WO2010007659A1 - 端子ボックス及び太陽電池モジュール - Google Patents
端子ボックス及び太陽電池モジュール Download PDFInfo
- Publication number
- WO2010007659A1 WO2010007659A1 PCT/JP2008/062720 JP2008062720W WO2010007659A1 WO 2010007659 A1 WO2010007659 A1 WO 2010007659A1 JP 2008062720 W JP2008062720 W JP 2008062720W WO 2010007659 A1 WO2010007659 A1 WO 2010007659A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lid
- hinge structure
- hinge
- terminal box
- solar cell
- Prior art date
Links
- 210000000078 claw Anatomy 0.000 claims description 38
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000007790 scraping Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 229920001955 polyphenylene ether Polymers 0.000 description 3
- 238000004382 potting Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0226—Hinges
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D11/00—Additional features or accessories of hinges
- E05D11/10—Devices for preventing movement between relatively-movable hinge parts
- E05D11/1028—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open
- E05D11/1078—Devices for preventing movement between relatively-movable hinge parts for maintaining the hinge in two or more positions, e.g. intermediate or fully open the maintaining means acting parallel to the pivot
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D7/00—Hinges or pivots of special construction
- E05D7/10—Hinges or pivots of special construction to allow easy separation or connection of the parts at the hinge axis
- E05D7/1044—Hinges or pivots of special construction to allow easy separation or connection of the parts at the hinge axis in an axial direction
- E05D7/105—Hinges or pivots of special construction to allow easy separation or connection of the parts at the hinge axis in an axial direction requiring a specific angular position
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2999/00—Subject-matter not otherwise provided for in this subclass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Definitions
- the present invention relates to a terminal box that is provided on the back surface of a solar cell module and outputs electric power generated by the solar cell module, and particularly when the solar cell module is installed at a predetermined installation location.
- the present invention relates to a terminal box of a type that performs cable connection work at a place. Moreover, it is related with the solar cell module provided with such a terminal box.
- Such a terminal box for a solar cell module is generally composed of a rectangular box-shaped box body and a lid, and houses electrical components and cable connection devices.
- the lid that closes the opening of the box main body is fitted to the opening of the box main body, and then fixed to the box main body by, for example, screwing four corners. And when connecting the cables, the fastening screws at the four corners were removed and the lid body was removed from the box body.
- the solar cell module is installed at a high place and may be inclined, which is not a good place for the work. For this reason, the lid removed from the box body may be lost during the work, and improvement has been demanded.
- the terminal box is provided on the back surface of the solar cell module, the cable connection work must be performed facing up under the solar cell module, and this work is not easy. There was a need for improvement.
- the terminal box since the terminal box is provided on the back surface of the solar cell module, the connection work of the cable must be performed while facing the bottom of the solar cell module. At this time, the lid body that is pivotally supported at one end as described above hangs down vertically due to its own weight, which becomes an obstacle to work and reduces workability.
- the present invention has been made in view of the above, and the lid body does not hang down. For example, it is possible to improve workability without obstructing work during cable connection work. It aims at obtaining the solar cell module provided with the terminal box and this terminal box.
- the present invention provides a terminal box which is provided on the back surface of a solar cell module and outputs power generated by the solar cell module, and an opening is formed on one surface.
- a box body that has a hinge structure at the end and that houses the output cable connection inside, and a lid-side hinge structure that constitutes the hinge structure together with the hinge structure at the body.
- a hinge that is pivotally supported to open and close the opening of the box body, and the hinge structure maintains the attitude of the lid at a position within a predetermined angle range with respect to the box body. It has a structure.
- the present invention provides a solar cell module having a terminal box for outputting generated power on the back surface, the terminal box having a box shape with an opening formed on one surface and having a hinge structure on the body side at the end. And a lid side hinge structure that constitutes the hinge structure together with the body side hinge structure, and one end is pivotally supported by the hinge structure to open and close the opening of the box body.
