WO2023072185A1 - Photovoltaic module - Google Patents

Photovoltaic module Download PDF

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Publication number
WO2023072185A1
WO2023072185A1 PCT/CN2022/127906 CN2022127906W WO2023072185A1 WO 2023072185 A1 WO2023072185 A1 WO 2023072185A1 CN 2022127906 W CN2022127906 W CN 2022127906W WO 2023072185 A1 WO2023072185 A1 WO 2023072185A1
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WIPO (PCT)
Prior art keywords
photovoltaic module
laminate
wall
profile
glass
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PCT/CN2022/127906
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French (fr)
Chinese (zh)
Inventor
黄宏伟
张舒
高纪凡
王乐
Original Assignee
天合光能股份有限公司
天合光能（常州）科技有限公司
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Publication of WO2023072185A1 publication Critical patent/WO2023072185A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • 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
    • 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 the technical field of solar energy, in particular to a photovoltaic module.
  • Photovoltaic modules that is, solar panels
  • a photovoltaic module generally includes a frame and a laminate.
  • the main part of the frame is a profile, and the edge of the laminate is covered and fixed through the notches on the profile.
  • Laminates of photovoltaic modules including upper surface glass, EVA (abbreviation for Ethylene Vinyl Vinyl Acetate Acetate) encapsulation material, battery sheet, back sheet, etc., are formed by lamination process. If the backplane is made of glass, it is a double-glass photovoltaic module. Double-glass photovoltaic modules can generally be divided into double-glass photovoltaic modules with frames and double-glass photovoltaic modules without frames. A double-glass photovoltaic module with a frame is generally formed by wrapping a profile with a certain strength on the outer periphery of the laminate.
  • EVA abbreviation for Ethylene Vinyl Vinyl Acetate Acetate
  • the upper surface of the frame of the photovoltaic module is higher than the glass on the upper surface of the laminate.
  • foreign matter such as dust is not easy to be removed from the photovoltaic module due to the blocking of the profile, resulting in the accumulation of dust. Aggregation will reduce the photoelectric conversion efficiency of photovoltaic modules and reduce the power generation and reliability of photovoltaic modules.
  • Figure 1-3 shows a schematic structural view of a typical double-glass photovoltaic module in the prior art; wherein: Figure 1 shows a cross-section of a typical double-glass photovoltaic module in the prior art, as shown in Figure 1 As shown, a notch 1 is formed on the profile, and the notch 1 is used to accommodate the edge of the double-glass laminate; the upper surface 2 of the profile is higher than the notch 1; Figure 2 shows a typical double-glass laminate in the prior art Laminates, as shown in Figure 2, double-glass laminates have an upper surface glass 3 and a lower surface glass 4, the area 5 between the upper surface glass 3 and the lower surface glass 4 is generally used to set the packaging material EVA and solar cells Sheet etc.; Wherein, the edge of upper surface glass 3 and lower surface glass 4 is flush.
  • FIG. 3 shows a typical double-glass photovoltaic module in the prior art. As shown in FIG. 3 , a height difference H is formed between the upper surface 2 of the profile and the glass on the upper surface of the laminate.
  • the present invention provides a photovoltaic module, which can reduce the accumulation of dust on the upper surface of the photovoltaic module and improve the power generation and reliability of the photovoltaic module.
  • a photovoltaic module comprising a frame and a laminate, the frame is arranged on the outer periphery of the laminate, the frame includes several sections of profiles connected to each other, the profiles are formed to accommodate the laminate Notch on the edge of the laminate, the laminate has an upper surface glass, encapsulation material and battery sheet layers and a back sheet, the upper surface of the profile is not higher than the upper surface of the laminate, and the edge of the back sheet is accommodated in the groove In the mouth.
  • the upper surface of the profile is flush with the upper surface of the laminate.
  • the length of the upper glass is shorter than the length of the back plate, the width of the upper glass is smaller than the width of the back plate, and the upper glass and the back plate are in the laminate
  • the difference in size formed by the edge is less than or equal to the depth of the notch.
  • the backplane is lower surface glass.
  • the profile has an upper wall, a lower wall, a bottom wall, an outer wall and an inner wall, and the notch is formed between the upper wall, the lower wall and part of the outer wall.
  • the width of the upper wall is greater than or equal to the width of the lower wall.
  • the upper wall has an upper surface, and the upper surface is gradually inclined downward from the inner end to the outer end of the upper wall.
  • a contact surface is formed on the inner side of the upper wall, the contact surface is flat, and the height of the contact surface is less than or equal to the thickness of the glass on the upper surface and the thickness of the packaging material and the battery sheet.
  • the height of the contact surface is equal to the sum of the thickness of the upper surface glass and the thickness of the packaging material and the cell sheet.
  • a cavity is formed between the lower wall, the bottom wall, the outer side wall and the inner side wall, and in the cavity, the lower surface of the lower wall and/or the bottom Ribs are formed on the upper surface of the wall.
  • the bottom wall extends toward the inside of the profile to form a supporting edge.
  • the upper surface of the profile is not higher than the upper surface of the laminate.
  • the upper surface of the profile is flush with the upper surface of the laminate , so that the junction of the profile and the laminate will not form the accumulation of foreign matter such as dust, which in turn can improve the power generation and reliability of the photovoltaic module, reduce the cost of manual cleaning and maintenance, and thus reduce the operating cost of the photovoltaic power station.
  • the photovoltaic module provided by the present invention can form a double-glass photovoltaic module.
  • FIG. 1 is a schematic cross-sectional structure diagram of a profile of a photovoltaic module in the prior art
  • FIG. 2 is a schematic structural view of a laminate of a photovoltaic module in the prior art
  • Fig. 3 is a structural schematic diagram of a photovoltaic module in the prior art
  • Fig. 4 is a schematic cross-sectional structure diagram of a photovoltaic module provided by the present invention.
