WO2023132805A1 - A new generation frame for solar modules - Google Patents

A new generation frame for solar modules Download PDF

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Publication number
WO2023132805A1
WO2023132805A1 PCT/TR2022/051270 TR2022051270W WO2023132805A1 WO 2023132805 A1 WO2023132805 A1 WO 2023132805A1 TR 2022051270 W TR2022051270 W TR 2022051270W WO 2023132805 A1 WO2023132805 A1 WO 2023132805A1
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WO
WIPO (PCT)
Prior art keywords
photovoltaic
modules
frame
channel
module
Prior art date
Application number
PCT/TR2022/051270
Other languages
French (fr)
Inventor
Ali SENSOY
Original Assignee
Hadra Enerji Sanayi Ticaret Limited Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hadra Enerji Sanayi Ticaret Limited Sirketi filed Critical Hadra Enerji Sanayi Ticaret Limited Sirketi
Publication of WO2023132805A1 publication Critical patent/WO2023132805A1/en

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Classifications

    • 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
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • H02S30/10—Frame structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/20—Peripheral frames for modules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/60—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules
    • F24S25/67—Fixation means, e.g. fasteners, specially adapted for supporting solar heat collector modules for coupling adjacent modules or their peripheral frames
    • 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 invention relates to a new generation frame for photovoltaic solar modules which will solve the problems faced in the prior art.
  • PV photovoltaic
  • Photovoltaic solar cells are systems consisting of semiconductor materials that convert sunlight they receive directly into DC electrical energy.
  • the surface of the solar cells which are usually in the shape of a square, rectangle, or circle, has an average area of 100 / 156 / 243 square centimetres, and their thickness is around 0.2 - 0.4 mm.
  • Solar cells work on the photovoltaic principle. With the light falling on them, an electrical voltage is formed at their ends. Solar cells absorb photons and convert the energy of photons into electrons. These electrons are stored in the front and back of the cells. The voltage generated here creates an electric current. Cells installed with modules and panels are connected to each other in series in order to achieve the desired voltage.
  • the most critical material which is the surface carrier in photovoltaic (PV) modules with dimensions of 1000x1700 mm, 1050x2050, 1300x2300 mm in the known technique, is tempered glass with a thickness of 2.3 mm.
  • a photovoltaic (PV) module with double-sided tape is placed inside the 5.5 mm channel.
  • the weight without the frame is around 20 kg for a 2 m2 400-watt photovoltaic (PV) module.
  • the photovoltaic (PV) module is fixed in the horizontal "II" shaped channels of the frame by using doublesided tape. This process also has some disadvantages in terms of slowing down the production speed and safe operation (injuries due to jamming/falling).
  • PV Photovoltaic
  • Photovoltaic (PV) modules are fastened up to each other with PVC straps so that they do not lie on their sides during shipping. During the installation of these panels at the application site, after the PVC belts are cut, the panels must be supported firmly so that they do not fall. This leads to situations that require extra labor and can cause injury or panel damage when acted carelessly.
  • Another problem arising from vertical transportation is that the glass surfaces remain on the edges, so any impact from the side during loading, unloading, and transportation with heavy equipment such as forklifts causes serious damage.
  • FIGURES After two of the conventional framed photovoltaic (PV) modules are brought side by side, they are mounted using claw-shaped holders (holder, clamp) that will hold the two panels together by pressing on the frames.
  • FIGURES After two of the conventional framed photovoltaic (PV) modules are brought side by side, they are mounted using claw-shaped holders (holder, clamp) that will hold the two panels together by pressing on the frames.
  • FIGURES After two of the conventional framed photovoltaic (PV) modules are brought side by side, they are mounted using claw-shaped holders (holder, clamp) that will hold the two panels together by pressing on the frames.
  • FIG. 1 Back View of Photovoltaic (PV) Module with Frame
  • FIG. 1 View of Two Photovoltaic (PV) Modules with Frame Fastened Up Side by Side
  • PV Photovoltaic
  • the invention relates to a new generation frame with high strength, which allows the rigid placement of the photovoltaic (PV) module (1 ) on the frame (2) without any protrusion on the upper surface and is suitable for transportation by stacking horizontally.
  • the frame (2) includes the L-channel (2.1 ) and an adhesion surface (2.1.1 ) in the L channel (2.1 ), which allows a rigid adhesion of the photovoltaic (PV) module (1 ) to the frame (2) in a way that does not form any protrusion on the upper surface.
  • Mass production is performed much faster than the placement into the channel with clamp in the prior art due to the ease of application of the adhesive to be used for adhering the photovoltaic (PV) module (1 ) to the adhesion surface (2.1.1 ) in the L channel (2.1 ), and the ease of placing the photovoltaic (PV) module (1 ) into the L channel (2.1 ) after this process.
  • the photovoltaic (PV) module (1 ) functions efficiently.
  • the cable wedges (4) installed to the cable channel (2.3) ensure the solar cables remain inside the channel in an orderly manner and prevent them from sagging loosely from the back of the module.
  • FIG. -5 Installation of photovoltaic (PV) modules (1 ) side-by-side is shown in FIG. -5, and there is a joining surface (2.5) on the frame (2) for connecting two modules side- by-side.
  • the two modules are placed side by side on the joining surface (2.5) by pressing the flanges of the holder (3) to provide a strong grip.
  • the joining surface (2.5) of two side- by-side modules is flat on the edge of the frame (2) and the tightened surface will not contact any component such as glass, cell, etc.
  • the problem of damaging the module as a result of tightening it over the channel in the prior art has been solved.
  • a stacking upper clamp (2.4) and a stacking bottom channel (2.6) are formed on the upper part of the frame (2) for horizontal stacking.
  • the modules horizontally on top of each other Figure 6
  • the lateral movements of the module are thus limited.
  • there is no load on the photovoltaic (PV) module (1 ) since the load is transmitted over the joining surface (2.5) of the two side-by-side modules.
  • the photovoltaic (PV) module (1 ) will also be fully protected from the impacts coming from the lateral sections that are frequently exposed during transportation. It is economically important to transport the modules with the highest possible payload and with the least damage.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention relates to a new generation frame for photovoltaic solar modules which will solve the problems faced in the prior art.

