CN107785450A - A photovoltaic module, photovoltaic tile and building roof photovoltaic system - Google Patents

Abstract

The invention discloses a photovoltaic module, a photovoltaic tile and a building roof photovoltaic system. The photovoltaic tile includes the tile base, be provided with flange, lower flange on the tile base and set up the positioning groove between last flange and the lower flange, go up flange and lower flange parallel arrangement, support piece's horizontal support portion and positioning groove tank bottom fixed connection, photovoltaic module's both ends butt is between last flange and lower flange. According to the invention, the crystalline silicon battery piece, the toughened glass and the aluminum back plate are integrally arranged, and the aluminum back plate is used for heat dissipation, so that the heat dissipation efficiency is improved. The photovoltaic tile is provided with the air flowing cavity, so that the ventilation and heat dissipation effect of the photovoltaic tile is higher than that of a common photovoltaic tile, the power generation efficiency of the photovoltaic tile is improved, the overall temperature of a roof is reduced, and the utilization rate of an air conditioner in summer is reduced.

Description

A photovoltaic module, photovoltaic tile and building roof photovoltaic system

technical field

The invention belongs to the technical field of solar energy, and in particular relates to a photovoltaic module, a photovoltaic tile and a building roof photovoltaic system.

Background technique

As a low-carbon renewable energy source, the solar energy industry is booming around the world, and the installations in various countries are increasing year by year. Due to its flexible installation and other characteristics, distributed photovoltaics have developed rapidly in recent years. In the current residential distributed system, it is often used to install solar panel brackets and solar panels on the existing roof for distributed power generation, which not only affects the aesthetics of the building, but also increases unnecessary resources such as brackets. waste.

At the same time, there are BIPV tiles currently on the market, such as the patent document CN 201722851U which discloses a new type of photovoltaic tile that can effectively dissipate heat. In the plane of the depression, crystalline silicon solar cells are installed; on the plane of the depression, there are many ventilation holes, which will provide effective heat dissipation for the photovoltaic module; on the back of the plane part, there are junction box grooves and wire grooves arranged vertically There are threading holes on the thread guide. This photovoltaic tile product has many deficiencies, such as the direct connection between the tile and the battery, which makes the temperature too high under working conditions and the power generation is low; at the same time, when the heat is dissipated through the heat dissipation holes on the ceramic base, the waterproof performance cannot be guaranteed. And glue joints will be accelerated aging by direct sunlight.

Analyzing these phenomena, it is very meaningful to propose a new type of solar building-integrated tile that accelerates heat dissipation while ensuring its waterproof performance, which can accelerate the application and development of clean energy in the field of building and home furnishing.

Contents of the invention

In order to solve the above problems, the present invention provides a photovoltaic module to improve the heat dissipation performance of the photovoltaic module.

The technical solution of the present invention is: a photovoltaic module, comprising a pressed glass plate, a cell sheet and a back plate, and a plurality of cooling ribs are arranged on the back plate.

In the present invention, the heat dissipation fins are arranged on the back plate to dissipate heat, and the heat dissipation fins increase the contact area between the photovoltaic module and the air, and improve the heat dissipation efficiency.

There are many ways to arrange the heat dissipation fins in the present invention, preferably, a plurality of heat dissipation fins are arranged in an array.

Preferably, the back plate is further provided with two supports located on both sides of the heat dissipation fins. The supporting member enables a certain cavity area to exist between the heat dissipation fins and the photovoltaic tiles, thereby improving heat dissipation efficiency.

There are various structural forms of the supporting member in the present invention, preferably, the supporting member includes a horizontal supporting part and a vertical connecting part connected with the backboard surface.

Preferably, the backboard is an aluminum backboard, and the glass plate is a coated tempered glass plate. The coated tempered glass plate on the upper surface ensures the strength of the upper surface of the photovoltaic module of the present invention, and improves its ability to resist compression, fire prevention and hail. The role of cost, improving thermal conductivity and heat dissipation performance.

The present invention also provides a photovoltaic tile for installing the above-mentioned photovoltaic module, including a tile base, and the tile base is provided with an upper rib, a lower rib, and an upper rib and a lower rib. The positioning groove between the sides, the upper rib and the lower rib are arranged in parallel, the horizontal support part of the support is fixedly connected with the bottom of the positioning groove, and the two ends of the photovoltaic module are abutted against the upper rib and the lower rib. between the ribs. In the present invention, the bottom of the photovoltaic module is fixedly connected to the bottom of the positioning groove through the horizontal support part, and the upper and lower ends of the photovoltaic module are abutted between the upper rib and the lower rib to realize the fixing of the upper and lower positions of the photovoltaic module. In the present invention, there are many ways to connect the horizontal support part and the positioning groove. For example, it can be fixed by glue. Prevents the penetration of rainwater. There is a certain cavity area between the heat dissipation ribs arranged in the middle of the back plate and the positioning groove, which improves the heat dissipation efficiency.

Preferably, the tile base is also provided with an installation groove for installing the junction box and connecting wires, and the installation groove is located above the upper rib.

