Light photovoltaic system

Abstract

The utility model relates to the field of photovoltaic technology, in particular to a light photovoltaic system, which comprises a reinforcing back plate, a plurality of first mounting holes and a plurality of second mounting holes, the battery assembly comprises a transparent front plate, a battery piece and a KPF back plate which are sequentially arranged, the transparent front plate wraps the front face of the battery piece through a first adhesive film, the KPF back plate wraps the back face of the battery piece through a second adhesive film, and the side, away from the battery piece, of the KPF back plate is arranged on the surface of the reinforcing back plate in an attached mode. The technical problems that an existing light photovoltaic module is large in flexibility but prone to deformation, and secondary movement cannot be achieved due to the fact that the existing light photovoltaic module is fixed in an adhesive mode are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a lightweight photovoltaic system. Background Art

[0002] Compared with traditional silicon-based solar panels, lightweight photovoltaic modules are lighter, thinner and more flexible. Due to their light weight, easy to move and easy to install, they are widely used in outdoor activities, camping, boats, mobile power supply and other scenarios.

[0003] In the related art, the front and rear plates of lightweight photovoltaic modules are usually made of polymer materials or flexible materials, which are highly flexible but easily deformed, and are fixed by gluing and cannot be moved a second time. Utility Model Content

[0004] The utility model provides a lightweight photovoltaic system, which solves the technical problems that the existing lightweight photovoltaic components are highly flexible but easily deformed, and are fixed by gluing and cannot be moved a second time.

[0005] In view of this, the utility model provides a lightweight photovoltaic system, comprising:

[0006] A reinforced back plate is provided with a plurality of first mounting holes for mounting evenly along the periphery;

[0007] The battery assembly comprises a transparent front plate, a battery cell and a KPF back plate which are arranged in sequence, wherein the transparent front plate covers the front surface of the battery cell through a first adhesive film, the KPF back plate covers the back surface of the battery cell through a second adhesive film, and the side of the KPF back plate away from the battery cell is adhered to the surface of the reinforced back plate.

[0008] Optionally, the reinforced back plate is made of metal.

[0009] Optionally, the reinforced back panel is an aluminum honeycomb panel.

[0010] Optionally, the reinforced back panel is a glass fiber honeycomb panel.

[0011] Optionally, a frame is further included, the frame covers the periphery of the reinforcing back plate and the battery assembly, and a second mounting hole is provided on the frame corresponding to the first mounting hole.

[0012] Optionally, the KPF backboard is bonded to the surface of the reinforced backboard by an adhesive.

[0013] Optionally, the adhesive is made of structural sealant, polyurethane sealant, weather-resistant sealant or adhesive film.

[0014] Optionally, a plurality of wiring holes are provided on a side of the reinforcing back plate facing away from the battery assembly, and the wiring holes are suitable for installing a junction box.

[0015] The technical solution of the utility model has the following advantages:

[0016] In the utility model, by connecting the transparent front plate, the battery cell and the KPF back plate with the first adhesive film and the second adhesive film, the transparent front plate can protect the battery cell and has waterproof performance, and the KPF back plate is connected to the back of the battery cell, which also plays a protective and supporting role, and the KPF back plate can improve the overall heat dissipation, heat resistance, water resistance and weather resistance. The cost of the KPF back plate is relatively low, which can save costs. In addition, the side of the KPF back plate away from the battery cell is bonded to the surface of the reinforced back plate, and the supporting strength is improved by the reinforced back plate, so that the battery assembly can be prevented from being deformed due to its large flexibility during use, resulting in hidden cracks in the battery cell, thereby reducing the power generation efficiency and affecting the power supply performance. The first mounting hole on the reinforced back plate is convenient for installation, and it can be fixed through the first mounting hole by means of a strap, a metal clamp, etc. The fixing method is simple, easy to install, and easy to disassemble for secondary movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 An exploded diagram of the structure of a lightweight photovoltaic system provided by the utility model;

[0019] Figure 2 A front view of a lightweight photovoltaic system provided by the utility model;

[0020] Figure 3 A rear view of a lightweight photovoltaic system provided by the utility model;

[0021] Figure 4 This is a rear view of the reinforced back plate provided by the utility model.