- the hinge structure has a posture holding structure that holds the posture of the lid at a position where the lid is within a predetermined angle range with respect to the box body.
- the attitude of the lid can be held at a predetermined angle, the lid does not hang down from the box body, which may be an obstacle to the work, for example, when connecting cables. And there is an effect that workability can be improved.
- FIG. 1 is a perspective view of an embodiment of a terminal box for a solar cell module according to the present invention.
- FIG. 2 is a partially enlarged perspective view showing an enlarged portion of the hinge structure of the terminal box.
- FIG. 3 is a top view of the terminal box with the lid closed.
- FIG. 4 is a side view of the terminal box with the lid closed.
- FIG. 5 is a perspective view of the solar cell module as viewed from the front side.
- FIG. 6 is a perspective view of the solar cell module as seen from the back side.
- FIG. 7 is a perspective view showing a state in which the solar cell module is installed in a building.
- FIG. 8 is a top view showing a state in which a cable is connected to the terminal box.
- FIG. 1 is a perspective view of an embodiment of a terminal box for a solar cell module according to the present invention.
- FIG. 2 is a partially enlarged perspective view showing an enlarged portion of the hinge structure of the terminal box.
- FIG. 3 is
- FIG. 9 is a perspective view of the terminal box showing a state where the lid is closed.
- FIG. 10 is a perspective view of the terminal box showing a state where the lid is opened by 30 °.
- FIG. 11 is a perspective view of the terminal box showing a state in which the lid is opened by 130 °.
- FIG. 12 is a perspective view of the terminal box showing a state where the lid is opened by 180 °.
- FIG. 13 is a partial side view of the hinge structure showing a state where the lid is closed.
- FIG. 14 is a partial side view of the hinge structure showing a state in which the lid is opened by 30 °.
- FIG. 15 is a partial side view of the hinge structure showing a state in which the lid is opened by 130 °.
- FIG. 16 is a partial side view of the hinge structure showing a state in which the lid is opened by 180 °.
- FIG. 17 is a partial top view for explaining the positions of the pair of C-shaped bearings, the convex portion, and the hinge shaft leg portion.
- FIG. 18 is a partial top view showing a state in which a pair of C-shaped bearings are deformed so as to be pressed from both sides to reduce the mutual interval.
- FIG. 19 is a top view of a hinge structure for explaining another example of the posture holding structure.
- FIG. 20 is a partial side view of a hinge structure for explaining another example of the posture holding structure.
- 21 is a cross-sectional view taken along the line BB in FIG. 6 showing a cross section of the solar cell module near the frame.
- FIG. 22 is a top view of the lid-side hinge structure.
- FIG. 23 is a partial cross-sectional side view showing how the lid-side hinge structure and the main body-side hinge structure are fitted together, and the lid-side hinge structure is a cross-sectional view taken along the line CC in FIG.
- FIG. 1 is a perspective view of an embodiment of a terminal box for a solar cell module according to the present invention.
- the terminal box 200 includes a box body 40 having a substantially rectangular parallelepiped box shape whose one surface is entirely open, and a substantially flat lid body 20 that closes the opening of the box body 40. Between the box main body 40 and the lid 20, two sets of hinge structures 10 are provided for rotatably connecting the two.
- the box body 40 has a rectangular parallelepiped box shape having a bottom plate 40a and side plates 40b, 40c, 40d, and 40e surrounding the four sides, and electrical equipment 60 is housed on the inner bottom plate 40a.
- the electrical equipment 60 includes an electrical circuit unit 61 including a terminal plate to which electrical components (not shown) such as bypass diodes and lead wires extending from the solar cell panel are connected, and a terminal block for connecting the electrical circuit unit 61 to an output cable described later. (Output cable connection portion) 62 and a cable base (output cable connection portion) 63 to which a cable inserted from the outside is fixed.
- the terminal box 200 is made of PPE (polyphenylene ether).
