Sun tracking mechanism

Abstract

A sun tracking mechanism is provided for solar power generation, including a power unit, a linear actuator and at least two universal joints. The sun tracking mechanism outputs an angle of high precision by two axial directions provided from the universal joints, the power unit and the linear actuator. A solar power module disposed on the sun tracking mechanism generates electricity in the best light incident angle. In addition, the linear actuator provides an auxiliary supporting force to improve the wind-resistant capability.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]This invention relates to sun tracking mechanisms, and, more particularly, to a sun tracking mechanism for solar power generation.[0003]2. Description of Related Art[0004]With the rapid development of technology, demands for power grow steadily. Solar power is becoming one of the most indispensable power sources. A modern solar power module has a power conversion efficiency greatly increased. However, the location and light incident angle of the Sun is not always unchangeable. Thus, a sun tracking mechanism to which a solar power module is mounted is evolved from a fixed mode to an adjustable mode. The adjustable sun tracking mechanism employs a motor to adjust a tilted angle or deflected angle of a solar panel. Therefore, the solar panel tracks the Sun constantly, and the solar power module absorbs the sunlight at a best light incident angle and achieve a best power conversion efficiency.[0005]However, the modern adjus...

AI Technical Summary

Benefits of technology

The present invention provides a sun tracking mechanism for solar power generation. Compared to prior art, the mechanism has fewer components, stronger wind-resistant capability, and greater output angles. The joints of multiple degrees of freedom allow the mechanism to act nimbly, achieve higher precision, have a lower manufacturing cost, and allow a solar power module to absorb sunlight at a best light incident angle constantly and have a best solar power generation efficiency. The mechanism also has improved wind-resistant capability and reduces the possibility of deformation. Overall, the sun tracking mechanism has its sun tracking precision been unaffected and a low manufacturing cost.

Problems solved by technology

However, the location and light incident angle of the Sun is not always unchangeable.

However, the modern adjustable sun tracking mechanism is complicated and hard to be assembled, and has a high manufacturing cost.

Further, the whole sun tracking mechanism cannot operate normally if a single component malfunctions.

Because the solar power module board has a large windward surface and the single-axis supporting pole is not robust enough to stabilize the solar power module board, the modern adjustable sun tracking mechanism is easily to shake severely and be deformed when wind blows the windward surface.

Therefore, how to design a sun tracking mechanism for solar power generation that has fewer components, stronger wind-resistant capability, high precision and a low manufacturing cost, and outputs great angles, is one of the most urgent issues in the art.

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