CN103233560A - Photovoltaic device integrated with building guardrail - Google Patents

Abstract

The invention belongs to the technical field of photovoltaic products and particularly relates to an integrated photovoltaic device integrated with building guardrail. The device comprises a building guardrail assembly, a photovoltaic module mounted on the building guardrail assembly and an inversion/charging and discharging control system which is connected with the photovoltaic module. The building guardrail assembly comprises a mounting bracket and a handrail. The photovoltaic module comprises a solar cell arranged in a lamination mode, bonding layers arranged on two sides of the solar cell, a tempered glass protective layer and a packaging adhesive, wherein the packaging adhesive is used for sealing edges of the solar cell, the bonding layers and the tempered glass protective layer. A junction box is connected onto the photovoltaic module. A photovoltaic power generation control system comprises a micro inverter, a controller and a storage battery which are sequentially connected with the photovoltaic module. The photovoltaic device is integrated with the original guardrail, so that design and mounting costs are reduced, besides, the consumption of conventional energy resources is reduced greatly, and clean energy can be generated by buildings to meet requirements of the buildings to enable the buildings to be environmentally friendly and energy-saving.

Description

A photovoltaic device integrated with building guardrails

technical field

The invention belongs to the technical field of photovoltaic products, in particular to a photovoltaic device integrated with building guardrails.

Background technique

Photovoltaic technology is a new type of energy-saving means. With its own advantages such as clean energy, environmental friendliness, and national policy support, it is currently widely used in large-scale ground photovoltaic power plants and some rooftop power plants.

The combination of traditional building energy-saving technology and renewable energy building application technology will promote the development of solar power from the decentralized application of remote areas to the unified planning of the overall city.

The main reasons for vigorous research on BIPV are as follows: first, it saves space; second, it can be used spontaneously to reduce building energy consumption; The overall cost of the building; the fourth is that it can supply power to the grid during the peak period of electricity consumption, and solve the contradiction between supply and demand in the peak and valley of the grid; the fifth is to eliminate the air pollution caused by general fossil fuel power generation.

In the current technology, photovoltaic modules are mostly installed on the roof and are designed as a flat structure. This design can effectively absorb solar energy and obtain better photoelectric conversion efficiency. However, it still has the following shortcomings:

(1) It cannot form an integrated design with the original building, which will increase the design and installation cost of the photovoltaic system in the later stage;

(2) The existing building integrated photovoltaic components have a single form and do not conform to modern architectural aesthetics;

(3) Professional system designers are required to pre-design the bracket before installation, and professional equipment, equipment, and personnel are required for installation, and the installation cost is relatively high;

(4) There is some damage to the load-bearing and waterproof structures of the original building during installation;

(5) After installation, the leads have some damage to the overall appearance.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and specifically disclose a photovoltaic device integrated with building guardrails. The photovoltaic device integrated with building guardrails is integrated with the original guardrail, reducing design and installation costs. In addition, the conventional energy consumption of the building is greatly reduced, allowing the building itself to generate clean energy to supply the needs of the building itself, making the building a green and energy-saving building.

In order to achieve the above-mentioned technical purpose, the present invention is realized according to the following technical solutions:

The integrated building guardrail integrated photovoltaic device according to the present invention includes a building guardrail assembly, a photovoltaic assembly installed on the building guardrail assembly, and a photovoltaic power generation control system connected with the photovoltaic assembly, and the building guardrail assembly includes Mounting brackets and handrails fixed on the mounting brackets, the photovoltaic module includes laminated solar cells, an adhesive layer placed on both sides of the solar cell, a protective layer of tempered glass, and a solar cell for sealing, adhesive layer, tempered The sealing glue on the edge of the glass protective layer, the photovoltaic module is electrically connected with a junction box, and the photovoltaic power generation control system includes a micro-inverter, a controller, and a storage battery that are electrically connected to the photovoltaic module in sequence.

As a further improvement of the above technology, the solar cell is a monocrystalline silicon cell or a polycrystalline silicon cell or a colored cell or a double-sided cell or a thin film cell.

