CN111917366A - Photovoltaic support and photovoltaic system day by day - Google Patents
Photovoltaic support and photovoltaic system day by day Download PDFInfo
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- CN111917366A CN111917366A CN202010887470.XA CN202010887470A CN111917366A CN 111917366 A CN111917366 A CN 111917366A CN 202010887470 A CN202010887470 A CN 202010887470A CN 111917366 A CN111917366 A CN 111917366A
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- 238000010248 power generation Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 4
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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
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
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- 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
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Abstract
The invention relates to the technical field of photovoltaic power generation, and particularly discloses a day-by-day photovoltaic support and a photovoltaic system. The sun-tracking photovoltaic support comprises a first support fixedly arranged, a middle shaft part is arranged on the first support, a second support is arranged on the middle shaft part, a photovoltaic assembly is fixedly arranged on the outer side of the second support, a first ratchet mechanism and a second ratchet mechanism are arranged in the second support along the length direction of the second support, a first clutch mechanism is arranged between the first ratchet mechanism and the second support, a second clutch mechanism is arranged between the second ratchet mechanism and the second support, a controller is arranged on the second support, and the first clutch mechanism and the second clutch mechanism are respectively connected with the controller. The sun-tracking photovoltaic support is simple in structure, low in energy consumption cost, capable of achieving unmanned adjustment operation and capable of improving operation convenience.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a day-by-day photovoltaic support and a photovoltaic system.
Background
The photovoltaic power generation technology is a technology for directly converting light energy into electric energy by utilizing a photovoltaic effect generated by a semiconductor, and compared with the traditional energy, the photovoltaic power generation technology has the advantages of inexhaustible solar energy, sufficient cleanness, absolute safety, resource sufficiency and the like, and has an absolutely important meaning in a long-term energy strategy. The photovoltaic module has a generating efficiency related to the incident angle of sunlight, and the generating efficiency is the highest within a specific incident angle range, and the more deviated from the incident angle, the lower the generating efficiency.
However, the current photovoltaic bracket for mounting the photovoltaic module is generally fixed in angle, and generally faces the south to obtain the power generation angle under the strongest illumination intensity, but the illumination in the sunset of east-rising-west cannot be effectively utilized. The prior art also has a photovoltaic bracket capable of tracking the track of the sun, generally, a motor is directly used for gradually driving the photovoltaic bracket to rotate, the structure is complex, the electricity consumption cost is high, and the loss is not paid; in addition, the photovoltaic support is intermittently driven to deflect by manpower, but the operation frequency depends on the manual on-site debugging time, so that the operation is inconvenient.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a day-by-day photovoltaic support, which has a simplified structure and low energy consumption cost, and can implement unmanned adjustment operation, thereby improving operation convenience.
Another object of the embodiments of the present invention is to provide a photovoltaic system, which does not depend on manual debugging operation to intermittently drive the deflection of the photovoltaic support, and has the advantages of convenient operation and low construction cost.
To achieve the purpose, the embodiment of the invention adopts the following technical scheme:
the first aspect provides a day-by-day photovoltaic support, which comprises a first support fixedly arranged, wherein a middle shaft part is arranged on the first support, a second support is arranged on the middle shaft part, a photovoltaic module is fixedly arranged on the outer side of the second support, the second support can rotate around the central axis of the middle shaft part, a first ratchet mechanism and a second ratchet mechanism are arranged in the second support along the length direction of the second support, the first ratchet mechanism and the second ratchet mechanism can rotate relative to the second support, the first ratchet mechanism can rotate around the central axis of the middle shaft part along a first direction, the second ratchet mechanism can rotate around the central axis of the middle shaft part along a second direction, the first direction and the second direction are opposite, and a first clutch mechanism is arranged between the first ratchet mechanism and the second support, the second ratchet mechanism with be provided with second clutching mechanism between the second support, be provided with the controller on the second support, first clutching mechanism with second clutching mechanism connects respectively the controller, first clutching mechanism is used for the restriction first ratchet mechanism with the rotation of second support, second clutching mechanism is used for the restriction second ratchet mechanism with the rotation of second support.
