CN113452309B - Connecting piece, photovoltaic board coupling assembling and BIPV roofing system - Google Patents

Connecting piece, photovoltaic board coupling assembling and BIPV roofing system Download PDF

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Publication number
CN113452309B
CN113452309B CN202111023716.XA CN202111023716A CN113452309B CN 113452309 B CN113452309 B CN 113452309B CN 202111023716 A CN202111023716 A CN 202111023716A CN 113452309 B CN113452309 B CN 113452309B
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CN
China
Prior art keywords
piece
photovoltaic panel
photovoltaic
water chute
water
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CN202111023716.XA
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Chinese (zh)
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CN113452309A (en
Inventor
谢禹
苏渊伟
胡雪蛟
罗菁
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Shenzhen Antaike Clean Energy Co ltd
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Shenzhen Antaike Energy And Environmental Protection Co ltd
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Priority to CN202111023716.XA priority Critical patent/CN113452309B/en
Publication of CN113452309A publication Critical patent/CN113452309A/en
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    • 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
    • H02S20/00—Supporting structures for PV modules
    • H02S20/20—Supporting structures directly fixed to an immovable object
    • H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
    • H02S20/23—Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/064—Gutters
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • 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

Abstract

The embodiment of the invention discloses a connecting piece, a photovoltaic panel connecting assembly and a BIPV roof system. The connecting piece with compress tightly the space between the piece and be used for holding the photovoltaic board, be equipped with on the connecting piece be used for the screens of butt photovoltaic board side and with fastener matched with inclined plane, the connecting piece with compress tightly the piece and be close to relatively, and then drive the screens along the direction on perpendicular inclined plane to the direction that deviates from the inclined plane and remove, extrude the photovoltaic board to the center from the side of photovoltaic board. The photovoltaic panel connecting assembly provided by the invention can provide acting force and fix the photovoltaic assembly in the up-down direction, the left-right direction, so that the fixing effect is stable, and the fixing effect of the photovoltaic panel is enhanced.

Description

Connecting piece, photovoltaic board coupling assembling and BIPV roofing system
Technical Field
The invention relates to the technical field of building integration, in particular to a connecting piece, a photovoltaic panel connecting assembly and a BIPV roof system.
Background
Building Integrated Photovoltaics (BIPV) is a technology for integrating Photovoltaic panels into buildings. One embodiment is an integrated roof formed by combining and splicing an assembly with a frame and a drainage structure. Common mounting structure mainly contains crisscross girder (vertically), secondary beam (transversely) and purlin, and the purlin not only will play the effect of fixed subassembly to on the secondary beam, but also will play the water chute in space between the subassembly frame.
The fixed mode between photovoltaic board and the purlin on the existing market is mainly for pressing the sign indicating number installation, and roof upper portion installation can be followed to this kind of mounting means, convenient and fast, but presses sign indicating number and the relative photovoltaic board of purlin can only provide vertical pressure and the horizontal frictional force on the contact surface, can only press from both sides tight fixedly from the upper and lower two sides of photovoltaic board promptly, is difficult to oppose the deformation or the displacement of a plurality of directions that photovoltaic board probably produced under actual operating condition, and fixed effect is unsatisfactory.
Disclosure of Invention
In view of the above, the invention provides a connecting piece, a photovoltaic panel connecting assembly and a BIPV roof system, which are used for solving the problem that the fixing effect is not ideal when a photovoltaic panel is installed in the prior art.
The connecting piece is used for connecting a first photovoltaic plate and a second photovoltaic plate which are arranged at intervals, and comprises a bottom, and a first connecting part and a second connecting part which are respectively formed by extending from two ends of the bottom towards the direction close to the first photovoltaic plate and the second photovoltaic plate;
one surface, far away from the second connecting part, of the first connecting part forms a first clamping position matched with a corner of the side end of the first photovoltaic panel, and one surface, close to the second connecting part, of the first connecting part forms a first inclined surface;
one surface of the second connecting part, which is far away from the first connecting part, forms a second clamping position matched with a corner of the side end of the second photovoltaic panel, and one surface of the second connecting part, which is close to the first connecting part, forms a second inclined surface;
the distance between the first inclined plane and the second inclined plane is gradually reduced along the direction far away from the bottom, the first connecting part, the second connecting part and the bottom enclose a first water chute with the same extending direction as the connecting piece, and the opening of the first water chute is used for being connected with a fixing piece to fix the top of the connecting piece.