  • FIG. 5 is a schematic structural view of a laminate of a photovoltaic module provided by the present invention.
  • Fig. 6 is a schematic cross-sectional structure diagram of a profile of a photovoltaic module provided by the invention.
  • Fig. 7 is a schematic cross-sectional structure diagram of the profile of the photovoltaic module provided by the invention.
  • an embodiment of the present invention provides a photovoltaic module, including a frame and a laminate 100, the frame is arranged on the outer periphery of the laminate, the frame includes several sections of profiles 200, and several sections of profiles 200 are connected to each other, for example Several sections of profiles 200 can be connected by connectors (not shown) to form a certain fixed shape (such as square, rectangle), and the profile 200 is formed with a notch 206 for receiving the edge of the laminate 100 .
  • the frame of the photovoltaic module can be rectangular, with a pair of long sides and a pair of short sides, which can be realized by connecting several sections of profiles 200 to each other to form a rectangle.
  • FIG. 6 shows the cross-section of the profile 200 that forms the frame of the photovoltaic module.
  • Fig. 202 and part of the outer wall 204 can form a notch 206, the notch 206 opens to the inside of the profile 200, the notch 206 is used to accommodate the edge portion of the laminate 100, and wrap the edge of the laminate 100, and the layer
  • the pressing piece 100 plays the role of fixation and protection.
  • the laminate 100 may have an upper surface glass 101 , an encapsulation material (for example, EVA), a battery sheet layer 102 and a backplane 103 .
  • the upper surface of the upper surface glass 101 can constitute the upper surface of the laminate 100; the length of the upper surface glass 101 of the laminate 100 can be less than the length of the back plate 103, and the width of the upper surface glass 101 of the laminate 100 can be smaller than the back plate 103.
  • the width of the board 103 so that a dimension difference L1 is formed at the edge of the laminate 100.
  • the dimension difference L1 can be formed at least at one edge of the laminate 100.
  • all edges of the laminate 100 can form the above-mentioned dimensions Poor L1.
  • the dimensional differences L1 of the edges of the laminate 100 may be substantially equal or not.
  • the edge portion of the back plate 103 of the laminate 100 is accommodated in the notch 206 of the profile 100, and the upper surface glass 101, the packaging material and the battery sheet layer 102 are not accommodated in the notch 206 of the profile 100 Inside.
  • the dimension difference L1 formed by the upper surface glass 101 and the back plate 103 at the edge of the laminate 100 may be ⁇ the depth L2 of the notch 206 of the profile 200, that is, the dimension formed by the upper surface glass 101 and the back plate 103 at the edge of the laminate 100
  • the difference L1 can be less than or equal to the depth L2 of the notch 206 of the profile 200, so that the edge of the back plate 103 can be accommodated in the notch 206 of the profile 200, so that the outer peripheral surface of the upper surface glass 101 can be aligned with the profile 200.
  • the inner side end of the upper wall 201 is in contact.
  • the width D1 of the upper wall 201 can be ⁇ the width D2 of the lower wall 202, that is, the width D1 of the upper wall 201 can be greater than or equal to the width D2 of the lower wall 202, as shown in FIG. 7
  • the inner end of the upper wall 201 of the profile 200 can be formed with a contact surface 201b, the contact surface 201b is flat, and the height H1 of the contact surface 201b can be ⁇ the thickness of the upper surface glass 101 of the laminate 100 and the thickness of the packaging material and the battery sheet 102 sum H2.
  • the upper surface of the upper surface glass 101 of the laminate 100 can constitute the upper surface of the laminate 100, and the contact surface 201b can be used to contact the outer peripheral surface of the upper surface glass 101 of the laminate 100, by making The height H1 of the contact surface 201b is less than or equal to the sum H2 of the thickness of the glass 101 on the upper surface of the laminate 100 and the thickness of the packaging material and the battery layer 102, so that the upper surface of the profile 200 is not higher than the upper surface of the laminate 100.
  • the surface, that is, the upper surface of the profile 200 may be flush with the upper surface of the laminate 100 or the upper surface of the profile 200 may be lower than the upper surface of the laminate 100 .
  • the photovoltaic module provided by the embodiment of the present invention through the design of the laminate 100 and the frame profile 200, the upper surface of the profile 200 is not higher than the upper surface of the laminate 100.
  • the upper surface of the profile 200 and the layer The upper surface of the pressed part 100 is even, so that the junction of the profile 200 and the laminated part 100 will not form the accumulation of foreign matter such as dust, and then the power generation and reliability of the photovoltaic module can be improved, and the cost of manual cleaning and maintenance can be reduced. Reduce operating costs of photovoltaic power plants.
  • the photovoltaic module provided by the embodiment of the present invention can form a double-glass photovoltaic module.
  • the upper wall 201 may have an upper surface 201 a, and the upper surface 201 a gradually slopes downward from the inner end to the outer end of the upper wall 201 .
  • the end of the upper wall 201 near the inner side of the frame is the inner side of the upper wall 201
  • the end of the upper wall 201 near the outer side of the frame is the outer side of the upper wall 201
  • the upper surface 201a of the upper wall 201 can constitute the profile 200.
  • the upper surface, the upper surface 201a of the upper wall 201 gradually slopes downward from the end of the upper wall 201 near the inner side of the frame to the end of the upper wall 201 near the outer side of the frame, so that the upper surface 201a of the upper wall 201 is not higher than the laminate 100
  • the height of the planar contact surface 201b of the upper wall 201 that contacts the laminate 100 is relatively large.
  • the upper surface of the profile 200 may be flush with the upper surface of the laminate 100 . That is to say, the highest point of the upper surface 201a of the upper wall 201 is flush with the upper surface of the laminate 100.