- PPE is a highly functional resin excellent in heat resistance, flame retardancy, dimensional stability, mechanical properties, and the like.
- the potting material is filled between the electrical components of the electrical circuit section 61 as in the conventional case. Further, the electric circuit portion 61 filled with the potting material is covered with an inner lid (not shown) as in the conventional case.
- a packing 51 is provided on the entire periphery of the opening of the box body 40.
- a main body side hinge structure 41 that constitutes one side of the hinge structure 10 is provided on one short side of the peripheral edge of the opening.
- Two main body side hinge structures 41 are provided in accordance with the hinge structure 10.
- fastening holes 42 are respectively formed at both corners of the other short side of the peripheral edge of the opening.
- the side plate of the box body 40 is formed with a knockout portion 49 that is broken and becomes a cable hole.
- One knockout portion 49 is formed on each of the side plate 40b and the side plate 40d.
- Two knockout portions 49 are formed on the side plate 40c.
- a fitting groove 52 that fits the packing 51 is formed at the peripheral edge.
- the lid 20 is fitted into the opening of the box body 40 by the fitting groove 52.
- a lid side hinge structure 21 constituting the other side of the hinge structure 10 is provided on the short side of the lid body 20 on the box body 40 side.
- the fastening hole 22 is formed in the both-ends corner part of the other short side of the cover body 20, respectively.
- the hinge structure 10 includes the lid side hinge structure 21 provided on the lid 20 and the main body side hinge structure 41 provided on the box body 40.
- the lid 20 is pivotally supported at one end by the hinge structure 10. That is, the lid 20 is pivotally supported at one end by the hinge structure 10 provided between the lid body 40 and the box body 40 so as to open and close the opening of the box body 40. And when fixing in the obstruct
- FIG. 2 is a partially enlarged perspective view showing the hinge structure of the terminal box 200 in an enlarged manner.
- the lid 20 side is described as the upper side with respect to the box body 40.
- the terminal box 200 is installed and installed in a solar cell module as will be described later.
- the lid 20 is on the lower side.
- the lid-side hinge structure 21 includes a hinge shaft 25 arranged in parallel to the short side with a predetermined interval between the lid 20 and the short side of the lid 20. And a hinge shaft leg 23 that supports both ends of the hinge shaft 25. On the outer peripheral side surface of the hinge shaft 25, a scraping portion 25a described later is formed.
- the main body side hinge structure 41 is composed of a pair of C-shaped bearings (bearings) 45 formed outward from the opening edge of the box main body 40.
- the pair of C-shaped bearings 45 is formed by being sandwiched between a pair of upper claws (first claws) 45A that are formed at predetermined intervals and curved forward from above, and two upper claws 45A.
- the main body side hinge structure 41 supports the lid side hinge structure 21 by inserting the hinge shaft 25 between the upper claw 45A and the lower claw 45B.
- FIG. 3 is a top view of the terminal box with the lid closed.
- FIG. 4 is a side view of the terminal box with the lid closed.
- the side plate of the box body 40 is formed with the knockout portion 49 that is broken and becomes a cable hole.
- the knockout portion 49 is formed in a thin circular shape with a part of the side wall surrounded by an annular groove, and is easily removed by knocking out the disk portion inside the annular groove with a cutting tool or a screwdriver. Cable holes (circular holes) can be formed in
- the knockout portion 49 is formed with a minus groove 49b at the center and a plus groove (annular groove) 49a around the periphery, so that a plus driver as a rod-shaped knockout tool and the tip of the minus driver can be inserted.
- a plus driver as a rod-shaped knockout tool and the tip of the minus driver can be inserted.
- FIG. 5 is a perspective view of the solar cell module as seen from the front side.
- FIG. 6 is a perspective view of the solar cell module as seen from the back side.
- the solar cell module 300 includes a solar cell layer 91 in which a large number of aligned solar cells are connected in series and sealed with resin, and a highly light-transmitting illustration covering the surface of the solar cell layer 91 is illustrated.
