CN220673689U

CN220673689U - Folding solar tracking power generation equipment with adjustable angle

Info

Publication number: CN220673689U
Application number: CN202321578583.7U
Authority: CN
Inventors: 何伟; 江清阳; 罗成龙; 胡泓宇; 陈许; 魏继忠; 马瑞; 陈炯光; 陆健
Original assignee: Weineng Smart Energy Co ltd
Current assignee: Weineng Smart Energy Co ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2024-03-26
Anticipated expiration: 2033-06-20

Abstract

The utility model relates to the technical field of angle adjustment of photovoltaic panels, in particular to an angle-adjustable folding solar tracking power generation device, which comprises a base and a first rotating shaft vertically arranged on the base, wherein a second rotating shaft is obliquely arranged on the first rotating shaft; a cantilever end of the second rotating shaft is provided with a third rotating shaft, and a fan-shaped photovoltaic panel is rotatably arranged on the third rotating shaft; each group of photovoltaic plates are sequentially distributed along the axial direction of the third rotating shaft, and can sequentially rotate to be unfolded to form a disc-shaped light receiving surface, and the light receiving surface and a reference surface perpendicular to the axial line of the second rotating shaft are mutually intersected; the utility model can accurately adjust the pitch angle and the rotation angle of the photovoltaic panel, further enable the solar beam to vertically irradiate the photovoltaic panel for a long time, and improve the conversion efficiency of solar energy.

Description

Folding solar tracking power generation equipment with adjustable angle

Technical Field

The utility model relates to the technical field of angle adjustment of photovoltaic panels, in particular to a folding solar tracking power generation device with an adjustable angle.

Background

The most important device for photovoltaic energy storage is an energy storage photovoltaic panel, the energy storage photovoltaic panel can convert absorbed solar energy into electric energy in daytime, the electric energy can be stored by energy storage equipment, and the stored electric energy is converted into alternating current required by a power grid at night to be released. The self-generating and self-using photovoltaic power generation is realized to a certain extent, the power generation efficiency is improved, solar energy can be utilized to convert the solar energy into electric energy, and the power generation and power consumption costs are greatly reduced.

The existing energy storage photovoltaic panel is fixed on the ground through the fixed elevation angle, but the energy storage photovoltaic panel with the fixed angle cannot be directly opposite to the sun all the time in the day due to the east-west falling of the sun, so that the solar energy absorption efficiency can be greatly reduced, and the generated energy is further reduced. In order to solve this problem, the skilled person then usually mounts the photovoltaic panel on an angle-adjusting device whose angle is adjustable with the path of the sun. In the Chinese patent No. 204442248U, a photovoltaic panel angle adjusting device is disclosed, the device comprises a double-T support, the double-T support comprises a transverse plate, the transverse plate is provided with a mounting hole, the mounting hole is provided with a long-strip-shaped adjusting hole, two ends of the mounting hole are in arc transition, the transverse plate is vertically provided with two vertical plates, the two vertical plates are correspondingly provided with fixing holes, a groove is arranged on the outer side of one fixing hole, a tooth-shaped support is arranged between the fixing holes of the two vertical plates, the tooth-shaped support comprises a sleeve at the bottom, the top of the sleeve is provided with a tooth-shaped plate, and the tooth-shaped plate is connected with a tooth-shaped guide rail for supporting the photovoltaic panel. The above-mentioned prior art is widely used because it can rapidly adjust the angle of the photovoltaic panel to absorb more solar energy. But some problems also occur during actual use.

1. Because the photovoltaic panel in the prior art rotates around the rotating shaft at the side of the photovoltaic panel, a structure of a hinge door is formed; when the photovoltaic panel is used in a windless environment, the photovoltaic panel can stably rotate; however, when wind blows, the photovoltaic panel swings in the rotating process; when wind power is large, the rotating shaft can receive large torque, so that the rotating shaft loses the original braking effect, and further the light Fu Banshun swings rapidly in the wind direction, and the photovoltaic panel is damaged due to collision with other structures.

Above-mentioned among the prior art installation photovoltaic power generation panel's support is with its fixed mounting in ground according to the regional illumination condition that is located, and the support can't rotate in order to adjust the orientation of photovoltaic panel after the installation. However, due to the rotation of the earth, the position of the sun is different at different times of the day, and the highest solar energy utilization rate of the photovoltaic power generation panel ensures that the power generation panel is always perpendicular to the illumination direction. However, at present, the support is fixed, and although the pitch angle of the photovoltaic panel can be adjusted, the direction of the photovoltaic panel is offset from the direction of the solar beam due to the movement of the sun, so that the photovoltaic panel cannot always receive illumination to the greatest extent, and therefore, the problem needs to be solved.

