A method for adjusting the orientation of a photovoltaic device

Abstract

The present invention relates to an azimuth adjustment method for a photovoltaic device, which belongs to the field of photovoltaic power generation technology, and solves the problems in the prior art that the photovoltaic panel is fixedly suspended against the wall, the direction of the photovoltaic panel cannot be adjusted, the solar energy receiving efficiency is low, and the power generation efficiency is poor. The present invention comprises the following steps: Step 1: compile a solar angle data table; Step 2: formulate a driver output revolution table; Step 3: adjust the posture of the photovoltaic panel to the initial position and start photovoltaic power generation; Step 4: adjust the posture of the photovoltaic panel to the zero position and end photovoltaic power generation. The azimuth adjustment method for the photovoltaic device of the present invention can keep the photovoltaic panel perpendicular to the sunlight at every time point of the day, greatly improving the solar energy receiving efficiency and power generation efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic power generation, and in particular relates to an azimuth adjustment method for a photovoltaic device. Background Art

[0002] Photovoltaic panels, also known as solar cell modules, are thin sheets of optoelectronic semiconductors that use sunlight to directly generate electricity.

[0003] In the prior art, photovoltaic panels are usually installed on the roof or wall of a building. When installing on a wall, photovoltaic panels are usually hung against the wall. This method cannot adjust the direction of the photovoltaic panel, but the earth is rotating all the time, and the sun's position is changing all the time. The photovoltaic panel cannot be kept perpendicular to the sunlight, and the solar energy reception efficiency is low, resulting in poor power generation efficiency; the existing photovoltaic panel assembly has its own drive device, and it is impossible to achieve extended installation with only one set of drive structure.

[0004] Therefore, there is an urgent need for an orientation adjustment method for a photovoltaic device to solve the problems in the prior art that the photovoltaic panels are fixedly hung against the wall, the direction of the photovoltaic panels cannot be adjusted, the solar energy receiving efficiency is low, and the power generation efficiency is poor. Summary of the invention

[0005] In view of the above analysis, an embodiment of the present invention aims to provide a method for adjusting the orientation of a photovoltaic device to solve the problems in the prior art that photovoltaic panels are fixedly hung against the wall, the direction of the photovoltaic panels cannot be adjusted, the solar energy receiving efficiency is low, and the power generation efficiency is poor.

[0006] The purpose of the present invention is mainly achieved through the following technical solutions:

[0007] A method for adjusting the orientation of a photovoltaic device comprises the following steps:

[0008] Step 1: Prepare a sun angle data table;

[0009] Step 2: Develop a driver output speed table;

[0010] Step 3: Adjust the position of the photovoltaic panel to the initial position and start photovoltaic power generation;

[0011] Step 4: Adjust the position of the photovoltaic panel to zero and end photovoltaic power generation.

[0012] Furthermore, the solar angle data table includes solar azimuth and solar altitude data at the initial time of each day and at each time point of each day in a year.

[0013] Furthermore, the time interval between each time point is 5-15 minutes.

[0014] Furthermore, the time interval between the time points is 5, 10 or 15 minutes.

[0015] Furthermore, the interval length of each time point is the same.

[0016] Furthermore, the solar azimuth angle and solar altitude angle at the initial moment of the day are set according to the sunrise time of the day, and the solar azimuth angle and solar altitude angle at the last time point of the day are set according to the sunset time of the day.

[0017] Furthermore, the step 2: formulating the driver output speed table includes: setting the zero position of the photovoltaic panel.

[0018] Furthermore, the driver output revolution table includes a year, a date, multiple time points on the day, and the output revolutions of the first driver and the second driver corresponding to each time point.

[0019] Furthermore, the step 2: formulating the driver output speed table also includes: formulating the driver output speed at the initial moment.

[0020] Furthermore, the step 4: adjusting the posture of the photovoltaic panel to zero position and ending photovoltaic power generation includes: adjusting the posture of the photovoltaic panel to zero position, shutting down the photovoltaic device, and ending photovoltaic power generation.

[0021] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0022] (1) The azimuth adjustment method of the photovoltaic device of the present invention can keep the photovoltaic panel perpendicular to the sunlight at every time point of the day, greatly improving the solar energy receiving efficiency and power generation efficiency;

[0023] (2) The photovoltaic device of the present invention comprises a first photovoltaic unit and a second photovoltaic unit. By adding or removing the second photovoltaic unit, the area of ​​the photovoltaic unit can be enlarged or reduced, so that the photovoltaic device of the present invention can be applied to buildings with different column spans and inter-layer spacings.

