Flat single-axis sun tracking bracket device

Abstract

The invention discloses a horizontal single axis sun-tracking support apparatus. The apparatus comprises at least two groups of photovoltaic panel assemblies, wherein the photovoltaic panel assemblies each consist of a photovoltaic panel and a fastener that is used for fixing the photovoltaic panel. The photovoltaic panel assembly is fixed on a drive tube that can drive the photovoltaic panel assembly to rotate. The photovoltaic panel assembly and the drive tube are symmetrically arranged on both sides of a rotary reducer, and the drive tube is connected to an output end of the rotary reducer. The rotary reducer is mounted on a main supporting pillar, and is connected to a motor that supplies a power source to the rotary reducer. An aligning structure with a self-lubricating bearing disposed inside is arranged on the drive tube that is on a side end of each photovoltaic panel assembly away from the rotary reducer. Each aligning structure is correspondingly disposed on a subordinate supporting pillar. The apparatus has the advantages that a ''0'' eccentric design is implemented by adding the aligning structure, so as to achieve a self-balancing effect; functions of autonomous drive and control and self-cleaning and the like are implemented; and no external power supply is required to supply power, so that cables are less used, and the apparatus is applicable to different sizes of photovoltaic power plants.

Description

technical field [0001] The invention relates to the application field of solar photovoltaic power generation, in particular to a flat single-axis solar tracking support device. Background technique [0002] At present, solar grid-connected power generation system has become one of the key areas of national energy conservation and emission reduction. With the increasingly tense photovoltaic power consumption and scarce land resources, photovoltaic power generation companies are required to improve power generation efficiency, and tracking brackets are more effective than fixed brackets. Improve the absorption efficiency of photovoltaic modules to sunlight and improve power generation efficiency. [0003] The existing tracking brackets are divided into single-axis tracking brackets and dual-axis tracking brackets. The dual-axis has rotation axes in two directions, so that the solar panel can track the sun at the same time in the azimuth and altitude angles of the solar energy,...

AI Technical Summary

Problems solved by technology

[0005] One is the single-row independent operation structure. Due to the existence of eccentricity, the single-row installed capacity is small and the required driving torque is relatively large. The size of the scale and the amount of cables increase the construction cost; the cleaning method of this structure still uses manual or regular cleaning of the photovoltaic modules, and it is impossible to do daily cleaning

[0006] One is the multi-row linkage operation structure, which is realized by a driving bracket device and a connecting rod mechanism. The transmission shaft between the rows and the main beam is rigidly connected, and the reliability is poor; when the wind speed is high, the load is all concentrated At the joint of the force arm, it is easy to cause stress concentration, resulting in plastic deformation of the force arm, or even fracture, and poor stability; at the same time, this structure also uses an external power supply, regardless of the size of the power station, the amount of cables increases the construction cost

This structure is not easy to clean the photovoltaic modules, and the drive shaft between the rows blocks the one-way cleaning distance, which increases the cleaning time no matter whether it is manual or equipment

[0007] At the same time, these two systems generally use an external control system. The wiring harness will be aged and damaged if exposed to sunlight for a long time, and cannot meet the 25-year use requirements.

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