  • the height H1 of the contact surface 201b is equal to the thickness of the glass 101 on the upper surface of the laminate 100 and the packaging material and The sum H2 of the thicknesses of the battery sheet layers 102 .
  • a cavity 207 can be formed between the lower wall 202, the bottom wall 203, the outer side wall 204 and the inner side wall 205 of the profile 200, and in the cavity 207, the lower surface of the lower wall 202 And/or the upper surface of the bottom wall 203 can be formed with reinforcing ribs 208 , and the mechanical strength of the profile 200 can be improved by means of the reinforcing ribs 208 .
  • the bottom wall 203 of the profile 200 may extend inward to form a supporting edge 209 .
  • the upper surface of the profile 200 constituting the main part of the module frame is not higher than the upper surface of the laminate 100, so that the junction of the frame and the laminate 100 of the formed photovoltaic module will not be higher than the laminated part 100. In this way, when the photovoltaic module is used outdoors, foreign matter such as dust is not easy to gather on the surface of the photovoltaic module, which improves the power generation and reliability of the photovoltaic module and reduces the maintenance cost of the photovoltaic module.
  • the photovoltaic module provided in this embodiment is different from the photovoltaic module provided in Embodiment 1 in that:
  • the back plate 103 of the photovoltaic module provided in this embodiment is glass, that is, the lower surface glass, so that the photovoltaic module provided in this embodiment can be a double-glass photovoltaic module.
  • the photovoltaic module provided by the embodiment of the present invention can reduce the accumulation of dust on the upper surface of the photovoltaic module, thereby improving the power generation and reliability of the photovoltaic module and reducing the maintenance cost of the photovoltaic module.
  • connection can also be a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two components.

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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  • Photovoltaic Devices (AREA)

Abstract

Disclosed is a photovoltaic module, comprising a frame and a laminated piece, the frame being arranged at the periphery of the laminated piece. The frame comprises multiple sections of profile material, the multiple sections of profile material being connected to each other, and a notch used to contain an edge of the laminated piece being formed in the profile material. The laminated piece has surface glass, a packaging material, a cell layer and a back plate. An upper surface of the profile material is not higher than the upper surface of the laminated piece, and the edge of the back plate of the laminated piece is contained in the notch of the profile material. In the photovoltaic module disclosed in the present invention, no height difference exists at the junction of the frame and the upper surface of the laminated piece, which can reduce the accumulation of dust on the upper surface of the photovoltaic module, thereby increasing generating capacity and reliability of the photovoltaic module, and lowering maintenance costs of the photovoltaic module.

Description

光伏组件Photovoltaic modules 技术领域technical field
本发明涉及太阳能技术领域，具体涉及一种光伏组件。The invention relates to the technical field of solar energy, in particular to a photovoltaic module.
背景技术Background technique
光伏组件(即太阳能电池板)是太阳能发电***中的核心部分，其作用是将太阳能转化为电能，并送往蓄电池中存储起来，或推动负载工作。光伏组件一般包括边框和层压件，边框的主体部分为型材，通过型材上的槽口将层压件的边缘进行包覆和固定。Photovoltaic modules (that is, solar panels) are the core part of the solar power generation system. Its function is to convert solar energy into electrical energy and send it to the storage battery for storage, or to promote load work. A photovoltaic module generally includes a frame and a laminate. The main part of the frame is a profile, and the edge of the laminate is covered and fixed through the notches on the profile.
光伏组件的层压件，包括上表面玻璃、EVA(Ethylene乙烯Vinyl乙烯基Acetate醋酸盐的简称)封装材料、电池片、背板等，经层压工艺形成。如果背板采用玻璃，则为双玻光伏组件。双玻光伏组件一般可以分为具有边框的双玻光伏组件和无边框的双玻光伏组件。具有边框的双玻光伏组件一般通过具有一定强度的型材包裹在层压件的外周而形成。Laminates of photovoltaic modules, including upper surface glass, EVA (abbreviation for Ethylene Vinyl Vinyl Acetate Acetate) encapsulation material, battery sheet, back sheet, etc., are formed by lamination process. If the backplane is made of glass, it is a double-glass photovoltaic module. Double-glass photovoltaic modules can generally be divided into double-glass photovoltaic modules with frames and double-glass photovoltaic modules without frames. A double-glass photovoltaic module with a frame is generally formed by wrapping a profile with a certain strength on the outer periphery of the laminate.
现有技术中，光伏组件的边框，其上表面会高于层压件的上表面玻璃，在长期使用过程中，灰尘等异物由于型材阻挡不易从光伏组件上清除，导致灰尘的聚集，灰尘的聚集会降低光伏组件的光电转换效率，降低光伏组件的发电量及可靠性。In the prior art, the upper surface of the frame of the photovoltaic module is higher than the glass on the upper surface of the laminate. During long-term use, foreign matter such as dust is not easy to be removed from the photovoltaic module due to the blocking of the profile, resulting in the accumulation of dust. Aggregation will reduce the photoelectric conversion efficiency of photovoltaic modules and reduce the power generation and reliability of photovoltaic modules.