Optionally, the first clamping position is provided with a first bearing surface and a first limiting surface, the first bearing surface is parallel to the bottom of the connecting piece, and the first limiting surface extends perpendicular to the first bearing surface in a direction away from the bottom and is used for abutting against the side surface of the first photovoltaic panel;
the second screens are provided with a second bearing surface and a second limiting surface, the second bearing surface is parallel to the bottom of the connecting piece, the second limiting surface is perpendicular to the second bearing surface, the second bearing surface is far away from the direction of the bottom, and the second bearing surface extends to abut against the side face of the second photovoltaic panel.
Optionally, a second water chute and a third water chute are respectively arranged on two sides of the first water chute in the extending direction, the second water chute and the third water chute are respectively arranged at intervals with the first water chute, the side wall of the second water chute close to the first water chute is connected with one side of the first bearing surface far away from the first connecting part, and the side wall of the third water chute close to the first water chute is connected with one side of the second bearing surface far away from the second connecting part;
the second water guide groove is close to the side wall of the first water guide groove, a first connecting groove is formed between the first connecting portion and the side wall of the third water guide groove, a second connecting groove is formed between the second connecting portion and the side wall of the first water guide groove, and the opening directions of the first connecting groove and the second connecting groove are opposite to the opening direction of the first water guide groove and used for fixing the bottom of the connecting piece.
Optionally, the bottom of the first water guiding groove, the bottom of the second water guiding groove and the bottom of the third water guiding groove are all located on the same plane, and the first connecting groove and the second connecting groove are both T-shaped grooves with opening widths smaller than the inner width.
A photovoltaic panel connecting assembly is used for connecting a first photovoltaic panel and a second photovoltaic panel which are arranged at intervals and comprises a connecting piece and a fixing piece, wherein the fixing piece comprises a pressing piece, a fastening piece and a locking piece;
a first accommodating space for accommodating the side end of the first photovoltaic panel is enclosed by the first clamping position and one end of the pressing piece, and a second accommodating space for accommodating the side end of the second photovoltaic panel is enclosed by the second clamping position and the other end of the pressing piece;
one end of the fastener expands to form an abutting part, the abutting part is arranged between the first inclined plane and the second inclined plane, and the abutting part is abutted against the first inclined plane and the second inclined plane respectively;
the locking piece is abutted with the pressing piece;
the other end of the fastening piece is connected with the locking piece, and the fastening piece and the locking piece move relatively, so that the connecting piece and the pressing piece are relatively close to each other.
Optionally, when the connecting piece and the pressing piece are relatively close to each other, the distance between the first clamping position and the pressing piece is reduced, and the first photovoltaic panel is clamped from the direction perpendicular to the first photovoltaic panel;
when the connecting piece and the pressing piece are relatively close to each other, the distance between the second clamping position and the pressing piece is reduced, and the second photovoltaic panel is clamped from the direction vertical to the second photovoltaic panel.
Optionally, two ends of the pressing piece are respectively provided with a first right-angle positioning portion matched with the side end of the first photovoltaic panel and a second right-angle positioning portion matched with the side end of the second photovoltaic panel;
the pressing piece is sleeved on the fastening piece, and the locking piece is sleeved on the fastening piece and is abutted against the pressing piece; the locking member moves relative to the fastener to adjust the relative position of the compression member on the fastener.
Optionally, at least two pressing members, at least two fastening members, and at least two locking members are arranged in the extending direction of the first water chute.
A BIPV roofing system comprising cross beams, longitudinal beams, photovoltaic panels and the photovoltaic panel connection assembly of any one of claims 5 to 8;
the cross beam and the longitudinal beam are installed in a staggered mode in the transverse and vertical directions to form a net-shaped installation framework, the photovoltaic panels are arranged in a matrix mode and laid on the installation framework, the photovoltaic panel waterproof fixing assemblies are parallel to the longitudinal beam installation, the connecting pieces and the pressing pieces are correspondingly arranged on the upper side and the lower side of a longitudinal gap between the photovoltaic panels respectively, and the fastening pieces are located in the longitudinal gap of the photovoltaic panels.
Optionally, the first connecting portion, the second connecting portion and the bottom portion enclose a first water guiding groove which is the same as the extending direction of the connecting member, a second water guiding groove and a third water guiding groove are respectively arranged on two sides of the extending direction of the first water guiding groove, an opening of the first water guiding groove is located right below a longitudinal gap of an adjacent photovoltaic panel, and an opening of the second water guiding groove is located below a bottom surface of the photovoltaic panel and is communicated with a transverse gap of the photovoltaic panel.
