阅读说明：本技术 一种光伏发电用主干可旋转树状光伏叶片支撑机构 (Rotatable arborescent photovoltaic blade supporting mechanism of trunk for photovoltaic power generation ) 是由 张�林 赵海港 范德斌 孔惠民 郭子屹 杜中鹏 白鹏尧 李阳 邹庆华 于 2020-06-30 设计创作，主要内容包括：一种光伏发电用主干可旋转树状光伏叶片支撑机构,包含基座、主干、枝干、光伏叶片；所述基座水平安装在地面上,主干通过第一转动副垂直安装在基座上,枝干固定安装在主干上,光伏叶片通过第二运动副与枝干连接；所述第一转动副和第二转动副均为主动副,由伺服电机或者步进电机驱动；第一转动副的回转轴线与水平面垂直,第二转动副的回转轴线与水平面平行；该种光伏发电用主干可旋转树状光伏叶片支撑机构含有的主干数量为1个,安装在主干上的枝干数量不少于2个,每个枝干上安装的光伏叶片数量不少于2个,枝干与主干与光伏叶片构成树状结构。(A rotatable tree-shaped photovoltaic blade supporting mechanism of a trunk for photovoltaic power generation comprises a base, the trunk, branches and photovoltaic blades; the base is horizontally arranged on the ground, the trunk is vertically arranged on the base through a first revolute pair, the branches are fixedly arranged on the trunk, and the photovoltaic blades are connected with the branches through a second kinematic pair; the first rotating pair and the second rotating pair are both driving pairs and are driven by a servo motor or a stepping motor; the rotary axis of the first rotary pair is vertical to the horizontal plane, and the rotary axis of the second rotary pair is parallel to the horizontal plane; this kind of rotatable arborescent photovoltaic blade supporting mechanism of backbone for photovoltaic power generation contains trunk quantity is 1, installs branch quantity on the trunk and is no less than 2, and the photovoltaic blade quantity of installation is no less than 2 on every branch, and branch and trunk and photovoltaic blade constitute tree structure.)

1. A rotatable tree-shaped photovoltaic blade supporting mechanism of a trunk for photovoltaic power generation comprises a base, the trunk, branches and photovoltaic blades; the method is characterized in that: the base is horizontally arranged on the ground, the trunk is vertically arranged on the base through a first revolute pair, the branches are fixedly arranged on the trunk, and the photovoltaic blades are connected with the branches through a second kinematic pair; the first rotating pair and the second rotating pair are both driving pairs and are driven by a servo motor or a stepping motor; the rotary axis of the first rotary pair is vertical to the horizontal plane, and the rotary axis of the second rotary pair is parallel to the horizontal plane; this kind of rotatable arborescent photovoltaic blade supporting mechanism of backbone for photovoltaic power generation contains trunk quantity is 1, installs branch quantity on the trunk and is no less than 2, and the photovoltaic blade quantity of installation is no less than 2 on every branch, and branch and trunk and photovoltaic blade constitute tree structure.

Technical Field

The invention relates to the field of ecological bionic photovoltaic power generation systems, in particular to a tree-shaped photovoltaic blade supporting mechanism with a rotatable main stem for photovoltaic power generation.

Background

Photovoltaic power generation device mainly realizes photoelectric conversion through the photovoltaic board, and the power generation system is incorporated into the power networks in suburb photovoltaic power generation field and rural area commonly, and photovoltaic power generation is applied to road illumination more under the urban environment, and present most photovoltaic power generation device simple structure, photovoltaic board are many to pass through frame construction and install on the coplanar, and area is great relatively, and the appearance is pleasing to the eye, and photoelectric conversion efficiency is low. In order to further expand the applicable scene of photovoltaic power generation and enable the photovoltaic power generation device to have more ornamental value, domestic and foreign companies and organizations have provided an ecological bionic photovoltaic power generation system, the system combines the photovoltaic power generation system with various bionic trees to form a multipurpose power generation device with various functional combinations, and the most representative works are solar trees (eTrees) developed and released by Israel Sologic corporation and photovoltaic trees released by scientific and technological engineering corporation of the eleventh design research institute of electronics in the information industry in China. The solar tree (eTree) is composed of a main trunk, branches and a plurality of photovoltaic blades, can provide power charging, free Wi-Fi and cold water, and the photovoltaic blades are located in different planes, so that the solar tree is high in wind-digging capacity and has high power generation efficiency; the photovoltaic tree mainly comprises a bionic trunk and a large photovoltaic blade array arranged on the crown, the photovoltaic blade array is horizontally arranged, and the photovoltaic tree has a certain difference compared with a solar tree (eTree) in the aspects of wind resistance, attractiveness, photoelectric conversion efficiency and the like although the photovoltaic tree is simple in structure.

