CN105743427B - A kind of the solar energy tracking bracket and device of high stability and low driving energy consumption - Google Patents

A kind of the solar energy tracking bracket and device of high stability and low driving energy consumption Download PDF

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Publication number
CN105743427B
CN105743427B CN201610202815.7A CN201610202815A CN105743427B CN 105743427 B CN105743427 B CN 105743427B CN 201610202815 A CN201610202815 A CN 201610202815A CN 105743427 B CN105743427 B CN 105743427B
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layer
crossbeam
tracking
center
bracket
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CN105743427A (en
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许启明
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许启明
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00Supporting structures for PV modules
    • H02S20/30Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The present invention provides the solar energy tracking bracket and device of a kind of high stability and low driving energy consumption, the bracket includes main shaft, upper layer crossbeam, upper and lower level connector, lower layer's crossbeam, stringer, shaft connector composition.Rotation axis passes through bearing mounting hole and bracket is mounted on north and south column or support column.The present invention uses double layer design new method, the center of gravity of Support bracket and photovoltaic module and center of rotation can be completely coincident by the relative position of two interlayers and its at a distance from center of rotation, it does not need to overcome the gravity of tracking bracket during tracking and does work, to reduce tracking energy consumption, reduce tracking operation cost.If the center of gravity of Support bracket and photovoltaic module is slightly less than center of rotation, stability can be effectively increased, is especially off the stability of tracking period.Tracking energy consumption can be reduced, tracking operation cost is reduced, and is conducive to improve weatherliness.

