WO2013002027A1 - Dispositif de poursuite du soleil - Google Patents

Dispositif de poursuite du soleil Download PDF

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Publication number
WO2013002027A1
WO2013002027A1 PCT/JP2012/065115 JP2012065115W WO2013002027A1 WO 2013002027 A1 WO2013002027 A1 WO 2013002027A1 JP 2012065115 W JP2012065115 W JP 2012065115W WO 2013002027 A1 WO2013002027 A1 WO 2013002027A1
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WO
WIPO (PCT)
Prior art keywords
shaft
axis
motor
rotation
transmission unit
Prior art date
Application number
PCT/JP2012/065115
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English (en)
Japanese (ja)
Inventor
忠彦 加藤
Original Assignee
株式会社ユニバンス
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Filing date
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Application filed by 株式会社ユニバンス filed Critical 株式会社ユニバンス
Publication of WO2013002027A1 publication Critical patent/WO2013002027A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/20—Supporting structures directly fixed to an immovable object
    • H02S20/22—Supporting structures directly fixed to an immovable object specially adapted for buildings
    • H02S20/23—Supporting structures directly fixed to an immovable object specially adapted for buildings specially adapted for roof structures
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present invention relates to a solar tracking device, and more particularly to a solar tracking device that can reduce the number of reduction gears and motors, and can be reduced in size and weight, and at the same time, can be reduced in manufacturing cost.
  • a photovoltaic power generation system that photoelectrically converts sunlight to generate electricity
  • a solar thermal power generation system that reflects and collects sunlight and condenses power by solar heat, and reflects sunlight to the shade and uses daylighting and solar heat
  • a solar utilization system has been developed.
  • a solar tracking device that changes the inclination of the light receiving unit that receives sunlight according to the azimuth and altitude of the sun is employed.
  • one axis that changes the inclination of the light receiving unit corresponding to the azimuth of the sun the other axis that changes the inclination of the light receiving unit corresponding to the altitude of the sun
  • 2 A motor is known that includes two motors that respectively rotate and drive two shafts and two speed reducers that reduce the number of rotations of these motors and output them to the respective shafts (Patent Document 1).
  • Patent Document 1 requires two motors and two reduction gears with a high reduction ratio in order to independently rotate the two shafts corresponding to the speed at which the sun moves on the celestial sphere. . Since the motor and the speed reducer are driven two by two, there is a problem that the apparatus becomes larger and the weight increases and the manufacturing cost further increases.
  • the present invention has been made to solve the above-described problems, and provides a solar tracking device that can reduce the number of motors and speed reducers, can be reduced in size and weight, and can be reduced in manufacturing cost. It is an object.
  • the position of the axial center is fixed with respect to the ground, and it rotates about the axial center corresponding to one of the azimuth or altitude of the sun.
  • a first axis configured to be capable of rotating, and a second axis configured to be rotatable around the first axis corresponding to the other of the azimuth or altitude of the sun and to which a light receiving unit that receives sunlight is fixed And.
  • One of the first transmission unit or the second transmission unit transmits rotation to one of the first shaft and the second shaft by the first one-way clutch. Thereby, at least one of the first axis or the second axis is rotated in accordance with the azimuth or altitude of the sun.
  • the speed at which the first axis and the second axis rotate, that is, the inclination of the light receiving unit at each time is determined by the speed transmission ratio of the first transmission unit and the second transmission unit. Therefore, it is possible to enable the light receiving unit to track the sun by setting the speed transmission ratio of the first transmission unit and the second transmission unit according to the latitude and longitude of the installation location of the sun tracking device.
  • an error speed transmission ratio error
  • the rotational position of the first axis or the second axis that is not at the target rotational position.
  • the rotation is transmitted from the drive shaft to the first transmission unit and the second transmission unit.
  • One of the first transmission unit or the second transmission unit is configured to block transmission of rotation to one of the first shaft or the second shaft by the first one-way clutch, and the other of the first transmission unit or the second transmission unit is the first one. The rotation is transmitted to the other of the first axis and the second axis.
  • the other of the first axis and the second axis can be rotated without rotating one of the first axis and the second axis, and the discrepancy between the position of the sun on the celestial sphere and the inclination of the light receiving unit can be reduced. Can be resolved. As a result, the light can be tracked by the light receiving unit.
  • the solar tracking device can be reduced in size and weight, and the manufacturing cost can be reduced by the difference between the reduced motor and reduction gear and the added first one-way clutch.
  • the parts of the first transmission unit and the second transmission unit can be shared. There is an effect that can.
  • the motor is first rotated in the other direction to rotate the other of the first axis or the second axis, and then the motor. It is possible to rotate one of the first axis and the second axis by rotating in one direction.
  • the speed at which the inclination of the light receiving portion changes due to the rotation of the motor in one direction is one of the first shaft and the second shaft to which the rotation is transmitted via the first one-way clutch.
  • the speed component around is set smaller than the speed component around the other of the first axis or the second axis. Therefore, when the motor is rotated in one direction so that one of the first axis or the second axis matches the azimuth or altitude of the sun and the inclination of the light receiving unit is made to correspond to the azimuth or altitude of the sun, the first axis or the second axis The other of the axes rotates slightly ahead of the sun's orientation or altitude at that time.