- a solar cell panel 95 having a laminated structure in which a front cover member that is not covered and a back surface cover member 94 excellent in weather resistance that covers the back surface of the solar cell layer 91 are laminated, and an outer peripheral edge of the solar cell panel 95 are covered.
- a terminal box 200 attached to the back surface (back surface cover member 94) of the solar cell panel 95.
- the terminal box 200 is provided in the center of the back surface of the solar cell module 300 at a position near one side, the hinge structure 10 is directed outward, and the bottom surface is attached to the solar cell panel 95 and fixed. ing.
- a potting material is applied to the electric circuit portion 61 in a state where the electric equipment 60 is accommodated, and further covered with an inner lid (not shown), the lid body 20 is closed and fastened, and knocked out.
- the portion 49 is not completely punched (not broken).
- FIG. 7 is a perspective view showing a state in which the solar cell module 300 is installed in a building.
- a plurality of solar cell modules 300 are installed side by side on a dedicated mount 301 provided on a roof of a building or the like.
- the solar cell module 300 is usually installed with the surface of the solar cell 91 on the upper side (top side) and the side on which the terminal box 200 is attached on the lower side (ground side).
- a terminal box (not shown) is attached to the back surface of the solar cell module 300. Therefore, the terminal box 200 is installed with the lid 20 on the lower side (ground side).
- FIG. 8 is a top view showing a state in which a cable is connected to the terminal box.
- FIG. 8 shows a state in which the lid 20 is seen through so that the structure related to the cable connection can be clearly understood.
- the terminal box 200 according to the present embodiment is of a type in which after the solar cell module 300 is installed, the cables 71A and 71B are post-wired at the installation location.
- the positive output cable 71A and the negative output cable 71B are passed through the pipe 72 through the box body 40, fixed to the cable base 63, and the ends of the electric wires are connected to the electric circuit unit 61 on the terminal block 62. Cover with an inner lid, and then close the lid 20 and fix it with a fastening screw.
- the other ends of the plus output cable 71A and the minus output cable 71B are connected to another solar cell module or connected to a battery for power storage.
- a plurality of knockout portions 49 are formed on the side facing the hinge structure 10, but any two of them are broken to form a cable hole due to the routing of the cable. In the example of FIG. 8, the case where the knockout portion formed on the two side plates extending in the longitudinal direction is used as the cable hole is shown.
- FIG. 9 is a perspective view of the terminal box showing a state in which the lid 20 is closed.
- FIG. 10 is a perspective view of the terminal box showing a state in which the lid 20 is opened by 30 °.
- FIG. 11 is a perspective view of the terminal box showing a state in which the lid 20 is opened by 130 °.
- FIG. 12 is a perspective view of the terminal box showing a state in which the lid 20 is opened by 180 °.
- the terminal box of the present embodiment is provided with a posture holding structure that holds the posture of the lid 20 at a predetermined angle among all the rotation angles of the lid 20.
- the lid 20 rotates from the closed state (0 °) in FIG. 9 to the 180 ° open state in FIG. 12, and the total rotation angle is 180 °.
- the lid 20 according to the present embodiment is held in a state in which the entire rotation angle is 180 ° and is approximately 130 ° opened as shown in FIG. 11 by the posture holding structure provided in the hinge structure 10. .
- the posture maintaining operation will be described.
- FIG. 13 is a partial side view of the hinge structure 10 corresponding to the portion A of FIG. 4 showing a state in which the lid 20 is closed.
- FIG. 14 is a partial side view of the hinge structure 10 showing a state in which the lid 20 is opened by 30 °.
- FIG. 15 is a partial side view of the hinge structure 10 showing a state in which the lid 20 is opened by 130 °.
- FIG. 16 is a partial side view of the hinge structure 10 showing a state in which the lid 20 is opened by 180 °.
