JP2012188122A - Multi-stage loading device for solar cell module and method for multi-stage loading of the solar cell module using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable multi-stage loading of solar cell modules and automating of packing them.SOLUTION: The multi-stage loading device 1A that is used when stacking the solar cell modules in multiple stages includes: a rectangular base 11; and holders 21 holding respectively each corner of the solar cell module which is arranged at each corner 12 of the rectangular base 11. The holder 21 is provided with: long-shape outer guide plates 22 arranged vertically at the corners 12 and a long-shape inner guide plate 23 arranged opposing to the outer guide plates 22; a slide plate 24a inserted between these guide plates 22, 23 from upward; and a holder 24 having a holder plate 24b which is formed integrally with slide plates 24c and holds a corner of the solar cell module from downward.

Description

  The present invention relates to a method of stacking solar cell modules in multiple stages for transportation or the like, and more specifically, to multi-stage stacking of solar cell modules suitable for automating the operation of stacking solar cell modules in a multi-stage manner. The present invention relates to a multistage stacking method for solar cell modules using the multistage stacker.

  2. Description of the Related Art Conventionally, a modular plug-in system that securely stores photovoltaic modules (hereinafter referred to as solar cell modules) stacked horizontally is known (see Patent Document 1).

  In this insertion system, solar cell modules are horizontally stacked and packaged using a molded product member 110 shown in FIG.

  Briefly described, the molded product member 110 shown in FIG. 12 is fitted from the side with a column portion 111 formed in a cylindrical shape and a corner portion of a solar cell module extending horizontally from the peripheral side wall of the column portion 111. A holding portion 112 that is open in the horizontal direction for holding and holding, and the upper end surface and the lower end surface of the support column portion 111 are sequentially fitted with different molded product members 111 that are arranged adjacent to each other in the vertical direction. The fitting projection 113 and the fitting recess 114 are provided.

  When the solar cell modules are stacked horizontally using the molded product member 110, first, the sandwiching portions 112 of the molded product member 110 are fitted into the respective corners of the solar cell module, and in this state, the first-stage solar cell module is fitted. Is placed on the pallet. Next, similarly, the sandwiching portions 112 of the molded product member 110 are fitted into the respective corners of the second-stage solar cell module, and in this state, the first-stage solar cell module placed on the pallet is The molded product member 110 fitted into the corner and the molded product member 110 fitted into the corner of the second-stage solar cell module are vertically opposed to each other, and the fitting projection 113 of the lower molded product member 110 is placed. Are fitted with the fitting recess 114 of the upper molded product member 110, and the second-stage solar cell modules are stacked. Such a procedure is repeated a predetermined number of times, and the solar cell modules are stacked horizontally.

  In the insertion system using such a molded product member 110, in Patent Document 1, the molded product member 110 shown in FIG. 12 is suitably used for a solar cell module having a frameless structure without a frame member.

JP 2006-32978 A

  By the way, the solar cell module of the frameless structure has a laminated glass structure of two sheets. However, since the solar cell module is originally for building materials, unlike the glass for liquid crystal, the glass after cutting has some There is a dimensional error. For example, in the case of a large solar cell module having a length of 1400 mm and a width of 1000 mm, the cut glass originally has a dimensional error of about ± 1 mm. Further, there is an error of about 90 ° ± 0.0025 ° to 0.0020 ° even at the squareness of the corner.

  In addition to such errors, when manufacturing a solar cell module with a frameless structure, there is a case where the solar cell substrate (solar cell string) is slightly displaced when sandwiched between two pieces of glass. Considering this, the dimensional error of each produced solar cell module is about 2 to 3 mm at the maximum.

  However, when the solar cell modules are stacked using the molded product member 110 shown in FIG. 12, it is necessary to simultaneously fit the molded product members 110 at the four corners of the solar cell module. Thus, since there is a dimensional error in each solar cell module itself, the molded product members 110 facing each other are also slightly shifted in the horizontal direction. For this reason, even if it is attempted to automate the fitting between the molded product members 110 by a machine, it is necessary to adjust the fitting position of each molded product member 110 with high accuracy. It was. For this reason, conventionally, it has been necessary to manually stack such solar cell modules by an operator.

  The present invention was devised to solve such problems. The purpose of the present invention is to provide a solar battery module multi-stage loader suitable for automating the work of stacking solar battery modules in multiple stages for transportation, etc. An object of the present invention is to provide a multistage loading method of solar cell modules using tools.

  In order to solve the above problems, a multistage stacker for solar cell modules according to the present invention is a multistage stacker used when stacking solar cell modules in multiple stages, and includes a rectangular substrate and each corner of the substrate. And holding members that hold the respective corners of the solar cell module that are arranged on the long-side outer guide plate and the outer guide plate that are erected on the substrate corner. A long inner guide plate disposed opposite to the slide plate, a slide plate inserted between the guide plates from above, and a holding unit that is formed integrally with the slide plate and holds the corners of the solar cell module from the lower side. It is characterized by consisting of a body.

  According to the present invention having such a feature, the arrangement of the holding body that holds each corner (four corners) of the solar cell module is such that the outer guide plate and the inner guide that are erected on each corner of the substrate. It is only necessary to insert the slide plate between the plates so as to drop the slide plate from above. As a result, the holding body integrally formed with the slide plate is accurately placed on each corner of the substrate. Thereafter, the corners of the solar cell module are aligned with the holding bodies at the four corners. Then, the corner portion of the solar cell module can be placed at an accurate position of the holding body simply by placing it from above. Therefore, when automating multi-stage stacking of solar cell modules with an industrial robot, the use of the multi-stage loader of the present invention enables accurate alignment and fine adjustment on the industrial robot side when stacking solar cell modules in multiple stages. Since adjustment is not necessary, automation by an industrial robot can be easily handled.

  Further, according to the multistage stacker of the solar cell module according to the present invention, the outer guide plates are arranged in a pair at predetermined intervals on both side surfaces adjacent to the corners of the substrate, and the inner guide plates are The pair of holders are disposed on the substrate on the inner side of the side surface, and the holding body extends in a direction perpendicular to the inner side surface from the inner side surface of the frame plate, and a frame plate formed in an L shape in plan view. In addition, the solar cell module may be configured to include a holding plate that holds a corner portion of the solar cell module from below, and the slide plate may be integrally formed at both left and right end portions of the frame plate.

  According to such a configuration, although the outer guide plate and the inner guide plate are divided and arranged, the number of members increases, but the member cost can be reduced.

  Further, according to the multistage stacker for solar cell modules according to the present invention, the outer guide plate is formed in an L-shape in plan view arranged along both side surfaces adjacent to the corner of the substrate, and the inner guide A pair of plates are arranged on the substrate on the inner side of the side surface so as to face each piece of the outer guide plate, and the holding body includes a frame plate formed in an L shape in plan view, The holding plate that holds the corner portion of the solar cell module extending from the inner side surface in a direction orthogonal to the inner side surface from the lower side, and the slide plate is integrally formed at both left and right end portions of the frame plate It can be configured.

  According to such a configuration, the strength of the outer guide plate can be improved by integrally forming the outer guide plate in an L shape in plan view. Therefore, when the solar cell modules stacked in multiple stages using the multistage loader of the present invention are packed and transported as they are, the solar cell modules may be displaced in the horizontal direction (lateral direction) due to vibration during transportation. Since the holding body holding the corners of the battery module can be firmly held by the outer guide plate, the lateral shift of the solar cell module can be reliably prevented. In addition, when the solar cell module package packaged in this way is stacked in multiple stages on the truck bed using the outer guide plate as a leg, the outer guide plate is integrally formed in an L shape in plan view. The strength as a leg can be kept sufficiently.

  Further, the multi-stage stacker of the solar cell module according to the present invention is a multi-stage stacker used when stacking the solar cell modules in a multi-stage, and is arranged on a rectangular substrate and each corner of the substrate. A holding member for holding each corner of the solar cell module, and the holding member is a long outer guide plate arranged upright at the corner of the substrate, and the outer side along the outer guide plate. The slide plate includes a slide plate that slides down the inside of the slide plate from above, and a holder that is formed integrally with the slide plate and holds the corners of the solar cell module from below.

