阅读说明：本技术 一种光伏中空玻璃及光伏中空玻璃外窗 (Photovoltaic hollow glass and photovoltaic hollow glass outer window ) 是由 吴祖荣 于 2019-10-13 设计创作，主要内容包括：本发明公开了一种光伏中空玻璃,包括外层玻璃、内层玻璃、间隔框、第一粘结胶、密封胶、第一空腔和光伏发电结构,所述光伏发电结构包括设有凹槽的导热通风框、太阳能电池片、两个设置在凹槽前后两端的密封部、第一风管和第二风管,所述导热通风框具有通风内腔,所述间隔框的上部设有第二通风口,下部第一通风口,所述第一风管的出风口分别穿过密封胶、第一通风口与通风内腔连通,进风口设置在光伏中空玻璃下侧,所述第二风管的进风口分别穿过密封胶、第二通风口与通风内腔连通,出风口设置在光伏中空玻璃上侧,所述太阳能电池片与凹槽的间隙采用绝缘导热胶填塞。本发明结构简单,有效提高了光伏中空玻璃的发电效率和节能性能。(The invention discloses a photovoltaic hollow glass, which comprises an outer layer glass, an inner layer glass, a spacing frame, a first bonding adhesive, a sealant, a first cavity and a photovoltaic power generation structure, the photovoltaic power generation structure comprises a heat conduction ventilation frame provided with a groove, a solar cell, two sealing parts arranged at the front end and the rear end of the groove, a first air pipe and a second air pipe, the heat-conducting ventilating frame is provided with a ventilating inner cavity, the upper part of the spacing frame is provided with a second ventilating opening, the lower part of the spacing frame is provided with a first ventilating opening, the air outlet of the first air pipe is communicated with the ventilation inner cavity through the sealant and the first vent respectively, the air inlet is arranged at the lower side of the photovoltaic hollow glass, the air inlet of the second air pipe penetrates through the sealant and the second ventilation opening to be communicated with the ventilation inner cavity, the air outlet is formed in the upper side of the photovoltaic hollow glass, and the gap between the solar cell and the groove is filled with the insulating heat-conducting glue. The photovoltaic hollow glass is simple in structure, and the power generation efficiency and the energy-saving performance of the photovoltaic hollow glass are effectively improved.)

1. A photovoltaic hollow glass comprises outer glass (6), inner glass (7), a spacing frame (3), first bonding glue (2), a sealant (1) and a first cavity (4), and is characterized in that the photovoltaic hollow glass further comprises at least one photovoltaic power generation structure (5) arranged in the first cavity, the upper surface of the photovoltaic power generation structure (5) is bonded with the outer glass (6) through the first bonding glue (2), the lower surface of the photovoltaic power generation structure is bonded with the inner glass (7) through the first bonding glue (2), the photovoltaic power generation structure comprises a heat conduction ventilating frame (10) provided with a groove (12), solar cell sheets (8) arranged in the groove, two sealing parts (15) arranged at the front end and the rear end of the groove, a first air pipe (17) and a second air pipe (18), the heat conduction ventilating frame (10) is provided with a ventilating inner cavity (16), the upper part of the spacing frame (3) is provided with a second ventilating opening (20) communicated with the ventilating inner cavity, the lower part is equipped with first vent (19) with the inner chamber intercommunication that ventilates, the air outlet of first tuber pipe (17) passes sealed glue, first vent and the inner chamber intercommunication that ventilates respectively, and the air intake setting is at photovoltaic cavity glass downside, the air intake of second tuber pipe (18) passes sealed glue, second vent and the inner chamber intercommunication that ventilates respectively, and the air outlet setting is at photovoltaic cavity glass upside, solar wafer (8) bond on the recess through insulating heat-conducting glue (9), and its left and right sides adopts insulating heat-conducting glue (9) to clog with the clearance of recess.

2. The photovoltaic insulating glass according to claim 1, characterized in that the ventilation lumen (16) comprises a first lumen (13) and two second lumens (14), the second lumens (14) being provided with an insulating material (11).

3. The photovoltaic insulating glass according to claim 1, characterized in that the outer glass (6) is ultra-white glass and the inner glass (7) is white glass.

