CN218276596U

CN218276596U - Reliable photovoltaic module

Info

Publication number: CN218276596U
Application number: CN202222280799.7U
Authority: CN
Inventors: 薛道荣; 韩成明; 庞爱红
Original assignee: Anhui Daorong New Energy Co ltd; Bengbu Yingli New Energy Technology Co ltd; Beijing Daorong Xinxing Energy Co ltd
Current assignee: Anhui Daorong New Energy Co ltd; Bengbu Yingli New Energy Technology Co ltd; Beijing Daorong Xinxing Energy Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-01-10
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a reliable photovoltaic module, which comprises a frame, a photovoltaic plate and a junction box, wherein the junction box is fixed on the back of the photovoltaic plate, the photovoltaic plate is fixed in the frame, the side surface of the frame is provided with an arc-shaped guide plate, the arc-shaped guide plate and the middle part of the side plate of the frame are both provided with a plurality of ventilation holes, and the ventilation holes are linearly distributed; the photovoltaic panel is sequentially provided with front glass, a plurality of photovoltaic cell pieces distributed in a matrix manner and back glass from top to bottom. Adopt a reliable type photovoltaic module of above-mentioned structure, the side is provided with the arc guide plate, has increased frame intensity, just the arc guide plate with a plurality of ventilation holes have all been seted up at the curb plate middle part of frame, effectively reduce wind load, improve the installation reliability.

Description

Reliable photovoltaic module

Technical Field

The utility model belongs to the technical field of the photovoltaic power generation technique and specifically relates to a reliable type photovoltaic module is related to.

Background

With the rapid development of the solar photovoltaic market, the photovoltaic module technology also tends to mature, but the requirements on high performance and high cost performance are higher and higher. The solar photovoltaic cell module is the most important part of a solar power generation system that converts solar energy into electric energy. The photoelectric conversion efficiency is an important technical index of the solar photovoltaic cell module. Wherein the output power of the solar cell module is reduced by 0.4-0.5% because the temperature is increased by 1 ℃. In three seasons of spring, summer and autumn with good irradiation, the temperature of the battery board can reach more than 80 ℃, the output power is reduced to more than 20%, and meanwhile, the service life of the photovoltaic battery assembly is seriously influenced by overlarge cold and hot temperature difference. The dust accumulation on the surface also causes a large influence on the photovoltaic transmittance, resulting in a decrease in the power generation efficiency. With the increasing installation amount of photovoltaic modules, the load bearing requirements on roofs are also increasing, and therefore, the weight reduction of photovoltaic modules is increasingly required. Meanwhile, the assembly is required to have higher strength and wind resistance under the condition of light weight, and the prior art uses the sectional material as a frame for installation, so that the strength is not high, for example, patent 20212056895.5 discloses that the side wind resistance of the frame of the photovoltaic assembly and the photovoltaic assembly is large, and the installation reliability is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reliable type photovoltaic module, the side is provided with the arc guide plate, has increased frame intensity, just the arc guide plate with a plurality of ventilation holes have all been seted up at the curb plate middle part of frame, effectively reduce wind load, improve the installation reliability.

In order to achieve the purpose, the utility model provides a reliable photovoltaic assembly, which comprises a frame, a photovoltaic panel and a junction box, wherein the junction box is fixed on the back of the photovoltaic panel, the photovoltaic panel is fixed in the frame, an arc-shaped guide plate is arranged on the side surface of the frame, a plurality of ventilation holes are respectively arranged on the arc-shaped guide plate and the middle part of the side plate of the frame, and the ventilation holes are linearly distributed;

the photovoltaic panel is sequentially provided with front glass, a plurality of photovoltaic cell pieces distributed in a matrix manner and back glass from top to bottom.

Preferably, the front glass comprises an outer glass substrate, an EVA adhesive layer and an inner glass substrate which are arranged in sequence from top to bottom,

the thickness of the outer glass substrate is not more than 1.0nm, an upper rough layer is arranged on the outer side of the outer glass substrate, the surface roughness of the upper rough layer is 0.25-1.25 mu m, and an anti-reflection layer is arranged on the inner side of the outer glass substrate;

the thickness of the inner side glass substrate is not more than 1.0nm, the inner side of the inner side glass substrate is provided with a middle infrared reflecting layer, the outer side of the inner side glass substrate is provided with a lower rough layer, and the surface roughness of the lower rough layer is 0.25-1.25 mu m.

Preferably, the frame comprises a side plate, an upper plate, a support plate, a middle plate and a lower plate, the upper plate, the middle plate and the lower plate are sequentially arranged on the inner side of the side plate from top to bottom, the support plate is arranged between the middle plate and the lower plate, an arc-shaped guide plate is arranged on the outer side of the side plate, and two ends of the arc-shaped guide plate are respectively arranged at two ends of the outer side of the side plate.

