JP2006245265A - Manufacturing method of solar cell module and trimming processing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solar cell module with stable quality, by making the excessive part of a resin made sealing member along a contour line of an end edge of a surface protective member accurately fusible, after fusion bonding a solar cell element between the surface protective member and the resin made sealing member, without leaving behind the excessive part of the resin made sealing member which is otherwise to be cut, and by avoiding cutting of a cutting tool into the surface protective member. <P>SOLUTION: The solar cell module performs trimming processing of heating with heating means and removing the excessive part of the resin made sealing member, extended from the surface protective member after fusion bonding of the solar cell element. In the solar cell module, the excessive part 4a is fused by the heating wire 10 by detecting the displacement of a heating wire 10 at fusing of the excessive part 4a due to the movement of the heating wire 10 in the resin made sealing member 4, detecting contact of the heating wire 10 with the surface protective member 2, on the basis of detected values of the displacement, and avoiding the cutting of the heating wire 10 into the surface protective member 2, in accordance with the detection result. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a solar cell module that generates electric power using sunlight by laying it on a roof of a house, a roof of a building, etc., and has a length or width longer than that of the surface protection member and the surface protection member. A solar cell element is sandwiched between a large resin sealing member and the three members are fused by heating and melting, and the resin sealing member after the fusion is the surface The present invention relates to a trimming device for a solar cell module that performs trimming processing of a solar cell module in which a surplus portion extending from a protective member is heated and removed by a heating means.

The solar cell module for generating electric power using sunlight has the above three components by sandwiching a solar cell element between a surface protection member and a resin sealing member having a length or width larger than that of the surface protection member. A structure having a fused structure is often used.
In such a solar cell module, after the solar cell element is fused between the surface protection member and the surface protection member as described above, the excess portion extending from the surface protection member is heated by heating means. A trimming process is performed to remove by heating.

One of the means for performing the trimming process in the solar cell module as described above is a technique provided in Patent Document 1 (Japanese Patent Laid-Open No. 2001-53321).
In this technique, the resin sealing member is placed on the solar cell submodule disposed on the glass substrate, and the resin sealing member is covered with a protective film, and the resin sealing member is softened. After curing through melting, the surplus part consisting of the extending part of the protective film and the extending part extending from the glass substrate due to the melting of the resin sealing member is removed from the resin sealing member. The trimming process is performed so as to be removed by a cutting tool such as a cutter heated to a temperature equal to or higher than the softening point.

Moreover, in patent document 2 (Unexamined-Japanese-Patent No. 2001-121498), in the lamination sheet for printing, the surplus part which is not laminated | stacked on the said base material from the lamination sheet which consists of a base material and the sheet | seat laminated | stacked on it, It is comprised so that it may melt | fuse by the heating wire (heating wire) which is supported by the support member and can be cut in the said lamination sheet.
JP 2001-53321 A JP 2001-121498 A

However, the conventional techniques provided in Patent Documents 1 and 2 have the following problems.
That is, after the solar cell element is fused between the surface protection member and the resin sealing member, an excess part of the resin sealing member extending from the surface protection member is removed by a cutting tool such as a high-temperature heating cutter. At the time of removal by the above, the cutting tool is moved along the contour line of the edge of the surface protection member, so that there is no uncut portion of the resin sealing member, and the surface protection member is removed. It is necessary to avoid the occurrence of cutting of the cutting tool.

However, in the technique of Patent Document 1 (Japanese Patent Laid-Open No. 2001-53321), after the resin sealing member is softened and cured through melting, the resin sealing member extends from the glass substrate. And only means for removing the surplus portion consisting of the extended portion of the protective film with a cutting tool such as a high-temperature heating cutter is shown, and the cutting tool is attached to the edge of the glass substrate (corresponding to the surface protection member). Means for accurately moving along the contour line of the edge to avoid occurrence of uncut portions of the surplus portion of the resin sealing member and incision of the cutting tool into the surface protection member is not shown.
Moreover, in patent document 2 (Unexamined-Japanese-Patent No. 2001-121498), the object is not the solar cell module which is the object of the present invention, but is a laminated sheet for printing, and a base material and a sheet laminated thereon From the laminated sheet consisting of the above, only the means for fusing the surplus portion that is not laminated on the base material with a heating wire (heating filament) is shown. Means for avoiding the occurrence of incision of the cutting tool in the protective member is not shown.

