Folding solar power generation device

Abstract

The invention discloses a folding type solar power generation device which comprises a base support, N photovoltaic panel units and a control system, and N is larger than or equal to 1. Each group of photovoltaic panel unit comprises a top plate, a middle frame plate and a bottom plate, and two groups of stacked photovoltaic flat plates are respectively arranged above and below the middle frame plate; the middle frame plate and the top plate are provided with two groups of first rotating shafts, and the two groups of photovoltaic panels between the middle frame plate and the top plate are respectively fixed with the two first rotating shafts; the middle frame plate and the bottom plate are provided with two groups of second rotating shafts, and the two groups of photovoltaic panels between the middle frame plate and the bottom plate are respectively fixed with the two second rotating shafts; a transmission mechanism used for driving the photovoltaic panels to be unfolded or folded synchronously is connected between the rotating shafts. According to the invention, synchronous unfolding and folding of multiple layers of solar panels can be realized, and the solar panel has a small storage size and a large unfolding area; the device is placed on the ground through the base support, and the inclination angle of the mechanism can be adjusted; and a plurality of photovoltaic panel units can be combined for use. The device has the advantages of being large in folding and unfolding ratio, good in mobility, convenient to operate and the like, and has wide application prospects.

Description

Technical Field

[0001] The invention relates to the field of use of solar photovoltaic panels, and in particular to a foldable solar power generation device. Background Art

[0002] At present, solar photovoltaic power generation technology is becoming more and more mature and is widely used in aerospace, transportation, communications, construction, outdoor equipment and other fields. With the continuous development and progress of technology, and the advancement of carbon peak and carbon neutrality, photovoltaic power generation technology will have a more important position in energy strategy.

[0003] Due to the limitation of photovoltaic power generation efficiency, to obtain more power generation, the power generation area must be increased. However, for application scenarios such as outdoor solar power generation, there are requirements such as strong mobility, small storage size, and sufficient power. Most of the existing outdoor solar power generation equipment is difficult to store or is too small to be folded and unfolded, which makes it difficult to meet the above requirements.

[0004] In summary, the foldable solar power generation device with a large folding / expansion ratio, good mobility and high power generation capacity has broad application prospects. Summary of the invention

[0005] In view of the above-mentioned prior art, the present invention provides a foldable solar power generation device, which can be folded and stored when not in use, has a small size and good mobility; when in use, it can be unfolded to expand the power generation area and increase the power generation, thus meeting the needs of users for a large folding and unfolding ratio, good mobility and high power generation.

[0006] In order to solve the above technical problems, the present invention proposes a foldable solar power generation device, including a base support, N groups of photovoltaic panel units and a control system, N is greater than or equal to 1; each group of photovoltaic panel units includes a top plate, an intermediate frame plate and a bottom plate arranged from top to bottom, and a plurality of stacked photovoltaic flat plates are respectively arranged between the top plate and the intermediate frame plate and between the intermediate frame plate and the bottom plate, and the plurality of photovoltaic flat plates are divided into a first group of photovoltaic flat plates and a second group of photovoltaic flat plates, each group including two photovoltaic flat plates; the intermediate frame plate and the top plate are respectively provided with first rotating shafts at two vertex angles of a vertex line of the same rectangle, and the first group of photovoltaic flat plates and the second group of photovoltaic flat plates located between the intermediate frame plate and the top plate are respectively fixed to the two first rotating shafts; the Second rotating shafts are respectively provided on the middle frame plate and the bottom plate at the two vertices of the other vertices of the rectangle, and the first group of photovoltaic panels and the second group of photovoltaic panels located between the middle frame plate and the bottom plate are respectively fixed to the two second rotating shafts; a transmission mechanism for driving each group of photovoltaic panels to be synchronously unfolded or retracted is connected between the two first rotating shafts and the two second rotating shafts, and the transmission mechanism is one of the following three structural forms: a rope pulley transmission mechanism driven by a motor, a gear and synchronous belt combination transmission mechanism driven by a motor, and a groove wheel and synchronous belt combination transmission mechanism driven by a motor; the transmission mechanism is provided with a locking structure; the base bracket includes a support plate and an inclination adjustment device, and the bottom plate of each group of photovoltaic panel units is connected to the support plate of the base bracket.

[0007] Furthermore, the foldable solar power generation device of the present invention, wherein:

[0008] The locking structure is a mechanical locking structure or an electromagnetic locking structure. The mechanical locking structure is a ratchet mechanism or a mechanical brake. The electromagnetic locking structure is an electromagnetic adsorption structure or an electromagnetic clutch.

[0009] The control system includes a solar controller, a voltage converter, an inverter and a battery pack; the solar controller realizes the maximum power point tracking control of the photovoltaic panel, the voltage converter completes the step-down or step-up conversion between the DC input voltage and the output voltage, the inverter completes the conversion from DC to AC, and the battery pack is used for low-power power generation and temporary energy storage in a non-charging state; the control system monitors the voltage, current, power, and battery power data during solar power generation and charging in real time, and counts and records the charging and power generation time and the cumulative charging data by year, month, day, and hour, and the control system is connected to the upper computer display panel or provides the above data to the user by remote communication.

[0010] The base bracket is a lifting bracket, and the inclination adjustment device is a sliding rod mechanism and a driving structure, or a connecting rod mechanism and a driving structure. Most driving structures are any one of an electric cylinder, a pneumatic cylinder and a hydraulic cylinder; the driving structure is connected to the solar controller.