Preferably, a plurality of strip-shaped grooves which are arranged in parallel are formed in the inner sides of the upper plate and the middle plate, and elastic rubber strips are fixed in the strip-shaped grooves.

Preferably, the lower plate is provided with a plurality of mounting holes which are distributed linearly.

Preferably, a plurality of radiating fins arranged in parallel are arranged on the outer side of the back glass, and the radiating fins are arranged opposite to the gaps between the adjacent rows of photovoltaic cells.

Therefore, the utility model adopts the above structure a reliable type photovoltaic module has following beneficial effect:

(1) Be provided with the arc guide plate in the frame side, increased frame intensity, simultaneously the arc guide plate with a plurality of ventilation holes have all been seted up at the curb plate middle part of frame, effectively reduce wind load, improve the installation reliability.

(2) A plurality of bar grooves that set up side by side are seted up to the inboard of upper plate and medium plate, the bar inslot is fixed with the elasticity adhesive tape, through the fixed photovoltaic board of elasticity adhesive tape, need not glue fixed photovoltaic board, and equipment convenient and fast need not wait for to glue futilely, improves the packaging efficiency.

(3) The outer side of the back glass is provided with a plurality of radiating fins arranged in parallel, so that the radiating performance is improved.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

Fig. 1 is a schematic structural view of a reliable photovoltaic module according to the present invention;

FIG. 2 is a schematic view of the structure of the arc-shaped deflector of the present invention;

fig. 3 is a schematic diagram of the structure of the photovoltaic panel of the present invention;

fig. 4 is a schematic view of the front glass structure of the present invention.

Reference numerals

1. A frame; 11. a side plate; 12. an upper plate; 13. a middle plate; 14. a support plate; 15. a lower plate; 151. mounting holes; 2. an arc-shaped guide plate; 3. a vent hole; 4. a photovoltaic panel; 41. an outer glass substrate; 411. a rough layer is arranged; 412. an anti-reflection layer; 42. an EVA adhesive layer; 43. an inner glass substrate; 431. a mid-infrared reflective layer; 432. a lower rough layer; 44. a photovoltaic cell sheet; 45. back glass; 5. a junction box; 6. a heat dissipating fin; 7. an elastic rubber strip.

Detailed Description

Examples

Fig. 1 is the utility model relates to a reliable type photovoltaic module structure schematic diagram, fig. 2 is the utility model discloses arc guide plate structure schematic diagram, fig. 3 is the utility model discloses photovoltaic plate structure schematic diagram, fig. 4 is the utility model discloses positive glass structure schematic diagram, as shown in fig. 1-4, a reliable type photovoltaic module, including frame 1, photovoltaic board 4 and terminal box 5. The junction box 5 is fixed on the back of the photovoltaic panel 4, the photovoltaic panel 4 is fixed in the frame 1, the frame 1 comprises a side plate 11, an upper plate 12, a support plate 14, a middle plate 13 and a lower plate 15, the upper plate 12, the middle plate 13 and the lower plate 15 are sequentially arranged on the inner side of the side plate 11 from top to bottom, and the support plate 14 is arranged between the middle plate 13 and the lower plate 15, so that the support strength is improved. The outside of curb plate 11 is provided with arc guide plate 2, and arc guide plate 2's both ends set up the both ends in the curb plate 11 outside respectively, and a plurality of ventilation holes 3 have all been seted up at arc guide plate 2 and curb plate 11 middle part, and 3 linear distributions in a plurality of ventilation holes reduce the side windage. A plurality of bar grooves that set up side by side are seted up to the inboard of upper plate 12 and medium plate 13, and bar inslot is fixed with elasticity adhesive tape 7, and photovoltaic board 4 directly sets up the inslot between upper plate 12 and medium plate 13, makes photovoltaic board 4 fixed under the effect of elasticity adhesive tape 7, does not need glue fixed, and the equipment is convenient, and need not wait for the glue to dry. The lower plate 15 is provided with a plurality of mounting holes 151 which are linearly distributed, so that the frame 1 can be conveniently mounted, and the whole weight of the lower plate 15 is reduced.

The photovoltaic panel is sequentially provided with front glass, a plurality of photovoltaic cell pieces 44 distributed in a matrix and back glass 45 from top to bottom, and the front glass, the photovoltaic cell pieces 44 and the back glass 45 are fixedly bonded through an EVA (ethylene vinyl acetate) adhesive layer 42. The front glass comprises an outer glass substrate 41, an EVA adhesive layer 42 and an inner glass substrate 43 which are arranged in sequence from top to bottom. The thickness of the outer glass substrate 41 is 0.5nm, the outer side of the outer glass substrate is provided with the upper rough layer 411, the surface roughness of the upper rough layer 411 is 1 mu m, after the outer surface of the outer glass substrate 41 is roughened, a trap effect can be effectively formed, the solar photovoltaic transmittance is improved, meanwhile, the dust adhesion is reduced, the dust adhered to the surface is easily cleaned, the retention time of the roughened anti-reflection effect of the glass is far longer than the time of coating the outer surface, and the comprehensive advantages are obvious. By improving the transmittance and reducing dust, the power generation efficiency of the photovoltaic module can be effectively improved.

