Solar energy utilization apparatus and combined structure thereof

A solar energy utilization apparatus, comprising a light energy utilization unit and a liquid light-condensing lens,

• wherein, the liquid light-condensing lens comprises:
• a transparent top cover being integrally recessed inward to form a first transparent part, and a middle area of the first transparent part protrudes upwards to form a second transparent part, and
• a reflection groove forming a chamber together with the transparent top cover, the chamber forming at least one liquid light-condensing cavity therein filled with a transparent liquid, the reflection groove having a reflecting surface facing towards the transparent top cover to reflect sunlight;
• the light energy utilization unit has a light energy utilization part capable of receiving, converting and utilizing sunlight, and is arranged inside the liquid light-condensing cavity, outside the liquid light-condensing cavity or formed as a wall of the liquid light-condensing cavity to receive and utilize the sunlight;
• the transparent top cover is made of a transparent material capable of refracting sunlight from outside to inside the liquid light-condensing cavity, and the liquid light-condensing cavity forms a structure capable of allowing at least a part of the sunlight that is emitted from the transparent liquid to an inner wall of the liquid light-condensing cavity to form a total reflection phenomenon so as to concentrate the sunlight onto the light energy utilization part;
• wherein the transparent top cover and the reflection groove are arranged in a barrel-shaped structure around a vertical centerline of the second transparent part;
• and
• wherein the transparent top cover is roughly W-shaped in a vertical cross-section of the transparent top cover and the reflection groove, a middle convex region of the W-shaped corresponds to the second transparent part, and regions of both sides of the second transparent part correspond to the first transparent part.