[0011] The number of photovoltaic panel units N=2, the arrangement of the two groups of photovoltaic panel units and the unfolding and folding of the photovoltaic flat panels have one of the following two situations:

[0012] One situation is: the two groups of photovoltaic panel units are placed side by side on the support plate of the base bracket with the light-receiving surface facing downward, the bottom plate edges of the two groups of photovoltaic panel units are rotationally connected to a group of opposite sides of the support plate through a rotating pair, and a group of folding torque compensation mechanisms are provided at the connection of the rotating pair. Folding limit plates are fixed on both sides of the base bracket, and the folding limit plates are flush with the upper plane of the support plate of the base bracket; when the two groups of photovoltaic panel units are unfolded, the two groups of photovoltaic panel units are respectively turned around their respective rotating pairs to the outside of the support plate, and the rotation angle is 180°, and the folding torque compensation mechanism supports the folded photovoltaic panel units; then, the photovoltaic flat panels of each group of photovoltaic panel units are unfolded by a transmission mechanism for driving each group of photovoltaic flat panels to unfold or retract synchronously; when the two groups of photovoltaic panel units are folded, the photovoltaic flat panels of each group of photovoltaic panel units are first retracted by a transmission mechanism for driving each group of photovoltaic flat panels to unfold or retract synchronously, and then, the two groups of photovoltaic panel units are respectively turned around their respective rotating pairs to the inside of the support plate, and the rotation angle is 180°.

[0013] Another situation is: two groups of photovoltaic panel units are placed side by side on the support plate of the base bracket with the light-receiving surface facing upward, and the bottom plate of each group of photovoltaic panel units is connected to the support plate by two groups of parallel linear slide mechanisms. When the two groups of photovoltaic panel units are unfolded, the two groups of photovoltaic panel units move toward the outside of the support plate simultaneously along the linear guide rails of their two groups of linear slide mechanisms, and the moving distance is determined according to the area of ​​the photovoltaic flat plate; then, the photovoltaic flat plates of each group of photovoltaic panel units are unfolded by a transmission mechanism for driving each group of photovoltaic flat plates to be unfolded or retracted synchronously; when the two groups of photovoltaic panel units are folded and unfolded, the photovoltaic flat plates of each group of photovoltaic panel units are first retracted by a transmission mechanism for driving each group of photovoltaic flat plates to be unfolded or retracted synchronously, and then, the two groups of photovoltaic panel units move toward the inside of the support plate to the initial position simultaneously along the linear guide rails of the linear slide mechanism.

[0014] The number of photovoltaic panel units N=4, the arrangement of the four photovoltaic panel units and the unfolding and folding of the photovoltaic panels have one of the following two situations:

[0015] One situation is: the area of ​​the support plate of the base bracket covers the area of ​​four groups of photovoltaic panel units, the four groups of photovoltaic panel units are arranged on the support plate with the light-receiving surface facing upward in a 2×2 matrix position, the bottom plate of the four groups of photovoltaic panel units is rotatably connected to the four top corners of the support plate through a rotating shaft assembly, and the axis of the rotating shaft assembly is perpendicular to the bottom plate; when the four groups of photovoltaic panel units are unfolded, the four groups of photovoltaic panel units are respectively rotated 180° around the axis of the rotating shaft assembly rotatably connected to the support plate; then, the photovoltaic panels of each group of photovoltaic panel units are unfolded by a transmission mechanism for driving each group of photovoltaic panels to be synchronously unfolded or retracted; when the two groups of photovoltaic panel units are folded and unfolded, the photovoltaic panels of each group of photovoltaic panel units are first retracted by a transmission mechanism for driving each group of photovoltaic panels to be synchronously unfolded or retracted, and then, the four groups of photovoltaic panel units are respectively rotated 180° around the axis of the rotating shaft assembly rotatably connected to the support plate.

[0016] Another situation is: the area of ​​the support plate of the base support covers the area of ​​four groups of photovoltaic panel units, the four groups of photovoltaic panel units are arranged on the support plate with the light-receiving surface facing downward and in a 2×2 matrix position, the top plates of the four groups of photovoltaic panel units are respectively rotatably connected to the four vertex corners of the support plate, and the rotational sub-axis of each rotational connection is perpendicular to the diagonal of the vertex where it is located; a group of folding torque compensation mechanisms are provided at the rotational sub-connection; folding limit plates are fixed on both sides of the base support, and the folding limit plates are flush with the upper plane of the support plate of the base support; when the four groups of photovoltaic panel units are unfolded, the four groups of photovoltaic panel units are respectively rotated 180° around their respective rotational pairs with the support plate; then, the photovoltaic flat panels of each group of photovoltaic panel units are unfolded by a transmission mechanism used to drive each group of photovoltaic flat panels to be unfolded or retracted synchronously; when the two groups of photovoltaic panel units are folded, the photovoltaic flat panels of each group of photovoltaic panel units are first retracted by a transmission mechanism used to drive each group of photovoltaic flat panels to be unfolded or retracted synchronously, and then, the four groups of photovoltaic panel units are respectively rotated back 180° around their respective rotational pairs with the support plate.

[0017] The structure of the folding moment compensation mechanism in the present invention mainly includes a folding support rod, a pull line, a fixed pulley, a hook, a tension spring and a tension spring fixing support.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present invention has a large folding and unfolding ratio, with a small area in the folded state and a large area in the unfolded state, thereby increasing the effective power generation area and improving the power generation capacity.

[0020] (2) The present invention adopts a folding structure, and the entire mechanism can be automatically or manually unfolded and folded, which is easy to operate.

[0021] (3) The present invention has a compact volume after being folded and is not fixedly installed, so it has good mobility.