  • the motor when the motor is rotated in the other direction to transmit the rotation in the other direction of the motor to the other of the first axis or the second axis so as to adjust the preceding amount, the other of the first axis or the second axis is moved to the sun. Can be rotated in the direction opposite to the tracking direction to match the azimuth or altitude of the sun at that time. Note that one of the first axis and the second axis is maintained in a state that matches the direction or altitude of the sun because the rotation of the motor in the other direction is blocked by the first one-way clutch.
  • the speed component around one of the first axis or the second axis to which the rotation of the motor in one direction is transmitted via the first one-way clutch is the speed around the other of the first axis or the second axis. If it is set to be larger than the component, when the motor is rotated in one direction so that one of the first axis or the second axis matches the azimuth or altitude of the sun, for the other of the first axis or the second axis, It rotates slightly later than the direction or altitude of the sun at that time.
  • the motor To adjust the delay, the motor must be rotated in the other direction to rotate the other of the first shaft and the second shaft by about 360 °, and this adjustment takes a long time.
  • one of the first shaft and the second shaft cannot be rotated, so that the sun cannot be tracked during this time. Therefore, the accuracy of tracking the sun decreases. According to the solar tracking device of claim 2, this can be prevented, and in addition to the effect of claim 1, the other of the first axis or the second axis can be adjusted in a short time, and the sun can be adjusted. There is an effect that the accuracy of tracking can be improved.
  • the order of correcting the rotational position of the first axis or the second axis is not limited.
  • the first one-way clutch is disposed on the first axis or the second axis that is set so as to rotate corresponding to the direction of the sun.
  • positioned can always be made to respond
  • the azimuth angle gradually increases, while the altitude angle gradually increases from sunrise to a certain time, but thereafter gradually decreases until sunset.
  • the first or second shaft provided with the first one-way clutch is set to rotate corresponding to the altitude of the sun, the altitude angle gradually increases from sunrise until a certain time, and then gradually until sunset. Therefore, it becomes necessary to return the first axis or the second axis to the other direction.
  • the first shaft or the second shaft can be used even if it is desired to slightly return the first shaft or the second shaft in the other direction. It must be rotated about 360 ° in the direction. The rotation of about 360 ° takes a long time, and the inclination of the light receiving unit during this time does not correspond to the sun, so the accuracy of tracking the sun is reduced.
  • the first axis or the second axis provided with the first one-way clutch is set to rotate with respect to the direction of the sun, so that the first axis or the second axis is unidirectional from sunrise to sunset. It is sufficient to rotate it to the other direction, and it is not necessary to return to the other direction. Since the time when the sun cannot be tracked can be eliminated, in addition to the effect of the first or second aspect, there is an effect that the accuracy of tracking the sun can be improved.
  • the sun tracking device of claim 4 when the rotation of the motor in one direction is transmitted to the drive shaft, the other of the first transmission unit or the second transmission unit is the first shaft or The transmission of rotation to the other side of the second shaft is blocked. Accordingly, one of the first axis and the second axis can be rotated without rotating the other of the first axis and the second axis, and the sun can be tracked by one of the first axis and the second axis.
  • the other of the first transmission unit or the second transmission unit transmits the rotation to the other of the first shaft or the second shaft by the second one-way clutch.
  • the other of the first axis or the second axis can be rotated without rotating one of the first axis or the second axis, and the sun can be tracked by the other of the first axis or the second axis.
  • the motor for tracking the sun in one direction and the other direction there is an effect that the rotation control can be simplified.
  • the first transmission unit or the second transmission unit including the first one-way clutch or the second one-way clutch has the drive shaft that receives a load from the first shaft or the second shaft. Since it is set to be non-rotatable, in addition to the effect of any one of claims 1 to 4, it is possible to prevent the inclination of the light receiving portion from being changed by wind force or the like without providing a mechanical or electrical brake mechanism. effective.
  • the position of the axis center is fixed with respect to the ground, and the first structure is configured to be rotatable about the axis corresponding to one of the azimuth or altitude of the sun.
  • An axis, and a second axis on which a light receiving unit for receiving sunlight is fixed are configured to be rotatable around the first axis corresponding to the other of the azimuth or altitude of the sun.
  • the speed at which the first axis and the second axis rotate, that is, the inclination of the light receiving unit at each time is determined by the speed transmission ratio of the transmission unit. Therefore, it is possible to enable the light receiving unit to track the sun by setting the speed transmission ratio of the transmission unit according to the latitude and longitude of the installation location of the sun tracking device.
  • speed transmission ratio error an error in the transmission unit
  • an installation error in the sun tracking device, or the like occurs, a mismatch occurs between the position of the sun on the celestial sphere and the inclination of the light receiving unit. That is, the light receiving unit cannot track the sun.
  • the motor is driven to rotate in the other direction.
  • the transmission unit interrupts transmission of the rotation to the first shaft by the one-way clutch. Accordingly, the second axis can be rotated without rotating the first axis, and the mismatch between the position of the sun on the celestial sphere and the inclination of the light receiving unit can be eliminated. As a result, the light can be tracked by the light receiving unit.
  • the first axis and the second axis are driven by the motor and the speed reducer one by one without driving the first axis and the second axis independently by the two motors and the speed reducer. Therefore, the solar tracking device can be reduced in size and weight, and the manufacturing cost can be reduced by the difference between the reduced motor and reduction gear and the added one-way clutch.