  The present invention has been made in view of such a situation, and its purpose is to surplus the resin sealing member after the solar cell element is fused between the surface protection member and the resin sealing member. The portion can be accurately melted along the contour line of the edge of the surface protection member, the excess portion of the resin sealing member is not left uncut, and the occurrence of cutting of the cutting tool into the surface protection member is avoided. Therefore, it is providing the solar cell module with stable quality.

  In order to solve the problems of the prior art, the invention of claim 1 is configured such that a solar cell element is sandwiched between a surface protection member and a resin sealing member having a length or width larger than that of the surface protection member. The above-mentioned three parties are fused by heating and melting, and after the fusion, the trimming process is performed in which the resin sealing member is heated and removed by the heating means to remove the surplus portion extended from the surface protection member. In the method for manufacturing a battery module, a heating wire is used as the heating means, and the displacement of the heating wire is detected when the surplus portion is blown by moving the heating wire in the resin sealing member. The detected value detects contact of the heating wire with the surface protection member, and avoids cutting of the heating wire into the surface protection member according to the detection result, so that the heating wire melts the surplus portion. Is performed.

In the invention, specifically, it is preferable to configure as in claim 2.
That is, when the heating wire is blown by the heating wire and the displacement of the heating wire becomes larger than a certain displacement, it is determined that the heating wire contacts the surface protection member, and the surface protection of the heating wire is performed. While avoiding the notch | incision to a member, the said heating wire is hold | maintained to the displacement which does not exceed the said fixed displacement, and the said heating wire is moved along the edge of the said surface protection member.

Invention of Claim 3 is invention of the apparatus used for the manufacturing method of the solar cell module which concerns on Claims 1, 2,
A solar cell element is sandwiched between a surface protection member and a resin sealing member having a length or width larger than that of the surface protection member, and the three members are fused, and after the fusion, the resin sealing member In a trimming apparatus for a solar cell module that performs a trimming process in which a surplus portion extending from the surface protection member is removed by heating with a heating means, the heating means is constituted by a heating wire, and the resin sealing Based on a displacement sensor that detects the displacement of the heating wire when the surplus portion is melted by moving the heating wire in the member, and based on the detected value of the displacement from the displacement sensor, the displacement is less than a constant displacement. When it becomes larger, it judges contact of the heating wire with the surface protection member, prevents the heating wire from cutting into the surface protection member, and connects the heating wire with the one of the heating wires. And allowed retention displacement not exceeding a displacement and a control device for moving along the heating wire to the edge of the surface protective member.

According to a fourth aspect of the present invention, in the method for manufacturing a solar cell module, the heating wire is used when the surplus portion is melted by using a heating wire as the heating unit and moving the heating wire in the resin sealing member. The trimming process is performed by changing the movement mode of the heating wire based on the detected value of the temperature.
In the invention, specifically, it is preferable to configure as in claim 5.
That is, when the detected value of the heating wire temperature is equal to or lower than a preset reference temperature, the excess portion is blown while moving the heating wire up and down.

Invention of Claim 6 is invention of the apparatus used for the manufacturing method of the solar cell module which concerns on Claims 4 and 5,
In the solar cell module trimming apparatus, the heating means is constituted by a heating wire, and the temperature of the heating wire at the time of fusing the surplus portion by moving the heating wire in the resin sealing member Based on the temperature sensor to be detected and the detected value of the temperature from the temperature sensor, the heating wire is moved up and down to blow off the surplus portion when the detected temperature value falls below a preset reference temperature And a control device.

  According to a seventh aspect of the present invention, in the method for manufacturing the solar cell module, the heating wire is used as a heating unit, and the heating wire is moved when the surplus portion is melted by moving the heating wire in a resin sealing member. A speed is detected, and a speed control motor for moving the heating wire is controlled so that the actual moving speed becomes a preset target moving speed based on the detected value of the moving speed.