As a preferable scheme of the day-by-day photovoltaic bracket, the first ratchet mechanism includes a first ratchet movably disposed on the middle shaft portion, and a first pawl fixedly disposed on the middle shaft portion, the first pawl is capable of enabling the first ratchet to rotate in a single direction, and the second ratchet mechanism includes a second ratchet movably disposed on the middle shaft portion, and a second pawl fixedly disposed on the middle shaft portion, the second pawl is capable of enabling the second ratchet to rotate in a single direction.
As a preferable scheme of the day-by-day photovoltaic support, a first driving portion is arranged between the first pawl and the middle shaft portion, a second driving portion is arranged between the second pawl and the middle shaft portion, the first driving portion and the second driving portion are in communication connection with the controller, the first driving portion is used for driving the first pawl to approach or separate from the first ratchet wheel, and the second driving portion is used for driving the second pawl to approach or separate from the second ratchet wheel.
As a preferred scheme of the day-by-day photovoltaic support, the first clutch mechanism comprises a first clutch seat arranged on the first ratchet wheel, a third driving part is arranged on the second support and faces towards one side of the first clutch seat, the second clutch mechanism comprises a second clutch seat arranged on the second ratchet wheel, a fourth driving part is arranged on the second support and faces towards one side of the second clutch seat, the third driving part and the fourth driving part are in communication connection with the controller, a first clutch block is arranged on the third driving part, a second clutch block is arranged on the fourth driving part, the third driving part can drive the first clutch block to be close to or far away from the first clutch seat, and the fourth driving part can drive the second clutch block to be close to or far away from the second clutch seat.
As a preferred scheme of photovoltaic support day by day, be provided with first bellying on the first separation and reunion seat, be provided with on the first separation and reunion piece and correspond the first depressed part of first bellying shape, first bellying protrusion set up in the recess of first depressed part, be provided with the second bellying on the second separation and reunion seat, be provided with on the second separation and reunion piece and correspond the second depressed part of second bellying shape, the second bellying protrusion set up in the recess of second depressed part.
As a preferable scheme of the day-by-day photovoltaic support, a limiting block is arranged between the second support and the first support, and the limiting block is used for limiting the rotation angle and the axial displacement of the second support relative to the first support.
As a preferable scheme of the day-by-day photovoltaic support, a first bearing is arranged between the first ratchet mechanism and the second support, and a second bearing is arranged between the second ratchet mechanism and the second support.
As a preferable mode of the photovoltaic support day by day, the axial direction of the middle shaft portion makes an acute angle with the horizon.
As a preferable scheme of the day-by-day photovoltaic bracket, an angle sensor is arranged between the second bracket and the middle shaft part, and the angle sensor is in communication connection with the controller.
In a second aspect, a photovoltaic system is provided, which includes a photovoltaic module and the day-by-day photovoltaic support, wherein the photovoltaic module is disposed on a second support of the day-by-day photovoltaic support.
The embodiment of the invention has the beneficial effects that:
through fixed first support that sets up, be provided with well axial region on first support, be provided with the second support on well axial region, the fixed photovoltaic module that is provided with in the outside of second support, the second support can rotate around the central axis of well axial region for photovoltaic module can rotate first support relatively. The first ratchet mechanism and the second ratchet mechanism are arranged in the second support along the length direction of the second support, the first ratchet mechanism and the second ratchet mechanism can rotate relative to the second support, the first ratchet mechanism can rotate around the central axis of the middle shaft part along the first direction, the second ratchet mechanism can rotate around the central axis of the middle shaft part along the second direction, and the first direction is opposite to the second direction. In addition, a first clutch mechanism is arranged between the first ratchet mechanism and the second support, a second clutch mechanism is arranged between the second ratchet mechanism and the second support, a controller is arranged on the second support, the first clutch mechanism and the second clutch mechanism are respectively connected with the controller, the first clutch mechanism is used for limiting the rotation of the first ratchet mechanism and the second support, and the second clutch mechanism is used for limiting the rotation of the second ratchet mechanism and the second support. When the photovoltaic module is blown by wind, the first clutch mechanism is driven to limit the rotation of the first ratchet mechanism and the second support, so that the photovoltaic module can only rotate along a first direction relative to the first support through the first ratchet mechanism; or the second clutch mechanism can limit the rotation of the second ratchet mechanism and the second support, so that the photovoltaic module can only rotate along the second direction relative to the first support through the second ratchet mechanism; or when the first clutch mechanism and the second clutch mechanism are both actuated and the first ratchet mechanism and the second ratchet mechanism are both limited to rotate, the photovoltaic module stops rotating relative to the first support. According to the embodiment of the invention, the end part of the middle shaft part of the sun-by-sun photovoltaic support can be arranged to face the north-south direction, so that the photovoltaic module can be driven by wind energy to rotate in a single direction from east to west or rotate in a single direction from west to east, the structure is simplified, the energy consumption cost is low, the photovoltaic support is intermittently driven to deflect without depending on manual debugging operation, unmanned adjustment operation can be realized, and the operation convenience is improved.
