A lightweight, foldable photovoltaic module and mounting structure therefor

Abstract

The present application relates to a kind of lightweight folding photovoltaic module and its mounting structure, the photovoltaic module is packaged by solar cell piece through hot melt adhesive film and front plate, back plate, the bending area of folding being preset in the middle of the photovoltaic module, the photovoltaic module edge is equipped with extended mounting area, the extended mounting area is symmetrical structure, the flexible connection cloth is integrally formed with hot melt adhesive film by hot melt composite process and is formed as part of the photovoltaic module;Mounting structure includes lightweight folding photovoltaic module, and sleeve, double-convex platform pulley, track, the sleeve is passed through the sleeve mouth of photovoltaic module, the double-convex platform pulley is installed in track, and the sleeve is fixed and locked with double-convex platform pulley by screw or bolt.The purpose of the present application is to provide a kind of lightweight folding photovoltaic module and its mounting structure, by its simple and convenient mounting structure, make lightweight folding photovoltaic module better be applied to building decoration integration.

Description

Technical Field

[0001] This invention relates to the field of solar photovoltaics, and more particularly to a lightweight foldable photovoltaic module and its installation structure. Background Technology

[0002] With the rapid technological advancements in the photovoltaic industry, lightweight photovoltaic modules are gradually emerging in the market. Due to their light weight, these modules can replace traditional glass modules for installation on roofs with weaker load-bearing capacity. Along with the promotion of lightweight photovoltaic modules, lightweight foldable photovoltaic modules have also emerged.

[0003] However, compared to the lightweight photovoltaic modules that can be glued together and installed on the building roof, the folding function of lightweight foldable photovoltaic modules is much less useful for building decoration integration. Their main development area is in the application product market, where they are mostly made into portable photovoltaic products with multiple folding styles for people to use.

[0004] How to achieve the mass installation of lightweight foldable photovoltaic modules and their extensive application in building decoration integration has become a problem to be solved in the industry.

[0005] Therefore, based on its years of focused research in the field of photovoltaic module installation structure applications, the applicant has decided to seek technical solutions to address the above-mentioned technical problems. Summary of the Invention

[0006] To address the above problems, the present invention provides a lightweight foldable photovoltaic module and its installation structure.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] A lightweight foldable photovoltaic module is disclosed, wherein the photovoltaic module consists of solar cells encapsulated with a front panel and a back panel by hot melt adhesive film. The photovoltaic module has a pre-set folding area in the middle and an extension mounting area on the edge of the photovoltaic module. The extension mounting area has a symmetrical structure and is located at least on the long side or short side of the photovoltaic module. The extension mounting area is formed by integrally molding flexible connecting fabric and hot melt adhesive film into a part of the photovoltaic module through a hot melt composite process.

[0009] Furthermore, the bending area is provided with a copper braided strip, which is integrally formed with the hot melt adhesive film, and the battery cells are electrically connected through the copper braided strip.

[0010] Furthermore, the bending area is connected to the photovoltaic modules on both sides by silicone rubber-coated fiberglass cloth.

[0011] Furthermore, the photovoltaic module is encapsulated by solar cells with a front panel and flexible connecting fabric via hot melt adhesive film. A copper braided strip is provided in the bending area in the middle of the photovoltaic module. The copper braided strip is integrally formed with the hot melt adhesive film, and the solar cells are electrically connected through the copper braided strip.

[0012] Furthermore, the photovoltaic module is encapsulated by solar cells with a front panel and flexible connecting fabric via hot melt adhesive film, and the photovoltaic module is directly connected to the photovoltaic modules on both sides in the middle bending area via the flexible connecting fabric.

[0013] Furthermore, the flexible connecting fabric has a sleeve, which is sewn with fire-retardant and flame-retardant sewing thread, especially fiberglass sewing thread.

[0014] Furthermore, the flexible connecting fabric is selected from any one of silicone rubber coated fiberglass cloth, basalt fiber fireproof cloth, acrylic cotton fiber fireproof cloth, Nomex fireproof cloth, SM fireproof cloth, blue fiberglass fireproof cloth, and aluminum foil fireproof cloth.