The embodiment of the invention has the following beneficial effects:
by adopting the connecting piece and the photovoltaic panel connecting assembly provided by the invention, the connecting piece is surrounded by the first connecting part, the second connecting part and the bottom part to form the first water chute with the same extending direction as the connecting piece, the photovoltaic panel connecting assembly also comprises the pressing piece arranged opposite to the connecting piece, and the fastening piece and the locking piece which are matched with each other and are used for connecting the connecting piece and the pressing piece. The connecting piece with compress tightly the space between the piece and be used for holding the photovoltaic board, be equipped with the screens that is used for butt photovoltaic board side and with fastener matched with inclined plane on the connecting piece, the other end and the lock piece of fastener are connected, fastener and lock piece relative motion to make the connecting piece with compress tightly the piece and be close to relatively, and then drive the screens along the direction on perpendicular inclined plane to the direction removal that deviates from the inclined plane, follow the side of photovoltaic board to central extrusion photovoltaic board. The photovoltaic panel connecting assembly provided by the invention can provide acting force and fix the photovoltaic assembly in the up-down direction, the left-right direction, so that the fixing effect is stable, and the fixing effect of the photovoltaic panel is enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a cross-sectional view of a connector in one embodiment.
FIG. 2 is a schematic illustration of the cooperative structures of the compression member, fastener and latch member of one embodiment.
Fig. 3 is a schematic cross-sectional view of a photovoltaic panel mounting assembly in one embodiment after mating.
In the figure:
100. a connecting member; 110. a bottom; 111. a first inclined plane; 112. a second inclined plane; 113. a first clamping position; 1131. a first bearing surface; 1132. a first limiting surface; 1133. a first right-angle weather strip; 114. a second card position; 1141. a second bearing surface; 1142. a second limiting surface; 1143. a second right angle weather strip; 115. a first water chute; 116. a second water chute; 117. a third water chute; 118. a first connecting groove; 119. a second connecting groove; 200. a compression member; 300. a fastener; 310. an abutting portion; 311. a first abutting surface; 312. a second abutting surface; 400. a locking member; 510. a first photovoltaic panel; 520. a second photovoltaic panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For convenience of understanding, the following description of "first XX" and "second XX" may be understood as distinguishing between a plurality of "XX" components. Such as: the "first photovoltaic panel 510" and the "second photovoltaic panel 520" are two "photovoltaic panels" symmetrically distributed on the left and right sides of the connecting member 100; in contrast, "photovoltaic panel" may refer to either of "first photovoltaic panel 510" or "second photovoltaic panel 520".
Referring to fig. 1 to 3, as an embodiment of the present invention, a connecting member and a photovoltaic panel connecting assembly including the connecting member are used for connecting a first photovoltaic panel 510 and a second photovoltaic panel 520 which are arranged at an interval. The photovoltaic panel connecting assembly includes the connecting member 100 and a fixing member for fixing the top of the connecting member 100. The fixture includes a compression member 200, a fastener 300, and a lock member 400. The connecting member 100 and the pressing member 200 are disposed opposite to each other, and the fastening member 300 and the locking member 400 are engaged with each other to connect the connecting member 100 and the pressing member 200.
The connecting member 100 includes a bottom portion 110, and a first connecting portion and a second connecting portion respectively formed by extending from two ends of the bottom portion 110 toward a direction close to the pressing member 200; one surface of the first connecting part, which is far away from the second connecting part, forms a first clamping position 113 matched with a corner of the side end of the first photovoltaic panel 510, and a first accommodating space for accommodating the side end of the first photovoltaic panel 510 is enclosed by the first clamping position 113 and one end of the pressing piece 200;
one surface of the second connecting portion, which is far away from the first connecting portion, forms a second locking position 114 matched with a corner of the side end of the second photovoltaic panel 520, and the second locking position 114 and the other end of the pressing member 200 enclose a second accommodating space for accommodating the side end of the second photovoltaic panel 520.
Further, a first inclined surface 111 is formed on one surface of the first connecting portion close to the second connecting portion, and a second inclined surface 112 is formed on one surface of the second connecting portion close to the first connecting portion. One end of the fastener 300 is expanded to form an abutting part 310, the abutting part 310 is arranged between the first inclined surface 111 and the second inclined surface 112, the abutting part 310 abuts against the first inclined surface 111 and the second inclined surface 112 respectively, the locking piece 400 abuts against the pressing piece 200, the other end of the fastener 300 is connected with the locking piece 400, and the fastener 300 and the locking piece 400 move relatively, so that the connecting piece 100 and the pressing piece 200 are relatively close to each other.