[0022] (4) The present invention has a tilt adjustment mechanism, which can improve power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a single-group folding solar power generation device of the present invention;

[0024] Figure 2 yes Figure 1 A schematic diagram of the structure of a group of photovoltaic panel units shown in;

[0025] Figure 3 yes Figure 2 The schematic diagram of the structure of the photovoltaic panel unit shown is a middle frame plate and the following parts;

[0026] Figure 4 yes Figure 3 A schematic diagram of the first photovoltaic flat panel and the second photovoltaic flat panel after unfolding in the structure shown;

[0027] Figure 5 It is a schematic diagram of the transmission relationship of the transmission mechanism of the present invention as a rope wheel transmission structure;

[0028] Figure 6 yes Figure 5 The overall schematic diagram of the rope pulley transmission mechanism shown;

[0029] Figure 7 It is an overall schematic diagram of a transmission mechanism in which the transmission mechanism of the present invention is a transmission mechanism composed of gears and synchronous belts;

[0030] Figure 8 yes Figure 7 Schematic diagram of transmission relationship of gear and synchronous belt combined transmission mechanism shown in;

[0031] Fig. 9 yes Figure 8 The overall schematic diagram of the gear and synchronous belt combined transmission mechanism shown;

[0032] Fig.10 It is an overall schematic diagram of a transmission mechanism in which the transmission mechanism of the present invention is a combined transmission mechanism of a sheave and a synchronous belt;

[0033] Fig.11 yes Fig.10 The transmission relationship diagram of the combined transmission mechanism of the groove wheel and the synchronous belt is shown;

[0034] Fig.12 Schematic diagram of a base bracket in which the tilt adjustment device of the present invention is a sliding rod structure;

[0035] Fig.13 It is a schematic diagram of the base support supporting the photovoltaic panel unit when the tilt adjustment device in the present invention is a connecting rod structure;

[0036] Fig.14 yes Fig.13 The base bracket is shown in a folded state;

[0037] Fig.15 yes Fig.13 A schematic diagram of the structure of the base bracket shown in;

[0038] Fig.16 It is a schematic diagram of an overall device with two sets of photovoltaic panel units and a linear slide mechanism based on a sliding type in the present invention;

[0039] Fig.17 It is a schematic diagram of the overall device structure and folding direction of two groups of photovoltaic panel units based on the folding type in the present invention;

[0040] Fig.18 yes Fig.17 The top angled view shown;

[0041] Fig.19 yes Fig.17 Schematic diagram of the folding torque compensation mechanism shown in;

[0042] Fig. 20 yes Fig.16 or Fig.17 The state diagram of the photovoltaic panels in the two groups of photovoltaic panel units after unfolding;

[0043] Fig.21 It is a schematic diagram of the overall device structure and rotation direction of four groups of rotating photovoltaic panel units in the present invention;

[0044] Fig. 22 yes Fig.21 Schematic diagram of the rotating structure shown in;

[0045] Fig.23 This is a front view of the overall device structure of the present invention based on four groups of foldable photovoltaic panel units;

[0046] Fig.24 yes Fig.23 The overall device and its folding direction schematic diagram shown;

[0047] Fig.25 yes Fig.24 Schematic diagram of the folding torque compensation mechanism shown in

[0048] Fig.26 yes Fig.21 or Fig.24 The state diagram of the photovoltaic panels in the four groups of photovoltaic panel units after unfolding;

[0049] In the figure:

[0050] 1- Photovoltaic panel unit 11a- Top plate 11b- Middle frame plate 11c- Bottom plate

[0051] 12a-first photovoltaic panel 12b-second photovoltaic panel 13-locking mechanism 14-ropes transmission mechanism

[0052] 141-transmission rope 15a-first rotating shaft 151-first rotating wheel 152-second rotating wheel

[0053] 15b- second rotating shaft 154- shaft sleeve 155- shaft sleeve upper pressure cover 156 upper pressure cover

[0054] 157-shaft sleeve lower cover 16-first shaft assembly 161-first gear 162-second gear

[0055] 163-first rotating shaft 164-shaft sleeve 165-first groove wheel 166-second groove wheel

[0056] 17-second rotating shaft assembly 171-third gear 172-fourth gear 173-synchronizing wheel

[0057] 174- third rotating shaft 175- motor 176- groove wheel dial 177- first groove wheel claw

[0058] 178-second groove wheel claw 18-synchronous belt 2-base bracket 21-base

[0059] 211-cross bar 212-support leg 213-support bar 1 214-support bar 2

[0060] 21a-rotation pair 1 21b-rotation pair 2 21c-rotation pair 3 21d-rotation pair 4

[0061] 22-sliding rod type tilt adjustment bracket 221-sliding rod 222-sliding groove 223-locking pin

[0062] 224-spring 225-ratchet groove 22a-rotation pair five 22b-rotation pair six

[0063] 23-Link type tilt adjustment bracket 231-Big arm electric cylinder 232-Big arm connecting rod 233-Forearm electric cylinder

[0064] 234- small arm connecting rod 235- top plate electric cylinder 236- top plate 237- mounting seat

[0065] 23a-rotation pair 23b-rotation pair 3-power supply control system 4-linear guide rail mechanism

[0066] 41- linear guide 42- slider 5- folding torque compensation mechanism 51- folding support rod

[0067] 51a-rotation pair 51b-rotation pair 52-pull wire 53-fixed pulley

[0068] 54-hook 55-tension spring 56-tension spring fixed support 6-rotating shaft assembly

[0069] 61-rotating shaft 62-bearing 63-rotating shaft mounting plate 7-folding torque compensation mechanism

[0070] 71-folding plate 71a-rotation pair 72-folding support rod 73-pull wire

[0071] 74-fixed pulley 75-hook 76-tension spring 77-tension spring fixed support

[0072] 78-Mounting plate. DETAILED DESCRIPTION

[0073] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are by no means intended to limit the present invention in any way.

[0074] like Figure 1 As shown, a foldable solar power generation device proposed by the present invention includes a base support 2, N groups of photovoltaic panel units 1 and a control system 3. The number of photovoltaic panel units 1 is N≥1, and the structures of the N groups of photovoltaic panel units 1 are the same. The base support 2 includes a support plate and an inclination adjustment device, and the inclination adjustment device has a driving structure. The bottom plate 11c of each group of photovoltaic panel units is connected to the support plate of the base support 2. The base support 2 can support and set up all the photovoltaic panel units, and place the entire foldable solar power generation device on an open ground.