[0015] An installation structure for a lightweight foldable photovoltaic module is provided. The installation structure includes the lightweight foldable photovoltaic module, a sleeve, a double-protruding pulley, and a track. The sleeve passes through the opening of the lightweight foldable photovoltaic module, the double-protruding pulley is installed in the track, and the sleeve is fixed and locked to the double-protruding pulley by screws or bolts.

[0016] Furthermore, the end of the sleeve is provided with an opening and pre-drilled screw or bolt mounting holes.

[0017] Furthermore, the double-protrusion pulley is provided with two mounting protrusions, which can simultaneously install two sleeves.

[0018] As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

[0019] (1) Its simple and convenient installation structure solves the installation problem of lightweight foldable photovoltaic modules in building decoration integration;

[0020] (2) By extending the installation area of ​​the lightweight foldable photovoltaic module and the metal installation mechanism through a flexible connection, a flexible transition of the connection area of ​​the lightweight foldable photovoltaic module is achieved, thus extending its service life;

[0021] (3) By designing double-protruding pulleys, it is possible to fix the individual folding edges of two connected lightweight foldable photovoltaic modules together, while ensuring the independence of each module during installation and disassembly, which is beneficial for installation and disassembly operations. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0023] Figure 1 This is a schematic diagram of a lightweight foldable photovoltaic structure according to Embodiment 1 of the present invention;

[0024] Figure 2 This is a schematic diagram of a lightweight foldable photovoltaic structure according to Embodiment 2 of the present invention;

[0025] Figure 3 This is a schematic diagram of a lightweight foldable photovoltaic structure according to Embodiment 3 of the present invention;

[0026] Figure 4 This is a schematic diagram of a lightweight foldable photovoltaic structure according to Embodiment 4 of the present invention;

[0027] Figure 5 This is a schematic diagram of the installation structure of the present invention;

[0028] Figure 6 for Figure 5 A magnified view of a local area;

[0029] Figure 7 This is an exploded view of the installation structure of the present invention;

[0030] Figure 8 for Figure 7 A magnified view of a local area; Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0032] Example 1:

[0033] refer to Figure 1 As shown, a lightweight foldable photovoltaic module of the present invention has an extended mounting area on its edge. This extended mounting area has a symmetrical structure and is located at least on the long or short side of the photovoltaic module. The extended mounting area is integrally formed by a hot-melt composite process, where a flexible connecting fabric a1 and a hot-melt adhesive film a2 are integrally molded and become part of the photovoltaic module. The photovoltaic module can be folded, closed, and unfolded along the bending area in the middle of the module. The flexible connecting fabric a1 has a sleeve a3. The flexible connecting fabric a1 is made of silicone rubber coated fiberglass cloth. The sleeve a3 is sewn using fiberglass sewing thread a4.

[0034] refer to Figure 1As shown, the lightweight foldable photovoltaic module structure consists of solar cell b3 encapsulated with front panel b1 and back panel b2 via hot melt adhesive film a2, and copper braided strip b4 provided in the bending area, through which the solar cell b3 is electrically connected.

[0035] refer to Figure 5 , Figure 6 , Figure 7 , Figure 8 The diagram shows the installation structure of the lightweight foldable photovoltaic module of the present invention, including the lightweight foldable photovoltaic module 100, a sleeve 200, a double-protruding pulley 300, and a track 400. During installation, the sleeve 200 is passed through the opening of the lightweight foldable photovoltaic module 100; the double-protruding pulley 300 is inserted into the track 400; and the sleeve 200 is then fixed and locked to the double-protruding pulley 300 by bolts 500.

[0036] refer to Figure 6 , Figure 8 As shown, the track 400 is made of electrophoretic aluminum alloy. The sleeve 200 is also made of electrophoretic aluminum alloy, with an opening at the end and pre-drilled bolt mounting holes. The double-protrusion pulley 300 has two mounting protrusions, allowing for the simultaneous mounting of two sleeves 200, and securing the sleeve openings on individual folding edges of two connected lightweight folding photovoltaic modules to the same double-protrusion pulley 300. The mounting protrusion area of ​​the double-protrusion pulley 300 is made of electrophoretic aluminum alloy, while the pulley itself is made of nylon.