- FIG. 17 is a partial top view for explaining the positions of the pair of C-shaped bearings 45, the convex portions 48 provided on the C-shaped bearings 45, and the hinge shaft leg portions 23.
- FIG. 18 is a partial top view showing a state in which the pair of C-shaped bearings 45 is deformed so as to be pressed from both sides to reduce the mutual interval.
- the operation of the posture holding structure will be described based on the operation from the closed state shown in FIG. 13 to the 180 ° opened state shown in FIG.
- the terminal box 200 is installed horizontally with the lid 20 facing downward.
- the upper pawl 45 ⁇ / b> A of the C-shaped bearing 45 and the hinge shaft leg portion 23 are provided close to each other.
- the outer side surface of the upper claw 45A and the inner side surface of the hinge shaft leg portion 23 are substantially on the same plane with a slight gap therebetween. To do. As shown in FIGS.
- the convex portion 48 that constitutes one of the posture holding structures protrudes toward the hinge shaft leg portion 23 that constitutes the other of the posture holding structure at the tip of the upper claw 45 ⁇ / b> A.
- the convex portions 48 provided on the pair of upper claws 45A respectively protrude outward in the axial direction from the surface including the hinge shaft leg portion 23 (see FIGS. 2 and 17).
- the surface facing the upper claw 45A of the hinge shaft leg 23 is shaded in gray, and the convex portion 48 provided on the upper claw 45A.
- the top surface is hatched with hatching, and the overlapping portion is painted black (see FIG. 15).
- the elastically deformed C-shaped bearing 45 (upper claw 45A) strongly presses the inner surface of the hinge shaft leg portion 23 at the top surface of the convex portion 48 by its restoring force.
- the frictional resistance due to the pressure overcomes the gravity acting on the lid 20 and holds the lid 20 at the angle in the upper state.
- An arc-shaped relief recess 27 is formed on the trajectory through which the projection 48 at the side end of the hinge shaft leg 23 passes.
- the lid 20 is rotated further than the angle at which the lid 20 is to be suspended by its own weight, and when the frictional resistance is lost, the lid 20 attempts to return to the original direction.
- the frictional resistance is eliminated, since the tip of the convex portion 48 contacts the end of the hinge shaft leg 23, the lid 20 is returned to the original direction unless a large force is intentionally applied to the lid 20.
- the lid 20 is held at the angle at this time. Thereafter, the lid 20 can be rotated with a small force to the position of the 180 ° opening.
- the presence of the escape recess 27 determines the angle at which the attitude of the lid 20 is held among all the rotation angles of the lid 20. That is, the relief recess 27 is provided to adjust the angle at which the posture of the lid 20 is maintained.
- the escape recess 27 may be made larger or smaller, and may be provided on the side facing the current position as long as it is on the orbit of the projection 48. When it is not necessary to provide, it is not necessary to provide it.
- the posture holding structure of the present embodiment is based on friction resistance between the top surface of the convex portion 48 and the inner surface of the hinge shaft leg portion 23, and the tip of the convex portion 48 and the hinge shaft leg.
- it is comprised by 2 types of things by the contact with the edge part of the part 23, you may be comprised by any one and of course, you may be comprised by both.
- the pair of C-shaped bearings of the present embodiment is formed with a pair of upper claws 45A that are formed at predetermined intervals and curved forward from above, and are sandwiched between two upper claws 45A.
- the pair of C-shaped bearings may be two bearings that literally form a C-shape.
- the convex portion constituting one of the posture holding structures may be provided at any of the two end portions that are divided into two forks of the C-shaped bearing.
- by forming the convex portion 48 on the upper claw 45A that exists only on the upper side it is possible to make the structure easy to give elasticity.
- the posture maintaining structure is provided on the inner surface of the hinge shaft leg 23 provided on the lid 20 and around the axis of the hinge structure 10 and the box body 40. Since the cover 20 is provided with a convex portion 48 that presses against the inner surface of the hinge shaft leg 23 when the lid 20 is at a predetermined angle with respect to the box main body 40, the cable connection is made without removing the lid 20 from the box main body 40. In addition to the same effect as the conventional one that the work can be performed and the number of screwing is reduced, the lid body 20 can be easily held in a position where it does not become an obstacle to the work, so the workability is further improved.