  According to an eighth aspect of the present invention, in the method for manufacturing the solar cell module, a heating wire is used as a heating unit, and the heating wire acts on the heating wire when the surplus portion is blown by moving the heating wire in a resin sealing member. Torque control of a torque control motor that detects the actual tension and adjusts the tension of the heating wire is performed so that the actual tension becomes a preset target tension based on the detected value of the tension.

  The invention of claim 9 is an invention of an apparatus used in the method for manufacturing a solar cell module according to claims 7 and 8, and in the trimming apparatus of the solar cell module, the heating means is constituted by a heating wire and is made of resin. A speed sensor for detecting an actual moving speed of the heating wire at the time of fusing of an excess portion by moving the heating wire in a sealing member; a tension sensor for detecting an actual tension acting on the heating wire; A speed control motor for moving the heating wire; a torque control motor for adjusting the tension of the heating wire; and the speed control so that the actual moving speed becomes a preset target moving speed based on the detected value of the moving speed. The torque of the torque control motor is controlled so that the actual tension becomes a preset target tension based on the detected value of the tension while controlling the speed of the motor. And a control device for performing control.

According to invention of Claim 1 thru | or 3, the solar cell element is pinched | interposed between the surface protection member and the resin sealing member, the three members are fused by heating and melting, and the resin made after the fusion is made. When fusing the surplus portion of the sealing member by moving the heating wire in the resin sealing member, the displacement of the heating wire is detected by a displacement sensor and input to the control device. When the detected value of is greater than a certain displacement, the contact of the heating wire with the surface protection member is judged, so that the heating wire is not cut into the surface protection member, and the heating wire is displaced not exceeding the certain displacement. Since the heating wire is moved along the edge of the surface protection member, the surplus of the resin sealing member after the solar cell element is fused between the surface protection member and the resin sealing member. There are no uncut parts And it is possible to avoid the occurrence cuts the heating wire to the surface protective member, to accurately blown along the contour line of the edge of the surface protective member by heating wire.
Thereby, a solar cell module with stable quality can be obtained.

  According to the inventions of claims 4 to 6, the solar cell element is sandwiched between the surface protection member and the resin sealing member, and the three members are fused by heating and melting. In fusing the surplus portion of the resin sealing member by moving the heating wire in the resin sealing member, the temperature of the heating wire is detected by a temperature sensor and input to the control device. When the detected value of the heating wire temperature is lower than a preset reference temperature, the excess portion is blown while moving the heating wire up and down, so the excess portion is blown at the same position of the heating wire. When a temperature drop of the heating wire is about to occur, the temperature drop of the heating wire is detected, and the excess portion is blown while moving the heating wire up and down, thereby reducing the local temperature drop of the heating wire. To avoid Holding the entire heating wire fusible temperature can be performed blowing of surplus portions, fusing efficiency is improved.

  According to the invention of claims 7 to 9, the solar cell element is sandwiched between the surface protection member and the resin sealing member, and the three members are fused by heating and melting. When fusing the surplus portion of the resin sealing member by moving the heating wire in the resin sealing member, the actual movement speed of the heating wire is detected by the speed sensor and the heating sensor acts on the heating wire. The actual tension is detected and input to the control device. Based on the detected value of the actual moving speed, the control device sets the speed of the speed control motor for moving the heating wire so that the actual moving speed becomes the target moving speed. Since the torque control of the torque control motor for adjusting the heating wire tension is performed so that the actual tension becomes the preset target tension based on the detected value of the tension, the actual moving speed of the heating wire is controlled. Always keep the target moving speed and perform stable fusing with heating wire, prevent the heating wire from slacking and cutting, always keep the heating wire tension at the proper tension and perform trimming process Can do.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
FIG. 1 shows a structure of a solar cell module to which the present invention is applied, (A) is a partial plan view of the solar cell module, (B) is a side view showing a state before fusion of solar cell elements, and (C). Is a side view showing a state after fusing, and (D) is a side view showing a state before trimming processing.
In FIG. 1, reference numeral 1 denotes a solar cell module. This solar cell module 1 includes a surface protection member 2 and a resin sealing member having a length or width larger than that of the surface protection member 2 as shown in FIG. The solar cell element 3 is sandwiched between the solar cell element 3 and the solar cell element 3 between the surface protection member 2 and the resin sealing member 4 by heating and melting the solar cell element 3 as shown in FIG. The element 3 is fused in a sealed state.
After the fusion, an excessive portion 4a is formed in which the end portion of the resin sealing member 4 projects outward from the end surface 2a of the surface protection member 2 as shown in FIG. The operation of cutting the surplus portion 4a along the outer peripheral end surface 2a of the surface protection member 2 is referred to as trimming processing.
The present invention relates to the trimming process of the solar cell module 1.

