1. Technical Field
The present disclosure relates to a solar cell.
2. Description of Related Art
Currently, converging lenses are employed in solar cells for enhancing optical-electrical converting efficiency. A solar cell typically includes a number of solar chips and a number of converging lenses corresponding to the solar chips. The solar chips are usually arranged in a matrix on a substrate, and each converging lens is aligned with a corresponding solar chip. However, it is difficult to align each converging lens to a corresponding solar chip. If a converging lens is misaligned with the corresponding solar chip, the optical-electrical converting efficiency of the solar chip may be reduced.
Therefore, what is needed is a solar cell addressing the above-mentioned problems.
The components of the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments of the solar cell. Moreover, in the drawings, like reference numerals designate corresponding parts throughout several views.
Referring to
The base 10 defines a receiving space 101 configured for receiving the substrate 20 therein, the substrate 20 is positioned on the bottom surface of the receiving space 101. The base 10 includes a supporting portion 11 formed on the side surface of the receiving space 101. In this embodiment, the receiving space 101 is rectangular, and the supporting portion 11 is formed on opposite side surfaces of the receiving space 101. The supporting portion 11 includes a number of flat parts 111 and a number of concave parts 112 in between the respective flat parts 111. The flat parts 111 are spaced apart by the concave parts 112 and vice versa.
The substrate 20 is configured for fixing the solar chips 30 on the surface thereof. The substrate 20 includes a circuit system therein (not shown). The circuit system is electrically connected to the solar chips 30 for conducting current form the solar chips 30.
The solar chips 30 are configured for optical-electrical converting. The solar chips 30 can be selected from a type of silicon solar chip, dye solar chip, polymer solar chip, or other types. The current converted by the solar chips 30 can be conducted to an electronic device through the circuit of the substrate 20
The light pervious cover 40 includes a plate portion 41, a number of light converging portions 42 arranged on the plate portion 41 and a number of extending portions 43 corresponding to the light converging portions 42. The plate portion 41 includes a first surface 411 and a second surface 412 opposite to the first surface 411. The light converging portions 42 are protruded from the first surface 411, and the light converging portions 42 have convex surfaces for converging light (see
Each light converging portion 42 can be integrated with a corresponding extending portion 43, the integrated light converging portion 42 and the extending portion 43 pass through the plate portion 41 and fixedly connected to the plate portion 41. The light converging portion 42 and the extending portion 43 are comprised of a same transparent material. Alternatively, the plate portion 41, the light converging portion 42, and the extending portion 43 can also be integrated with each other to form the unitary light pervious cover 40, and all made from transparent material. In this embodiment, the plate portion 41, the light converging portion 42, and the extending portion 43 are integrated with each other
In this embodiment, there are three each of the solar chips 30, the light converging portions 42, and the extending portions 43. And the solar cell 100 can be used for providing electrical power for portable electronic devices, such as mobile phones, digital cameras, Global Position System (GPS) devices and so on. The number of the solar chips 30, the light converging portions 42 and the extending portions 43 can be changed according to different situations or circumstances.
Referring to
In use, incidental light passes through the light converging portions 42 and the extruding portions 43 in sequence, and finally projects on the solar chips 30. The incidental light is converged when passing through the light converging portion 42, and most of the incidental light can be projected on the solar chips 30 because of the reflecting films 432. Therefore, the optical-electrical converting efficiency of the solar chips 30 can be enhanced.
It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its material advantages, the examples presented within this document described merely being preferred or exemplary embodiments of the disclosure.
Number | Date | Country | Kind |
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99111306 | Apr 2010 | TW | national |