- a convex part may be provided in the cover body 20 among the attitude
- the surface facing the convex portion may be a convex portion. That is, the lid 20 and the box body 40 may be provided with protrusions that press each other when the lid 20 is at a predetermined angle with respect to the box body 40.
- the hinge structure 10 of the present embodiment is provided on the lid body 20, and a pair of hinge shafts 25 serving as the rotation center of the lid body 20 and a pair of the hinge bodies 25 that are erected on the lid body 20 and support both ends of the hinge shaft 25.
- One of the posture holding structures is provided on the hinge shaft leg portion 23. Since the convex portion is provided on the C-shaped bearing 45 facing the hinge shaft leg portion 23, the posture holding structure can be easily realized based on the hinge structure 10 structure.
- the bearing may not have a bearing opening for attaching and detaching the hinge shaft 25.
- the hinge shaft may be provided on the box body 40, and the bearing may be provided on the lid body 20.
- a convex portion may be provided on the hinge shaft leg portion 23, or a surface facing the convex portion may be provided on the C-shaped bearing 45.
- a pair of upper claws 45A having a predetermined interval is provided.
- the pair of upper claws 45 ⁇ / b> A are disposed adjacent to the inside of the pair of hinge shaft legs 23, and the pair of upper claws 45 ⁇ / b> A are pressed against the convex portions 48 that press the hinge shaft legs 23. Since the pair of upper claws 45A are pressed from both sides with a substantially equal pressing force, a stable opening / closing operation can be performed. Since the pair of upper claws 45A is elastically deformed, the convex structure can be easily realized.
- the pair of upper claws 45 ⁇ / b> A prevents the rotation of the hinge shaft leg portion 23 when the hinge shaft 25 is pivotally supported by the bearing and rotated to a position within a predetermined angle range as a posture holding structure.
- the projection 48 protrudes from the upper claw 45A, and the hinge shaft leg 23 is locked by the projection 48 to hold the posture of the lid 20.
- the pair of upper claws 45A is provided with the hinge shaft leg 23.
- a knockout portion 49 that is broken and becomes a cable hole is formed on the side facing the hinge structure 10. For this reason, even when the lid 20 is held open, it does not interfere with the plus and minus grooves, so that knockout is not adversely affected.
- FIG. 19 is a top view of the hinge structure 10 for explaining another example of the posture holding structure of the present embodiment.
- FIG. 20 is a partial side view of the hinge structure 10 for explaining another example of the posture holding structure of the present embodiment.
- the hinge shaft leg 23 is aligned with the bearing opening of the C-shaped bearing 45 and is slid in one direction of the hinge shaft 25 (left direction in FIG. 19)
- the lid 20 can be attached and detached. Has been.
- the hinge shaft leg portion 23 is supported by the bearing opening of the C-type bearing 45 in a state where the hinge shaft leg portion 23 being attached / detached is sandwiched between the bearing openings of the C-type bearing 45.
- FIG. 21 is a cross-sectional view taken along the line BB of FIG. 6 showing a cross section of the solar cell module near the frame.
- the bearing opening faces the direction in which the lid 20 can be detached by sliding it in a direction parallel to the solar cell panel 95.
- the C-type bearing 45 of the main body side hinge structure 41 opens its bearing opening in a direction parallel to the bottom surface of the box main body 40 (surface parallel to the solar cell module).
- the lid 20 when the lid 20 is attached to the box body 40, the lid 20 can be moved and connected to the box body 40 as indicated by the white arrow in FIG. There is no interference with.
- the C-type bearing 45 of the main body side hinge structure 41 can obtain substantially the same effect by directing the bearing opening to at least the anti-solar cell module side (anti-solar cell panel side).