[0024] (3) The sleeve of the photovoltaic device of the present invention can adjust the azimuth of the photovoltaic assembly in the left-right direction; the screw can adjust the elevation of the photovoltaic assembly in the up-down direction, and the first photovoltaic unit and the second photovoltaic unit can be linked and keep the movements synchronized;

[0025] (4) The photoelectric conversion part and the transmission part of the photoelectric device of the present invention are connected by a barrel limiting mechanism and a screw limiting mechanism; the first transmission unit and the second transmission unit of the transmission part are connected by a screw limiting mechanism and a screw locking mechanism, and the transmission part and the driving part are connected by a screw locking mechanism and a screw limiting mechanism. The connection between the photoelectric conversion part, the transmission part and the driving part all adopts the same connection mechanism, the processing technology is simplified, and the production efficiency and the on-site installation efficiency are improved.

[0026] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can become obvious from the description or be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0028] Figure 1 A schematic diagram of the flow chart of the adjustment method;

[0029] Figure 2 is a schematic diagram of the overall structure of a photovoltaic device;

[0030] Figure 3 It is a schematic diagram of the overall structure of the support part;

[0031] Figure 4 Schematic diagram of the overall structure of the photoelectric conversion unit;

[0032] Figure 5 It is a schematic diagram of the decomposition structure of the execution component;

[0033] Figure 6 It is a schematic diagram of the exploded structure of the orientation adjustment component;

[0034] Figure 7 is a schematic diagram of the exploded structure of the rod locking unit;

[0035] Figure 8 It is the overall structural diagram of the transmission part;

[0036] Fig. 9 It is the overall structural diagram of the driving part;

[0037] Fig.10 Schematic diagram of the exploded structure of the transmission unit.

[0038] Reference numerals:

[0039] 1-supporting part; 2-photoelectric conversion part; 3-transmission part; 4-driving part; 5-barrel limiting mechanism; 6-barrel locking mechanism; 7-screw limiting mechanism; 8-screw locking mechanism; 11-crossbeam; 12-supporting seat; 21-actuator assembly; 22-azimuth adjustment assembly; 23-photovoltaic assembly; 31-transmission base; 32-first transmission wheel; 33-first transmission rod; 34-second transmission wheel; 35-second transmission rod; 41-driving base; 42-first driving shaft; 43-first driver; 44-second driving shaft; 45-second driver; 51-connecting strip; 52-limiting hole; 61-locking spring; 62-locking block; 71-mounting hole; 72-limiting groove; 81-locking rod; 82-locking rod spring; 83 - lever; 84- locking piece; 211- sleeve; 212- screw rod; 221- first gear; 222- horizontal support rod; 223- vertical support rod; 224- locking piece; 225- locking spring; 231- photovoltaic panel; 232- plug-in sleeve; 321- second gear; 331- first round rod segment; 332- second round rod segment; 333- second external thread; 334- second locking rod groove; 341- first shaft segment; 342- second shaft segment; 343- third gear; 2111- first cylindrical segment; 2112- second cylindrical segment; 2113- hanging ear; 2114- locking spring groove; 2121- first cylindrical segment; 2122- second cylindrical segment; 2123- first external thread; 2124- first locking rod groove. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0041] Example 1

[0042] A specific embodiment of the present invention, as Figure 1 As shown, a method for adjusting the orientation of a photovoltaic device is disclosed, so that the photoelectric conversion unit 2 remains perpendicular to the sunlight, thereby improving the solar energy receiving efficiency and power generation efficiency of the photoelectric conversion unit 2.

[0043] The azimuth adjustment method of this embodiment includes the following steps:

[0044] Step 1: Prepare a table of sun angle data

[0045] The solar angle data table includes the solar azimuth and solar altitude data at the initial time of each day and at each time point of each day within a year;

[0046] Preferably, the time interval between the time points is 5-15 minutes; the optimal time interval is 5, 10 or 15 minutes;

[0047] Preferably, the interval length of each time point is the same;

[0048] The first time point is after the initial moment, until the last time point of the day;

[0049] Preferably, the solar azimuth and solar altitude angle at the initial moment of the day are set according to the sunrise time of the day, and the solar azimuth and solar altitude angle at the last time point of the day are set according to the sunset time of the day.

[0050] Step 2: Create a driver output speed table

[0051] Setting the zero position of the photovoltaic panel 231;

[0052] Preferably, the zero position of the photovoltaic panel 231 is when the photovoltaic panel 231 is parallel to the building facade;

[0053] Preferably, the driver output revolution table includes the year, date, multiple time points of the day, and the output revolutions of the first driver 43 and the second driver 45 corresponding to each time point;

[0054] Set the output speed of the driver at the initial moment;

[0055] Preferably, the solar azimuth at the initial moment of each day is converted into the output revolutions of the first driver 43; at this time, the azimuth of the photovoltaic panel 231 is the initial azimuth; the solar altitude at the initial moment of each day is converted into the output revolutions of the second driver 45; at this time, the elevation of the photovoltaic panel 231 is the initial elevation;