In the process that the connecting member 100 and the pressing member 200 approach each other, the expanded end of the fastener 300 presses the first inclined surface 111 and the second inclined surface 112, and then drives the first clip 113 and the second clip 114 to move in the direction away from the fastener 300, i.e., move in the direction of pushing the first photovoltaic panel 510 and the second photovoltaic panel 520 along the pushing force perpendicular to the first inclined surface 111 and the second inclined surface 112, and generate the clamping force perpendicular to the panel surface of the photovoltaic panel and the lateral pushing force parallel to the panel surface of the photovoltaic panel, which are opposite to the pressing member 200, to the lateral ends of the first photovoltaic panel 510 and the second photovoltaic panel 520.
In the prior art, the photovoltaic panel is only clamped by the upper surface and the lower surface in mounting and fixing, and the horizontal fixing problem is not considered from the mounting structure. In fact, the weight of the photovoltaic panel is large, the photovoltaic panel is pressed down from top to bottom through the edge during installation to fix the position of the photovoltaic panel, the panel is gathered at a high temperature under the working state of the photovoltaic panel, and the micro deformation of the projection or the depression is generated, at the moment, the edge is retracted inwards along with the deflection of the middle part due to the fact that no horizontal acting force exists, the edge of the photovoltaic panel and the pressing piece 200 generate relative displacement, the connecting surface between the photovoltaic panel and the connecting piece 100 and between the pressing piece 200 is reduced, a gap is gradually generated between the photovoltaic panel and the connecting piece, and finally the clamping force of the connecting structure on the photovoltaic panel is unstable.
In the connection structure provided by the present invention, the locking member 400 fixes and presses the pressing member 200 toward the direction of the connection member 100 to clamp the photovoltaic panel in the vertical direction. Because the expanded end of the fastener 300 abuts against the first inclined surface 111 and the second inclined surface 112, the first detent 113 and the second detent 114 are slightly deformed in directions away from the first inclined surface 111 and the second inclined surface 112, respectively, and the displacement directions of the slight deformation are perpendicular to the first inclined surface 111 and the second inclined surface 112, respectively. The deformation progresses along the corner points along the photovoltaic panel and the clip connection towards the center of the photovoltaic panel. It can be easily understood that the deformation not only provides a clamping force in the vertical direction for the photovoltaic panel, but also provides a component force for the lateral clamping for the photovoltaic panel through the arrangement of the inclined surface. The installation effect is more stable.
Alternatively, the distance between the first inclined surface 111 and the second inclined surface 112 gradually decreases in a direction approaching the pressing member 200, so that the connecting portion and the bottom portion 110 on both sides of the connecting member 100 define a reducing slot with gradually decreasing opening.
This displacement direction that the screens produced is impelled to the center of photovoltaic board along photovoltaic board and the angular point of clamping connection, that is to say, the screens can not only provide the thrust of vertical direction for the edge of photovoltaic board with compressing tightly the cooperation on inclined plane, can also provide the thrust of photovoltaic board edge towards the center, the pretightning force of horizontal direction promptly for there is horizontal pretightning force pressurization between photovoltaic board and the connecting piece 100, thereby can connect more closely.
Optionally, the first clamping portion 113 is provided with a first supporting surface 1131 and a first limiting surface 1132, the first supporting surface 1131 is parallel to the bottom 110 of the connecting member 100, the first limiting surface 1132 extends toward the pressing member 200 perpendicular to the first supporting surface 1131 to abut against a side surface of the first photovoltaic panel 510, and the connecting member 100 and the pressing member 200 are relatively close to each other to clamp the first photovoltaic panel 510.
The second clip 114 is provided with a second supporting surface 1141 and a second limiting surface 1142, the second supporting surface 1141 is parallel to the bottom 110 of the connecting member 100, the second limiting surface 1142 is perpendicular to the second supporting surface 1141 and extends toward the pressing member 200 to abut against the side surface of the second photovoltaic panel 520, and the connecting member 100 and the pressing member 200 are relatively close to each other to clamp the second photovoltaic panel 520.
It is understood that, in the above embodiment, the bearing surface is used to provide a vertically upward bearing force for the photovoltaic panel, and the limiting surface provides a horizontally pushing force for the photovoltaic panel.
Optionally, the expanded end of the fastening member 300 is provided with a first abutting surface 311 engaged with the first inclined surface 111 and a second abutting surface 312 engaged with the second inclined surface 112, so that the fastening member 300 is in planar abutment with the first inclined surface 111 and the second inclined surface 112, and the connection stability between the fastening member 300 and the connecting member 100 is increased.
Optionally, at least one of the first inclined surface 111, the second inclined surface 112, the first abutting surface 311, and the second abutting surface 312 is a rough surface. May be ridges or grooves that extend perpendicular to the sliding direction, or other structures that increase surface friction.