- FIG. 22 is a top view of the lid-side hinge structure of the present embodiment.
- FIG. 23 is a partial cross-sectional side view showing how the lid side hinge structure and the main body side hinge structure are fitted together.
- the outer peripheral side surface is scraped off by a predetermined axial length with a predetermined width in a predetermined axial region of the entire length of the hinge shaft 25 to form a scraping portion 25a.
- the scraping portions 25a are formed on both outer peripheral side surfaces facing each other across the central axis.
- the portion where the shaving-off portion 25a is formed has a shaft diameter D2 that is slightly smaller than the original shaft diameter D1.
- the scraping portion 25a is formed for the purpose of facilitating passage through the bearing opening of the C-shaped bearing 45, and is provided at least in a portion where the hinge shaft 25 passes through the bearing opening.
- the size of the scraping portion 25a is set to a size that does not hinder the rotation of the hinge shaft 25 within the bearing.
- the shape of the inner peripheral surface of the C-shaped bearing 45 is the same as the shape of the outer peripheral surface of the hinge shaft 25 in order to fit the hinge shaft 25, and a bearing opening is provided to prevent the hinge shaft 25 from coming off. Is slightly smaller than the diameter of the hinge shaft 25.
- the scraping portion 25a is formed at a position facing the central axis, so that the hinge shaft 25 can be easily attached to and detached from the C-shaped bearing 45. Further, since the scraping portion 25a is not made larger than necessary, the shaft diameter D1 works effectively inside the C-shaped bearing 45, and the rotating shaft is not decentered. Does not affect the operation.
- the scraping-off part 25a of this Embodiment is each formed in the two outer peripheral side surfaces which oppose, a predetermined effect can be acquired even if it forms only in any one.
- the scraping portion 25a of the present embodiment is a flat surface but may be formed as a concave surface or a groove.
- the terminal box according to the present invention is useful as a terminal box for a solar cell module, and is particularly suitable for a terminal box that is provided on the back surface of the solar cell module and constitutes the output portion of the solar cell module. Yes.
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Abstract
Description
20 蓋体
21 蓋側ヒンジ構造
22 締結穴
23 ヒンジ軸脚部
25 ヒンジ軸
25a 削ぎ落とし部
27 逃げ凹部
40 ボックス本体