  • the motor Since the order of correcting the rotational position of the first axis or the second axis is not limited, the motor is first rotated in the other direction to rotate the second axis, and then the motor is rotated in one direction. It is possible to rotate the first axis and the second axis.
  • the second shaft is set to be non-rotatable by the input of the load from the first shaft. Even if no mechanical or electrical brake mechanism is provided, there is an effect that the inclination of the light receiving portion can be prevented from changing due to wind force or the like.
  • (A) is a perspective view of the solar tracking device in 1st Embodiment
  • (b) is a perspective view of the solar tracking device which showed the internal structure typically.
  • (A) is a skeleton diagram of the solar tracking device in front view when the motor is rotated in one direction
  • (b) is a skeleton diagram of the solar tracking device in side view when the motor is rotated in one direction
  • (C) is a skeleton diagram of the solar tracking device in a front view when the motor is rotated in the other direction
  • (d) is a skeleton diagram of the solar tracking device in a side view when the motor is rotated in the other direction.
  • (A) is a skeleton figure of the solar tracking device in a front view when the motor is rotated in one direction in the solar tracking device in the second embodiment, and (b) is a side view when the motor is rotated in one direction. It is a skeleton figure of the solar tracking device in vision, (c) is a skeleton diagram of the solar tracking device in front view when the motor is rotated in the other direction, and (d) is a side view when the motor is rotated in the other direction. It is a skeleton figure of the solar tracking device in vision.
  • (A) is a skeleton figure of the solar tracking device in a front view when the motor is rotated in one direction in the solar tracking device in the third embodiment, and (b) is a side view when the motor is rotated in one direction. It is a skeleton figure of the solar tracking device in vision, (c) is a skeleton diagram of the solar tracking device in front view when the motor is rotated in the other direction, and (d) is a side view when the motor is rotated in the other direction. It is a skeleton figure of the solar tracking device in vision.
  • (A) is a skeleton figure of the solar tracking device in a front view when the motor is rotated in one direction in the solar tracking device in the fourth embodiment, and (b) is a side view when the motor is rotated in one direction. It is a skeleton figure of the solar tracking device in vision, (c) is a skeleton diagram of the solar tracking device in front view when the motor is rotated in the other direction, and (d) is a side view when the motor is rotated in the other direction. It is a skeleton figure of the solar tracking device in vision. It is a perspective view of the solar tracking apparatus in 5th Embodiment.
  • FIG. 1A is a perspective view of the solar tracking device 1 according to the first embodiment of the present invention.
  • the solar tracking device 1 is provided with the base part 2 fixed with respect to the earth, and the housing
  • the motor 4 is driven, the drive shaft 6 is rotated via the speed reducer 5, and the second shaft 8 is rotated to change the inclination of the light receiving unit 9.
  • the light receiving unit 9 is a member that is fixed to the second shaft 8 and whose inclination is changed according to the azimuth and altitude of the sun as the casing 3 and the second shaft 8 rotate.
  • the light receiving unit 9 is a solar cell panel that directly converts solar energy into electric power according to a system in which the solar tracking device 1 is incorporated, a solar power generation system that collects sunlight and uses it as a heat source, Therefore, a reflecting mirror that reflects sunlight is appropriately selected and employed.
  • FIG. 1B is a perspective view of the solar tracking device 1 schematically showing the internal structure from which the housing 3 (see FIG. 1A) is removed, and the base 2 and the light receiving unit 9 are not shown. ing.
  • the drive shaft 6 and the second shaft 8 are disposed so as to be orthogonal to each other, and the first shaft 7 is disposed so as to be orthogonal to the drive shaft 6 and the second shaft 8, respectively.
  • the first shaft 7 is erected on the base 2 (see FIG. 1A) so that the position of the shaft center O is fixed by a bearing (not shown) or the like and is rotatable around the shaft center O. Has been.
  • the motor 4 is configured to be able to output rotations in one direction and the other direction, and the speed of the motor 4 is reduced by the speed reducer 5.
  • the drive shaft 6 is a member that is rotated by the output of the speed reducer 5, and the first transmission unit 10 and the second transmission unit 20 are disposed at a predetermined interval in the axial direction.
  • the first transmission unit 10 is a member that transmits rotation in one direction of the drive shaft 6 to the first shaft 7 and blocks transmission of rotation in the other direction of the drive shaft 6 to the first shaft 7.
  • the first transmission unit 10 is configured by a worm gear having a sprag type one-way clutch, and includes a one-way clutch (first one-way clutch 11) disposed on the drive shaft 6 and the first one-way.
  • a worm 12 formed on the outer periphery of the clutch 11 and a worm wheel 13 disposed on the first shaft 7 so as to mesh with the worm 12 are provided.
  • the second transmission unit 20 is a member that transmits the rotation in one direction and the other direction of the drive shaft 6 from the drive shaft 6 to the second shaft 8.
  • the second transmission portion 20 is constituted by a worm gear, and a worm 21 formed on the drive shaft 6 and a worm wheel 22 disposed on the second shaft 8 so as to mesh with the worm 21.