[0075] Example 1: Single-group foldable solar power generation device

[0076] Figure 1 The structure of a single-group folding solar power generation device according to Embodiment 1 of the present invention is shown, comprising a base support 2, a group of photovoltaic panel units 1 and a control system 3. Figure 2The structure of one group of photovoltaic panel units 1 is shown, and the photovoltaic panel unit 1 includes a frame and a plurality of photovoltaic flat panels. The frame includes a top plate 11a, an intermediate frame plate 11b and a bottom plate 11c, and is arranged from top to bottom. Multiple stacked photovoltaic flat panels 12 are provided between the top plate 11a and the intermediate frame plate 11b and between the intermediate frame plate 11b and the bottom plate 11c, respectively, and are divided into two groups, namely a first group of photovoltaic flat panels and a second group of photovoltaic flat panels, each group including two photovoltaic flat panels. The middle frame plate 11b and the top plate 11a are respectively provided with first rotating shafts 15a at two vertices of a vertices line of the same rectangle, and the first group of photovoltaic panels and the second group of photovoltaic panels located between the middle frame plate 11b and the top plate 11a are respectively fixed to the two first rotating shafts 15a; the middle frame plate 11b and the bottom plate 11c are respectively provided with second rotating shafts 15b at two vertices of another vertices line of the rectangle, and finally, the first photovoltaic panel 12a and the second photovoltaic panel 12b are both installed in the frame through the rotating shafts. Figure 3 The structure of the middle frame plate 11b and the following parts in the photovoltaic panel unit is shown. Two groups of photovoltaic flat panels (each including a first group of photovoltaic flat panels 12a and a second group of photovoltaic flat panels 12b) located between the middle frame plate 11b and the bottom plate 11c are respectively fixed to two second rotating shafts 15b; a transmission mechanism for driving each group of photovoltaic flat panels to be synchronously unfolded or retracted is connected between the two first rotating shafts 15a and the two second rotating shafts 15b, and the transmission mechanism is driven by a motor and is provided with a locking structure.

[0077] Figure 4 The first photovoltaic panel 12a and the second photovoltaic panel 12b between the middle frame panel 11b and the bottom panel 11c are shown after being rotated and unfolded around the second rotation axis 15b. Figure 5 As shown, Figure 4Taking the rotating shaft at the lower left corner as an example, the connection and transmission relationship between the first photovoltaic panel 12a and the second photovoltaic panel 12b and the second rotating shaft 15b is described. The second rotating shaft 15b is equipped with a sleeve 154, and the upper part of the sleeve 154 is rotatably connected to the middle frame plate 11b through a rolling bearing. The second rotating wheel 152, the sleeve upper pressure cover 155, and the first rotating wheel 151 are installed in sequence on the upper end of the sleeve 154 and from the top of the middle frame plate 11b, and the first rotating wheel 151 is fixed by the upper pressure cover 156. The lower end of the sleeve 154 is fixed with a sleeve lower pressure cover 157. The lower part of the second rotating shaft 15b is installed with the first photovoltaic panel 12a and the bottom plate 11c in sequence from the bottom of the sleeve lower pressure cover 157. The bottom plate 11c and the second rotating shaft 15b are rotatably connected through a rolling bearing. The second rotating shaft 15b and the shaft sleeve 154 are coaxially arranged and can rotate relative to each other, and are installed on the middle frame plate 11b and the bottom plate 11c of the frame through a rotating pair (rolling bearing or shaft sleeve), the first rotating wheel 151 is fixedly connected to the upper shaft head of the second rotating shaft 15b, and the second photovoltaic panel 12b and the second rotating wheel 152 are both fixedly connected to the shaft sleeve 154; in this embodiment, the first rotating wheel 151 is arranged above the second rotating wheel 152, and the second rotating wheel 152 is arranged above the middle frame plate 11b of the frame; the first photovoltaic panel 12a and the second photovoltaic panel 12b are installed below the middle frame plate 11b.

[0078] In the present invention, the structure of the transmission mechanism used to drive each group of photovoltaic panels to be synchronously deployed or retracted is one of the following three structures: a rope pulley transmission mechanism driven by a motor, a gear and synchronous belt combination transmission mechanism driven by a motor, and a groove wheel and synchronous belt combination transmission mechanism driven by a motor. The locking structure provided in the transmission mechanism is a mechanical locking structure or an electromagnetic locking structure, the mechanical locking structure is a ratchet mechanism or a mechanical brake; the electromagnetic locking structure is an electromagnetic adsorption structure or an electromagnetic clutch.

[0079] like Figure 6 As shown, in this embodiment, the transmission mechanism 14 adopts a rope wheel transmission mechanism driven by a motor, and the transmission mechanism includes a transmission rope 141. The locking structure 13 provided in the transmission mechanism is an electromagnetic adsorption structure, specifically an electromagnetic brake installed on the middle frame plate 11b of the frame, and the electromagnetic brake can be used to lock and unlock the movement of the transmission rope 141; Figure 2 As shown, after the two groups of multi-layer photovoltaic panels 12 are stacked and installed, there are four groups of rotating shafts (two first rotating shafts 15a and two second rotating shafts 15b), as shown in FIG. Figure 6As shown, the winding of the transmission rope 141 is: starting from the rotating shaft at ① on the left side, in a counterclockwise order, in the order of: the second rotating wheel 152 at ① → locking mechanism 13 → the first rotating wheel 151 at ② → the second rotating wheel 152 at ③ → the first rotating wheel 151 at ④ → the first rotating wheel 151 at ① → the second rotating wheel 152 at ② → the first rotating wheel 151 at ③ → the second rotating wheel 152 at ④ → winding back to the second rotating wheel 152 at ①. It can realize the synchronous unfolding and folding of the four groups of multi-layer photovoltaic panels 12; the diameter of the second rotating wheel 152 is twice the diameter of the first rotating wheel 151, which can realize that the angular velocity of the first photovoltaic panel 12a is twice the angular velocity of the second photovoltaic panel 12b. It should be noted that the first rotating wheel 151 and the second rotating wheel 152 with different diameters and different winding orders and directions can realize the unfolding and retracting of the multi-layer photovoltaic panel 12 in different directions and at different speeds.