40a 底板
40b,40c,40d,40e 側板
41 本体側ヒンジ構造
42 締結穴
45 C字型軸受(軸受)
45A 上爪(第1の爪)
45B 下爪(第2の爪)
48 凸部
49 ノックアウト部
51 パッキン
52 嵌合溝
60 電気装備
61 電気回路部
62 端子台(出力ケーブル接続部)
63 ケーブル基台(出力ケーブル接続部)
71A プラス出力ケーブル
71B マイナス出力ケーブル
72 プラスチック配管
91 太陽電池セル層
94 裏面カバー部材
95 太陽電池パネル
96 支持フレーム
200 端子ボックス
300 太陽電池モジュール
301 架台
図1は本発明にかかる太陽電池モジュール用の端子ボックスの実施の形態の斜視図である。端子ボックス200は、一面を全面的に開口とした概略直方体箱状のボックス本体40と、このボックス本体40の開口を閉塞する概略平板状の蓋体20とを有している。ボックス本体40と蓋体20との間には、両者を回動自在に連結する2組のヒンジ構造10が設けられている。
Claims (7)
- 太陽電池モジュールの裏面に設けられ該太陽電池モジュールにて生成された電力を出力する端子ボックスにおいて、
一面に開口を形成する箱状を成し端部に本体側ヒンジ構造を有し内部に出力ケーブル接続部を収納するボックス本体と、
前記本体側ヒンジ構造とともにヒンジ構造を構成する蓋側ヒンジ構造を有し、前記ヒンジ構造により一端を軸支されて前記ボックス本体の前記開口を回動自在に開閉する蓋体とを備え、
前記ヒンジ構造は、前記蓋体が前記ボックス本体に対して所定の角度範囲になる位置で前記蓋体の姿勢を保持する姿勢保持構造を有する
ことを特徴とする端子ボックス。 - 前記蓋側ヒンジ構造及び前記本体側ヒンジ構造のいずれか一方は、前記蓋体の回動中心となるヒンジ軸及び該ヒンジ軸の両端を支持する一対のヒンジ軸脚部とを有し、
前記蓋側ヒンジ構造及び前記本体側ヒンジ構造の他方は、所定の間隔を空けて設けられた一対の第1の爪と、前記一対の第1の爪に対向する側に設けられる第2の爪とを有し、前記一対の第1の爪と前記第2の爪の間に前記ヒンジ軸を挟みこんで軸支する軸受であり、
前記一対の第1の爪は、前記姿勢保持構造として前記ヒンジ軸が前記軸受に軸支されて前記所定の角度範囲になる位置に回動される際に前記ヒンジ軸脚部の回動を阻害するように第1の爪から突出する凸部を有し、該凸部で前記ヒンジ軸脚部を係止して前記蓋体の姿勢を保持するとともに、前記一対の第1の爪は、前記ヒンジ軸脚部によって前記凸部が押圧されて、相互の間隔を縮めるように弾性変形し、その復帰力によって前記蓋体の姿勢を保持する
ことを特徴とする請求項1に記載の端子ボックス。 - 前記一対の第1の爪と前記第2の爪とは、前記ヒンジ軸が着脱する軸受開口を、前記ヒンジ軸を含み前記太陽電池モジュールと平行となる面内に向けている
ことを特徴とする請求項2に記載の端子ボックス。 - 前記ヒンジ構造は、前記蓋体の回動軸に沿って複数個設けられ、前記姿勢保持構造は、少なくとも1つの前記ヒンジ構造に設けられている
ことを特徴とする請求項1に記載の端子ボックス。 - 前記ボックス本体は、前記ヒンジ構造が形成された側板と対向する側の側板に、破断されてケーブル孔となるノックアウト部が形成されている
ことを特徴とする請求項1に記載の端子ボックス。 - 前記ヒンジ軸は、外周面の一部が軸方向に削ぎ落とされている
ことを特徴とする請求項3に記載の端子ボックス。 - 生成された電力を出力する端子ボックスを裏面に有する太陽電池モジュールにおいて、
前記端子ボックスは、
一面に開口を形成する箱状を成し端部に本体側ヒンジ構造を有し内部に出力ケーブル接続部を収納するボックス本体と、
前記本体側ヒンジ構造とともにヒンジ構造を構成する蓋側ヒンジ構造を有し、前記ヒンジ構造により一端を軸支されて前記ボックス本体の前記開口を回動自在に開閉する蓋体とを備え、
前記ヒンジ構造は、前記蓋体が前記ボックス本体に対して所定の角度範囲になる位置で前記蓋体の姿勢を保持する姿勢保持構造を有する
ことを特徴とする太陽電池モジュール。
Priority Applications (3)
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US12/995,033 US8471145B2 (en) | 2008-07-14 | 2008-07-14 | Terminal box and solar cell module |
PCT/JP2008/062720 WO2010007659A1 (ja) | 2008-07-14 | 2008-07-14 | 端子ボックス及び太陽電池モジュール |
JP2010520698A JP5279829B2 (ja) | 2008-07-14 | 2008-07-14 | 端子ボックス及び太陽電池モジュール |
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PCT/JP2008/062720 WO2010007659A1 (ja) | 2008-07-14 | 2008-07-14 | 端子ボックス及び太陽電池モジュール |
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WO (1) | WO2010007659A1 (ja) |
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US20110073157A1 (en) | 2011-03-31 |
JPWO2010007659A1 (ja) | 2012-01-05 |
US8471145B2 (en) | 2013-06-25 |
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