CN101728980A - Polar axis tracking device of solar collector - Google Patents

Polar axis tracking device of solar collector Download PDF

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Publication number
CN101728980A
CN101728980A CN200910201437A CN200910201437A CN101728980A CN 101728980 A CN101728980 A CN 101728980A CN 200910201437 A CN200910201437 A CN 200910201437A CN 200910201437 A CN200910201437 A CN 200910201437A CN 101728980 A CN101728980 A CN 101728980A
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CN
China
Prior art keywords
rotating
revolving
solar
cooperates
rod
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Pending
Application number
CN200910201437A
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Chinese (zh)
Inventor
项晓东
万荣南
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YIKEBO ENERGY SCIENCE AND TECHNOLOGY (SHANGHAI) Co Ltd
Original Assignee
YIKEBO ENERGY SCIENCE AND TECHNOLOGY (SHANGHAI) Co Ltd
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Application filed by YIKEBO ENERGY SCIENCE AND TECHNOLOGY (SHANGHAI) Co Ltd filed Critical YIKEBO ENERGY SCIENCE AND TECHNOLOGY (SHANGHAI) Co Ltd
Priority to CN200910201437A priority Critical patent/CN101728980A/en
Publication of CN101728980A publication Critical patent/CN101728980A/en
Pending legal-status Critical Current

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    • 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 invention provides a polar axis tracking device of a solar collector, comprising a driving mechanism, a first rotating mechanism and a second rotating mechanism. The driving mechanism provides a rotating torque force; the first rotating mechanism is matched with the driving mechanism and transports the rotating torque force; and the second rotating mechanism is matched with the first rotating mechanism and drives a panel of the collector to rotate around a polar axis. The rotating control of the panel of the solar collector can be realized by the simple match of the first rotating mechanism, the second rotating mechanism and the driving mechanism without complicated structure, therefore, the cost of the whole system can be reduced beneficially.