[First Embodiment]
FIG. 2 is a plan view showing the structure of the trimming device for the solar cell module according to the first embodiment of the present invention.
In FIG. 2, reference numeral 10 denotes a heating wire, and both ends of the heating wire 10 are attached to the opening side end portion of the U-shaped fusing jig 13. A heating wire 10 is stretched between the electrodes 12 of the fusing jig 13. These electrodes 12 are connected to a power source 15 by a conducting wire 15a, and are heated to a high temperature by a current from the power source 15. A fusing jig moving means 21 is attached to the fusing jig 13. The fusing jig moving means 21 is for moving the fusing jig 13 and fusing the surplus portion 4a with the heating wire 10, and may be automatic or manual.
And the displacement sensor 11 is installed in two places (it may be one place) of the longitudinal direction of the said heating wire 10, This displacement sensor 11 is the time of fusing of the surplus part 4a by moving the heating wire 10 The displacement, that is, the amount of deformation of the heating wire 10 is detected. A temperature sensor 20 is provided in association with the heating wire 10, and the temperature sensor 20 detects the temperature of the heating wire 10.
On the other hand, in relation to the displacement sensor 11 and the temperature sensor 20, a control device 22 that performs control to be described later is provided, and the detected value of the heating wire displacement from the displacement sensor 11 and the detection of the heating wire temperature from the temperature sensor 20. The value is configured to be input to the control device 22. The control and calculation results in the control device 22 are displayed on the display device 23.

FIGS. 3A and 3B are explanatory views showing the fusing procedure of the surplus portion by the heating wire, where FIG. 3A shows before fusing, and FIG.
When the surplus portion 4a is fused by the heating wire 10, the fusing jig 13 is moved from the state before fusing shown in FIG. 3A by the fusing jig moving means 21 as shown in FIG. 3B. The heated heating wire 10 is moved to enter the surplus portion 4 a from the direction perpendicular to the end surface 2 a of the surface protection member 2 through the fusing jig 13. Then, the heating wire 10 is moved in the direction of the arrow Y while fusing the surplus portion 4a. When the heating wire 10 reaches and contacts the end surface 2a of the surface protection member 2, the direction of the heating wire 10 is changed to change the end surface 2a. The trimming process is performed according to the outer shape of the surface protection member 2.

At the time of the trimming process by the heating wire 10, the heating wire 10 which is stretched in a non-contact state in FIG. 4A is pressed against the end surface 2a of the surface protection member 2 so as to melt off the surplus portion 4a. Since the surface protection member 2 is hard, the heating wire 10 is deformed by the displacement S from the non-contact state of FIG. 4A as in the contact state shown in FIG.
In the first embodiment, the displacement S is detected by the displacement sensor 11, and the detected value is input to the control device 22 shown in FIG.

FIG. 5 is a block diagram of heating wire movement control in the control device 22.
In FIG. 5, the detected value of the displacement of the heating wire 10 from the displacement sensor 11 is input to the heating wire displacement comparison unit 222 of the control device 22. The control device 22 is provided with a heating wire displacement setting unit 221, an end face arrival determination unit 223, and a fusing jig movement control unit 224. The heating wire displacement setting unit 221 has the heating wire 10 connected to the surface protection member 2. The maximum displacement Sm of the heating wire 10 when contacting the end surface 2a is set.
In the heating wire displacement comparison unit 222, the detected value S of the displacement of the heating wire 10 is compared with the maximum displacement Sm set in the heating wire displacement setting unit 221, and the comparison result is input to the fusing jig movement control unit 224. It has come to be.