In the present invention, the solar cells are arranged in a rectangular array, the arrangement area of the solar cells in the rectangular array accounts for 40%-90% of the total surface area of the photovoltaic module, and the light transmittance is 10%-80%.

In the present invention, the adhesive layer is an EVA adhesive layer or a PVB adhesive layer, and the light transmittance of the EVA adhesive layer or PVB adhesive layer is 80%-98%.

In the present invention, the tempered glass protective layer has a length ranging from 1000 mm to 2000 mm, a width ranging from 500 mm to 1000 mm, and a thickness ranging from 2 mm to 10 mm, which not only ensures the mechanical strength of the photovoltaic structure, but also considers the aesthetics of the guardrail size.

In the present invention, the junction box is installed on the photovoltaic module, and a bypass diode is arranged in the junction box.

In the present invention, the two side surfaces of the photovoltaic module are fixed on the mounting bracket through connecting columns.

In the present invention, the middle part of the mounting bracket is designed to be hollow, which is convenient for wiring.

In addition, the photovoltaic device integrated with building guardrail also includes an environment detector.

Compared with prior art, the beneficial effect of the present invention is:

(1) The installation of the present invention does not need to repeat the design of the mounting bracket of the photovoltaic component, just follow the existing balcony railing installation method; the lead wire is simple, and the lead wire is led to the ground through the hollow mounting bracket and then uniformly routed;

(2) The installation of the photovoltaic modules described in the present invention is carried out simultaneously with the construction of the building, avoiding the problem of repeated construction, and at the same time, it will not cause damage to the structural design of the building itself such as load-bearing and waterproof.

(3) The system of each user unit (balcony) of the photovoltaic module according to the present invention rectifies and inverts the DC output of the system through a micro-inverter. This design can avoid partial occlusion between buildings and ensure that it is not occluded The user's normal power generation status; in addition, the controller controls the charging and discharging of the battery, so that the system can also supply power normally at night.

(4) The invention is also equipped with an environmental detector, which can monitor environmental parameters such as solar illuminance, temperature, humidity, and wind speed in real time.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in detail:

Fig. 1 is a structural schematic diagram of a photovoltaic device integrated with an integrated building guardrail according to the present invention.

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

Fig. 3 is a schematic structural diagram of a photovoltaic power generation control system in the present invention.

Detailed ways

Embodiment one:

As shown in Fig. 1, Fig. 2 and Fig. 3, the photovoltaic device integrated with building guardrails according to the present invention includes building guardrail components, photovoltaic components 3 installed on building guardrail components, and photovoltaic components 3 A connected photovoltaic power generation control system, the building guardrail assembly includes a mounting bracket 1 and a handrail 2 fixed on the mounting bracket 1, the photovoltaic assembly 3 includes a laminated solar cell 31, placed on both sides of the solar cell 31 EVA adhesive layer or PVB adhesive layer 32, tempered glass protective layer 33 and encapsulating glue 34 for sealing solar cell 31, EVA adhesive layer or PVB adhesive layer 32, tempered glass protective layer 33 edges, said photovoltaic module 3 is electrically connected to a junction box 7, and the photovoltaic power generation control system includes a micro-inverter 4, a controller 5, and a storage battery 6 that are electrically connected to the photovoltaic module in sequence.

The above-mentioned photovoltaic modules are installed in a high-rise building. The solar cells 31 are colored crystalline silicon cells of 156mm*156mm. The arrangement of the solar cells 31 is 4 rows and 5 columns. The light transmittance after lamination of the EVA adhesive layer or PVB adhesive layer 32 is greater than 90%, and the size of the tempered glass protective layer 33 is 1300mm*850mm*3.2mm. The setting of the tempered glass protective layer 33 not only ensures The mechanical strength of the photovoltaic module 3 also considers the aesthetics of the guardrail size.