Drawings
The invention is explained in more detail below with reference to the figures and examples.
Fig. 1 is a schematic cross-sectional structure view of a photovoltaic support provided in an embodiment of the present invention day by day.
Fig. 2 is a schematic partial structural view of a photovoltaic support according to another embodiment of the present invention.
Fig. 3 is a schematic partial structural view of a photovoltaic support according to yet another embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a photovoltaic system according to still another embodiment of the present invention.
In the figure:
1. photovoltaic supports day by day; 11. a first bracket; 111. a middle shaft portion; 12. a second bracket; 121. a first ratchet mechanism; 1211. a first ratchet wheel; 1212. a first pawl; 1213. a first driving section; 122. a second ratchet mechanism; 1221. a second ratchet wheel; 1222. a second pawl; 1223. a second driving section; 13. a first clutch mechanism; 131. a first clutch seat; 1311. a first boss portion; 132. a third driving section; 133. a first clutch block; 1331. a first recess; 14. a second clutch mechanism; 141. a second clutch seat; 1411. a second boss portion; 142. a fourth driving section; 143. a second clutch block; 1431. a second recess; 15. a controller; 16. a limiting block; 17. a first bearing; 18. a second bearing; 19. an angle sensor; 2. provided is a photovoltaic module.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, an embodiment of the present invention provides a day-by-day photovoltaic support 1, including a first support 11 fixedly disposed, a middle shaft 111 is disposed on the first support 11, a second support 12 is disposed on the middle shaft 111, a photovoltaic module 2 is fixedly disposed on an outer side of the second support 12, the second support 12 is capable of rotating around a central axis of the middle shaft 111, a first ratchet mechanism 121 and a second ratchet mechanism 122 are disposed in the second support 12 along a length direction thereof, both the first ratchet mechanism 121 and the second ratchet mechanism 122 are capable of rotating relative to the second support 12, the first ratchet mechanism 121 is capable of rotating around the central axis of the middle shaft 111 along a first direction, the second ratchet mechanism 122 is capable of rotating around the central axis of the middle shaft 111 along a second direction, the first direction is opposite to the second direction, a first clutch mechanism 13 is disposed between the first ratchet mechanism 121 and the second support 12, a second clutch mechanism 14 is disposed between the second ratchet mechanism 122 and the second support 12, the controller 15 is arranged on the second bracket 12, the first clutch mechanism 13 and the second clutch mechanism 14 are respectively connected with the controller 15, the first clutch mechanism 13 is used for limiting the rotation of the first ratchet mechanism 121 and the second bracket 12, and the second clutch mechanism 14 is used for limiting the rotation of the second ratchet mechanism 122 and the second bracket 12.
