JP2013138141A - Conductive film separator peeling device and solar cell module assembly device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conductive film separator peeling device which peels separators without using an adhesive tape that is a consumable supply, and to provide a solar cell module assembly device including the conductive film separator peeling device.SOLUTION: A separator peeling device peels a separator 3a of a conductive film 3 which has the separator 3a bonded to a solar cell 1 and a conductive layer 3b, and includes: a peeling part 166, a biasing part 167a, and a pair of rollers 186A, 186B. The peeling part 166 comes in contact with the conductive film 3 from the lateral side and peels the separator 3a from the conductive layer 3b. The biasing part 167a holds the peeling part 166 and biases the peeling part 166 to the solar cell 1 side. The pair of contact members 186A, 186B is attached to the peeling part 166 while being arranged in a direction in which the peeling part 166 moves close to the conductive film 3 and comes in contact with a surface of the solar cell 1 on which the conductive layer 3b is bonded.

Description

  This invention used the separator peeling apparatus of the electroconductive film which peels a separator from an electroconductive film, and this, when connecting the electrode and electric wire which were provided in the front and back of a photovoltaic cell using an electroconductive film, and this The present invention relates to a solar cell module assembly apparatus.

  For example, a crystalline solar cell module assembly process includes a series of solar cells in which a crystal cell substrate (hereinafter simply referred to as “cell”) of a crystalline solar cell such as a single crystal solar cell or a polycrystalline solar cell is connected to a wiring member. A step of forming a circuit, and a step of sealing with a protective sheet and attaching an external terminal.

  Conventionally, soldering has been widely used as a method for connecting a wiring member to a cell. Lead-containing solder is a good conductor and has a certain strength and environmental reliability. However, from the viewpoint of environmental protection in recent years, it has been considered to use lead-free solder. When this lead-free solder is used, the accuracy of connection is lowered due to the difference in thermal expansion, and reliability is a problem. It was.

Therefore, there is known a method for avoiding a decrease in reliability due to a difference in thermal expansion by connecting a wire and a cell using a conductive film or an anisotropic conductive film (ACF) (patent) Reference 1).
On the other hand, since anisotropic conductive films are expensive, an anisotropic conductive film is not provided over the entire length of the thin-film solar cell wiring length with low current density, but is anisotropic by a method of providing wiring in various places (single piece attachment) A method for reducing the amount of conductive film used has been proposed (see Patent Document 2).

JP 2008-300403 A WO2008 / 152865 pamphlet

  The conductive film or the anisotropic conductive film includes an adhesive conductive layer and a separator that is stacked on one surface of the conductive layer. In order to peel the separator from the conductive film or anisotropic conductive film attached to the cell or the electric wire, for example, a method of attaching the separator to an adhesive tape and peeling it off is considered.

  However, the method of attaching and separating the separator on the adhesive tape uses a consumable adhesive tape, which increases the cost.

  An object of the present invention is to take into consideration the situation in the prior art described above, and to separate a separator for a conductive film capable of peeling a separator without using a consumable adhesive tape, and an apparatus for assembling a solar cell module equipped with the separator Is to provide.

In order to solve the above problems and achieve the object of the present invention, a separator peeling device for a conductive film of the present invention includes a conductive layer attached to a solar cell or an electric wire, and the solar cell or electric wire side of the conductive layer. The separator is peeled off from the conductive film having the separator superimposed on the opposite surface, and includes a peeling portion, a biasing portion, and a contact member.
A peeling part contacts a conductive film from a side, and peels a separator from a conductive layer.
The urging portion holds the peeling portion and urges the solar cell or the electric wire side.
A contact member is attached to a peeling part, and contacts the surface where the conductive layer of the photovoltaic cell or the electric wire was affixed.

Moreover, the solar cell module assembly apparatus of this invention is equipped with a conductive film sticking unit, a separator peeling apparatus for a conductive film, and a pressure bonding unit.
A conductive film sticking unit sticks a conductive film which has a conductive layer and a separator piled up on one side of a conductive layer to a photovoltaic cell or an electric wire.
The separator peeling device for a conductive film peels a separator from a conductive film attached to a solar battery cell or an electric wire.
A crimping | compression-bonding unit crimps | bonds a photovoltaic cell and an electric wire through a conductive layer.
And the above-mentioned separator peeling apparatus is used for a separator peeling apparatus.

  In the separator peeling apparatus and the solar cell module assembly apparatus of the present invention, the peeling portion comes into contact with the conductive film from the side, and the separator is peeled off from the conductive layer. Thereby, a separator can be peeled from a conductive layer, without using consumables, such as an adhesive tape.

  Moreover, in the separator peeling apparatus and solar cell module assembly apparatus of an electroconductive film, the distance from a photovoltaic cell or an electric wire to a peeling part is prescribed | regulated by a biasing part and a contact member. Thereby, a peeling part can be made to follow the undulation of a photovoltaic cell or an electric wire, and a peeling part can be made to contact a separator of an electroconductive film reliably, and the peeling leak of a separator can be prevented or suppressed. Further, the conductive layer can be prevented from being damaged at the peeling portion.

  According to the separator peeling apparatus and the solar cell module assembling apparatus for the conductive film having the above-described configuration, the separator can be peeled without using the adhesive tape which is a consumable item.

It is a top view which shows the whole structure of one Embodiment of the solar cell module assembly apparatus of this invention. It is a front view for demonstrating the process of affixing the electroconductive film on the cell in one embodiment of the solar cell module assembly apparatus of this invention. It is a perspective view which shows the electroconductive film sticking head which concerns on one Example of the solar cell module assembly apparatus of this invention, and its peripheral member. It is explanatory drawing explaining the process of cut | disconnecting the electroconductive film in one embodiment of the solar cell module assembly apparatus of this invention. It is explanatory drawing explaining the process of cut | disconnecting the electroconductive film in one embodiment of the solar cell module assembly apparatus of this invention. It is explanatory drawing explaining the process of adsorb | sucking the cut | disconnected electroconductive film with the sticking head in one embodiment of the solar cell module assembly apparatus of this invention. It is explanatory drawing explaining the process of affixing the electroconductive film in the normal position of the front and back of a cell in one embodiment of the solar cell module assembly apparatus of this invention. It is a side view which shows one Embodiment of the separator peeling apparatus of the electroconductive film of this invention. It is a front view of the peeling part in one embodiment of the separator peeling apparatus of the electroconductive film of this invention. It is a longitudinal cross-sectional view of the peeling part in one embodiment of the separator peeling apparatus of the electroconductive film of this invention. It is a top view of the energizing member in which the energizing part in one embodiment of the separator peeling device of the conductive film of the present invention was provided. It is explanatory drawing explaining operation | movement of one Embodiment of the separator peeling apparatus of the electroconductive film of this invention. It is a perspective view which shows the example of the structure of the photovoltaic cell string assembled by the solar cell module assembly apparatus of this invention.