  According to the present invention having such a feature, the arrangement of the holding body that holds each corner (four corners) of the solar cell module is arranged inside the outer guide plate that is erected on each corner of the substrate. Along with this, the slide plate of the holding member need only be slid down from above. As a result, the holding body integrally formed with the slide plate is accurately placed on each corner of the substrate. Thereafter, the corners of the solar cell module are aligned with the holding bodies at the four corners. Then, the corner portion of the solar cell module can be placed at an accurate position of the holding body simply by placing it from above. Therefore, when automating the multi-stage stacking operation of the solar cell modules with an industrial robot, by applying the multi-stage stacking method using the multi-stage stacking tool of the present invention, the industrial robot side when stacking the solar cell modules in multiple stages is applied. This eliminates the need for accurate positioning and fine adjustment, and thus can easily cope with automation by an industrial robot.

  Further, according to the present invention, the number of members can be reduced by deleting the inner guide plate, and as a result, the member cost can be reduced. In addition, when solar cell modules stacked in multiple stages using the multistage loader of the present invention are packed and transported as they are, the solar cell modules may be displaced in the horizontal direction (lateral direction) due to vibration during transportation. Since the outer guide plate holds the holding body holding the corners of the battery module from the outside, the lateral shift of the solar cell module can be prevented.

  Further, according to the multistage stacker of the solar cell module according to the present invention, the outer guide plates are arranged in a pair at predetermined intervals on both side surfaces adjacent to the substrate corner, and the holding body is It consists of a frame plate formed in an L shape in plan view, and a holding plate that holds the corners of the solar cell module extending from the inner side of the frame plate in a direction orthogonal to the inner side from the lower side. The slide plate can be integrally formed at both left and right ends of the frame plate.

  According to such a configuration, although the outer guide plate is divided and arranged, the number of members increases, but the member cost can be reduced.

  Moreover, according to the multistage stacker of the solar cell module according to the present invention, the outer guide plate is formed in an L-shape in a plan view arranged along both side surfaces adjacent to the corner of the substrate, and the holding body Is a frame plate formed in an L shape in plan view, and a holding plate that holds a corner portion of the solar cell module that extends from the inner side surface of the frame plate in a direction orthogonal to the inner side surface from below. And the slide plate can be integrally formed at both left and right ends of the frame plate.

  According to such a configuration, the strength of the outer guide plate can be improved by integrally forming the outer guide plate in an L shape in plan view. Therefore, when the solar cell modules stacked in multiple stages using the multistage loader of the present invention are packed and transported as they are, the solar cell modules may be displaced in the horizontal direction (lateral direction) due to vibration during transportation. Since the holding body holding the corners of the battery module can be firmly held by the outer guide plate, the lateral shift of the solar cell module can be reliably prevented. In addition, when the solar cell module package packaged in this way is stacked in multiple stages on the truck bed using the outer guide plate as a leg, the outer guide plate is integrally formed in an L shape in plan view. The strength as a leg can be kept sufficiently.

  Further, the multi-stage stacker of the solar cell module according to the present invention is a multi-stage stacker used when stacking the solar cell modules in a multi-stage, and is arranged on a rectangular substrate and each corner of the substrate. A holding member that holds each corner of the solar cell module, and the holding member is a pair of long inner guide plates that are respectively disposed on the substrates on both sides adjacent to the corners of the substrate. A slide plate that slides down the outside of the inner guide plate from above along the inner guide plate, and a holding body that is formed integrally with the slide plate and holds the corners of the solar cell module from below. It is characterized by consisting of.

  According to the present invention having such a feature, the holding body that holds each corner (four corners) of the solar cell module is arranged outside the inner guide plate that is erected and arranged at each corner of the substrate. Along with this, the slide plate of the holding member need only be slid down from above. As a result, the holding body integrally formed with the slide plate is accurately placed on each corner of the substrate. Thereafter, the corners of the solar cell module are aligned with the holding bodies at the four corners. Then, the corner portion of the solar cell module can be placed at an accurate position of the holding body simply by placing it from above. Therefore, when automating the multi-stage stacking operation of the solar cell modules with an industrial robot, by applying the multi-stage stacking method using the multi-stage stacking tool of the present invention, the industrial robot side when stacking the solar cell modules in multiple stages is applied. This eliminates the need for accurate positioning and fine adjustment, and thus can easily cope with automation by an industrial robot.

  Moreover, according to this invention, a member number can be reduced by deleting an outer side guide plate, As a result, member cost can be reduced. In addition, when solar cell modules stacked in multiple stages using the multistage loader of the present invention are packed and transported as they are, the solar cell modules may be displaced in the horizontal direction (lateral direction) due to vibration during transportation. Since the guide plate hits the corner side surface of the solar cell module and plays a role of stopping, the lateral displacement of the solar cell module can be prevented.

  Moreover, according to the multistage stacker of the solar cell module according to the present invention, the holding body includes a frame plate formed in an L shape in plan view, and a direction perpendicular to the inner side surface from the inner side surface of the frame plate. The extended solar cell module includes a holding plate that holds a corner portion of the solar cell module from below, and the slide plate is integrally formed at both left and right end portions of the frame plate.

  Moreover, according to the multistage stacker for solar cell modules according to the present invention, the holding member may be provided with a pressing member for pressing the upper surface of the corner portion of the stacked solar cell module from above.

  According to such a configuration, when the holding members are stacked in multiple stages, the pressing member provided on the upper holding body presses the corner of the solar cell module placed on the lower holding body from the upper side. It becomes composition. Therefore, when the solar cell modules stacked in multiple stages using the multistage loader of the present invention are packed and transported as they are, even if the solar cell modules vibrate in the vertical direction due to vibration during transportation, the corners of the solar cell modules Since the part is held from the vertical direction, it is possible to reliably prevent the vertical vibration of the solar cell module.

  Moreover, according to the multistage stacker for solar cell modules according to the present invention, the solar cell module is a solar cell module having a frameless structure.

  ADVANTAGE OF THE INVENTION According to this invention, the packing operation | work of the solar cell module of the frameless structure which does not have an aluminum frame member around a solar cell module can be performed efficiently, preventing the glass of a solar cell module from being damaged. .

  Also, a multi-stage stacking method for solar cell modules according to the present invention is a multi-stage stacking method for solar cell modules using the multi-stage stacker having the above-described configuration, wherein the outer guide is erected on each corner of the substrate. A holding body placing step of placing the holding body on each corner of the substrate by inserting the slide plate so as to drop between the plate and the inner guide plate from above; and a solar cell module from above the substrate. The module mounting step of mounting each corner portion of the solar cell module on the holding body mounted on each corner portion of the substrate, and the holding body mounting By repeating the process and the module mounting process a predetermined number of times, a predetermined number of solar cell modules are stacked in a flat state via a predetermined number of holders mounted vertically on each corner of the substrate. It is characterized by comprising a repeating step.

  According to the present invention having such a feature, the arrangement of the holding body that holds each corner (four corners) of the solar cell module is such that the outer guide plate and the inner guide that are erected on each corner of the substrate. It is only necessary to insert the slide plate between the plates so as to drop the slide plate from above. As a result, the holding body integrally formed with the slide plate is accurately placed on each corner of the substrate. Thereafter, the corners of the solar cell module are aligned with the holding bodies at the four corners. Then, the corner portion of the solar cell module can be placed at an accurate position of the holding body simply by placing it from above. Therefore, when automating the multi-stage stacking operation of the solar cell modules with an industrial robot, by applying the multi-stage stacking method using the multi-stage stacking tool of the present invention, the industrial robot side when stacking the solar cell modules in multiple stages is applied. This eliminates the need for accurate positioning and fine adjustment, and thus can easily cope with automation by an industrial robot.

  Moreover, according to the multistage stacking method of solar cell modules according to the present invention, after the repetition step, the packaging step of integrally packaging the substrate, the outer guide plate, the inner guide plate, the holding body and the solar cell module integrally. Furthermore, it can be set as the structure containing.