It should be understood that the connecting member 100 described herein is a one-piece section formed by bending a single-piece section or directly formed by injection molding or forging, etc., in combination with the drawings and the prior art. In contrast, the top edge of the first inclined surface 111 and the top edge of the first detent 113, and the top edge of the second inclined surface 112 and the top edge of the second detent 114 are all seamlessly connected. In order to ensure that the pushing force of the fastener 300 received by the first inclined surface 111 and the second inclined surface 112 can be better transmitted to the first detent 113 and the second detent 114, the first supporting surface 1131 is located on a plane between the lower bottom edge of the first inclined surface 111 and the upper top edge of the first inclined surface 111, the upper top edge of the first inclined surface 111 is further provided with a first extending surface parallel to the limiting surface, the first extending surface makes the top edge of the first inclined surface 111 and the top edge of the first limiting surface 1132 have the same height, and an unclosed space avoidance section is formed between the first inclined plane 111 and the first position-limiting part 113, and between the second inclined plane 112 and the second position-limiting part 114, in order to ensure that the space avoidance section does not affect the thrust transmission of the inclined plane to the right-angle position-limiting part, the plane of the second bearing surface 1141 is located between the lower bottom edge of the second inclined plane 112 and the upper top edge of the second inclined plane 112, the upper top edge of the second inclined plane 112 is further provided with a second extending surface parallel to the position-limiting surface, and the second extending surface makes the top edge of the second inclined plane 112 and the top edge of the second position-limiting surface 1142 equal in height.
Optionally, a first right-angle sealing strip 1133 attached to the first supporting surface 1131 and the first limiting surface 1132 simultaneously is disposed between the first clamping position 113 and the first photovoltaic panel 510;
a second right-angle sealing strip 1143 which is simultaneously attached to the second bearing surface 1141 and the second limiting surface 1142 is arranged between the second clamping position 114 and the second photovoltaic panel 520.
When the first clip 113 and the second clip 114 move, the pushing force on the corner points of the first photovoltaic panel 510 and the second photovoltaic panel 520 can also respectively press the first right-angle sealing strip 1133 and the second right-angle sealing strip 1143, so that the waterproof effect is better.
Referring to fig. 1 and 3, in another embodiment of the present invention, the first connecting portion, the second connecting portion and the bottom portion 110 form a first water chute 115 extending in the same direction as the connecting member 100 for guiding rainwater accumulated in the gap of the photovoltaic panel 200.
Optionally, at least two connecting members formed by the pressing member 200, the fastening member 300, and the locking member 400 being engaged with each other are provided in the extending direction of the first water chute 115.
That is, the first water chute 115 is a long groove along the extending direction of the connecting member 100, and the fastening member 300, the locking member 400 and the pressing member 200 together constitute a connecting member installed at a certain position in the long groove, and fix the photovoltaic panel in a multi-point fixing manner on the same path.
In one embodiment, the fastener 300 is a pull rod, the expanded abutting portion 310 is a pull rod disposed at one end of the pull rod, the pressing member 200 is a pressing rod having connecting portions at both ends, and the locking member 400 is a nut or nut disposed on the pull rod.
The combination of the tension bar, the compression bar and the screw is only one specific embodiment of the invention for compressing the photovoltaic panel. It is contemplated within the scope of the present invention that only the abutting portion 310 and the pressing member 200 need be able to approach each other under an external force to clamp the photovoltaic panel, if desired.
Optionally, the second water chute 116 and the third water chute 117 are respectively disposed on two sides of the extending direction of the first water chute 115, the second water chute 116 and the third water chute 117 are respectively disposed at intervals with the first water chute 115, the side wall of the second water chute 116 close to the first water chute 115 is connected with the side of the first bearing surface 1131 far away from the first connecting portion, and the side wall of the third water chute 117 close to the first water chute 115 is connected with the side of the second bearing surface 1141 far away from the second connecting portion.
Correspondingly, a first connecting groove 118 is formed between the side wall of the second water guiding groove 116 close to the first water guiding groove 115 and the first connecting portion, a second connecting groove 119 is formed between the side wall of the third water guiding groove 117 close to the first water guiding groove 115 and the second connecting portion, and the opening directions of the first connecting groove 118 and the second connecting groove 119 are both deviated from the pressing member 200 to fix the connecting member 100 from the bottom 110 of the connecting member 100.
Optionally, the bottom 110 of the first water guiding groove 115, the bottom surface of the second water guiding groove 116, and the bottom surface of the third water guiding groove 117 are all located on the same plane, and the first water guiding groove 115, the first connecting groove 118, and the second connecting groove 119 are all T-shaped grooves having opening widths smaller than the inner widths.