Disclosure of Invention

In order to avoid and overcome the technical problems in the prior art, the utility model provides the folding solar tracking power generation equipment with adjustable angle. The utility model can accurately adjust the pitch angle and the rotation angle of the photovoltaic panel, further enable the solar beam to vertically irradiate the photovoltaic panel for a long time, and improve the conversion efficiency of solar energy.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the angle-adjustable folding solar tracking power generation equipment comprises a base and a first rotating shaft vertically arranged on the base, wherein a second rotating shaft is obliquely arranged on the first rotating shaft; a cantilever end of the second rotating shaft is provided with a third rotating shaft, and a fan-shaped photovoltaic panel is rotatably arranged on the third rotating shaft; each group of photovoltaic plates are sequentially distributed along the axial direction of the third rotating shaft, and can sequentially rotate to be unfolded to form a disc-shaped light receiving surface, and the light receiving surface and a reference surface perpendicular to the axial line of the second rotating shaft are mutually intersected.

As still further aspects of the utility model: the photovoltaic panel comprises a swivel and a panel body arranged on the swivel, waist-shaped holes are formed in the annular surface of the swivel, and the hole pattern length directions of the waist-shaped holes are distributed along the circumferential direction of the swivel; a driving pin is arranged on the upper ring surface of the swivel; each group of photovoltaic plates are sequentially and coaxially sleeved on the positioning shaft through a swivel, and the driving pins and the waist-shaped holes on two adjacent photovoltaic plates are mutually spliced; one of the two groups of swivel rings positioned at the outermost sides of the two ends of the positioning shaft is fixedly connected with the positioning shaft, the other group of swivel rings is coaxially and fixedly connected with a driving shaft of the driving motor, and the driving shaft forms a third rotating shaft.

As still further aspects of the utility model: along the direction of the rotatory expansion of photovoltaic board, the afterbody at waist type hole is installed to the driving pin, and after each group photovoltaic board was whole to be expanded, each group driving pin evenly distributed in proper order along the helix that winds the axial extension of locating shaft.

As still further aspects of the utility model: the positioning shaft is a hollow shaft with the axial direction vertically arranged, and the driving motor is arranged in a cavity of the hollow shaft; the driving shaft extends out of the hollow shaft from bottom to top and is fixedly connected with the driving disc coaxially; the lower disc surface of the driving disc is fixedly connected with a swivel positioned at the topmost end of the positioning shaft, and the swivel positioned at the bottommost end of the positioning shaft is fixedly connected with the positioning shaft.

As still further aspects of the utility model: the base is provided with a horizontal bearing with a plumb axial direction, an outer ring of the horizontal bearing is fixedly connected to the base, an inner ring of the horizontal bearing forms the first rotating shaft, and a rotating seat is fixedly connected to the inner ring of the horizontal bearing; a horizontal gear ring is formed on the inner ring of the horizontal bearing, and the inner ring is in transmission connection with a horizontal motor provided with a horizontal gear;

the rotating seat is provided with an inclined bearing, the outer ring of the inclined bearing is fixedly connected to the rotating seat, and the inner ring of the inclined bearing forms the second rotating shaft; a wedge-shaped base is fixedly connected to the inner ring of the inclined bearing, and a positioning shaft is arranged on the wedge-shaped base; an inclined gear ring is formed on the inner ring of the inclined bearing, and the inner ring is in transmission connection with an inclined motor provided with an inclined gear.

As still further aspects of the utility model: the rotating seat is provided with an inclined plane, the wedge-shaped base is provided with a wedge-shaped surface, the inclined plane and the wedge-shaped surface are parallel to each other, and the inclined plane is perpendicular to the axis of the inclined bearing; the inclined surface is concavely provided with an inclined driving cavity, an inclined plate which is arranged in parallel with the inclined surface is fixedly connected in the inclined driving cavity, and the outer ring of the inclined bearing is fixedly connected on the inclined plate; the inclined motor is fixedly arranged in the inclined driving cavity through an inclined fixing rod, and a through hole for the output shaft of the inclined motor to pass through is formed in the inclined plate.

As still further aspects of the utility model: the base comprises a supporting rod and a sleeve coaxially fixedly connected to the top of the supporting rod, the outer ring of the horizontal bearing is fixedly connected to the top of the sleeve, and the horizontal motor is fixedly arranged in the cavity of the sleeve through a horizontal fixing rod.

