TWI384633B - Low - light - generating solar energy installations - Google Patents

Description

Low illumination power generation solar installation

The invention relates to a solar panel, in particular to a low-illumination power generation solar device, which can enable the solar panel to perform a power generation function under low illumination conditions.

Due to the rise of environmental awareness and the gradual depletion of other fuels, the application of solar energy as clean and renewable energy has received increasing attention. Compared with other energy sources, solar energy is an inexhaustible natural energy source. In addition to reducing doubts about energy exhaustion, it can also avoid the problem of energy monopoly and competition.

Solar panels are generally composed of small units of solar cells, which in turn can be called photovoltaic cells. Generally, solar cells are designed using the unique conductive properties of semiconductor germanium materials, and solar cells are subjected to solar cells. After the light is irradiated, the electron holes in the semiconductor will move up and down due to the characteristics of the diode, thereby generating current and voltage to achieve the effect of solar power generation.

Since solar cells use solar energy to generate electricity, the generation of solar cells can only be carried out in the presence of sunlight. Since solar cells produce different energy responses for different wavelengths of light, and the intensity of the light has a great influence on the power generation efficiency of the solar cells, the light intensity must be greater than a power generation threshold to enable the solar panels to generate power, so that the solar panels are low. In the low light state of illuminance, such as in the morning, at dusk, or indoors, the power generation function cannot be fully utilized.

In view of the problem that the conventional solar panel cannot exhibit the power generation function under low illumination, it is an object of the present invention to provide a low-illumination power generation solar device that can fully utilize the power generation function of the solar panel under low illumination.

In order to achieve the above object, the low-illumination power generation solar energy device of the present invention comprises: a solar panel comprising a plurality of solar cells; and a microlens layer disposed on the light receiving surface of the solar panel, the microlens layer The system comprises a plurality of condensable microlenses to form a microlens array.

A light transmissive layer may also be disposed between the solar panel and the microlens layer.

Preferably, the microlens layer is integrally formed.

Preferably, the microlenses on the microlens layer are arranged in a square shape.

Specific achievable effects of the present invention include: 1. The invention improves the light intensity of the solar cell by providing a condensable microlens layer on the solar panel, so that the light intensity can reach the power generation threshold of the solar cell even under the low light and low light. Therefore, the power generation function of the solar panel can be fully utilized, and electric power can be generated even in the morning, at dusk, or indoors.

2. The microlens layer of the invention is integrally formed, so that it can be conveniently disposed on the solar panel, and each microlens can be directly positioned on the solar panel, thereby avoiding the trouble of arranging the microlenses individually, and reducing the manufacturing cost and time of the invention.

3. In the present invention, since the power generation function of the solar panel can be fully utilized, the application range of the present invention can be expanded, and the promotion and utilization of solar energy can be facilitated.

Referring to the first embodiment, a preferred embodiment of the present invention includes a solar panel (10) and a microlens layer (20) disposed on the solar panel (10), wherein the solar panel (10) includes There are a plurality of solar cells, each of which can be soldered to a wire, and then the solar cells of each of the wires are connected in series, and then stacked with a polymer protective layer and a low-iron tempered glass layer, and placed in a laminating machine. The solar panel (10) can be fabricated by vacuum packaging, and the microlens layer (20) is disposed on the light receiving surface of the solar panel (10), and includes a plurality of micros The lens (21) forms a microlens array, and the concentrating property of the microlens (21) itself can increase the light intensity, and the light intensity irradiated to the solar cell can cross the power generation light threshold to make the solar panel (10) In the case of low illumination, such as early morning, dusk or indoor light is weak, electricity can also be generated to generate electricity. In the preferred embodiment, the microlens layer (20) is integrally formed, so that it can be conveniently disposed on the solar panel (10) without separately arranging the respective microlenses (21), thereby reducing the preferred implementation of the present invention. The troubles in manufacturing. The microlenses (21) on the microlens layer (20) are arranged in a square shape, and the transverse and longitudinal lines of the center of each microlens (21) are perpendicular to each other, and a gap is provided between the microlenses (21).

Referring to the second and third figures, another preferred embodiment of the present invention is characterized in that the solar panel (10) is provided with a permeable layer (30) on the light receiving surface to reduce the external force of the solar panel (10). The fragmentation occurs, and the solar panel can also directly attach the microlens layer (20) over the permeable layer (30) to achieve the same effect.

The preferred embodiment of the present invention can fully utilize the power generation function of the solar panel, thereby expanding the application range of the solar panel, increasing power production, and contributing to the promotion and utilization of solar energy.

(10). . . Solar panels

(20). . . Microlens layer

(twenty one). . . Microlens

(30). . . Light transmissive layer

The first figure is a schematic view of a preferred embodiment of the invention.

The second drawing is a schematic view of another preferred embodiment of the present invention.

The third figure is a schematic cross-sectional view of another preferred embodiment of the present invention.

(10). . . Solar panels

(20). . . Microlens layer

(twenty one). . . Microlens

Claims (6)

A low-illumination power generation solar energy device comprising: a solar panel comprising a plurality of solar cells; and a microlens layer disposed on a light receiving surface of the solar panel, the microlens layer comprising a plurality of The concentrating microlens forms a microlens array, so that the intensity of the light irradiated to the solar cell can cross the threshold of the power generation light, so that the solar panel can generate electricity by generating electricity under low illumination. The low-illumination power generation solar energy device of claim 1, wherein a light transmissive layer is disposed between the solar panel and the microlens layer. The low-light power generation solar device according to claim 2, wherein the microlenses on the microlens layer are arranged in a square shape. The low-light power generation solar device according to claim 3, wherein the microlens layer is integrally formed. The low-light power generation solar device according to claim 1, wherein the microlenses on the microlens layer are arranged in a square shape. The low-light power generation solar device according to claim 1 or 2, wherein the microlens layer is integrally formed.