Double-shaft tracking type photovoltaic support with folding wind-resistant function and photovoltaic device

Abstract

The invention discloses a double-shaft tracking type photovoltaic support with a folding wind-resistant function, which comprises a fixed support, a primary driving mechanism and a secondary driving mechanism, and is characterized in that the primary driving mechanism can drive the secondary driving mechanism to rotate around the rotation axis of the primary driving mechanism, so that the rotation of a photovoltaic panel around a transverse shaft is realized; the second-stage driving mechanism can drive the photovoltaic panel to rotate around the rotation axis of the second-stage driving mechanism, so that the photovoltaic panel rotates around the longitudinal axis; a rotating part of the secondary driving mechanism is fixedly connected with the clutch mechanism; when the clutch mechanism is in a connection state, the rotation of the rotating piece of the secondary driving mechanism can drive the first photovoltaic panel and the second photovoltaic panel to rotate synchronously; and when the clutch mechanism is in a separated state, the rotation of the rotating piece of the secondary driving mechanism can drive the first photovoltaic panel to rotate relative to the second photovoltaic panel. The photovoltaic device provided by the invention has tracking and folding functions. The invention further discloses a double-shaft tracking type photovoltaic device with a folding wind-resistant function.

Description

Technical Field

[0001] The present invention relates to a photovoltaic power generation device, in particular to a dual-axis tracking photovoltaic bracket with folding and wind-resistant functions. The present invention also relates to a dual-axis tracking photovoltaic device with folding and wind-resistant functions. Background Art

[0002] As a clean and renewable energy, solar energy has been increasingly used. Solar photovoltaic power generation equipment uses solar photovoltaic modules as photoelectric conversion devices to convert solar energy into electrical energy, thereby realizing the utilization of solar energy.

[0003] At present, in order to increase the power generation of photovoltaic equipment per unit time, a common method is to increase the size of photovoltaic panels as much as possible. For example, Chinese utility model patent document CN216122306U discloses a photovoltaic device, which includes a plurality of photovoltaic panels arranged in a linear manner, so that the size of the photovoltaic panels is increased significantly, thereby significantly increasing the power generation.

[0004] Another commonly used method to increase power generation is to use photovoltaic panels to track the sun. This is because the power generation of photovoltaic power generation equipment depends on the amount of solar radiation received by the photovoltaic panels. In order to improve the power generation efficiency of photovoltaic power generation equipment, it is necessary to make the upper surface of the photovoltaic panel always face the sun to ensure that the vertical irradiation area of ​​sunlight is maximized, thereby improving the photoelectric conversion efficiency. For example, Chinese invention patent document CN106130459B discloses a photovoltaic bracket that automatically tracks the optimal incident angle of sunlight. The photovoltaic bracket has an adaptive adjustment function for different longitudes and latitudes and time periods to ensure that sunlight is irradiated onto the photovoltaic panel at the optimal incident angle.

[0005] Although the photovoltaic bracket can adjust the inclination and azimuth of the photovoltaic panel, the tracking range of the inclination is 0° to 110°, and the tracking range of the azimuth is -125° to +125°. Obviously, the angle adjustment range of the photovoltaic bracket is limited. In addition, the angle adjustment method of the photovoltaic bracket is not flexible enough. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a dual-axis tracking photovoltaic bracket with folding and wind-resistant function, which can not only drive the photovoltaic panel to rotate around the horizontal axis, but also drive the photovoltaic panel to rotate around the vertical axis, so as to flexibly adjust the angle of the photovoltaic panel to ensure that sunlight is irradiated to the photovoltaic panel at the optimal incident angle; and the present invention can also be folded and folded.

[0007] In order to solve the above technical problems, the technical solution of the dual-axis tracking photovoltaic bracket with folding and wind-resistant function of the present invention is:

[0008] The invention comprises a fixed bracket, a primary drive mechanism and a secondary drive mechanism, wherein the fixed part and the rotating part of the primary drive mechanism can rotate relative to each other; the fixed part of the primary drive mechanism is fixedly connected to the fixed bracket; the fixed part and the rotating part of the secondary drive mechanism can rotate relative to each other; the fixed part of the secondary drive mechanism is fixedly connected to the rotating part of the primary drive mechanism, and the output end of the rotating part of the secondary drive mechanism is fixedly connected to the clutch mechanism; the clutch mechanism is used for fixedly connecting the photovoltaic panel; the rotation axis of the primary drive mechanism extends in the transverse direction; the rotation axis of the secondary drive mechanism extends in the longitudinal direction; the primary drive mechanism and / or the secondary drive mechanism also include an intermediate part, which is movably connected to the rotating part, and the intermediate part and the rotating part are guided and connected by a first guide structure; the intermediate part is movably connected to the fixed part, and the intermediate part and the fixed part are guided and connected by a second guide structure; the clutch mechanism comprises a clutch mechanism fixed part and a clutch mechanism moving part which are arranged relatively; under the action of external force, the clutch mechanism moving part of the clutch mechanism can move relative to its clutch mechanism fixed part, so that the clutch state of the clutch mechanism is switched.

[0009] In another embodiment, the fixing part of the primary drive mechanism and the secondary drive mechanism is a casing, and the rotating part of the primary drive mechanism and the secondary drive mechanism is a screw rod; or, the fixing part of the primary drive mechanism and the secondary drive mechanism is a screw rod, and the rotating part of the primary drive mechanism and the secondary drive mechanism is a casing; or, the fixing part of the primary drive mechanism is a screw rod, and the rotating part of the primary drive mechanism is a casing; the fixing part of the secondary drive mechanism is a casing, and the rotating part of the secondary drive mechanism is a screw rod; or, the fixing part of the primary drive mechanism is a casing, and the rotating part of the primary drive mechanism is a screw rod; the fixing part of the secondary drive mechanism is a screw rod, and the rotating part of the secondary drive mechanism is a casing; the intermediate part between the primary drive mechanism and the secondary drive mechanism is a sleeve.

[0010] In another embodiment, the first guide structure is a spiral guide structure; the second guide structure is an axial guide structure; or, the first guide structure is an axial guide structure; the second guide structure is a spiral guide structure.

[0011] In another embodiment, a pull rod is further included, one end of which is connected to the moving part of the clutch mechanism.

[0012] In another embodiment, a trigger member is also included, which includes a connecting portion for connecting to the other end of the pull rod, and a trigger portion for receiving the external force; when the trigger portion is subjected to force, the external force can be transmitted to the pull rod through the connecting portion, thereby providing the external force to the clutch mechanism moving part of the clutch mechanism.

[0013] In another embodiment, the trigger portion is a protrusion on the trigger member in a direction away from the driving shaft.

[0014] In another embodiment, when the clutch mechanism is in a connected state, a surface contact fit is formed between the clutch mechanism fixed part and the clutch mechanism moving part.

[0015] In another embodiment, the clutch mechanism fixing part is provided with a protrusion facing the moving part, and the clutch mechanism moving part is provided with a recess matched with the protrusion; when the clutch mechanism is in a connected state, the clutch mechanism fixing part and the clutch mechanism moving part can form a transmission connection through the cooperation of the protrusion and the recess.

[0016] In another embodiment, the clutch mechanism further includes a shell and a guide structure, wherein the shell cover is arranged on the outside of the clutch mechanism fixing part and the clutch mechanism moving part, and relative rotational movement can occur between the shell and the clutch mechanism fixing part; the clutch mechanism moving part and the shell are circumferentially positioned and connected through the guide structure.

[0017] In another embodiment, the guide structure includes a groove opened in the shell and a protrusion formed on the moving part; or, the guide structure includes a protrusion opened in the shell and a groove formed on the moving part; the protrusion is matched with the groove.

[0018] In another embodiment, the clutch mechanism further includes a lever, one end of which is connected to the moving part and the other end is a free end; when the free end of the lever is subjected to force, the external force can be provided to the moving part.

[0019] In another embodiment, the clutch mechanism further includes an elastic member, wherein the elastic member is connected to the moving member; when the external force disappears, the elastic member can provide a restoring force to the moving member.

[0020] In another embodiment, the primary driving mechanism and / or the secondary driving mechanism further includes a driven member and an active member, the driven member is fixedly connected to the intermediate member; the active member is connected to a power source; under the drive of the power source, the active member drives the driven member, and can drive the intermediate member to perform linear motion along the axial direction of the rotating member.

[0021] In another embodiment, the helix angle of the helical guide structure does not exceed 40°.

[0022] In another embodiment, the helix angle of the helical guide structure is greater than 5° and less than 25°.

[0023] In another embodiment, the active member is a screw and the driven member is a screw nut; the screw rotates, driving the screw nut and the sleeve to translate along the axial direction of the screw rod, causing relative rotation between the screw rod and the sleeve, thereby achieving relative rotation between the screw rod and the housing.