[0022] Description of reference numerals:

[0023] 1. Strengthened back panel; 2. First mounting hole; 3. Transparent front panel; 4. Battery cell; 5. KPF back panel; 6. First adhesive film; 7. Second adhesive film; 8. Frame; 9. Second mounting hole; 10. Wiring hole; 11. Junction box. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] Example 1

[0029] Please refer to the figure, this embodiment provides a lightweight photovoltaic system, including: a reinforced backplane 1, with a plurality of first mounting holes 2 for installation evenly arranged along the periphery; a battery assembly, including a transparent front plate 3, battery cells 4 and a KPF backplane 5 arranged in sequence, the transparent front plate 3 covers the front side of the battery cell 4 through a first adhesive film 6, the KPF backplane 5 covers the back side of the battery cell 4 through a second adhesive film 7, and the side of the KPF backplane 5 away from the battery cell 4 is adhered to the surface of the reinforced backplane 1.

[0030] It should be noted that the first adhesive film 6 and the second adhesive film 7 are both connected by hot melting; the reinforcing back plate 1 is made of a hard material.

[0031] In this embodiment, by connecting the transparent front plate 3, the battery cell 4 and the KPF back plate 5 with the first adhesive film 6 and the second adhesive film 7, the transparent front plate 3 can protect the battery cell 4 and has waterproof performance, and the KPF back plate 5 is connected to the back of the battery cell 4, which also plays a protective and supporting role, and the KPF back plate 5 can improve the overall heat dissipation, heat resistance, water resistance and weather resistance. The cost of the KPF back plate 5 is relatively low, which can save costs. In addition, the side of the KPF back plate 5 away from the battery cell 4 is laminated on the surface of the reinforced back plate 1, and the supporting strength is improved by strengthening the back plate 1, so as to avoid deformation of the battery assembly due to its large flexibility during use, resulting in hidden cracks in the battery cell, thereby reducing the power generation efficiency and affecting the power supply performance. The first mounting hole 2 on the reinforced back plate 1 is convenient for installation, and it can be fixed through the first mounting hole 2 by means of a strap, a metal clamp, etc. The fixing method is simple, easy to install, and easy to disassemble for secondary movement.

[0032] Example 2

[0033] As a further improvement to Example 1, the material of the reinforced back plate 1 is metal.

[0034] In this embodiment, the material of the reinforced back plate 1 is metal to improve the structural strength. At the same time, the metal material has good heat dissipation performance. The heat dissipation effect is improved by fitting the reinforced back plate 1 with the battery assembly to avoid the temperature increase affecting the power generation efficiency of the battery assembly.

[0035] On the basis of the above-mentioned embodiment, in a preferred embodiment, the reinforcing back plate 1 is an aluminum honeycomb panel.

[0036] In this embodiment, the reinforced back plate 1 is made of an aluminum honeycomb panel, which is light in weight and high in strength. It is easy to carry while ensuring the supporting strength. It also has good performance, long service life and good heat dissipation performance.

[0037] As a convertible embodiment, the reinforcing backboard 1 may be a glass fiber honeycomb board. The reinforcing backboard 1 is made of a glass fiber honeycomb board, which is heavy and high in strength, easy to carry while ensuring the supporting strength, and has the advantages of low odor, low volatility, moisture resistance, mildew resistance, and recyclability.

[0038] Specifically, the honeycomb core of the glass fiber honeycomb panel is made of metal material, which is conducive to the heat dissipation of the battery assembly, avoiding the influence of temperature rise on the power generation efficiency of the battery assembly, thereby ensuring the power generation efficiency of the battery assembly.

[0039] Based on the above implementation, in a preferred implementation, Figures 1 to 3As shown, the lightweight photovoltaic system further includes a frame 8 , which covers the periphery of the reinforced back plate 1 and the battery assembly, and a second mounting hole 9 is provided on the frame 8 corresponding to the first mounting hole 2 .