The bottom surfaces of the first water chute 115 and the second water chute 116 are located on the same plane, so that the depth of the first water chute 115 is increased, the water guiding capacity of the first water chute 115 is enhanced, the opening parts of the first connecting groove 118 and the second connecting groove 119 are convenient to form the T-shaped groove, namely, the same position close to the bottom surface is simultaneously bent to form a reduced notch between the first water chute 115 and the second water chute 116 and between the first water chute 115 and the third water chute 117 on two side walls which are close to each other, and the punching-free installation of the bottom 110 is realized.
In the prior art, a water guide structure is required to be installed between a photovoltaic module and an installation framework so as to guide out water, impurities and the like in a gap between photovoltaic panels. In order to fix the water guiding structure, a hole is drilled in the bottom 110 of the water guiding structure and the water guiding structure is fixed by a screw, or a fixing member is added to press two sides of the water guiding structure (corresponding to the positions of two sides of the second water guiding groove and the third water guiding groove) and then fixed. The workload of the installation process can be increased by the two fixing modes, and the punching installation position inevitably has water leakage from the middle, so that the water-resisting effect is influenced. In the past, other facilities on the roof are gradually rusted. The photovoltaic panel connecting assembly provided by the invention has the advantages that the structural relationship is improved, so that the upper part and the bottom part 110 of the connecting piece 100 can be installed without punching through the matching of the T-shaped groove and the T-shaped connecting piece, and the drainage effect is not influenced.
In the present embodiment, the abutting portion 310 is an elongated connecting portion having a width smaller than the opening width of the first water guide groove 115 and a length larger than the width of the first water guide groove 115, and is installed before. The length direction of the abutting portion 310 is adjusted to be the same as the extending direction of the first water guide groove 115, the abutting portion 310 is extended below the opening of the first water guide groove 115, the abutting portion 310 is rotated to gradually deflect in the length direction until the transverse width is larger than the opening width of the first water guide groove 115, and the clamping of the abutting portion 310 at the opening of the first water guide groove 115 can be achieved. And under the matching relationship of the abutting inclined surface and the connecting inclined surface, the connection between the abutting part 310 and the connecting inclined surface is firmer as the abutting part is subjected to upward pulling force.
Besides, the connecting piece is required to be tightly connected with the photovoltaic panel and is also required to be fixed on the cross beam below to resist the tension transmission of vertical negative wind pressure. During wind blowing, the photovoltaic module is subjected to negative wind pressure from the top, i.e., wind suction. At this time, the wind suction force can be transmitted to the pressure sign indicating number through the subassembly frame, and then from the pressure sign indicating number on transmitting the fixed slot in guiding gutter middle part. However, the flange at the most lateral side of the water chute is connected to a lower cross beam (secondary beam) through a pressing code or a hook in the existing connecting piece (also called as a water guide sandal strip), a transmission path from stress to a fixed part is too long when vertical wind suction force is transmitted, and additionally a bending moment is generated between a position finally stressed and fixed and a connecting point of a pressing piece and a photovoltaic plate due to the change of the transmission path, so that the water guide purlin which has more bending and also has the water chute is adversely affected and deformed, the middle part of the water guide sandal strip can cause uneven stress to arch upwards, and secondary loss is caused to the whole tightness.
Referring to fig. 1, in the connection element 100 of the present invention, the first connection slot 118 is disposed below the first detent 113, and the second connection slot 119 is disposed below the second detent 114. More specifically, the pressing members 200 are respectively located below the first receiving space and the second receiving space, and the end portions for pressing the photovoltaic panel, the supporting surfaces for supporting the photovoltaic panel, and the connecting grooves for fixing the bottom of the connecting member 100 are sequentially connected in a vertical direction. The opening of the first water guiding groove 115 is used for connecting the fixing member, when the photovoltaic panel is subjected to wind suction force, the top pressing member 200 is firstly subjected to tension, and finally the fixing part subjected to bottom stress, namely the openings of the first connecting groove 118 and the second connecting groove 119, is obtained. The wind suction force is transmitted on the photovoltaic panel connecting assembly provided by the invention to sequentially pass through the pressing piece 200, the fastener 300, the first inclined surface 111 and the second inclined surface 112, and the openings of the first connecting groove 118 and the second connecting groove 119, namely, at the positions which are right below two ends of the photovoltaic panel pressed by the pressing piece 200 and are close to the first connecting part and the second connecting part. In this way, the force transfer path from the top to the lower fixed position is in the same vertical direction: the force transmission path directly reaches the fixed connection position of the bottom of the connecting piece 100 through the first connecting part and the second connecting part on two sides of the first water chute 115, the force transmission path is short, other bending parts or plane transmission is not needed, extra bending moment cannot be generated to cause out-of-plane deformation, the connection is more stable, and the sealing performance is better.