4. The photovoltaic hollow glass outer window is characterized by comprising the photovoltaic hollow glass and a window sash frame according to any one of claims 1 to 3, wherein the photovoltaic hollow glass is installed on the window sash frame, the window sash frame at least comprises an upper window sash frame (21) and a lower window sash frame (22), an upper ventilation opening (24) is formed in the outer side of the upper window sash frame (21), the inner cavity of the upper window sash frame is communicated with a ventilation inner cavity through a second air pipe, a lower ventilation opening (25) is formed in the outer side of the lower window sash frame (22), and the inner cavity of the lower window sash frame is communicated with the ventilation inner cavity through a first air pipe.

5. The photovoltaic insulated glass external window according to claim 4, characterized in that said upper sash frame (21) further comprises an upper cover plate (23) for opening and closing the upper ventilation opening, said upper sash frame (21) further comprises a lower cover plate (26) for opening and closing the lower ventilation opening.

6. The photovoltaic hollow glass outer window is characterized by comprising the photovoltaic hollow glass, an upper ventilating pipe (27), a lower ventilating pipe (28) and a window sash frame according to any one of claims 1 to 3, wherein the photovoltaic hollow glass is installed on the window sash frame, the window sash frame at least comprises an upper window sash frame (21) and a lower window sash frame (22), an upper ventilation opening (24) is formed in the outer side of the upper window sash frame (21), a lower ventilation opening (25) is formed in the outer side of the lower window sash frame (22), an air inlet of the upper ventilating pipe (27) is communicated with an air outlet of a second air pipe, the air outlet is communicated with the upper ventilation opening, an air outlet of the lower ventilating pipe (28) is communicated with an air inlet of a first air pipe, and the air inlet is communicated with the lower ventilation opening.

Technical Field

The invention relates to the technical field of photovoltaic and hollow glass, in particular to solar photovoltaic hollow glass and a photovoltaic hollow glass outer window.

Background

The solar photovoltaic hollow glass is a product combining hollow glass and a photovoltaic technology, has the advantages of heat insulation and sound insulation of the hollow glass, can provide clean electric power for buildings, and is more and more attracted by people. However, the solar photovoltaic hollow glass in the prior art also has a potential problem that the power generation performance and the heat insulation performance are mutually restricted to a certain extent, a photovoltaic module can generate a large amount of heat in the power generation process, and if the heat cannot be timely discharged, the power generation efficiency of the photovoltaic module and the heat insulation performance of the hollow glass are greatly reduced.

In recent years, with the national emphasis on building energy conservation, the requirements of the relevant energy-saving indexes of hollow glass are further improved, for example, the heat transfer coefficient of a hollow glass window in Zhejiang province, namely residential building energy-saving design standard, is 2.4W/(m)²K), the comprehensive sun-shading coefficient of the outer window is below 0.45, and the heat transfer coefficient of the hollow glass window is 2.2W/(m) as required by the residential building energy-saving design standard of Shanghai city²K), the overall shading coefficient of the external window is below 0.45, so that when the hollow glass is combined with the photovoltaic technology, the energy-saving performance of the hollow glass is considered in addition to the heat dissipation problem of the photovoltaic module.

The invention discloses solar photovoltaic glass with the patent number of 201810160906.8 and the name of 'solar photovoltaic glass', and the solar photovoltaic glass comprises a glass body and a coating layer, wherein the coating layer is wrapped at the top and the bottom of the glass body in a compounding manner, the glass body is bonded with the coating layer through a sealing adhesive layer, the structure of the glass body sequentially comprises an ultra-white toughened glass layer, a toughened double-textured glass layer, a heat dissipation layer, a silicon solar cell panel, a PVB (polyvinyl butyral) intermediate adhesive layer and a toughened glass layer from outside to inside, the heat dissipation layer is of a cavity structure and is formed by fixedly connecting the toughened double-textured glass layer and the silicon solar cell panel through an edge sealing, and heat dissipation holes are formed in the edge sealing.