In the fusing jig movement control unit 224, when the detected value S reaches the maximum displacement Sm, it is judged that the heating wire 10 is in contact with the end surface 2a of the surface protection member 2, and fusing is performed according to the judgment result. The jig moving means 21 is driven to move the heating wire 10 along the end face 2a. Moreover, the contact judgment result of the heating wire 10 is displayed on the display device 23 every moment.
When the fusing jig moving means 21 is manual, the operator moves and operates the heating wire 10 while looking at the contact judgment result of the heating wire 10 displayed on the display device 23. It will be moved along the end face 2a.

  According to the first embodiment of the present invention, the resin sealing after the solar cell element 3 is sandwiched between the surface protection member 2 and the resin sealing member 4 and the three members are fused by heating and melting. In fusing the surplus portion 4a of the member 4 by moving the heating wire 10 in the resin sealing member 4, the displacement sensor 11 detects the displacement of the heating wire 10 and inputs it to the control device 22 for the control. In the device 22, when the detected displacement value S is larger than a certain displacement (the maximum displacement Sm), the contact of the heating wire 10 with the end surface 2a of the surface protection member 2 is determined, and the surface protection of the heating wire 10 is performed. Since the hot wire 10 is moved along the end surface 2a of the surface protection member 2 while keeping the heat wire 10 at a displacement not exceeding the constant displacement Sm while avoiding the cut into the member 2, the surface protection member 2 and the resin Sealing member 4 There is no uncut portion of the surplus portion 4a of the resin sealing member 4 after the solar cell element 3 is fused in between, and the occurrence of the cutting of the heating wire 10 into the surface protection member 2 is avoided. 10 can be fused accurately along the contour line of the end surface 2a of the surface protection member 2. Thereby, the solar cell module 1 with stable quality is obtained.

[Second Embodiment]
On the other hand, when the surplus portion 4a is trimmed by the heating wire 10 as shown in FIG. 6A, the temperature of the heating wire 10 is locally lowered as shown in FIG. 6B. As a result, the fusing efficiency may be reduced.
However, in the second embodiment of the present invention, the above-described problems are solved by the following means.

FIG. 7 is a block diagram of heating wire temperature control in the control device 22.
In FIG. 7, the detected value of the temperature of the heating wire 10 from the temperature sensor 20 (see FIG. 2) is input to the heating wire temperature comparison unit 225 of the control device 22. In addition to the fusing jig movement control unit 224, the control device 22 includes a heating wire lower limit temperature setting unit 226 and a heating wire vertical movement determination unit 227. The heating wire lower limit temperature setting unit 226 includes the heating wire 10. The allowable lower limit temperature is set.
In the heating wire temperature comparison unit 225, the detected value of the temperature of the heating wire 10 is compared with the allowable lower limit temperature set in the heating wire lower limit temperature setting unit 226, and the comparison result is input to the heating wire vertical movement determination unit 227. It has come to be.

In the heating wire up-and-down movement determination unit 227, when the detected value of the heating wire temperature becomes a low temperature below the allowable lower limit temperature, it is determined that there is a portion where the temperature of the heating wire 10 is locally decreased, The determination result is input to the fusing jig movement control unit 224. In response to the determination result, the fusing jig movement control unit 224 drives the fusing jig movement means 21 and performs the trimming process on the surplus portion 4a while moving the heating wire 10 up and down by the fusing jig movement means 21.
Moreover, the determination result of the temperature drop of the heating wire 10 is displayed on the display device 23 from time to time, and the display value is used when the heating wire 10 is manually operated up and down.
When the fusing jig moving means 21 is manual, the operator moves the heating wire 10 up and down or stops it while watching the determination result of the temperature drop displayed on the display device 23.
FIG. 8 shows a mode of vertical movement of the heating wire 10, (A) shows a situation where the heating wire 10 is moved while moving up and down, and (B) shows a vertical movement of the heating wire 10 as in this embodiment. A comparative example of the heating wire temperature between the case where the heating wire 10 is moved and the case where the heating wire 10 is not moved up and down is shown, and (C) shows an example of the movement locus of the heating wire 10 in the vertical movement.