  • the rotation in one direction of the motor 4 is transmitted to the first shaft 7 and the second shaft 8 by the first transmission unit 10 and the second transmission unit 20, and the rotation in the other direction of the motor 4 is the second transmission unit. 20 is transmitted to the second shaft 8.
  • the speed transmission ratio of the first transmission unit 10 and the second transmission unit 20 due to the rotation of the motor 4 in one direction is such that the rotation speed of the second shaft 8 per rotation of the drive shaft 6 is the rotation speed of the first shaft 7. It is set to be larger. Accordingly, the speed at which the inclination of the light receiving unit 9 changes due to the rotation of the motor 4 in one direction is set such that the speed component around the first axis 7 is smaller than the speed component around the second axis 8.
  • FIG. 2A is a skeleton diagram of the solar tracking device 1 in a front view when the motor 4 is rotated in one direction
  • FIG. 2B is a sun track in a side view when the motor 4 is rotated in one direction
  • FIG. 2 is a skeleton diagram of the device 1.
  • the drive shaft 6 is rotated in one direction, and accordingly, the worm 21 of the second transmission portion 20 is rotated in one direction.
  • the sprag 11a of the first one-way clutch 11 is locked, and the worm 12 rotates in one direction.
  • FIG. 2 shows that the sprag 11a is hatched and locked (see FIG. 2 (a)), and the free sprag 21a unlocked is shown in white (FIG. 2 (c)). reference). Note that hatching or whiteness indicating this lock or free is the same in FIGS. 3 to 5.
  • the worm wheels 13 and 22 respectively meshed with the worms 12 and 21 are rotated in one direction as shown in FIG.
  • the first shaft 7 rotates in the azimuth direction
  • the second shaft 8 rotates in one direction of the altitude direction.
  • the rotational speed of the motor 4, the reduction ratio of the speed reducer 5, and the speed transmission ratios of the first transmission unit 10 and the second transmission unit 20 are set so as to match the moving speed of the sun on the celestial sphere (dedicated parts are used).
  • the inclination of the light receiving unit 9 fixed to the second axis 8 can be changed according to the azimuth and altitude of the sun.
  • FIG. 2C is a skeleton diagram of the solar tracking device 1 in a front view when the motor 4 is rotated in the other direction
  • FIG. 2D is a sun tracking in a side view when the motor 4 is rotated in the other direction.
  • FIG. 2 is a skeleton diagram of the device 1.
  • Rotating the worm 21 in the other direction causes the worm wheel 22 meshing with the worm 21 to rotate in the other direction, as shown in FIG.
  • the rotation of the first axis 7 in the azimuth direction is stopped, and the second axis 8 is rotated in the other direction of the altitude direction, so that there is a mismatch between the position of the sun on the celestial sphere and the inclination of the light receiving unit 9.
  • the light receiving unit 9 can track the sun.
  • the motor 4 and the speed reducer 5 can be reduced to one each.
  • the solar tracking device 1 can be reduced in size and weight, and the manufacturing cost can be reduced by the difference between the reduced motor and reduction gear and the added first one-way clutch 11.
  • the first transmission unit 10 and the second transmission unit 20 are eliminated.
  • the parts of the unit 20 can be shared.
  • the speed at which the inclination of the light receiving unit 9 changes due to the rotation of the motor 4 in one direction is set so that the speed component around the first axis 7 is smaller than the speed component around the second axis 8.
  • 4 is rotated in one direction so that the first axis 7 coincides with the direction of the sun and the inclination of the light receiving unit 9 corresponds to the direction of the sun, the second axis 8 is slightly ahead of the altitude of the sun at that time. Then rotate.
  • the motor 4 is rotated in the other direction and the rotation of the motor 4 in the other direction is transmitted to the second shaft 8 so as to adjust the preceding amount, the second shaft 8 is rotated in the direction opposite to the sun tracking direction.
  • the inclination of the light receiving unit 9 can be made to correspond to the azimuth and altitude of the sun.
  • the speed transmission ratio of the first transmission unit 10 and the second transmission unit 20 due to the rotation of the motor 4 in one direction indicates that the rotation speed of the second shaft 8 per rotation of the drive shaft 6 is the rotation of the first shaft 7. If the speed is set to be smaller than the speed, the speed component around the second axis 8 where the inclination of the light receiving unit 9 changes due to the rotation of the motor 4 in one direction is smaller than the speed component around the first axis 7. Become. In this case, when the motor 4 is rotated in one direction so that the first shaft 7 matches the direction of the sun, the second shaft 8 rotates slightly later than the sun's altitude at that time.
  • the motor 4 To adjust the delay, the motor 4 must be rotated in the other direction to rotate the second shaft 8 by about 360 °, which takes a long time. Moreover, since the 1st axis
  • the altitude angle gradually increases from sunrise to a certain time, and then gradually decreases until sunset. It is necessary to return the first shaft 7 in the other direction.
  • the transmission of the rotation of the motor 4 in the other direction of the first shaft 7 is interrupted by the first one-way clutch 11, even when it is desired to slightly return the first shaft 7 in the other direction, the first shaft 7 is approximately 360 ° in one direction. Must be rotated. This takes a long time, and since the inclination of the light receiving unit 9 during that time is irrelevant to the sun, the accuracy of tracking the sun is reduced.