  Hereinafter, embodiments of the solar cell module assembling apparatus of the present invention will be described with reference to FIGS. 1 to 12. In order to help understanding at that time, typical crystalline solar cells (hereinafter simply referred to as “ The structure of the cell string 4 of the “cell” will be described with reference to FIG.

[Cell string]
The cell 1 shown in FIG. 13 has electrode patterns 1a (see FIG. 12) on the front and back. Four wires 2 are attached to the front and back of the cell 1. The attachment of the four electric wires to the front and back of each cell 1 is performed by attaching a conductive film (not shown) at several places (eight places as an example) of each electric wire 2.

  The cell string 4 is configured by connecting, for example, ten cells 1 by electric wires 2. The solar cell module includes a plurality of cell strings 4, a transmissive glass and a back sheet that sandwich the plurality of cell strings 4.

  The cell string 4 shown in FIG. 13 is configured by connecting cells 1 using four electric wires. The number of cells 1, the number of electric wires 2, the number and length of conductive films are as follows. This should be determined by the design of the battery module. In other words, in the cell string according to the present invention, it is of course possible to freely change the number of the electric wires 2 or to separately determine the connection location on the front and back sides.

[Solar cell module assembly equipment]
Next, a solar cell module assembling apparatus will be described with reference to FIG.
FIG. 1 is a plan view showing the overall configuration of an embodiment of a solar cell module assembling apparatus (hereinafter referred to as “this example”).

  In the solar cell module assembling apparatus 100 of the present example, an electric wire supply unit 101, an electric wire straightening unit 102, and an electric wire cutting unit 104 are arranged in order from the left side in the lower part of FIG. Further, in the upper part of FIG. 1, a cell supply unit 105, a conductive film attaching unit 103, a separator peeling unit ( (Separator peeling device) 106 is disposed.

  Further, on the right side (rear) of the lower stage of FIG. 1, a preheating and provisional pressure bonding unit 107 that joins and preheats the electric wire 2 to the cell 1, a main crimping unit 108 that crimps the cell 1 and the electric wire 2, and a final pressure bonding are provided. A cooling unit 109 for cooling the cell 1 is arranged. Next to the cooling unit 109, a transfer device 110 is arranged for pulling out the cell strings 4 (see FIG. 13) connected in a chain form from the cooling unit 109 and delivering them to the next step 120.

  In the solar cell module assembling apparatus 100 configured as described above, first, an electric wire (not shown) is supplied from the electric wire supply unit 101, and the distortion generated during the electric wire transportation is corrected by the electric wire correction unit 102. That is, since the flat electric wire sent from the electric wire supply unit 101 is wound around a reel (not shown), for example, it has a restoring force that deforms so as to be bent. Therefore, the electric wire straightening unit 102 has a mechanism for forcibly removing the curl generated in the flat electric wire by this restoring force.

  In FIG. 1, the specific configuration of the electric wire straightening unit 102 is not shown, but in the electric wire straightening unit 102, for example, a dancer roller is disposed between two feeding rollers against the bending of the electric wire, Appropriate tension is applied to the wires against the restoring force. That is, the electric wire correction unit 102 corrects curl generated on the electric wire while maintaining this tension.

  The electric wire whose curl has been corrected by the electric wire correction unit 102 is sent to the electric wire cutting unit 104. The wire cutting unit 104 cuts the wire into a length that is an integral multiple of the cell length (here, approximately twice). In the electric wire cutting unit 104, the tip of the electric wire drawn into the unit is received by a chuck, and the electric wire is cut from above and below by a cutting blade (not shown).

  On the other hand, the cell 1 (see FIG. 3) is supplied from the cell supply unit 105 in a state of being stacked on the tray, and is conveyed to the conductive film pasting unit 103. The conductive film affixing unit 103 has a small piece of conductive film 3 (see FIG. 3) cut into a plurality of pieces (hereinafter referred to as “conductive film” hereinafter) at a predetermined location of the supplied cell 1. ”).

  The conductive film 3 has a conductive layer having adhesiveness and conductivity, and a separator (release paper) superimposed on one surface of the conductive layer, and the conductive layer and the separator are adhered to each other. Affixed to cell 1. Thereafter, the cell 1 to which the conductive film 3 is attached is sent to the separator peeling unit 106. The separator peeling unit 106 peels only the separator from the conductive film 3 attached to the cell 1.

  The cell 1 from which the separator of the conductive film 3 has been removed is sent to the preheating and provisional pressure bonding unit 107 in that state. In the preheating and provisional pressure bonding unit 107, the cell 1 sent from the separator peeling unit 106 and the electric wire 2 cut by the electric wire cutting unit 104 are joined and preheated and provisional pressure bonded.

  In the main crimping unit 108, thermocompression bonding is performed in a state where the electric wire 2 and the cell 1 are integrated, and the chained cell string 4 (see FIG. 13) is sequentially drawn out to the cooling unit 109. Thereafter, the cell string 4 is delivered to the next step 120 by the transfer device 110.

Next, the cell supply unit 105 and the conductive film sticking unit 103 will be described with reference to FIG.
FIG. 2 is a front view for explaining a process of attaching the conductive film 3 to the cell 1.

  As shown in FIG. 2, the cell supply unit 105 includes a cell tray 151 in which a plurality of cells 1 are stacked, an elevator 152, a suction head 153, and a transfer mechanism 154.