In addition, as shown in Figure 2, the laminated structure of the photovoltaic module 3 is: tempered glass protective layer 33-EVA adhesive layer or PVB adhesive layer 32-solar cell 31-EVA adhesive layer or PVB adhesive layer 32 -Tempered glass protective layer 33, after lamination, encapsulate the peripheral structure of each edge with encapsulation glue 6, and then install the photovoltaic module 3 on the mounting bracket 1 made of aluminum alloy through four connecting columns 8, and the lead wires pass through the mounting bracket The central hole of 1 leads to the underground wiring.

The DC output of the photovoltaic device integrated with building guardrails in the present invention is rectified and inverted through the micro-inverter 4 , and the photovoltaic power generation control system is composed of the controller 5 and the battery 8 to realize the charging and discharging function.

In addition, the photovoltaic device integrated with building guardrails also includes an environmental detector, which can monitor environmental parameters such as solar illuminance, temperature, humidity, and wind speed in real time, and is convenient and reliable to use.

Embodiment two:

This embodiment is basically the same as Embodiment 1, the difference is that in this embodiment, the photovoltaic module is installed in an open balcony, the solar cells 31 are double-sided cells, and the arrangement of the solar cells 31 is 4 rows and 6 columns matrix arrangement, the total area of the solar cells 31 accounts for about 70% of the total area of the photovoltaic module, the light transmittance after lamination of the EVA adhesive layer or PVB adhesive layer 32 is greater than 90%, and the size of the tempered glass protective layer 33 is 1300mm*850mm*3.2mm.

The present invention is not limited to the above-mentioned embodiments, and any changes or modifications to the present invention do not depart from the spirit and scope of the present invention. If these changes and modifications belong to the claims and equivalent technical scope of the present invention, then the present invention also Such modifications and variations are implied.

Claims (10)

1. integrated photovoltaic devices of integrated building guardrail; it is characterized in that: comprise the building fence assembly; be installed in the photovoltaic module on the building fence assembly; and the inversion/charge-discharge control system that is connected with photovoltaic module; described building fence assembly comprises mounting bracket and the handrail that is fixed on the mounting bracket; described photovoltaic module comprises the solar cell that lamination arranges; place the adhesive linkage of solar cell two sides; tempered glass topping and be used for the sealed solar battery; adhesive linkage; the packaging plastic at tempered glass topping edge; be electrically connected with junction box on the described photovoltaic module, described inversion/charge-discharge control system comprises the little inverter that is electrically connected successively with photovoltaic module; controller; battery.

2. the integrated photovoltaic devices of integrated building guardrail according to claim 1, it is characterized in that: described solar cell is monocrystalline silicon battery or polycrystal silicon cell or colored battery or two-sided battery or hull cell.

3. the integrated photovoltaic devices of integrated building guardrail according to claim 1 and 2, it is characterized in that: the rectangular array arrangement of described solar cell, the area of arranging of the solar cell that this rectangular array is arranged accounts for 40%～90% of photovoltaic module total surface area, and light penetration is 10%～80%.

4. the integrated photovoltaic devices of integrated building guardrail according to claim 1, it is characterized in that: described adhesive linkage is EVA adhesive linkage or PVB adhesive linkage.

5. the integrated photovoltaic devices of integrated building guardrail according to claim 4, it is characterized in that: described EVA(PVB) light transmittance of adhesive linkage is 80%～98%.

6. the integrated photovoltaic devices of integrated building guardrail according to claim 1 is characterized in that: the length range of described tempered glass topping is that 1000mm～2000mm, width range are 500mm～1000mm, thickness protection 2mm～10mm.

7. the integrated photovoltaic devices of integrated building guardrail according to claim 1, it is characterized in that: described junction box is installed on the photovoltaic module, is provided with bypass diode in this junction box.

8. the integrated photovoltaic devices of integrated building guardrail according to claim 1, it is characterized in that: the two sides of described photovoltaic module are fixed on the mounting bracket by joint pin.

9. the integrated photovoltaic devices of integrated building guardrail according to claim 1, it is characterized in that: the middle part of described mounting bracket is hollow design.

10. the integrated photovoltaic devices of integrated building guardrail according to claim 1, it is characterized in that: the integrated photovoltaic devices of described integrated building guardrail also comprises the environment measuring instrument.

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