[0056] Preferably, the solar azimuth angle at the first time point is subtracted from the solar azimuth angle at the initial time point, and the angle difference is converted into the output speed of the first driver 43; the solar altitude angle at the first time point is subtracted from the solar altitude angle at the initial time point, and the angle difference is converted into the output speed of the second driver 45;

[0057] Preferably, the solar azimuth angle at a later time point is subtracted from the solar azimuth angle at a previous time point, and the angle difference is converted into the output revolutions of the first driver 43; the solar altitude angle at a later time point is subtracted from the solar altitude angle at a previous time point, and the angle difference is converted into the output revolutions of the second driver 45; until the data conversion at the last time point is completed, tabulated and stored in the controller;

[0058] Step 3: Adjust the position of the photovoltaic panel 231 to the initial position and start photovoltaic power generation

[0059] Turning the photovoltaic panel 231 from the zero position to the initial position;

[0060] Preferably, the controller first controls the first driver 43 to rotate according to the date and the driver output tachometer, and the first driver 43 drives the sleeve 211 to rotate, and adjusts the azimuth angle of the photovoltaic panel 231 to the initial azimuth angle; then controls the second driver 45 to rotate, and the second driver 45 drives the screw 212 to rotate, and adjusts the elevation angle of the photovoltaic panel 231 to the initial elevation angle; the photovoltaic panel 231 is perpendicular to the sunlight and starts to convert solar energy into electrical energy;

[0061] Preferably, at the first time point, the controller first controls the first driver 43 to rotate according to the driver output tachometer, and the first driver 43 drives the sleeve 211 to rotate, so as to adjust the azimuth angle of the photovoltaic panel 231 to the azimuth angle at the current time point; then controls the second driver 45 to rotate, and the second driver 45 drives the screw 212 to rotate, so as to adjust the elevation angle of the photovoltaic panel 231 to the elevation angle at the current time point;

[0062] The first external thread 2123 has a thread lead angle, and when the azimuth angle of the photovoltaic panel 231 is adjusted, the elevation angle of the photovoltaic panel 231 will change. Preferably, when the second driver 45 outputs the number of revolutions, compensation is made to reduce or increase the number of revolutions so that the elevation angle of the photovoltaic panel 231 matches the solar altitude angle at that time point, and the photovoltaic panel 231 can be perpendicular to the sunlight.

[0063] Step 4: Adjust the position of the photovoltaic panel 231 to zero and end photovoltaic power generation

[0064] The position of the photovoltaic panel 231 is adjusted to zero position, and the photovoltaic device is turned off to end photovoltaic power generation.

[0065] Compared with the prior art, the azimuth adjustment method of the photovoltaic device of this embodiment can keep the photovoltaic panel perpendicular to the sunlight at every time point, greatly improving the solar energy receiving efficiency and power generation efficiency.

[0066] Example 2

[0067] Another specific embodiment of the present invention, as Figure 2 As shown, the photovoltaic device of Example 1 is disclosed.

[0068] The photovoltaic device of this embodiment includes a supporting part 1, a photoelectric conversion part 2, a transmission part 3 and a driving part 4. The photoelectric conversion part 2 is arranged on the supporting part 1, and the transmission part 3 is respectively connected to the photoelectric conversion part 2 and the driving part 4. The photoelectric conversion part 2 is used for solar power generation, and the driving part 4 is used to drive the photoelectric conversion part 2 to change direction through the transmission part 3, so that the photoelectric conversion part 2 remains perpendicular to the sunlight, thereby improving the solar energy receiving efficiency and power generation efficiency of the photoelectric conversion part 2.

[0069] Preferably, if Figure 3As shown, the support part 1 includes a crossbeam 11 and a support seat 12. The support seat 12 is arranged on the crossbeam 11. Both ends of the crossbeam 11 can be connected to the columns of the building. The support seat 12 is a support tube. The photoelectric conversion part 2 can be connected to the support seat 12 and can rotate in the support seat 12. The support seat 12 is used to provide support for the photoelectric conversion part 2 to prevent the photoelectric conversion part 2 from laterally separating from the support part 1.

[0070] Preferably, if Figure 2 As shown, the photoelectric conversion unit 2 is a modular photoelectric conversion unit, which includes a first photoelectric unit and a second photoelectric unit. The first photoelectric unit and the second photoelectric unit have the same structure, and there are multiple second photoelectric units. By adding or removing the second photoelectric unit, the area of ​​the photoelectric conversion unit 2 can be expanded or reduced, so that the photovoltaic device of the present invention can be suitable for buildings with different column spans and layer spacings.

[0071] Preferably, if Figure 4 As shown, the first photovoltaic unit includes an actuator component 21 , an orientation adjustment component 22 and a photovoltaic component 23 , and the photovoltaic component 23 is connected to the actuator component 21 via the orientation adjustment component 22 .

