CN220627815U - Light solar panel - Google Patents

Abstract

The utility model relates to the technical field of photovoltaic modules, and discloses a light solar panel which comprises a photovoltaic module, wherein the photovoltaic module comprises a front plate, a battery layer and a back plate which are sequentially stacked, the front plate and the back plate are both of transparent structures, the battery layer comprises a light transmission area and a plurality of power generation areas which are distributed along the plate surface direction of the light solar panel, gaps are arranged among the power generation areas to form the light transmission area, battery strings are arranged in the battery areas, each battery string comprises a double-sided photovoltaic cell, and the battery strings in the power generation areas are electrically connected. The light solar panel provided by the utility model allows light to penetrate, meets the light transmission requirement of the building outer wall, and adopts the double-sided photovoltaic cell to realize double-sided light absorption power generation, thereby greatly improving the power generation efficiency.

Description

Light solar panel

Technical Field

The utility model relates to the technical field of photovoltaic modules, in particular to a light solar panel.

Background

Roof and wall are two main scenes that solar panels are applied in the building field, wherein the solar panels applied to the roof are basically all of a multi-layer glass laminated structure, and the multi-layer glass structure is firm and durable, high in cost and mainly used for newly built buildings, and the glass base components, the metal base components and a small amount of light solar panels are applied to the roof.

At present, a back glue type structure light photovoltaic panel used on a building wall surface is not suitable for buildings with light transmission requirements because of the existence of back glue, and is not suitable for single-sided power generation, and the power generation efficiency is low.

Therefore, a light-weight solar panel is needed to solve the above technical problems.

Disclosure of Invention

Based on the above, the utility model aims to provide a light solar panel which allows light to penetrate, meets the light transmission requirement of the building outer wall, and adopts a double-sided photovoltaic cell to realize double-sided light absorption power generation, thereby greatly improving the power generation efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a light solar panel, including photovoltaic module, photovoltaic module is including front bezel, battery layer and the backplate that stacks gradually the setting, the front bezel with the backplate all sets up to transparent structure, the battery layer includes light transmission district and a plurality of edges the power generation district that light solar panel's face direction was arranged, a plurality of be equipped with the clearance between the power generation district in order to constitute light transmission district, be equipped with the battery cluster in the power generation district, the battery cluster includes two-sided photovoltaic cell piece, a plurality of in the power generation district the battery cluster electricity is connected.

Specifically, be equipped with a plurality of electricity generation district in the battery layer, battery cluster distributes in the electricity generation district, and the clearance between the electricity generation district is as the printing opacity district, because front bezel and backplate are transparent structure, light can pass through printing opacity volt subassembly through front bezel, printing opacity district and backplate. On one hand, light penetrates through the light-weight solar panel to meet the light transmission requirement of the building outer wall; on the other hand, the battery string adopts the double-sided photovoltaic cell, one part of light is directly incident to the front side of the double-sided photovoltaic cell through the front plate, and the other part of light penetrates through the light solar panel and then is diffusely reflected to the back side of the double-sided photovoltaic cell through the wall surface, so that double-sided light absorption power generation is realized, and the power generation efficiency is greatly improved.

As an alternative technical scheme of the light solar panel, a plurality of power generation areas are distributed in a matrix, and gaps are arranged between the power generation areas adjacent in the longitudinal direction and/or the transverse direction.

As an optional technical scheme of the light solar panel, the photovoltaic module further comprises a first adhesive film, wherein the first adhesive film is arranged between the battery layer and the front plate, and the first adhesive film can bond the battery strings with the front plate.

As an optional technical scheme of the light solar panel, the light transmission area is set to be of a hollow structure, the first adhesive film penetrates through the light transmission area, the front plate and the back plate are adhered by the first adhesive film, and the first adhesive film is adhered to the periphery of the battery string.

As an optional technical scheme of the light solar panel, the photovoltaic module further comprises a second adhesive film, wherein the second adhesive film is arranged between the battery layer and the backboard, and the second adhesive film can bond the battery string with the backboard.

As an optional technical scheme of the light solar panel, the light solar panel further comprises a back adhesive structure, the back adhesive structure is wound on the periphery of the back side of the photovoltaic module, and the photovoltaic module is adhered to the building wall through the back adhesive structure.

As an optional technical scheme of the light solar panel, the light solar panel further comprises a frame component, wherein the frame component is arranged on the periphery of the photovoltaic component and is connected with the photovoltaic component, and the frame component is fixedly connected with a building wall body through adhesive glue or fastening screws.

As an optional technical scheme of the light solar panel, the frame component is arranged into a square frame structure matched with the shape of the photovoltaic component, and the frame component is sleeved on the periphery of the photovoltaic component; or alternatively

The frame component comprises two fixed frame strips, wherein the two fixed frame strips are arranged on two side edges of the photovoltaic component, which are oppositely arranged, and the two fixed frame strips are fixedly connected with the photovoltaic component.