[0080] The control system 3 includes a solar controller, a voltage converter, an inverter and a battery pack; the driving structure of the tilt adjustment device is connected to the solar controller, and the solar controller is used for the maximum power point tracking control of the photovoltaic flat panel, so that the tilt adjustment of the foldable solar power generation device can be realized, and the power generation of the solar power generation device can be improved. The voltage converter completes the buck or boost conversion between the DC input voltage and the output voltage, the inverter completes the conversion from DC to AC, and the battery pack is used for low-power power generation and temporary energy storage in a non-charging state. The voltage converter completes the buck or boost conversion between the DC input voltage and the output voltage, the inverter completes the conversion from DC to AC, and the battery pack is used for low-power power generation and temporary energy storage in a non-charging state; the control system 3 monitors the voltage, current, power, and battery power data in real time during solar power generation and charging, and counts and records the charging and power generation time and the cumulative charging data in years, months, days, and hours. The control system 3 is connected to the upper computer display panel or provides the above data to the user in a remote communication mode. As for how to realize the function of the control system 3, it belongs to mature technology and will not be repeated here. Those skilled in the art can perform programming according to the above functions achieved by the control system 3, and the programming method and software are not limited in the present invention.

[0081] In the present invention, the inclination adjustment device in the base bracket 2 has two different structural forms, one is a sliding rod mechanism and a driving structure, and the other is a connecting rod mechanism and a driving structure; the driving structure is any one of an electric cylinder, a pneumatic cylinder and a hydraulic cylinder.

[0082] Embodiment 2, transmission mechanism in the form of a combination of gears and synchronous belts

[0083] like Figure 7As shown, the transmission mechanism can also be a transmission mechanism in the form of a combination of gears and synchronous belts, and the transmission mechanism includes four groups of first rotating shaft assemblies 16, four groups of second rotating shaft assemblies 17 and synchronous belts 18; Figure 8 As shown, Figure 7 The structure and connection relationship of the transmission mechanism are described by taking the first rotating shaft assembly 16 and the second rotating shaft assembly 17 on the left side as examples. The first rotating shaft assembly 16 includes a sleeve 164 arranged on the second rotating shaft 15b, and also includes a first gear 161 and a second gear 162; the second rotating shaft assembly 17 includes a third gear 171, a fourth gear 172, a third rotating shaft 174 and a motor 175; the second rotating shaft 15b and the sleeve 164 are coaxially arranged and can rotate relative to each other, and are installed on the frame (in this embodiment, the middle frame plate 1 of the frame) through a rotating pair. 1b and base plate 11c), the first photovoltaic panel 12a and the first gear 161 are both fixedly connected to the second rotating shaft 15b, and the second photovoltaic panel 12b and the second gear 162 are both fixedly connected to the shaft sleeve 164; the third gear 171 and the fourth gear 172 are both fixedly connected to the third rotating shaft 174 and mesh with the first gear 161 and the second gear 162 respectively, and a synchronous wheel 173 is fixedly connected to the third rotating shaft 174, and a synchronous belt 18 is arranged on the synchronous wheel 173 of the four second rotating shaft assemblies 17. The motor 175 is connected to the third rotating shaft 174 in one group of the first rotating shaft assemblies 17; in this embodiment, the first group of gear pairs (third gear 171 / first gear 161) is arranged above the second group of gear pairs (fourth gear 172 / second gear 162), and the second group of gear pairs is also located above the middle frame plate 11b of the frame; the first photovoltaic panel 12a and the second photovoltaic panel 12b are installed below the middle frame plate 11b of the frame.

[0084] Fig. 9The overall structure of the transmission mechanism composed of gears and synchronous belts is shown. After two groups of multi-layer photovoltaic panels (12a and 12b) of a group of photovoltaic panel units 1 are stacked and installed, one group of the second rotating shaft assemblies 17 in the transmission mechanism connected to the rotating shaft of each group of multi-layer photovoltaic panels is driven by the motor 175, and the remaining three groups of second rotating shaft assemblies 17 drive the synchronous wheels 173 in each group of second rotating shaft assemblies 17 through the synchronous belt 18 to achieve synchronous rotation. The second rotating shaft 15b in each group of the second rotating shaft assemblies 17 is driven to rotate by the first group of gear pairs, and at the same time, the shaft sleeve 164 in each group of the second rotating shaft assemblies 17 is driven to rotate by the second group of gear pairs, wherein the transmission ratio of the first group of gear pairs is twice that of the second group of gear pairs, so that the angular velocity of the rotation of the second rotating shaft 15b can be twice the angular velocity of the rotation of the shaft sleeve 164, thereby achieving the angular velocity of the rotation of the first photovoltaic panel 12a being twice the angular velocity of the rotation of the second photovoltaic panel 12b, thereby achieving the synchronous unfolding and folding of multiple groups of multi-layer photovoltaic panels.