  The cell tray 151 is maintained by the elevator 152 so that the height of the surface of the uppermost cell 1 is constant. That is, the uppermost cell 1 is adsorbed by the adsorption head 153 and conveyed to the conductive film pasting unit 103 one by one by the transfer mechanism 154. At this time, when the uppermost cell 1 is carried by the transfer mechanism 154, the elevator 152 rises. Thereby, the height of the surface of the uppermost cell 1 in the cell tray 151 is controlled to be always constant.

  The conductive film sticking unit 103 moves up and down the feed roller 131 that feeds out the tape-like conductive film 3, the conductive film sticking head 133 that sticks the conductive film 3 to the cell 1, and the conductive film sticking head 133. A drive mechanism 134 is provided. These specific operations will be described later with reference to FIGS.

Next, the conductive film sticking unit 103 will be described with reference to FIG.
FIG. 3 is a perspective view showing the conductive film sticking head 133 and its peripheral members in the conductive film sticking unit 103.

  As shown in FIG. 3A, the conductive film 3 is transferred by a feed roller 131 by a predetermined length, and is inserted between nine cutter blades 138b and a saddle plate 138a. At this stage, the cutter blade 138b is raised by an elevating mechanism 138c (see FIG. 6) described later, and the conductive film 3 is fully cut by the cutter blade 138b.

  Here, the conductive layer 3b and the separator (release paper) 3a are cut by sandwiching the conductive film 3 between the cutter blade 138b and the gutter 138a. However, since the conductive layer 3b having adhesiveness faces the cutter blade 138b, the conductive layer 3b adheres to the side surface of the cutter blade 138b. Therefore, the eight small pieces of the conductive film 3 that are fully cut are not separated and are held by the cutter blade 138b. In this example, the cutter blade 138b is integrally formed by etching.

  Thereafter, as shown in FIG. 3B, the cutter blade 138 b holds the conductive film 3 in a full cut state and moves to the lower part of the conductive film sticking head 133. Then, the conductive film sticking head 133 is lowered by a drive mechanism (not shown), and the eight small pieces of the conductive film 3 are sucked by the conductive film sticking head 133. This adsorption operation will be described in detail with reference to FIG.

Next, the process of cutting (full cut) the conductive film 3 with the cutter blade 138b will be described with reference to FIGS.
4 and 5 are explanatory views for explaining a process of cutting the conductive film 3.

FIG. 4A is an explanatory diagram showing a state immediately before the conductive film 3 is cut by the cutter blade 138b.
As shown to FIG. 4A, the groove | channel where the cutter blade 138b is inserted is formed in the surface facing the cutter blade 138b of the saddle plate 138a. In addition, a suction hole 139 for vacuum-sucking the conductive film 3 is provided at one end of the cover plate 138a. The leading end portion of the conductive film 3 is vacuum-sucked in the suction holes 139 of the flange plate 138a. In addition, in the state shown to FIG. 4A, the cover plate 138a vacuum-sucks the electroconductive film 3. FIG.

Further, a film receiving portion 136, a first pressing pin 137a, a second pressing pin 137b, and a third pressing pin 137c are arranged around the peripheral plate 138a and the cutter blade 138b.
The film receiving part 136 is arrange | positioned at the separator 3a side of the electroconductive film 3, and has opposed the other end part of the cover board 138a. The film receiving portion 136 is provided with a suction hole 136a for vacuum-sucking the conductive film 3.

  The first pressing pin 137a is opposed to the flange plate 138a with the conductive film 3 interposed therebetween. The first pressing pin 137a is moved in a direction approaching and separating from the conductive film 3 by a driving mechanism (not shown). The third pressing pin 137c faces the film receiving portion 136 with the conductive film 3 interposed therebetween. The third pressing pin 137c moves in a direction approaching and separating from the conductive film 3 by a driving mechanism (not shown).

  The second pressing pin 137b is disposed between the first pressing pin 137a and the third pressing pin 137c. The second pressing pins 137b are driven by a driving mechanism (not shown) in the direction in which the conductive film 3 is stretched (left and right in the drawing in FIG. 4) and the direction normal to the conductive film 3 (in FIG. Direction).

  In the state shown in FIG. 4, the cutter blade 138 b is disposed at a position away from the conductive film 3 by a predetermined distance, and faces each groove of the rib plate 138 a. Further, the first pressing pin 137 a and the third pressing pin 137 c are in contact with the conductive film 3. Thereby, the conductive film 3 is sandwiched between the first pressing pin 137a and the flange plate 138a, and is also sandwiched between the third pressing pin 137c and the film receiving portion 136. In addition, the conductive film 3 is adsorbed by the cover plate 138a and the film receiving portion 136.

The process of cutting the conductive film 3 will be described using the state shown in FIG. 4A as a start state.
From the state shown in FIG. 4A, the cutter blade 138b is raised by the elevating mechanism 138c (see FIG. 6) (see FIG. 4B). Thereby, the cutter blade 138b is inserted in each groove | channel of the collar board 138a, and the electroconductive film 3 interposed between the collar boards 138a is cut | disconnected.

  Next, the cutter blade 138b descends while holding the cut conductive film 3, and then moves in a horizontal direction parallel to the plane in which the groove of the rib plate 138a is provided (in FIG. 4, left and right in the drawing). (See FIG. 4C). At this time, the remaining piece 3 </ b> A of the conductive film 3 is vacuum-sucked in the suction hole 139 at one end of the gutter 138 a. Then, the suction part 135 approaches the remaining piece 3A.

  On the other hand, the leading end of the long conductive film 3 is pressed against the other end of the gutter 138a by the first pressing pin 137a. That is, the leading end portion of the long conductive film 3 is sandwiched between the first pressing pin 137a and the flange plate 138a.

  Subsequently, the vacuum suction of the surplus piece 3A using the suction holes 139 of the gutter plate 138a is stopped, and the suction part 135 vacuum sucks the surplus piece 3A. Then, the flange plate 138a and the second pressing pin 137b move in the horizontal direction and approach the film receiving portion 136 (see FIG. 4D). At this time, the cover plate 138a slides on the separator 3a of the conductive film 3, and the second pressing pin 137b moves the cover plate 138a at a position away from the conductive layer 3b of the conductive film 3 by a predetermined distance. Move synchronously.