  According to the second embodiment of the present invention, the solar cell element 3 is sandwiched between the surface protection member 2 and the resin sealing member 4, and the resin sealing after the three members are fused by heating and melting. When fusing the surplus portion 4a of the member 4 by moving the heating wire 10 in the resin sealing member 4, the temperature of the heating wire 10 is detected by the temperature sensor 20 and input to the control device 22, and the control is performed. In the apparatus 22, when the detected value of the heating wire temperature becomes lower than a preset reference temperature (the allowable lower limit temperature), the excess portion 4a is blown while moving the heating wire 10 up and down, so the heating wire 10 When the temperature drop of the heating wire 10 is about to occur by fusing the surplus portion 4a at the same position, the temperature reduction of the heating wire 10 is detected and the surplus portion 4a is blown while moving the heating wire 10 up and down. This Accordingly, to avoid local temperature drop of the heating wire 10, it is possible to perform blowing of excess portion holds the entire heating wire 10 to the fusible temperature, thereby improving the blowing efficiency.

[Third Embodiment]
9 to 10 show a third embodiment of the present invention, in which FIG. 9A is a plan view of the trimming apparatus, and FIG. 9B is a view taken along the arrow Z in FIG. FIG. 10 is a block diagram of heating wire speed control and tension control.
9A and 9B, 14 is a torque control motor, 16a is a supply bobbin that is rotationally driven by the torque control motor 14, 17 is a speed control motor, and 16b is a winding that is rotationally driven by the speed control motor 17. The bobbin 12a is an electrode guide, and the heating wire 10 is fed out by a supply bobbin 16 that is rotationally driven by a torque control motor 14 while the fusing jig 13 is fixed, and the surplus portion 4a of the resin sealing member 4 is trimmed. After the processing, it is wound on a winding bobbin 16b that is rotationally driven by a speed control motor 17.

18 is a speed sensor that detects the actual moving speed of the heating wire 10 when the surplus portion 4a is blown by moving the heating wire 10, 19 is a tension sensor that detects the actual tension acting on the heating wire 10, and 22 is It is a control device.
In FIG. 10, the detected value of the actual moving speed of the heating wire 10 by the speed sensor 18 is input to the speed comparison unit 232 of the control device 22, and the detected value of the actual tension of the heating wire 10 by the tension sensor 19 is calculated by the control device 22. Input to the tension comparison unit 230. The control device 22 includes a reference tension setting unit 231, a reference speed setting unit 233, a torque control unit 234, and a speed control unit 235. The reference speed setting unit 233 includes a target on which the heating wire 10 moves smoothly. The moving speed is set. In addition, the reference tension setting unit 231 is set with an appropriate tension that does not cause the heating wire 10 to be cut at the time of fusing and does not cause slack.
The speed comparison unit 232 compares the detected value of the actual movement speed with the target movement speed, and the comparison result is input to the speed control unit 235. The tension comparison unit 230 compares the actual tension detection value with the appropriate tension, and the comparison result is input to the torque control unit 234.

In the speed control unit 235, based on the comparison result of the speeds, an adjustment amount of the speed control motor 17 is output to the speed control motor 17 so that the actual moving speed of the heating wire 10 becomes the target moving speed. The speed control motor 17 moves the heating wire 10 at the target moving speed.
Further, in the torque control unit 234, based on the comparison result of the tension, the adjustment amount of the output torque of the torque control motor 14 is adjusted so that the tension of the heating wire 10 at the time of fusing becomes the appropriate tension. The torque control motor 14 adjusts the tension of the heating wire 10 to an appropriate tension.

  According to the third embodiment of the present invention, the solar cell element 3 is sandwiched between the surface protection member 2 and the resin sealing member 4, and the resin sealing after the three members are fused by heating and melting. When the surplus portion 4a of the member 4 is melted by moving the heating wire 10 in the resin sealing member 4, the speed sensor 18 detects the actual moving speed of the heating wire 10 and the tension sensor 19 detects the heating wire. The actual tension acting on 10 is detected and input to the control device 22, and the control device 22 is used for moving the heating wire 10 so that the actual moving speed becomes the target moving speed based on the detected value of the actual moving speed. The speed of the speed control motor 17 is controlled, and the torque of the torque control motor 14 for adjusting the tension of the heating wire 10 is adjusted so that the actual tension becomes an appropriate tension set in advance based on the detected value of the tension. Since the control is performed, the actual moving speed of the heating wire 10 can always be maintained at the target moving speed, stable fusing by the heating wire 10 can be performed, and the heating wire 10 can be prevented from being loosened or disconnected. The trimming process can be performed while maintaining the tension of the heat wire 10 at an appropriate tension.