Preferably, a locking slot is provided on the tile base, and a locking block is provided at the bottom opposite to the locking slot. The clamping groove on the tile base can be matched with the clamping block on the adjacent tile, and the clamping block on the adjacent tile is overlapped on the clamping groove. Similarly, the clamping block on the opposite side of the clamping groove and the The clamping grooves of another adjacent tile match each other, so the present invention increases the overall waterproof ability by overlapping the left and right sides.

In order to facilitate the installation of the photovoltaic tile of the present invention on the building roof, preferably, the roof of the building is provided with tiles, and the bottom of the tile base is provided with a hanging part matched with the tiles. The hanging part can be set in the shape of a bulge or a rib, and can be hung directly on the tile strip by overlapping. Through the hanging part, the upper edge of the tile base is fixed on the hanging tile bar to prevent the tile base from sliding up and down, and the lower edge can be pressed on the lower photovoltaic tile to prevent rainwater from backwashing.

The present invention also provides a photovoltaic system on a building roof, comprising a water-slip strip arranged on the roof of the building, a tile strip, the above-mentioned photovoltaic tile matched with the tile strip, and the above-mentioned photovoltaic module arranged on the photovoltaic tile.

The power system is connected to the left and right through the junction box. Since the junction box is under the upper battery assembly, the invention ensures that it will not be too much affected by rainwater and ensures the safety of power supply. At the same time, the left and right photovoltaic tiles overlap each other to ensure the waterproof problem in the left and right directions, and the left and right tiles are on the same plane to form a transverse cavity to ensure air circulation and heat dissipation. Waterproof problem.

Compared with the prior art, the beneficial effects of the present invention are reflected in:

(1) The combination of the present invention and building materials significantly reduces the material types and specifications of the photovoltaic installation system and reduces the cost of installation materials.

(2) The present invention adopts the laying mode of traditional tiles, which is simple, easy to operate and fast.

(3) In the present invention, the crystalline silicon cells, the tempered glass and the aluminum back plate are integrated, and the heat dissipation is improved through the aluminum back plate to improve the heat dissipation efficiency.

(4) The air flow cavity is formed on the photovoltaic tile, so that its ventilation and heat dissipation effect is higher than that of ordinary photovoltaic tiles, which improves its power generation efficiency, reduces the overall temperature of the roof, and reduces the use of air conditioners in summer.

(5) The heat dissipation structure of the present invention does not damage the tile base, and the photovoltaic tile of the present invention as a whole is waterproof and has excellent windproof performance.

Description of drawings

Fig. 1 is a schematic structural diagram of a photovoltaic module in the present invention.

Fig. 2 is a schematic structural diagram of a backplane in a photovoltaic module in the present invention.

Fig. 3 is a structural schematic diagram of a tile base in the present invention.

Fig. 4 is a structural schematic diagram of another angle of the tile base in the present invention.

Fig. 5 is a structural schematic diagram of another angle of the tile base in the present invention.

Fig. 6 is a structural schematic diagram of the building roof photovoltaic module system in the present invention.

Fig. 7 is a structural schematic view from another angle of the building roof photovoltaic module system in the present invention.

Detailed ways

Example 1

As shown in FIG. 1 and FIG. 2 , the present embodiment is a photovoltaic module 6 , which includes a pressed glass plate 61 , battery sheets 62 and a back plate 63 , and a plurality of cooling ribs 631 are arranged on the back plate 63 . In this embodiment, the backboard 63 is an aluminum backboard, and the glass plate 61 is a coated tempered glass plate. The coated toughened glass plate on the upper surface ensures the strength of the upper surface of the photovoltaic module 6 of this embodiment, improves its compression resistance, fire resistance and anti-hail ability, and the aluminum back plate replaces the existing conventional glass or polymer material back plate, which plays a role Reduce material costs, improve thermal conductivity and heat dissipation performance.

In this embodiment, the heat dissipation fins 631 are arranged on the back plate 63 to dissipate heat. The heat dissipation fins 631 increase the contact area between the photovoltaic module 6 and the air, and improve the heat dissipation efficiency. There are many ways to arrange the heat dissipation fins 31 in this embodiment, for example, a plurality of heat dissipation fins 31 may be arranged in an array.

As shown in FIG. 1 and FIG. 2 , two support members 632 located on both sides of the heat dissipation fin 631 are also arranged on the back plate 63 . The support member 632 enables a certain cavity area to exist between the heat dissipation fins and the photovoltaic tiles, thereby improving heat dissipation efficiency. There are various structural forms of the support member 632 in this embodiment. For example, the support member 632 includes a horizontal support portion 633 and a vertical connection portion 634 connected to the backplane.