  Next, the second pressing pin 137b approaches the conductive film 3, and the conductive film 3 is sandwiched and held between the second pressing pin 137b and the other end of the flange plate 138a. And the front-end | tip part of the elongate conductive film 3 is vacuum-sucked using the suction hole 139 of the gutter board 138a. Subsequently, the first pressing pin 137a and the third pressing pin 137c are separated from the conductive film 3 (see FIG. 5E). Next, the vacuum suction of the suction holes 136a in the film receiving portion 136 is stopped. At this time, if the vacuum suction force is adjusted, it is possible to slide the conductive film 3 while continuing the vacuum suction of the suction holes 136a. Thereby, the elongate conductive film 3 will be in the state adhering to the one end part and other end part of the collar board 138a. Moreover, the suction part 135 which vacuum-sucked the remainder piece 3A returns to a standby position.

  Subsequently, the cutter blade 138b moves in the horizontal direction and passes the cut conductive film 3 to the conductive film sticking head 133 (see FIG. 2) (the conductive film sticking head 133 is not shown in FIG. 5). Then, the saddle plate 138a and the second pressing pin 137b move in the horizontal direction and leave the film receiving portion 136 (see FIG. 5F). Thereby, the long electroconductive film 3 is pulled out by the moving amount of the gutter plate 138a and the second pressing pin 137b.

  Next, the first pressing pin 137a and the third pressing pin 137c approach the conductive film 3, and the suction holes 136a of the film receiving portion 136 vacuum-suck the conductive film 3. Thus, the conductive film 3 is sandwiched between the first pressing pin 137a and the third pressing pin 137c, both ends of the cover plate 138a, and the film receiving portion 136 (see FIG. 5G). Then, the second pressing pin 137 b is separated from the conductive film 3.

  Subsequently, the cutter blade 138b moves in the horizontal direction and is disposed at a position facing the rib plate 138a (see FIG. 5H). Thereby, the saddle plate 138a, the cutter blade 138b, the first pressing pin 137a, the second pressing pin 137b, the third pressing pin 137c, and the like return to the start state shown in FIG. 4A.

  In this example, three pressing pins are used, but the number of pressing pins according to the present invention may be two. In the case of using two pressing pins, the first pressing pin 137a of the present embodiment may be configured to serve as the function of the second pressing pin 137b. In that case, when the state shown in FIG. 4C is changed to the state shown in FIG. 4D, only the rib plate 138a moves in the horizontal direction and approaches the film receiving portion 136. Then, after the movement of the cover plate 138a is completed and the suction portion 139 of the cover plate 138a is used to vacuum-suck the leading end portion of the long conductive wire film 3, the first pressing pin 137a is separated from the conductive film 3. It moves in the horizontal direction and opposes the other end portion of the gutter 138a. Thereafter, the first pressing pin 137a approaches the conductive film 3, and the conductive film 3 is sandwiched between the first pressing pin 137a and the other end of the flange plate 138a.

Next, the process of adsorbing the conductive film 3 by the conductive film sticking head 133 will be described with reference to FIG.
FIG. 6 is an explanatory view illustrating a process of adsorbing the cut conductive film 3 with the conductive film sticking head 133.

  In FIG. 6, the example which affixes the electroconductive film 3 on the surface and the back surface of the cell 1 is shown. For this reason, two conductive mechanisms 3, cutter blades 138b, conductive film sticking head 133, and driving mechanism 134 of conductive film sticking head 133 (hereinafter simply referred to as “driving mechanism 134”) are shown.

  In the state shown in FIG. 6, the cutter blade 138b is disposed between the conductive film sticking heads 133 disposed above and below. That is, the cell 1 (see FIG. 7) has not been inserted between the conductive film sticking heads 133 yet.

  The conductive film sticking head 133 is formed in an elongated bar shape. A vacuum suction hole (not shown) is provided at the tip of the conductive film sticking head 133, and the conductive film 3 can be sucked by sucking air from the vacuum suction hole. Yes. In this example, eight conductive film sticking heads 133 are provided.

  The driving mechanism 134 includes a sliding member 134a, a guide rail 134b, a driving member 134c, and a guide member 134d. The sliding member 134a is connected to each of the eight conductive film sticking heads 133, and the guide rail 134b guides the sliding member 134a in the horizontal axis direction. The drive member 134c moves the sliding member 134a along the guide rail 134b, and the guide member 134d guides the drive member 134c.

  The cutter blade 138b is fixed to a pedestal 138d, and the pedestal 138d moves up and down by an elevating mechanism 138c. As the base 138d moves up and down, the nine integrally formed cutter blades 138b are inserted between each of the eight conductive film sticking heads 133 provided.

  In this example, a rotating cam is used as an elevating mechanism 138c that elevates and lowers the cutter blade 138b via a base 138d. However, as the mechanism for raising and lowering the cutter blade according to the present invention, it is possible to apply a mechanism that can move the pedestal up and down, such as a cylinder mechanism, in addition to the cam. Hereinafter, the lifting mechanism 138c will be described as the cam mechanism 138c.

As shown in FIG. 6, the conductive film 3 is held between the cutter blades 138 b and transferred between the two conductive film application heads 133.
Next, the upper conductive film sticking head 133 is lowered, and the lower conductive film sticking head 133 is raised to suck the separator 3a side of the conductive film 3 by suction from the vacuum suction holes described above.

Next, the operation until the cut conductive film 3 is attached to the cell 1 will be described with reference to FIG.
FIG. 7 is an explanatory diagram for explaining a process of attaching the conductive film 3 to the front and back specified positions of the cell 1.

  As shown in FIG. 7, each conductive film sticking head 133 is spread substantially uniformly over the entire width of the cell 1 by the cooperative operation of the driving member 134 c and the sliding member 134 a in the driving mechanism 134.

  As described above, a vacuum suction hole (not shown) is provided at the tip of each conductive film sticking head 133. Then, the separator 3a side of the conductive film 3 is sucked by the suction force from the vacuum suction hole. And the cell 1 is conveyed between the electroconductive film sticking heads 133 which oppose up and down.