[0040] In this embodiment, the frame 8 is wrapped around the periphery of the reinforced back plate 1 and the battery assembly to increase the supporting strength during installation and prevent burrs or sharp corners generated at the edges of the reinforced back plate 1 during processing and installation to cause harm to people. At the same time, the frame 8 is used to wrap the entire periphery of the reinforced back plate 1 and the battery assembly to firmly fix the battery assembly on the reinforced back plate 1, further improving stability and sealing.

[0041] Specifically, the size of the battery assembly is smaller than the size of the reinforced back plate 1, that is, the projected area of ​​the battery assembly on the reinforced back plate 1 is smaller than the area of ​​the side where the reinforced back plate 1 and the KPF back plate 5 are bonded, which facilitates the opening of the first mounting hole 2 and the second mounting hole 9 on the reinforced back plate 1 and the frame 8 respectively. The first mounting hole 2 and the second mounting hole 9 can be arranged away from the battery assembly, and there is no need to perform hole opening processing on the battery assembly, thereby improving production and assembly efficiency.

[0042] Specifically, a slot adapted to the peripheral side of the combination of the reinforcing back plate 1 and the battery assembly is recessed on the inner side of the frame 8 to facilitate snapping the peripheral edges of the reinforcing back plate 1 and the battery assembly into the slot.

[0043] Specifically, Figures 1 to 4 As shown, the reinforced back plate 1 is square, and the frame 8 includes a straight frame and a U-shaped frame. The straight frame and the open end of the U-shaped frame are detachably connected. The straight frame and the U-shaped frame cooperate to cover the surrounding side of the combination of the reinforced back plate 1 and the battery assembly, which is convenient for disassembly and installation.

[0044] Based on the above implementation, in a preferred implementation, Figure 1 As shown, the KPF back plate 5 is bonded to the surface of the reinforcing back plate 1 by an adhesive.

[0045] In this embodiment, the KPF back plate 5 and the reinforced back plate 1 are connected by an adhesive to improve the overall connection strength, so that the KPF back plate 5 and the reinforced back plate 1 are fully fitted, thereby preventing the battery assembly from being deformed.

[0046] On the basis of the above implementation manner, in a preferred implementation manner, the material of the adhesive is structural sealant, polyurethane sealant, weather-resistant sealant or adhesive film.

[0047] In this embodiment, the material of the adhesive is structural sealant, polyurethane adhesive, weather-resistant sealant or adhesive film, and can be bonded by hot melting or other methods to improve stability.

[0048] Based on the above implementation, in a preferred implementation, Figure 4 As shown, a plurality of wiring holes 10 are provided on the side of the reinforcing back plate 1 facing away from the battery assembly, and the wiring holes 10 are suitable for installing a wiring box 11.

[0049] It should be noted that the junction box 11 is electrically connected to the battery cell 4 .

[0050] In this embodiment, by providing a wiring hole 10 on the reinforced backboard 1, it is convenient to install the junction box 11 on the reinforced backboard 1, and connect the battery cell 4 and the external electrical equipment respectively through the junction box 11, so as to recycle the solar energy collected by the battery cell 4.

[0051] Specifically, the wiring hole 10 is rectangular, the length of the wiring hole 10 is 30mm-100mm, the length of the wiring hole 10 may preferably be 30mm, 70mm or 100mm, etc., the width of the wiring hole 10 is 10mm-50mm, the width of the wiring hole 10 may preferably be 10mm, 26mm or 50mm, etc., and technical personnel in this field may select according to actual needs; in one embodiment, the size of the wiring hole 10 is preferably: length 70mm, width 26mm.

[0052] Specifically, the first mounting hole 2 and the second mounting hole 9 are both rectangular and have the same size. The length of the first mounting hole 2 is 5mm-50mm, and the length of the first mounting hole 2 may preferably be 5mm, 25mm or 50mm, etc. The width of the first mounting hole 2 is 1mm-20mm, and the width of the first mounting hole 2 may preferably be 1mm, 3mm or 20mm, etc., and technicians in this field may choose according to actual needs; in one embodiment, the size of the first mounting hole 2 is preferably: length 25mm, width 3mm.