Further, the pulling force of the fastener 300 is transmitted to the first inclined surface 111 and the second inclined surface 112, so as to jack the first latch 113 and the second latch 114 in opposite directions, and lock the photovoltaic panel transversely. Further enhancing the ability of the photovoltaic panel to resist wind suction.
The BIPV roof system applying the photovoltaic panel connecting assembly provided by the invention comprises cross beams, longitudinal beams, photovoltaic panels and any one of the photovoltaic panel connecting assemblies.
Crossbeam and longeron are crisscross the installation of formation net-shaped mounting structure anyhow, and the photovoltaic board is the matrix and arranges and lay on mounting structure, and the waterproof fixed subassembly of photovoltaic board is on a parallel with the longeron installation, and connecting piece 100 and compressing tightly 200 set up the upper and lower both sides in the vertical clearance between the photovoltaic board correspondingly respectively, and fastener 300 is located the vertical clearance of photovoltaic board.
Optionally, the first connecting portion, the second connecting portion and the bottom portion 110 enclose a first water guiding groove 115 having the same extending direction as the connecting member 100, a second water guiding groove 116 and a third water guiding groove 117 are respectively disposed on two sides of the extending direction of the first water guiding groove 115, an opening of the first water guiding groove 115 is located right below a longitudinal gap of an adjacent photovoltaic panel, and an opening of the second water guiding groove 116 is located below a bottom surface of the photovoltaic panel and is communicated with a transverse gap of the photovoltaic panel.
The first water chute 115 and the second water chute 116 are arranged in parallel to the longitudinal beam, the first water chute 115 is located below the gap of the photovoltaic panel and used for guiding and discharging water accumulated in the longitudinal gap of the photovoltaic panel, the second water chute 116 is located on two sides below the longitudinal gap of the photovoltaic panel and arranged in a mode of crossing with the cross beam in actual installation, and the second water chute 116 is arranged at the position of the photovoltaic panel and used for receiving accumulated water possibly existing in the transverse gap of the photovoltaic panel and guiding and discharging the accumulated water along the longitudinal direction. In addition, the second water chute 116 also has a function of dispersing and diverting water overflowing from both sides of the first water chute 115 in time when the water of the first water chute 115 having a large flow of water overflows, without a risk of leakage down the roof due to the limited water-guiding capacity of the first water chute 115.
The photovoltaic panel connecting assembly provided by the invention can provide acting force and fix the photovoltaic assembly in the upper direction, the lower direction, the left direction and the right direction, so that the fixing effect is stable, a plurality of water guide grooves can be formed at the same time, accumulated water in longitudinal gaps and transverse gaps of the photovoltaic panel is respectively drained, and the drainage effect of a BIPV roof system is improved.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims (8)

1. A connecting piece is used for connecting a first photovoltaic panel and a second photovoltaic panel which are arranged at intervals, and is characterized in that: the photovoltaic module comprises a bottom, and a first connecting part and a second connecting part which are formed by extending from two ends of the bottom to the direction close to the first photovoltaic plate and the second photovoltaic plate respectively;
one surface, far away from the second connecting part, of the first connecting part forms a first clamping position matched with a corner of the side end of the first photovoltaic panel, and one surface, close to the second connecting part, of the first connecting part forms a first inclined surface;
one surface of the second connecting part, which is far away from the first connecting part, forms a second clamping position matched with a corner of the side end of the second photovoltaic panel, and one surface of the second connecting part, which is close to the first connecting part, forms a second inclined surface;
the distance between the first inclined plane and the second inclined plane is gradually reduced along the direction far away from the bottom, the first connecting part, the second connecting part and the bottom enclose a first water chute in the same extending direction as the connecting piece, and an opening of the first water chute is used for connecting a fixing piece to fix the top of the connecting piece;
the first clamping position is provided with a first bearing surface and a first limiting surface, the first bearing surface is parallel to the bottom of the connecting piece, and the first limiting surface is perpendicular to the first bearing surface and extends towards the direction far away from the bottom to be abutted against the side surface of the first photovoltaic panel;
the second clamping position is provided with a second bearing surface and a second limiting surface, the second bearing surface is parallel to the bottom of the connecting piece, and the second limiting surface is perpendicular to the second bearing surface and extends in the direction far away from the bottom to be abutted against the side face of the second photovoltaic panel;
a second water chute and a third water chute are respectively arranged on two sides of the first water chute in the extending direction, the second water chute and the third water chute are respectively arranged at intervals with the first water chute, the side wall of the second water chute close to the first water chute is connected with one side of the first bearing surface far away from the first connecting part, and the side wall of the third water chute close to the first water chute is connected with one side of the second bearing surface far away from the second connecting part;
a first connecting groove is formed between the side wall of the second water chute close to the first water chute and the first connecting part, a second connecting groove is formed between the side wall of the third water chute close to the first water chute and the second connecting part, and the opening directions of the first connecting groove and the second connecting groove are opposite to the opening direction of the first water chute and are used for fixing the bottom of the connecting piece;
and the first connecting groove and the second connecting groove are both T-shaped grooves with opening widths smaller than the inner width.