  According to such a configuration, the solar cell modules stacked in multiple stages can be easily packed.

  Further, according to the multi-stage stacking method of solar cell modules according to the present invention, after the repetition step, the removal step of removing the outer guide plate or the inner guide plate from the substrate, and after the removal step, the substrate, The remaining guide plate, the holding body, and the packing step of packing the entire solar cell module together may be included.

  According to such a configuration, the solar cell modules stacked in multiple stages can be easily packed. In addition, by omitting the packing member, the omitted member (that is, the outer guide plate or the inner guide plate) can be reused as a guide plate again in the next multi-stage loading operation. The member cost of the tool can be reduced.

  Moreover, according to the multi-stage stacking method of solar cell modules according to the present invention, after the repetition step, a removal step of removing the outer guide plate and the inner guide plate from the substrate, and after the removal step, the holding body And a packing step of packing the entire solar cell module together.

  According to such a configuration, the solar cell modules stacked in multiple stages can be easily packed. In addition, by omitting the packing member, the omitted members (that is, the substrate, the outer guide plate, and the inner guide plate) can be reused as the substrate and the guide plate again in the next multi-stage loading operation. The member cost of the multistage loading tool to be used can be greatly reduced.

  Also, a multi-stage stacking method for solar cell modules according to the present invention is a multi-stage stacking method for solar cell modules using the multi-stage stacker having the above-described configuration, wherein the outer guide is erected on each corner of the substrate. A holding body placing step of placing the holding body at each corner of the substrate by sliding down the slide plate along the inside of the outer guide plate from above the plate; and a solar cell module from above the substrate. The module mounting step of mounting each corner portion of the solar cell module on the holding body mounted on each corner portion of the substrate, and the holding body mounting By repeating the process and the module mounting process a predetermined number of times, a predetermined number of solar cell modules are stacked in a flat state via a predetermined number of holders mounted vertically on each corner of the substrate. It is characterized by containing a repeating step of loading.

  According to the present invention having such a feature, the arrangement of the holding body that holds each corner (four corners) of the solar cell module is arranged inside the outer guide plate that is erected on each corner of the substrate. Along with this, the slide plate of the holding member need only be slid down from above. As a result, the holding body integrally formed with the slide plate is accurately placed on each corner of the substrate. Thereafter, the corners of the solar cell module are aligned with the holding bodies at the four corners. Then, the corner portion of the solar cell module can be placed at an accurate position of the holding body simply by placing it from above. Therefore, when automating the multi-stage stacking operation of the solar cell modules with an industrial robot, by applying the multi-stage stacking method using the multi-stage stacking tool of the present invention, the industrial robot side when stacking the solar cell modules in multiple stages is applied. This eliminates the need for accurate positioning and fine adjustment, and thus can easily cope with automation by an industrial robot.

  Further, according to the present invention, the number of members can be reduced by deleting the inner guide plate, and as a result, the member cost can be reduced. In addition, when solar cell modules stacked in multiple stages using the multistage loader of the present invention are packed and transported as they are, the solar cell modules may be displaced in the horizontal direction (lateral direction) due to vibration during transportation. Since the outer guide plate holds the holding body holding the corners of the battery module from the outside, the lateral shift of the solar cell module can be prevented.

  In addition, according to the multi-stage stacking method of solar cell modules according to the present invention, the configuration further includes a packing step of packing the whole of the substrate, the outer guide plate, the holding body and the solar cell module after the repetition step. can do.

  According to such a configuration, the solar cell modules stacked in multiple stages can be easily packed.

  Further, according to the multi-stage stacking method of solar cell modules according to the present invention, the removal step of removing the outer guide plate from the substrate after completion of the repetition step, and the holding body and the solar cell module after completion of the removal step And a packing process for packing all of the above together.

  According to such a configuration, the solar cell modules stacked in multiple stages can be easily packed. Further, by omitting the packing member, the omitted members (that is, the substrate and the outer guide plate) can be reused again as the substrate and the outer guide plate in the next multi-stage loading operation. The member cost of the loading tool can be reduced.

  Also, a multi-stage stacking method for solar cell modules according to the present invention is a multi-stage stacking method for solar cell modules using the multi-stage stacker having the above-described configuration, wherein the inner guides are arranged upright at each corner of the substrate. A holding body placing step of placing the holding body at each corner of the substrate by sliding down the slide plate along the outside of the inner guide plate from above the plate; and a solar cell module from above the substrate. The module mounting step of mounting each corner portion of the solar cell module on the holding body mounted on each corner portion of the substrate, and the holding body mounting By repeating the process and the module mounting process a predetermined number of times, a predetermined number of solar cell modules are stacked in a flat state via a predetermined number of holders mounted vertically on each corner of the substrate. It is characterized by containing a repeating step of loading.

  According to the present invention having such a feature, the holding body that holds each corner (four corners) of the solar cell module is arranged outside the inner guide plate that is erected and arranged at each corner of the substrate. Along with this, the slide plate of the holding body need only be slid down from above. As a result, the holding body integrally formed with the slide plate is accurately placed on each corner of the substrate. Thereafter, the corners of the solar cell module are aligned with the holding bodies at the four corners. Then, the corner portion of the solar cell module can be placed at an accurate position of the holding body simply by placing it from above. Therefore, when automating the multi-stage stacking operation of the solar cell modules with an industrial robot, by applying the multi-stage stacking method using the multi-stage stacking tool of the present invention, the industrial robot side when stacking the solar cell modules in multiple stages is applied. This eliminates the need for accurate positioning and fine adjustment, and thus can easily cope with automation by an industrial robot.

  Moreover, according to this invention, a member number can be reduced by deleting an outer side guide plate, As a result, member cost can be reduced. In addition, when solar cell modules stacked in multiple stages using the multistage loader of the present invention are packed and transported as they are, the solar cell modules may be displaced in the horizontal direction (lateral direction) due to vibration during transportation. Since the guide plate hits the corner side surface of the solar cell module and plays a role of stopping, the lateral displacement of the solar cell module can be prevented.

  Moreover, according to the multi-stage stacking method of solar cell modules according to the present invention, the configuration further includes a packaging step of integrally packaging the substrate, the inner guide plate, the holding body, and the solar cell module after the repetition step. can do.

  According to such a configuration, the solar cell modules stacked in multiple stages can be easily packed.

  Further, according to the multi-stage stacking method of solar cell modules according to the present invention, the removal step of removing the inner guide plate from the substrate after the repetition step, and the holding body and the solar cell module after the removal step are completed. And a packing process for packing all of the above together.

  According to such a configuration, the solar cell modules stacked in multiple stages can be easily packed. Further, by omitting the packing member, the omitted members (that is, the substrate and the inner guide plate) can be reused as the substrate and the inner guide plate again in the next multi-stage loading operation. The member cost of the loading tool can be reduced.

  Moreover, according to the multistage stacking method for solar cell modules according to the present invention, the holding body can be configured to be provided with a pressing member that presses the upper surface of the corner portion of the solar cell module to be stacked from above.

  According to such a configuration, when the holding bodies are stacked in multiple stages, the pressing member provided on the upper holding body causes the corner portion of the solar cell module mounted on the lower holding body to be viewed from the upper side. It becomes a structure to hold down. Therefore, when the solar cell modules stacked in multiple stages using the multistage loader of the present invention are packed and transported as they are, even if the solar cell modules vibrate in the vertical direction due to vibration during transportation, the corners of the solar cell modules Since the part is held from the vertical direction, it is possible to reliably prevent the vertical vibration of the solar cell module.

  Moreover, according to the multistage stacking method for solar cell modules according to the present invention, the solar cell module is a solar cell module having a frameless structure.

  ADVANTAGE OF THE INVENTION According to this invention, the packing operation | work of the solar cell module of the frameless structure which does not have an aluminum frame member around a solar cell module can be performed efficiently, preventing the glass of a solar cell module from being damaged. .