  Next, the drive mechanism 134 moves up and down, and each conductive film sticking head 133 presses the conductive layer 3 b of the conductive film 3 against the front and back surfaces of the cell 1. Thereby, the electroconductive film 3 is affixed on the position where the surface of the cell 1 and the back surface were prescribed | regulated. The specified position on the cell 1 where the conductive film 3 is affixed is a position where the electric wire 2 is overlapped in the preheating and provisional pressure bonding unit 107 (see FIG. 1).

  Subsequently, the suction from the vacuum suction holes of each conductive film sticking head 133 is stopped, the drive mechanism 134 is moved up and down, and each conductive film sticking head 133 is pulled away from the cell 1. Thereby, the attachment to the cell 1 of the electroconductive film 3 which has the separator 3a and the conductive layer 3b is completed. The cell 1 to which the conductive film 3 is attached is sent to the separator peeling unit 106 (see FIG. 1).

  When the conductive film 3 is attached to the cell 1, the cutter blade 138b attached to the base 138d is retracted together with the cam mechanism 138c to the position of the cover plate 138a. Then, the conductive film 3 to be fully cut next is inserted between the gutter 138a and the cutter blade 138b.

  In the conductive film sticking unit 103, the conductive film 3 attached to the cell 1 is in a state where the separator 3a is attached to the conductive layer 3b. Therefore, it is necessary to remove the separator 3a from the conductive film 3 before joining the cell 1 and the electric wire 2 (temporary pressure bonding).

[Separator peeling device]
Next, the configuration of the separator peeling unit 106 will be described with reference to FIG.
FIG. 8 is a side view of the separator peeling unit 106 showing an embodiment of the separator peeling apparatus.

  As shown in FIG. 8, the separator peeling unit 106 includes a peeling block 161 that faces the supplied cell 1 and a holding member 162 that holds the peeling block 161. Furthermore, a cylinder 163 that moves the holding member 162 in the vertical direction and a support member 164 that supports the cylinder 163 are provided.

  In this example, in order to attach the conductive film 3 to the front and back surfaces of the cell 1, the conductive layer 3 b of the conductive film 3 attached to the front surface of the cell 1 and the conductive material attached to the back surface of the cell 1. It is necessary to peel the separator 3a from the conductive layer 3b of the film 3, respectively. Therefore, the separator peeling unit 106 of this example is provided with two peeling blocks 161, a holding member 162, and two cylinders 163. Note that the support member 164 supports the two cylinders 163.

The peeling block 161 includes a base portion 165, a plurality of peeling portions 166, an urging member 167, and a plurality of suction portions 168.
The base portion 165 is formed in a substantially rectangular parallelepiped shape, and has a cell facing surface 165a facing the cell 1 and a back surface 165b which is a surface opposite to the cell facing surface 165a.

  The peeling portion 166 is fixed to the biasing member 167 with a fixing screw. The number of peeling portions 166 is appropriately determined according to the number of small pieces of the conductive film 3 to be attached to the cell 1. For example, when the separator 3a in each small piece of the conductive film 3 is peeled in one operation, the same number of peeling portions 166 as the small pieces in the conductive film 3 may be provided. The separator peeling unit 106 shown in FIG. 8 peels the separator 3a in the eight small pieces of the conductive film 3 by one operation.

  The urging member 167 is attached to the cell facing surface 165a of the base portion 165 with a fixing screw. The urging member 167 is formed with an urging portion 167 a that holds the plurality of peeling portions 166. The urging portion 167a will be described in detail later with reference to FIG.

  The suction part 168 collects the separator 3a peeled off from the conductive layer 3b. The suction unit 168 includes a nozzle 168a and a negative pressure generation unit (not shown) connected to the nozzle 168a. The tip of the nozzle 168a protrudes from the cell facing surface 165a and penetrates the urging member 167, and is disposed on the side of the peeling portion 166.

  The holding member 162 includes a base holding portion 162a that holds the side portion of the base portion 165 in the peeling block 161, and a cylinder connecting portion 162b that is continuous with the base holding portion 162a. The base holding part 162a holds the peeling block 161 so as to be movable in the vertical direction. The cylinder connecting portion 162b faces the back surface 165b of the base portion 165 in the peeling block 161.

  An adjustment screw 170 is provided between the peeling block 161 disposed below the cell 1 and the holding member 162 that holds the peeling block 161. The adjustment screw 170 is used, for example, to adjust the height of the peeling block 161 disposed below the cell 1 and the level of the cell facing surface 165a of the peeling block 161.

  The cylinder 163 shows a specific example of the elevating part according to the present invention, and moves the peeling block 161 up and down via the holding member 162. The vertical direction is a direction in which the two peeling blocks 161 are opposed to each other, and is a direction orthogonal to the front surface and the back surface of the cell 1.

  The support member 164 includes an upper support portion 164a that supports the upper cylinder 163, a lower support portion 164b that supports the lower cylinder 163, and a connecting portion 164c that connects the upper support portion 164a and the lower support portion 164b. ing. The support member 164 is supported by a horizontal movement mechanism 171 (see FIG. 2) so as to be movable in a direction parallel to the transport direction X1 of the cell 1.

  When the support member 164 moves in the processing direction X2 opposite to the conveyance direction X1 of the cell 1, the peeling portion 166 of the peeling block 161 is moved from the side of the conductive film 3 attached to the cell 1 to the separator 3a. Contact.

[Peeling part]
Next, the peeling part 166 is demonstrated with reference to FIG.9 and FIG.10.
FIG. 9 is a front view of the peeling portion 166. FIG. 10 is a longitudinal sectional view of the peeling portion.

As shown in FIGS. 9 and 10, the peeling portion 166 includes a peeling portion main body 181 formed in a substantially rectangular parallelepiped and a pin 182 attached to the peeling portion main body 181. The peeling unit main body 181 includes a front surface 181a and a back surface 181b, a top surface 181c, a bottom surface 181d, and side surfaces 181e and 181f facing the transport direction X1 and the processing direction X2.
Hereinafter, a direction in which the side surfaces 181e and 181f of the peeling portion main body 181 face each other is referred to as a width direction Y (see FIG. 9).

  As shown in FIG. 10, a screw hole 183 is formed in the upper surface 181 c of the peeling portion main body 181. A fixing screw 190 for attaching the peeling portion 166 to a biasing portion 167a (described later) of the biasing member 167 is screwed into the screw hole 183.