  • the first shaft 7 that is blocked from rotating in the other direction by the first one-way clutch 11 is set to rotate with respect to the direction of the sun, so from sunrise to sunset, The need to return the first shaft 7 in the other direction can be eliminated.
  • the inclination of the light receiving unit 9 can always correspond to the direction of the sun, and the accuracy of tracking the sun can be improved.
  • the first axis 7 is arranged corresponding to the direction of the sun
  • the second axis 8 is arranged corresponding to the altitude of the sun. Since the rotation of the second shaft 8 in one direction and the other direction of the motor 4 is transmitted by the second transmission unit 20, the second shaft 8 can be rotated in one direction and the other direction according to the altitude of the sun, The sun's altitude direction can be tracked freely.
  • the drive shaft 6 is set to be non-rotatable by the input of a load from the first shaft 7. Specifically, it is set so that the worm 12 (drive shaft 6) cannot be rotated from the worm wheel 13 (first shaft 7) even in the absence of a mechanical or electrical brake mechanism. More specifically, the transmission efficiency of the first transmission unit 10 when the worm 12 is rotated from the worm wheel 13 is set to 0 or negative. Thereby, it is possible to prevent the drive shaft 6 from rotating around the first shaft 7 by wind force or the like, to prevent the inclination of the light receiving unit 9 from changing, and to improve the sun tracking accuracy.
  • the second transmission unit 20 can be set so that the worm 21 (drive shaft 6) cannot be rotated from the worm wheel 22 (second shaft 8) by adjusting the transmission efficiency. It is also possible to make the worm 21 unrotatable from the worm wheel 22 by using the friction (mechanical brake mechanism) of the motor 4 and the speed reducer 5.
  • FIG. 3A is a skeleton diagram of the solar tracking device 101 in a front view when the motor 4 is rotated in one direction in the solar tracking device 101 in the second embodiment, and FIG. It is a skeleton figure of the sun tracking device 101 in the side view when rotated in one direction.
  • the first transmission unit 110 is a member that transmits the rotation in one direction and the other direction of the drive shaft 6 from the drive shaft 6 to the first shaft 7.
  • the first transmission unit 110 is configured by a worm gear, and a worm 111 formed on the drive shaft 6 and a worm wheel 112 disposed on the first shaft 7 so as to mesh with the worm 111. And.
  • the second transmission unit 120 is a member that transmits the rotation in one direction of the drive shaft 6 to the second shaft 8 and blocks the transmission of the rotation in the other direction of the drive shaft 6 to the second shaft 8.
  • second transmission unit 120 is configured by a worm gear having a sprag type one-way clutch, and includes a one-way clutch (first one-way clutch 121) disposed on drive shaft 6 and the first one-way.
  • a worm 122 formed on the outer periphery of the clutch 121 and a worm wheel 123 disposed on the second shaft 8 so as to mesh with the worm 122 are provided.
  • the rotation of the motor 4 in one direction is transmitted to the first shaft 7 and the second shaft 8 by the first transmission unit 110 and the second transmission unit 120, and the motor 4 The rotation in the other direction is transmitted to the first shaft 7 by the first transmission unit 110.
  • the speed transmission ratio of the first transmission unit 110 and the second transmission unit 120 due to the rotation of the motor 4 in one direction is such that the rotation speed of the first shaft 7 per rotation of the drive shaft 6 is the rotation speed of the second shaft 8. It is set to be larger. Accordingly, the speed at which the inclination of the light receiving unit 9 changes due to the rotation of the motor 4 in one direction is set such that the speed component around the first axis 7 is smaller than the speed component around the second axis 8.
  • the drive shaft 6 is rotated in one direction.
  • the sprag 121a of the first one-way clutch 121 is locked, and the worm 122 is integrated. Rotate in the direction. Also in the first transmission unit 110, the worm 111 rotates in one direction.
  • the first shaft 7 rotates in the azimuth direction
  • the second shaft 8 rotates in one direction of the altitude direction.
  • the speed transmission ratio of the first transmission unit 110 and the second transmission unit 120 due to the rotation of the motor 4 in one direction is such that the rotation speed of the first shaft 7 per rotation of the drive shaft 6 is larger than the rotation speed of the second shaft 8. Therefore, when the inclination in the altitude direction of the light receiving unit 9 corresponds to the altitude of the sun, the inclination in the azimuth direction of the light receiving unit 9 precedes the azimuth of the sun on the celestial sphere.
  • FIG. 3C is a skeleton diagram of the solar tracking device 1 in a front view when the motor 4 is rotated in the other direction
  • FIG. 3D is a solar tracking in a side view when the motor 4 is rotated in the other direction
  • FIG. 2 is a skeleton diagram of the device 1.
  • the drive shaft 6 is rotated in the other direction, and the second transmission portion 120 unlocks the sprag 121 a of the first one-way clutch 121, and the worm 122 Transmission of power to is interrupted.
  • the worm 111 rotates in the other direction.
  • the worm wheel 112 that meshes with the worm 111 rotates in the other direction as shown in FIG.
  • the inclination of the light receiving unit 9 in the azimuth direction can be made to correspond to the azimuth of the sun. it can.
  • the light receiving unit 9 can track the sun.