Description

The polar axis tracking device of solar collector
[technical field]
The present invention belongs to field of solar energy on broad sense, in this solar tracking system field of refering in particular to photovoltaic battery panel and focusing type solar heat collector, especially refer to the field of pole axis solar tracking system.
[background technology]
The present invention is meant solar collector, especially refers to the pole axis tracking system device, follows the tracks of the motion of the sun with respect to the earth, thereby makes collection solar energy reach higher efficient and lower cost.The present invention is applied to dull and stereotyped photovoltaic panel and focuses on photo-thermal or photovoltaic devices.
The photovoltaic solar cell plate is widely used on the Application of Solar Energy of dwelling house or commerce.Because the motion of the relative earth of the sun, the sunlight that causes shining on the fixing photovoltaic battery panel has different incidence angles in the different moment or annual different time every day.This kind incident ray can reduce the collection efficiency of solar panel and reduce the electric weight that this solar panel produces.Because the solar energy of collecting is directly proportional with cosine angle, i.e. angle between the vertical surface of the incidence angle of sunlight and solar panel, the loss that this effect caused is the cosine losses of knowing.For improving the collection efficiency of sunlight, solar panel can use a tracker to make it keep approaching vertical position with sun incident light.
Tracker can be widely used on the focusing solar panels, by large-area optical collector with solar light focusing on a small size solar collector, this solar collector can be photovoltaic cell or photothermal converter.For focus is remained on the target receiver, this tracking system will be followed solar motion, to keep focusing, and the mechanical conceptual structure that realizes this kind tracking system at present is too complicated, and in all systems, the main body of solar collector can apply a bigger moment of torsion to pole axis, and need rotate with fixing speed at day spaced winding pole axis.So can increase the loading demand of motor.Simultaneously, under high wind load situation, the wind that is born on the solar collector carries and will be applied on the motor, thereby make system's instability, and when a motor and a plurality of solar collector adopt when being rigidly connected, the wind that is born on these a plurality of solar collectors carries on the motor that will add up so far, then is easier to cause system's instability.
[summary of the invention]
Purpose of the present invention is exactly for a kind of polar axis tracking device of solar collector is provided, to overcome the baroque defective of polar axis tracking device in the prior art.
For achieving the above object, the polar axis tracking device of implementing solar collector of the present invention comprises driving mechanism that rotary torsion is provided, cooperates first rotating mechanism that transmits rotary torsion with driving mechanism and cooperates and drive collector panel with first rotating mechanism and center on second rotating mechanism that pole axis rotates.
According to above-mentioned principal character, first rotating mechanism is a body of rod, and this body of rod is provided with a threaded area.
According to above-mentioned principal character, second rotating mechanism comprises a revolving part, and this revolving part combines with the rotating shaft of solar energy module, and cooperates with the threaded area of the body of rod mode with worm and wormwheel.
According to above-mentioned principal character, second rotating mechanism comprises first revolving part, second revolving part and rotation driving member, this rotation driving member cooperates with first and second revolving part with the transmission rotary torsion, the threaded area of first revolving part and the body of rod cooperates in the mode of worm and wormwheel, and second revolving part combines with the rotating shaft of solar energy module.
According to above-mentioned principal character, this rotation driving member is hawser or chain.
Another purpose of the present invention is to provide a kind of simple in structure and solar module array of being easy to control.
For achieving the above object, the invention provides a kind of solar module array, this solar module array comprises: a plurality of solar energy modules, each solar energy module all rotate around a rotating shaft, each rotating shaft and other shaft parallels are provided with, and wherein each solar energy module comprises:
First rotating mechanism, wherein this first rotating mechanism links to each other with first rotating mechanism of follow-up solar energy module;
Second rotating mechanism cooperates with first rotating mechanism, drives a panel around the rotating shaft rotation;
A driving mechanism is connected with at least one first rotating mechanism, produces rotary torsion.
According to above-mentioned principal character, first rotating mechanism is a body of rod, and this body of rod is provided with a threaded area.
According to above-mentioned principal character, second rotating mechanism comprises a revolving part, and this revolving part combines with the rotating shaft of solar energy module, and cooperates with the threaded area of the body of rod mode with worm and wormwheel.
According to above-mentioned principal character, second rotating mechanism comprises first revolving part, second revolving part and rotation driving member, this rotation driving member cooperates the transmission rotary torsion with first and second revolving part, the threaded area of first revolving part and the body of rod cooperates in the mode of worm and wormwheel, and second revolving part combines with the rotating shaft of solar energy module.
According to above-mentioned principal character, this rotation driving member is hawser or chain.