As still further aspects of the utility model: the bottom of the rotating seat is provided with a horizontal plate, and the inner ring of the horizontal bearing is fixedly connected to the lower plate surface of the horizontal plate.

As still further aspects of the utility model: the wedge-shaped base is a right trapezoid block, the inclined plane of the right trapezoid block forms the wedge-shaped surface, and the receiving surface formed by sequentially expanding each group of photovoltaic plates is parallel to the bottom surface of the right trapezoid block.

As still further aspects of the utility model: the tilt gear and the tilt gear ring are arranged eccentrically to each other, and the horizontal gear ring are arranged eccentrically to each other.

Compared with the prior art, the utility model has the beneficial effects that:

1. the base mounted on the support surface provides a basis for stable operation of the first shaft. The first rotating shaft arranged on the base can adjust the steering direction of the photovoltaic panel, so that the photovoltaic panel faces the sun. The pitching angle of the photovoltaic panel can be adjusted through the second rotating shaft, so that the solar beam vertically irradiates on the light receiving surface, and the conversion efficiency of solar energy is improved. Under the combined action of the first rotating shaft and the second rotating shaft, the solar beam can vertically irradiate on the light receiving surface for a long time, and then the conversion amount of solar energy can be effectively improved. The light receiving surface is not perpendicular to the axis of the second rotating shaft, so that the light receiving surface can be prevented from rotating around the second rotating shaft to do plane rotation, the pitching angle of the light receiving surface can be adjusted through rotation of the second rotating shaft, and the requirement of maximum receiving efficiency is further met. The arrangement of the third rotating shaft can enable each group of photovoltaic panels to be unfolded and tightened, and when the photovoltaic panels are required to be used, the photovoltaic panels are unfolded to form a light receiving surface; in the absence of sunlight, are tightened together. The photovoltaic panels are overlapped together in sequence, so that the exposed area of the photovoltaic panels is reduced, and further, the photovoltaic panels are prevented from being greatly damaged by objects falling from the outside.

2. The core components of the tilt drive assembly and the horizontal drive assembly are bearings, a ring gear, and gears. The bearing is adopted as the rotating member, the inner ring and the outer ring of the bearing are tightly matched with each other, radial and axial shaking cannot be generated in the rotating process, the stability of the wedge-shaped base, the rotating seat and the rotating seat can be improved, the vibration generated by the rotating seat or the wedge-shaped base and the vibration of the photovoltaic panel can be prevented from forming a resonance phenomenon in the rotating process of the photovoltaic panel, the vibration of the photovoltaic panel is further increased, and the photovoltaic panel is bent and damaged.

3. In the matching process of the gear and the gear ring, no matching buffer allowance exists between the gear and the gear ring, the transmission ratio is constant, the matching error between the gear and the gear ring is extremely small, the rotating angle can be precisely controlled, and the accurate rotation angle and pitch angle of the photovoltaic panel are ensured. In the process of rotating fit of the gear and the gear ring, due to constant transmission ratio and extremely small fit error, the gear and the gear ring are stably matched in the rotating process, the generated vibration is small, and the running stability of the whole device is improved.

4. The net-shaped supporting surface formed by the photovoltaic support can reduce the overall mass while meeting the supporting strength, so that the abrasion of the inclined bearing and the horizontal bearing is reduced, and the probability of failure of the device is reduced.

5. The utility model adopts the right trapezoid block as the wedge-shaped base, the inclined plane of the right trapezoid block is used as the wedge-shaped surface, and the photovoltaic panel is fixed at the bottom surface of the right trapezoid block, so that the photovoltaic panel and the ground plane can be kept parallel, and simultaneously can be mutually perpendicular to the ground plane when rotating, the pitch angle variation range of the photovoltaic panel is enlarged, and the application region range can be widened.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic structural view of a wedge-shaped base according to the present utility model.

Fig. 3 is a schematic view of the structure of the rotating base and the inside of the base.

FIG. 4 is a schematic diagram of a disassembled structure of the tilt drive assembly of the present utility model.

Fig. 5 is a schematic diagram of a split structure of a horizontal driving assembly according to the present utility model.

Fig. 6 is a schematic diagram of the mating structure of the photovoltaic panel and the positioning shaft in the present utility model.

Fig. 7 is a schematic structural view of a photovoltaic panel according to the present utility model.

Fig. 8 is a schematic view showing the internal structure of the protective case of the present utility model.

Fig. 9 is a schematic view of the angle fit of the present utility model.