  • the drive shaft 6 is set to be non-rotatable by the input of a load from the second shaft 8. Specifically, it is set so that the worm 122 (drive shaft 6) cannot be rotated from the worm wheel 123 (second shaft 8) even when there is no mechanical or electrical brake mechanism. More specifically, the transmission efficiency of the second transmission unit 120 when rotating the worm 122 from the worm wheel 123 is set to 0 or negative. Thereby, it can prevent that the inclination of the light-receiving part 9 changes with a wind force etc., and can improve the tracking accuracy of the sun.
  • the first transmission unit 110 can be similarly set so that the worm 111 (drive shaft 6) cannot be rotated from the worm wheel 122 (first shaft 7) by adjusting the transmission efficiency. It is also possible to make the worm 111 non-rotatable from the worm wheel 122 using the friction (mechanical brake mechanism) of the motor 4 and the speed reducer 5.
  • FIG. 4A is a skeleton diagram of the solar tracking device 201 in a front view when the motor 4 is rotated in one direction in the solar tracking device 201 in the third embodiment, and FIG. It is a skeleton figure of the sun tracking device 201 in the side view when rotated in one direction.
  • the first transmission unit 210 transmits the rotation of the drive shaft 6 in one direction to the first shaft 7, while the rotation of the drive shaft 6 in the other direction to the first shaft 7. It is a member that blocks transmission.
  • the first transmission unit 210 is configured by a worm gear having a sprag type one-way clutch, and includes a one-way clutch (first one-way clutch 211) disposed on the drive shaft 6, and the first one-way.
  • a worm 212 formed on the outer periphery of the clutch 211 and a worm wheel 213 disposed on the first shaft 7 so as to mesh with the worm 212 are provided.
  • the second transmission unit 220 is a member that transmits the rotation in the other direction of the drive shaft 6 to the second shaft 8 and blocks the transmission of the rotation in one direction of the drive shaft 6 to the second shaft 8.
  • the second transmission unit 220 is configured by a worm gear including a sprag type one-way clutch, and includes a one-way clutch (second one-way clutch 221) disposed on the drive shaft 6, and the second one-way.
  • a worm 222 formed on the outer periphery of the clutch 221 and a worm wheel 223 disposed on the second shaft 8 so as to mesh with the worm 222 are provided.
  • the drive shaft 6 is rotated in one direction.
  • the sprag 211a of the first one-way clutch 211 is locked, and the worm 212 is integrated. Rotate in the direction.
  • the sprag 221a of the second one-way clutch 221 is unlocked, and the worm 222 is not driven.
  • the worm wheel 213 that meshes with the worm 212 rotates in one direction as shown in FIG.
  • the first axis 7 rotates in the azimuth direction
  • the inclination of the light receiving unit 9 in the azimuth direction can correspond to the azimuth of the sun.
  • the worm wheel 223 that meshes with the worm 222 rotates in the other direction, as shown in FIG.
  • the second shaft 8 rotates in the altitude direction
  • the inclination of the light receiving unit 9 in the altitude direction can correspond to the solar altitude.
  • the first shaft 7 and the second shaft 8 can be independently rotated by the first one-way clutch 211 and the second one-way clutch 221 by rotating the motor 4 in one direction or the other direction. Rotation control of the motor 4 for tracking can be simplified.
  • the drive shaft 6 is set to be non-rotatable by the input of a load from the first shaft 7. Specifically, it is set so that the worm 212 (drive shaft 6) cannot be rotated from the worm wheel 213 (first shaft 7) even when there is no mechanical or electrical brake mechanism. More specifically, the transmission efficiency of the first transmission unit 210 when the worm 212 is rotated from the worm wheel 213 is set to 0 or negative.
  • the drive shaft 6 is set to be non-rotatable by the input of a load from the second shaft 8. Specifically, it is set so that the worm 222 (drive shaft 6) cannot be rotated from the worm wheel 223 (second shaft 8) even in the absence of a mechanical or electrical brake mechanism. More specifically, the transmission efficiency of the second transmission unit 220 when rotating the worm 222 from the worm wheel 223 is set to 0 or negative.
  • the 1st transmission part 210 and the 2nd transmission part 220 as mentioned above, it can prevent that the inclination of the light-receiving part 9 changes with a wind force etc., and can improve the tracking accuracy of the sun.
  • FIG. 5A is a skeleton diagram of the solar tracking device 301 in a front view when the motor 4 is rotated in one direction in the solar tracking device 301 in the fourth embodiment, and FIG. It is a skeleton figure of the sun tracking device 301 in the side view when rotated in one direction.
  • the second shaft 308 is a member that is rotated by the output of the speed reducer 5, and is disposed so as to be orthogonal to the first shaft 7, and the transmission unit 310 and the light receiving unit 9 are disposed. Has been.
  • the transmission unit 310 is a member that transmits the rotation of the second shaft 308 in one direction to the first shaft 7 while blocking the transmission of the rotation of the second shaft 308 in the other direction to the first shaft 7.
  • transmission unit 310 is configured by a worm gear including a sprag type one-way clutch, and is formed on the outer circumference of one-way clutch 311 disposed on second shaft 308 and one-way clutch 311.
  • a worm 312 and a worm wheel 313 disposed on the first shaft 7 so as to mesh with the worm 312 are provided.