[0024] In another embodiment, the sliding sleeve is provided with a through hole, and the sliding sleeve is sleeved on the spiral rod through the through hole; the spiral guide structure is a spiral groove provided on the inner wall of the through hole, and a spiral protrusion provided on the outer circumference of the spiral rod;

[0025] In another embodiment, the spiral guide structure is a spiral protrusion provided on the inner wall of the through hole, and a spiral groove provided on the outer circumference of the spiral rod;

[0026] In another embodiment, the spiral guide structure is a first spiral groove respectively arranged on the inner wall of the through hole, a second spiral groove arranged on the outer circumference of the spiral rod, and a plurality of balls arranged between the first spiral groove and the second spiral groove.

[0027] In another embodiment, a first axial guide structure extending axially is formed on the outer peripheral surface of the sleeve, and a second axial guide structure adapted to the first axial guide structure is provided on the outer shell; the first axial guide structure and the second axial guide structure constitute the axial guide structure between the sleeve and the outer shell.

[0028] In another embodiment, the first axial guide structure is a guide protrusion, and the second axial guide structure is a guide groove;

[0029] In another embodiment, the first axial guide structure is a guide groove, and the second axial guide structure is a guide protrusion;

[0030] In another embodiment, it also includes a guide structure middle piece, the first axial guide structure and the second axial guide structure are both guide grooves, the guide structure middle piece is arranged between the first axial guide structure and the second axial guide structure, and the guide fit is formed by the guide structure middle piece.

[0031] In another embodiment, there are two groups of primary driving mechanisms; the two groups of primary driving mechanisms are respectively fixedly disposed on two sides of the fixed bracket.

[0032] In another embodiment, the rotation axes of the two sets of primary drive mechanisms are parallel to each other.

[0033] In another embodiment, it further comprises a vertical pole, which is fixedly connected to the fixed bracket; the vertical pole extends vertically.

[0034] In another embodiment, the clutch mechanism is divided into two groups; the clutch mechanism fixing member of the first clutch mechanism is fixedly connected to the first output end of the rotating member of the secondary drive mechanism, and the clutch mechanism fixing member of the second clutch mechanism is fixedly connected to the second output end of the rotating member of the secondary drive mechanism.

[0035] The present invention also provides a dual-axis tracking photovoltaic device with folding and wind-resistant functions, and its technical solution is:

[0036] The invention comprises a dual-axis tracking photovoltaic bracket with foldable wind-resistant function, wherein one side of the secondary driving mechanism of the dual-axis tracking photovoltaic bracket is connected to the side of the first photovoltaic panel, and the other side of the secondary driving mechanism is connected to the side of the second photovoltaic panel; the side of the first photovoltaic panel is fixedly connected to the clutch mechanism fixing part of the clutch mechanism, and the side of the second photovoltaic panel is fixedly connected to the clutch mechanism moving part of the clutch mechanism; when the rotating part of the primary driving mechanism rotates relative to its fixing part, it can drive the secondary driving mechanism and the first photovoltaic panel and the second photovoltaic panel fixedly connected thereto to rotate around the rotation axis of the primary driving mechanism, thereby realizing the rotation of the first photovoltaic panel and the second photovoltaic panel around the horizontal axis; when the secondary driving mechanism rotates relative to its fixing part, it can drive the secondary driving mechanism and the first photovoltaic panel and the second photovoltaic panel fixed .... When the rotating part of the driving mechanism and its fixed part rotate relative to each other, it can drive the first photovoltaic panel and the second photovoltaic panel to rotate around the rotation axis of the secondary driving mechanism, thereby realizing the rotation of the first photovoltaic panel and the second photovoltaic panel around the longitudinal axis; when the clutch mechanism is in a connected state, the rotation of the rotating part of the secondary driving mechanism can drive the clutch mechanism fixed part and the clutch mechanism moving part of the clutch mechanism to rotate synchronously, thereby driving the first photovoltaic panel and the second photovoltaic panel to rotate synchronously; when the clutch mechanism is in a separated state, the rotation of the rotating part of the secondary driving mechanism can drive the clutch mechanism fixed part of the clutch mechanism to rotate relative to the clutch mechanism moving part, thereby driving the first photovoltaic panel to rotate relative to the second photovoltaic panel.

[0037] In another embodiment, the fixed part of the primary drive mechanism is a shell, and the rotating part of the primary drive mechanism is a screw rod; the shell of the primary drive mechanism is fixedly connected to the fixed bracket.

[0038] The technical effects that can be achieved by the present invention are:

[0039] The photovoltaic device of the present invention has both tracking and folding functions, so the photovoltaic device of the present invention can be installed not only in wild wasteland, but also in cities and agricultural land without changing the use nature of the land, solving the installation problem of photovoltaic panels.

[0040] Specifically, when the photovoltaic device of the present invention is installed on agricultural land, the tracking angle of the photovoltaic panel is adjusted to provide shielding according to the light intensity required for growing vegetation on the agricultural land, thereby controlling the illumination time of the vegetation.

[0041] Therefore, on the one hand, the present invention can solve the problem of limited installation sites for existing photovoltaic equipment, and limit the installation range of existing photovoltaic equipment to wild wasteland, and expand it to allow installation on all land without affecting the original agricultural planting function of the land. This is of great significance to the farmland protection policy of guarding the 1.8 billion mu of farmland red line.

[0042] On the other hand, when the present invention is installed on agricultural land, it can not only convert solar energy into electrical energy for use, but also improve the economic efficiency of agriculture. Specifically, when the photovoltaic panels are folded and retracted, they can provide sufficient light to the plants; and when the photovoltaic panels are unfolded, they can generate electricity. For shade-loving crops, when the photovoltaic panels are unfolded, they can also provide shade for the plants, protect the plants, reduce water evaporation, optimize the growth environment of crops, and increase agricultural yields.

[0043] When photovoltaic tracking is not needed at night, the photovoltaic panels are fitted to the poles to minimize damage to the poles and other parts caused by the expansion of the photovoltaic panels. It reduces the horizontal lifting force, reduces the pressure on the bracket and base, and makes the equipment more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] It should be understood by those skilled in the art that the following description is only intended to schematically illustrate the principles of the present invention, which can be applied in a variety of ways to achieve many different alternative embodiments. These descriptions are only intended to illustrate the general principles of the teachings of the present invention and are not intended to limit the inventive concepts disclosed herein.

[0045] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the general description above and the detailed description of the drawings that follow, serve to explain the principles of the invention.

[0046] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0047] Figure 1 is a schematic diagram of a first embodiment of a dual-axis tracking photovoltaic device with folding and wind-resistant function according to the present invention;

[0048] Figure 2 is an exploded schematic diagram of a first embodiment of a dual-axis tracking photovoltaic device with foldable wind-resistant function according to the present invention;

[0049] Figure 3 It is a connection diagram of the secondary drive mechanism and the trigger member of the present invention;

[0050] Figure 4 It is an exploded schematic diagram of the secondary drive mechanism and the trigger member of the present invention;

[0051] Figure 5 is an exploded schematic diagram of a first embodiment of the driving mechanism of the present invention;

[0052] Figure 6 is a partial enlarged schematic diagram of the spiral rod of the present invention;

[0053] Figure 7 is a schematic diagram of a second embodiment of the driving mechanism of the present invention;

[0054] Figure 8 is an exploded schematic diagram of a second embodiment of the driving mechanism of the present invention;

[0055] Fig. 9 is a schematic diagram of an embodiment of a clutch mechanism of the present invention;

[0056] Fig.10 is a cross-sectional schematic diagram of an embodiment of the clutch mechanism of the present invention;

[0057] Fig.11 is an exploded schematic diagram of an embodiment of the clutch mechanism of the present invention;

[0058] Fig.12 It is a schematic diagram of a second embodiment of a dual-axis tracking photovoltaic device with foldable wind-resistant function of the present invention; the photovoltaic panel in the figure is in an unfolded state;

[0059] Fig.13 It is a schematic diagram of a second embodiment of a dual-axis tracking photovoltaic device with folding and wind-resistant function of the present invention; the first photovoltaic panel assembly in the figure is in a folded and retracted state;

[0060] Fig.14 It is a schematic diagram of a second embodiment of a dual-axis tracking photovoltaic device with folding and wind-resistant function of the present invention; both groups of photovoltaic panel assemblies in the figure are in a folded and retracted state;

[0061] Fig.15 is a schematic diagram of a second embodiment of the T-shaped structure of the present invention;

[0062] Fig.16 It is an exploded schematic diagram of the second embodiment of the T-shaped structure of the present invention.