In the figure: 10. a base; 11. a support rod; 12. a sleeve; 13. a protective shell; 14. an inverter; 15. an energy storage battery; 20. a wedge-shaped base; 21. a wedge surface; 22. positioning a shaft; 221. a driving motor; 222. a drive plate; 23. a photovoltaic panel; 231. a plate body; 232. a swivel; 2321. a waist-shaped hole; 2322. a drive pin; 30. a rotating seat; 31. an inclined plane; 32. a sloping plate; 33. a horizontal plate; 40. a tilt drive assembly; 41. an inclined bearing; 42. tilting the gear ring; 43. a bevel gear; 44. a tilting motor; 45. a tilting fixing rod; 50. a horizontal drive assembly; 51. a horizontal bearing; 52. a horizontal gear ring; 53. a horizontal gear; 54. a horizontal motor; 55. a horizontal fixing rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 8, the device mainly includes a base 10, a wedge-shaped base 20, a rotating base 30, a tilt driving assembly 40 and a horizontal driving assembly 50.

The base 10 comprises a supporting rod 11 fixed on the ground, a protective shell 13 is sleeved outside the supporting rod 11, and the supporting rod 11 is arranged at the top end of the protective shell 13. The bottom of the protective housing 13 is fixedly connected with the ground through expansion screws. The support rod 11 is a cylindrical rod structure arranged in the vertical direction, and the rod length thereof needs to be set according to the actual situation. The inverter 14 and the energy storage battery 15 are further installed in the protective shell 13, and the inverter 14, the energy storage battery 15 and the photovoltaic panel 23 are electrically connected through conventional photovoltaic power generation components, so that photovoltaic power generation is stored.

A sleeve 12 is coaxially arranged on top of the support rod 11, the sleeve 12 being of hollow tubular construction. The upper and lower end surfaces of the sleeve 12 are coaxially provided with folded edges which are folded outwards to form a flange structure. The flange structure at the bottom of the sleeve 12 can be fixedly connected with the supporting rod 11 in a welding mode; through holes can be uniformly drilled on the flange along the circumferential direction, and then corresponding through holes are drilled at corresponding positions on the top of the supporting rod 11, and the bolts and nuts are used for fixing.

The swivel base 30 is entirely of a hollow sleeve construction, the interior of which forms the tilt drive chamber, and which is arranged coaxially with the sleeve 12.

A horizontal plate 33 is coaxially arranged in the inclined driving chamber at the bottom of the rotating seat 30, and the horizontal plate 33 and the rotating seat 30 are welded together. The swivel base 30 is in a rotational engagement with the base 10 by a set of horizontal drive assemblies 50.

The horizontal driving assembly 50 includes a horizontal bearing 51 mounted coaxially with the support rod 11. The inner race of the horizontal bearing 51 and the bottom surface of the horizontal plate 33 are fixedly connected to each other. Through holes are formed in the outer ring of the horizontal bearing 51 along the circumferential direction, and then the outer ring is fixedly connected to a flange at the top of the sleeve 12 in a bolt-nut matching mode. A group of horizontal gear rings 52 are coaxially fixed to the inner ring of the horizontal bearing 51. The inner ring and the horizontal gear ring 52 can be fixedly connected together in a welding mode or in a thermal expansion and contraction mode. A horizontal motor 54 is fixedly installed inside the lumen of the sleeve 12 through a horizontal fixing rod 55, and an output shaft of the horizontal motor 54 is arranged in a vertical direction. A horizontal gear 53 is coaxially arranged on the output shaft of the horizontal motor 54, and the horizontal gear 53 is meshed with the horizontal gear ring 52 for transmission; in addition, the horizontal gear 53 and the horizontal gear ring 52 are eccentrically arranged, so that the rotating seat 30 can be driven to rotate by the horizontal motor 54 to adjust the rotation angle of the photovoltaic panel 23.

Beveled on top of the swivel base 30 to form a bevel 31. A sloping plate 32 arranged in parallel with the sloping surface 31 is arranged in the inclined driving cavity, and the sloping plate 32 can be fixed in the inclined driving cavity in a welding mode.