  According to the present invention, the arrangement of the holding member that holds each corner of the solar cell module drops the slide plate from above between the outer guide plate and the inner guide plate that are erected and arranged at each corner of the substrate. It is only necessary to insert the slide plate or slide the slide plate from above along the outer guide plate or the inner guide plate. As a result, the holding body integrally formed with the slide plate is accurately placed on each corner of the substrate. Thereafter, the corners of the solar cell module are aligned with the holding bodies at the four corners. The corner | angular part of a solar cell module can be mounted in the exact position of a holding body only by mounting from upper direction. Therefore, when automating the multi-stage stacking operation of the solar cell modules with an industrial robot, by applying the multi-stage stacking method using the multi-stage stacking tool of the present invention, the industrial robot side when stacking the solar cell modules in multiple stages is applied. This eliminates the need for accurate positioning and fine adjustment, and thus can easily cope with automation by an industrial robot.

It is a perspective view which shows the whole structure of the multistage loading tool of the solar cell module which concerns on Embodiment 1. FIG. FIG. 3 is a partially enlarged plan view of the multistage stacker of the solar cell module according to Embodiment 1. It is a perspective view of the holding body which comprises a multistage loading tool. It is the II sectional view taken on the line of FIG. 2A. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 1. FIG. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 1. FIG. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 1. FIG. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 1. FIG. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 1. FIG. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 1. FIG. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 1. FIG. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 1. FIG. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 1. FIG. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 1. FIG. It is the longitudinal cross-sectional view to which the solar cell module was horizontally stacked in the flat-stacked state using the multistage loading tool of Embodiment 1, and was expanded partially. It is a perspective view which shows the structure of a temporary holding member. It is the perspective view seen from diagonally upward which shows the structure of the other Example of a holding body. It is the perspective view seen from diagonally downward which shows the structure of the other Example of a holding body. It is the II-II sectional view taken on the line of FIG. 6A. FIG. 6B is a partially enlarged vertical sectional view of a state in which solar cell modules are stacked horizontally in a flat stacked state using the multistage stacker shown in FIG. 6A. It is a perspective view which shows the other Example of an outer side guide plate. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 2. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 2. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 2. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 2. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 2. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 2. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 2. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 2. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 2. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 2. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 3. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 3. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 3. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 3. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 3. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 3. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 3. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 3. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 3. It is a perspective view which shows 1 process of the multistage loading method of Embodiment 3. It is the perspective view seen from diagonally upward which shows the other Example of a holding body. It is the perspective view seen from diagonally downward which shows the other Example of a holding body. It is the III-III sectional view taken on the line of FIG. 11A. It is a perspective view which shows the structure of the holding member used for the conventional multistage loading method of a solar cell module.

  Embodiments of the present invention will be described below with reference to the drawings.

  The multistage stacker of the present invention is suitably used for multistage stacking of a solar cell module having a frameless structure that does not have an aluminum frame member. Therefore, in the following embodiments, a case where solar cell modules having a frameless structure are stacked in multiple stages will be described.

<Embodiment 1>
1A and 1B are a perspective view and a partially enlarged plan view showing an overall configuration of a multistage stacker of a solar cell module according to Embodiment 1, and FIGS. 2A and 2B are perspective views of a holder constituting the multistage stacker. It is a figure and sectional drawing.

  The multistage stacker 1A according to the first embodiment holds a rectangular substrate 11 that is slightly larger than the solar cell module and each corner portion of the solar cell module that is disposed at each corner portion 12 of the substrate 11. Holding member 21.

  The holding member 21 includes a long outer guide plate 22 erected and arranged at each corner 12 of the substrate 11, a long inner guide plate 23 disposed opposite to the outer guide plate 22, and these guide plates. And a holding body 24 having a slide plate 24c inserted from above between the guide plates 22 and 23, and a corner portion of the solar cell module by the holding body 24 in which the slide plate 24c is inserted and held between the guide plates 22 and 23. Is to be held from below. In FIG. 1B, in order to make the drawing easy to see, the position of the holding body 24 is slightly shifted with respect to the positions of the outer guide plate 22 and the inner guide plate 23.

  As shown in FIGS. 1A and 1B, a pair of outer guide plates 22 are disposed on both side surfaces 13 and 14 adjacent to the corner 12 of the substrate 11 with a predetermined interval. That is, when viewed two-dimensionally (when viewed from above), the two outer guide plates 22 are arranged so as to be orthogonal to each other along the side surfaces 13 and 14.

  Further, a pair of inner guide plates 23 are arranged on the substrate 11 closer to the inner side than the side surfaces 13 and 14 of the substrate 11. That is, when viewed two-dimensionally (when viewed from above), the two inner guide plates 23 have a certain distance T1 between the opposing outer guide plates 22 and a predetermined distance in the width direction. T2 exists and is arranged so as to be orthogonal. The predetermined interval T2 is set to such an interval that corners of the solar cell module are fitted.

  On the other hand, as shown in FIGS. 2A and 2B, the holding body 24 is extended in a direction perpendicular to the inner side surface from a frame plate 24a formed in an L shape in plan view and the inner side surface of the frame plate 24a. In addition, a rectangular holding plate 24b that holds the corners of the solar cell module from below is provided, and left and right ends of the frame plate 24a are further extended in the horizontal direction to integrally form a slide plate 24c. The thickness W1 of the slide plate 24c is formed to be slightly thinner than the width (fixed interval) T1 of the guide groove 25 formed between the outer guide plate 22 and the inner guide plate 23 facing each other. 24c is provided so as to slide smoothly in the guide groove 25 without substantially rattling. Further, the rectangular holding plate 24b fits between the two inner guide plates 23 (predetermined interval T2).

  Here, the outer guide plate 22 has a structure in which a lower end portion thereof is fixed to each of the side surfaces 13 and 14 of the substrate 11 with a screw member (not shown) (or by a bolt and a nut) with sufficient strength. Incidentally, when fixing with bolts and nuts, the nuts are embedded in the side surfaces 13 and 14 of the substrate 11, bolt insertion holes are formed in the outer guide plate 22, and the bolt insertion holes are formed from the outside of the outer guide plate 22. It can be firmly fixed by screwing it into the nut through the bolt. With such a fixing structure using bolts and nuts, the outer guide plate 22 can be easily removed by removing the bolts at the transfer site, so that the substrate 11 and the outer guide plate 22 can be reused during the next transfer. The same applies to the following second and third embodiments.

  As for the inner guide plate 23, a rectangular through hole 16 is provided in the substrate 11 so that the lower end portion of the inner guide plate 23 is detachably fitted, and the inner guide plate 23 is provided in the through hole 16. The inner guide plate 23 is erected on the substrate 11 by fitting the lower end portion of the inner guide plate 23. Since the inner guide plate 23 has such a fitting and fixing structure, the inner guide plate 23 can be easily removed at the transfer site. Therefore, the inner guide plate 23 is also used together with the substrate 11 and the outer guide plate 22 at the next transfer. Can be reused.

  The holding body 24 is formed by injection molding using a resin such as PP (polypropylene) or ABS (acrylonitrile / butadiene / styrene copolymer). However, it may be formed by processing wood. The outer guide plate 22 and the inner guide plate 23 can also be formed by injection molding using a hard resin such as ABS (acrylonitrile / butadiene / styrene copolymer), but may be formed by processing wood.

  Next, the multi-stage loading method of the first embodiment using the multi-stage loading tool 1A having the above-described configuration will be described with reference to each process chart shown in FIGS. 3A to 3J. However, here, as an example, a case where ten solar cell modules 80 are stacked will be described, but the number of stages is not limited thereto.

  In the first step, as shown in FIG. 3A, the substrate 11 in a state in which the outer guide plate 22 and the inner guide plate 23 are arranged and fixed at each corner 12 is arranged at a predetermined position.