  While the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

1 shows a structure of a solar cell module to which the present invention is applied, (A) is a partial plan view of the solar cell module, (B) is a side view showing a state before fusion of solar cell elements, and (C) is fusion. The side view which shows the back state, (D) is a side view which shows the state before a trimming process. It is a plane block diagram which shows the structure of the trimming processing apparatus of the solar cell module which concerns on 1st Embodiment of this invention. It is explanatory drawing which shows the fusing point of the surplus part by the heating wire in the said 1st Embodiment, (A) is before fusing, (B) has shown in fusing. It is explanatory drawing of the heating wire displacement in the said 1st Embodiment, (A) is a non-contact state, (B) has shown the time of a deformation | transformation. It is a block diagram of the heating wire movement control in the said 1st Embodiment. It is explanatory drawing of the heating wire temperature fall in 2nd Embodiment of this invention, (A) is a top view of a trimming apparatus, (B) is a heating wire temperature diagram. It is a block diagram of the heating wire temperature control in the said 2nd Embodiment. The aspect of the vertical movement of the heating wire in the said 2nd Embodiment is shown, (A) shows the condition where the heating wire is moving up and down, and (B) shows the case where the heating wire is moved up and down and the heating wire. The comparative example of the heating wire temperature with the case of no vertical movement is shown, and (C) shows an example of the movement locus of the vertical movement of the heating wire. 3A and 3B show a third embodiment of the present invention, in which FIG. 3A is a plan view of a trimming apparatus, and FIG. It is a block diagram of speed control and tension control of a heating wire in the third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Solar cell module 2 Surface protection member 2a End surface 3 Solar cell element 4 Resin sealing member 4a Excess part 10 Heating wire 11 Displacement sensor 12 Electrode 13 Fusing jig 14 Torque control motor 16a Supply bobbin 16b Winding bobbin 17 Speed control motor 18 Speed sensor 19 Tension sensor 20 Temperature sensor 21 Fusing jig moving means 22 Control device 23 Display device

Claims (9)