[0085] Embodiment 3, transmission mechanism in the form of a combination of a sheave and a synchronous belt

[0086] It should be noted that the transmission mechanism in the photovoltaic panel unit 1 can also adopt a structure in which a groove wheel and a synchronous belt are combined, and the four first sets of gear pairs and the second set of gear pairs in the transmission mechanism in the form of a combination of gears and synchronous belts described in Example 2 are replaced by four sets of groove wheel pairs respectively; Fig.10 shows the overall schematic diagram of the transmission mechanism, Fig.11 Shows Fig.10 The connection and transmission relationship of the first rotating shaft assembly 1 and the second rotating shaft assembly 17 on the left side shown in FIG. Fig.11 As shown, the first rotating shaft assembly 1 includes a sleeve 164 and a first groove wheel 165 arranged on the second rotating shaft 15b, a second groove wheel 166 arranged on the sleeve 164, and the second rotating shaft assembly 17 includes a third rotating shaft 174 driven by the motor 175 or the synchronous belt 18, and the third rotating shaft 174 is provided with a groove wheel dial 176, and the groove wheel dial 176 is provided with a first groove wheel finger 177 and a second groove wheel finger 178, and the synchronous wheel 173 is arranged on the third rotating shaft 174.

[0087] In this embodiment, the first photovoltaic panel 12a and the first groove wheel 165 are both fixedly connected to the second rotating shaft 15b, and the second photovoltaic panel 12b and the second groove wheel 166 are both fixedly connected to the shaft sleeve 164; the groove wheel dial 176 is fixedly connected to the third rotating shaft 174 and driven by the motor 175 or the synchronous belt 18; in this embodiment, the first groove wheel finger 177 and the second groove wheel finger 178 are fixedly arranged at 180° on both sides of the groove wheel dial 176, and the first groove wheel finger 177 can drive the first groove wheel 165 and the second groove wheel 166 to rotate 90° when the first groove wheel finger 177 rotates one circle, and the second groove wheel finger 178 can drive the second groove wheel 166 to rotate 90° when the second groove wheel finger 178 rotates one circle. Therefore, when the groove wheel dial 176 rotates one circle, the first groove wheel 165 rotates 90°, and the second groove wheel 166 rotates 180°, so that the rotation angle of the second photovoltaic panel 12b is twice the rotation angle of the first photovoltaic panel 12a. Fig.11 As shown, one group of the rotating shafts 17 is driven by the motor 175, and the other three groups of the rotating shafts 17 are synchronized by the synchronous belt 18, thereby realizing the synchronous unfolding and folding of the four groups of the multi-layer photovoltaic flat panels 12. It should be further explained that in this embodiment, by adjusting the direction and speed of the motor 175, the multi-layer photovoltaic flat panel 12 can be unfolded and retracted in different directions and at different speeds.

[0088] Embodiment 4, base support with tilt adjustment device in the form of a slide bar mechanism and a drive structure

[0089] Fig.12The structure of the base bracket 2 of the present embodiment is shown, and the base bracket includes a base 21 and a sliding rod type tilt adjustment bracket 22; the base 21 includes four groups of supports, each group of supports includes a support leg 212 hinged to the cross bar 211 through a rotating pair, a foldable support rod connected to the rotating pair 21b and the rotating pair 3 21c between the cross bar 211 and the support leg 212, and the support rod includes a support rod 1 213 and a support rod 214 hinged through a rotating pair 4 21d; the sliding rod type tilt adjustment bracket 22 includes a sliding rod 221, a sliding groove 222, a locking pin 223, a spring 224, a ratchet groove 225, a rotating pair 5 22a and a rotating pair 6 22b. The bottom plate 11c of the photovoltaic panel unit 1 is hinged to the base 21 through a rotating joint 21a; one end of the tilt adjustment bracket 22 is rotationally connected to the bottom plate 11c of the photovoltaic panel unit 1 through a rotating joint 22a, and the other end is rotationally connected to the crossbar 211 of the base 21 through a rotating joint 22b. When the rotating joint 21d moves toward the direction approaching the rotating joint 21a, the support leg 212 can be driven to fold; when the rotating joint 21d moves away from the rotating joint 21a, until the support rod 1 213 and the support rod 214 are in line, the support leg 212 can be driven to unfold and lock. The locking pin 223 is elastically connected to the slide rod 221 through the spring 224, and the locking pin 223 can move along the axial direction of the spring 224; there are multiple slide grooves 225 structures on the slide groove 222, and the distance between the rotating pair 5 22a and the rotating pair 6 22b can be changed by clamping the locking pin 223 in different slide grooves 225, thereby changing the inclination angle of the bottom plate 11c.

[0090] Embodiment 5, base support with tilt adjustment device in the form of connecting rod mechanism and driving structure

[0091] Fig.15 The structure of the base bracket is shown. Fig.13 It shows the state that the base support supports the photovoltaic panel unit when the tilt adjustment device of the present invention is a connecting rod structure. Fig.14 Shows Fig.13 The base stand is shown folded.

[0092] like Fig.15 As shown, the base bracket is a connecting rod type tilt adjustment bracket 23, as shown in Fig.15As shown, the link type tilt adjustment bracket 23 includes a mounting seat 237 and a top plate 236, one side of the mounting seat 237 is provided with two groups of parallel boom links 232a and 232b, the other end of the mounting seat 237 is provided with two groups of boom electric cylinders 231a and 231b respectively connected to the boom links 232a and 232b, a small arm link 234 is hinged between the top plate 236 and the two groups of boom links 232a and 232b, the two sides of the small arm link 234 are respectively connected to the two groups of boom links 232a and 232b with small arm electric cylinders 233a and 233b, the bottom surface of the top plate 236 is hinged to one end of the top plate electric cylinder 235, and the other end of the top plate electric cylinder 235 is hinged to the small arm link 234; the upper surface of the top plate 236 is fixedly connected to the bottom plate 11c in the photovoltaic flat panel unit. By controlling the extension and retraction of the three groups of five electric cylinders (including two upper arm electric cylinders 231a and 231b, two lower arm electric cylinders 233a and 233b, and one top plate electric cylinder 235), the height and inclination of the top plate 236 can be adjusted, thereby achieving the adjustment of the height and inclination of the photovoltaic flat panel unit 1.