[0053] Specifically, the hole spacing between the two corresponding first mounting holes 2 of the reinforcing back plate 1 along the width direction is 100mm-180mm, and the hole spacing between the two corresponding first mounting holes 2 of the reinforcing back plate 1 along the length direction is 100mm-300mm. Technical personnel in this field can make a selection according to actual needs.

[0054] Specifically, 2-3 first mounting holes 2 are provided on each side of the periphery of the reinforcing back plate 1, and the vertical distance from the first mounting holes 2 to the side of the reinforcing back plate 1 is 6mm-30mm, so as to avoid that a distance that is too small reduces the connection strength, and a surface distance that is too large affects the installation area of ​​the battery cell 4. Technical personnel in this field can make a choice according to actual needs.

[0055] The working principle of the lightweight photovoltaic system provided in this embodiment is as follows: the transparent front panel 3 is coated with the front face of the battery cell 4 by means of a first adhesive film 6 by means of hot-melt, so as to ensure light transmission while having waterproof and protective properties; the KPF back panel 5 is coated with the back face of the battery cell 4 by means of a second adhesive film 7 by means of hot-melt, so as to play a protective and supporting role; and the KPF back panel 5 can improve the overall heat dissipation, heat resistance, water resistance and weather resistance; the cost of the KPF back panel 5 is relatively low, so as to save costs; in addition, the side of the KPF back panel 5 away from the battery cell 4 is bonded to the surface of the reinforcing back panel 1, and the reinforcing back panel 1 made of aluminum honeycomb panel or glass fiber honeycomb panel is provided. The board 1 improves the supporting strength, is light and has high strength, and prevents the battery assembly from being deformed due to its high flexibility during use, causing hidden cracks in the battery cell, thereby reducing the power generation efficiency and affecting the power supply performance, and improves the tolerance and facilitates transportation. At the same time, the frame 8 is wrapped around the periphery of the reinforced backboard 1, and the first mounting hole 2 on the reinforced backboard 1 and the second mounting hole 9 on the frame 8 are conveniently fixed by means of straps, metal clamps, etc. The fixing method is simple, easy to install and disassemble for secondary movement, and has strong tolerance and long service life. Then, the junction box 11 can be installed through the wiring hole 10, and the external electrical equipment is connected through the junction box 11 for power supply. The technical problem that the existing lightweight photovoltaic components are highly flexible but easy to deform, and are fixed by gluing and cannot be moved secondary is solved.

[0056] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A lightweight photovoltaic system, characterized in that: include: A reinforced back plate (1) is evenly provided with a plurality of first mounting holes (2) for mounting along the periphery; A battery assembly comprises a transparent front plate (3), a battery cell (4) and a KPF back plate (5) which are arranged in sequence, wherein the transparent front plate (3) covers the front surface of the battery cell (4) via a first adhesive film (6), the KPF back plate (5) covers the back surface of the battery cell (4) via a second adhesive film (7), and the side of the KPF back plate (5) away from the battery cell (4) is arranged in contact with the surface of the reinforcing back plate (1).

2. The lightweight photovoltaic system according to claim 1, characterized in that: The reinforced back plate (1) is made of metal.

3. The lightweight photovoltaic system according to claim 2, characterized in that: The reinforced back plate (1) is an aluminum honeycomb plate.

4. The lightweight photovoltaic system according to claim 1, characterized in that: The reinforced back panel (1) is a glass fiber honeycomb panel.

5. The lightweight photovoltaic system according to claim 1, characterized in that: It also comprises a frame (8), the frame (8) covers the periphery of the reinforcing back plate (1) and the battery assembly, and a second mounting hole (9) is provided on the frame (8) corresponding to the first mounting hole (2).

6. The lightweight photovoltaic system according to any one of claims 1 to 5, characterized in that: The KPF back panel (5) is bonded to the surface of the reinforced back panel (1) by means of an adhesive.

7. The lightweight photovoltaic system according to claim 6, characterized in that: The adhesive is made of structural sealant, polyurethane sealant, weather-resistant sealant or adhesive film.

8. The lightweight photovoltaic system according to claim 1, characterized in that: A plurality of wiring holes (10) are provided on a side of the reinforcing back plate (1) facing away from the battery assembly, and the wiring holes (10) are suitable for installing a wiring box (11).

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