Although ecological bionic photovoltaic power generation systems have achieved certain results in recent two years, no matter a solar tree (eTree) or a photovoltaic tree, the spatial pose of blades cannot be adjusted after the system is operated, so that a photovoltaic panel installed on the bionic tree cannot receive sunlight at an optimal angle through posture adjustment, and further optimal power generation efficiency cannot be achieved. In order to improve the photoelectric conversion efficiency, two schemes of photovoltaic day-by-day and photovoltaic blade three-dimensional arrangement can be adopted, namely the photovoltaic blades can be adjusted to face the sunlight through real-time postures day-by-day, so that the photoelectric conversion efficiency can be improved; the photovoltaic blades are arranged in a three-dimensional mode, photoelectric conversion efficiency is improved mainly by increasing the light receiving area of the photovoltaic blades, and occupied area is saved. However, on the premise that the tree-shaped photovoltaic power generation device has a large light receiving area and strong wind resistance, and the photovoltaic blades can be adjusted to face the sun through postures, the tree-shaped photovoltaic power generation device has lower cost and manufacturing cost, and becomes an engineering problem which needs to be solved urgently.

Disclosure of Invention

The invention aims to provide a rotatable tree-shaped photovoltaic blade supporting mechanism of a main stem for photovoltaic power generation based on the modern mechanistic principle, which not only has a tree-shaped appearance and strong wind resistance, but also has lower cost and manufacturing cost, and each photovoltaic blade can be directly opposite to sunlight through posture adjustment.

The invention achieves the above purpose by the following technical scheme:

a rotatable tree-shaped photovoltaic blade supporting mechanism of a trunk for photovoltaic power generation comprises a base, the trunk, branches and photovoltaic blades; the base is horizontally arranged on the ground, the trunk is vertically arranged on the base through a first revolute pair, the branches are fixedly arranged on the trunk, and the photovoltaic blades are connected with the branches through a second kinematic pair; the first rotating pair and the second rotating pair are both active pairs, the trunk can do controlled rotary motion relative to the base under the drive control of control motors such as a servo motor or a stepping motor, the photovoltaic blade can do controlled rotation relative to the branches, and the photovoltaic blade can realize two-degree-of-freedom posture adjustment through the mutual matching of the first rotating pair and the second rotating pair; the rotation axis of the first rotating pair is perpendicular to the horizontal plane, and the rotation axis of the second rotating pair is parallel to the horizontal plane, so that the photovoltaic blade is guaranteed to be changed along with the change of the position angle of the sun through two-degree-of-freedom numerical control adjustment, the sunlight is received at the optimal angle, and the photoelectric conversion efficiency of the tree-shaped photovoltaic blade supporting mechanism with the rotatable main body for photovoltaic power generation is greatly improved. This kind of rotatable arborescent photovoltaic blade supporting mechanism of backbone for photovoltaic power generation contains the backbone quantity be 1, installs branch quantity on the backbone and is no less than 2, and the photovoltaic blade quantity of installing on every branch is no less than 2, and branch and backbone and photovoltaic blade constitute tree structure.

Every photovoltaic blade possesses a degree of freedom relatively to the branch on this kind of rotatable arborescent photovoltaic blade supporting mechanism of backbone for photovoltaic power generation, but under the trunk rotary motion cooperation, photovoltaic blade can realize two degrees of freedom and function day by day. Compare every photovoltaic blade and need the bionical photovoltaic power generation system of ecology of two degrees of freedom and photovoltaic system day by day, reduced drive element quantity by a wide margin, make this kind of photovoltaic power generation have lower cost and cost with rotatable arborescent photovoltaic blade supporting mechanism of trunk, be convenient for popularize and apply on a large scale.