[0093] It should be noted that, in the present invention, the photovoltaic panel units 1 can be used in combination, and all are installed on the base support 2. The following describes the embodiments of the combination of two groups of photovoltaic panel units and the combination of four groups of photovoltaic panel units in the present invention in conjunction with the accompanying drawings.

[0094] Example 6: A foldable solar power generation device with two sets of photovoltaic panel units based on sliding

[0095] like Fig.16 As shown, a sliding-type foldable solar power generation device with two groups of photovoltaic panel units is provided. The two groups of photovoltaic panel units 1 are placed side by side on the support plate of the base support 2 with the light-receiving surface facing upward. The bottom plate 11c of each group of photovoltaic panel units is connected to the support plate through two groups of parallel linear slide mechanisms 4. The two groups of linear slide mechanisms 4 shared by the same group of photovoltaic panel units are fixedly connected to the base support 2 in parallel and side by side. Each group of the linear slide mechanisms 4 includes a linear slide 41, and the linear slide 41 is provided with two sliders fixed to the bottom plate 11c of the group of photovoltaic panel units, such as Fig.16As shown in the partial enlarged view in FIG, a linear slide 41 is equipped with a slider 42a and a slider 42b. When two groups of photovoltaic panel units 1 are unfolded, the two groups of photovoltaic panel units simultaneously move toward the outside of the support plate along the linear guide rails of the linear slide mechanism, and the moving distance is determined according to the area of ​​the photovoltaic flat plate; when the two groups of photovoltaic panel units 1 respectively move toward the outside of the support plate along the linear guide rails of their respective two groups of linear slide mechanisms at the same time, the function of the two groups of photovoltaic panel units 1 sliding toward both sides of the base support 2 at the same time is realized, and after sliding to the corresponding positions on both sides, the multi-layer photovoltaic flat plates can be unfolded, that is, the photovoltaic flat plates of each group of photovoltaic panel units 1 are unfolded by the transmission mechanism used to drive each group of photovoltaic flat plates to be unfolded or retracted synchronously, Fig. 20 The figure shows the unfolded state of the photovoltaic panels in the two groups of photovoltaic panel units of the device.

[0096] When the two groups of photovoltaic panel units 1 are folded and unfolded, the photovoltaic panels of each group of photovoltaic panel units 1 are first retracted by a transmission mechanism used to drive each group of photovoltaic panels to be synchronously unfolded or retracted, and then the two groups of photovoltaic panel units are simultaneously moved toward the inner side of the support plate to the initial position along the linear guide rail of the linear slide rail mechanism.

[0097] Example 7: Foldable solar power generation device based on two sets of foldable photovoltaic panel units

[0098] like Fig.17 and Fig.18 As shown, the foldable solar power generation device based on two groups of foldable photovoltaic panel units includes two groups of photovoltaic panel units 1, a base bracket 2, a power control system 3, and folding limit plates 8 are fixed on both sides of the base bracket 2, and the folding limit plates 8 are flush with the upper plane of the support plate of the base bracket 2; the two groups of photovoltaic panel units 1 are placed side by side on the support plate of the base bracket 2 with the light-receiving surface facing downward, and the edges of the bottom plates 11c of the two groups of photovoltaic panel units are rotatably connected to a group of opposite sides of the support plate through a rotating pair, and a group of folding torque compensation mechanisms 5 are provided at the connection of the rotating pair, as shown in FIG. Fig.19 As shown, the folding torque compensation mechanism 5 includes a folding support rod 51, a pull wire 52, a fixed pulley 53, a hook 54, a tension spring 55 and a tension spring fixing support 56, the tension spring fixing support 56 and the fixed pulley 53 are fixedly connected to the support plate of the bracket base 2, the fixed end of the tension spring 55 is connected to the tension spring fixing support 56, the free end of the tension spring 55 is connected to the hook 54, one end of the folding support rod 51 is fixedly connected to the bottom plate 11c of the photovoltaic panel unit, the other end of the folding support rod 51 is a cantilever end, one end of the pull wire 52 is fixed to the cantilever end of the folding support rod 51, and the other end of the pull wire 52 bypasses the fixed pulley 53 and is connected to the hook 54.

[0099] like Fig.19As shown, the photovoltaic panel unit 1 is folded by rotating the pairs 51a and 51b. Initially, the folding resistance torque of the photovoltaic panel unit 1 is the largest, the elongation of the tension spring 55 is also the largest, and the auxiliary torque provided by the folding torque compensation mechanism 5 is also the largest; when the folding angle is from 0 degrees to 90 degrees, the folding resistance torque of the photovoltaic panel unit 1 gradually decreases, the end of the folding support rod 51 rotates downward, the elongation of the tension spring 55 gradually decreases, and the auxiliary torque provided by the folding torque compensation mechanism 5 also gradually decreases; when the folding angle exceeds 90 degrees, the folding resistance torque of the photovoltaic panel unit 1 As the torque gradually increases, the end of the folding support rod 51 rotates upward, the elongation of the tension spring 55 gradually increases, and the auxiliary torque provided by the folding torque compensation mechanism 5 also gradually increases; when the folding angle reaches 180 degrees, the folding resistance torque of the photovoltaic panel unit 1 reaches a maximum again, and at this time, the elongation of the tension spring 55 is also the maximum, and the auxiliary torque provided by the folding torque compensation mechanism 5 also reaches a maximum again; therefore, through the folding torque compensation mechanism 5, the folding external force can be maintained within a certain small range during the process of folding the photovoltaic panel unit 1, thereby achieving the effect of compensating the folding torque.