[0072] Preferably, if Figure 5 As shown, the actuator 21 includes a sleeve 211 and a screw 212. The sleeve 211 is sleeved on the screw 212. The screw 212 can rotate in the sleeve 211. The sleeve 211 can be connected to the support seat 12 and can rotate in the support seat 12. The sleeve 211 is used to adjust the azimuth of the photovoltaic assembly 23 in the left-right direction; the screw 212 is used to adjust the pitch of the photovoltaic assembly 23 in the up-down direction.

[0073] Preferably, the sleeve 211 includes a first cylindrical section 2111, a second cylindrical section 2112 and a hanging ear 2113, the first cylindrical section 2111 is connected to the second cylindrical section 2112, and the hanging ear 2113 is arranged on the second cylindrical section 2112. The outer diameter of the first cylindrical section 2111 is not greater than the inner diameter of the second cylindrical section 2112, and the second cylindrical section 2112 of the first photoelectric unit can be connected to the first cylindrical section 2111 of the second photoelectric unit, so that the sleeve 211 of the first photoelectric unit and the sleeve 211 of the second photoelectric unit are connected, and the photoelectric conversion unit 2 is expanded.

[0074] Preferably, if Figure 4 and Figure 6As shown, the photovoltaic device of the present invention further includes a barrel limiting mechanism 5 and a barrel locking mechanism 6, wherein the barrel limiting mechanism 5 is arranged on the first cylindrical segment 2111, and the barrel locking mechanism 6 is arranged on the second cylindrical segment 2112. The barrel locking mechanism 6 of the first photovoltaic unit can be connected to the barrel limiting mechanism 5 of the second photovoltaic unit, thereby fixing the sleeve 211 of the first photovoltaic unit and the sleeve 211 of the second photovoltaic unit, and preventing the sleeve 211 of the first photovoltaic unit and the sleeve 211 of the second photovoltaic unit from being separated.

[0075] In order to keep the first photoelectric unit and the second photoelectric unit able to rotate synchronously, preferably, the barrel limiting mechanism 5 includes a connecting strip 51, which is arranged on the outer wall of the first cylindrical section 2111; there are multiple connecting strips 51, and the multiple connecting strips 51 are evenly distributed circumferentially on the outer wall of the first cylindrical section 2111. The barrel locking mechanism 6 includes a connecting groove (not shown in the figure), which is arranged on the inner wall of the second cylindrical section 2112, and there are multiple connecting grooves, which are evenly distributed circumferentially on the inner wall of the second cylindrical section 2112. The connecting groove of the first photoelectric unit can be connected to the connecting strip 51 of the second photoelectric unit to prevent the sleeve 211 of the first photoelectric unit from rotating on the sleeve 211 of the second photoelectric unit, so as to ensure that the sleeve 211 of the first photoelectric unit and the sleeve 211 of the second photoelectric unit rotate synchronously.

[0076] In order to prevent the first photoelectric unit from being separated from the second photoelectric unit, the barrel limiting mechanism 5 further includes a limiting hole 52, which is arranged on the first cylindrical section 2111. The barrel locking mechanism 6 further includes a locking spring 61 and a locking block 62, one end of the locking spring 61 is connected to the second cylindrical section 2112, and the other end of the locking spring 61 is connected to the locking block 62. The locking block 62 of the first photoelectric unit can be connected to the limiting hole 52 of the second photoelectric unit, so as to fix the sleeve 211 of the first photoelectric unit and the sleeve 211 of the second photoelectric unit, and prevent the sleeve 211 of the first photoelectric unit and the sleeve 211 of the second photoelectric unit from being separated in the axial direction. The locking spring 61 is used to keep the locking block 62 of the first photoelectric unit connected to the limiting hole 52 of the second photoelectric unit.

[0077] Preferably, the sleeve 211 also includes a locking spring groove 2114, which is arranged on the outer wall of the second cylindrical section 2112, and the locking spring 61 is connected to the locking spring groove 2114. The locking spring groove 2114 is used to accommodate the locking spring 61 to prevent the locking spring 61 from protruding from the outer wall of the second cylindrical section 2112. When installing the photovoltaic device of the present invention, it is convenient to insert the sleeve 211 into the support seat 12. During the installation and construction process of the photovoltaic device of the present invention, it can be manually installed without special tools.