Although this patent is through setting up the louvre on the banding, the heat that will penetrate into the sunlight heat of coming and silicon solar cell panel production from glass front passes through the louvre and discharges to the atmosphere, reach the radiating purpose of solar cell panel, but because the heat dissipation layer sets up at the solar cell panel upside, and with external intercommunication, in order to prevent the solar cell panel electric leakage, solar cell panel can only adopt prior art upper portion to be equipped with printing opacity glass's photovoltaic module, the sunlight shines on the solar cell piece in the photovoltaic module and need see through the printing opacity glass layer on super white toughened glass layer and the solar cell panel respectively, for ordinary photovoltaic glass, a printing opacity glass layer has more been increased, the sunlight intensity that makes the solar cell piece receive reduces, so that solar cell panel's generating efficiency reduces. In addition, in winter, the heat dissipation layer is easy to dew with the outside, and the outside air enters the heat dissipation layer for a long time, so that dust still exists in the heat dissipation layer after long-term use even if the outside air is filtered before entering the heat dissipation layer, and the power generation efficiency of the solar cell panel is further reduced, and the attractiveness of the photovoltaic hollow glass is affected.

Disclosure of Invention

In order to solve the problems, the invention provides the solar photovoltaic hollow glass and the photovoltaic hollow glass outer window.

Therefore, the invention adopts the following technical scheme: a photovoltaic hollow glass comprises outer glass, inner glass, a spacing frame, first bonding glue, sealing glue and a first cavity, and further comprises at least one photovoltaic power generation structure arranged in the first cavity, wherein the upper surface of the photovoltaic power generation structure is bonded with the outer glass through the first bonding glue, the lower surface of the photovoltaic power generation structure is bonded with the inner glass through the first bonding glue, the photovoltaic power generation structure comprises a heat conduction ventilating frame provided with a groove, a solar cell arranged in the groove, two sealing parts arranged at the front end and the rear end of the groove, a first air pipe and a second air pipe, the heat conduction ventilating frame is provided with a ventilating inner cavity, the upper part of the spacing frame is provided with a second ventilating opening communicated with the ventilating inner cavity, the lower part of the spacing frame is provided with a first ventilating opening communicated with the ventilating inner cavity, and the air outlet of the first air pipe is communicated with the ventilating inner cavity through the sealing glue and the first ventilating opening, the air inlet is arranged at the lower side of the photovoltaic hollow glass, the air inlet of the second air pipe penetrates through the sealant and the second ventilation opening to be communicated with the ventilation inner cavity, the air outlet is arranged at the upper side of the photovoltaic hollow glass, the solar cell piece is bonded on the groove through the insulating heat-conducting glue, and gaps between the left side and the right side of the solar cell piece and the groove are filled with the insulating heat-conducting glue.

Furthermore, the ventilation inner cavity comprises a first inner cavity and two second inner cavities, and heat insulation materials are arranged in the second inner cavities.

Further, the outer layer glass is super white glass, and the inner layer glass is white glass.

The invention also adopts the following technical scheme: the utility model provides a photovoltaic cavity glass exterior window, includes photovoltaic cavity glass and window sash frame, photovoltaic cavity glass installs on the window sash frame, the window sash frame includes upper portion window sash frame and lower part window sash frame at least, the outside of upper portion window sash frame is equipped with the upper portion vent, and its inner chamber passes through the second tuber pipe and ventilates the inner chamber intercommunication, the outside of lower part window sash frame is equipped with the lower part vent, and its inner chamber passes through first tuber pipe and ventilates the inner chamber intercommunication.

Further, the upper sash frame further includes an upper cover plate for opening and closing the upper ventilation opening, and the upper sash frame further includes a lower cover plate for opening and closing the lower ventilation opening.

The invention also adopts the following technical scheme: the utility model provides a photovoltaic cavity glass exterior window, includes photovoltaic cavity glass, upper portion ventilation pipe, lower part ventilation pipe and window fan frame, photovoltaic cavity glass installs on the window fan frame, the window fan frame includes upper portion window fan frame and lower part window fan frame at least, the outside of upper portion window fan frame is equipped with the upper portion vent, the outside of lower part window fan frame is equipped with the lower part vent, the air intake of upper portion ventilation pipe and the air outlet intercommunication of second tuber pipe, air outlet and upper portion vent intercommunication, the air outlet of lower part ventilation pipe and the air intake intercommunication of first tuber pipe, air intake and lower part vent intercommunication.