[0063] Description of reference numerals in the figures:

[0064] 1 is the housing, 2 is the bearing, 3 is the fixed part, 4 is the moving part, 5 is the return spring, 6 is the cover, 7 is the lever, 8 is the bolt, 9 is the bolt,

[0065] 100 is the first photovoltaic panel, 200 is the second photovoltaic panel, 301 is the secondary driving mechanism, 400 is the primary driving mechanism, 500 is the fixed bracket, 600 is the vertical pole, 700 is the third photovoltaic panel, 800 is the fourth photovoltaic panel, 901 is the second primary driving mechanism, 900 is the second secondary driving mechanism, 501 is the lower support member, 502 is the upper support member, 503 is the first connecting arm, 504 is the second connecting arm, 401 is the first photovoltaic panel connecting member, 402 is the second photovoltaic panel connecting member, 101 is the first connecting ring of the first photovoltaic panel,

[0066] 102 is a second connecting ring of the first photovoltaic panel,

[0067] 201 is a first connecting ring of the second photovoltaic panel,

[0068] 202 is a second connecting ring of the second photovoltaic panel,

[0069] 302 is a first clutch mechanism,

[0070] 303 is the second clutch mechanism, 304 is the first pull rod, 305 is the second pull rod, 306 is the trigger member, 3061 is the two wings of the trigger member, 3062 is the trigger part of the trigger member, 1-1 is a groove, 4-1 is a convex block, 6-1 is a positioning groove,

[0071] 11 is a spiral rod, 12 is a sliding sleeve, 13 is a mounting seat, 14 is a screw rod, 15 is a screw rod nut, 16 is a housing,

[0072] 17 is the first bearing, 18 is the second bearing,

[0073] 1101 are the two ends of the spiral rod, 1102 are the spiral protrusions,

[0074] 1201 is a guide groove, 1202 is a spiral groove,

[0075] 1203 is the screw nut positioning hole, and 1601 is the guide protrusion.

[0076] 301-11 is a straight guide rod, 301-12 is a sliding sleeve,

[0077] 301-14 is the screw rod, 301-15 is the screw rod nut,

[0078] 301-16 is the outer sleeve, 301-18 is the bearing,

[0079] 301-1101 is the guide groove, 301-1201 is the threaded hole of the sleeve,

[0080] 301-1501 is the threaded hole of the screw nut, and 301-1601 is the spiral groove. DETAILED DESCRIPTION

[0081] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work belong to the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in this article do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0082] like Figure 1 The figure shows the first embodiment of the dual-axis tracking photovoltaic device with folding and wind-resistant function of the present invention, which includes a vertical pole 600, a first photovoltaic panel 100, and a second photovoltaic panel 200. The vertical pole 600 extends vertically, and the upper end of the vertical pole 600 is fixedly connected to a fixing bracket 500, and one side of the fixing bracket 500 is fixedly connected to a primary driving mechanism 400, and the rotation axis of the primary driving mechanism 400 extends in the horizontal direction; the primary driving mechanism 400 is connected to a secondary driving mechanism 301, and the rotation axis of the secondary driving mechanism 301 extends in the longitudinal direction; the primary driving mechanism 300 and the secondary driving mechanism 400 form a T-shaped structure; one side of the secondary driving mechanism 301 is fixedly connected to the inner side of the first photovoltaic panel 100, and the other side of the secondary driving mechanism 301 is fixedly connected to the inner side of the second photovoltaic panel 200;

[0083] The primary drive mechanism 400 has a housing 16 and a screw rod 11, and the screw rod 11 can realize relative rotation with the housing 16; the primary drive mechanism 400 can drive the secondary drive mechanism 301 and the first photovoltaic panel 100 and the second photovoltaic panel 200 fixedly connected thereto to rotate around the rotation axis (i.e., the horizontal axis) of the primary drive mechanism 400;

[0084] Specifically, Figure 2As shown, the housing 16 of the primary drive mechanism 400 is fixedly connected to the fixed bracket 500; the lower part of the housing 16 is movably connected to one end of the lower support member 501, and the upper part of the housing 16 is movably connected to one end of the upper support member 502; the upper support member 502 and the lower support member 501 form a transmission mechanism fixed cover, one end of the transmission mechanism fixed cover wraps the middle part of the housing 16, and the transmission mechanism fixed cover can rotate relative to the housing 16; the other end of the transmission mechanism fixed cover wraps the secondary drive mechanism 301, thereby realizing the movable connection between the secondary drive mechanism 301 and the housing 16 of the primary drive mechanism 400;

[0085] The first output end of the spiral rod 11 of the primary driving mechanism 400 is fixedly connected to one end of the first connecting arm 503, and the other end of the first connecting arm 503 is fixedly connected to the lower support member 501 and / or the upper support member 502; the second output end of the spiral rod 11 of the primary driving mechanism 400 is fixedly connected to one end of the second connecting arm 504, and the other end of the second connecting arm 504 is fixedly connected to the lower support member 501 and / or the upper support member 502; the spiral rod 11 of the primary driving mechanism 400 is fixedly connected to the secondary driving mechanism 301 through the first connecting arm 503 and the second connecting arm 504;

[0086] When the spiral rod 11 of the primary driving mechanism 400 rotates relative to its housing 16, it can drive the secondary driving mechanism 301 to rotate relative to the housing 16 and the vertical rod 600 fixedly connected to the housing 16, thereby realizing the rotation of the first photovoltaic panel 100 and the second photovoltaic panel 200 around the horizontal axis;

[0087] The structure of the secondary driving mechanism 301 is the same as that of the primary driving mechanism 400; the secondary driving mechanism 301 can drive the first photovoltaic panel 100 and the second photovoltaic panel 200 to rotate around the rotation axis (i.e., the longitudinal axis) of the secondary driving mechanism 301;

[0088] Specifically, the housing 16 of the secondary drive mechanism 301 is fixedly connected to the transmission mechanism fixed cover composed of the upper support member 502 and the lower support member 501; the first output end of the spiral rod 11 of the secondary drive mechanism 301 is fixedly connected to the first clutch mechanism 302, and the second output end of the spiral rod 11 of the secondary drive mechanism 301 is fixedly connected to the second clutch mechanism 303; the first clutch mechanism 302 is fixedly connected to the first connecting ring 101 of the first photovoltaic panel 100 and the first connecting ring 201 of the second photovoltaic panel 200, and the second clutch mechanism 303 is fixedly connected to the second connecting ring 102 of the first photovoltaic panel 100 and the second connecting ring 202 of the second photovoltaic panel 200, thereby realizing the connection between the spiral rod 11 of the secondary drive mechanism 301 and the first photovoltaic panel 100 and the second photovoltaic panel 200;

[0089] When the spiral rod 11 of the secondary driving mechanism 301 rotates relative to its outer shell 16, it can drive the first photovoltaic panel 100 and the second photovoltaic panel 200 to rotate relative to the outer shell 16 of the secondary driving mechanism 301 and the transmission mechanism fixed cover fixedly connected to the outer shell 16, thereby realizing the rotation of the first photovoltaic panel 100 and the second photovoltaic panel 200 around the longitudinal axis.

[0090] The primary driving mechanism 400 of the present invention can drive the photovoltaic panel to rotate around the horizontal axis, and the secondary driving mechanism 301 can drive the photovoltaic panel to rotate around the vertical axis. By controlling the primary driving mechanism 400 and the secondary driving mechanism 301 separately, the angle of the photovoltaic panel can be adjusted at will, thereby ensuring that sunlight is irradiated onto the photovoltaic panel at the optimal incident angle to improve the photoelectric conversion efficiency.

[0091] like Figure 3 As shown, the first clutch mechanism 302 is connected to one end of the first pull rod 304, the second clutch mechanism 303 is connected to one end of the second pull rod 305, and the other ends of the first pull rod 304 and the second pull rod 305 are connected to the same trigger member 306; the trigger member 306 has a trigger part and two connecting parts of the first pull rod 304 and the second pull rod 305 respectively; when the trigger part is subjected to force, it can transmit external force to the first pull rod 304 and the second pull rod 305 at the same time through the connecting part.

[0092] Preferably, the trigger member 306 is a T-shaped structure; the two wings 3061 of the trigger member 306 serve as connecting portions, and the trigger portion 3062 of the trigger member 306 forms a protrusion in a direction away from the secondary drive mechanism 301, such as Figure 4 shown.

[0093] Specifically, the first clutch mechanism 302 has a fixed part 3 and a moving part 4, and the moving part 4 can make a translational motion relative to the fixed part 3 to switch its clutch state; when the moving part 4 is close to the fixed part 3 and forms a transmission connection with the fixed part 3, the clutch mechanism is in a connected state; when the moving part 4 is away from the fixed part 3 and is out of transmission connection with the fixed part 3, the clutch mechanism is in a separated state.

[0094] The structure of the second clutch mechanism 303 is the same as that of the first clutch mechanism 302 , and will not be described in detail herein.

[0095] The first clutch mechanism 302 and the second clutch mechanism 303 are respectively fixedly connected to the two ends of the spiral rod 11 through their respective fixing parts 3, that is, the first clutch mechanism 302 is connected to one end of the spiral rod 11 through its fixing part 3, and the second clutch mechanism 303 is connected to the other end of the spiral rod 11 through its fixing part 3; when the first clutch mechanism 302 and the second clutch mechanism 303 are in a connected state, the rotation of the spiral rod 11 can drive the fixing part 3 and the moving part 4 of the first clutch mechanism 302 and the second clutch mechanism 303 to rotate synchronously; when the first clutch mechanism 302 and the second clutch mechanism 303 are in a separated state, the rotation of the spiral rod 11 can drive the fixing part 3 of the first clutch mechanism 302 and the second clutch mechanism 303 to rotate relative to the moving part 4.

