and the first electrode is the first electrode. A step of placing so as to contact the connecting conductor of
Sucking the solar cell element with the suction part;
Connecting the first electrode and the first connecting conductor;
The manufacturing method of the solar cell module provided with.

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