According to the embodiment of the invention, the first bracket 11 is fixedly arranged, the middle shaft part 111 is arranged on the first bracket 11, the second bracket 12 is arranged on the middle shaft part 111, the photovoltaic module 2 is fixedly arranged on the outer side of the second bracket 12, and the second bracket 12 can rotate around the central axis of the middle shaft part 111, so that the photovoltaic module 2 can rotate relative to the first bracket 11. A first ratchet mechanism 121 and a second ratchet mechanism 122 are arranged in the second bracket 12 along the length direction of the second bracket, the first ratchet mechanism 121 and the second ratchet mechanism 122 can both rotate relative to the second bracket 12, the first ratchet mechanism 121 can rotate around the central axis of the middle shaft part 111 along a first direction, the second ratchet mechanism 122 can rotate around the central axis of the middle shaft part 111 along a second direction, and the first direction and the second direction are opposite. In addition, a first clutch mechanism 13 is arranged between the first ratchet mechanism 121 and the second support 12, a second clutch mechanism 14 is arranged between the second ratchet mechanism 122 and the second support 12, a controller 15 is arranged on the second support 12, the first clutch mechanism 13 and the second clutch mechanism 14 are respectively connected with the controller 15, the first clutch mechanism 13 is used for limiting the rotation of the first ratchet mechanism 121 and the second support 12, and the second clutch mechanism 14 is used for limiting the rotation of the second ratchet mechanism 122 and the second support 12. When the photovoltaic module 2 is blown by wind, the rotation of the first ratchet mechanism 121 and the second bracket 12 can be limited by driving the first clutch mechanism 13, so that the photovoltaic module 2 can only rotate in a first direction relative to the first bracket 11 through the first ratchet mechanism 121; alternatively, the second clutch mechanism 14 can limit the rotation of the second ratchet mechanism 122 and the second bracket 12, so that the photovoltaic module 2 can only rotate in the second direction relative to the first bracket 11 through the second ratchet mechanism 122; alternatively, when both the first clutch mechanism 13 and the second clutch mechanism 14 are actuated and both the first ratchet mechanism 121 and the second ratchet mechanism 122 are restricted from rotating, the photovoltaic module 2 stops rotating relative to the first support 11. According to the embodiment of the invention, the end part of the middle shaft part 111 of the sun-tracking photovoltaic support 1 can be arranged to face the north-south direction, so that the photovoltaic module 2 can be driven by wind energy to rotate from east to west in a single direction or rotate from west to east in a single direction, the structure is simplified, the energy consumption cost is low, the photovoltaic support is intermittently driven to deflect without depending on manual debugging operation, unmanned adjusting operation can be realized, and the operation convenience is improved.
The first bracket 11 of this embodiment may be fixedly disposed on the ground, or may be fixedly disposed on a wall surface or a water surface, and is provided with a corresponding fixing structure according to different attachment carriers, which is determined according to the actual construction requirements, and this embodiment is not particularly limited.
Further, with continued reference to fig. 1, the first ratchet mechanism 121 according to the embodiment of the present invention includes a first ratchet 1211 movably disposed on the middle shaft portion 111, and a first pawl 1212 fixedly disposed on the middle shaft portion 111, the first pawl 1212 enabling the first ratchet 1211 to rotate in a single direction, the second ratchet mechanism 122 includes a second ratchet 1221 movably disposed on the middle shaft portion 111, and a second pawl 1222 fixedly disposed on the middle shaft portion 111, the second pawl 1222 enabling the second ratchet 1221 to rotate in a single direction. In the present embodiment, the paired first ratchet 1211 and first pawl 1212 and second ratchet 1221 and second pawl 1222 achieve the effect of rotating the first ratchet 1211 in one direction relative to the middle shaft portion 111 or rotating the second ratchet 1221 in one direction relative to the middle shaft portion 111.
Still further, with continued reference to fig. 1, a first driving portion 1213 is disposed between the first pawl 1212 and the middle shaft portion 111, a second driving portion 1223 is disposed between the second pawl 1222 and the middle shaft portion 111, the first driving portion 1213 and the second driving portion 1223 are communicatively connected to the controller 15, the first driving portion 1213 is configured to drive the first pawl 1212 toward or away from the first ratchet 1211, and the second driving portion 1223 is configured to drive the second pawl 1222 toward or away from the second ratchet 1221. In this embodiment, by controlling the actions of the first driving unit 1213 and the second driving unit 1223, the positional relationship of the first pawl 1212 with respect to the first ratchet 1211 and the positional relationship of the second pawl 1222 with respect to the second ratchet 1221 can be controlled, so as to control the unidirectional rotation or the bidirectional rotation of the first ratchet 1211 and the unidirectional rotation or the bidirectional rotation of the second ratchet 1221, respectively, and the deflection angle of the second bracket 12 with respect to the first bracket 11 can be reset when the first ratchet 1211 rotates bidirectionally and the second ratchet 1221 rotates bidirectionally.