以双玻光伏组件为例进行说明：Take the double-glass photovoltaic module as an example to illustrate:
图1-3示出了现有技术中一种典型的双玻光伏组件的结构示意图；其中：图1示出了现有技术中一种典型的双玻组件的型材的截面，如图1所示，型材上形成有槽口1，槽口1用来容纳双玻层压件的边缘；型材的上表面2高于槽口1；图2示出了现有技术中一种典型的双玻层压件，如图2所示， 双玻层压件具有上表面玻璃3和下表面玻璃4，上表面玻璃3和下表面玻璃4之间的区域5一般用于设置封装材料EVA和太阳能电池片等；其中，上表面玻璃3与下表面玻璃4的边缘平齐。安装时，层压件的边缘置入型材的槽口1内。图3示出了现有技术中一种典型的双玻光伏组件，如图3所示，型材的上表面2和层压件的上表面玻璃之间形成高度差H。Figure 1-3 shows a schematic structural view of a typical double-glass photovoltaic module in the prior art; wherein: Figure 1 shows a cross-section of a typical double-glass photovoltaic module in the prior art, as shown in Figure 1 As shown, a notch 1 is formed on the profile, and the notch 1 is used to accommodate the edge of the double-glass laminate; the upper surface 2 of the profile is higher than the notch 1; Figure 2 shows a typical double-glass laminate in the prior art Laminates, as shown in Figure 2, double-glass laminates have an upper surface glass 3 and a lower surface glass 4, the area 5 between the upper surface glass 3 and the lower surface glass 4 is generally used to set the packaging material EVA and solar cells Sheet etc.; Wherein, the edge of upper surface glass 3 and lower surface glass 4 is flush. When installed, the edge of the laminate is inserted into the notch 1 of the profile. FIG. 3 shows a typical double-glass photovoltaic module in the prior art. As shown in FIG. 3 , a height difference H is formed between the upper surface 2 of the profile and the glass on the upper surface of the laminate.
在户外使用的过程中，由于高度差H的存在，灰尘等异物容易聚集在光伏组件边缘处，影响光伏组件的发电量和可靠性，增加了电站的清理维护成本。During outdoor use, due to the height difference H, foreign matter such as dust is easy to gather at the edge of the photovoltaic module, which affects the power generation and reliability of the photovoltaic module and increases the cleaning and maintenance costs of the power station.
发明内容Contents of the invention
本发明针对上述技术问题，提供一种光伏组件，其能够减少光伏组件上表面灰尘的聚集，提高光伏组件的发电量和可靠性。Aiming at the above technical problems, the present invention provides a photovoltaic module, which can reduce the accumulation of dust on the upper surface of the photovoltaic module and improve the power generation and reliability of the photovoltaic module.
为此，本发明采用如下技术方案：For this reason, the present invention adopts following technical scheme:
一种光伏组件，包括边框和层压件，所述边框设置于所述层压件的外周，所述边框包括若干段型材，若干段型材相互连接，所述型材形成有用于容纳所述层压件边缘的槽口，所述层压件具有上表面玻璃、封装材料及电池片层以及背板，所述型材的上表面不高于层压件的上表面，背板边缘容纳于所述槽口内。A photovoltaic module, comprising a frame and a laminate, the frame is arranged on the outer periphery of the laminate, the frame includes several sections of profiles connected to each other, the profiles are formed to accommodate the laminate Notch on the edge of the laminate, the laminate has an upper surface glass, encapsulation material and battery sheet layers and a back sheet, the upper surface of the profile is not higher than the upper surface of the laminate, and the edge of the back sheet is accommodated in the groove In the mouth.
可选的，所述型材的上表面与所述层压件的上表面平齐。Optionally, the upper surface of the profile is flush with the upper surface of the laminate.
可选的，所述上表面玻璃的长度小于所述背板的长度，所述上表面玻璃的宽度小于所述背板的宽度，所述上表面玻璃与所述背板在所述层压件边缘形成的尺寸差小于或等于所述槽口的深度。Optionally, the length of the upper glass is shorter than the length of the back plate, the width of the upper glass is smaller than the width of the back plate, and the upper glass and the back plate are in the laminate The difference in size formed by the edge is less than or equal to the depth of the notch.
可选的，所述背板为下表面玻璃。Optionally, the backplane is lower surface glass.
可选的，所述型材具有上壁、下壁、底壁、外侧壁和内侧壁，所述上壁、下壁以及部分所述外侧壁之间形成所述槽口。Optionally, the profile has an upper wall, a lower wall, a bottom wall, an outer wall and an inner wall, and the notch is formed between the upper wall, the lower wall and part of the outer wall.
可选的，所述上壁的宽度大于或等于所述下壁的宽度。Optionally, the width of the upper wall is greater than or equal to the width of the lower wall.
可选的，所述上壁具有上表面，所述上表面由所述上壁的内侧端向外侧端逐渐向下倾斜。Optionally, the upper wall has an upper surface, and the upper surface is gradually inclined downward from the inner end to the outer end of the upper wall.
可选的，所述上壁的内侧端形成有接触面，所述接触面呈平面，所述接触面的高度小于或等于所述上表面玻璃的厚度与所述封装材料及电池片层的厚度之和。Optionally, a contact surface is formed on the inner side of the upper wall, the contact surface is flat, and the height of the contact surface is less than or equal to the thickness of the glass on the upper surface and the thickness of the packaging material and the battery sheet. Sum.
可选的，所述接触面的高度等于所述上表面玻璃的厚度与所述封装材料及电池片层的厚度之和。Optionally, the height of the contact surface is equal to the sum of the thickness of the upper surface glass and the thickness of the packaging material and the cell sheet.
可选的，所述下壁、所述底壁、所述外侧壁和所述内侧壁之间形成有型腔，在所述型腔内、所述下壁的下表面和/或所述底壁的上表面形成有加强筋。Optionally, a cavity is formed between the lower wall, the bottom wall, the outer side wall and the inner side wall, and in the cavity, the lower surface of the lower wall and/or the bottom Ribs are formed on the upper surface of the wall.
可选的，所述底壁向向所述型材的内侧延伸，形成支撑边。Optionally, the bottom wall extends toward the inside of the profile to form a supporting edge.