Description

A kind of the solar energy tracking bracket and device of high stability and low driving energy consumption
Technical field
The invention belongs to solar energy power generatings and solar energy heat utilization field, are related to solar energy tracking device, specifically It is related to the solar energy tracking bracket and device of a kind of high stability and low driving energy consumption.
Background technique
In the design of existing solar energy uniaxiality tracking or tracking support with double shafts, the Support bracket of photovoltaic cell component is complete Portion uses single layer designs.And the center of gravity of photovoltaic cell component and its Support bracket is much higher than tracking center of rotation.This single layer The structure of design is simple, and materials are few, and manufacturing cost is low.But since the center of gravity of Support bracket and photovoltaic module is much detached from tracking Center of rotation, driving motor must overcome gravitational moment and moment of friction acting in actual operation, to consume additional electric energy. Secondly, the center of gravity of photovoltaic cell component Support bracket much higher than tracking center of rotation, tracking dwell time inner support bracket and Photovoltaic module is in unstable state, and this unstable state results in driving motor again must provide corresponding torque Support bracket and photovoltaic module and terrestrial gravitation can be made to keep balancing, which again increases additional electric energy losses.Photovoltaic bracket is logical The time limit is often used at 25 years or more, thus increased operating cost is far longer than the disposable production reduced using single layer designs Cost.
Summary of the invention
Based on problems of the prior art, the invention proposes the solar energy of a kind of high stability and low driving energy consumption Tracking bracket and device solve the technical problem that existing solar energy tracking device is unstable and drives energy consumption high.
In order to solve the above-mentioned technical problem, the application, which adopts the following technical scheme that, is achieved:
A kind of solar energy tracking bracket of high stability and low driving energy consumption, including main shaft and multiple yoke crossties, each Yoke crosstie includes upper layer crossbeam and lower layer's crossbeam, and connection is fixed by the connecting rod between upper layer crossbeam and lower layer's crossbeam;
A kind of solar energy tracking device of high stability and low driving energy consumption, including support column and be mounted on by rotation axis Bracket on support column, the bracket include multiple yoke crossties of main shaft sum, each yoke crosstie include upper layer crossbeam and Lower layer's crossbeam is fixed by the connecting rod connection between upper layer crossbeam and lower layer's crossbeam;
The upper layer crossbeam of multiple yoke crossties is fixedly arranged on main shaft, so that the tracking center of rotation of yoke crosstie falls in upper layer Between crossbeam and lower layer's crossbeam;
Rotation axis is fixedly arranged on main shaft, and rotation axis is located at the lower section of main shaft and is arranged in parallel with main shaft.
The present invention also has following distinguishing feature:
Bearing spider is installed, rotation axis is mounted on bearing spider by bearing and can be rotated on the support column.
The length of the upper layer crossbeam is less than the length of lower layer's crossbeam.
The yoke crosstie is left and right axially symmetric structure;The main shaft is fixedly arranged at the symmetrical centre position of upper layer crossbeam It sets.
Lower layer's crossbeam of multiple yoke crossties is fixedly arranged on stringer.
The solar energy tracking device is that single shaft tracking apparatus or double-axis tracking device can in the biggish area of wind-force The center of gravity of bracket is dropped to tracking center of rotation hereinafter, to improve the stability of the bracket, weatherliness is increased.
Compared with prior art, the present invention beneficial has the technical effect that
The present invention uses double layer design new method, by the relative position of two interlayers and its at a distance from tracking center of rotation The center of gravity of Support bracket and photovoltaic module and tracking center of rotation can be completely coincident, not need that tracking is overcome to track in the process The gravity of bracket and photovoltaic module and do work, to reduce tracking energy consumption, reduce tracking operation cost.
If the center of gravity of Support bracket and photovoltaic module is slightly less than and tracks center of rotation, stabilization can be effectively increased Property, especially it is off the stability of tracking period.Tracking energy consumption can be reduced, reduces tracking operation cost, and advantageous In raising weatherliness.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the yoke crosstie of high stability and low driving energy consumption.
Fig. 2 is the structural schematic diagram of the solar energy tracking device of high stability and low driving energy consumption, bright for clarity in figure , yoke crosstie is only depicted in figure, without drawing photovoltaic module.
The meaning of each label in figure are as follows: 1- support column, 2- rotation axis, 3- bracket, 4- yoke crosstie, 5- main shaft, 6- tracking Center of rotation, 7- bearing spider, the upper layer 8- photovoltaic module, 9- lower layer photovoltaic module, 10- lower layer photovoltaic module;(4-1)-upper layer Crossbeam, (4-2)-lower layer crossbeam, (4-3)-connecting rod, (4-4)-stringer, (4-5)-additional reinforcement bar.
Particular content of the invention is described in more detail with reference to embodiments.
Specific embodiment
In compliance with the above technical solution, specific embodiments of the present invention are given below, it should be noted that the present invention not office Be limited to following specific embodiments, for example, the variation of all parts size, the size variation of power, separate unit or multiple linkage, on Layer crossbeam and number, the number of stringer of lower layer's crossbeam etc., all equivalent transformations made on the basis of the technical solutions of the present application is fallen Enter protection scope of the present invention.The present invention is described in further details below with reference to embodiment.
Embodiment 1:
In compliance with the above technical solution, as shown in Figure 1.The present embodiment provides the sun of a kind of high stability and low driving energy consumption The diagrammatic cross-section of energy tracking bracket.
Multiple yoke crossties 4 including 5 sum of main shaft, it is characterised in that: each yoke crosstie 4 include upper layer crossbeam 4-1 and Lower layer crossbeam 4-2 is fixedly connected between upper layer crossbeam 4-1 and lower layer crossbeam 4-2 by connecting rod 4-3;
The upper layer crossbeam 4-1 of multiple yoke crossties 4 is fixedly arranged on main shaft 5, so that the tracking center of rotation 6 of yoke crosstie 4 It falls between upper layer crossbeam 4-1 and lower layer crossbeam 4-2.
Yoke crosstie 4 is left and right axially symmetric structure;The main shaft 5 is fixedly arranged at the symmetrical center positions of upper layer crossbeam 4-1.
The lower layer crossbeam 4-2 consolidation of multiple yoke crossties 4 passes through on stringer 4-4.
The length of upper layer crossbeam 4-1 is less than the length of lower layer's crossbeam 4-2.Upper layer photovoltaic module is placed on the crossbeam 4-1 of upper layer Lower layer's photovoltaic module 9 and 10 is placed on 8, lower layer crossbeam 4-2, upper layer photovoltaic module 8 and lower layer's photovoltaic module 9 and 10 make full use of Space will not mutually generate and block.
The relative position of two interlayers and its with tracking center of rotation at a distance from determine method:
(M1+m1)L1=(M2+m2)L2 (1)
In formula: M1For the total weight of upper layer photovoltaic module, m1For the total weight of upper layer crossbeam, L1For upper layer crossbeam and upper layer Distance of the photovoltaic module center of gravity to tracking center of rotation;
M2For the total weight of lower layer's photovoltaic module, m2For the total weight of lower layer's crossbeam, L2For lower layer's crossbeam and lower layer's photovoltaic group Distance of the part center of gravity to tracking center of rotation;
If structure is complicated, for ease of calculation, upper layer crossbeam and upper layer photovoltaic module center of gravity to tracking center of rotation Distance L1, multinomial, the distance L of lower layer's crossbeam and lower layer's photovoltaic module center of gravity to tracking center of rotation can be resolved into2It can also divide Solution is at multinomial.
The first step is required according to user, can determine M first1And M2
Second step determines L according to engineering design1Or L2
Third step solves unique variable, i.e. L2Or L1
If upper layer crossbeam and lower layer's beam structure are complicated, integrated form can also be used to continuous Mass Distribution, on Formula needs to be converted into integral operation.This belongs to mathematical operation, seldom lays down a definition herein.
Embodiment 2:
In compliance with the above technical solution, as shown in Fig. 2, the present embodiment provides the sun of a kind of high stability and low driving energy consumption Energy tracking device is mounted on the bracket 3 on support column 1 including support column 1 and by rotation axis 2, and the bracket 3 includes main shaft Multiple yoke crossties 4 of 5 sums, each yoke crosstie 4 include upper layer crossbeam 4-1 and lower layer crossbeam 4-2, and upper layer crossbeam 4-1 is under It is fixedly connected between layer crossbeam 4-2 by connecting rod 4-3;
The upper layer crossbeam 4-1 of multiple yoke crossties 4 is fixedly arranged on main shaft 5, so that the tracking center of rotation 6 of yoke crosstie 4 It falls between upper layer crossbeam 4-1 and lower layer crossbeam 4-2;
Rotation axis 2 is fixedly arranged on main shaft 5, and rotation axis 2 is located at the lower section of main shaft 5 and is arranged in parallel with main shaft 5.
Solar energy tracking device is single shaft tracking apparatus or double-axis tracking device, depending on specific actual condition.? The center of gravity of bracket 4 can be dropped to tracking center of rotation hereinafter, to improve the stabilization of the bracket by the biggish area of wind-force Property, increase weatherliness.
Yoke crosstie 4 in the present embodiment is 6.
Bearing spider 7 is installed, rotation axis 2 is mounted on bearing spider 7 and can rotate on support column 1.Support column 1 can be with Be one, be also possible to two, in double-axis tracking support column only one.The lower end of support column and ground consolidation, upper end peace Equipped with bearing spider 7.Support column 1 is also referred to as southern column and northern column in this field.The bearing spider 7 of rotation axis 2 is installed according to reality It needs that installation can also be tilted with right angle setting.
For lower layer crossbeam 4-2 in addition to crossing the part blocked with upper layer photovoltaic module 8, lower layer's photovoltaic module 9 is installed in remaining position. Rotation axis 2 is connect by rolling bearing with 1 upper end of support column.
Additional reinforcement bar 4-5 is additionally provided between upper layer crossbeam 4-1 and lower layer crossbeam 4-2.If the power of tracking device It is larger, it is also necessary to increase necessary auxiliary supports to increase the intensity of crossbeam.
The length of upper layer crossbeam 4-1 is less than the length of lower layer's crossbeam 4-2.
Yoke crosstie 4 is left and right axially symmetric structure;The main shaft 5 is fixedly arranged at the symmetrical center positions of upper layer crossbeam 4-1.
The lower layer crossbeam 4-2 of multiple yoke crossties 4 is fixedly arranged on stringer 4-4.
In order to more intuitively explain that the design scheme of this patent, Fig. 2 give a kind of oblique uniaxiality tracking bilayer photovoltaic module The example schematic diagram of bracket.In Fig. 2, by rotation axis 2 and whole rotatable parts are divided by the plane parallel with upper layer crossbeam 4-1 Upper and lower two parts, the total weight of upper part constitute the total weight m of upper layer crossbeam 4-11And its m1Weight distribution, below Partial total weight constitutes the total weight m of lower layer crossbeam 4-22And its m2Weight distribution.According to selected photovoltaic module weight Measure M1And M2And its distribution of weight, L is determined further according to mechanical design constraints condition1.Solving equation (1) can be obtained design Parameter L2.In the biggish area of wind-force, it can suitably increase L2So as to by the center of gravity of the bracket drop to tracking center of rotation hereinafter, To improve the stability of the bracket, weatherliness is increased.