[0078] Preferably, if Figure 5 and Figure 6As shown, the screw rod 212 includes a first cylindrical segment 2121 , a second cylindrical segment 2122 and a first external thread 2123 . The first cylindrical segment 2121 and the second cylindrical segment 2122 are connected, and the first external thread 2123 is arranged on the outer wall of the first cylindrical segment 2121 . The orientation adjustment assembly 22 includes a first gear 221, a horizontal support rod 222 and a vertical support rod 223. The two ends of the horizontal support rod 222 are respectively connected to the first gear 221 and the vertical support rod 223. The vertical support rod 223 can be connected to the photovoltaic assembly 23. The first gear 221 is hinged with the hanging ear 2113. The first gear 221 can be threadedly connected with the first external thread 2123. By rotating the screw rod 212, the first gear 221 can rotate on the hanging ear 2113, thereby driving the horizontal support rod 222 to swing up and down, thereby adjusting the pitch of the photovoltaic assembly 23; by rotating the sleeve 211, the first gear 221 and the horizontal support rod 222 can swing left and right, thereby adjusting the orientation of the photovoltaic assembly 23 in the left and right directions. Preferably, the first gear 221 is a worm gear, which is more conducive to cooperating with the screw rod 212.

[0079] Preferably, the photovoltaic assembly 23 includes a photovoltaic panel 231 and a plug-in sleeve 232 , the plug-in sleeve 232 is fixedly connected to the photovoltaic panel 231 , and the plug-in sleeve 232 can be plugged into the longitudinal support rod 223 , thereby fixing the photovoltaic panel 231 on the orientation adjustment assembly 22 .

[0080] In order to prevent the photovoltaic component 23 from detaching from the orientation adjustment component 22, preferably, the orientation adjustment component 22 also includes a locking piece 224 and a locking spring 225, one end of the locking piece 224 is hinged to the longitudinal support rod 223, and the other end of the locking piece 224 is provided with a locking protrusion, one end of the locking spring 225 is connected to the longitudinal support rod 223, and the other end of the locking spring 225 is connected to the locking protrusion, and the locking protrusion is used to connect to the end of the plug-in sleeve 232 to prevent the plug-in sleeve 232 from detaching from the longitudinal support rod 223, and the locking spring 225 is used to keep the locking protrusion connected to the end of the plug-in sleeve 232. The end face of the locking protrusion is a locking inclined surface. When the plug-in sleeve 232 is connected to the longitudinal support rod 223, the inner wall of the plug-in sleeve 232 can be connected to the locking inclined surface, thereby pressing the locking piece 224 in the direction of the longitudinal support rod 223. The plug-in sleeve 232 can be sleeved on the longitudinal support rod 223 without specifically pressing the locking piece 224; after the longitudinal support rod 223 is fully inserted into the plug-in sleeve 232, the locking protrusion is pushed out by the locking spring 225 and automatically connected to the end of the plug-in sleeve 232 to prevent the plug-in sleeve 232 from being detached from the longitudinal support rod 223. During the installation and construction process of the photovoltaic device of the present invention, it can be manually installed without the need for special tools.

[0081] Preferably, if Figure 4 and Figure 5As shown, the photovoltaic device of the present invention further includes a screw stop mechanism 7, which is disposed at one end of the first cylindrical segment 2121. The screw stop mechanism 7 includes a mounting hole 71, which is disposed on the end surface of the first cylindrical segment 2121. The mounting hole 71 is a threaded hole, and the second cylindrical segment 2122 of the first photoelectric unit can be threadedly connected with the mounting hole 71 of the second photoelectric unit, so that the screw 212 of the first photoelectric unit can be threadedly connected with the screw 212 of the second photoelectric unit, so that the photoelectric conversion unit 2 can be expanded.

[0082] Preferably, if Figure 5 and Figure 7 As shown, the screw rod limiting mechanism 7 also includes a limiting groove 72, which is multiple and evenly distributed around the mounting hole 71. The screw rod 212 also includes a first locking rod groove 2124, which is arranged on the first cylindrical section 2121. The photovoltaic device of the present invention also includes a screw rod locking mechanism 8, which is arranged at the other end of the first cylindrical section 2121. The screw rod locking mechanism 8 includes a locking rod 81 and a locking rod spring 82, the locking rod 81 is arranged on the first locking rod groove 2124, and can slide on the first locking rod groove 2124, the first locking rod groove 2124 is provided with a side opening, and the locking rod 81 can slide into and out of the first locking rod groove 2124 through the side opening; one end of the locking rod spring 82 is connected to the first locking rod groove 2124, and the other end of the locking rod spring 82 is connected to the locking rod 81, and the locking rod spring 82 is used to keep the locking rod 81 in a state of sliding out of the first locking rod groove 2124. After the screw 212 of the first photoelectric unit can be threadedly connected with the screw 212 of the second photoelectric unit, the locking rod 81 can be connected with the limiting groove 72, thereby preventing the screw 212 of the first photoelectric unit and the screw 212 of the second photoelectric unit from rotating in the opposite direction and disengaging, thereby ensuring the fixed connection between the screw 212 of the first photoelectric unit and the screw 212 of the second photoelectric unit, and ensuring that the overall structure of the photoelectric conversion unit 2 remains stable.