本发明提供的光伏组件，通过对层压件与边框型材的设计，使型材的上表面不高于层压件的上表面，可选的，型材的上表面与层压件的上表面平齐，从而使型材与层压件的交界处不会形成灰尘等异物的聚集，继而能够提高光伏组件的发电量和可靠性，减少人工清理维护成本，进而能够降低光伏电站的运营成本。当背板为下表面玻璃时，本发明提供的光伏组件可形成双玻光伏组件。In the photovoltaic module provided by the present invention, through the design of the laminate and the frame profile, the upper surface of the profile is not higher than the upper surface of the laminate. Optionally, the upper surface of the profile is flush with the upper surface of the laminate , so that the junction of the profile and the laminate will not form the accumulation of foreign matter such as dust, which in turn can improve the power generation and reliability of the photovoltaic module, reduce the cost of manual cleaning and maintenance, and thus reduce the operating cost of the photovoltaic power station. When the back plate is glass on the lower surface, the photovoltaic module provided by the present invention can form a double-glass photovoltaic module.
本发明的其它优点、目标和特征将部分通过下面的说明体现，部分还将通过对本发明的研究和实践而为本领域的技术人员所理解。Other advantages, objectives and features of the present invention will partly be embodied through the following descriptions, and partly will be understood by those skilled in the art through the study and practice of the present invention.
附图说明Description of drawings
图1为现有技术中的光伏组件的型材的截面结构示意图；FIG. 1 is a schematic cross-sectional structure diagram of a profile of a photovoltaic module in the prior art;
图2为现有技术中的光伏组件的层压件的结构示意图；FIG. 2 is a schematic structural view of a laminate of a photovoltaic module in the prior art;
图3为现有技术中的光伏组件的结构示意图；Fig. 3 is a structural schematic diagram of a photovoltaic module in the prior art;
图4为本发明提供的光伏组件的截面结构示意图；Fig. 4 is a schematic cross-sectional structure diagram of a photovoltaic module provided by the present invention;
图5为本发明提供的光伏组件的层压件的结构示意图；FIG. 5 is a schematic structural view of a laminate of a photovoltaic module provided by the present invention;
图6为发明提供的光伏组件的型材的截面结构示意图；Fig. 6 is a schematic cross-sectional structure diagram of a profile of a photovoltaic module provided by the invention;
图7为发明提供的光伏组件的型材的截面结构示意图；Fig. 7 is a schematic cross-sectional structure diagram of the profile of the photovoltaic module provided by the invention;
附图标记说明：Explanation of reference signs:
1-槽口；2-型材的上表面；3-上表面玻璃；4-下表面玻璃；5-上表面玻璃和下表面玻璃之间的区域；100-层压件；101-上表面玻璃；102-封装材料及电池片层；103-背板；200-型材；201-上壁；201a-上壁的上表面；201b-接触面；202-下壁；203-底壁；204-外侧壁；205-内侧壁；206-槽口；207-型腔；208-加强筋；209-支撑边。1-notch; 2-upper surface of profile; 3-upper surface glass; 4-lower surface glass; 5-area between upper surface glass and lower surface glass; 100-laminate; 101-upper surface glass; 102-encapsulation material and cell layer; 103-back plate; 200-profile; 201-upper wall; 201a-upper surface of the upper wall; 201b-contact surface; 202-lower wall; 203-bottom wall; ; 205-inside wall; 206-notch; 207-cavity; 208-reinforcing rib; 209-support edge.
具体实施方式Detailed ways
实施例1：Example 1:
如图4-7所示，本发明实施例提供一种光伏组件，包括边框和层压件100，边框设置于层压件的外周，边框包括若干段型材200，若干段型材200相互连接，例如，若干段型材200之间可以通过连接件(图中未示出)连接形成某一种固定的形状(例如方形、矩形)，型材200形成有用于容纳层压件100边缘的槽口206。作为一种典型的形状，光伏组件边框可以呈矩形，具有一对长边和一对短边，这可以通过使若干段型材200相互连接形成矩形而实现。图6示出了组成光伏组件边框的型材200的截面，如图6所示，型材200具有上壁201、下壁202、底壁203、外侧壁204和内侧壁205，上壁201、下壁202以及部分外侧壁204之间可以形成槽口206，槽口206向型材200的内侧开口，槽口206用于容纳层压件100的边缘部分，将层压件100的边缘包覆，对层压件100起到固定和保护的作用。As shown in Figures 4-7, an embodiment of the present invention provides a photovoltaic module, including a frame and a laminate 100, the frame is arranged on the outer periphery of the laminate, the frame includes several sections of profiles 200, and several sections of profiles 200 are connected to each other, for example Several sections of profiles 200 can be connected by connectors (not shown) to form a certain fixed shape (such as square, rectangle), and the profile 200 is formed with a notch 206 for receiving the edge of the laminate 100 . As a typical shape, the frame of the photovoltaic module can be rectangular, with a pair of long sides and a pair of short sides, which can be realized by connecting several sections of profiles 200 to each other to form a rectangle. Fig. 6 shows the cross-section of the profile 200 that forms the frame of the photovoltaic module. As shown in Fig. 202 and part of the outer wall 204 can form a notch 206, the notch 206 opens to the inside of the profile 200, the notch 206 is used to accommodate the edge portion of the laminate 100, and wrap the edge of the laminate 100, and the layer The pressing piece 100 plays the role of fixation and protection.