An anti-reflection layer 412 is arranged on the inner side of the outer glass substrate 41, the anti-reflection layer 412 is a titanium-based oxide and silicon-based oxide composite coating, the anti-reflection effect of a solar spectrum of 320nm-1300nm is achieved through the composite coating, meanwhile, the damage of medium and short wave ultraviolet to a battery assembly and an EVA (ethylene vinyl acetate) adhesive film layer is reduced through the absorption effect of the titanium-based oxide on the medium and short wave ultraviolet, and the service life of the assembly is prolonged.

The thickness of the inner glass substrate 43 is 0.5nm, the inner side of the inner glass substrate is provided with a middle infrared reflecting layer 431, the inner surface of the inner glass substrate is coated by adopting a vacuum coating or a chemical method, and the coating material mainly adopts an indium tin oxide coating or a zinc aluminum oxide coating, so that solar spectrums more than 1300nm can be effectively reflected, the absorption of a photovoltaic cell to the solar spectrums ineffective in power generation is effectively reduced, the proportion of converting the solar spectrums into heat energy is further effectively reduced, the temperature of a photovoltaic module is reduced, and the power generation efficiency of the photovoltaic module is improved.

The lower rough layer 432 is arranged on the outer side of the inner glass substrate 43, the surface roughness of the lower rough layer 432 is 1 mu m, a trap effect can be effectively formed, the transmittance of solar photovoltaic is improved, and the power generation efficiency of the photovoltaic module is improved.

A plurality of radiating fins 6 arranged in parallel are arranged on the outer side of the back glass 45, the radiating fins 6 are arranged opposite to the gaps between adjacent rows of photovoltaic cells, the radiating fins 6 further improve the radiating effect, the outer surface of the back glass 45 is subjected to surface roughening treatment to form a rough surface, and the surface roughness is generally 1 μm. After the outer surface of the back plate glass 45 is roughened, a trap effect can be effectively formed, the transmittance of solar photovoltaic is improved, and the power generation efficiency of the photovoltaic module is improved. Meanwhile, the surface roughening can effectively increase the surface area of the glass, effectively improve the emission surface area of the glass, further increase the radiation of the photovoltaic module outwards through radiation, and further reduce the temperature of the photovoltaic module.

Therefore, the utility model adopts the above structure a reliable type photovoltaic module, the side is provided with the arc guide plate, has increased frame intensity, just the arc guide plate with a plurality of ventilation holes have all been seted up at the curb plate middle part of frame, effectively reduce wind load, improve the installation reliability.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.

Claims

1. A reliable type photovoltaic module which characterized in that: the photovoltaic panel is fixed in the frame, an arc-shaped guide plate is arranged on the side face of the frame, a plurality of ventilation holes are formed in the middle parts of the arc-shaped guide plate and the side plate of the frame, and the ventilation holes are linearly distributed;

the photovoltaic panel is sequentially provided with front glass, a plurality of photovoltaic cell pieces distributed in a matrix and back glass from top to bottom.

2. A reliable photovoltaic module according to claim 1, wherein: the front glass comprises an outer glass substrate, an EVA adhesive layer and an inner glass substrate which are sequentially arranged from top to bottom,

3. A reliable photovoltaic module according to claim 1, wherein: the frame comprises side plates, an upper plate, a supporting plate, a middle plate and a lower plate, wherein the upper plate, the middle plate and the lower plate are sequentially arranged on the inner sides of the side plates from top to bottom, the supporting plate is arranged between the middle plate and the lower plate, arc-shaped guide plates are arranged on the outer sides of the side plates, and two ends of each arc-shaped guide plate are respectively arranged at two ends of the outer side of each side plate.

4. A reliable photovoltaic module according to claim 3, wherein: the inner sides of the upper plate and the middle plate are provided with a plurality of strip-shaped grooves which are arranged in parallel, and elastic rubber strips are fixed in the strip-shaped grooves.

5. A reliable photovoltaic module according to claim 3, wherein: the lower plate is provided with a plurality of mounting holes which are distributed linearly.

6. A reliable photovoltaic module according to claim 1, wherein: and a plurality of radiating fins arranged in parallel are arranged on the outer side of the back glass, and the radiating fins are arranged opposite to the gaps of the photovoltaic cells in adjacent rows.