Description

A NEW GENERATION FRAME FOR SOLAR MODULES
TECHNICAL FIELD
The invention relates to a new generation frame for photovoltaic solar modules which will solve the problems faced in the prior art.
PRIOR ART
The technology that converts solar energy into electric current is called photovoltaic (PV) technology. Silicon-like materials have the ability to convert solar energy directly into electrical energy. This phenomenon is called the photovoltaic effect.
Photovoltaic solar cells are systems consisting of semiconductor materials that convert sunlight they receive directly into DC electrical energy. The surface of the solar cells, which are usually in the shape of a square, rectangle, or circle, has an average area of 100 / 156 / 243 square centimetres, and their thickness is around 0.2 - 0.4 mm. Solar cells work on the photovoltaic principle. With the light falling on them, an electrical voltage is formed at their ends. Solar cells absorb photons and convert the energy of photons into electrons. These electrons are stored in the front and back of the cells. The voltage generated here creates an electric current. Cells installed with modules and panels are connected to each other in series in order to achieve the desired voltage.
The most critical material, which is the surface carrier in photovoltaic (PV) modules with dimensions of 1000x1700 mm, 1050x2050, 1300x2300 mm in the known technique, is tempered glass with a thickness of 2.3 mm. There must be frames to carry weights of approximately 10 kg per m2. In the existing frames, a photovoltaic (PV) module with double-sided tape is placed inside the 5.5 mm channel. The weight without the frame is around 20 kg for a 2 m2 400-watt photovoltaic (PV) module. 20 kg load is carried on a 6 mm surface with a perimeter of 2+2+1 +1 = 6 meters, that is, on a surface area of 0.036 m2. This causes a deflection of approximately 8 mm at the midpoints of the photovoltaic (PV) module. Thus, it can provide a maximum 2.4kPa (kilopascal) wind load and 5.4kPa (kilopascal) snow load carrying capacity. As of 2021 , photovoltaic (PV) modules of around 600w power are produced in the world, and in the range of 450w - 520w in Turkey. As the photovoltaic (PV) module surface areas increase, the deflection at the midpoint of the panel increases, and their load-carrying capacity decreases.
Due to the frame barrier on the glass and on 4 sides of the frames of the photovoltaic (PV) module used today, pollution factors such as dust, mud, etc. accumulate in this section and cover the cells that produce energy, and this causes a decrease in energy production. In addition, the barrier on the edges of the frame in this section acts as a snow retainer in snowfall and prevents the snow mass from slipping on the photovoltaic (PV) modules. This creates an extra load on the system.
In the production made by using frames of the known art, the photovoltaic (PV) module is fixed in the horizontal "II" shaped channels of the frame by using doublesided tape. This process also has some disadvantages in terms of slowing down the production speed and safe operation (injuries due to jamming/falling).
Behind the photovoltaic (PV) modules, there are 2 (+) and (-) solar cables with a cross-section of 4 mm2, generally varying in length between 0.5m-1.20m. Special cable holder accessories are used especially in roof applications to prevent these cables from contacting the roof surface and to prevent cable damage caused by wind vibration. This slows down the assembly speed.
Framed photovoltaic (PV) modules used today are stacked vertically so that the channels on the frame edges are not crushed. There are a maximum of 26-28 stacking possibilities depending on the area of the shipping pallets. Photovoltaic (PV) modules are fastened up to each other with PVC straps so that they do not lie on their sides during shipping. During the installation of these panels at the application site, after the PVC belts are cut, the panels must be supported firmly so that they do not fall. This leads to situations that require extra labor and can cause injury or panel damage when acted carelessly. Another problem arising from vertical transportation is that the glass surfaces remain on the edges, so any impact from the side during loading, unloading, and transportation with heavy equipment such as forklifts causes serious damage.
After two of the conventional framed photovoltaic (PV) modules are brought side by side, they are mounted using claw-shaped holders (holder, clamp) that will hold the two panels together by pressing on the frames. FIGURES
Figure 1 . Back View of Photovoltaic (PV) Module with Frame
Figure 2. Detailed Sectional View of Photovoltaic (PV) Module with Frame
Figure 3. Sectional View of Photovoltaic (PV) Module with Frame
Figure 4. Detailed Back View of Photovoltaic (PV) Module with Frame
Figure 5. View of Two Photovoltaic (PV) Modules with Frame Fastened Up Side by Side
Figure 6. View of Photovoltaic (PV) Modules with Frame Stacked on Top of Each Other Figure 7. View of Photovoltaic (PV) Modules with Frame Stacked on Top of Each Other Reference Numbers and Names of the parts specified in the figures
1 . Photovoltaic (PV) module
2. Frame
2.1 . L-Channel
2.1.1. Adhesion Surface
2.2. Support Profile
2.3. Cable Duct
2.4. Stacking Top Clamp
2.5. Joining Surface for Two Modules Connected Side by Side
2.6. Stacking Bottom Channel
3. Holder
4. Cable Wedge
DETAILED DESCRIPTION OF THE INVENTION