  • the sun tracking device 301 Since the sun tracking device 301 is configured as described above, rotations in one direction and the other direction of the motor 4 are transmitted from the second shaft 308 to the light receiving unit 9. Further, the rotation of the motor 4 in one direction is transmitted to the first shaft 7 by the transmission unit 310.
  • the speed transmission ratio of the transmission unit 310 is set so that the rotation speed of the second shaft 308 is larger than the rotation speed of the first shaft 7 in one direction of rotation of the motor 4.
  • the second shaft 308 is rotated in one direction, and in the transmission section 310, the sprag 311a of the one-way clutch 311 is locked, and the worm 312 is rotated in one direction. To do. Further, as the second shaft 308 rotates, the inclination of the light receiving unit 9 in the altitude direction changes.
  • the worm wheel 313 that meshes with the worm 312 rotates in one direction as shown in FIG.
  • the first axis 7 rotates in the azimuth direction
  • the inclination of the light receiving unit 9 in the azimuth direction changes.
  • the speed transmission ratio of the transmission unit 310 due to the rotation of the motor 4 in one direction is set so that the rotation speed of the second shaft 308 is larger than the rotation speed of the first shaft 7.
  • FIG. 5C is a skeleton diagram of the solar tracking device 301 in a front view when the motor 4 is rotated in the other direction
  • FIG. 5D is a solar tracking in a side view when the motor 4 is rotated in the other direction
  • 2 is a skeleton diagram of the device 301.
  • the first shaft 7 and the second shaft 308 can be driven by the motor 4 and the speed reducer 5 so that the sun can be tracked. Can be reduced.
  • the solar tracking device 301 can be reduced in size and weight, and the manufacturing cost can be reduced by the difference between the reduced motor and reduction gear and the added one-way clutch 311. Further, since it is not necessary to individually set the speed transmission ratio of the transmission unit 310 for each installation location of the solar tracking device 301 (dedicated parts), it is possible to make the components of the transmission unit 310 common.
  • the second shaft 308 is set to be non-rotatable by the input of a load from the first shaft 7.
  • the worm 312 (second shaft 308) cannot be rotated from the worm wheel 313 (first shaft 7) even in the absence of a mechanical or electrical brake mechanism.
  • the transmission efficiency when rotating the worm 312 from the worm wheel 313 is set to 0 or negative.
  • the second shaft 308 can be made non-rotatable even when an external force such as wind power is applied by using the friction of the motor 4 or the speed reducer 5.
  • FIG. 6 is a perspective view of a solar tracking device 401 according to the fifth embodiment. In FIG. 6, the motor 4, the speed reducer 5, and the drive shaft 6 are not shown.
  • the solar tracking device 401 includes a base portion 402 that is fixed to the ground, a first shaft 407 that is laterally supported while being pivotally supported by the base portion 402, and a first shaft 407.
  • a substantially U-shaped frame 403 that is fixed and swings as the first shaft 407 rotates is provided, and a second shaft 408 that is pivotally supported by the frame 403 and to which the light receiving unit 9 is fixed.
  • the first shaft 407 and the second shaft 408 are linked to a drive shaft (not shown), and the drive shaft is configured to be rotated by outputs of a motor and a speed reducer (not shown).
  • the inclination of the light receiving unit 9 is changed by the rotation of the shaft 408.
  • the first shaft 407 is provided horizontally and the second shaft 408 is supported by the frame 304, so that the light receiving unit 9 can be provided immediately above the base unit 402. Therefore, the area of the light receiving unit 9 can be increased.
  • first transmission units 10, 110, 210, the second transmission units 20, 120, 220, and the transmission unit 310 are configured by worm gears.
  • present invention is not necessarily limited thereto.
  • other transmission mechanisms include bevel gears (straight teeth or bent teeth), crown gears, and the like.
  • the second shafts 308 and 408 are orthogonal to the first shaft 7 and 407.
  • each axis is not necessarily limited to this, and it is naturally possible to make each axis obliquely cross at an angle other than orthogonal.
  • the bevel angular is used for the first transmission unit 10, 110, 210, the second transmission unit 20, 120, 220 and the transmission unit 310. Transmission can be made possible.
  • the one-way clutch (the first one-way clutch 11, 121, 211, the second one-way clutch 221 and the one-way clutch 311) is a sprag type has been described, but the present invention is not necessarily limited to this. Of course, it is possible to employ one-way clutches such as a roller type and a ratchet type.
  • the case where the first shaft 7 is arranged in the vertical direction (substantially orthogonal to the ground) and the case where the first shaft 407 is arranged in the horizontal direction (substantially parallel to the ground) are described.
  • the inclination of the light receiving unit 9 can be changed by linking the first shafts 7 and 407 and the second shafts 8, 308, and 408.
  • the motor 4 when correcting the inclination of the light receiving unit 9, the motor 4 is first rotated in the direction in which the first one-way clutch 11, 121, 211 or the one-way clutch 311 is locked, and then the first one-way.
  • the motor 4 is rotated in a direction in which the clutch 11, 121, 211 or the one-way clutch 311 is free
  • the present invention is not necessarily limited thereto.