As an optional technical scheme of the lightweight solar panel, the lightweight solar panel further comprises a junction box, and the junction box is connected with the battery layer and external equipment through leads;

the frame component is of a hollow structure, the junction box is arranged in a hollow cavity of the frame component, and the lead wire penetrates through the hollow cavity; or alternatively

The frame component is provided with an installation groove with an opening facing the back side, the junction box is installed in the installation groove, and the lead wire penetrates through the installation groove.

As an optional technical scheme of the light solar panel, the front panel is made of transparent polymer material; and/or

The backboard is made of transparent high polymer materials.

The beneficial effects of the utility model are as follows:

the photovoltaic module of the light solar panel comprises a front plate, a battery layer and a back plate, wherein a plurality of power generation areas are arranged in the battery layer, battery strings are distributed in the power generation areas, gaps between the power generation areas are used as light transmission areas, and light can penetrate through the front plate, the light transmission areas and the back plate to pass through the light transmission photovoltaic module due to the fact that the front plate and the back plate are of transparent structures. On one hand, light penetrates through the light-weight solar panel to meet the light transmission requirement of the building outer wall; on the other hand, the battery string adopts the double-sided photovoltaic cell, one part of light is directly incident to the front side of the double-sided photovoltaic cell through the front plate, and the other part of light penetrates through the light solar panel and then is diffusely reflected to the back side of the double-sided photovoltaic cell through the wall surface, so that double-sided light absorption power generation is realized, and the power generation efficiency is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic diagram of a laminated structure of a photovoltaic module according to a first embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a battery layer according to a first embodiment of the present utility model;

fig. 3 is a schematic diagram of a second structure of a battery layer according to the first embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a lightweight solar panel according to an embodiment of the utility model;

fig. 5 is a schematic diagram of a laminated structure of a photovoltaic module according to a second embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a lightweight solar panel according to a third embodiment of the present utility model;

fig. 7 is a schematic structural diagram of a light solar panel according to a third embodiment of the present utility model.

In the figure:

100. a front plate; 200. a battery layer; 201. a power generation zone; 202. a light transmission region; 210. a battery string; 300. a back plate; 400. a first adhesive film; 500. a second adhesive film; 600. a frame assembly; 610. a mounting groove; 700. a junction box; 800. and (5) a lead wire.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

Embodiment one:

as shown in fig. 1-4, the present embodiment provides a lightweight solar panel, particularly for use in exterior walls of buildings. The light solar panel comprises a photovoltaic module, wherein the photovoltaic module comprises a front plate 100, a first adhesive film 400, a battery layer 200, a second adhesive film 500 and a back plate 300 which are sequentially stacked, the front plate 100 and the battery layer 200 are adhered through the first adhesive film 400, and the battery layer 200 and the back plate 300 are adhered through the second adhesive film 500. When installed, front panel 100 is positioned on the side of the lightweight solar panel that is remote from the exterior wall of the building, and back panel 300 is positioned on the side of the lightweight solar panel that is adjacent to the exterior wall of the building.

Further, the front plate 100, the first adhesive film 400, the second adhesive film 500 and the back plate 300 are all provided with transparent structures, the battery layer 200 comprises a light-transmitting area 202 and a plurality of power generation areas 201 distributed along the plate surface direction of the light solar panel, gaps are arranged among the power generation areas 201 to form the light-transmitting area 202, a battery string 210 is arranged in the power generation area 201, the battery string 210 comprises double-sided photovoltaic cells, and the battery strings 210 in the power generation areas 201 are electrically connected.

Specifically, the battery layer 200 of the light solar panel provided in this embodiment is provided with a plurality of power generation areas 201, the battery strings 210 are distributed in the power generation areas 201, gaps between the power generation areas 201 are used as the light transmission areas 202, and light can pass through the photovoltaic module via the front panel 100, the first adhesive film 400, the light transmission areas 202, the second adhesive film 500 and the back panel 300 due to the transparent structures of the front panel 100, the first adhesive film 400, the second adhesive film 500 and the back panel 300. On one hand, light penetrates through the light-weight solar panel to meet the light transmission requirement of the building outer wall; on the other hand, the cell string 210 adopts a double-sided photovoltaic cell, a part of light is directly incident to the front side of the double-sided photovoltaic cell through the front panel 100, and the other part of light penetrates through the light solar panel and is diffusely reflected to the back side of the double-sided photovoltaic cell through the wall surface, so that double-sided light absorption power generation is realized, and the power generation efficiency is greatly improved.