  In addition, a pin fixing recess 184 for fixing the pin 182 is provided at an end of the upper surface 181c of the peeling portion main body 181 on the front surface 181a side. The pin fixing recess 184 has a circular shape in plan, and the diameter thereof is substantially equal to the outer diameter of the pin 182. The pin 182 is inserted and fixed in the pin fixing recess 184. Examples of the method for fixing the pin 182 include press-fitting (fitting), an adhesive, and screwing.

  The length of the pin fixing recess 184 in the depth direction is shorter than the length of the pin 182 in the axial direction. Therefore, the pin 182 inserted into the pin fixing recess 184 protrudes from the upper surface 181 c of the peeling portion main body 181. The end portion of the pin 182 protruding from the upper surface 181c passes through a locking hole 167e described later of the biasing member 167. Thereby, turning about the center line 190C of the fixing screw 190 of the peeling portion 166 as the rotation axis is locked.

  A contact claw 185 is formed at the end of the bottom surface 181d of the peeling portion main body 181 on the front surface 181a side (see FIG. 9). The contact claw 185 protrudes from the center of the bottom surface 181d in the width direction Y. The contact claw 185 contacts the separator 3a (see FIG. 12) of the conductive film 3 attached to the cell 1, and peels the separator 3a from the conductive layer 3b.

  A notch 181g is formed on the side surface 181e of the peeling portion main body 181. The notch 181g occupies substantially the lower half of the side surface 181e, and is open to the back surface 181b and the bottom surface 181d of the peeling portion main body 181. A pair of rollers 186A and 186B showing a specific example of the pair of contact members are rotatably attached to the notch 181g by a fixing screw 191.

  The pair of rollers 186 </ b> A and 186 </ b> B are arranged in the processing direction X <b> 2 (the direction in which the peeling portion 166 approaches the conductive film 3), and rotate around an axis extending in the width direction Y. The width direction Y is parallel to the surface of the cell 1 where the conductive film 3 (conductive layer 3b) is attached, and is perpendicular to the direction in which the peeling portion 166 approaches the conductive film 3.

At least a part of the pair of rollers 186A and 186B protrudes from the tip of the contact claw 185 and contacts the front surface or back surface of the cell 1 or the electrode pattern 1a on the front surface or back surface (see FIG. 12).
An area E sandwiched between the contact portions 186Ac and 186Bc between the pair of rollers 186A and 186B and the cell 1 intersects the center line 190C of the fixing screw 190. That is, the fixing screw 190 is arranged so that the center line 190C intersects the region E sandwiched between the portions where the pair of rollers 186A and 186B are in contact with the cell 1, respectively. Accordingly, even when an urging portion 167a described later pushes down the periphery of the fixing screw 190, one of the pair of rollers 186A and 186B does not float. Therefore, the pair of rollers 186A and 186B can be reliably brought into contact with the front or back surface of the cell 1 or the electrode pattern 1a on the front or back surface.

[Biasing member]
Next, the urging member 167 will be described with reference to FIG.
FIG. 11 is a plan view of the biasing member 167.

  As shown in FIG. 11, the biasing member 167 is formed in a rectangular plate shape. The urging member 167 has eight urging portions 167a and mounting holes 167b. The eight urging portions 167a are spring pieces formed in a cantilever shape by providing a notch 167c in the urging member 167. The eight urging portions 167 a are arranged side by side in the longitudinal direction of the urging member 167. A peeling portion 166 is fixed to each urging portion 167a by a fixing screw 190 (see FIG. 10).

The urging portion 167a is formed with a fixing hole 167d for fixing the peeling portion 166 and a locking hole 167e through which the pin 182 of the peeling portion 166 passes. A fixing screw 190 (see FIG. 10) for fixing the peeling portion 166 to the urging portion 167a passes through the fixing hole 167d. A washer 192 is interposed between the fixing screw 190 and the urging portion 167a and between the urging portion 167a and the peeling portion 166.
Further, the nozzle 168a (see FIG. 8) of the suction portion 168 passes through the notch 167c of the biasing member 167. Thereby, when the urging portion 167a pushes down the periphery of the fixing screw 190, it is possible to prevent the periphery of the urging portion 167a from hitting the upper surface 181c of the peeling portion main body 181 and tilting the peeling portion 166.

  The locking hole 167e of the urging portion 167a is formed in a substantially oval shape (long hole) extending in the longitudinal direction of the urging member (the conveyance direction X1 and the processing direction X2 (see FIG. 8)). The short diameter of the locking hole 167e is substantially equal to the diameter of the pin 182 in the peeling portion 166. Therefore, the movement of the peeling portion 166 in the width direction Y (see FIG. 9) is locked. As a result, the peeling portion 166 can be prevented from rotating about the center line 190C of the fixing screw 190.

  Further, the major diameter of the locking hole 167 e is longer than the diameter of the pin 182 in the peeling portion 166. Therefore, even if the peeling part 166 is displaced following the undulation of the surface to which the conductive film 3 of the cell 1 is attached, the pin 182 can move in the major axis direction of the locking hole 167e. Displacement is not hindered.

  Examples of the material of the urging member 167 include metals such as aluminum, copper, and stainless steel, and synthetic resins such as polyethylene (PE), ABS resin (acrylonitrile butadiene styrene resin), and polycarbonate (PC).

[Operation of separator peeling device]
Next, the operation of the separator peeling unit 106 will be described with reference to FIG.
FIG. 12 is an explanatory diagram for explaining the operation of the separator peeling unit 106.

  The upper peeling block 161 and the lower peeling block 161 (see FIG. 8) in the separator peeling unit 106 are opposite to each other only in the vertical direction, and the other operations are the same. Therefore, in FIG. 12, the lower peeling block 161 of the cell 1 is omitted, and the operation of the upper peeling block 161 will be described as an example.

The cell 1 to which the conductive film 3 is attached is conveyed between the upper and lower peeling blocks 161 and arranged at the processing position.
When the cell 1 is arranged at the processing position, the cylinder 163 (see FIG. 8) operates to move the peeling block 161 in the vertical direction (cell 1 side). Thereby, a pair of roller 186A, 186B of the peeling part 166 contacts the surface of the cell 1 (refer FIG. 12A).