[0096] The primary drive mechanism 400 and the secondary drive mechanism 301 of the present invention have the same structure and can be used as follows: Figure 5 The driving mechanism shown in the figure is a first embodiment of the driving mechanism of the present invention, and the driving mechanism includes a screw rod 11 (as a rotating member), and two ends 1101 of the screw rod 11 are used as output ends of the driving mechanism; the output end of the primary driving mechanism 400 is used to connect the first connecting arm 503 and the second connecting arm 504, and the output end of the secondary driving mechanism 301 is used to connect the first clutch mechanism 302 and the second clutch mechanism 303; a sliding sleeve 12 (as an intermediate member) is movably provided on the screw rod 11;

[0097] The sliding sleeve 12 is provided with a through hole, and the sliding sleeve 12 is sleeved on the spiral rod 11 through the through hole; the outer peripheral surface of the spiral rod 11 is formed with a spiral protrusion 1102 extending spirally around its axis, and the inner wall of the through hole of the sliding sleeve 12 is formed with a spiral groove 1202 adapted to the spiral protrusion 1102; the spiral protrusion 1102 and the spiral groove 1202 form a spiral guide structure; through the cooperation of the spiral groove 1202 and the spiral protrusion 1102, the spiral guide connection between the sliding sleeve 12 and the spiral rod 11 is realized;

[0098] The spiral guide structure between the sleeve 12 and the screw rod 11 may also adopt other structures that can produce a spiral guide effect; for example, a spiral groove may be arranged on the outer peripheral surface of the screw rod 11, and a spiral protrusion may be arranged on the inner wall of the through hole of the sleeve 12; or a first spiral groove may be arranged on the inner wall of the through hole of the sleeve 12, a second spiral groove may be arranged on the outer peripheral surface of the screw rod 11, and a plurality of balls may be arranged between the first spiral groove and the second spiral groove, which may also realize a spiral guide connection between the sleeve 12 and the screw rod 11.

[0099] The sleeve 12 is connected to the transmission member; the transmission member includes an active member connected to the power source, and a driven member fixedly connected to the sleeve 12; driven by the power source, the active member drives the driven member, thereby driving the sleeve 12 to perform linear motion along the axial direction of the screw rod 11;

[0100] Specifically, a screw nut positioning hole 1203 is formed on the sliding sleeve 12, a screw nut 15 (driven member) is inserted into the screw nut positioning hole 1203, and the screw nut 15 is fixedly connected to the sliding sleeve 12 by a plurality of bolts;

[0101] The screw nut 15 is provided with an internal threaded hole, and the screw nut 15 is movably connected to the screw 14 (active member) through the internal threaded hole;

[0102] Both ends of the screw rod 14 are connected to the mounting seat 13 through the first bearing 17 respectively; the screw rod 14 can rotate relative to the fixed mounting seat 13; one end of the screw rod 14 is used as the input end of the driving mechanism and is connected to the power source; the power source can be an electrically driven motor, a cylinder driven by compressed air, or a hydraulic cylinder driven by liquid, etc.

[0103] Both ends of the screw rod 11 are movably connected to the mounting seat 13 through the second bearing 18; the screw rod 11 can rotate relative to the fixed mounting seat 13;

[0104] The outer cover of the spiral rod 11 is provided with a housing 16 (as a fixing member);

[0105] The outer peripheral surface of the sleeve 12 is formed with a first axial guide structure extending in the axial direction, and the housing 16 is provided with a second axial guide structure adapted to the first axial guide structure; the first axial guide structure cooperates with the second axial guide structure;

[0106] Specifically, the outer peripheral surface of the sliding sleeve 12 is formed with a guide groove 1201 extending in the axial direction as a first axial guide structure, and the inner wall of the housing 16 is formed with a guide protrusion 1601 that matches the guide groove 1201 of the sliding sleeve 12 as a second axial guide structure; through the cooperation between the guide groove 1201 and the guide protrusion 1601, the movable connection between the sliding sleeve 12 and the housing 16 is realized;

[0107] Of course, the first axial guide structure may be a guide protrusion, and the second axial guide structure may be a guide groove; or, the first axial guide structure and the second axial guide structure may both be guide grooves, and a plurality of intermediate parts may be arranged between the first axial guide structure and the second axial guide structure to form a guide fit, such as a ball bearing, which may also realize an active connection between the sleeve 12 and the housing 16.

[0108] The working principle of the driving mechanism of the present invention is as follows:

[0109] A power source (such as a motor) drives the screw rod 14 to rotate, and the rotation of the screw rod 14 drives the screw nut 15 to perform translational motion along the axial direction of the screw rod 14; the screw nut 15 drives the sleeve 12 to translate along the axial direction of the screw rod 11, and during the translation process, the sleeve 12 drives the screw rod 11 to rotate around its own rotation axis through the coordinated guiding effect of the spiral groove 1202 and the spiral protrusion 1102, thereby realizing a small angle rotation of the screw rod 11.

[0110] Since the sleeve 12 is movably connected to the housing 16 through the cooperation between the guide groove 1201 and the guide protrusion 1601, the translational movement of the sleeve 12 driven by the screw nut 15 can be guided by the guide groove 1201 and the guide protrusion 1601 to prevent the rotation of the screw rod 11 from affecting the linear movement of the sleeve 12.

[0111] The present invention can realize the rotation of the screw rod 11 within a small angle range (for example, not more than 360°) through a power source. The maximum rotation angle of the screw rod 11 depends on the size of the helical angle of the spiral protrusion 1102 of the screw rod 11 and the length of the screw rod 11. By adjusting the size of the helical angle of the spiral protrusion 1102 of the screw rod 11 and the length of the screw rod 11, the screw rod 11 can be rotated at a small angle within a range of not more than 180°.

[0112] Preferably, the helical angle of the spiral guide structure does not exceed 40°; wherein the helical angle of the spiral guide structure refers to the angle a between the spiral guide structure (i.e., the spiral protrusion 1102) and the rotation axis of the spiral rod 11, such as Figure 6 shown.

[0113] Since the degree of the helix angle does not exceed 40°, when the screw rod 11 of the present invention needs to rotate, the screw rod 14 is driven by the power source to rotate, and the rotation of the screw rod 14 can easily drive the screw nut 15 and the sliding sleeve 12 to perform translational motion along the axis of the screw rod 11, thereby driving the screw rod 11 to rotate. The present invention can realize the low-speed rotation of the screw rod 11 without a reduction mechanism.

[0114] During use, when the photovoltaic panel applies a torsional force to the spiral rod 11 under the action of an external force (for example, the spiral rod 11 is subjected to a huge torque due to strong wind blowing toward the photovoltaic panel), the spiral rod 11 will transmit the external force to the sliding sleeve 12; since the spiral rod 11 and the sliding sleeve 12 are connected by a spiral guide through the cooperation of the spiral protrusion 1102 and the spiral groove 1202, according to the force analysis, the spiral rod 11 will apply a thrust along the axial direction of the spiral rod 11 and a thrust along the circumferential direction of the spiral rod 11 to the sliding sleeve 12, so that the sliding sleeve 12 has a movement tendency of translation along the axial direction and rotation along the circumferential direction under the action of the thrust in the axial direction;

[0115] However, due to the guiding cooperation formed by the guide groove 1201 and the guide protrusion 1601, the sleeve 12 can only make linear motion along the axis of the screw rod 11 relative to the outer shell 16 and cannot rotate. Therefore, the thrust along the circumferential direction of the screw rod 11 received by the sleeve 12 will be directly transmitted to the outer shell 16, that is, transmitted to the component used to fix the outer shell 16.

[0116] At the same time, when the power source drives the screw rod 14 to rotate, the screw rod 14 can provide a retaining force to the sleeve 12 through the screw nut 15 , thereby offsetting the thrust force exerted on the sleeve 12 along the axial direction of the screw rod 11 .

[0117] Under the joint action of the housing 16 and the power source, the drive mechanism of the present invention can prevent the sleeve 12 from making abnormal movement relative to the screw rod 11 when encountering strong winds during operation, thereby preventing abnormal rotation of the screw rod 11 caused by strong winds.

[0118] Therefore, the spiral rod 11 of the present invention has a better ability to resist external forces, and its rotation state will not be affected by external forces.

[0119] More preferably, the helix angle of the helical guide structure is greater than 5° and less than 25°.

[0120] Obviously, the smaller the helix angle is, the smaller the thrust along the axis of the screw rod 11 is. At this time, only a smaller power source is needed to keep the screw rod 11 stationary to prevent the screw rod 11 from being rotated by the torque from the external load.