如图5所示，层压件100可以具有上表面玻璃101、封装材料(例如， 可以为EVA)及电池片层102以及背板103。上表面玻璃101的上表面可以构成层压件100的上表面；层压件100的上表面玻璃101的长度可以小于背板103的长度，层压件100的上表面玻璃101的宽度可以小于背板103的宽度，从而在层压件100的边缘形成尺寸差L1，该尺寸差L1可以至少形成在层压件100的一个边缘，可选的，层压件100的所有边缘均可以形成上述尺寸差L1。在具体数值上，层压件100各边缘的尺寸差L1可以大致相等，也可以不相等。本发明提供的光伏组件，仅层压件100的背板103的边缘部分容纳在型材100的槽口206内，上表面玻璃101与封装材料及电池片层102不容纳在型材100的槽口206内。上表面玻璃101与背板103在层压件100边缘形成的尺寸差L1可以≤型材200的槽口206的深度L2，即，上表面玻璃101与背板103在层压件100边缘形成的尺寸差L1可以小于或等于型材200的槽口206的深度L2，这样可以在使背板103的边缘容纳在型材200的槽口206内的基础上，使上表面玻璃101的外周面能够与型材200的上壁201的内侧端接触。As shown in FIG. 5 , the laminate 100 may have an upper surface glass 101 , an encapsulation material (for example, EVA), a battery sheet layer 102 and a backplane 103 . The upper surface of the upper surface glass 101 can constitute the upper surface of the laminate 100; the length of the upper surface glass 101 of the laminate 100 can be less than the length of the back plate 103, and the width of the upper surface glass 101 of the laminate 100 can be smaller than the back plate 103. The width of the board 103, so that a dimension difference L1 is formed at the edge of the laminate 100. The dimension difference L1 can be formed at least at one edge of the laminate 100. Optionally, all edges of the laminate 100 can form the above-mentioned dimensions Poor L1. In terms of specific numerical values, the dimensional differences L1 of the edges of the laminate 100 may be substantially equal or not. In the photovoltaic module provided by the present invention, only the edge portion of the back plate 103 of the laminate 100 is accommodated in the notch 206 of the profile 100, and the upper surface glass 101, the packaging material and the battery sheet layer 102 are not accommodated in the notch 206 of the profile 100 Inside. The dimension difference L1 formed by the upper surface glass 101 and the back plate 103 at the edge of the laminate 100 may be ≤ the depth L2 of the notch 206 of the profile 200, that is, the dimension formed by the upper surface glass 101 and the back plate 103 at the edge of the laminate 100 The difference L1 can be less than or equal to the depth L2 of the notch 206 of the profile 200, so that the edge of the back plate 103 can be accommodated in the notch 206 of the profile 200, so that the outer peripheral surface of the upper surface glass 101 can be aligned with the profile 200. The inner side end of the upper wall 201 is in contact.
作为一种具体和可选的实施方式，上壁201的宽度D1可以≥下壁202的宽度D2，即，上壁201的宽度D1可以大于或等于下壁202的宽度D2，图7示出了上壁201的宽度D1＞下壁202的宽度D2，即，上壁201的宽度D1大于下壁202的宽度D2的一种型材结构。As a specific and optional implementation, the width D1 of the upper wall 201 can be ≥ the width D2 of the lower wall 202, that is, the width D1 of the upper wall 201 can be greater than or equal to the width D2 of the lower wall 202, as shown in FIG. 7 The width D1 of the upper wall 201 > the width D2 of the lower wall 202 , that is, a profile structure in which the width D1 of the upper wall 201 is greater than the width D2 of the lower wall 202 .
型材200的上壁201内侧端可以形成有接触面201b，接触面201b呈平面，接触面201b的高度H1可以≤层压件100的上表面玻璃101的厚度与封装材料及电池片层102的厚度之和H2。The inner end of the upper wall 201 of the profile 200 can be formed with a contact surface 201b, the contact surface 201b is flat, and the height H1 of the contact surface 201b can be ≤ the thickness of the upper surface glass 101 of the laminate 100 and the thickness of the packaging material and the battery sheet 102 sum H2.
在实际应用中，层压件100的上表面玻璃101的上表面可以构成层压件100的上表面，接触面201b可以用于与层压件100的上表面玻璃101的外周面接触，通过使接触面201b的高度H1小于或等于层压件100的上表面玻璃101的厚度与封装材料及电池片层102的厚度之和H2，可以使型材200 的上表面不高于层压件100的上表面，也就是说，可以使型材200的上表面与层压件100的上表面平齐，或者使型材200的上表面低于层压件100的上表面。In practical application, the upper surface of the upper surface glass 101 of the laminate 100 can constitute the upper surface of the laminate 100, and the contact surface 201b can be used to contact the outer peripheral surface of the upper surface glass 101 of the laminate 100, by making The height H1 of the contact surface 201b is less than or equal to the sum H2 of the thickness of the glass 101 on the upper surface of the laminate 100 and the thickness of the packaging material and the battery layer 102, so that the upper surface of the profile 200 is not higher than the upper surface of the laminate 100. The surface, that is, the upper surface of the profile 200 may be flush with the upper surface of the laminate 100 or the upper surface of the profile 200 may be lower than the upper surface of the laminate 100 .
本发明实施例提供的光伏组件，通过对层压件100与边框型材200的设计，使型材200的上表面不高于层压件100的上表面，可选的，型材200的上表面与层压件100的上表面平齐，从而使型材200与层压件100的交界处不会形成灰尘等异物的聚集，继而能够提高光伏组件的发电量和可靠性，减少人工清理维护成本，进而能够降低光伏电站的运营成本。当背板103为下表面玻璃时，本发明实施例提供的光伏组件可形成双玻光伏组件。In the photovoltaic module provided by the embodiment of the present invention, through the design of the laminate 100 and the frame profile 200, the upper surface of the profile 200 is not higher than the upper surface of the laminate 100. Optionally, the upper surface of the profile 200 and the layer The upper surface of the pressed part 100 is even, so that the junction of the profile 200 and the laminated part 100 will not form the accumulation of foreign matter such as dust, and then the power generation and reliability of the photovoltaic module can be improved, and the cost of manual cleaning and maintenance can be reduced. Reduce operating costs of photovoltaic power plants. When the back plate 103 is glass on the lower surface, the photovoltaic module provided by the embodiment of the present invention can form a double-glass photovoltaic module.
作为一种具体和可选的实施方式，上壁201可以具有上表面201a，上表面201a由上壁201的内侧端向外侧端逐渐向下倾斜。As a specific and optional implementation manner, the upper wall 201 may have an upper surface 201 a, and the upper surface 201 a gradually slopes downward from the inner end to the outer end of the upper wall 201 .