The invention relates to a new generation frame with high strength, which allows the rigid placement of the photovoltaic (PV) module (1 ) on the frame (2) without any protrusion on the upper surface and is suitable for transportation by stacking horizontally. The frame (2) includes the L-channel (2.1 ) and an adhesion surface (2.1.1 ) in the L channel (2.1 ), which allows a rigid adhesion of the photovoltaic (PV) module (1 ) to the frame (2) in a way that does not form any protrusion on the upper surface. Mass production is performed much faster than the placement into the channel with clamp in the prior art due to the ease of application of the adhesive to be used for adhering the photovoltaic (PV) module (1 ) to the adhesion surface (2.1.1 ) in the L channel (2.1 ), and the ease of placing the photovoltaic (PV) module (1 ) into the L channel (2.1 ) after this process. In addition, there is no protrusion on the upper surface of the frame (2) due to sticking the photovoltaic (PV) module (1 ) to the adhesion surface (2.1.1 ) in the L channel (2.1 ). For this reason, the accumulation of mud, snow, rainwater, and similar foreign substances on the frame edges and the upper surface is not possible. Thus, the photovoltaic (PV) module (1 ) functions efficiently.
There is at least one support profile (2.2) depending on the dimensions of the frame (2). Since there is an extra carrier on the short side thanks to the support profile
(2.2), the strength increases, and the deflection problem in the middle section is solved.
There is a cable duct (2.3) for the solar cables of the photovoltaic (PV) module (1 ) to be laid safely inside the frame (2) without sagging. After the photovoltaic (PV) module (1 ) is placed in the frame (2), the solar cables are placed in the cable channel
(2.3) and fastened up with a cable wedge (4) at certain intervals. The cable wedges (4) installed to the cable channel (2.3) ensure the solar cables remain inside the channel in an orderly manner and prevent them from sagging loosely from the back of the module.
Installation of photovoltaic (PV) modules (1 ) side-by-side is shown in FIG. -5, and there is a joining surface (2.5) on the frame (2) for connecting two modules side- by-side. When two modules with frames are brought side-by-side (Figure 5), the two modules are placed side by side on the joining surface (2.5) by pressing the flanges of the holder (3) to provide a strong grip. There is no possibility of damaging the module if the holder (3) is tightened with high torque since the joining surface (2.5) of two side- by-side modules is flat on the edge of the frame (2) and the tightened surface will not contact any component such as glass, cell, etc. Thus, the problem of damaging the module as a result of tightening it over the channel in the prior art has been solved.
Another important issue in the prior art is the problems arising from the necessity of transporting the photovoltaic (PV) modules (1 ) by vertical stacking. These problems have been solved with the horizontal stacking offered by our invention. A stacking upper clamp (2.4) and a stacking bottom channel (2.6) are formed on the upper part of the frame (2) for horizontal stacking. When stacking the modules horizontally on top of each other (Figure 6), they are placed on the upper part of the frame (2) in a manner that the stacking bottom channel (2.6) comes on the stacking upper clamp (2.4). The lateral movements of the module are thus limited. On the other hand, there is no load on the photovoltaic (PV) module (1 ) since the load is transmitted over the joining surface (2.5) of the two side-by-side modules. The photovoltaic (PV) module (1 ) will also be fully protected from the impacts coming from the lateral sections that are frequently exposed during transportation. It is economically important to transport the modules with the highest possible payload and with the least damage.
Our invention can be summarized as follows;
• It ensures dirt, mud, dust, water, snow, etc. easily flow and slide off the glass surface thanks to the L-channel (2.1 ) and the adhesion surface (2.1.1 ) in the L- channel (2.1 ) that allow photovoltaic (PV) modules to be mounted without creating any protrusion on the glass surface, and thus it reduces energy losses caused by dirt and soiling,
• It offers high strength as it contains a support profile (2.2) as an extra carrier on the short side,
• It solves the cable fixing and positioning problems encountered during cabling with cable duct (2.3) and the cable wedges (4) installed on the cable duct (2.3) and offers this feature in a continuous form on all edges,
• It offers stacking convenience and transportation safety, as well as eco-friendly packaging (reducing cardboard and PVC requirements) due to the fact that they lock into each other by means of the stacking upper clamp (2.4) on the upper part of the frame and by means of the stacking bottom channel (2.6) on the bottom part of the frame.
• When two modules with frames are connected to each other by bringing them together side-by-side, it provides an enduring grip by pressing the flanges of the holder (3) onto the joining surface (2.5) of the two side-by-side modules, thus providing a secure connection in terms of the assembly and integration of the photovoltaic (PV) modules without any deformation on the glass surface, and it differs from the prior art by minimizing module losses due to possible faulty workmanship during installation.

