CN205336222U - Ventilation cooling type solar photovoltaic board - Google Patents

Abstract

The utility model discloses a ventilation and heat dissipation solar photovoltaic panel, which comprises two installation brackets with different heights, a support beam and a photovoltaic module; the installation bracket includes a base, and a height-adjustable expansion rod is arranged on the base; A first support rod is hingedly arranged on the telescopic rod; a connecting rod is sleeved on the base on the left side, the lower end of the connecting rod is hingedly fixed on the base, and the upper end of the connecting rod is hingedly provided with a second supporting rod; Photovoltaic module; there is a vent hole between the photovoltaic module and the supporting beam; the photovoltaic module is a film layer, a first ethylene-vinyl acetate copolymer film layer, a battery wafer layer, a second ethylene-acetic acid film layer from top to bottom, respectively. Ethylene copolymer film layer and PCB board; the utility model has high photoelectric conversion efficiency, simple structure, convenient disassembly and adjustment, effective separation and transmission, and has good heat resistance, chemical resistance, electrical insulation performance and toughness.

Description

A ventilation and heat dissipation solar photovoltaic panel

technical field

The utility model relates to a photovoltaic panel, in particular to a ventilation and heat dissipation solar photovoltaic panel.

Background technique

In the 21st century, the problems that threaten human survival and have been recognized by human beings mainly include: global warming, ozone layer destruction, acid rain, fresh water crisis, energy shortage, sharp decline of forest resources, land desertification, accelerated species extinction, and garbage disasters , toxic chemical pollution and many other aspects. The shortage of resources and energy in the world has appeared in most countries and even in the whole world. The emergence of this phenomenon is mainly due to unplanned and unreasonable large-scale mining by human beings. Judging from the current development of oil, coal, water conservancy and nuclear energy, it is very difficult to meet this demand. Therefore, the development and utilization of new energy is imminent.

Among many energy sources, solar energy, as an emerging energy source, has been applied all over the world and is favored by people because of its characteristics of no pollution and low cost. With the widespread use of solar energy, the solar photovoltaic industry is gradually becoming a new sunrise industry. Solar photovoltaic panel assembly is a power generation device that generates direct current when exposed to sunlight. Photovoltaic panel assembly can be made into different shapes, and the components can be connected to each other to generate electricity. Photovoltaic panel components can be installed on the roof or the surface of the building wall to provide lighting for the house and supply power to the grid.

At present, the popular packaging structure of solar cell modules is: tempered glass, solar cells connected by interconnecting strips, and TPT film laminated packaging. The material for photovoltaic conversion in solar cells is generally silicon wafers. However, if silicon wafers are directly exposed to the atmosphere, their photoelectric conversion performance will be attenuated. Therefore, solar cells generally need to be encapsulated with a film layer to protect the silicon wafers.

Utility model content

The purpose of this utility model is to provide a ventilation and heat dissipation solar photovoltaic panel with high photoelectric conversion efficiency, simple structure, convenient disassembly and adjustment, effective separation and transmission, good heat resistance, chemical resistance, electrical insulation performance and toughness , to solve the problems raised in the background art above.

In order to achieve the above object, the utility model provides the following technical solutions:

A ventilation and heat dissipation solar photovoltaic panel, including two installation brackets with different heights, a support beam and a photovoltaic module; the installation bracket includes a base, and a height-adjustable telescopic rod is arranged on the base; Set the first support rod; set the connecting rod on the base on the left side, the lower end of the connecting rod is hinged and fixed on the base, and the upper end of the connecting rod is hinged to set the second supporting rod, wherein the first supporting rod and the second supporting rod The upper ends of each are vertically connected to the support beams; photovoltaic modules are installed on the support beams; ventilation holes are provided between the photovoltaic modules and the support beams; the photovoltaic modules are film layers, the first ethylene-vinyl acetate Copolymer film layer, battery chip layer, second ethylene-vinyl acetate copolymer film layer and PCB board; the film layer is an ethylene-tetrafluoroethylene copolymer film layer; a junction box is provided on the bottom edge of the PCB board, and the wiring The box is electrically connected to the positive and negative outputs of the battery wafer layer, and the battery wafer layer is connected in series by multiple battery unit units, while the battery wafer layer is an N-type solar silicon wafer or a P-type solar silicon wafer, and the battery wafer layer forms a P-N homojunction Or heterojunction planar cell structure.

Further: the height adjustment range of the telescopic pole is 0.1-1 meter.

Further: the ventilation holes are square or circular through holes.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model makes the photovoltaic panel fully irradiated by setting the height of the mounting bracket, so that it can receive solar energy more fully, improve the working efficiency of the solar photovoltaic panel, and produce good economic benefits, and the structure of the mounting bracket is simple. Easy installation, convenient height adjustment;

2. In the utility model, the ventilation hole is good for heat dissipation and prolongs the service life of the photovoltaic module; the film layer is a tough fluoroplastic, which is resistant to radiation while maintaining the good heat resistance, chemical resistance and electrical insulation performance of PTFE. The mechanical properties have been greatly improved, and the tensile strength can reach 50MPa;

3. In the utility model, the photovoltaic module is light, thin and durable. Among them, the battery chip layer effectively prevents the recombination of electrons and holes, which is beneficial to the effective separation and transmission of electron-hole pairs generated by light excitation, and realizes high photoelectric conversion efficiency. And it does not require an electron transport layer and a hole transport layer, effectively avoiding the disadvantages of complex preparation process, unstable performance and expensive price of the hole transport layer; at the same time, photovoltaic modules have good heat resistance, chemical resistance, and electrical insulation properties And toughness, its radiation resistance and mechanical properties have been greatly improved.