[0121] Furthermore, when the helix angle is small enough, the screw rod 11 can be kept stationary without any power source; at this time, after the external force is decomposed, the thrust along the axial direction of the screw rod 11 and the friction force between the guide groove 1201 and the guide protrusion 1601 are equal.

[0122] When the diameter of the spiral rod 11 is 50 mm, when the degree of the spiral angle of the spiral guide structure is different, the following data are measured at different angles in combination with a limited number of experiments:

[0123] When the helix angle is 40 degrees, when a force of 1000 Newtons is applied to the screw rod 11, in order to keep the screw rod 11 stationary, a force of about 850 Newtons needs to be provided along the axial direction of the screw rod 11; and in order to drive a load of 1000 Newtons, a driving force of about 1200 Newtons needs to be provided along the axial direction of the screw rod 11.

[0124] When the helix angle is 28 degrees, when a force of 1000 Newtons is applied to the screw rod 11, in order to keep the screw rod 11 stationary, a force of about 500 Newtons is required along the axial direction of the screw rod 11; and in order to drive a load of 1000 Newtons, a driving force of about 680 Newtons is required along the axial direction of the screw rod 11.

[0125] When the helix angle is 18 degrees, when a force of 1000 Newtons is applied to the screw rod 11, in order to keep the screw rod 11 stationary, a force of approximately 310 Newtons is required along the axial direction of the screw rod 11; and in order to drive a load of 1000 Newtons, a driving force of approximately 450 Newtons is required along the axial direction of the screw rod 11.

[0126] When the helix angle is 14 degrees, when a force of 1000 Newtons is applied to the screw rod 11, in order to keep the screw rod 11 stationary, a force of about 230 Newtons is required along the axial direction of the screw rod 11; and in order to drive a load of 1000 Newtons, a driving force of about 320 Newtons is required along the axial direction of the screw rod 11.

[0127] When the helix angle is 10 degrees, when a force of 1000 Newtons is applied to the screw rod 11, in order to keep the screw rod 11 stationary, a force of about 150 Newtons is required along the axial direction of the screw rod 11; and in order to drive a load of 1000 Newtons, a driving force of about 210 Newtons is required along the axial direction of the screw rod 11.

[0128] When the helix angle is 5 degrees, when a force of 1000 Newtons is applied to the screw rod 11, in order to keep the screw rod 11 stationary, a force of about 75 Newtons is required along the axial direction of the screw rod 11; and in order to drive a load of 1000 Newtons, a driving force of about 110 Newtons is required along the axial direction of the screw rod 11.

[0129] It is obvious from the above experimental data that when the degree of the helix angle is smaller, a smaller power source is needed to drive a load of the same weight. At the same time, a smaller power source is needed to keep the spiral rod 11 from rotating relative to the sleeve 12.

[0130] Therefore, the present invention can significantly reduce the power requirement of the power source of the driving mechanism, and only requires a relatively small power motor to maintain the posture of the photovoltaic panel, so that the upper surface of the photovoltaic panel can maintain a posture facing the sun. Specifically, it is embodied in:

[0131] The deadweight of the photovoltaic panel is transferred to the screw rod 11 through the housing 16 via the sleeve 12, and then to the screw rod 14; since a guide structure extending along the axial direction is provided between the housing 16 and the sleeve 12, and a spiral guide structure is provided between the sleeve 12 and the screw rod 11, the two guide structures can disperse the deadweight of the photovoltaic panel, thereby avoiding the direct impact of the deadweight of the photovoltaic panel on the screw rod 14. When the photovoltaic panel stops rotating, the two guide structures can maintain the working posture of the photovoltaic panel (such as Figure 1 Therefore, the power of the power source only needs to be able to drive the screw rod 11 to rotate, thereby reducing the power requirement for the power source.

[0132] Similarly, when the photovoltaic panel is subjected to external force (such as strong wind), the external force on the photovoltaic panel needs to be transmitted to the screw rod 11 through the housing 16 via the sleeve 12, and then to the screw rod 14; therefore, the external force will not have a direct impact on the screw rod 14 either.

[0133] Furthermore, since the degree of the helix angle of the spiral guide structure does not exceed 40°; especially when the degree of the helix angle is greater than 5° and less than 25°, the spiral guide structure can greatly reduce the force transmitted to the screw rod 14, that is, the force transmitted to the power source will be greatly reduced; the screw rod 14 only needs a small amount of additional power to offset the external force to maintain its original working posture, thereby further reducing the power requirement for the power source, that is, only a smaller power motor is needed to resist the external force.

[0134] In bad weather or special circumstances, the present invention can control the primary drive mechanism 400 and the secondary drive mechanism 301 to fold the photovoltaic panel, thereby reducing the overall impact of wind or other conditions on the photovoltaic panel, reducing wind resistance, reducing the risk of wind damage to the equipment, and making the equipment more durable. In the folded state, the photovoltaic panel can also be prevented from snow accumulation, and the power generation attenuation rate can be reduced, making the equipment more durable.

[0135] The first embodiment of the driving mechanism is characterized in that a spiral guide structure is provided between the sliding sleeve and the spiral rod, and an axial guide structure is provided between the sliding sleeve and the housing.

[0136] like Figure 7 , Figure 8As shown in the figure, as the second embodiment of the driving mechanism of the present invention, the driving mechanism includes a straight guide rod 301-11, a screw rod 301-14 is inserted into the straight guide rod 301-11, and both ends of the screw rod 301-14 are connected to the straight guide rod 301-11 through bearings 301-18; one end of the screw rod 301-14 is used as the input end of the driving mechanism and is connected to the power source; the screw rod 301-14 can rotate relative to the straight guide rod 301-11; the straight guide rod 301-11 is provided with a guide groove 301-1101 extending in the axial direction; a screw nut 301-15 is movably arranged in the guide groove 301-1101; the screw nut 301-15 is movably sleeved on the screw rod 301-14;

[0137] The screw nut 301-15 is fixedly connected to the sleeve 301-12 by means of a set screw; a threaded hole 301-1501 is provided on the screw nut 301-15, and a threaded hole 301-1201 is provided on the sleeve 301-12 for inserting the set screw;

[0138] The sliding sleeve 301-12 is movably arranged on the outer sleeve 301-16; the outer peripheral surface of the sliding sleeve 301-12 is formed with a spiral protrusion extending spirally around its axis, and the inner wall of the through hole of the outer sleeve 301-16 is formed with a spiral groove 301-1601 adapted to the spiral protrusion; the spiral protrusion and the spiral groove 301-1601 constitute a spiral guiding structure; through the cooperation of the spiral protrusion and the spiral groove 301-1601, the spiral guiding connection between the sliding sleeve 301-12 and the outer sleeve 301-16 is realized.

[0139] The working principle of the second embodiment of the driving mechanism is as follows:

[0140] The power source drives the screw 301-14 to rotate, and drives the screw nut 301-15 to perform axial translational motion in the guide groove 301-1101 of the straight guide rod 301-11; the screw nut 301-15 drives the sleeve 301-12 to translate axially along the outer sleeve 301-16, and during the translation process, the sleeve 301-12 drives the outer sleeve 301-16 to rotate around its own rotation axis through the cooperative guiding effect of the spiral guide structure, thereby realizing a small angle rotation of the outer sleeve 301-16.

[0141] The second embodiment of the driving mechanism sets the spiral guide structure between the sleeve 301-12 and the outer sleeve 301-16, and sets the axial guide structure between the sleeve 301-12 and the straight guide rod 301-11, which can also realize a small angle rotation of the outer sleeve 301-16 relative to the straight guide rod 301-11.

[0142] like Fig.15 , Fig.16As shown in the figure, as the second embodiment of the T-shaped structure of the present invention, the primary driving mechanism 300 includes a straight guide cylinder 300-11, a screw rod 300-14 is inserted into the straight guide cylinder 300-11; a screw rod nut 300-15 is movably sleeved on the screw rod 300-14; a sliding sleeve 300-12 is movably sleeved outside the straight guide cylinder 300-11; a housing 300-16 is movably sleeved outside the sliding sleeve 300-12; the screw rod nut 300-15 is fixedly connected to the sliding sleeve 300-12;

[0143] The outer periphery of the straight guide cylinder 300-11 is provided with a straight guide groove extending in the axial direction, and the inner hole of the sliding sleeve 300-12 is provided with a straight guide protrusion extending in the axial direction, so that an axial guide structure is formed between the outer periphery of the straight guide cylinder 300-11 and the inner hole of the sliding sleeve 300-12;

[0144] The outer circumference of the sliding sleeve 300-12 is provided with a spiral groove, and the inner hole of the outer shell 300-16 is provided with a spiral protrusion, so that a spiral guide structure is formed between the outer circumference of the sliding sleeve 300-12 and the inner hole of the outer shell 300-16;

[0145] Specifically, an insert 300-1501 is fixedly disposed on the outside of the screw nut 300-15, a guide slot 300-1101 extending in the axial direction is opened on the side of the straight guide cylinder 300-11, and the insert 300-1501 is movably disposed in the guide slot 300-1101 of the straight guide cylinder 300-11;

[0146] A short guide groove 300-1201 extending axially is provided on the side of the sleeve 300-12, and the insert 300-1501 is fixedly and movably arranged in the short guide groove 300-1201 of the sleeve 300-12 so that the insert 300-1501 is fixedly connected to the sleeve 300-12, thereby realizing a fixed connection between the screw nut 300-15 and the sleeve 300-12.