The invention has the beneficial effects that:

(1) the solar cell is arranged in the density grooves and the ventilation inner cavity is communicated with the outside, so that heat generated during power generation of the solar cell is quickly discharged to the outside of the photovoltaic hollow glass through the ventilation inner cavity in the heat conduction ventilation frame, the temperature of the photovoltaic hollow glass is effectively reduced, and the heat insulation performance and the power generation efficiency of the photovoltaic hollow glass are further improved;

(2) the solar cell is arranged in the groove of the heat-conducting ventilating frame, the sealing parts are arranged at the front end and the rear end of the groove, so that the groove forms a sealed space after the heat-conducting ventilating frame is bonded with the outer-layer glass through the first bonding glue, and when the solar cell is arranged in the sealed groove, high-light-transmission EVA glue is not required to be arranged at the upper side for sealing and bonding the outer-layer glass and the solar cell, so that the application cost of the EVA glue is further reduced, the light transmittance is not reduced due to aging of the EVA glue film when the photovoltaic hollow glass is irradiated by sunlight for a long time, and the illumination intensity on the surface of the solar cell and the power generation efficiency of the photovoltaic hollow glass are effectively improved;

(3) the solar cell is arranged in the sealed groove, and the upper vent and the lower air port are closed when the photovoltaic panel does not generate electricity, so that the ventilation inner cavity forms a sealed air layer, the photovoltaic power generation structure forms a multi-sealed cavity structure, and the heat insulation performance of the photovoltaic glass is further improved.

Drawings

Fig. 1 is a schematic plan structure view of photovoltaic insulating glass.

Fig. 2 is a first side view structural schematic diagram of the photovoltaic hollow glass.

Fig. 3 is a second side view structural schematic diagram of the photovoltaic hollow glass.

Fig. 4 is a schematic structural view of a photovoltaic power generation structure.

Fig. 5 is a schematic view of a first structure of a thermally conductive vent frame.

Fig. 6 is a second structural diagram of the heat-conducting ventilation frame.

Fig. 7 is a schematic three-dimensional structure of a thermally conductive ventilation frame.

Fig. 8 is a schematic three-dimensional arrangement of photovoltaic power generation structures.

Fig. 9 is a schematic three-dimensional structure of the spacer frame.

Fig. 10 is a schematic diagram of a three-dimensional structure of the photovoltaic hollow glass when it is not sealed.

Fig. 11 is a first side view structural diagram of the photovoltaic hollow glass after being sealed.

Fig. 12 is a second side view structural diagram of the photovoltaic hollow glass after being sealed.

Fig. 13 is a schematic view of a first structure of the photovoltaic insulating glass outer window.

Fig. 14 is a second structural schematic view of the photovoltaic insulating glass outer window.

Description of reference numerals: 1-sealant, 2-first adhesive glue, 3-spacing frame, 4-first cavity, 5-photovoltaic power generation structure, 6-outer glass, 7-inner glass, 8-solar cell piece, 9-insulating heat-conducting glue, 10-heat-conducting ventilation frame, 11-heat-insulating material, 12-groove, 13-first inner cavity, 14-second inner cavity, 15-sealing part, 16-ventilation inner cavity, 17-first air pipe, 18-second air pipe, 19-first ventilation opening, 20-second ventilation opening, 21-upper window fan frame, 22-lower window fan frame, 23-upper cover plate, 24-upper ventilation opening, 25-lower ventilation opening, 26-lower cover plate, 27-upper ventilation pipe and 28-lower ventilation pipe.

Detailed Description

The invention is further described with reference to the drawings and the detailed description.