A tilt drive assembly 40 for driving the rotation of the photovoltaic panel 23 is also arranged on the swivel base 30. The tilt drive assembly 40 includes a tilt bearing 41 having an end surface and a bevel 31 of the swivel base 30 arranged parallel to each other. The outer ring of the tilt bearing 41 is fixed to the swash plate 32 in the same manner as the outer ring of the horizontal bearing 51. The inner ring of the tilt bearing 41 and the wedge surface 21 of the wedge base 20 are fixedly connected to each other in the same manner as the outer ring of the tilt bearing 41. At this time, the wedge surface 21, the inclined surface 31 and the plate surface of the swash plate 32 are parallel to each other by the inclined bearing 41. An inclined gear ring 42 is coaxially and fixedly connected to the inner ring of the inclined bearing 41. Inside the tilt driving chamber, a tilt motor 44 is fixedly installed through a tilt fixing rod 45, and an output shaft of the tilt motor 44 and an axis of the tilt bearing 41 are parallel to each other. An output shaft of the tilting motor 44 is coaxially and fixedly connected with a tilting gear 43, and the tilting gear 43 and the tilting gear ring 42 are meshed with each other for transmission, so that the wedge-shaped base 20 rotates around the axis of the tilting bearing 41 under the driving of the tilting motor 44 to adjust the pitch angle of the photovoltaic panel 23. The horizontal bearing 51 and the inclined bearing 41 may be deep groove ball bearings, and other kinds of bearings may be used as long as the bearings can withstand axial force and radial force.

The wedge-shaped base 20 may have a right trapezoid block structure or a right triangular prism structure. The inclined surfaces 31 of each structure constitute the corresponding wedge-shaped surfaces 21. The angle of inclination of the wedge-shaped surface 21 is generally between 30 and 60 degrees, and the specific angle may be chosen according to the actual circumstances.

On the bottom surface of the wedge-shaped base 20 of the right-angled trapezoidal block design, a positioning shaft 22 is also arranged, the positioning shaft 22 being arranged perpendicularly to the bottom surface. A plurality of groups of fan-shaped photovoltaic panels 23 are mounted on the positioning shaft 22.

The photovoltaic panel 23 comprises a swivel 232, a fan-shaped panel body 231 is fixedly connected to the swivel 232, and the panel surface of the panel body 231 and the annular surface of the swivel 232 are parallel to each other. Waist-shaped holes 2321 are formed in the annular surface of the swivel 232 in a penetrating manner, and the hole pattern length directions of the waist-shaped holes 2321 are distributed along the circumferential direction of the swivel 232. The upper ring surface of the swivel 232 is provided with a driving pin 2322, each group of photovoltaic plates 23 are sequentially and coaxially sleeved on the positioning shaft 22 through the swivel 232, and in two adjacent photovoltaic plates (23), the driving pin 2322 on the lower swivel 232 is inserted into the waist-shaped hole 2321 of the upper swivel 232 from bottom to top.

The positioning shaft 22 is a hollow shaft with a larger diameter, and a driving motor 221 is fixedly connected inside the hollow shaft. The drive shaft of the drive motor 221 is coaxially arranged with the positioning shaft 22; and the driving shaft extends out of the positioning shaft 22 from bottom to top and is coaxially and fixedly connected with the driving disc 222. The lower disc surface of the driving disc 222 is fixedly connected with a rotating ring 232 positioned at the topmost end of the positioning shaft 22 through a plurality of positioning columns, and the rotating ring 232 positioned at the bottommost end of the positioning shaft 22 is fixedly connected on the positioning shaft 22.

Along the direction of rotation and unfolding of the photovoltaic panels 23, the driving pins 2322 are installed at the tail of the waist-shaped holes 2321, and after all the photovoltaic panels 23 are unfolded, all the driving pins 2322 are sequentially and uniformly distributed along a spiral line extending around the axial direction of the positioning shaft 22.

The swivel rings 232 are numbered sequentially along the axial direction of the positioning shaft 22. The driving motor 221 rotates to drive the uppermost end of the positioning shaft 22, namely the first swivel 232 rotates, after the swivel 232 rotates by a certain angle, the driving pin 2322 on the second swivel 232 slides relatively from the head end to the tail end of the waist-shaped hole 2321 on the first swivel 232, and then the first swivel 232 drives the second swivel 232 to rotate. The swivels 232 are unfolded in sequence in this manner, so that, when they are rotated to the last swivel 232, a disc-shaped light-receiving surface is formed. When the photovoltaic panel is retracted, the drive motor 221 may be reversed, and the photovoltaic panels 232 may be reversed. Since the photovoltaic panels 23 are all of a flat plate structure, the light receiving surface is formed by combining the panel surfaces of the respective photovoltaic panels 23.