  A solar cell element is sandwiched between a surface protection member and a resin sealing member having a length or width larger than that of the surface protection member, and the three members are fused by heating and melting, and after the fusion, In the method of manufacturing a solar cell module that performs trimming processing in which a resin sealing member extends beyond the surface protection member to remove by heating with a heating unit, a heating wire is used as the heating unit, and the resin The displacement of the heating wire is detected at the time of fusing of the surplus portion by moving the heating wire in the sealing member, and the contact of the heating wire with the surface protection member is detected by the detected value of the displacement, A method for manufacturing a solar cell module, comprising cutting off the surplus portion with the heating wire while avoiding cutting of the heating wire into a surface protection member according to a detection result.   When the heating wire is blown by the heating wire, when the displacement of the heating wire becomes larger than a certain displacement, it is determined that the heating wire contacts the surface protection member, and the heating wire is moved to the surface protection member. 2. The sun according to claim 1, wherein the heating wire is moved along an edge of the surface protection member while the heating wire is kept at a displacement not exceeding the predetermined displacement while the heating wire is kept at a displacement not exceeding the predetermined displacement. Manufacturing method of battery module.   A solar cell element is sandwiched between a surface protection member and a resin sealing member having a length or width larger than that of the surface protection member, and the three members are fused, and after the fusion, the resin sealing member In a trimming apparatus for a solar cell module that performs a trimming process in which a surplus portion extending from the surface protection member is removed by heating with a heating means, the heating means is constituted by a heating wire, and the resin sealing Based on a displacement sensor that detects the displacement of the heating wire when the surplus portion is melted by moving the heating wire in the member, and based on the detected value of the displacement from the displacement sensor, the displacement is less than a constant displacement. When it becomes larger, it judges contact of the heating wire with the surface protection member, prevents the heating wire from cutting into the surface protection member, and connects the heating wire with the one of the heating wires. And allowed retention displacement not exceeding a displacement trimming apparatus of the solar cell module is characterized in that a control device is moved along the heating wire to the edge of the surface protective member.   A solar cell element is sandwiched between a surface protection member and a resin sealing member having a length or width larger than that of the surface protection member, and the three members are fused by heating and melting, and after the fusion, In the method of manufacturing a solar cell module that performs trimming processing in which a resin sealing member extends beyond the surface protection member to remove by heating with a heating unit, a heating wire is used as the heating unit, and the resin The temperature of the heating wire is detected when the surplus portion is blown by moving the heating wire in the sealing member, and the trimming process is performed by changing the heating wire moving mode based on the detected value of the temperature. The manufacturing method of the solar cell module characterized by the above-mentioned.   The method for manufacturing a solar cell module according to claim 4, wherein when the detected value of the temperature is equal to or lower than a preset reference temperature, the surplus portion is melted while moving the heating wire up and down.   A solar cell element is sandwiched between a surface protection member and a resin sealing member having a length or width larger than that of the surface protection member, and the three members are fused, and after the fusion, the resin sealing member In a trimming apparatus for a solar cell module that performs a trimming process in which a surplus portion extending from the surface protection member is removed by heating with a heating means, the heating means is constituted by a heating wire, and the resin sealing Based on a temperature sensor for detecting the temperature of the heating wire at the time of fusing of the surplus portion by moving the heating wire in the member, and the detected value of the temperature based on the detected value of the temperature from the temperature sensor A trimming device for a solar cell module, comprising: a control device that causes the heating wire to move up and down by fusing up and down when the temperature falls below a set reference temperature Processing apparatus.   A solar cell element is sandwiched between a surface protection member and a resin sealing member having a length or width larger than that of the surface protection member, and the three members are fused by heating and melting, and after the fusion, In the method of manufacturing a solar cell module that performs trimming processing in which a resin sealing member extends beyond the surface protection member to remove by heating with a heating unit, a heating wire is used as the heating unit, and the resin A target moving speed in which an actual moving speed of the heating wire is detected when the surplus portion is melted by moving the heating wire in a sealing member, and the actual moving speed is set in advance based on a detection value of the moving speed. The method of manufacturing a solar cell module is characterized by performing speed control of a speed control motor that moves the heating wire so that   A solar cell element is sandwiched between a surface protection member and a resin sealing member having a length or width larger than that of the surface protection member, and the three members are fused by heating and melting, and after the fusion, In the method of manufacturing a solar cell module that performs trimming processing in which a resin sealing member extends beyond the surface protection member to remove by heating with a heating unit, a heating wire is used as the heating unit, and the resin The actual tension acting on the heating wire at the time of fusing of the surplus portion by moving the heating wire in the sealing member is detected, and the actual tension is set to a target tension set in advance based on the detected value of the tension. Thus, a method for manufacturing a solar cell module, comprising performing torque control of a torque control motor for adjusting the tension of the heating wire.   A solar cell element is sandwiched between a surface protection member and a resin sealing member having a length or width larger than that of the surface protection member, and the three members are fused, and after the fusion, the resin sealing member In a trimming apparatus for a solar cell module that performs a trimming process in which a surplus portion extending from the surface protection member is removed by heating with a heating means, the heating means is constituted by a heating wire, and the resin sealing A speed sensor for detecting an actual moving speed of the heating wire at the time of fusing the surplus portion by moving the heating wire in a member; a tension sensor for detecting an actual tension acting on the heating wire; A speed control motor for moving the heat wire, a torque control motor for adjusting the tension of the heating wire, and a target shift in which the actual moving speed is set in advance based on the detected value of the moving speed. A control device for controlling the speed of the speed control motor so as to be a speed, and for controlling the torque of the torque control motor so that the actual tension becomes a preset target tension based on the detected value of the tension. A trimming device for a solar cell module, comprising:

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