Illustratively, the plurality of power generation regions 201 are distributed in a matrix, as shown in fig. 2, gaps are provided between adjacent power generation regions 201 in the longitudinal direction (vertical direction after installation) and the transverse direction (horizontal direction after installation), and the light transmission regions 202 and the power generation regions 201 are staggered in the longitudinal direction and the transverse direction; in another embodiment, as shown in fig. 3, adjacent power generation areas 201 are connected end to end in the longitudinal direction and are not provided with gaps, and gaps are arranged between adjacent power generation areas 201 in the transverse direction, and light transmission areas 202 and power generation areas 201 are staggered in the transverse direction; in yet another embodiment, adjacent power generation regions 201 are connected end to end in the transverse direction without gaps, and gaps are provided between adjacent power generation regions 201 in the longitudinal direction, and light transmission regions 202 and power generation regions 201 are staggered in the longitudinal direction. In the case that the light-transmitting region 202 and the power-generating region 201 are staggered in the longitudinal direction and the transverse direction, the area of the light-transmitting region 202 can be maximized, so that the light-transmitting amount and the light-absorbing amount of the back side of the bifacial photovoltaic cell can be improved. For the situation that the light-transmitting area 202 and the power generation area 201 are only arranged longitudinally or transversely in a staggered mode, on the premise that light transmission is guaranteed, assembly steps can be simplified, mounting difficulty is reduced, and production efficiency is improved.

As shown in fig. 4, the lightweight solar panel further includes a frame component 600, where the frame component 600 is disposed at an outer peripheral portion of the photovoltaic component and is connected with the photovoltaic component, the frame component 600 is clamped or bonded with the front plate 100 and the back plate 300, the frame component 600 is configured as a square frame structure with a shape matching with that of the photovoltaic component, and the frame component 600 is sleeved at an outer periphery of the photovoltaic component to support the periphery of the photovoltaic component, so that the photovoltaic component is kept in a vertical plane, and the frame component 600 is fixedly connected with a building wall through adhesive or fastening screws. In this embodiment, a plurality of mounting holes are formed in the frame assembly 600, and a plurality of fastening screws penetrate the mounting holes in a one-to-one correspondence manner and are connected with the building wall, so as to realize the mounting and fixing of the light solar panel.

As shown in fig. 4, the lightweight solar panel further includes a junction box 700, the junction box 700 connects the battery layer 200 and the external device through the lead 800, the frame assembly 600 is provided with a mounting groove 610 opened toward the back side, the junction box 700 is mounted in the mounting groove 610, the lead 800 is inserted into the mounting groove 610, and the junction box 700 and the lead 800 are mounted and shielded by the frame assembly 600.

Illustratively, the front panel 100 is made of a transparent polymer material, such as PET (polyester resin) or a PET-containing composite panel.

Illustratively, the back sheet 300 is made of a transparent polymer material, such as PET (Dacron resin) or a PET-containing composite board.

Illustratively, the first and second adhesive films 400 and 500 employ EVA (ethylene-vinyl acetate copolymer) hot melt adhesive, POE (polyethylene octene co-elastomer) adhesive, or PVB (polyvinyl butyral Ding Quanzhi) adhesive.

Illustratively, the bezel assembly 600 is made of a polymeric material, such as epoxy, phenolic, or the like.

Illustratively, the bezel assembly 600 is made of a metal material such as an aluminum alloy.

Embodiment two:

as shown in fig. 5, on the basis of the first embodiment, there is provided another lightweight solar panel, which is different from the first embodiment in that:

the photovoltaic module does not include the second adhesive film 500, that is, no adhesive film structure is separately disposed between the battery layer 200 and the back plate 300, the light-transmitting area 202 of the battery layer 200 is disposed in a hollow structure, the first adhesive film 400 penetrates through the light-transmitting area 202, the front plate 100 and the back plate 300 are adhered by the first adhesive film 400, and the first adhesive film 400 adheres to the periphery of the battery string 210. At the light-transmitting area 202, the front plate 100 and the back plate 300 can be bonded by the first adhesive film 400, and since the bonding area between the front plate 100 and the back plate 300 at two sides of the light-transmitting area 202 is large enough, the first adhesive film 400 can be melted when the photovoltaic module is hot-pressed, and the gaps between adjacent cell strings 210 are permeated to the back plate 300, so that the periphery of the cell string 210 is bonded on the back plate 300 by the first adhesive film 400, even if the second adhesive film 500 is not arranged between the back surface of the cell sheet and the back plate 300, the whole structure can be firmly bonded, the minimum number of packaging layers is realized, and the light solar panel is lighter.

Further, the light solar panel provided in this embodiment is different from the first embodiment in that:

the lightweight solar panel does not include the frame assembly 600, and the lightweight solar panel also includes a gum structure that is wound around the perimeter of the back side of the photovoltaic module, which is adhered to the building wall through the gum structure. The backing adhesive structure preferably adopts butyl adhesive.