When the solar energy collecting device is used, the existing computing equipment is used for calculating the altitude angle and azimuth angle of the sun, and under the adjustment of the control terminal, the driving motor 221 is rotated at first, and each photovoltaic panel 23 is unfolded in sequence to form a light receiving surface; then the tilting motor 44 is driven to rotate, so that the light receiving surface formed by the photovoltaic panel 23 is perpendicular to the solar beam, and the pitching angle of the photovoltaic panel 23 is adjusted; the horizontal motor 54 is then driven to operate so that the photovoltaic panel 23 faces the sun, and the rotation angle of the photovoltaic panel 23 is adjusted. The light receiving surface of the photovoltaic panel 23 is now kept perpendicular to the solar beam. And the control terminal can be adjusted in real time, so that the vertical irradiation time length is improved, and the conversion amount of solar energy is improved.

In using the present apparatus, the photovoltaic panel 23 needs to be fully unfolded and adjusted to an initial state: the light receiving surface of the photovoltaic panel 23 is aligned parallel to the mounting ground plane while leaving the device in a southward orientation. This step occurs during the first use of the device. The device is not adjusted to the initial state if it has been used a number of times.

After the photovoltaic panels 23 are adjusted, the geographic dimension γ of the installation site is measured using a theodolite. The current time t of the installation site is checked. The day is the day of the current year, counting from day 1 of the current year, month 1. And inquiring the sunrise and sunset time of the installation place from the data on the hundred-degree network, and judging the relationship between the current time t of the installation place and the sunrise and sunset time of the installation place. If t is between sunrise and sunset times of the day of the installation place, which means that sunlight irradiates at the moment, the position of the photovoltaic panel 23 can be adjusted to receive sunlight; if t is outside the sunrise and sunset time of the installation place, it indicates that no sun exists at present, and the photovoltaic panel 23 does not need to be adjusted, and the process continues to wait until the sun exists. After confirming the above data, the solar declination angle δ of the installation site and the solar time angle ω of the current time of the installation site are calculated using the following calculation formula:

ω＝(12-t)×150

wherein n represents the nth day of the current year, t is the current time of the installation place, and 24 hours is counted. The solar angle ω is calculated starting at 12 pm at 0 degrees and 15 degrees per hour. The unit of solar declination angle delta is radian at the time of calculation and needs to be converted into degree.

When the sun comes out, a calculation formula is used for calculating the sun altitude and the sun azimuth. The solar altitude refers to the angle between the incident direction of sunlight at a certain place on the earth and the ground plane. The azimuth angle of the sun, namely the azimuth angle of the sun, refers to the included angle between the projection of the sun rays on the ground plane and the meridian of the installation place, and can be approximately regarded as the included angle between the shadow of the straight line erected on the ground under the sun and the right south. The solar azimuth angle is zero in the north direction of the target object, gradually increases in the clockwise direction, and the value range of the solar azimuth angle is 0-360 degrees. Therefore, the solar azimuth angle is generally an angle measured in a clockwise direction with the north direction of the target object as the starting direction and the incident direction of sunlight as the ending direction.

The calculation formula of the solar altitude H is as follows:

H＝acrsin(0.79sinδ·sinγ+1.23cosδ·cosγ·cosω)

the calculation formula of the solar azimuth angle A is as follows:

when the calculation of the solar altitude and the solar azimuth is completed, then the angle between the light receiving surface of the photovoltaic panel 23 and the ground plane is set to be the pitch angle phi ₁ Pitch angle phi ₁ Specific data are measured by a pitching angle sensor arranged on the photovoltaic bracket 22, and the pitching angle sensor can measure the pitching angle phi between the light receiving surface and the ground plane in real time ₁ And transmits the data to the control terminal.

Setting the clockwise included angle between the direction of the light receiving surface of the photovoltaic panel 23 and the north direction as the rotation angle phi ₂ Angle of rotation phi ₂ Specific data is measured by a rotation angle sensor provided on the swivel base 30. The rotation angle sensor can measure the rotation angle phi of the light receiving surface in real time ₂ And transmits the data to the control terminal.

Inputting the calculated solar altitude angle H into a control terminal, wherein the control terminal passes through phi ₁ The corresponding phi is calculated according to the principle of the balance between H and H ₁ The method comprises the steps of carrying out a first treatment on the surface of the The control terminal sends out a signal to control the first driving motor 44 to guide the photovoltaic panel 23 to rotate until the pitch angle phi of the pitch angle sensor ₁ Pitch angle phi of measured value and control terminal ₁ The calculated values are the same, and the pitch angle of the light receiving surface on the photovoltaic panel 23 is adjusted.