Compared with prior art, the present invention just can realize the rotation of solar collector panel is controlled by the cooperation of simple first and second rotating mechanism and driving mechanism, does not need complicated structure, therefore can advantageously reduce the cost of whole system.Adopt the mode of worm and wormwheel to cooperate simultaneously, the wind of having avoided bearing on the solar collector carries etc. and to be transferred on the motor, thereby avoids system's instability.
[description of drawings]
Fig. 1 is the schematic side view of a solar energy pole axis tracker.
Fig. 2 is the front view of solar energy pole axis tracker shown in Figure 1.
Fig. 3 A and Fig. 3 B are respectively the top view and the end views of employed motor/gear on worm package system among Fig. 1.
Fig. 4 is solar energy pole axis tracker shown in Figure 1 rotates to the position in morning from the center a front view (with respect to the center).
Fig. 5 is the schematic diagram of the tracker array that is positioned at sun noon position that is driven by a group of motors piece installing shown in Figure 1.
Fig. 6 is the schematic diagram of the tracker array that is positioned at the position in morning that is driven by a group of motors piece installing shown in Figure 1.
Fig. 7 is the schematic diagram of one embodiment of the invention.
Fig. 8 is the schematic diagram of another angle of Fig. 7.
Fig. 9 is another embodiment of the present invention schematic diagram.
Figure 10 is the schematic diagram of another angle of Fig. 9.
Figure 11 is the schematic diagram of driving mechanism used in the present invention.
[execution mode]
Seeing also Fig. 1 to Fig. 6 is the schematic diagram of a solar energy pole axis tracker and use, this kind structure is disclosed in another patent application by the applicant, be incorporated herein and just be convenient to the auditor basic structure and the operation principle of solar energy pole axis tracker had a basic understanding, and center of gravity of the present invention is the improvement of polar axis tracking device, therefore will no longer do detailed description again to other structures of solar receiver to Fig. 7 to the description of structure shown in Figure 10.
With reference to the figure of diagram 1, pole axis 1 (Polar Axis) is, to support to pivot with its base as the structure crossbeam and by two ball bearings 3 and 4 (the perhaps bearing sleeve of any other type).Solar collection panels 2 is fixed on the pole axis 1, and with its rotation.Bearing 3 is fixed on the rotatable hinge 7 by its base, and this hinge is fixed on the base 6 subsequently.Bearing 4 is fixed on the support structural frame 8 by its base, and this framework 8 is fixed on the fixture 5.The length of framework 8 and its height-adjustable on fixture 5 are so that the inclination angle between pole axis and the horizontal plane is equivalent to the angle of latitude (Latitude Angle) of installation site.As shown in Figure 2, chain pitch wheel 9 is to be driven by motor/worm-gear toothing assembly 14, afterwards chain drive-belt 11 again.The two ends of chain 11 are horizontally fixed on the hinge 12 and 13 that is located on the pole axis 1.Shown in Fig. 3 A and Fig. 3 B, a stepping motor that has reduction gear box 19 drives screw mandrel 23 by one group of travelling gear 20.Screw mandrel 23 is pivoted by two ball bearings 21 and 22 and supports, and is fixed on worm-gear toothing 24 on the axostylus axostyle 16 with driving.Axostylus axostyle 16 is to pivot by two ball bearings 18 to support.The effect of gear on worm 24 is in order to prevent because the deadweight of panel 2 or wind carry the counter-rotating of passing through chain pitch wheel 9 that causes moves, just promptly have only the rotation of screw mandrel 23 can make gear on worm 24 rotations, and the rotation of gear on worm 24 can't drive screw mandrel 23.Three chain pitch wheels 9,10,15 are mounted and fixed on the axostylus axostyle 16.Chain pitch wheel 9 chain drive-belts 11 are with swing bolster 1.Chain pitch wheel 10 and 15 is used to a plurality of trackers and chain 26 and 27 bindings are linked together, and this can join shown in Figure 5.The base 25 of motor/worm-gear toothing assembly 14 is installed on the framework 8.When the motor swing pinion, panel 2 is along pole axis 1 rotation, as Fig. 4 and shown in Figure 6.Motor is programmed to move with the sun of following the tracks of between daytime with 15 degree rotation pole axis per hour between daytime.
See also Fig. 7 to shown in Figure 10, be the polar axis tracking device of implementing solar collector of the present invention and the solar collector array with this polar axis tracking device, the polar axis tracking device of wherein implementing solar collector of the present invention comprises driving mechanism that rotary torsion is provided, cooperate first rotating mechanism that transmits rotary torsion with driving mechanism and cooperates and drive collector panel with first rotating mechanism and center on second rotating mechanism that pole axis rotates.In the specific implementation, first rotating mechanism is the body of rod 302 as shown in Figure 7, and this body of rod 302 is provided with a threaded area 306, and second rotating mechanism can be revolving part shown in Figure 7 304, this revolving part 304 combines with the rotating shaft (pole axis) of solar energy module, and cooperates with the threaded area 306 of the body of rod 302 mode with worm and wormwheel.
Certain second rotating mechanism also can comprise first revolving part shown in Figure 9, second revolving part and rotation driving member, this rotation driving member can be flexible connecting member, as hawser or chain, and cooperate with first and second revolving part with the transmission rotary torsion, first revolving part can be a runner, and cooperate with the threaded area of the body of rod mode with worm and wormwheel, and second revolving part also can be a runner, and combine with the rotating shaft of solar energy module.Concrete structure as for above-mentioned each element can be with reference to following detailed explanation.And driving mechanism can be one and has the structure of a motor and worm and wormwheel combination.