[0147] The housing 300-16 of the primary drive mechanism 300 is fixedly connected to one end of the straight guide rod 400-11 of the secondary drive mechanism 400 through the connecting member 20, so that the secondary drive mechanism 400 and the primary drive mechanism 300 form a T-shaped structure;

[0148] The outer movable sleeve of the straight guide rod 400-11 is provided with a guide cylinder 400-12; the outer periphery of the straight guide rod 400-11 is provided with a straight guide groove 400-1101 extending in the axial direction, and the inner hole of the guide cylinder 400-12 is provided with a straight guide protrusion extending in the axial direction, and an axial guide structure is formed between the outer periphery of the straight guide rod 400-11 and the inner hole of the guide cylinder 400-12;

[0149] One end of the inner hole of the guide cylinder 400-12 is movably connected to the screw rod 400-14 through an internal threaded hole; the outer movable sleeve of the guide cylinder 400-12 is provided with an outer cylinder 400-16; a spiral groove is provided on the outer periphery of one end of the guide cylinder 400-12, and a spiral protrusion is provided on the inner hole of the outer cylinder 400-16, and a spiral guide structure is formed between the outer periphery of one end of the guide cylinder 400-12 and the inner hole of the outer cylinder 400-16.

[0150] The working principle of the second embodiment of the driving mechanism of the present invention is as follows:

[0151] The screw 300-14 of the primary drive mechanism 300 is driven to rotate by a power source (such as a motor), and the rotation of the screw 300-14 drives the screw nut 300-15 to perform translational motion along the axial direction of the screw 300-14; the screw nut 300-15 drives the sleeve 300-12 to translate along the axial direction of the straight guide cylinder 300-11 through its insert 300-1501, and the sleeve 300-12 drives the outer shell 300-16 to rotate around its own rotation axis through the coordinated guiding effect of the spiral guide structure between the sleeve 300-12 and the outer shell 300-16 during the translation process, thereby realizing a small angle rotation of the outer shell 300-16, and then drives the secondary drive mechanism 400 and the first photovoltaic panel 100 and the second photovoltaic panel 200 connected thereto to rotate as a whole around the rotation axis of the primary drive mechanism 300, thereby realizing the rotation of the first photovoltaic panel 100 and the second photovoltaic panel 200 around the horizontal axis;

[0152] The screw 400-14 of the secondary drive mechanism 400 is driven to rotate by another power source, and the rotation of the screw 400-14 drives the guide cylinder 400-12 to make linear motion along the axial direction; since there is a spiral guide structure between the guide cylinder 400-12 and the outer cylinder 400-16, the guide cylinder 400-12 drives the outer cylinder 400-16 of the secondary drive mechanism 400 to rotate around its own rotation axis relative to the guide cylinder 400-12 during the linear motion, thereby realizing a small angle rotation of the outer cylinder 400-16; the outer cylinder 400-16 of the secondary drive mechanism 400 drives the first photovoltaic panel 100 and the second photovoltaic panel 200 to rotate around the rotation axis of the secondary drive mechanism 400, thereby realizing the rotation of the first photovoltaic panel 100 and the second photovoltaic panel 200 around the longitudinal axis.

[0153] like Figures 9 to 11 The embodiment of the clutch mechanism of the present invention is shown, the clutch mechanism comprises a fixed part 3 and a moving part 4 arranged along the axial direction of the spiral rod 11, the fixed part 3 is provided with a protrusion facing the moving part 4, and the moving part 4 is provided with a recess matched with the protrusion; when the clutch mechanism is in a connected state, the fixed part 3 and the moving part 4 can form a transmission connection through the cooperation of the protrusion and the recess;

[0154] Specifically, the facing ends of the fixed member 3 and the moving member 4 are respectively formed with connecting teeth that cooperate with each other; when the clutch mechanism is in a connected state, the fixed member 3 and the moving member 4 can be meshed and connected through the connecting teeth;

[0155] The fixed part 3 and the moving part 4 are covered with a housing 1;

[0156] The inner end surface of the fixing member 3 is connected to the housing 1 through a movable connecting member, so that relative rotational motion can occur between the fixing member 3 and the housing 1; the movable connecting member can be a bearing 2;

[0157] The other end (i.e., the opposite end) of the fixing member 3 extends out of the housing 1; the extending portion of the fixing member 3 is fixedly connected to the output end of the screw rod 11 of the secondary driving mechanism 301; the rotation of the screw rod 11 of the secondary driving mechanism 301 can drive the fixing member 3 of the clutch mechanism to rotate;

[0158] The moving part 4 is connected to the shell 1 through a guiding structure; specifically, a protrusion 4-1 is formed on the side of the moving part 4, and a groove 1-1 is provided on the shell 1; the groove 1-1 cooperates with the protrusion 4-1; the protrusion 4-1 of the moving part 4 extends into the groove 1-1 of the shell 1, thereby realizing the connection between the moving part 4 and the shell 1.

[0159] The other end (i.e., the opposite end) of the moving part 4 is connected to a plurality of evenly distributed return springs 5; the return springs 5 ​​can provide a return force to the moving part 4;

[0160] Specifically, one end of the return spring 5 abuts against the other end of the moving member 4, and the other end of the return spring 5 seals the flange of the cover 6;

[0161] In this embodiment, the cover 6 and the housing 1 are detachable independent components; obviously, the cover 6 and the housing 1 can also be integrated, in which case the return spring 5 is directly connected to the housing 1. The return spring 5 can be fixedly connected in a variety of ways, and since the fixing method of the return spring 5 is not the inventive point of the present invention, it will not be described in detail here.

[0162] The moving part 4 is sleeved on the cover 6, and the cover 6 allows the moving part 4 to maintain a coaxial state with the fixed part 3, so as to guide the translational movement direction of the moving part 4, so that the moving part 4 can only move towards or away from the fixed part 3 without deviating from the axial direction; the flange of the cover 6 is fixedly connected to the shell 1 by multiple bolts 8.

[0163] Preferably, a plurality of positioning grooves 6 - 1 are formed on the outer peripheral surface of the cover 6 , and the return spring 5 is disposed in the positioning grooves 6 - 1 . The positioning grooves 6 - 1 can guide the return spring 5 and avoid unnecessary deformation of the return spring 5 .

[0164] Of course, a single return spring may also be used, and the return spring is sleeved outside the cover 6 , which can also provide a return force to the moving part 4 .

[0165] Those skilled in the art will appreciate that the return spring may be any elastic member capable of providing a return force to the moving member 4 , and the return force may be transmitted to the moving member 4 as long as the elastic member is in direct or indirect contact with the moving member 4 .

[0166] The cover 6 is fixedly connected to the fixed end of the lever 7 by a bolt 9, thereby realizing the connection between the lever 7 and the moving part 4; the lever 7 extends radially; when the free end of the lever 7 is subjected to force, the force can be transmitted to the cover 6, and the clutch switching force is provided to the moving part 4 through the return spring 5;

[0167] When the free end of the lever 7 is subjected to a leftward external force F, the fixed end of the lever 7 can provide a rightward pulling force to the flange of the cover 6; the cover 6 transmits the pulling force to the moving part 4 through the return spring 5, so that the moving part 4 translates axially to the right, thereby separating the moving part 4 from the fixed part 3. Fig.10 As shown;

[0168] When the free end of the lever 7 loses the effect of the external force, the return spring 5 provides a leftward elastic force to the moving part 4, causing the moving part 4 to move leftward, thereby returning the moving part 4 to its original position and restoring the meshing connection state with the fixing part 3.

[0169] The clutch mechanism of the present invention is connected by the matching groove 1-1 and the protrusion 4-1, so that the shell 1 can circumferentially position the moving part 4, so that the moving part 4 can only perform relative translational movement with the shell 1, but cannot perform circumferential rotational movement between the moving part 4 and the shell 1, thereby avoiding the clutch mechanism affecting the flip angle of the photovoltaic panel.

[0170] like Fig.12 The second embodiment of the dual-axis tracking photovoltaic device with folding and wind-resistant function of the present invention is shown. The difference from the first embodiment is that the other side of the fixed bracket 500 is fixedly connected to the second primary drive mechanism 901 extending along the transverse direction, and the second primary drive mechanism 901 is connected to the second secondary drive mechanism 900 extending along the longitudinal direction; one side of the second secondary drive mechanism 900 is fixedly connected to the inner side edge of the third photovoltaic panel 700, and the other side of the second secondary drive mechanism 900 is fixedly connected to the inner side edge of the fourth photovoltaic panel 800.