In particular, referring to fig. 1 and 2, in the first ratchet mechanism 121, a side surface of the first ratchet 1211, which is close to the middle shaft portion 111, is concavely provided with a tooth cavity, and teeth corresponding to the first pawls 1212 are provided on the tooth cavity, so that the first pawls 1212 on the middle shaft portion 111 can directly contact with the teeth of the first ratchet 1211, which has the effect of saving the occupied space volume of the first ratchet mechanism 121. Similarly, the second ratchet mechanism 122 can be configured with a similar structure to achieve the same effect of saving occupied space volume, and the description of this embodiment is omitted.
In another embodiment, the first clutch mechanism 13 includes a first clutch seat 131 disposed on the first ratchet 1211, a third driving portion 132 is disposed on the second bracket 12 on a side facing the first clutch seat 131, the second clutch mechanism 14 includes a second clutch seat 141 disposed on the second ratchet 1221, a fourth driving portion 142 is disposed on the second bracket 12 on a side facing the second clutch seat 141, the third driving portion 132 and the fourth driving portion 142 are in communication with the controller 15, a first clutch block 133 is disposed on the third driving portion 132, a second clutch block 143 is disposed on the fourth driving portion 142, the third driving portion 132 can drive the first clutch block 133 to approach or separate from the first clutch seat 131, and the fourth driving portion 142 can drive the second clutch block 143 to approach or separate from the second clutch seat 141. In the embodiment, the distance between the first clutch piece 133 and the first clutch seat 131 is adjusted by the third driving portion 132, and when the first clutch piece 133 approaches the first clutch seat 131 and the second clutch piece 143 is far away from the second clutch seat 141, the first ratchet 1211 on which the first clutch piece 133 is located and the second bracket 12 on which the first clutch seat 131 is located are relatively fixed, so that the first ratchet mechanism 121 can limit the second bracket 12 from rotating in the first direction relative to the first bracket 11. Similarly, when the first clutch piece 133 is far away from the first clutch seat 131 and the second clutch piece 143 is close to the second clutch seat 141, the second ratchet 1221 on which the second clutch piece 143 is located is fixed relative to the second bracket 12 on which the second clutch seat 141 is located, so that the second ratchet mechanism 122 can limit the second bracket 12 from rotating in the second direction relative to the first bracket 11. When the first clutch piece 133 is far away from the first clutch seat 131 and the second clutch piece 143 is far away from the second clutch seat 141, the second bracket 12 can rotate bidirectionally relative to the first bracket 11, and conversely, when the first clutch piece 133 is close to the first clutch seat 131 and the second clutch piece 143 is close to the second clutch seat 141, the second bracket 12 is fixed relative to the first bracket 11. Therefore, when the operation and maintenance personnel are present, the relative rotation angle between the second bracket 12 and the first bracket 11 can be adjusted automatically by adjusting the relative movement relationship between the first bracket 11 and the second bracket 12, for example, the initial orientation position of the photovoltaic module 2 is set, so that the sunlight can be directly irradiated.
Preferably, the first driving unit 1213, the second driving unit 1223, the third driving unit 132 or the fourth driving unit 142 of the embodiment of the present invention may be a connection between a driving motor and a hydraulic transmission rod, or a connection between a driving motor and a screw transmission rod, and the embodiment is not particularly limited.