  In the second step (holding body placing step), as shown in FIG. 3B, in the guide groove 25 between the outer guide plate 22 and the inner guide plate 23 arranged upright at each corner 12 of the substrate 11, By inserting the slide plate 24c of the first-stage holding body 24 so as to be dropped from above, the first-stage holding body 24 is placed on each corner 12 of the substrate 11 as shown in FIG. 3C. In the second step, for example, in a state where the holding body 24 is held by a robot hand (not shown), the slide plate 24c of the holding body 24 is inserted into the guide groove 25 between the outer guide plate 22 and the inner guide plate 23 from above. Alignment (the state shown in FIG. 3C), and in a state where it is slightly fitted in the guide groove 25, the holding of the holding body 24 is released (that is, the robot 24 is opened and the holding body 24 is released). Can do. Thereby, the holding body 24 is naturally dropped and placed on the upper surface of the corner portion of the substrate 11 along the guide groove 25 between the guide plates 22 and 23.

  In the third step (module mounting step), as shown in FIGS. 3D and 3E, the solar cell module 80, which is the first stage from the upper side of the substrate 11, is lowered in a horizontal state, thereby each of the solar cell modules 80. The corner portions 81 are respectively placed on the holding plates 24 b of the first-stage holding body 24 placed on the respective corner portions 12 of the substrate 11. As a holding means of the solar cell module 80, for example, the front surface (or back surface) of the solar cell module is adsorbed and held in a horizontal state by an adsorption board, and in this state, the solar cell module is lowered and placed on the holding plate 24b, What is necessary is just to cancel adsorption | suction after mounting completion. Alternatively, both sides of the solar cell module are sandwiched and held horizontally by a magic hand or the like, and in this state, the solar cell module is lowered and placed on the holding plate 24b. You may make it open in a direction and pull out from the lower surface of a solar cell module. Note that such holding means is merely an example, and various conventionally known holding means can be used.

  Thus, the first-stage solar cell module 80 is held in a horizontal state by the first-stage holders 24.

  In the fourth step (holding body placing step), as shown in FIG. 3F, in the guide groove 25 between the outer guide plate 22 and the inner guide plate 23 arranged upright at each corner 12 of the substrate 11, By inserting the slide plate 24c of the second stage holding body 24 so as to drop from above, the second stage holding body 24 is placed on the first stage holding body 24 as shown in FIG. 3G. To do.

  In the fifth step (module mounting step), as shown in FIGS. 3H and 3I, each of the solar cell modules 80 is lowered by lowering the solar cell module 80 in the second stage from above the substrate 11 in a horizontal state. The corner portions 81 are respectively placed on the holding plates 24 b of the second-stage holding body 24 placed on the respective corner portions 12 of the substrate 11.

  Accordingly, the second-stage solar cell module 80 is held in a horizontal state by the second-stage holders 24.

  The fourth step and the fifth step are repeated a predetermined number of times (that is, if the solar cell module 80 is loaded in 10 stages, it is repeated eight more times). This is the same as repeating the second step and the third step 10 times.

  Thereby, as shown in FIG. 3J, ten solar cell modules 80 are stacked horizontally in a flat state.

  In this case, a gap P is generated between the upper and lower solar cell modules 80 as shown in FIG. And since the corner | angular part 81 of the solar cell module 80 is only mounted on the holding | maintenance board 24a of the holding body 24, the solar cell module 80 is between this clearance gap P by vibration at the time of conveyance. Will swing up and down. Here, the reason why the gap P is provided is that a terminal box (not shown) is attached to the back surface side of the solar cell module 80. Therefore, in order to stack the solar cell modules 80 in multiple stages in a horizontal state, at least This is because it is necessary to open a gap larger than the thickness of the terminal box.

  Therefore, in Embodiment 1, after loading in the state shown to FIG. 3J, the process of inserting a buffer member between the solar cell modules 80 stacked in multiple stages may be added before packing. By inserting the buffer member, it is possible to prevent the solar cell module 80 from shaking up and down during transportation.

  Here, as the buffer member, for example, a cube-shaped or columnar piece formed of foamed polystyrene may be inserted between the solar cell modules 80. However, this takes time and is shown in FIG. 5, for example. As described above, the cushioning member 5 having an integral structure formed in a comb shape may be prepared, and this may be integrally inserted into each gap P of the thick battery module 80 stacked in multiple stages from the lateral direction. Therefore, the thickness T31 of each comb tooth portion 51 of the buffer member 5 is formed to be substantially equal to the gap P, and the distance T32 between the comb tooth portions 51 is formed to be substantially equal to the thickness T41 of the solar cell module 80. ing. Thereby, the up-and-down shaking at the time of conveyance can be prevented.

  In addition to this, as a means for preventing vertical shaking, as shown in FIGS. 6A to 6C, the pressing member 6 may be attached in advance to the lower surface of the holding plate 24 a of the holding body 24. The pressing member 6 can also be formed of a foamed polystyrene, a rubber member, or the like. When the solar cell modules 80 are stacked in multiple stages using the holder 24 according to the procedure shown in FIGS. 3A to 3J, the holding plate 24b of the holder 24 is partially enlarged as shown in FIG. The upper surface of the corner portion 81 of the solar cell module 80 placed thereon is pressed from above by the pressing member 6 attached to the lower surface of the holding plate 24b of the holding body 24 stacked thereon. That is, the corner portion 81 of the solar cell module 80 is sandwiched from above and below by the holding plate 24b and the pressing member 6. Thereby, the up-and-down shaking at the time of conveyance can be prevented.

  The use of the buffer member 5 or the presser member 6 described above can be similarly applied to the following second and third embodiments.

  After stacking in the state shown in FIG. 3J in this way, a packing process (not shown) is performed, and the ten solar cell modules 80 held on the multistage stacker 1A are packed together. As a packing method, a conventionally known method may be used. For example, the solar cell module 80 may be integrally packed by covering the periphery of the solar cell module 80 with corrugated cardboard or the like and binding with a resin band.

  In such packaging, Embodiment 1 can consider three packaging methods.

  The packing method 1 is a method in which the substrate 11, the outer guide plate 22, the inner guide plate 23, the holding body 24, and the entire solar cell module 80 are packed together in the multi-stage stacked state shown in FIG. 3J. By collectively packing in this way, it is possible to easily pack the solar cell modules stacked in multiple stages. Further, even when the solar cell module 80 tends to shift in the horizontal direction (lateral direction) due to vibration during transportation, the outer guide plate 22 holds the holding body 24 holding the corner portion 81 of the solar cell module 80 from the outside. Therefore, the lateral shift of the solar cell module 80 can be prevented.

  The packing method 2 performs a removing process of removing all of the outer guide plates 22 or all of the inner guide plates 23 of each corner 12 from the substrate 11 after being stacked in the state shown in FIG. 3J. After the removal step, the substrate 11, the remaining guide plate (outer guide plate 22 or inner guide plate 23), the holding bodies 24 at each corner stacked in multiple stages, and the entire solar cell module 80 stacked in multiple stages are removed. It is a method of packing together. According to such a packing method, by omitting the packing member, the omitted member (that is, the outer guide plate 22 or the inner guide plate 23) can be reused again as a guide plate in the next multistage loading operation. Therefore, the member cost of the multistage loading tool 1A used for multistage loading can be reduced.

  The packing method 3 performs a removal process of removing all of the outer guide plate 22 and the inner guide plate 23 of each corner 12 from the substrate 11 after being stacked in the state shown in FIG. 3J, and after the removal process is completed. In this method, the corner holders 24 stacked in multiple stages and the entire solar cell modules 80 stacked in multiple stages are packed together. According to such a packing method, by omitting the packing member, the omitted members (that is, the substrate 11, the outer guide 22 plate, and the inner guide plate 23) are again returned to the substrate 11 and the guide plate 22 in the next multistage loading operation. , 23, the material cost of the multi-stage stacker 1A used for multi-stage stacking can be greatly reduced.

  According to the multi-stage stacking method of the first embodiment, the arrangement of the holding body 24 that holds each corner (four corners) 81 of the solar cell module 80 is the outer guide that is erected on each corner 12 of the substrate 11. It is only necessary to insert the slide plate 24c of the holding body 24 into the guide groove 25 between the plate 22 and the inner guide plate 23 from above. As a result, the holding body 24 is accurately placed on each corner 12 of the substrate 11, and thereafter, each corner 81 of the solar cell module 80 is aligned with the holding body 24 at the four corners from above. The corner portion 81 of the solar cell module 80 can be placed at an accurate position of the holding body 24 only by being placed. Therefore, when automating the multi-stage stacking operation of the solar cell modules by the industrial robot, the industrial robot for stacking the solar cell modules in multiple stages by applying the multi-stage stacking method using the multi-stage stacker 1A of the first embodiment. This eliminates the need for precise positioning and fine adjustment on the side, and can easily cope with automation by an industrial robot.

