Horizontal-shaft scale-type dual-shaft dual-linkage tracking bracket device

Abstract

The invention discloses a horizontal-shaft scale-type dual-shaft dual-linkage tracking bracket device. The device comprises multiple sets of horizontal-shaft photovoltaic brackets arranged at intervals in sequence in parallel, wherein multiple sets of photovoltaic modules are arranged on each set of horizontal-shaft photovoltaic brackets; a horizontal swing rod is arranged on a horizontal rotary shaft of each set of horizontal-shaft photovoltaic brackets; each set of horizontal swing rods are connected through a horizontal linkage rod; an electric rotary driving mechanism is fixedly arranged in the middle of the horizontal linkage rod; an output shaft of the electric rotary driving mechanism is connected with the horizontal linkage rod through a horizontal rotary swing rod; each photovoltaic module on each set of horizontal-shaft photovoltaic brackets is fixed on each horizontal rotary shaft; pitching swing rods are fixed on the horizontal rotary shaft and connected to a pitching linkage rod; the pitching linkage rod is connected with a push rod mechanism fixed on the horizontal rotary shaft. The device can be used for tracking sun position change caused by motion of earth relative to sun, and dual-shaft motion of each photovoltaic module is utilized, so that photovoltaic cell panels are guaranteed to be perpendicular to incident rays of the sun and the conversion efficiency of the photovoltaic cell panels is improved.

Description

technical field [0001] The invention belongs to the technical field of solar photovoltaic module brackets, and in particular relates to a flat-axis scale-type dual-axis dual-linkage tracking bracket device. Background technique [0002] Solar photovoltaic power generation devices mainly have two forms: fixed type and tracking type. Since the tracking type can adjust the angle of the photovoltaic panel in real time to make it perpendicular to the direction of light, the photoelectric conversion efficiency of the battery panel is relatively high. In practical applications, the tracking type photovoltaic The power generation device can be divided into two types: biaxial type and single shaft type. [0003] Dual-axis tracking devices have two directions of motion. One of the motions is used to track the change in the solar radiation angle due to the rotation of the earth, and the other motion is used to track the change in the solar radiation angle due to the earth's revolution...

AI Technical Summary

Problems solved by technology

[0005] 1. Ordinary dual-axis tracking system requires two sets of motion mechanisms, which are used to track the change of solar radiation angle every day and track the change of solar radiation angle in different seasons respectively. Therefore, due to the high cost of materials, the installation investment of this device is relatively large.

[0006] 2. The horizontal single-axis tracking device has only one set of motion system, and there is no motion system to track the change of solar declination angle in different seasons. Therefore, in high latitude areas, photovoltaic panels cannot be perpendicular to sunlight, which makes the annual conversion efficiency low.

[0007] 3. In the flat-axis tracking system, each set of tracking brackets has its own set of rotating shaft drive systems, which increases the investment and maintenance costs of photovoltaic power plants

[0008] 4. The oblique single-axis tracking device needs to lift the photovoltaic panel at a certain angle to eliminate part of the change in the latitude angle of the sun. Therefore, when arranging each tracking system, it is necessary to consider the mutual occlusion problem, resulting in the ineffective use of land and the occupied area. bigger

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