See also Fig. 7 and shown in Figure 8, be the schematic diagram of first embodiment of the invention, wherein a motor with shell is provided with combination 301 relative a plurality of panels 305 of worm and wormwheel.This motor 301 is used for rotating a body of rod 302, and this body of rod 302 is provided with a threaded area 306, and this threaded area 306 is in order to cooperate by gear on worm mechanism with a revolving part 304 (as a runner).One panel or receiver (as solar thermal energy or photovoltaic gatherer) 305 cooperates with this revolving part 304.So, motor 301 can rotate the panel 305 of all serial connections by program control simultaneously to reach the purpose that is synchronized with the movement with the tracking solar motion.Moreover the mechanical structure of this kind gear on worm is simple relatively, and the employed part of this kind structure compare with the employed part of other structures be easy to obtain and price relatively low, therefore can reduce the cost of whole system.For example, the body of rod 302 can be a body, and can threaded area 306 is set or adopt the mode of other lower cost to make in a body part.
See also Fig. 9 and shown in Figure 10, be another embodiment of the present invention, wherein the gear on worm among Fig. 9 combination 401,402,403,404,405 cooperates with panel or receiver 408, and wherein above-mentioned gear on worm makes up 401,402,403,404,405 structure can be identical with the combination of Fig. 7, gear on worm shown in Figure 8.This embodiment then passes through another revolving part 405,407 and a flexible connecting member 406 (as wirerope or chain etc.) to be connected with panel 408.
As shown in Figure 9, a motor with shell is provided with combination 401 relative a plurality of panels 408 of worm and wormwheel.This motor 401 is used for rotating a body of rod 402, and this body of rod 402 is provided with a threaded area 403, and this threaded area 403 is in order to cooperate by gear on worm mechanism with first revolving part 405.In addition, flexible connecting member 406 or other rotation conversion elements cooperate with first revolving part 405, and second revolving part 407 then cooperates with this flexible connecting member 406.Further, panel or receiver 408 cooperate with second revolving part 407.So, this motor 401 can rotate the panel 408 of all serial connections by program control simultaneously to reach the purpose that is synchronized with the movement with the tracking solar motion.In the present embodiment promptly, cooperation that can be by first revolving part 405, second revolving part 407 and flexible connecting member 406 or other rotation conversion element is rotating panel 408 so that necessary active force directly to be provided, thereby does not need the structure and the calculating of complexity needed in the art.Moreover as mentioned above, the mechanical structure of this kind gear on worm is simple relatively, and the employed part of this kind structure compare with the employed part of other structures be easy to obtain and price relatively low, therefore can reduce the cost of whole system.
Can consult shown in Figure 11 for Fig. 7 to the driving mechanism of structure shown in Figure 10, for for simplicity, motor does not draw among the figure, this driving mechanism is motor/gear on worm assembly 1600, wherein motor is by power shaft 1671 driven wheels 1672, gear 1672 driven wheels 1673 afterwards, gear 1673 driven wheels 1674 afterwards, gear 1674 driven wheels 1675 afterwards, gear 1675 driven wheels 1676 afterwards, gear 1676 driven wheels 1677 afterwards, gear 1677 driven wheels 1678 afterwards, gear 1678 driven wheels 1679 afterwards, gear 1679 drives output shafts 1680 afterwards, thereby drive moving runner 1602a outputting torsion, in the present embodiment, this moving runner 1602a can be a worm gear, and its below correspondence is provided with a worm screw (this structure can be identical with the structure of revolving part 304 with threaded area among Fig. 8 306) accordingly, and these worm screw two ends are connected with first rotating mechanism (as the body of rod 302) by shaft coupling (as universal joint), so drive the rotation of first rotating mechanism.Certainly, this driving mechanism also can adopt other mode, drives the rotation of first rotating mechanism as stepping motor, reduction box, gear combination, hawser or compound modes such as chain and sprocket wheel.
Compared with prior art, the present invention just can realize the rotation of solar collector panel is controlled by the cooperation of simple first and second rotating mechanism and driving mechanism, does not need complicated structure, therefore can advantageously reduce the cost of whole system. Moreover, owing to all adopt the mode of worm and wormwheel to cooperate between motor and the body of rod and the body of rod and the revolving part, thereby the rotary torsion that can only make motor is transferred to revolving part with rotation solar collector panel, and act on active force (carrying such as wind) on the solar collector panel can't reverse transfer to motor shaft, thereby avoid system's instability, utilize simultaneously the mode of worm and wormwheel to cooperate, thereby make the rotation of motor can the very direct rotation that transfers panel to, the generation of phenomenon of namely not dallying is shortened the control response time thereby be beneficial to. In addition, be connected with the body of rod of solar energy module by shaft coupling (such as universal joint) the worm screw of driven by motor, the problem that need not consider the coaxial setting of the body of rod like this is if namely the two some axial deviation in the axial direction also can not affect the transmission of rotary torsion.