Referring to fig. 1, the embodiment provides a photovoltaic hollow glass, which includes an outer layer glass 6, an inner layer glass 7, a spacer frame 3, a first adhesive 2, a sealant 1 and a first cavity 4, where the outer layer glass 6 is preferably made of ultra-white glass, the inner layer glass may be made of ultra-white glass or ordinary white glass, the upper surface of the spacer frame is bonded to the outer layer glass through the first adhesive 2, the lower surface of the spacer frame is bonded to the inner layer glass through the first adhesive 2, the sealant is filled between the outer layer glass and the edge of the inner layer glass at the outer side of the spacer frame, and the first cavity is formed by enclosing the spacer frame, the outer layer glass, the inner layer glass and the first adhesive together to seal. It should be noted that, the glass main body structure in the photovoltaic hollow glass is the same as that of the hollow glass in the prior art, the first adhesive glue may be butyl glue, the sealant may be polysulfide glue or silicone glue, the spacer frame may be filled with a drying agent, and the first cavity may be an air layer or an inert gas layer.

Referring to fig. 2 to 12, the photovoltaic hollow glass further includes two photovoltaic power generation structures 5 disposed in the first cavity, the upper surface of the photovoltaic power generation structure 5 is bonded to the outer glass 6 through a first bonding adhesive 2 (the upper surface of the photovoltaic power generation structure 5 refers to the upper surface of the heat conduction ventilation frame and the upper surface of the sealing portion), the lower surface is bonded to the inner glass 7 through the first bonding adhesive 2, the photovoltaic power generation structure includes a heat conduction ventilation frame 10 provided with a groove 12, a solar cell sheet 8 disposed in the groove, two sealing portions 15 disposed at the front end and the rear end of the groove, a first air duct 17 and a second air duct 18, the front side and the rear side of the groove are sealed through the sealing portion, and the upper side is bonded and sealed with the outer glass through the upper surfaces of the heat conduction ventilation frame and the sealing portion to form a sealed cavity, so that the solar cell sheet is mounted in the sealed groove to meet the requirements of related, Moisture resistance and the like.

The structure of the heat-conducting ventilation frame 10 and the two sealing parts 15 can be formed by die-casting in an integrated mode, such as aluminum alloy material casting or other heat-conducting insulating materials, or can be formed by processing independently, and can be assembled in engineering.

The heat-conducting ventilation frame 10 is provided with a ventilation inner cavity 16, the ventilation inner cavity 16 is integrally processed when the heat-conducting ventilation frame is manufactured, the upper part of the spacing frame 3 is provided with a second ventilation opening 20 communicated with the ventilation inner cavity, the lower part of the spacing frame is provided with a first ventilation opening 19 communicated with the ventilation inner cavity, an air outlet of the first air pipe 17 is respectively communicated with the ventilation inner cavity by passing through a sealant and the first ventilation opening, the first air pipe 17 can be fixedly arranged in the first ventilation opening or a lower inlet of the ventilation inner cavity by adopting interference fit or bonding glue, an air inlet is arranged at the lower side of the photovoltaic hollow glass, and the air inlet is preferably flush with the lower edge of the outer glass and is communicated with the air outside,

the air inlet of the second air pipe 18 penetrates through the sealant and the second vent hole respectively to be communicated with the ventilation inner cavity, the second air pipe 18 can be fixedly installed in the upper inlet of the second vent hole or the ventilation inner cavity in an interference fit mode or bonded glue bonding mode, the air outlet is formed in the upper side of the photovoltaic hollow glass, and the air outlet is preferably flush with the upper edge of the outer glass and is communicated with air outside the photovoltaic hollow glass.

The solar cell piece 8 is bonded on the groove through the insulating heat-conducting glue 9, gaps between the left side and the right side of the solar cell piece and the groove are filled with the insulating heat-conducting glue 9, and the insulating heat-conducting glue 9 can be made of heat-conducting silicone grease, EVA glue and the like.

In order to effectively reduce the heat generated by photovoltaic power generation from entering the room so as to further improve the energy-saving performance of the photovoltaic hollow glass, the ventilation inner cavity 6 comprises a first inner cavity 13 and two second inner cavities 14, and a heat-insulating material 11 is arranged in each second inner cavity 14.

In order to ensure the ventilation performance of the first air pipe and the second air pipe during sealant installation, a corresponding plug can be installed at an air inlet of the first air pipe before sealant installation so as to prevent part of sealant from entering the first air pipe, a corresponding plug can be installed at an air outlet of the second air pipe before sealant installation so as to prevent part of sealant from entering the second air pipe, and the plugs can be removed after sealant installation.