Example 2

As shown in Figures 3 to 5, this embodiment is a photovoltaic tile for installing the above-mentioned photovoltaic module 6, including a tile base 3, and the tile base 3 is provided with an upper retaining edge 31, a lower retaining Side 32 and the positioning groove 33 opened between the upper rib 31 and the lower rib 32, the upper rib 31 and the lower rib 32 are arranged in parallel, and the horizontal support portion 633 of the support member 632 is fixed to the bottom of the positioning groove 33 connected, the two ends of the photovoltaic module 6 abut between the upper rib 31 and the lower rib 32 . In this embodiment, the bottom of the photovoltaic module 6 is fixedly connected to the bottom of the positioning groove 33 through the horizontal support part 633, and the upper and lower ends of the photovoltaic module 6 are abutted between the upper rib 31 and the lower rib 32 to realize the alignment of the photovoltaic module 6. The fixing of the upper and lower positions of the component 6. In this embodiment, there are many ways to connect the horizontal support portion 633 and the positioning groove 33. For example, it can be fixed by glue. The rib 31 also prevents the penetration of rainwater. There is a certain cavity area between the heat dissipation ribs 631 arranged in the middle of the back plate and the positioning groove 33, which improves the heat dissipation efficiency.

As shown in FIG. 3 and FIG. 4 , in this embodiment, the tile base 3 is also provided with an installation groove 34 for installing a junction box and connecting wires, and the installation groove 34 is located above the upper rib 31 . A locking slot 35 is also provided on the tile base 3 , and a locking block (not shown in the figure) is provided at the bottom opposite to the locking slot 35 . The clamping groove 35 on the tile base 3 can be matched with the clamping block on the adjacent tile, and the clamping block on the adjacent tile overlaps the clamping groove 35, similarly, it is located on the opposite side of the clamping groove 35 The clamping block of the tile is matched with the clamping slot 35 of another adjacent tile, so in this embodiment, the overall waterproof capability is increased through the way of left and right overlapping.

In order to facilitate the installation of the photovoltaic tile of this embodiment on the building roof, for example, a tile bar 2 may be provided on the building roof, and a hanging part 36 matching with the tile bar 2 is provided at the bottom of the tile base 3 . The hanging part 36 can be set in a shape such as a bulge or a rib, and can be hung directly on the tile strip by overlapping. The upper edge of the tile base 3 is fixed on the tile bar through the hanging part to prevent the tile base 3 from sliding up and down, and the lower edge can be pressed on the lower photovoltaic tile to prevent rainwater from backwashing.

Example 3

As shown in Figure 6 and Figure 7, this embodiment is a photovoltaic module system on the roof of a building, including a water-slip strip 1 installed on the roof of the building, a tile strip 2, photovoltaic tiles matched with the tile strip 2, and photovoltaic tiles arranged on the photovoltaic The photovoltaic module on the tile, the photovoltaic tile in this embodiment is the photovoltaic tile in embodiment 2, and the photovoltaic module is the photovoltaic module in embodiment 1.

In this embodiment, the power system is connected to the left and right through the junction box. Since the junction box is below the upper battery assembly, this embodiment ensures that it will not be too much affected by rainwater and ensures the safety of power supply. At the same time, the left and right photovoltaic tiles overlap each other to ensure the waterproof problem in the left and right directions, and the left and right tiles are on the same plane to form a transverse cavity to ensure air circulation and heat dissipation. Waterproof problem.

Claims (10)

1. a kind of photovoltaic module, including glass plate, battery lamella and the backboard that compacting is integrated, it is characterised in that the back of the body Multiple radiated ribs are provided with plate.

2. photovoltaic module as claimed in claim 1, it is characterised in that multiple radiated ribs are arranged in array format.

3. photovoltaic module as claimed in claim 1 or 2, it is characterised in that be additionally provided with the backboard positioned at radiated rib Two support members of both sides.

4. photovoltaic module as claimed in claim 3, it is characterised in that the support member includes horizontal supporting portion and and backboard The vertical connecting portion of plate face connection.

5. photovoltaic module as claimed in claim 4, it is characterised in that the backboard is aluminum backboard, and the glass plate is plating Film armorplate glass.

6. a kind of photovoltaic tiles for being used to install photovoltaic module as claimed in claim 5, including tile pedestal, its feature exist In, rib, lower stop edge and the detent being opened between rib and lower stop edge are provided with the tile pedestal, on Rib and lower stop edge parallel arrangement, the horizontal supporting portion of the support member are fixedly connected with detent bottom land, the photovoltaic group The both ends of part are connected between rib and lower stop edge.

7. described photovoltaic tiles as claimed in claim 6, it is characterised in that the tile pedestal is additionally provided with for installing Terminal box and the mounting groove of connecting line winding displacement, the mounting groove are located at the top of upper rib.

8. described photovoltaic tiles as claimed in claims 6 or 7, it is characterised in that be provided with clamping on the tile pedestal Groove, the bottom of buckling groove opposite side is provided with fixture block.

9. described photovoltaic tiles as claimed in claim 8, it is characterised in that tile batten is provided with the building roof, The bottom of the tile pedestal be provided be engaged with tile batten hang portion.

10. a kind of building roof photovoltaic system, it is characterised in that counter battens, tile batten and extension including being arranged at building roof In photovoltaic tiles as described in right wants 6~9 any that watt bar is engaged and photovoltaic tiles as described in being arranged at as right will Seek 1~5 any described photovoltaic module.