  In the first embodiment, a pair of outer guide plates 22 are arranged on both side surfaces 13 and 14 adjacent to the corner portion 12 of the substrate 11 with a predetermined interval, as shown in FIG. The outer guide plates 22 arranged on both side surfaces 13 and 14 may be integrally formed so as to have an L shape in plan view. This also applies to Embodiment 2 described later.

  By integrally forming the outer guide plate 22 in an L shape in plan view, the strength of the outer guide plate 22 can be improved. Accordingly, when the solar cell modules 80 stacked in multiple stages using this multistage stacker 1A are packed and transported as they are, even if the solar cell module 80 tends to shift in the horizontal direction (lateral direction) due to vibration during transportation, Since the holding body 24 holding the corner portion 81 of the solar cell module 80 can be firmly held by the outer guide plate 22, the lateral shift of the solar cell module can be reliably prevented. Further, when the solar cell module package packed in this way is stacked in a plurality of stages on the truck bed using the outer guide plate 22 as a leg, the outer guide plate 22 is integrally formed in an L shape in plan view. Therefore, the strength as a leg can be kept sufficiently.

<Embodiment 2>
Although the illustration of the multistage stacker 1B of the solar cell module according to Embodiment 2 is omitted, the inner guide plate 23 is omitted from the multistage stacker 1A of Embodiment 1, and the other configurations are the configurations of Embodiment 1. Is the same. Accordingly, in the following description, the same members are denoted by the same reference numerals.

  Next, the multi-stage loading method of the second embodiment using the multi-stage loading tool 1B of the second embodiment will be described with reference to the respective process diagrams shown in FIGS. 9A to 9J. However, here, as an example, a case where ten solar cell modules 80 are stacked will be described, but the number of stages is not limited thereto.

  In the first step, as shown in FIG. 9A, the substrate 11 in a state where the outer guide plate 22 is arranged and fixed at each corner 12 is arranged at a predetermined position.

  In the second step (holding body placing step), as shown in FIG. 9B, the holding body 24 that is the first step along the inside of the outer guide plate 22 that is erected and arranged at each corner 12 of the substrate 11. The first stage holding body 24 is placed on each corner 12 of the substrate 11, as shown in FIG. 9B. In this second step, for example, the holding body 24 is held by a robot hand (not shown) (held in the state shown in FIG. 9B), and the slide plate 24c of the holding body 24 is attached inside the outer guide plate 22. The holding body 24 can be placed on the upper surface of the corner of the substrate 11 by sliding down in the state (that is, lowering the robot hand while holding the holding body 24).

  In the third step (module mounting step), as shown in FIGS. 9D and 9E, the solar cell module 80 that is the first stage from the upper side of the substrate 11 is lowered in a horizontal state, whereby each of the solar cell modules 80. The corner portions 81 are respectively placed on the holding plates 24 b of the first-stage holding body 24 placed on the respective corner portions 12 of the substrate 11. The holding means of the solar cell module 80 is as described in the first embodiment.

  Thus, the first-stage solar cell module 80 is held in a horizontal state by the first-stage holders 24.

  In the fourth step (holding body placing step), as shown in FIG. 9F, the holding body 24 that is the second stage along the inside of the outer guide plate 22 that is erected and arranged at each corner 12 of the substrate 11. The second stage holding body 24 is placed on the first stage holding body 24 as shown in FIG. 9G by sliding down the slide plate 24c from above. Specifically, the lower end surfaces of the frame plate 24a and the slide plate 24c of the second stage holding body 24 are placed on the upper end surfaces of the frame plate 24a and the slide plate 24c of the first stage holding body 24.

  In the fifth step (module mounting step), as shown in FIGS. 9H and 9I, each of the solar cell modules 80 is lowered by lowering the solar cell module 80 in the second stage from above the substrate 11 in a horizontal state. The corner portions 81 are respectively placed on the holding plates 24 b of the second-stage holding body 24 placed on the respective corner portions 12 of the substrate 11.

  Accordingly, the second-stage solar cell module 80 is held in a horizontal state by the second-stage holders 24.

  The fourth step and the fifth step are repeated a predetermined number of times (that is, if the solar cell module 80 is loaded in 10 stages, it is repeated eight more times). This is the same as repeating the second step and the third step 10 times.

  As a result, as shown in FIG. 9J, the ten solar cell modules 80 were horizontally stacked in a flat state, and thereafter, a packing process (not shown) was performed and held by the multistage stacker 1B. Ten solar cell modules 80 are packed together. As a packing method, a conventionally known method may be used. For example, the solar cell module 80 may be integrally packed by covering the periphery of the solar cell module 80 with corrugated cardboard or the like and binding with a resin band.

  In such packaging, in the second embodiment, two packaging methods are conceivable.

  The packing method 1 is a method of packing the substrate 11, the outer guide plate 22, the holding body 24, and the solar cell module 80 as a whole in the multi-stage stacked state shown in FIG. 9J. By collectively packing in this way, it is possible to easily pack the solar cell modules stacked in multiple stages. Further, even when the solar cell module 80 tends to shift in the horizontal direction (lateral direction) due to vibration during transportation, the outer guide plate 22 holds the holding body 24 holding the corner portion 81 of the solar cell module 80 from the outside. Therefore, the lateral shift of the solar cell module 80 can be prevented.

  In the packing method 2, after carrying out multi-stage loading in the state shown in FIG. 9J, a removal process for removing all of the outer guide plates 22 of each corner 12 from the substrate 11 is performed, and after completion of this removal process, the multi-stage loading is performed. This is a method of packing the entire holding body 24 at each corner and the entire solar cell module 80 stacked in multiple stages. According to such a packing method, by omitting the packing member, the omitted members (that is, the substrate 11 and the outer guide plate 22) are reused as the substrate 11 and the outer guide plate 22 again in the next multistage loading operation. Therefore, the member cost of the multistage loading tool 1B used for multistage loading can be significantly reduced.

  According to the multistage stacking method of the second embodiment, the arrangement of the holding body 24 that holds each corner (four corners) 81 of the solar cell module 80 is the outer guide that is erected on each corner 12 of the substrate 11. It is only necessary to slide the slide plate 24c of the holding body 24 from above along the inside of the plate 22. As a result, the holding body 24 is accurately placed on each corner 12 of the substrate 11, and thereafter, each corner 81 of the solar cell module 80 is aligned with the holding body 24 at the four corners from above. The corner portion 81 of the solar cell module 80 can be placed at an accurate position of the holding body 24 only by being placed. Therefore, when automating the multi-stage stacking operation of the solar cell modules by the industrial robot, the industrial robot for stacking the solar cell modules in a multi-stage by applying the multi-stage stacking method using the multi-stage stacker 1B of the second embodiment. This eliminates the need for precise positioning and fine adjustment on the side, and can easily cope with automation by an industrial robot.

  Moreover, since the inner guide plate 23 is omitted from the multistage stacker 1A of the first embodiment and the number of members is reduced, the member cost can be reduced.

<Embodiment 3>
Although the illustration of the multistage stacker 1C of the solar cell module according to Embodiment 3 is omitted, the outer guide plate 22 is omitted from the multistage stacker 1A of Embodiment 1, and other configurations are the configurations of Embodiment 1. Is the same. Accordingly, in the following description, the same members are denoted by the same reference numerals.

  Next, the multi-stage loading method of the second embodiment using the multi-stage loading tool 1C of the third embodiment will be described with reference to each process chart shown in FIGS. 10A to 10J. However, here, as an example, a case where ten solar cell modules 80 are stacked will be described, but the number of stages is not limited thereto.

  In the first step, as shown in FIG. 10A, the substrate 11 in a state where the outer guide plate 22 is arranged and fixed at each corner 12 is arranged at a predetermined position.