The engaging and connecting relationship between the first clutch seat 131 and the first clutch block 133 is various, for example, a rubber layer is disposed between the first clutch seat 131 and the first clutch block 133, and the engaging and connecting relationship between the second clutch seat 141 and the second clutch block 143 may be the same. Preferably, with continued reference to fig. 1, a first protrusion 1311 is disposed on the first clutch seat 131, a first recess 1331 corresponding to the shape of the first protrusion 1311 is disposed on the first clutch block 133, the first protrusion 1311 is convexly disposed in a groove of the first recess 1331, a second protrusion 1411 is disposed on the second clutch seat 141, a second recess 1431 corresponding to the shape of the second protrusion 1411 is disposed on the second clutch block 143, and the second protrusion 1411 is convexly disposed in a groove of the second recess 1431. In the present embodiment, by providing the first protruding portion 1311 and the first recessed portion 1331, the contact area between the first clutch seat 131 and the first clutch block 133 can be increased, so as to increase the clutch effect of the first clutch mechanism 13. Similarly, the second clutch mechanism 14 can also be provided with the second protrusion 1411 and the second recess 1431 to achieve the same effect.
In another embodiment, referring to fig. 3, a limiting block 16 is disposed between the second bracket 12 and the first bracket 11, the limiting blocks 16 may be disposed on the first bracket 11 and the second bracket 12, the limiting block 16 of this embodiment is used to limit a rotation angle and an axial displacement of the second bracket 12 relative to the first bracket 11, for example, the limiting blocks 16 are disposed on two end surfaces of the middle shaft portion 111 close to the second bracket 12 and can limit an axial displacement of the second bracket 12 relative to the first bracket 11, another limiting block 16 is disposed on an end surface of the second bracket 12, the limiting block 16 on the middle shaft portion 111 and the limiting block 16 on the second bracket 12 are used to limit a rotation angle of the second bracket 12 about a central axis of the middle shaft portion 111, other specific setting positions and setting numbers are determined according to actual requirements, and this embodiment is not particularly limited.
In addition, referring to fig. 1, a first bearing 17 is disposed between the first ratchet mechanism 121 and the second bracket 12, and a second bearing 18 is disposed between the second ratchet mechanism 122 and the second bracket 12. By utilizing the characteristics that the bearings can fix two components directly connected with the first ratchet mechanism and can reduce the load friction coefficient, the first ratchet mechanism 121 can realize smoother two-way rotation with the second bracket 12 through the first bearing 17, and the relative position of the first ratchet mechanism 121 and the second bracket 12 in the axial direction can be fixed through the first bearing 17. Similarly, the second bearing 18 disposed between the second ratchet mechanism 122 and the second bracket 12 can achieve the same effect, and the description of this embodiment is omitted.
Preferably, the first bearing 17 or the second bearing 18 according to the embodiment of the present invention may be a deep groove ball bearing, which mainly bears a radial load and can bear both a radial load and an axial load. When it is subjected to only radial loads, the contact angle is zero. When the deep groove ball bearing has larger radial play, the deep groove ball bearing has the performance of an angular contact bearing, can bear larger axial load, and has smaller friction coefficient and higher limit rotating speed. The smooth rotation of the first ratchet mechanism 121 and the second support 12 or the smooth rotation of the second ratchet mechanism 122 and the second support 12 can be ensured, and the structural strength and the connection strength of the first ratchet mechanism 121 and the second support 12 or the structural strength and the connection strength of the second ratchet mechanism 122 and the second support 12 can also be improved.
The sunlight is direct light, and the incident angle of the sunlight to the earth surface is different at different times of the year, for example, the incident angle of the sunlight to the earth surface (hereinafter referred to as the earth surface incident angle) is the smallest in winter, the earth surface incident angle is an acute angle, and the earth surface incident angle is a right angle in summer to noon. In addition, the power generation efficiency of the photovoltaic module 2 is inversely related to the incident angle of sunlight on the surface of the photovoltaic module 2 (the included angle between the sunlight and the normal line of the surface of the photovoltaic module 2, hereinafter referred to as the photovoltaic incident angle), and the larger the photovoltaic incident angle of sunlight on the surface of the photovoltaic module 2 is, the less the amount of solar normal radiation received by the photovoltaic module 2 is, so that the power generation efficiency of the photovoltaic module 2 is reduced even lower than the starting radiation amount and the power generation is stopped. In one embodiment, referring to fig. 4, the axial direction of the middle shaft portion 111 is arranged to form an acute angle with the horizontal line, so that the photovoltaic module 2 can be ensured to be within the range of the photovoltaic incident angle all year round, and the normal operation of the photovoltaic module 2 can be ensured. In addition, when rainy and snowy weather, the rainwater and the snow on the photovoltaic module 2 can slide down along the inclined slope, so that the bearing pressure on the photovoltaic module 2 is reduced, the service life of the photovoltaic module 2 is prolonged, and the power generation effect of the photovoltaic module 2 is further improved.