[0083] Preferably, the screw locking mechanism 8 further comprises a lever 83 and a locking member 84. The lever 83 is arranged on the locking rod 81. By moving the lever 83, the locking rod 81 can slide into and out of the first locking rod groove 2124. The locking member 84 can be connected to the first locking rod groove 2124. The locking member 84 is used to block the lever 83 to prevent the locking rod 81 from being separated from the first locking rod groove 2124.

[0084] Preferably, if Figure 8 and Fig. 9As shown, the transmission part 3 includes a first transmission unit and a second transmission unit, and the first transmission unit and the second transmission unit have the same structure. The first transmission unit includes a transmission base 31, a first transmission assembly and a second transmission assembly, and the first transmission assembly and the second transmission assembly are both arranged on the transmission base 31; the driving part 4 includes a driving base 41, a first driving assembly and a second driving assembly, and the first driving assembly and the second driving assembly are both arranged on the driving base 41. One end of the first transmission assembly can be connected to the sleeve 211, and the other end of the first transmission assembly can be connected to the first driving assembly, and the first driving assembly drives the sleeve 211 to rotate through the first transmission assembly; one end of the second transmission assembly can be connected to the screw 212, and the other end of the second transmission assembly can be connected to the second driving assembly, and the second driving assembly drives the screw 212 to rotate through the second transmission assembly.

[0085] Preferably, if Figure 8 and Fig.10 As shown, the first transmission assembly includes a first transmission wheel 32, and the first transmission wheel 32 includes a third cylindrical section. In order to keep the first transmission assembly connected to the sleeve 211 and prevent it from being separated, a cylinder limiting mechanism 5 is provided on the third cylindrical section. The connecting groove of the sleeve 211 can be connected to the connecting strip 51 of the first transmission wheel 32 to prevent the sleeve 211 of the second photoelectric unit from rotating on the first transmission wheel 32, thereby ensuring that the sleeve 211 and the first transmission wheel 32 rotate synchronously. The locking block 62 of the second photoelectric unit can be connected to the limiting hole 52 of the first transmission wheel 32, so as to fix the sleeve 211 and the first transmission wheel 32 and prevent the sleeve 211 and the first transmission wheel 32 from being separated in the axial direction. The locking spring 61 is used to keep the locking block 62 of the second photoelectric unit connected to the limiting hole 52 of the first transmission wheel 32.

[0086] Preferably, the first transmission wheel 32 also includes a fourth cylindrical segment, on which a second gear 321 is provided, and the first transmission assembly also includes a first transmission rod 33, which includes a first round rod segment 331, a second round rod segment 332, a second external thread 333 and a second locking rod groove 334, the first round rod segment 331 can be rotatably connected to the driving base 41, the first round rod segment 331 and the second round rod segment 332 are connected, the second external thread 333 is provided on the first round rod segment 331, the second external thread 333 can be connected to the second gear 321, and the first transmission rod 33 can be rotated to drive the second gear 321 to rotate through the second external thread 333, thereby driving the third cylindrical segment and the sleeve 211 to rotate.

[0087] Preferably, a screw limiting mechanism 7 is also provided on the first round rod segment 331, and a screw locking mechanism 8 is provided on the second round rod segment 332. The screw locking mechanism 8 is arranged on the second locking rod groove 334, so that the first transmission rod 33 of the first transmission unit and the first transmission rod 33 of the second transmission unit can be connected, thereby expanding the transmission part 3.

[0088] Preferably, the second transmission assembly includes a second transmission wheel 34, and the second transmission wheel 34 includes a first shaft segment 341 and a second shaft segment 342. The first shaft segment 341 and the second shaft segment 342 are connected, and the first shaft segment 341 and the second shaft segment 342 are both cylinders. The second shaft segment 342 can be rotatably connected to the fourth cylindrical segment, and the inner diameter of the fourth cylindrical segment is smaller than the outer diameter of the first shaft segment 341, so as to prevent the second transmission wheel 34 from being separated from the first transmission wheel 32.

[0089] Preferably, in order to fix the first shaft segment 341 and the screw 212, a screw limiting mechanism 7 is provided on the end face of the first shaft segment 341, and the screw locking mechanism 8 of the screw 212 can be connected to the screw limiting mechanism 7 of the first shaft segment 341 to prevent the screw 212 of the second photoelectric unit from rotating on the second transmission wheel 34, thereby ensuring that the screw 212 and the second transmission wheel 34 rotate synchronously.