具体来说，上壁201的靠近边框内侧的一端为上壁201的内侧端，上壁201的靠近边框外侧的一端为上壁201的外侧端，上壁201的上表面201a可以构成型材200的上表面，上壁201的上表面201a由上壁201靠近边框内侧的一端向上壁201靠近边框外侧的一端逐渐向下倾斜，这样可以在上壁201的上表面201a不高于层压件100的上表面，即，型材200的上表面不高于层压件100的上表面的基础上，使得上壁201的与层压件100接触的呈平面的接触面201b的高度较大。Specifically, the end of the upper wall 201 near the inner side of the frame is the inner side of the upper wall 201, and the end of the upper wall 201 near the outer side of the frame is the outer side of the upper wall 201, and the upper surface 201a of the upper wall 201 can constitute the profile 200. The upper surface, the upper surface 201a of the upper wall 201 gradually slopes downward from the end of the upper wall 201 near the inner side of the frame to the end of the upper wall 201 near the outer side of the frame, so that the upper surface 201a of the upper wall 201 is not higher than the laminate 100 On the basis that the upper surface, that is, the upper surface of the profile 200 is not higher than the upper surface of the laminate 100, the height of the planar contact surface 201b of the upper wall 201 that contacts the laminate 100 is relatively large.
可选的，型材200的上表面可以与层压件100的上表面平齐。也就是说，上壁201的上表面201a的最高处与层压件100的上表面平齐，此时，接触面201b的高度H1等于层压件100的上表面玻璃101的厚度与封装材料及电池片层102的厚度之和H2。Optionally, the upper surface of the profile 200 may be flush with the upper surface of the laminate 100 . That is to say, the highest point of the upper surface 201a of the upper wall 201 is flush with the upper surface of the laminate 100. At this time, the height H1 of the contact surface 201b is equal to the thickness of the glass 101 on the upper surface of the laminate 100 and the packaging material and The sum H2 of the thicknesses of the battery sheet layers 102 .
为了使型材200具有更好的机械强度，型材200的下壁202、底壁203、外侧壁204和内侧壁205之间可以形成有型腔207，在型腔207内，下壁202的下表面和/或底壁203的上表面可以形成有加强筋208，借助加强筋208可 以提高型材200的机械强度。In order to make the profile 200 have better mechanical strength, a cavity 207 can be formed between the lower wall 202, the bottom wall 203, the outer side wall 204 and the inner side wall 205 of the profile 200, and in the cavity 207, the lower surface of the lower wall 202 And/or the upper surface of the bottom wall 203 can be formed with reinforcing ribs 208 , and the mechanical strength of the profile 200 can be improved by means of the reinforcing ribs 208 .
可选的，型材200的底壁203可以向内侧延伸，形成支撑边209。Optionally, the bottom wall 203 of the profile 200 may extend inward to form a supporting edge 209 .
本发明实施例中，构成组件边框主体部分的型材200的上表面不高于层压件100的上表面，从而形成的光伏组件，其边框与层压件100的交界处不会高出层压件100上表面，这样，光伏组件在户外使用过程中，灰尘等异物不容易聚集在光伏组件的表面，提高了光伏组件的发电量和可靠性，减少了光伏组件的维护成本。In the embodiment of the present invention, the upper surface of the profile 200 constituting the main part of the module frame is not higher than the upper surface of the laminate 100, so that the junction of the frame and the laminate 100 of the formed photovoltaic module will not be higher than the laminated part 100. In this way, when the photovoltaic module is used outdoors, foreign matter such as dust is not easy to gather on the surface of the photovoltaic module, which improves the power generation and reliability of the photovoltaic module and reduces the maintenance cost of the photovoltaic module.
本发明实施例中的附图，仅为示例性说明，不代表实际的尺寸和比例关系。The drawings in the embodiments of the present invention are for illustrative purposes only, and do not represent actual dimensions and proportions.
实施例2：Example 2:
本实施例提供的光伏组件与实施例1提供的光伏组件的不同之处在于：The photovoltaic module provided in this embodiment is different from the photovoltaic module provided in Embodiment 1 in that:
本实施例提供的光伏组件的背板103为玻璃，即下表面玻璃，从而使得本实施例提供的光伏组件可以为双玻光伏组件。The back plate 103 of the photovoltaic module provided in this embodiment is glass, that is, the lower surface glass, so that the photovoltaic module provided in this embodiment can be a double-glass photovoltaic module.
本实施例提供的光伏组件的原理及有益效果与实施例1提供的光伏组件的原理及有益效果相同，在此就不再赘述。The principle and beneficial effects of the photovoltaic module provided in this embodiment are the same as those of the photovoltaic module provided in Embodiment 1, and will not be repeated here.
综上所述，本发明实施例提供的光伏组件，能够减少光伏组件上表面灰尘的聚集，进而能够提高光伏组件的发电量及可靠性，降低光伏组件的维护成本。In summary, the photovoltaic module provided by the embodiment of the present invention can reduce the accumulation of dust on the upper surface of the photovoltaic module, thereby improving the power generation and reliability of the photovoltaic module and reducing the maintenance cost of the photovoltaic module.
在本发明实施例的描述中，“组件”、“光伏组件”具有相同的含义；“组件边框”、“光伏组件边框”亦具有相同的含义；定义型材的槽口侧为“内侧”，与“内侧”相背的一侧即为“外侧”。In the description of the embodiment of the present invention, "component" and "photovoltaic module" have the same meaning; The side opposite the "inside" is the "outside".