Claims

CLAIMS t is the frame (2) for the photovoltaic (PV) module (1) and it is characterized by;
- L-channel (2.1 ), which allows installation of the photovoltaic (PV) modules without creating any protrusion on the glass surface,
- At least one support profile (2.2) as an extra carrier on the short side,
- Cable duct (2.3), located on all edges,
- Stacking bottom channel (2.6), which prevents lateral movements of the modules by interlocking them to each other with the stacking upper clamp (2.4) on the upper part of the frame (2) during stacking,
- The joining surface (2.5) of two side-by-side modules that provide a strong grip, when two modules with frame are joined to each other side-by-side. It is the L-channel (2.1 ) mentioned in Claim 1 , and it is characterized by containing an adhesion surface (2.1.1 ). It is the cable channel (2.3) mentioned in Claim 1 , and it is characterized by containing cable wedges (4) that are mounted on it and prevent the solar cables from coming out of the duct. It is the joining surface (2.5) mentioned in Claim 1 and it is characterized by containing a holder (3) that enables the joining.
- 6 -
PCT/TR2022/051270 2022-01-04 2022-11-09 A new generation frame for solar modules WO2023132805A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2022000063 2022-01-04
TR2022/000063 2022-01-04

Publications (1)

Publication Number Publication Date
WO2023132805A1 true WO2023132805A1 (en) 2023-07-13

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ID=87074097

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PCT/TR2022/051270 WO2023132805A1 (en) 2022-01-04 2022-11-09 A new generation frame for solar modules

Country Status (1)

Country Link
WO (1) WO2023132805A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050199278A1 (en) * 2004-03-15 2005-09-15 Peter Aschenbrenner Ventilated photovoltaic module frame
DE102008051426A1 (en) * 2008-10-11 2010-04-22 Solarworld Ag Photovoltaic module, has frame formed in manner, such that photovoltaic module is stackably secured against slipping perpendicularly to surface-normal, where frame surrounds peripheral side of semiconductor component
WO2010128462A2 (en) * 2009-05-06 2010-11-11 S.I.E.M. S.R.L. Solar panel structure and corresponding solar panel
CN214177218U (en) * 2020-12-31 2021-09-10 安徽天柱绿色能源科技有限公司 Photovoltaic power generation ceramic tile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050199278A1 (en) * 2004-03-15 2005-09-15 Peter Aschenbrenner Ventilated photovoltaic module frame
DE102008051426A1 (en) * 2008-10-11 2010-04-22 Solarworld Ag Photovoltaic module, has frame formed in manner, such that photovoltaic module is stackably secured against slipping perpendicularly to surface-normal, where frame surrounds peripheral side of semiconductor component
WO2010128462A2 (en) * 2009-05-06 2010-11-11 S.I.E.M. S.R.L. Solar panel structure and corresponding solar panel
CN214177218U (en) * 2020-12-31 2021-09-10 安徽天柱绿色能源科技有限公司 Photovoltaic power generation ceramic tile

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