Description of drawings

Fig. 1 is a schematic structural diagram of a ventilation and heat dissipation solar photovoltaic panel.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, in the embodiment of the utility model, a kind of ventilated and heat-dissipating solar photovoltaic panel includes two mounting brackets with different heights, a support beam 6 and a photovoltaic module 8; the mounting bracket includes a base 1, a base 1 There is a height-adjustable telescopic rod 2; the height adjustment range of the telescopic rod 2 is 0.1-1 meters, and the first support rod 3 is hinged on the telescopic rod 2; it is socketed on the left base 1 The connecting rod 4, the lower end of the connecting rod 4 is hingedly fixed on the base 1, and the upper end of the connecting rod 4 is hingedly provided with a second support rod 5, wherein the upper ends of the first support rod 3 and the second support rod 5 are vertically connected to the support beam 6; Photovoltaic modules 8 are installed on the support beams 6; during work, by setting the height of the mounting bracket, the photovoltaic panels 8 can be fully irradiated, thereby receiving solar energy more fully, improving the working efficiency of the solar photovoltaic panels 8, and producing good The economic benefits, and the installation bracket structure is simple, easy to disassemble, and the height adjustment is convenient and quick; there is a vent hole 7 between the photovoltaic module 8 and the support beam 6, and the vent hole 7 is a square or circular through hole; during work , the ventilation hole 7 is beneficial to heat dissipation, and prolongs the service life of the photovoltaic module 8; the photovoltaic module 8 is respectively a thin film layer 11, a first ethylene-vinyl acetate copolymer film layer 12, a battery wafer layer 13, a second ethylene -Vinyl acetate copolymer film layer 14 and PCB board 15; Described film layer 11 is ethylene-tetrafluoroethylene copolymer film layer, i.e. ETFE material layer; In work, film layer 11 (ETFE) is strong and tough fluoroplastics, While maintaining the good heat resistance, chemical resistance and electrical insulation properties of PTFE, the radiation resistance and mechanical properties have been greatly improved, and the tensile strength can reach 50MPa; the bottom edge of the PCB board 15 is provided with a junction box , the junction box is electrically connected to the positive and negative outputs of the battery chip layer 13, and the battery chip layer 13 is connected in series by a plurality of battery chip units, and the battery chip layer 13 is an N-type solar silicon chip or a P-type solar silicon chip, and the battery chip layer 13 Form a P-N homojunction or heterojunction planar battery structure; in operation, the photovoltaic module 8 is thin and durable, and the battery wafer layer 13 effectively prevents the recombination of electrons and holes, which is beneficial to the electron-hole pairs generated by light excitation. The effective separation and transmission of the material can achieve high photoelectric conversion efficiency, and it does not require electron transport layer and hole transport layer, effectively avoiding the disadvantages of complex preparation process, unstable performance and expensive price of the hole transport layer; at the same time, photovoltaic modules 8. It has good heat resistance, chemical resistance, electrical insulation and toughness, and its radiation resistance and mechanical properties have been greatly improved.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to be included in the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (3)

1. a ventilation cooling type solar energy photovoltaic panel, including two just different mounting brackets, supports beam (6) and photovoltaic module (8)；It is characterized in that, described mounting bracket includes pedestal (1), and pedestal (1) is provided with height-adjustable expansion link (2)；Described expansion link (2) is above hinged arranges the first support bar (3)；The upper socket of pedestal (1) in left side arranges connecting rod (4), connecting rod (4) lower end is hingeably secured on pedestal (1), connecting rod (4) upper end thereof arranges the second support bar (5), wherein, the first support bar (3), the second support bar (5) upper end all vertically connect support beam (6)；Supporting, beam (6) is provided with photovoltaic module (8)；It is provided with passage (7) between described photovoltaic module (8) and support beam (6)；Described photovoltaic module (8) is from top to bottom thin layer (11), the first ethylene-vinyl acetate copolymer rete (12), battery wafer layer (13), the second ethylene-vinyl acetate copolymer rete (14) and pcb board (15) respectively；Described thin layer (11) is ethylene-tetrafluoroethylene copolymer thin layer；Described pcb board (15) bottom margin is provided with rosette, the both positive and negative polarity output of rosette electrical connection battery wafer layer (13), and battery wafer layer (13) is connected in series by multiple cell piece unit, and battery wafer layer (13) is N-type solar silicon wafers or P type solar silicon wafers, battery wafer layer (13) forms the plane battery structure of P-N homojunction or hetero-junctions。

2. ventilation cooling type solar energy photovoltaic panel according to claim 1, it is characterised in that the height adjustment range of described expansion link (2) is 0.1-1 rice。

3. ventilation cooling type solar energy photovoltaic panel according to claim 1, it is characterised in that described passage (7) is square or manhole。