The photovoltaic module 2 has an optimal inclination angle (i.e. an acute angle formed by the axial direction of the shaft portion 111 and the horizon in this embodiment) in different longitude and latitude areas, and the corresponding optimal inclination angle may be set according to the different longitude and latitude areas, which is not specifically limited in this embodiment.
In particular, referring to fig. 3, an angle sensor 19 is disposed between the second bracket 12 and the middle shaft portion 111, and the angle sensor 19 is in communication with the controller 15. The relative angle of the second carrier 12 with respect to the first carrier 11 is detected by the angle sensor 19, and the controller 15 controls the operations of the first and second clutch mechanisms 13 and 14 and the first and second ratchet mechanisms 121 and 122 according to the detected relative angle. Compared with the case where the photovoltaic module 2 is arranged to rotate from east to west by a predetermined angle every hour, the unidirectional rotation of the second support 12 from east to west relative to the first support 11 is limited by controlling the actions of the first clutch mechanism 13 and the second clutch mechanism 14 and the first ratchet mechanism 121 and the second ratchet mechanism 122, and the rotation of the second support 12 on the first support 11 can be limited and fixed when the predetermined angle is exceeded, so that the deflection angle of the photovoltaic support 1 of the embodiment of the invention is more accurate day by day.
Referring to fig. 4, an embodiment of the present invention further provides a photovoltaic system, which includes a photovoltaic module 2, and the day-by-day photovoltaic support 1 of any of the above embodiments, where the photovoltaic module 2 is disposed on the second support 12 of the day-by-day photovoltaic support 1. The sun-tracking photovoltaic support 1 in this embodiment may have the same structure and achieve the same effect as the sun-tracking photovoltaic support 1 in the above embodiments, and this embodiment is not described again.
In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or a positional relationship based on the orientation shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used merely for descriptive purposes and are not intended to have any special meaning.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A sun-chasing photovoltaic support is characterized by comprising a first support which is fixedly arranged, wherein a middle shaft part is arranged on the first support, a second support is arranged on the middle shaft part, a photovoltaic module is fixedly arranged on the outer side of the second support, the second support can rotate around the central axis of the middle shaft part, a first ratchet mechanism and a second ratchet mechanism are arranged in the second support along the length direction of the second support, the first ratchet mechanism and the second ratchet mechanism can rotate relative to the second support, the first ratchet mechanism can rotate around the central axis of the middle shaft part along a first direction, the second ratchet mechanism can rotate around the central axis of the middle shaft part along a second direction, the first direction and the second direction are opposite, and a first clutch mechanism is arranged between the first ratchet mechanism and the second support, the second ratchet mechanism with be provided with second clutching mechanism between the second support, be provided with the controller on the second support, first clutching mechanism with second clutching mechanism connects respectively the controller, first clutching mechanism is used for the restriction first ratchet mechanism with the rotation of second support, second clutching mechanism is used for the restriction second ratchet mechanism with the rotation of second support.
2. The day-by-day photovoltaic rack of claim 1, wherein the first ratchet mechanism comprises a first ratchet movably disposed on the middle shaft portion and a first pawl fixedly disposed on the middle shaft portion, the first pawl being capable of unidirectional rotation of the first ratchet, and the second ratchet mechanism comprises a second ratchet movably disposed on the middle shaft portion and a second pawl fixedly disposed on the middle shaft portion, the second pawl being capable of unidirectional rotation of the second ratchet.