Claims (10)

1. the polar axis tracking device of a solar collector is characterized in that driving mechanism that this polar axis tracking device comprises provides rotary torsion, cooperates first rotating mechanism that transmits rotary torsion with driving mechanism and cooperates and drive collector panel with first rotating mechanism and center on second rotating mechanism that pole axis rotates.
2. the polar axis tracking device of solar collector as claimed in claim 1, it is characterized in that: first rotating mechanism is a body of rod, and this body of rod is provided with a threaded area.
3. the polar axis tracking device of solar collector as claimed in claim 2, it is characterized in that: second rotating mechanism comprises a revolving part, this revolving part combines with the rotating shaft of solar energy module, and cooperates with the threaded area of the body of rod mode with worm and wormwheel.
4. the polar axis tracking device of solar collector as claimed in claim 1, it is characterized in that: second rotating mechanism comprises first revolving part, second revolving part and rotation driving member, this rotation driving member cooperates with first and second revolving part with the transmission rotary torsion, the threaded area of first revolving part and the body of rod cooperates in the mode of worm and wormwheel, and second revolving part combines with the rotating shaft of solar energy module.
5. the polar axis tracking device of solar collector as claimed in claim 4, it is characterized in that: this rotation driving member is hawser or chain.
6. solar module array, this solar module array comprises: a plurality of solar energy modules, each solar energy module are all around rotating shaft rotation, and each rotating shaft and the setting of other shaft parallels is characterized in that each solar energy module comprises:
First rotating mechanism, wherein this first rotating mechanism links to each other with first rotating mechanism of follow-up solar energy module;
Second rotating mechanism cooperates with first rotating mechanism, drives a panel around the rotating shaft rotation;
A driving mechanism is connected with at least one first rotating mechanism, produces rotary torsion.
7. solar module array as claimed in claim 6 is characterized in that: first rotating mechanism is a body of rod, and this body of rod is provided with a threaded area.
8. solar module array as claimed in claim 7 is characterized in that: second rotating mechanism comprises a revolving part, and this revolving part combines with the rotating shaft of solar energy module, and cooperates with the threaded area of the body of rod mode with worm and wormwheel.
9. solar module array as claimed in claim 6, it is characterized in that: second rotating mechanism comprises first revolving part, second revolving part and rotation driving member, this rotation driving member cooperates the transmission rotary torsion with first and second revolving part, the threaded area of first revolving part and the body of rod cooperates in the mode of worm and wormwheel, and second revolving part combines with the rotating shaft of solar energy module.
10. solar module array as claimed in claim 9 is characterized in that: this rotation driving member is hawser or chain.
CN200910201437A 2009-12-18 2009-12-18 Polar axis tracking device of solar collector Pending CN101728980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910201437A CN101728980A (en) 2009-12-18 2009-12-18 Polar axis tracking device of solar collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910201437A CN101728980A (en) 2009-12-18 2009-12-18 Polar axis tracking device of solar collector

Publications (1)

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CN101728980A true CN101728980A (en) 2010-06-09

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CN200910201437A Pending CN101728980A (en) 2009-12-18 2009-12-18 Polar axis tracking device of solar collector

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102193560A (en) * 2011-03-20 2011-09-21 邱定平 Sun tracking mechanism and application thereof
CN102854890A (en) * 2011-07-01 2013-01-02 益科博能源科技(上海)有限公司 Linkage tracking device for solar panel
CN105720908A (en) * 2016-03-22 2016-06-29 苏州合欣美电子科技有限公司 Automatic tilt control device for photovoltaic modules
CN107702353A (en) * 2017-09-28 2018-02-16 佛山圣哥拉太阳能科技有限公司 A kind of off-axis formula Photospot solar system and its application method
CN108712142A (en) * 2018-04-10 2018-10-26 南京绿新能源研究院有限公司 Can solar tracking tracking photovoltaic plant

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102193560A (en) * 2011-03-20 2011-09-21 邱定平 Sun tracking mechanism and application thereof
CN102854890A (en) * 2011-07-01 2013-01-02 益科博能源科技(上海)有限公司 Linkage tracking device for solar panel
CN105720908A (en) * 2016-03-22 2016-06-29 苏州合欣美电子科技有限公司 Automatic tilt control device for photovoltaic modules
CN107702353A (en) * 2017-09-28 2018-02-16 佛山圣哥拉太阳能科技有限公司 A kind of off-axis formula Photospot solar system and its application method
CN108712142A (en) * 2018-04-10 2018-10-26 南京绿新能源研究院有限公司 Can solar tracking tracking photovoltaic plant

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