[0090] Preferably, the second transmission wheel 34 further includes a third gear 343, and the third gear 343 is arranged on the second shaft section 342. The second transmission assembly further includes a second transmission rod 35, and the second transmission rod 35 has the same structure as the first transmission rod 33, and the second transmission rod 35 is used to drive the third gear 343. A screw limit mechanism 7 is provided at one end of the second transmission rod 35, and a screw locking mechanism 8 is provided at the other end, so that the second transmission rod 35 of the first transmission unit and the second transmission rod 35 of the second transmission unit can be connected, thereby expanding the transmission part 3.

[0091] The photoelectric conversion part 2 and the transmission part 3 are connected by a barrel limiting mechanism 5 and a screw limiting mechanism 7; the first transmission unit and the second transmission unit of the transmission part 3 are connected by a screw limiting mechanism 7 and a screw locking mechanism 8. The processing techniques of the photoelectric conversion part 2 and the transmission part 3 are similar, which improves production efficiency.

[0092] Preferably, the photovoltaic device of the present invention further comprises a controller (not shown in the figure). Fig. 9As shown, the first drive assembly includes a first drive shaft 42 and a first driver 43, the first drive shaft 42 is rotatably connected to the drive base 41, the first driver 43 is connected to the first drive shaft 42, and the first driver 43 is also connected to the controller, the controller can control the first driver 43 to rotate, and drive the first drive shaft 42 to rotate. Preferably, a screw limit mechanism 7 is provided at one end of the first drive shaft 42, and the first drive shaft 42 can be fixedly connected to the first transmission rod 33 and the screw locking mechanism 8 on the first transmission rod 33 through the screw limit mechanism 7; the second drive assembly includes a second drive shaft 44 and a second driver 45, the second drive shaft 44 is rotatably connected to the drive base 41, the second driver 45 is connected to the second drive shaft 44, and the second driver 45 is also connected to the controller, the controller can control the second driver 45 to rotate, and drive the second drive shaft 44 to rotate. Preferably, a screw limit mechanism 7 is provided at one end of the second drive shaft 44, and the second drive shaft 44 can be fixedly connected to the second transmission rod 35 and the screw locking mechanism 8 on the second transmission rod 35 through the screw limit mechanism 7. The transmission part 3 and the driving part 4 are connected by a screw locking mechanism 8 and a screw limiting mechanism 7. The processing technology of the driving part 4 and the transmission part 3 is the same, which improves the production efficiency.

[0093] Compared with the prior art, the driving part 4 can drive the photoelectric conversion part 2 to change direction through the transmission part 3, and the photoelectric conversion part 2 remains perpendicular to the sunlight, thereby improving the solar energy receiving efficiency and power generation efficiency of the photoelectric conversion part 2; the photoelectric conversion part 2 includes a first photoelectric unit and a second photoelectric unit. By adding or removing the second photoelectric unit, the area of ​​the photoelectric conversion part 2 can be expanded or reduced, so that the photovoltaic device of the present invention can be suitable for buildings with different column spans and inter-layer spacings; the sleeve 211 can adjust the azimuth of the photovoltaic component 23 in the left and right directions; the screw 212 can adjust the pitch of the photovoltaic component 23 in the up and down directions, and the first photoelectric unit and the second photoelectric unit can be linked and keep the movements synchronized.

[0094] The photoelectric conversion part 2 and the transmission part 3 are connected by a barrel limiting mechanism 5 and a screw limiting mechanism 7; the first transmission unit and the second transmission unit of the transmission part 3 are connected by a screw limiting mechanism 7 and a screw locking mechanism 8, and the transmission part 3 and the driving part 4 are connected by a screw locking mechanism 8 and a screw limiting mechanism 7. The photoelectric conversion part 2, the transmission part 3 and the driving part 4 are all connected by the same connection mechanism, the processing technology is simplified, and the production efficiency and on-site installation efficiency are improved.