  In the second step (holding body placing step), as shown in FIG. 10B, the holding body 24 that is the first step along the outside of the inner guide plate 23 that is erected and arranged at each corner 12 of the substrate 11. The first stage holding body 24 is placed on each corner 12 of the substrate 11 as shown in FIG. In the second step, for example, the holding body 24 is held by the robot hand, and the slide plate 24c of the holding body 24 is slid down while being attached to the outside of the inner guide plate 22 (that is, the robot hand The holding body 24 can be placed on the upper surface of the corner portion 12 of the substrate 11.

  In the third step (module placement step), as shown in FIGS. 10D and 10E, the solar cell module 80 that is the first stage from the upper side of the substrate 11 is lowered in a horizontal state, so that each of the solar cell modules 80. The corner portions 81 are respectively placed on the holding plates 24 b of the first-stage holding body 24 placed on the respective corner portions 12 of the substrate 11. The holding means of the solar cell module 80 is as described in the first embodiment.

  Thus, the first-stage solar cell module 80 is held in a horizontal state by the first-stage holders 24.

  In the fourth step (holding body placing step), as shown in FIG. 10F, the holding body 24 that is the second stage along the outside of the inner guide plate 23 that is erected and arranged at each corner 12 of the substrate 11. The second stage holding body 24 is placed on the first stage holding body 24 as shown in FIG. 10G by sliding down the slide plate 24c from above. Specifically, the lower end surfaces of the frame plate 24a and the slide plate 24c of the second stage holding body 24 are placed on the upper end surfaces of the frame plate 24a and the slide plate 24c of the first stage holding body 24.

  In the fifth step (module placement step), as shown in FIGS. 10H and 10I, each solar cell module 80 is lowered by lowering the solar cell module 80 in the second stage from above the substrate 11 in a horizontal state. The corner portions 81 are respectively placed on the holding plates 24 b of the second-stage holding body 24 placed on the respective corner portions 12 of the substrate 11.

  Accordingly, the second-stage solar cell module 80 is held in a horizontal state by the second-stage holders 24.

  The fourth step and the fifth step are repeated a predetermined number of times (that is, if the solar cell module 80 is loaded in 10 stages, it is repeated eight more times). This is the same as repeating the second step and the third step 10 times.

  As a result, as shown in FIG. 10J, the ten solar cell modules 80 were horizontally stacked in a flat state, and thereafter, a packing process (not shown) was performed and held by the multistage stacker 1C. Ten solar cell modules 80 are packed together. As a packing method, a conventionally known method may be used. For example, the solar cell module 80 may be integrally packed by covering the periphery of the solar cell module 80 with corrugated cardboard or the like and binding with a resin band.

  In such packaging, in Embodiment 3, two packaging methods can be considered.

  The packing method 1 is a method in which the substrate 11, the inner guide plate 23, the holding body 24, and the solar cell module 80 are packaged as a whole in the multistage loading state shown in FIG. 10J. By collectively packing in this way, it is possible to easily pack the solar cell modules stacked in multiple stages. Further, even if the solar cell module 80 tends to shift in the horizontal direction (lateral direction) due to vibration during transportation, the inner guide plate 23 hits the side surface of the corner 81 of the solar cell module 80 and plays a role of stoppage. The lateral displacement of the battery module 80 can be prevented.

  In the packing method 2, after carrying out the multi-stage loading in the state shown in FIG. 10J, a removal process for removing all of the inner guide plates 23 of each corner 12 from the substrate 11 is performed. This is a method of packing the entire holding body 24 at each corner and the entire solar cell module 80 stacked in multiple stages. According to such a packing method, by omitting the packing member, the omitted members (that is, the substrate 11 and the inner guide plate 23) are reused as the substrate 11 and the inner guide plate 23 again in the next multistage loading operation. Therefore, the member cost of the multistage loading tool 1C used for multistage loading can be significantly reduced.

  According to the multi-stage stacking method of the third embodiment, the arrangement of the holding body 24 that holds each corner (four corners) 81 of the solar cell module 80 is an inner guide that is erected on each corner 12 of the substrate 11. Along the outside of the plate 23, the slide plate 24c of the holding body 24 only needs to be slid down from above. As a result, the holding body 24 is accurately placed on each corner 12 of the substrate 11, and thereafter, each corner 81 of the solar cell module 80 is aligned with the holding body 24 at the four corners from above. The corner portion 81 of the solar cell module 80 can be placed at an accurate position of the holding body 24 only by being placed. Therefore, when automating the multi-stage stacking operation of the solar cell modules by the industrial robot, the industrial robot for stacking the solar cell modules in a multi-stage by applying the multi-stage stacking method using the multi-stage stacker 1C of the third embodiment. This eliminates the need for precise positioning and fine adjustment on the side, and can easily cope with automation by an industrial robot.

  Moreover, since the outer guide plate 22 is omitted from the multistage stacker 1A of Embodiment 1 to reduce the number of members, the member cost can be reduced.

  In the first to third embodiments, the holding body 24 has a configuration in which the holder 24 is simply placed up and down (that is, a configuration in which no countermeasure is taken against the lateral displacement). A combined structure may be added. Specifically, as shown in FIG. 11A to FIG. 11C, another holding body 24 that is disposed adjacent to the upper and lower ends 24a1 and 24a2 of the frame plate 24a formed in an L shape in plan view is sequentially arranged. A fitting convex part 27 and a fitting concave part 28 for fitting may be provided respectively. In this example, two fitting protrusions 27 are provided, one on each upper end surface 24 a 1 of each piece of the frame plate 24 a, and the fitting recess 28 is provided on the lower end face 24 a 2 of each piece of the frame body 24. Two in total, one for each. Further, the fitting convex portion 27 is tapered so as to become narrower toward the upper end portion, and the tip end portion is formed in a semicircular arc-shaped curved surface, so that the fitting convex portion 27 is disposed adjacent to the upper and lower sides. The other fitting concave portion 28 can be reliably fitted to one fitting convex portion 27 of the two holding bodies 24. That is, with such a fitting structure, as described in the first embodiment, even when the holding body 24 is dropped into the guide groove 25 between the outer guide plate 22 and the inner guide plate 23 from above, the fitting is performed. It is possible to reliably fit the convex portion 27 and the fitting concave portion 28.

  In the first to third embodiments, the outer guide plate 22 is fixed to the substrate 11 from the side surfaces 13 and 14 by screw members or bolts and nuts. It is not limited. For example, similarly to the inner guide plate 23, a through hole may be formed in the vicinity of the side surfaces 13 and 14 of the corner portion 12 of the substrate 11, and the lower end portion of the outer guide plate 22 may be fitted into the through hole and fixed. In this case, in order to improve the strength of the outer guide plate 22, in addition to this structure, a screw member may be screwed and fixed from the side surfaces 13 and 14 of the substrate to the lower side surface of the outer guide plate 22. .

  In addition, embodiment disclosed this time is an illustration in all the points, Comprising: It does not become the basis of limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the description of the scope of claims. Moreover, all the changes within the meaning and range equivalent to a claim are included.