在本发明实施例的描述中，需要说明的是，术语“垂直”、“水平”、“上”、“下”、“左”、“右”、“内”、“外”、“侧边”、“宽度”、“高度”等指示的方位、方向或位置关系为基于附图所示的方位或位置关系， 仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the embodiments of the present invention, it should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right", "inner", "outer", "side ", "width", "height" and other indicated orientations, directions or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”“某某上设置有”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接；可以是机械连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", "connected" and "set on XX" should be understood in a broad sense, for example, it can be fixed A connection can also be a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Claims (11)

  1. 一种光伏组件，包括边框和层压件(100)，所述边框设置于所述层压件(100)的外周，所述边框包括若干段型材(200)，若干段所述型材(200)相互连接，所述型材(200)形成有用于容纳所述层压件(100)边缘的槽口(206)，所述层压件(100)具有上表面玻璃(101)、封装材料及电池片层(102)以及背板(103)，其特征在于，所述型材(200)的上表面不高于所述层压件(100)的上表面，所述背板(103)边缘容纳于所述槽口(206)内。A photovoltaic module, comprising a frame and a laminate (100), the frame is arranged on the outer periphery of the laminate (100), the frame includes several sections of profiles (200), and several sections of the profiles (200) connected to each other, the profile (200) is formed with a notch (206) for receiving the edge of the laminate (100), the laminate (100) has an upper surface glass (101), packaging material and battery sheet layer (102) and backboard (103), characterized in that the upper surface of the profile (200) is not higher than the upper surface of the laminate (100), and the edge of the backboard (103) is accommodated in the inside the notch (206).
  2. 根据权利要求1所述的光伏组件，其特征在于，所述型材(200)的上表面与所述层压件(100)的上表面平齐。The photovoltaic module according to claim 1, characterized in that, the upper surface of the profile (200) is flush with the upper surface of the laminate (100).
  3. 根据权利要求1所述的光伏组件，其特征在于，所述上表面玻璃(101)的长度小于所述背板(103)的长度，所述上表面玻璃(101)的宽度小于背板(103)的宽度，所述上表面玻璃(101)与所述背板(103)在所述层压件(100)边缘形成的尺寸差小于或等于所述槽口(206)的深度。The photovoltaic module according to claim 1, characterized in that, the length of the upper surface glass (101) is shorter than the length of the back plate (103), and the width of the upper surface glass (101) is smaller than the back plate (103) ), the size difference between the upper surface glass (101) and the back plate (103) at the edge of the laminate (100) is less than or equal to the depth of the notch (206).
  4. 根据权利要求1所述的光伏组件，其特征在于，所述背板(103)为下表面玻璃。The photovoltaic module according to claim 1, characterized in that, the back plate (103) is lower surface glass.
  5. 根据权利要求1所述的光伏组件，其特征在于，所述型材(200)具有上壁(201)、下壁(202)、底壁(203)、外侧壁(204)和内侧壁(205)，所述上壁(201)、所述下壁(202)以及部分所述外侧壁(204)之间形成所述槽口(206)。The photovoltaic module according to claim 1, characterized in that, the profile (200) has an upper wall (201), a lower wall (202), a bottom wall (203), an outer side wall (204) and an inner side wall (205) , the notch (206) is formed between the upper wall (201), the lower wall (202) and part of the outer wall (204).
  6. 根据权利要求5所述的光伏组件，其特征在于，所述上壁(201)的宽度大于或等于所述下壁(202)的宽度。The photovoltaic module according to claim 5, characterized in that, the width of the upper wall (201) is greater than or equal to the width of the lower wall (202).
  7. 根据权利要求5所述的光伏组件，其特征在于，所述上壁(201)具有上表面(201a)，所述上表面(201a)由所述上壁(201)的内侧端向外侧端逐渐向下倾斜。The photovoltaic module according to claim 5, characterized in that, the upper wall (201) has an upper surface (201a), and the upper surface (201a) gradually extends from the inner end to the outer end of the upper wall (201). slope down.
  8. 根据权利要求5所述的光伏组件，其特征在于，所述上壁(201)的内侧端形成有接触面(201b)，所述接触面(201b)呈平面，所述接触面(201b)的高度小于或等于所述上表面玻璃(101)的厚度与所述封装材料及电池片层(102)的厚度之和。The photovoltaic module according to claim 5, characterized in that a contact surface (201b) is formed on the inner side of the upper wall (201), the contact surface (201b) is flat, and the contact surface (201b) The height is less than or equal to the sum of the thickness of the upper surface glass (101) and the thickness of the packaging material and battery sheet (102).
  9. 根据权利要求8所述的光伏组件，其特征在于，所述接触面(201b)的高度等于所述上表面玻璃(101)的厚度与所述封装材料及电池片层(102)的厚度之和。The photovoltaic module according to claim 8, characterized in that, the height of the contact surface (201b) is equal to the sum of the thickness of the upper surface glass (101) and the thickness of the packaging material and battery sheet (102) .
  10. 根据权利要求5所述的光伏组件，其特征在于，所述下壁(202)、所述底壁(203)、所述外侧壁(204)和所述内侧壁(205)之间形成有型腔(207)，在所述型腔(207)内，所述下壁(202)的下表面和/或所述底壁(203)的上表面形成有加强筋(208)。The photovoltaic module according to claim 5, characterized in that, a shaped A cavity (207). In the cavity (207), reinforcing ribs (208) are formed on the lower surface of the lower wall (202) and/or the upper surface of the bottom wall (203).
  11. 根据权利要求5所述的光伏组件，其特征在于，所述底壁(203)向所述型材(200)的内侧延伸，形成支撑边(209)。The photovoltaic module according to claim 5, characterized in that, the bottom wall (203) extends toward the inner side of the profile (200) to form a supporting edge (209).
PCT/CN2022/127906 2021-10-27 2022-10-27 Photovoltaic module WO2023072185A1 (en)

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CN216490359U (en) * 2021-10-27 2022-05-10 天合光能股份有限公司 Photovoltaic module

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