[0037] Example 2:

[0038] The remaining technical solutions in this embodiment 2 are the same as those in embodiment 1, except that, please refer to further details. Figure 2 As shown in this embodiment 2, the lightweight foldable photovoltaic module structure is that the solar cell b3 is encapsulated with the front panel b1 and the back panel b2 by a hot melt adhesive film a2, and no copper braided strip is set in the bending area. Instead, it is connected by a silicone rubber coated glass fiber cloth b5.

[0039] Example 3:

[0040] The remaining technical solutions in Embodiment 3 are the same as in Embodiment 1, except that, please refer to [further details]. Figure 3 As shown, in this embodiment 3, the lightweight foldable photovoltaic module structure is that the solar cell b3 is encapsulated with the front panel b1 and the flexible connecting fabric a1 through the hot melt adhesive film a2, and the bending area is provided with copper braided strip b4, and the solar cell b3 is electrically connected through the copper braided strip b4.

[0041] Example 4:

[0042] The remaining technical solutions in Embodiment 4 are the same as in Embodiment 1, except that, please refer to [further details]. Figure 4As shown, in this embodiment 4, the lightweight foldable photovoltaic module structure is that the solar cell b3 is encapsulated with the front panel b1 and the flexible connecting fabric a1 through the hot melt adhesive film a2. The bending area is not provided with copper braided strips, and is connected by the flexible connecting fabric a1.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lightweight foldable photovoltaic module, wherein the photovoltaic module consists of solar cells encapsulated with a front panel and a back panel by a hot melt adhesive film, characterized in that: The photovoltaic module has a pre-set folding area in the middle, and an extension installation area is provided on the edge of the photovoltaic module. The extension installation area has a symmetrical structure and is provided at least on the long side or short side of the photovoltaic module. The extension installation area is formed by integrally molding flexible connecting fabric and hot melt adhesive film into part of the photovoltaic module through a hot melt composite process.

2. The lightweight foldable photovoltaic module according to claim 1, characterized in that: The bending area is provided with a copper braided strip, which is integrally formed with the hot melt adhesive film, and the battery cells are electrically connected through the copper braided strip.

3. The lightweight foldable photovoltaic module according to claim 1, characterized in that: The bending area is connected to the photovoltaic modules on both sides by silicone rubber-coated fiberglass cloth.

4. The lightweight foldable photovoltaic module according to claim 1, characterized in that: The photovoltaic module consists of solar cells encapsulated with a front panel and flexible connecting fabric via hot melt adhesive film. A copper braided strip is provided in the bending area in the middle of the photovoltaic module. The copper braided strip is integrally formed with the hot melt adhesive film, and the solar cells are electrically connected through the copper braided strip.

5. The lightweight foldable photovoltaic module according to claim 1, characterized in that: The photovoltaic module consists of solar cells encapsulated with a front panel and flexible connecting fabric via hot melt adhesive film. The photovoltaic module is directly connected to the photovoltaic modules on both sides in the middle bending area via the flexible connecting fabric.

6. The lightweight foldable photovoltaic module according to claim 1, characterized in that: The flexible connecting fabric has a sleeve, which is sewn with fire-resistant and flame-retardant sewing thread.

7. The lightweight foldable photovoltaic module according to claim 1, characterized in that: The flexible connecting fabric is selected from any one of the following: silicone rubber coated fiberglass cloth, basalt fiber fireproof cloth, acrylic cotton fiber fireproof cloth, Nomex fireproof cloth, SM fireproof cloth, blue fiberglass fireproof cloth, and aluminum foil fireproof cloth.

8. An installation structure for a lightweight foldable photovoltaic module as described in any one of claims 1 to 7, characterized in that: The installation structure includes the lightweight foldable photovoltaic module, as well as a sleeve, a double-protruding pulley, and a track. The sleeve passes through the opening of the lightweight foldable photovoltaic module, the double-protruding pulley is installed in the track, and the sleeve is fixed and locked to the double-protruding pulley by screws or bolts.

9. The mounting structure of the lightweight foldable photovoltaic module according to claim 8, characterized in that: The end of the sleeve is provided with an opening and pre-drilled screw or bolt mounting holes.

10. The mounting structure of the lightweight foldable photovoltaic module according to claim 8, characterized in that: The double-protrusion pulley is provided with two mounting protrusions, which can install two sleeves at the same time.

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