2. The connector of claim 1, wherein: the bottom of the first water chute, the bottom surface of the second water chute and the bottom surface of the third water chute are all located on the same plane.
3. The utility model provides a photovoltaic board coupling assembling for connect first photovoltaic board and the second photovoltaic board that the interval set up, its characterized in that: the connecting piece and the fixing piece comprise the connecting piece and the fixing piece according to claim 1 or 2, wherein the fixing piece comprises a pressing piece, a fastening piece and a locking piece, the connecting piece and the pressing piece are arranged oppositely, and the fastening piece and the locking piece are matched with each other to be used for connecting the connecting piece and the pressing piece;
a first accommodating space for accommodating the side end of the first photovoltaic panel is enclosed by the first clamping position and one end of the pressing piece, and a second accommodating space for accommodating the side end of the second photovoltaic panel is enclosed by the second clamping position and the other end of the pressing piece;
one end of the fastener expands to form an abutting part, the abutting part is arranged between the first inclined plane and the second inclined plane, and the abutting part is abutted against the first inclined plane and the second inclined plane respectively;
the locking piece is abutted with the pressing piece;
the other end of the fastening piece is connected with the locking piece, and the fastening piece and the locking piece move relatively, so that the connecting piece and the pressing piece are relatively close to each other.
4. A photovoltaic panel connection assembly according to claim 3, wherein: when the connecting piece and the pressing piece are relatively close to each other, the distance between the first clamping position and the pressing piece is reduced, and the first photovoltaic panel is clamped from the direction vertical to the first photovoltaic panel;
when the connecting piece and the pressing piece are relatively close to each other, the distance between the second clamping position and the pressing piece is reduced, and the second photovoltaic panel is clamped from the direction vertical to the second photovoltaic panel.
5. The photovoltaic panel connection assembly of claim 4, wherein: two ends of the pressing piece are respectively provided with a first right-angle positioning part matched with the side end of the first photovoltaic plate and a second right-angle positioning part matched with the side end of the second photovoltaic plate;
the pressing piece is sleeved on the fastening piece, and the locking piece is sleeved on the fastening piece and is abutted against the pressing piece; the locking member moves relative to the fastener to adjust the relative position of the compression member on the fastener.
6. The photovoltaic panel connection assembly of claim 5, wherein: at least two pressing pieces, at least two fasteners and at least two locking pieces are arranged in the extending direction of the first water chute.
7. A BIPV roofing system characterized in that: the photovoltaic panel connecting assembly comprises cross beams, longitudinal beams, photovoltaic panels and the photovoltaic panel connecting assembly as claimed in any one of claims 3 to 6;
the cross beam and the longitudinal beam are installed in a staggered mode in the transverse and vertical directions to form a net-shaped installation framework, the photovoltaic panels are arranged in a matrix mode and laid on the installation framework, the photovoltaic panel waterproof fixing assemblies are parallel to the longitudinal beam installation, the connecting pieces and the pressing pieces are correspondingly arranged on the upper side and the lower side of a longitudinal gap between the photovoltaic panels respectively, and the fastening pieces are located in the longitudinal gap of the photovoltaic panels.
8. The BIPV roofing system of claim 7 wherein: the first connecting portion, the second connecting portion and the bottom portion enclose a first water guiding groove which is identical to the extending direction of the connecting piece, a second water guiding groove and a third water guiding groove are respectively arranged on two sides of the extending direction of the first water guiding groove, an opening of the first water guiding groove is located right below a longitudinal gap of an adjacent photovoltaic plate, and an opening of the second water guiding groove is located below the bottom surface of the photovoltaic plate and is communicated with a transverse gap of the photovoltaic plate.
CN202111023716.XA 2021-09-02 2021-09-02 Connecting piece, photovoltaic board coupling assembling and BIPV roofing system Active CN113452309B (en)

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CN114457964B (en) * 2022-02-17 2023-05-09 江苏新阳光智顶科技有限公司 Modularized assembled integrated roof photovoltaic system

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