Compared with the prior art, the invention has the outstanding advantages that:

1. compare current photovoltaic power generation device, this kind of rotatable arborescent photovoltaic blade supporting mechanism of backbone for photovoltaic power generation adopts arborescent design, and through the rational design of branch, photovoltaic blade can be three-dimensionally arranged on the branch, compares the mode of photovoltaic blade coplane installation, has improved photovoltaic blade photic area by a wide margin, has less area simultaneously.

2. Compare current bionical photovoltaic power generation system of ecology, rotary motion through the trunk, and the independent adjustment of every photovoltaic blade gesture on the branch, every blade of this kind of rotatable arborescent photovoltaic blade supporting mechanism of trunk for photovoltaic power generation all with the best angle towards the sun, photoelectric conversion efficiency has been improved by a wide margin, simultaneously because trunk and every photovoltaic blade only need one initiative pair, compare every photovoltaic blade and need two initiative pair ecological bionical photovoltaic power generation system, the drive element quantity has been reduced by a wide margin, make this kind of rotatable arborescent photovoltaic blade supporting mechanism of trunk for photovoltaic power generation have lower cost and cost, be convenient for popularize and apply on a large scale.

Drawings

Fig. 1 is a schematic view of a rotatable tree-shaped photovoltaic blade supporting mechanism of a main stem for photovoltaic power generation according to the present invention.

Fig. 2 is a schematic view of a trunk and branches of a rotatable tree-shaped photovoltaic blade supporting mechanism for photovoltaic power generation according to the present invention.

Fig. 3 is a front view of a trunk and a branch of a rotatable tree-shaped photovoltaic blade supporting mechanism for photovoltaic power generation according to the present invention.

Fig. 4 is a top view of a trunk and a branch of the rotatable tree-shaped photovoltaic blade supporting mechanism for photovoltaic power generation of the present invention.

Fig. 5 is a schematic view of the stem of the present invention.

Detailed Description

The technical solution of the present invention is further illustrated by the accompanying drawings and examples.

Referring to fig. 1, 2, 3, 4, and 5, a rotatable tree-shaped photovoltaic blade supporting mechanism for a photovoltaic power generation trunk includes a base 1, a trunk 3, branches 4, and photovoltaic blades 5; the base 1 is horizontally arranged on the ground, the trunk 3 is vertically arranged on the base 1 through the first revolute pair 2, the branches 4 are fixedly arranged on the trunk 3, and the photovoltaic blades 5 are connected with the branches 4 through the second kinematic pair 6; the first rotating pair 2 and the second rotating pair 6 are both active pairs, under the drive control of control motors such as servo motors or stepping motors, the trunk 3 can do controlled rotary motion relative to the base, the photovoltaic blade 5 can do controlled rotation relative to the branches, and the photovoltaic blade 5 can realize two-degree-of-freedom posture adjustment through the mutual matching of the first rotating pair 2 and the second rotating pair 6; the rotation axis of the first rotating pair 2 is perpendicular to the horizontal plane, and the rotation axis of the second rotating pair 6 is parallel to the horizontal plane, so that the photovoltaic blade 5 is guaranteed to be adjusted in a numerical control mode through two degrees of freedom and changed along with the change of the position angle of the sun, the sunlight is received at the best angle, and the photoelectric conversion efficiency of the tree-shaped photovoltaic blade supporting mechanism with the rotatable main body for photovoltaic power generation is greatly improved. This kind of rotatable arborescent photovoltaic blade supporting mechanism of backbone for photovoltaic power generation contains the backbone quantity be 1, installs branch quantity on the backbone and is no less than 2, and the photovoltaic blade quantity of installing on every branch is no less than 2, and branch 4 constitutes arborescent structure with backbone 3 and photovoltaic blade 5.

Every photovoltaic blade 5 possesses a degree of freedom with respect to branch 4 on this kind of rotatable arborescent photovoltaic blade supporting mechanism of backbone for photovoltaic power generation, but under 3 rotary motion cooperations of backbone, photovoltaic blade can realize two degrees of freedom and function day by day. Compare every photovoltaic blade 5 and need the bionical photovoltaic power generation system of ecology of two degrees of freedom and photovoltaic system day by day, reduced drive element quantity by a wide margin, make this kind of photovoltaic power generation have lower cost and cost with rotatable arborescent photovoltaic blade supporting mechanism of trunk, be convenient for popularize and apply on a large scale.