Inputting the calculated solar azimuth angle A into a control terminal, wherein the control terminal passes through phi ₂ The equivalent principle of A is used for calculating the corresponding phi ₂ The method comprises the steps of carrying out a first treatment on the surface of the The control terminal sends out a signal to control the second driving motor 54 to guide the photovoltaic panel 23Rotate until the rotation angle phi of the rotation angle sensor ₂ Angle phi of rotation of measured value and control terminal ₂ The calculated values are the same, and the adjustment of the rotation angle of the light receiving surface on the photovoltaic panel 23 is completed.

The specific driving condition of the tilting motor 44 is calculated first, and then the horizontal motor 54 is calculated, because the corresponding rotation angle is generated while the pitch angle is adjusted, but the pitch angle is not affected when the rotation angle is adjusted.

The control terminal is matched with the sensor for use, the control terminal processes real-time information transmitted by the sensor, and timely adjusts the driving motor to make corresponding actions, so that the light receiving surface makes following actions along with the movement of the sun, and further, the solar beam is kept to vertically irradiate the light receiving surface of the early photovoltaic panel 23 for a long time, and the utilization rate of solar energy is improved.

As shown in fig. 9, in the space rectangular coordinate system O-XYZ, it is known that: the included angle between the second rotating shaft and the Z axis is theta 1, and the value of theta 1 is [30 DEG, 40 DEG ]]. The rotation angle of the first rotating shaft is theta 2, and the range is [0 DEG, 180 DEG]. The elliptical surface in fig. 9 is actually a circle formed by expanding each photovoltaic panel 23, but is an ellipse appearing in the coordinate system. During rotation, the normal L2 of the plane where the ellipse is located takes the normal L1 of the plane where the second rotating shaft is located as a central axis to form a conical surface. The included angle between L1 and L2 is always theta 1, the semicircular arc AB at the bottom of the cone is the track drawn by a point on L2, if a point C on the arc AB is set, the included angle formed by the straight line L2 where OC is located and the horizontal plane OXY is phi 2, then the angle formed by the rotary table top and the horizontal plane OXY is 90-phi 2, and the angle is the required pitch angle, namely the pitch angle phi ₁ 。

The angle formed by the line L3 of the projection of the line L2 where OC is located on the horizontal plane OXY and the X-axis is the azimuth angle phi 1, namely the rotation angle phi ₂ 。

Let the radius of arc AB be r.

(1) Azimuth angle determination

The length of the line segment x1 is easily obtained from fig. 9, x1=r; y1=r (1-cos θ2) cos θ1;

then:

azimuth angle: phi 1 = arctan [ ((1-cos theta 2): cos theta 1)/sin theta 2]

(2) Obtaining pitch angle

The coordinates (x 2, y2, z 2) at which point C on arc AB is located are set by fig. 9;

then it is readily available from fig. 9:

x2＝x1＝r*sinθ2；

y2＝y1＝r*(1-cosθ2)*cosθ1；

z2＝r*[(1/sinθ1)-((1-cosθ2)*sinθ1)]；

then: tan Φ2=z2

The pitch angle is 90 ° -arctanz2.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The folding solar tracking power generation equipment with the adjustable angle is characterized by comprising a base (10) and a first rotating shaft vertically arranged on the base (10), wherein a second rotating shaft is obliquely arranged on the first rotating shaft; a cantilever end of the second rotating shaft is provided with a third rotating shaft, and a fan-shaped photovoltaic panel (23) is rotatably arranged on the third rotating shaft; each group of photovoltaic panels (23) are sequentially distributed along the axial direction of the third rotating shaft, and each group of photovoltaic panels (23) can sequentially rotate to be unfolded to form a disc-shaped light receiving surface, and the light receiving surface and a reference surface perpendicular to the axial direction of the second rotating shaft are mutually intersected.

2. The angle-adjustable folding solar tracking power generation device according to claim 1, wherein the photovoltaic panel (23) comprises a swivel (232) and a panel body (231) arranged on the swivel (232), a waist-shaped hole (2321) is formed in the annular surface of the swivel (232), and the hole-shaped length direction of the waist-shaped hole (2321) is distributed along the circumferential direction of the swivel (232); a driving pin (2322) is arranged on the upper ring surface of the swivel (232); each group of photovoltaic plates (23) are sequentially and coaxially sleeved on the positioning shaft (22) through the swivel (232), and in the two adjacent photovoltaic plates (23), the driving pins (2322) on the swivel (232) positioned below are inserted into the waist-shaped holes (2321) of the swivel (232) positioned above from bottom to top; one of two groups of swivel rings (232) positioned at the outermost sides of the two ends of the positioning shaft (22) is fixedly connected with the positioning shaft (22), and the other group of swivel rings is coaxially fixedly connected with a driving shaft of the driving motor (221), and the driving shaft forms a third rotating shaft.