Referring to fig. 8, in order to effectively reduce heat entering into the room when the photovoltaic power generation structure generates electricity, a gap at the contact position of the heat conduction ventilation frame and the spacing frame is filled with a first adhesive glue, so that heat of the photovoltaic power generation structure is further isolated from entering into the room through the first cavity.

Referring to fig. 13, on the basis of the photovoltaic hollow glass, the embodiment further provides a photovoltaic hollow glass outer window, which includes the photovoltaic hollow glass and the window sash frame, the photovoltaic hollow glass is mounted on the window sash frame, the window sash frame at least includes an upper window sash frame 21 and a lower window sash frame 22, an upper vent 24 is disposed on the outer side of the upper window sash frame 21, the inner cavity of the upper window sash frame is communicated with the ventilation inner cavity through a second air pipe, a lower vent 25 is disposed on the outer side of the lower window sash frame 22, and the inner cavity of the lower window sash frame is communicated with the ventilation inner cavity through a first air pipe.

In order to further improve the energy saving performance of the photovoltaic insulating glass, the upper sash frame 21 further includes an upper cover plate 23 for opening and closing the upper ventilation opening, and the upper sash frame 21 further includes a lower cover plate 26 for opening and closing the lower ventilation opening.

Specifically, when the solar cell does not generate electricity at night, the upper vent and the lower vent are respectively closed to enable the ventilation inner cavity to form a sealed cavity, the more air layers are sealed in the hollow glass structure with the same thickness, the more the heat transfer coefficient is, and based on the principle, the heat transfer coefficient of the photovoltaic hollow glass can be further reduced due to the fact that the sealed groove cavity and the ventilation inner cavity exist in the photovoltaic power generation structure in the embodiment.

Referring to fig. 14, in the above photovoltaic hollow glass external window, the window sash frame is communicated with the ventilation inner cavity to discharge heat generated by solar battery during power generation outdoors, when the ventilation inner cavity is communicated with the outside air, the heat can be partially transferred to indoors through the window sash frame, especially, in the prior art, an aluminum window sash frame with better heat transfer performance is mostly adopted, in order to better improve the energy saving performance of the photovoltaic hollow glass, the embodiment further provides a photovoltaic hollow glass external window, which comprises the above photovoltaic hollow glass, an upper ventilation pipe 27, a lower ventilation pipe 28 and a window sash frame, the photovoltaic hollow glass is installed on the window sash frame, the window sash frame at least comprises an upper window sash frame 21 and a lower window sash frame 22, an upper ventilation opening 24 is arranged on the outer side of the upper window sash frame 21, a lower ventilation opening 25 is arranged on the outer side of the lower window sash frame 22, an air inlet of the upper ventilation pipe 27 is communicated with an air outlet of a second ventilation pipe, the air outlet is communicated with the upper ventilation opening, the air outlet of the lower ventilation pipe 28 is communicated with the air inlet of the first air pipe, the air inlet is communicated with the lower ventilation opening, the ventilation inner cavity is communicated with the outside through installing the corresponding air pipe in the photovoltaic hollow glass outer window, the air pipe can adopt a plastic pipe with better heat insulation performance, the upper ventilation pipe 27 and the lower ventilation pipe 28 are sealed by pipe covers in winter so that the ventilation inner cavity forms a sealed cavity, and the openings are ventilated in other seasons.

In the embodiment, the solar cell is arranged on the heat conduction and ventilation frame which is sealed and has the heat conduction and ventilation functions, so that the heat generated during power generation of the solar cell is quickly discharged to the outer side of the photovoltaic hollow glass through the ventilation inner cavity in the heat conduction and ventilation frame, the temperature of the photovoltaic hollow glass is effectively reduced, and the heat insulation performance and the power generation efficiency of the photovoltaic hollow glass are further improved; meanwhile, when the solar cell does not generate electricity, the upper vent and the lower vent are closed, so that two sealed air layers are formed in the photovoltaic power generation structure, the photovoltaic power generation structure forms a multi-sealed-cavity structure, and the heat insulation performance of the photovoltaic glass is further improved.

The protection scope of the present invention is not limited to the above description, and any other products with the same or similar technical solutions as or to the present invention, regardless of the shape or structure, are within the protection scope of the present invention.