[0171] The connection relationship between the second primary drive mechanism 901 and the second secondary drive mechanism 900 is the same as the connection relationship between the primary drive mechanism 400 and the secondary drive mechanism 301, and the connection relationship between the second secondary drive mechanism 900 and the third photovoltaic panel 700 and the fourth photovoltaic panel 800 is the same as the secondary drive mechanism 301 and the first photovoltaic panel 100 and the second photovoltaic panel 200, which will not be repeated here.

[0172] The second embodiment of the present invention arranges the first photovoltaic panel 100 and the second photovoltaic panel 200 (i.e., the first photovoltaic panel assembly) on one side of the vertical pole 600, and arranges the third photovoltaic panel 700 and the fourth photovoltaic panel 800 (i.e., the second photovoltaic panel assembly) on the other side of the vertical pole 600, so that the rotation axes of the first photovoltaic panel assembly and the second photovoltaic panel assembly along the horizontal axis are respectively arranged on both sides of the vertical pole 600. In the process of rotation of the photovoltaic panel assembly around the horizontal axis, no matter what posture the photovoltaic panel is in, the first photovoltaic panel 100 and the second photovoltaic panel 200 will not block the third photovoltaic panel 700 and the fourth photovoltaic panel 800, and vice versa, so that each photovoltaic panel can always keep its lighting surface at the maximum.

[0173] Preferably, the rotation axis of the primary drive mechanism 400 is parallel to the rotation axis of the second primary drive mechanism 901 .

[0174] Of course, even if the rotation axis of the first-stage drive mechanism 400 is not parallel to the rotation axis of the second-stage drive mechanism 901, as long as the width of the fixed bracket 500 is changed so that there is a sufficient distance between the first-stage drive mechanism 400 and the second-stage drive mechanism 901, mutual interference between the first photovoltaic panel assembly and the second photovoltaic panel assembly can be avoided, thereby preventing the photovoltaic panels from blocking each other and affecting the power generation efficiency.

[0175] The second embodiment of the present invention can simultaneously set four photovoltaic panels, which can increase the number of photovoltaic panels to improve the power generation capacity while balancing the force on the poles.

[0176] The working principle of the dual-axis tracking photovoltaic device with folding wind resistance function of the present invention is as follows:

[0177] The power source drives the screw rod 11 of the primary driving mechanism 400 to rotate forward or reversely, driving the secondary driving mechanism 301 and the first photovoltaic panel 100 and the second photovoltaic panel 200 connected thereto to rotate as a whole around the rotation axis of the primary driving mechanism 400, thereby realizing the rotation of the first photovoltaic panel 100 and the second photovoltaic panel 200 around the horizontal axis;

[0178] The spiral rod 11 of the secondary driving mechanism 301 is driven to rotate forward or reversely by another power source, driving the first photovoltaic panel 100 and the second photovoltaic panel 200 to rotate around the rotation axis of the secondary driving mechanism 301, thereby realizing the rotation of the first photovoltaic panel 100 and the second photovoltaic panel 200 around the longitudinal axis;

[0179] The number of rotations of the lead screw 14 of the primary drive mechanism 400 and the secondary drive mechanism 301 is controlled respectively to adjust the rotation angle of each screw rod 11, and the rotation angles of the first photovoltaic panel 100 and the second photovoltaic panel 200 around the horizontal axis and the vertical axis can be controlled respectively, thereby achieving accurate tracking of the sun.

[0180] When encountering strong winds, the power source is first used to drive the screw rod 11 of the primary driving mechanism 400 to rotate forward, and the rotation angle of the screw rod 11 of the primary driving mechanism 400 is adjusted to rotate the first photovoltaic panel 100 and the second photovoltaic panel 200 to the lowest point, so that the surfaces of the first photovoltaic panel 100 and the second photovoltaic panel 200 are close to the column 600;

[0181] At this time, the trigger member 306 of the secondary driving mechanism 301 connected to the first photovoltaic panel 100 and the second photovoltaic panel 200 contacts the vertical pole 600. Fig.13 As shown; the vertical rod 600 provides an inward pulling force to the first pull rod 304 and the second pull rod 305 through the trigger member 306, and the first pull rod 304 and the second pull rod 305 drive the lever 7 of the first clutch mechanism 302 and the second clutch mechanism 303 to move inward, thereby driving the moving member 4 of the first clutch mechanism 302 and the second clutch mechanism 303 to move in a direction away from the fixed member 3, so that the first clutch mechanism 302 and the second clutch mechanism 303 are in a separated state;

[0182] Then, the screw rod 11 of the secondary driving mechanism 301 is driven to rotate in the forward direction by another power source, and the screw rod 11 of the secondary driving mechanism 301 drives the fixing part 3 of the first clutch mechanism 302 and the second clutch mechanism 303 and the first photovoltaic panel 100 to rotate relative to the moving part 4, so that the first photovoltaic panel 100 rotates relative to the second photovoltaic panel 200, thereby realizing the flipping action between the two photovoltaic panels, and adjusting the rotation angle of the screw rod 11 of the secondary driving mechanism 301 to reduce the wind-exposed area of ​​the photovoltaic panel, thereby realizing the folding and retracting of the photovoltaic panel, such as Fig.14 shown.

[0183] When it is necessary to track sunlight, the spiral rod 11 of the primary driving mechanism 400 is driven by the power source to rotate in the opposite direction, driving the secondary driving mechanism 301 and the first photovoltaic panel 100 and the second photovoltaic panel 200 connected thereto to rotate in the opposite direction around the rotation axis of the primary driving mechanism 400 as a whole, so that the secondary driving mechanism 301 and the first photovoltaic panel 100 and the second photovoltaic panel 200 are moved away from the vertical pole 600; when the secondary driving mechanism 301 is moved away from the vertical pole 600, the trigger part 3062 of the trigger member 306 loses the reaction force of the vertical pole 600, the external force on the first pull rod 304 and the second pull rod 305 disappears, and the moving parts 4 of the first clutch mechanism 302 and the second clutch mechanism 303 are reset, so that the first clutch mechanism 302 and the second clutch mechanism 303 are in a connected state;

[0184] At this time, the first photovoltaic panel 100 and the second photovoltaic panel 200 are in a fixed connection state; the spiral rod 11 of the secondary driving mechanism 301 is driven to rotate forward or reversely by another power source, and the secondary driving mechanism 301 can drive the fixed part 3 and the moving part 4 to rotate synchronously, thereby driving the first photovoltaic panel 100 and the second photovoltaic panel 200 to rotate synchronously.

[0185] The fixing member 3 of the present invention can rotate under the drive of the secondary driving mechanism 301, so that the fixing member 3 and the moving member 4 rotate in a circumferential direction, thereby driving the first photovoltaic panel 100 to perform a flipping action relative to the second photovoltaic panel 200. Since the flipping angle of the first photovoltaic panel 100 is completely determined by the rotation angle of the secondary driving mechanism 301, the present invention can accurately control the flipping angle of the photovoltaic panel.

[0186] During the movement of the photovoltaic panel of the present invention, once the trigger member 306 contacts any object (such as the vertical pole 600), the clutch mechanism can be triggered. Therefore, the folding action of the present invention can be automatically triggered. The triggering of the clutch mechanism of the present invention does not need to rely on a sensor, which can save the cost of the clutch mechanism.

[0187] The first and second embodiments of the dual-axis tracking photovoltaic device with foldable wind-resistant function of the present invention are to fix the housing 16 of the primary drive mechanism 400 to the fixed bracket 500, the screw rod 11 of the primary drive mechanism 400 to the housing 16 of the secondary drive mechanism 301, and the screw rod 11 of the secondary drive mechanism 301 to the photovoltaic panel; that is, the housing 16 of the primary drive mechanism 400 and the secondary drive mechanism 301 are respectively used as fixed parts, and the screw rod 11 is used as a rotating part. Obviously, the screw rod 11 of the primary drive mechanism 400 and the secondary drive mechanism 301 can also be used as fixed parts, and the housing 16 can be used as a rotating part, so that the photovoltaic panel can also be rotated around the horizontal axis and around the vertical axis.

[0188] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these changes and modifications.

Claims

1. A dual-axis tracking photovoltaic bracket with folding and wind-resistant function, characterized in that: include: Fixed bracket, A primary drive mechanism, wherein a fixed part and a rotating part of the primary drive mechanism can rotate relative to each other; the fixed part of the primary drive mechanism is fixedly connected to the fixed bracket; as well as A secondary drive mechanism, wherein a fixed part and a rotating part of the secondary drive mechanism can rotate relative to each other; The fixing member of the secondary driving mechanism is fixedly connected to the rotating member of the primary driving mechanism, and the output end of the rotating member of the secondary driving mechanism is fixedly connected to the clutch mechanism, and the clutch mechanism is used to be fixedly connected to the photovoltaic panel; The rotation axis of the primary drive mechanism extends in the transverse direction; the rotation axis of the secondary drive mechanism extends in the longitudinal direction; The primary drive mechanism and / or the secondary drive mechanism further comprises an intermediate member, the intermediate member is movably connected to the rotating member, and the intermediate member and the rotating member are guided and connected via a first guide structure; the intermediate member is movably connected to the fixed member, and the intermediate member and the fixed member are guided and connected via a second guide structure; The clutch mechanism comprises a clutch mechanism fixing part and a clutch mechanism moving part which are arranged relatively to each other; under the action of external force, the clutch mechanism moving part of the clutch mechanism can move relative to its clutch mechanism fixing part, so that the clutch state of the clutch mechanism is switched.