  At this time, since the upper peeling portion 166 is always urged toward the cell 1 by the urging portion 167a of the urging member 167, the height from the surface of the cell 1 to the contact claw 185 in the upper peeling portion 166. Is always fixed. In addition, since the lower peeling portion 166 (not shown) sandwiches the cell 1 with the upper peeling portion 166, the height from the back surface of the cell 1 to the contact claw 185 in the lower peeling portion 166 is defined. Always constant.

  Moreover, each peeling part 166 has a pair of roller 186A, 186B which contacts the surface or back surface of the cell 1, and is urged | biased by the urging | biasing part 167a (refer FIG. 10) at the cell 1 side. Therefore, even if the front and back surfaces of the cell 1 are undulated, the peeling portion 166 can individually follow the undulation and can be displaced in the vertical direction. Further, the pair of rollers 186A and 186B come into contact with the front or back surface of the cell 1, so that the posture of the peeling portion 166 can be stabilized even when the peeling portion 166 is biased toward the cell 1 by the biasing portion 167a. it can.

As a result, even if the thickness of the cells 1 that are sequentially conveyed varies or the surface of the cells 1 is undulated, the contact claws 185 of the peeling portion 166 are securely placed on the side of the separator 3a in the conductive film 3. Can be opposed. Thereby, the peeling part 166 can be made to contact the separator 3a of the electroconductive film 3 reliably, and the peeling leak of the separator 3a can be prevented or suppressed.
Furthermore, the contact between the contact claw 185 of the peeling portion 166 and the conductive layer 3b of the conductive film 3 can be suppressed, and the contact claw 185 can prevent the conductive layer 3b from being damaged.

  When the pair of rollers 186A and 186B of the peeling unit 166 contact the surface of the cell 1, a negative pressure generating unit (not shown) of the suction unit 168 is driven, and vacuum suction by the suction unit 168 is started. The vacuum suction by the suction unit 168 may be started before the peeling block 161 is moved to the cell 1 side, for example.

  Next, the horizontal movement mechanism 171 (see FIG. 2) operates to move the peeling block 161 in the processing direction X2 (see FIG. 12B). Thereby, the contact claw 185 of the peeling part 166 contacts the separator 3a from the side of the conductive film 3, and peels a part of the separator 3a from the conductive layer 3b.

  When a part of the separator 3a is peeled from the conductive layer 3b by the contact claw 185, the cylinder 163 (see FIG. 8) operates to raise the peeling block 161 (see FIG. 12C). At this time, when the peeling block 161 is moved also in the processing direction X2 by the operation of the horizontal movement mechanism 171 (see FIG. 2), the peeling block 161 moves obliquely upward.

  When the peeling block 161 is raised, the contact claw 185 of the peeling portion 166 moves away from the conductive layer 3b. The separator 3a partially peeled off from the conductive layer 3b is peeled off from the conductive layer 3b by being sucked by the suction portion 168.

  In other words, in the separator peeling unit 106 of this example, after part of the separator 3a is peeled off by the contact claw 185 of the peeling portion 166, the separator 3a is sucked by the suction portion 168 and peeled from the conductive layer 3b. Thereby, even if vibration occurs in the peeling block 161, the contact claw 185 of the peeling portion 166 can be prevented from interfering with the conductive layer 3b, and the conductive layer 3b can be prevented from being damaged.

  The embodiment of the separator peeling device and the solar cell module assembling device of the present invention has been described above including the effects thereof. However, the separator peeling apparatus and the solar cell module assembling apparatus of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention described in the claims. Is possible.

  For example, in the separator peeling unit 106 of this example, the separator 3a of the conductive film 3 attached to the cell 1 is peeled from the conductive layer 3b by moving the peeling block 161 (peeling portion) in the processing direction X2. However, the processing direction according to the present invention can be arbitrarily set as long as the direction is parallel to the front and back surfaces of the cell 1. For example, a direction parallel to the front and back surfaces of the cell 1 and orthogonal to the transport direction X1 of the cell 1 may be set as the processing direction. Note that the contact claw 185 of the peeling portion 166 is preferably directed in the processing direction.

  In the separator peeling unit of the present invention, the peeling block 161 and the cell 1 are relatively moved, and the contact claw 185 of the peeling portion 166 is brought into contact with the separator 3a of the conductive film 3 attached to the cell 1. That's fine. For example, by fixing the peeling block 161 and moving the cell 1 in the transport direction X1, the contact claw 185 of the peeling portion 166 is brought into contact with the separator 3a of the conductive film 3 attached to the cell 1. Good.

  Moreover, the separator peeling unit 106 of this example peels the separator 3 a of the conductive film 3 attached to the front and back surfaces of the cell 1. However, the separator peeling apparatus of this invention should just be the structure which peels the separator of the electroconductive film affixed on either the surface of the cell 1, or the back surface.

  Moreover, the separator peeling unit 106 of this example was made into the structure which peels each separator 3a of the some electroconductive film 3 (small piece) affixed on the regulation position of the surface of the cell 1, and a back surface. However, the separator peeling unit of this invention can be used also when peeling the separator 3a of the one electroconductive film 3 affixed along the position where the electric wire in the cell 1 is joined.

  In addition, the separator peeling unit 106 of this example peels the separator 3 a from the conductive film 3 attached to the cell 1. However, the separator peeling unit of the present invention can also be used when peeling the separator 3 a from the conductive film 3 attached to the electric wire 2.

Moreover, the separator peeling unit 106 of this example collects the separator 3a peeled from the conductive layer 3b by the suction part 168. However, as the separator peeling unit of the present invention, the separator 3a may be recovered by being pumped by the pumping unit.
Further, the separator peeling unit of the present invention does not need to use suction or pressure feeding. For example, the separator accommodating portion may be arranged at a portion where the separator 3a peeled by the peeling portion 166 falls. In this case, the peeling block 161 is moved in the processing direction until the separator 3a is peeled from the conductive layer 3b without raising the peeling block 161 on the way.

  Further, the separator peeling unit 106 of this example has a configuration in which the peeling portion 166 has a pair of rollers 186A and 186B that come into contact with the cell 1. However, the member that contacts the cell 1 is not limited to the roller, and a sliding member that slides on the cell may be employed.