[0095] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for adjusting the orientation of a photovoltaic device, characterized in that: The photovoltaic device comprises a support part (1), a photoelectric conversion part (2), a transmission part (3), a driving part (4), a barrel limiting mechanism (5), a barrel locking mechanism (6) and a screw limiting mechanism (7); the photoelectric conversion part (2) is arranged on the support part (1); the transmission part (3) is connected to the photoelectric conversion part (2) and the driving part (4) respectively; the photoelectric conversion part (2) is used for solar power generation; and the driving part (4) is used for driving the photoelectric conversion part (2) to change direction through the transmission part (3) so that the photoelectric conversion part (2) remains perpendicular to sunlight; The photoelectric conversion unit (2) is a modular photoelectric conversion unit, comprising a first photoelectric unit and a second photoelectric unit, the first photoelectric unit and the second photoelectric unit having the same structure, a plurality of second photoelectric units, and the area of ​​the photoelectric conversion unit (2) can be expanded or reduced by adding or removing the second photoelectric unit; The first photovoltaic unit comprises an actuator component (21), an orientation adjustment component (22) and a photovoltaic component (23), wherein the photovoltaic component (23) is connected to the actuator component (21) via the orientation adjustment component (22); The actuator assembly (21) comprises a sleeve (211) and a screw rod (212); the sleeve (211) is sleeved on the screw rod (212); the screw rod (212) can rotate in the sleeve (211); the sleeve (211) can be connected to the support seat (12) and can rotate in the support seat (12); the sleeve (211) is used to adjust the azimuth of the photovoltaic assembly (23) in the left-right direction; the screw rod (212) is used to adjust the pitch of the photovoltaic assembly (23) in the up-down direction; The sleeve (211) comprises a first cylindrical section (2111), a second cylindrical section (2112) and a hanging ear (2113); the first cylindrical section (2111) is connected to the second cylindrical section (2112), and the hanging ear (2113) is arranged on the second cylindrical section (2112); the second cylindrical section (2112) of the first photoelectric unit can be connected to the first cylindrical section (2111) of the second photoelectric unit, thereby connecting the sleeve (211) of the first photoelectric unit and the sleeve (211) of the second photoelectric unit, and expanding the photoelectric conversion unit (2); The screw rod (212) comprises a first cylindrical section (2121), a second cylindrical section (2122) and a first external thread (2123); the first cylindrical section (2121) and the second cylindrical section (2122) are connected, and the first external thread (2123) is arranged on the outer wall of the first cylindrical section (2121); The orientation adjustment assembly (22) comprises a first gear (221), a transverse support rod (222) and a longitudinal support rod (223); the two ends of the transverse support rod (222) are respectively connected to the first gear (221) and the longitudinal support rod (223); the longitudinal support rod (223) can be connected to the photovoltaic assembly (23); the first gear (221) is hinged to the hanging ear (2113); the first gear (221) can be connected to the first external thread (2123); by rotating the screw rod (212), the first gear (221) can rotate on the hanging ear (2113), thereby driving the transverse support rod (222) to swing up and down, thereby adjusting the pitch of the photovoltaic assembly (23); by rotating the sleeve (211), the first gear (221) and the transverse support rod (222) can swing left and right, thereby adjusting the orientation of the photovoltaic assembly (23) in the left and right directions; The cylinder limiting mechanism (5) comprises a connecting strip (51) which is arranged on the outer wall of the first cylinder section (2111); the cylinder locking mechanism (6) comprises a connecting groove which is arranged on the inner wall of the second cylinder section (2112); the connecting groove of the first photoelectric unit can be connected to the connecting strip (51) of the second photoelectric unit, so as to prevent the sleeve (211) of the first photoelectric unit from rotating on the sleeve (211) of the second photoelectric unit; The azimuth adjustment method comprises the following steps: Step 1: Prepare a sun angle data table; Step 2: Develop a driver output speed table; Step 3: adjusting the position of the photovoltaic panel (231) to an initial position and starting photovoltaic power generation; Step 4: Adjust the position of the photovoltaic panel (231) to zero position and terminate photovoltaic power generation.

2. A method for adjusting the orientation of a photovoltaic device according to claim 1, characterized in that: The solar angle data table includes solar azimuth and solar altitude data at the initial time of each day and at each time point of each day in a year.

3. A method for adjusting the orientation of a photovoltaic device according to claim 2, characterized in that: The time intervals between the time points are 5-15 minutes.

4. A method for adjusting the orientation of a photovoltaic device according to claim 2, characterized in that: The time intervals of the time points are 5, 10 or 15 minutes.

5. A method for adjusting the orientation of a photovoltaic device according to claim 2, characterized in that: The interval length of each time point is the same.

6. A method for adjusting the orientation of a photovoltaic device according to claim 2, characterized in that: The solar azimuth and solar altitude angles at the initial moment of the day are set according to the sunrise time of the day, and the solar azimuth and solar altitude angles at the last time point of the day are set according to the sunset time of the day.

7. A method for adjusting the orientation of a photovoltaic device according to claim 1, characterized in that: The step 2: formulating the driver output revolution table includes: setting the zero position of the photovoltaic panel (231).

8. A method for adjusting the orientation of a photovoltaic device according to claim 7, characterized in that: The driver output revolution table includes a year, a date, a plurality of time points on the day, and the output revolutions of the first driver (43) and the second driver (45) corresponding to each time point.

9. A method for adjusting the orientation of a photovoltaic device according to claim 8, characterized in that: The step 2: formulating the driver output speed table also includes: formulating the driver output speed at the initial moment.

10. The method for adjusting the orientation of a photovoltaic device according to claim 1, characterized in that: The step 4: adjusting the posture of the photovoltaic panel (231) to zero position and ending photovoltaic power generation includes: adjusting the posture of the photovoltaic panel (231) to zero position, shutting down the photovoltaic device, and ending photovoltaic power generation.

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