The light solar panel provided by the embodiment eliminates the second adhesive film 500 and the frame component 600, has extremely simple structure, reduces weight, can reduce weight to 1.8KG/M2, does not influence the structural load bearing of a building, can realize the installation and transformation of the light solar panel on a storage building, and improves applicability. And the curtain wall glass can be directly attached to the curtain wall glass through the back glue structure, so that the curtain wall glass has high compatibility with curtain walls of different specifications and sizes, and meanwhile, the curtain wall glass can be compatible with hidden frames and frameless curtain walls.

Embodiment III:

as shown in fig. 6 and 7, another lightweight solar panel is provided on the basis of the first embodiment, which is different from the first embodiment in that:

the frame component 600 does not adopt a square frame structure, the frame component 600 comprises two fixed frame strips, the two fixed frame strips are arranged on two side edges of the photovoltaic component, which are oppositely arranged, for example, two lateral side edges are arranged as shown in fig. 6, or two longitudinal side edges are arranged as shown in fig. 7, the two fixed frame strips are fixedly connected with the photovoltaic component, and the light solar panel is connected with the building wall through the fixed frame strips.

The light solar panel changes the structure of two side frames, on one hand, the whole weight can be reduced, on the other hand, the light solar panel can be suitable for the condition that the light solar panel is limited by the existing frame of the curtain wall in one direction (such as the vertical direction), and the size and the position of the non-installation edge are not limited by the existing frame of the curtain wall.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. The utility model provides a light solar panel, its characterized in that, includes photovoltaic module, photovoltaic module is including front bezel (100), battery layer (200) and backplate (300) that stack gradually the setting, front bezel (100) with backplate (300) all set up to transparent structure, battery layer (200) are including printing opacity district (202) and a plurality of edges the power generation district (201) that the face direction of light solar panel was arranged are equipped with the clearance between a plurality of power generation district (201) in order to constitute printing opacity district (202), be equipped with battery cluster (210) in power generation district (201), battery cluster (210) are including two-sided photovoltaic cell piece, a plurality of battery cluster (210) electricity in power generation district (201) are connected.

2. A lightweight solar panel according to claim 1, characterized in that a plurality of said power generation areas (201) are arranged in a matrix, with gaps between longitudinally and/or laterally adjacent power generation areas (201).

3. The lightweight solar panel according to claim 1, characterized in that the photovoltaic module further comprises a first adhesive film (400), the first adhesive film (400) being arranged between the cell layer (200) and the front plate (100), the first adhesive film (400) being capable of adhering the cell string (210) to the front plate (100).

4. A lightweight solar panel according to claim 3, characterized in that the light-transmitting area (202) is provided in a hollow structure, the first adhesive film (400) is disposed through the light-transmitting area (202), the front plate (100) and the back plate (300) are adhered by the first adhesive film (400), and the first adhesive film (400) adheres to the periphery of the battery string (210).

5. The lightweight solar panel of claim 2, wherein the photovoltaic module further comprises a second adhesive film (500), the second adhesive film (500) being disposed between the cell layer (200) and the backsheet (300), the second adhesive film (500) being capable of adhering the cell string (210) to the backsheet (300).

6. The lightweight solar panel of claim 1, further comprising a back-adhesive structure around a perimeter of the back side of the photovoltaic module, the photovoltaic module being adhered to a building wall by the back-adhesive structure.

7. The lightweight solar panel according to claim 1, further comprising a frame assembly (600), wherein the frame assembly (600) is disposed on the outer periphery of the photovoltaic assembly and is connected to the photovoltaic assembly, and the frame assembly (600) is fixedly connected to the building wall through adhesive or fastening screws.

8. The lightweight solar panel according to claim 7, wherein the frame assembly (600) is provided in a square frame structure adapted to the shape of the photovoltaic assembly, and the frame assembly (600) is sleeved on the periphery of the photovoltaic assembly; or alternatively

The frame component (600) comprises two fixed frame strips, wherein the two fixed frame strips are arranged on two side edges of the photovoltaic component, which are oppositely arranged, and the two fixed frame strips are fixedly connected with the photovoltaic component.

9. The lightweight solar panel according to claim 7, further comprising a junction box (700), the junction box (700) connecting the battery layer (200) and an external device by a lead (800);

the frame assembly (600) is of a hollow structure, the junction box (700) is arranged in a hollow cavity of the frame assembly (600), and the lead (800) penetrates through the hollow cavity; or alternatively

The frame assembly (600) is provided with a mounting groove (610) with an opening facing the back side, the junction box (700) is mounted in the mounting groove (610), and the lead (800) penetrates through the mounting groove (610).

10. The lightweight solar panel according to any one of claims 1 to 9, characterized in that the front panel (100) is made of a transparent polymeric material; and/or

The backboard (300) is made of transparent high polymer materials.