  Moreover, the peeling part 166 of the separator peeling unit 106 of this example was set as the structure which has the contact nail | claw 185 formed in the nail | claw shape. However, the part which contacts the separator of the peeling part which concerns on this invention is not limited to nail | claw shape, What is necessary is just the shape caught on a separator.

  Moreover, as a separator peeling unit which concerns on this invention, you may provide the adjustment part which adjusts the position of a pair of roller 186A, 186B with respect to the peeling part main body 181 to the up-down direction. As a result, when using conductive films of different types and different thicknesses of the conductive layer, the distance between the cell 1 and the contact claw 185 is changed, and the contact claw 185 is replaced with the separator 3 a of the conductive film 3. It can be made to oppose a side part.

  Further, the separator peeling unit 106 of this example is configured to have a pair of rollers 186A and 186B. However, in the case where the inclination of the peeling portion main body 181 is not a problem, such as when the distortion of the cell 1 is slight or when the arm length of the urging portion 167a is long, a configuration having one roller as the contact member is used. It is also possible to arrange the roller directly below the center line 190C of the fixing screw 190. In this case, since there is one roller, there is an advantage that the peeling portion main body 181 can be reduced in size and a large number of conductive layers 3b can be attached at a smaller pitch.

  Furthermore, the contact member according to the present invention does not necessarily have a roller-like shape, and can be constituted by, for example, a hook-like member made of smooth ceramic or resin. In the case of such a configuration, the length of the contact portion between the contact member and the cell 1 is secured to some extent, so that it is not necessary to provide a pair of contact members, and there is an advantage that the peeling portion 166 can be simplified. .

  Further, in the separator peeling unit 106 of this example, the number of urging portions 167 a provided on the urging member 167 is the same as the number of peeling portions 166. However, the number of urging parts according to the present invention does not necessarily have to be the same as the number of peeling parts, and is provided to be larger than the number of peeling parts so that the mounting position of the peeling parts can be changed when switching the product type. May be.

  DESCRIPTION OF SYMBOLS 1 ... Cell (solar cell), 2 ... Electric wire, 3 ... Conductive film, 3A ... Remainder piece, 3a ... Separator, 3b ... Conductive layer, 4 ... Cell string, 100 ... Solar cell module assembly apparatus, 101 ... Electric wire supply Unit: 102 ... Electric wire straightening unit, 103 ... Conductive film sticking unit, 104 ... Electric wire cutting unit, 105 ... Cell supply unit, 106 ... Separator peeling device, 107 ... Preheating and temporary pressure bonding unit, 108 ... Main pressure bonding unit, 109 ... Cooling unit, 110 ... Transfer device, 161 ... Peeling block, 162 ... Holding member, 163 ... Cylinder, 164 ... Support member, 165 ... Base part, 166 ... Peeling part, 167 ... Biasing member, 167a ... Biasing part, 167b: mounting hole, 167d: fixing hole, 167e: locking hole, 1 68 ... Suction part, 171 ... Horizontal movement mechanism, 181 ... Peeling part main body, 182 ... Pin, 183 ... Screw hole, 184 ... Recess for pin fixing, 185 ... Contact claw, 186A, 186B ... Roller (contact member), 192 ... Washer, X1 ... transport direction, X2 ... processing direction, Y ... width direction

Claims (9)

Conductivity for peeling the separator of a conductive film having a conductive layer affixed to a solar cell or an electric wire and a separator superimposed on a surface of the conductive layer opposite to the solar cell or electric wire side A separator separator for film,
A peeling portion that contacts the conductive film from the side and peels the separator from the conductive layer;
An urging portion that holds the peeling portion and urges the solar cell or the electric wire side,
A contact member that is attached to the peeling portion and contacts a surface of the solar battery cell or electric wire attached to the conductive layer;
The separator peeling apparatus of the electroconductive film characterized by the above-mentioned. The contact member is parallel to a surface of the solar battery cell or electric wire on which the conductive layer is attached, and an axis extending in a direction orthogonal to the direction in which the peeling portion approaches the conductive film. It is a roller which rotates. The separator peeling apparatus of the electroconductive film of Claim 1 characterized by the above-mentioned. The separator for peeling a conductive film according to claim 1, wherein the urging portion is a spring piece formed in a cantilever shape. A plurality of the peeling portions are provided,
The urging portion is provided in the plate-like member by the same number as the plurality of peeling portions or more than the plurality of peeling portions by cutting out the plate-like member. Item 4. A separator peeling device for a conductive film according to Item 3. The said contact member is a pair of structure, The attachment direction of the said contact member is located in a line in the direction in which the said peeling part approaches the said electroconductive film. Separator peeling apparatus for conductive film. The peeling portion is fixed to the biasing portion by a fixing screw,
The fixing screw is arranged so that a center line thereof intersects a region sandwiched between locations where the pair of contact members are in contact with the surface of the solar battery cell or the electric wire to which the conductive layer is attached. The separator peeling apparatus of the electroconductive film of Claim 5 characterized by these. The peeling portion has a pin that penetrates a through hole provided in the biasing portion,
The said through-hole is formed so that the said peeling part may become long in the direction which approaches the said conductive film. The separator peeling apparatus of the conductive film in any one of Claims 1-6 characterized by the above-mentioned. The separator peeling device for a conductive film according to any one of claims 1 to 7, further comprising a suction unit that collects the separator peeled off from the conductive layer by the peeling unit. A conductive film and a conductive film affixing unit for affixing a conductive film having a separator stacked on one surface of the conductive layer to a solar cell or an electric wire;
A separator peeling unit of a conductive film for peeling the separator from the conductive film affixed to the solar cell or electric wire;
A crimping unit that crimps the solar battery cell and the electric wire via the conductive layer,
The separator peeling unit of the conductive film is
A peeling portion that contacts the conductive film from the side and peels the separator from the conductive layer;
An urging portion that holds the peeling portion and urges the solar cell or the electric wire side,
A contact member that is attached to the peeling portion and contacts a surface of the solar battery cell or electric wire attached to the conductive layer;
A solar cell module assembling apparatus comprising:

Images