1A to 1C Multi-stage stacker 5 Buffer member 6 Holding member 11 Substrate 12 Corner portion 13, 14 Side surface 16 Through hole 21 Holding member 22 Outer guide plate 23 Inner guide plate 24 Holding body 24a Frame plate 24a1 Upper end surface 24a2 Lower end surface 24b Holding plate 24c Slide plate 25 Guide groove 27 Fitting convex part 28 Fitting concave part 51 Comb tooth part 80 Solar cell module 81 Corner part

Claims (22)

A multistage loading tool used when stacking solar cell modules in multiple stages,
A rectangular substrate and a holding member for holding each corner of the solar cell module disposed at each corner of the substrate,
The holding member is inserted from above into a long outer guide plate that is erected and arranged at the corner of the substrate, a long inner guide plate that is opposed to the outer guide plate, and between these guide plates. And a holding body that is formed integrally with the slide plate and holds the corners of the solar cell module from below. It is a multistage loading tool of the solar cell module according to claim 1,
The outer guide plates are arranged in a pair at predetermined intervals on both side surfaces adjacent to the corner of the substrate,
The inner guide plates are arranged in a pair on the substrate inside the side surface,
The holding body holds, from the lower side, a frame plate formed in an L shape in plan view and a corner portion of the solar cell module extending from the inner side surface of the frame plate in a direction orthogonal to the inner side surface. A holding plate,
The multi-stage stacking device for solar cell modules, wherein the slide plates are integrally formed on both left and right ends of the frame plate. It is a multistage loading tool of the solar cell module according to claim 1,
The outer guide plate is formed in an L shape in plan view arranged along both side surfaces adjacent to the corner portion of the substrate,
The inner guide plates are arranged in a pair on the substrate on the inner side of the side surface so as to face each piece of the outer guide plate,
The holding body holds, from the lower side, a frame plate formed in an L shape in plan view and a corner portion of the solar cell module extending from the inner side surface of the frame plate in a direction orthogonal to the inner side surface. A holding plate,
The multi-stage stacking device for solar cell modules, wherein the slide plates are integrally formed on both left and right ends of the frame plate. A multistage loading tool used when stacking solar cell modules in multiple stages,
A rectangular substrate and a holding member for holding each corner of the solar cell module disposed at each corner of the substrate,
The holding member includes a long outer guide plate that is erected and arranged at a corner of the substrate, a slide plate that slides down from the upper side of the outer slide plate along the outer guide plate, and the slide plate And a holding body that holds the corner of the solar cell module from the lower side. It is a multistage loading tool of the solar cell module according to claim 4,
The outer guide plates are arranged in a pair at predetermined intervals on both side surfaces adjacent to the corner of the substrate,
The holding body holds, from the lower side, a frame plate formed in an L shape in plan view and a corner portion of the solar cell module extending from the inner side surface of the frame plate in a direction orthogonal to the inner side surface. A holding plate,
The multi-stage stacking device for solar cell modules, wherein the slide plates are integrally formed on both left and right ends of the frame plate. It is a multistage loading tool of the solar cell module according to claim 4,
The outer guide plate is formed in an L shape in plan view arranged along both side surfaces adjacent to the corner portion of the substrate,
The holding body holds, from the lower side, a frame plate formed in an L shape in plan view and a corner portion of the solar cell module extending from the inner side surface of the frame plate in a direction orthogonal to the inner side surface. A holding plate,
The multi-stage stacking device for solar cell modules, wherein the slide plates are integrally formed on both left and right ends of the frame plate. A multistage loading tool used when stacking solar cell modules in multiple stages,
A rectangular substrate and a holding member that holds each corner of the solar cell module disposed at each corner of the substrate,
The holding member includes a pair of long inner guide plates respectively disposed on a substrate on an inner side from both side surfaces adjacent to the corner of the substrate, and an outer side of the inner guide plate along the inner guide plate. A multi-stage stacking device for a solar cell module, comprising: a slide plate that slides down from above; and a holder that is formed integrally with the slide plate and holds a corner of the solar cell module from below. It is a multistage loading tool of the solar cell module according to claim 7,
The holding body holds, from the lower side, a frame plate formed in an L shape in plan view and a corner portion of the solar cell module extending from the inner side surface of the frame plate in a direction orthogonal to the inner side surface. A holding plate,
The multi-stage stacking device for solar cell modules, wherein the slide plates are integrally formed on both left and right ends of the frame plate. A multi-stage stacking device for solar cell modules according to any one of claims 1 to 8,
The multi-stage stacker for solar cell modules, wherein the holding member is provided with a pressing member for pressing the upper surface of the corner portion of the solar cell module to be loaded from above. A multi-stage stacking device for solar cell modules according to any one of claims 1 to 9,
The solar cell module is a solar cell module having a frameless structure. A multistage stacking method for solar cell modules using the multistage stacker according to any one of claims 1 to 3,
The holding body is placed on each corner of the substrate by inserting a slide plate from above between the outer guide plate and the inner guide plate arranged upright at each corner of the substrate. Holding body placing step;
Module mounting for mounting each corner of the solar cell module on the holding body mounted on each corner of the substrate by lowering the solar cell module in a horizontal state from above the substrate. Process,
By repeating the holding body placing step and the module placing step a predetermined number of times, a predetermined number of solar cell modules can be flattened via a predetermined number of holding bodies placed vertically on each corner of the substrate. Repeated process of loading in a stacked state;
A multi-stage stacking method for solar cell modules, comprising: It is the multistage loading method of the solar cell module according to claim 11,
A multi-stage stacking method of solar cell modules, further comprising a packing step of packing the substrate, the outer guide plate, the inner guide plate, the holding body and the solar cell module together after the repeating step. It is the multistage loading method of the solar cell module according to claim 11,
After the repetition step, a removal step of removing the outer guide plate or the inner guide plate from the substrate,
A multi-stage stacking method for solar cell modules, further comprising a packaging step of integrally packaging the substrate, the remaining guide plate, the holding body, and the entire solar cell module after the removal step. It is the multistage loading method of the solar cell module according to claim 11,
After the repetition step, a removal step of removing the outer guide plate and the inner guide plate from the substrate,
A multi-stage stacking method for solar cell modules, further comprising: a packaging step of integrally packaging the entire holding body and the solar cell module after the removal step. A multi-stage stacking method for solar cell modules using the multi-stage stacker according to any one of claims 4 to 6,
The holding body is arranged at each corner of the substrate by sliding the slide plate down along the inside of the outer guide plate from above the outer guide plate arranged upright at each corner of the substrate. Holding body placing step;
Module mounting for mounting each corner of the solar cell module on the holding body mounted on each corner of the substrate by lowering the solar cell module in a horizontal state from above the substrate. Process,
By repeating the holding body placing step and the module placing step a predetermined number of times, a predetermined number of solar cell modules can be flattened via a predetermined number of holding bodies placed vertically on each corner of the substrate. Repeated process of loading in a stacked state;
A multi-stage stacking method for solar cell modules, comprising: It is a multistage loading method of the solar cell module according to claim 15,
A multi-stage stacking method for solar cell modules, further comprising a packaging step of integrally packaging the substrate, the outer guide plate, the holding body, and the solar cell module after the repetition step. It is a multistage loading method of the solar cell module according to claim 15,
After the repeating step, a removing step of removing the outer guide plate from the substrate,
A multi-stage stacking method for solar cell modules, further comprising: a packaging step of integrally packaging the entire holding body and the solar cell module after the removal step. A multi-stage stacking method for solar cell modules using the multi-stage stacker according to claim 7 or 8,
The holding body is arranged at each corner of the substrate by sliding the slide plate down along the outside of the inner guide plate from above the inner guide plate arranged upright at each corner of the substrate. Holding body placing step;
Module mounting for mounting each corner of the solar cell module on the holding body mounted on each corner of the substrate by lowering the solar cell module in a horizontal state from above the substrate. Process,
By repeating the holding body placing step and the module placing step a predetermined number of times, a predetermined number of solar cell modules can be flattened via a predetermined number of holding bodies placed vertically on each corner of the substrate. Repeated process of loading in a stacked state;
A multi-stage stacking method for solar cell modules, comprising: A multi-stage loading method for solar cell modules according to claim 18,
A multi-stage stacking method for solar cell modules, further comprising a packaging step of integrally packaging the substrate, the inner guide plate, the holding body, and the solar cell module after the repetition step. A multi-stage loading method for solar cell modules according to claim 18,
A removal step of removing the inner guide plate from the substrate after the repetition step;
A multi-stage stacking method for solar cell modules, further comprising: a packaging step of integrally packaging the entire holding body and the solar cell module after the removal step. A multi-stage stacking method for solar cell modules according to any one of claims 11 to 20,
The solar cell module multi-stage stacking method, wherein the holding body is provided with a pressing member that presses the upper surface of the corner portion of the solar cell module to be loaded from above. It is the multistage loading method of the solar cell module of any one of Claim 11 to Claim 21,
The solar cell module is a solar cell module having a frameless structure.

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