  • the motor 4 is rotated in such a direction that the first one-way clutch 11, 121, 211 or the one-way clutch 311 becomes free, and then the motor 4 in a direction in which the first one-way clutch 11, 121, 211 or the one-way clutch 311 is locked. It is of course possible to correct the inclination of the light receiving unit 9 by rotating. This is because the same effect can be realized regardless of the order of rotation of the motor 4.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

La présente invention concerne un dispositif de poursuite du soleil dans lequel le nombre de dispositifs de réduction et de moteurs peut être réduit, la réduction de la taille et la réduction du poids sont possibles, et les coûts de production peuvent être réduits. La rotation d'un moteur (4) dans une direction est transférée à un arbre d'entraînement (6) à partir d'un dispositif de réduction (5), et la rotation est transférée dans une première partie de transfert (10) et une seconde partie de transfert (20). La rotation est transférée sur un premier arbre (7) par un premier embrayage unidirectionnel (11) pour la première partie de transfert (10) ; par conséquent, le premier arbre (7) est au moins amené en rotation en fonction de l'azimut ou de l'altitude du soleil. D'autre part, si la rotation du moteur (4) dans l'autre direction est transférée sur l'axe d'entraînement (6), le transfert de la rotation sur le premier arbre (7) est interrompu par le premier embrayage unidirectionnel (11) et une seconde partie de transfert (20) transfère la rotation sur un second arbre (8). Ainsi, sans faire tourner le premier arbre (7), le second arbre (8) peut être amené en rotation. En conséquence, l'inclinaison d'une partie de réception de lumière (9) peut être modifiée librement.
PCT/JP2012/065115 2011-06-29 2012-06-13 Dispositif de poursuite du soleil WO2013002027A1 (fr)

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JP2011-143865 2011-06-29
JP2011143865A JP5209761B2 (ja) 2011-06-29 2011-06-29 太陽追尾装置

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WO2013002027A1 true WO2013002027A1 (fr) 2013-01-03

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Cited By (5)

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JP2015056436A (ja) * 2013-09-10 2015-03-23 株式会社ＳｏｌａｒＦｌａｍｅ 太陽光集光発電装置
EP3045838A4 (fr) * 2013-09-10 2017-10-11 SolarFlame Corporation Dispositif d'héliostat, dispositif de collecte thermique solaire, et dispositif photovoltaïque de concentration solaire
WO2018149991A1 (fr) 2017-02-17 2018-08-23 Galderma Research & Development Dérivés sulfonamides hydroxylés en tant qu'agonistes inverses du récepteur gamma orphelin associé aux rétinoïdes ror gamma (t)
JP2020198746A (ja) * 2019-06-05 2020-12-10 勝美 衛藤 太陽光発電装置
WO2022174363A1 (fr) 2021-02-17 2022-08-25 Huawei Technologies Co., Ltd. Égalisation mimo avec mise à jour de coefficients pondérés

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JP2015118360A (ja) * 2013-11-18 2015-06-25 株式会社ＳｏｌａｒＦｌａｍｅ ヘリオスタット装置ならびに太陽熱集熱装置および太陽光集光発電装置
JP2016018205A (ja) * 2014-07-11 2016-02-01 株式会社ＳｏｌａｒＦｌａｍｅ 反射鏡およびヘリオスタット装置ならびに太陽熱集熱装置および太陽光集光発電装置
JP6492458B2 (ja) * 2014-08-25 2019-04-03 住友電気工業株式会社 太陽光発電システム及びパネル洗浄方法

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JP2000150943A (ja) * 1998-11-05 2000-05-30 Koji Hashimoto 太陽追尾装置および太陽追尾方法
JP2001127330A (ja) * 1999-10-29 2001-05-11 Hiroisa Koizumi 太陽光集光システム
JP2002252365A (ja) * 2001-02-26 2002-09-06 Daido Steel Co Ltd 太陽光追尾装置
JP2004146760A (ja) * 2002-10-27 2004-05-20 Teijiro Yamamoto 差電圧駆動式太陽追尾ソーラー発電装置
US20090114267A1 (en) * 2007-11-06 2009-05-07 Thompson Bruce A Clock operated step function solar tracker
JP2010258369A (ja) * 2009-04-28 2010-11-11 Mitsubishi Electric Corp 太陽光追尾機構制御装置、太陽光追尾装置及び太陽光発電システム
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015056436A (ja) * 2013-09-10 2015-03-23 株式会社ＳｏｌａｒＦｌａｍｅ 太陽光集光発電装置
EP3045838A4 (fr) * 2013-09-10 2017-10-11 SolarFlame Corporation Dispositif d'héliostat, dispositif de collecte thermique solaire, et dispositif photovoltaïque de concentration solaire
US10008977B2 (en) 2013-09-10 2018-06-26 Solarflame Corporation Heliostat apparatus and solar heat collecting apparatus and concentrating photovoltaic apparatus
WO2018149991A1 (fr) 2017-02-17 2018-08-23 Galderma Research & Development Dérivés sulfonamides hydroxylés en tant qu'agonistes inverses du récepteur gamma orphelin associé aux rétinoïdes ror gamma (t)
JP2020198746A (ja) * 2019-06-05 2020-12-10 勝美 衛藤 太陽光発電装置
JP7252063B2 (ja) 2019-06-05 2023-04-04 勝美 衛藤 太陽光発電装置
WO2022174363A1 (fr) 2021-02-17 2022-08-25 Huawei Technologies Co., Ltd. Égalisation mimo avec mise à jour de coefficients pondérés

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