2. The dual-axis tracking photovoltaic bracket with foldable wind resistance function according to claim 1 is characterized in that: The fixed parts of the primary drive mechanism and the secondary drive mechanism are shells, and the rotating parts of the primary drive mechanism and the secondary drive mechanism are screw rods; Alternatively, the fixing parts of the primary drive mechanism and the secondary drive mechanism are screw rods, and the rotating parts of the primary drive mechanism and the secondary drive mechanism are housings; Alternatively, the fixed part of the primary drive mechanism is a screw rod, and the rotating part of the primary drive mechanism is a housing; The fixed part of the secondary drive mechanism is a housing, and the rotating part of the secondary drive mechanism is a screw rod; Alternatively, the fixed part of the primary drive mechanism is a housing, and the rotating part of the primary drive mechanism is a screw rod; the fixed part of the secondary drive mechanism is a screw rod, and the rotating part of the secondary drive mechanism is a housing; The intermediate parts of the primary driving mechanism and the secondary driving mechanism are sliding sleeves.

3. The dual-axis tracking photovoltaic bracket with foldable wind resistance function according to claim 1, characterized in that: The first guiding structure is a spiral guiding structure; the second guiding structure is an axial guiding structure; or, the first guiding structure is an axial guiding structure; the second guiding structure is a spiral guiding structure.

4. The dual-axis tracking photovoltaic bracket with foldable wind resistance function according to claim 1, characterized in that: It also includes a pull rod, one end of which is connected to the moving part of the clutch mechanism.

5. The dual-axis tracking photovoltaic bracket with foldable wind resistance function according to claim 4, characterized in that: It also includes a trigger member, which includes a connecting part for connecting the other end of the pull rod and a trigger part for receiving the external force; when the trigger part is subjected to force, the external force can be transmitted to the pull rod through the connecting part, thereby providing the external force to the clutch mechanism moving part of the clutch mechanism.

6. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 5, characterized in that: The trigger portion is a protrusion on the trigger member in a direction away from the driving shaft.

7. The dual-axis tracking photovoltaic bracket with foldable wind resistance function according to claim 1, characterized in that: When the clutch mechanism is in a connected state, a surface contact fit is formed between the clutch mechanism fixing part and the clutch mechanism moving part.

8. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 7, characterized in that: The clutch mechanism fixing part is provided with a protrusion facing the moving part, and the clutch mechanism moving part is provided with a recess matched with the protrusion; when the clutch mechanism is in a connected state, the clutch mechanism fixing part and the clutch mechanism moving part can form a transmission connection through the cooperation of the protrusion and the recess.

9. The dual-axis tracking photovoltaic support with foldable wind-resistant function according to claim 1, characterized in that: The clutch mechanism also includes: A housing, the housing covering the exterior of the clutch mechanism fixing part and the clutch mechanism moving part, and the housing and the clutch mechanism fixing part can undergo relative rotational motion; and A guide structure is used to realize circumferential positioning connection between the clutch mechanism moving part and the shell.

10. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 9, characterized in that: The guide structure includes a groove opened in the shell and a protrusion formed on the moving part; or, the guide structure includes a protrusion opened in the shell and a groove formed on the moving part; the protrusion is matched with the groove.

11. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 1, characterized in that: The clutch mechanism also includes: A shifting rod, one end of which is connected to the moving part, and the other end of which is a free end; when the free end of the shifting rod is subjected to force, the external force can be provided to the moving part.

12. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 11, characterized in that: The clutch mechanism further comprises an elastic member, wherein the elastic member is connected to the moving member; when the external force disappears, the elastic member can provide a restoring force to the moving member.

13. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 1, characterized in that: The primary driving mechanism and / or the secondary driving mechanism further comprises: A driven member fixedly connected to the intermediate member; and The active member is connected to the power source; under the drive of the power source, the active member drives the driven member, which can drive the intermediate member to perform linear motion along the axial direction of the rotating member.

14. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 3, characterized in that: The helix angle of the helical guide structure does not exceed 40°.

15. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 3, characterized in that: The helix angle of the helical guide structure is greater than 5° and less than 25°.

16. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 13, characterized in that: The active part is a screw rod, and the driven part is a screw nut; the screw rod rotates, driving the screw nut and the sliding sleeve to translate along the axial direction of the screw rod, causing relative rotation between the screw rod and the sliding sleeve, thereby realizing relative rotation between the screw rod and the housing.

17. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 16, characterized in that: The sliding sleeve is provided with a through hole, and the sliding sleeve is sleeved on the spiral rod through the through hole; the spiral guide structure is a spiral groove arranged on the inner wall of the through hole, and a spiral protrusion arranged on the outer peripheral surface of the spiral rod; Alternatively, the spiral guide structure is a spiral protrusion provided on the inner wall of the through hole, and a spiral groove provided on the outer peripheral surface of the spiral rod; Alternatively, the spiral guide structure is a first spiral groove respectively arranged on the inner wall of the through hole, a second spiral groove arranged on the outer circumference of the spiral rod, and a plurality of balls arranged between the first spiral groove and the second spiral groove.

18. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 16, characterized in that: The outer peripheral surface of the sleeve is formed with a first axial guide structure extending axially, and the outer shell is provided with a second axial guide structure adapted to the first axial guide structure; the first axial guide structure and the second axial guide structure constitute the axial guide structure between the sleeve and the outer shell.

19. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 18, characterized in that: The first axial guide structure is a guide protrusion, and the second axial guide structure is a guide groove; Alternatively, the first axial guiding structure is a guiding groove, and the second axial guiding structure is a guiding protrusion; Alternatively, it also includes a guide structure middle piece, the first axial guide structure and the second axial guide structure are both guide grooves, the guide structure middle piece is arranged between the first axial guide structure and the second axial guide structure, and the guide fit is formed by the guide structure middle piece.

20. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 1, characterized in that: The primary drive mechanism is divided into two groups; the two groups of primary drive mechanisms are respectively fixedly arranged on both sides of the fixed bracket.

21. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 20, characterized in that: The rotation axes of the two groups of primary drive mechanisms are parallel to each other.

22. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 1, characterized in that: The clutch mechanism is divided into two groups; the clutch mechanism fixing member of the first clutch mechanism is fixedly connected to the first output end of the rotating member of the secondary drive mechanism, and the clutch mechanism fixing member of the second clutch mechanism is fixedly connected to the second output end of the rotating member of the secondary drive mechanism.

23. The dual-axis tracking photovoltaic support with foldable wind resistance function according to claim 1, characterized in that: Also includes: A vertical pole is fixedly connected to the fixed bracket; the vertical pole extends vertically.

24. A dual-axis tracking photovoltaic device with foldable wind resistance function, characterized in that: A dual-axis tracking photovoltaic bracket with foldable wind-resistant function as claimed in any one of claims 1 to 23, wherein one side of the secondary drive mechanism of the dual-axis tracking photovoltaic bracket is connected to the side of the first photovoltaic panel, and the other side of the secondary drive mechanism is connected to the side of the second photovoltaic panel; the side of the first photovoltaic panel is fixedly connected to the clutch mechanism fixing part of the clutch mechanism, and the side of the second photovoltaic panel is fixedly connected to the clutch mechanism moving part of the clutch mechanism; When the rotating member of the primary driving mechanism rotates relative to its fixed member, the secondary driving mechanism and the first photovoltaic panel and the second photovoltaic panel fixedly connected thereto can be driven to rotate around the rotation axis of the primary driving mechanism, thereby realizing the rotation of the first photovoltaic panel and the second photovoltaic panel around the horizontal axis; When the rotating member of the secondary driving mechanism rotates relative to the fixed member thereof, the first photovoltaic panel and the second photovoltaic panel can be driven to rotate around the rotation axis of the secondary driving mechanism, thereby realizing the rotation of the first photovoltaic panel and the second photovoltaic panel around the longitudinal axis; When the clutch mechanism is in a connected state, the rotation of the rotating part of the secondary drive mechanism can drive the clutch mechanism fixed part and the clutch mechanism moving part of the clutch mechanism to rotate synchronously, thereby driving the first photovoltaic panel and the second photovoltaic panel to rotate synchronously; when the clutch mechanism is in a disconnected state, the rotation of the rotating part of the secondary drive mechanism can drive the clutch mechanism fixed part of the clutch mechanism to rotate relative to the clutch mechanism moving part, thereby driving the first photovoltaic panel to rotate relative to the second photovoltaic panel.

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