3. The day-by-day photovoltaic bracket according to claim 2, wherein a first driving portion is arranged between the first pawl and the middle shaft portion, a second driving portion is arranged between the second pawl and the middle shaft portion, the first driving portion and the second driving portion are in communication connection with the controller, the first driving portion is used for driving the first pawl to approach or separate from the first ratchet wheel, and the second driving portion is used for driving the second pawl to approach or separate from the second ratchet wheel.
4. The day-by-day photovoltaic rack of claim 1, wherein the first clutch mechanism comprises a first clutch seat disposed on the first ratchet, a third driving part is arranged on one side of the second bracket facing the first clutch seat, the second clutch mechanism comprises a second clutch seat arranged on the second ratchet wheel, a fourth driving part is arranged on one side of the second bracket facing the second clutch seat, the third driving part and the fourth driving part are in communication connection with the controller, the third driving part is provided with a first clutch block, the fourth driving part is provided with a second clutch block, the third driving part can drive the first clutch block to approach or depart from the first clutch seat, the fourth driving part can drive the second clutch block to be close to or far away from the second clutch seat.
5. The day-by-day photovoltaic bracket according to claim 4, wherein a first protruding portion is arranged on the first clutch seat, a first recessed portion corresponding to the shape of the first protruding portion is arranged on the first clutch block, the first protruding portion is convexly arranged in a groove of the first recessed portion, a second protruding portion is arranged on the second clutch seat, a second recessed portion corresponding to the shape of the second protruding portion is arranged on the second clutch block, and the second protruding portion is convexly arranged in a groove of the second recessed portion.
6. The day-by-day photovoltaic support according to claim 1, wherein a limiting block is arranged between the second support and the first support, and the limiting block is used for limiting the rotation angle and the axial displacement of the second support relative to the first support.
7. The day-by-day photovoltaic support according to claim 1, wherein a first bearing is disposed between the first ratchet mechanism and the second support, and a second bearing is disposed between the second ratchet mechanism and the second support.
8. The solar-chasing photovoltaic stent of claim 1, wherein the axial direction of the central shaft portion is at an acute angle to the horizon.
9. The day-by-day photovoltaic rack of claim 1, wherein an angle sensor is disposed between the second rack and the middle shaft portion, the angle sensor being in communication with the controller.
10. A photovoltaic system comprising a photovoltaic module and the solar-to-solar photovoltaic support of any one of claims 1 to 9, said photovoltaic module being disposed on a second support of said solar-to-solar photovoltaic support.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010887470.XA CN111917366A (en) | 2020-08-28 | 2020-08-28 | Photovoltaic support and photovoltaic system day by day |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010887470.XA CN111917366A (en) | 2020-08-28 | 2020-08-28 | Photovoltaic support and photovoltaic system day by day |
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| CN111917366A true CN111917366A (en) | 2020-11-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269126A (en) * | 2018-10-25 | 2019-01-25 | 江苏桑力太阳能产业有限公司 | A kind of sweeping robot and operating method of all-weather solar-energy water-heater absorbing pipe |
| CN209358476U (en) * | 2018-11-05 | 2019-09-06 | 天津创盛新能源科技有限公司 | A kind of photovoltaic bracket of adjustable inclination |
| CN212324047U (en) * | 2020-08-28 | 2021-01-08 | 九州能源有限公司 | Photovoltaic support and photovoltaic system day by day |
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2020
- 2020-08-28 CN CN202010887470.XA patent/CN111917366A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269126A (en) * | 2018-10-25 | 2019-01-25 | 江苏桑力太阳能产业有限公司 | A kind of sweeping robot and operating method of all-weather solar-energy water-heater absorbing pipe |
| CN209358476U (en) * | 2018-11-05 | 2019-09-06 | 天津创盛新能源科技有限公司 | A kind of photovoltaic bracket of adjustable inclination |
| CN212324047U (en) * | 2020-08-28 | 2021-01-08 | 九州能源有限公司 | Photovoltaic support and photovoltaic system day by day |
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