3. The angle-adjustable folding solar tracking power generation device according to claim 2, wherein the driving pins (2322) are installed at the tail of the waist-shaped hole (2321) along the direction of rotation and unfolding of the photovoltaic panels (23), and after all the photovoltaic panels (23) are unfolded, the driving pins (2322) of each group are sequentially and uniformly distributed along a spiral line extending around the axial direction of the positioning shaft (22).

4. A folding solar tracking power plant with adjustable angle according to claim 3, characterized in that the positioning shaft (22) is a hollow shaft arranged vertically in the axial direction, and the driving motor (221) is installed in the hollow cavity of the hollow shaft; the driving shaft extends out of the hollow shaft from bottom to top and is coaxially fixedly connected with the driving disc (222); the lower disc surface of the driving disc (222) is fixedly connected with a rotating ring (232) positioned at the topmost end of the positioning shaft (22), and the rotating ring (232) positioned at the bottommost end of the positioning shaft (22) is fixedly connected on the positioning shaft (22).

5. The foldable solar tracking power generation device with adjustable angle according to claim 2, 3 or 4, wherein a horizontal bearing (51) with vertical axial direction is arranged on the base (10), an outer ring of the horizontal bearing (51) is fixedly connected on the base (10), an inner ring of the horizontal bearing (51) forms the first rotating shaft, and a rotating seat (30) is fixedly connected on the inner ring of the horizontal bearing (51); a horizontal gear ring (52) is formed on the inner ring of the horizontal bearing (51), and the inner ring is in transmission connection with a horizontal motor (54) provided with a horizontal gear (53);

an inclined bearing (41) is arranged on the rotating seat (30), an outer ring of the inclined bearing (41) is fixedly connected to the rotating seat (30), and an inner ring of the inclined bearing (41) forms the second rotating shaft; a wedge-shaped base (20) is fixedly connected to the inner ring of the inclined bearing (41), and a positioning shaft (22) is arranged on the wedge-shaped base (20); a tilting gear ring (42) is formed on the inner ring of the tilting bearing (41), and the inner ring is in transmission connection with a tilting motor (44) provided with a tilting gear (43).

6. An angularly adjustable folding solar tracking power plant according to claim 5, characterized in that said rotating seat (30) is formed with a bevel (31), said wedge-shaped base (20) is formed with a wedge-shaped surface (21), said bevel (31) and wedge-shaped surface (21) are parallel to each other, and the axes of bevel (31) and tilting bearing (41) are perpendicular to each other; the inclined surface (31) is concavely provided with an inclined driving cavity, an inclined plate (32) which is arranged in parallel with the inclined surface (31) is fixedly connected in the inclined driving cavity, and the outer ring of the inclined bearing (41) is fixedly connected on the inclined plate (32); the tilting motor (44) is fixedly arranged in the tilting driving cavity through a tilting fixing rod (45), and the tilting plate (32) is provided with a through hole for the output shaft of the tilting motor (44) to pass through.

7. The angle-adjustable folding solar tracking power generation device according to claim 6, wherein the base (10) comprises a supporting rod (11) and a sleeve (12) coaxially fixedly connected to the top of the supporting rod (11), an outer ring of the horizontal bearing (51) is fixedly connected to the top of the sleeve (12), and the horizontal motor (54) is fixedly arranged in a pipe cavity of the sleeve (12) through a horizontal fixing rod (55).

8. The angle-adjustable folding solar tracking power generation device according to claim 7, wherein a horizontal plate (33) is mounted at the bottom of the rotating base (30), and an inner ring of the horizontal bearing (51) is fixedly connected to a lower plate surface of the horizontal plate (33).

9. An angularly adjustable folding solar tracking power plant according to claim 8, characterized in that said wedge-shaped base (20) is a right trapezoid block, the inclined surfaces of which form said wedge-shaped surface (21), the light receiving surfaces of each group of photovoltaic panels (23) being developed in sequence and the bottom surfaces of said right trapezoid block being parallel to each other.

10. An angularly adjustable folding solar tracking power plant according to claim 9, characterized in that said tilting gear (43) and tilting gear ring (42) are arranged eccentrically to each other, and said horizontal gear (53) and horizontal gear ring (52) are arranged eccentrically to each other.