Claims (1)

1. a kind of high stability and it is low driving energy consumption solar energy tracking device, including support column (1) and by rotation axis (2) pacify Bracket (3) on support column (1), the bracket (3) include main shaft (5) and multiple yoke crossties (4), feature exists In: each yoke crosstie (4) include upper layer crossbeam (4-1) and lower layer's crossbeam (4-2), upper layer crossbeam (4-1) and lower layer crossbeam (4- 2) it is fixedly connected between by connecting rod (4-3);
The upper layer crossbeam (4-1) of multiple yoke crossties (4) is fixedly arranged on main shaft (5), so that in the tracking rotation of yoke crosstie (4) The heart (6) is fallen between upper layer crossbeam (4-1) and lower layer's crossbeam (4-2);
Rotation axis (2) is fixedly arranged on main shaft (5), and rotation axis (2) is located at the lower section of main shaft (5) and is arranged in parallel with main shaft (5);
It is equipped with bearing spider (7) on the support column (1), rotation axis (2) is mounted on energy on bearing spider (7) by bearing Enough rotations;
The length of the upper layer crossbeam (4-1) is less than the length of lower layer's crossbeam (4-2);
The yoke crosstie (4) is left and right axially symmetric structure;The main shaft (5) is fixedly arranged at the symmetrical of upper layer crossbeam (4-1) Center;
Lower layer's crossbeam (4-2) of multiple yoke crossties (4) is fixedly arranged on stringer (4-4);
The solar energy tracking device is that single shaft tracking apparatus or double-axis tracking device can incite somebody to action in the biggish area of wind-force The center of gravity of bracket (4) drops to tracking center of rotation hereinafter, to improve the stability of the bracket, increases weatherliness;
The relative position of two interlayers and its with tracking center of rotation at a distance from determine method:
(M1+m1)L1=(M2+m2)L2
In formula: M1For the total weight of upper layer photovoltaic module, m1For the total weight of upper layer crossbeam, L1For upper layer crossbeam and upper layer photovoltaic Distance of the component center of gravity to tracking center of rotation;
M2For the total weight of lower layer's photovoltaic module, m2For the total weight of lower layer's crossbeam, L2For lower layer's crossbeam and lower layer's photovoltaic module weight Distance of the heart to tracking center of rotation;
It is appropriate to increase L2So that the center of gravity of the bracket is dropped to tracking center of rotation or less.
CN201610202815.7A 2016-04-01 2016-04-01 A kind of the solar energy tracking bracket and device of high stability and low driving energy consumption Active CN105743427B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106253825B (en) * 2016-09-14 2018-07-10 四川中惯科技股份有限公司 A kind of supporting rack for photovoltaic generation tracks of device
CN106532890A (en) * 2016-12-28 2017-03-22 中国西电电气股份有限公司 Ground energy storage-type vehicle-mounted super-capacitor charging device

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Publication number Priority date Publication date Assignee Title
CN201708736U (en) * 2010-04-21 2011-01-12 中环光伏系统有限公司 Frame structure for solar tracking system
CN102184983A (en) * 2011-04-18 2011-09-14 武汉能极科技有限公司 Bearing device of large three-axis solar-cell panel
CN202403437U (en) * 2011-12-16 2012-08-29 张宗炜 Passive tracking holder for solar device
CN202996856U (en) * 2012-12-03 2013-06-12 北京京仪敬业电工科技有限公司 A staggered-structure photovoltaic support used for concentrating modules

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201708736U (en) * 2010-04-21 2011-01-12 中环光伏系统有限公司 Frame structure for solar tracking system
CN102184983A (en) * 2011-04-18 2011-09-14 武汉能极科技有限公司 Bearing device of large three-axis solar-cell panel
CN202403437U (en) * 2011-12-16 2012-08-29 张宗炜 Passive tracking holder for solar device
CN202996856U (en) * 2012-12-03 2013-06-12 北京京仪敬业电工科技有限公司 A staggered-structure photovoltaic support used for concentrating modules

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