[0100] When the two groups of photovoltaic panel units 1 are unfolded, the two groups of photovoltaic panel units are respectively rotated around their respective rotation pairs to the outside of the support plate, and the rotation angle is 180°. The folding limit plate 8 supports the folded photovoltaic panel units; then, the photovoltaic panels of each group of photovoltaic panel units 1 are unfolded by a transmission mechanism for driving each group of photovoltaic panels to be synchronously unfolded or retracted. Fig. 20 1 is a state diagram of the photovoltaic panels in the two groups of photovoltaic panel units in this embodiment after being unfolded.

[0101] When the two groups of photovoltaic panel units 1 are folded and unfolded, the photovoltaic panels of each group of photovoltaic panel units 1 are first retracted through the transmission mechanism used to drive each group of photovoltaic panels to unfold or retract synchronously, and then the two groups of photovoltaic panel units are respectively rotated around their respective rotation pairs to the inner side of the support plate, and the rotation angle is 180°.

[0102] It should be noted that in the above two combinations of photovoltaic panel units, only the movement modes of the two photovoltaic panel units 1 are different, and the unfolding forms of the multi-layer photovoltaic flat panels 12 are the same. The unfolded structure is as follows: Fig. 20 shown.

[0103] Example 8: Foldable solar power generation device based on four rotating photovoltaic panel units

[0104] like Fig.21 As shown, the foldable solar power generation device based on four rotating photovoltaic panel units includes four photovoltaic panel units 1, a base support 2, a power control system 3, and four rotating shaft components 6.

[0105] The area of ​​the support plate of the base bracket 2 covers the area of ​​four groups of photovoltaic panel units, and the four groups of photovoltaic panel units are arranged on the support plate with the light-receiving surface facing upward in a 2×2 matrix position. The bottom plate 11c of the four groups of photovoltaic panel units is rotatably connected to the four top corners of the support plate through a rotating shaft assembly, and the axis of the rotating shaft assembly is perpendicular to the bottom plate 11c; Fig. 22 As shown, the rotating shaft assembly 6 includes a rotating shaft 61, a bearing 62 and a rotating shaft mounting plate 63; the rotating shaft mounting plate 63 is fixedly connected to the base bracket 2, and the rotating shaft 61 is connected to the rotating shaft mounting plate 63 through the bearing 62. At the same time, the rotating shaft 61 is fixedly connected to the bottom plate 11c of the frame in the photovoltaic panel unit, so that the photovoltaic panel unit 1 can rotate around the rotating shaft 61, thereby realizing the rotation and deployment of the four groups of photovoltaic panel units 1.

[0106] When the four photovoltaic panel units 1 are unfolded, the four photovoltaic panel units are respectively rotated 180° around the axis of the rotating shaft assembly rotatably connected to the support plate; then, the photovoltaic panels of each photovoltaic panel unit 1 are unfolded by a transmission mechanism for driving each photovoltaic panel to be synchronously unfolded or retracted. Fig.26 The figure shows the unfolded state of the photovoltaic panels in four groups of photovoltaic panel units.

[0107] When the two groups of photovoltaic panel units 1 are folded and unfolded, the photovoltaic panels of each group of photovoltaic panel units 1 are first retracted through the transmission mechanism used to drive each group of photovoltaic panels to unfold or retract synchronously, and then the four groups of photovoltaic panel units are respectively rotated 180° around the axis of the rotating shaft assembly rotatably connected to the support plate.

[0108] Example 9: Foldable solar power generation device based on four foldable photovoltaic panel units

[0109] like Fig.23 and Fig.24 As shown, the foldable solar power generation device based on four foldable photovoltaic panel units includes four photovoltaic panel units 1, a base bracket 2 and a power control system 3. Folding limit plates 8 are fixed on both sides of the base bracket 2, and the folding limit plates 8 are flush with the upper plane of the support plate of the base bracket 2; the area of ​​the support plate of the base bracket 2 covers the area of ​​the four photovoltaic panel units, and the four photovoltaic panel units are arranged on the support plate with the light-receiving surface facing downward in a 2×2 matrix position. The top plates 11a of the four photovoltaic panel units are rotatably connected to the four vertex corners of the support plate, and the axis of the rotating pair 71a at each rotating connection is aligned with the diagonal of the vertex where it is located ( Fig.24 The double-dotted line in the figure is vertical. Fig.24 The double-dotted line in the middle is: a set of folding torque compensation mechanism 7 is provided at the connection of the rotating pair 71a.

[0110] like Fig.25 As shown, the folding torque compensation mechanism 7 includes a folding plate 71, a folding support rod 72, a pull wire 73, a fixed pulley 74, a hook 75, a tension spring 76, a tension spring fixing support 77 and a mounting plate 78; the folding plate 71 is fixedly connected to the frame 11 of the photovoltaic panel unit 1, and is connected to the base bracket 2 through a rotating pair 71a, so that the photovoltaic panel unit 1 can be folded 180 degrees; the tension spring fixing support 77 and the fixed pulley 74 are fixedly connected to the mounting plate 78, and the mounting plate 78 is connected to the The base bracket 2 is fixedly connected, the fixed end of the tension spring 76 is connected to the tension spring fixed support 77, and the free end is connected to the hook 75. The right end of the folding support rod 72 is fixed to the frame 11 of the photovoltaic panel unit, and can be folded along with the photovoltaic panel unit 1. One end of the pull wire 73 is connected to the left end of the folding support rod 72, and the other end bypasses the fixed pulley 74 and is connected to the hook 75. During the folding process, the folding torque can be compensated by the change in the elongation of the tension spring 76.

[0111] When the four groups of photovoltaic panel units 1 are unfolded, the four groups of photovoltaic panel units are respectively rotated 180° around their respective rotation pairs 71a with the support plate; then, the photovoltaic panels of each group of photovoltaic panel units 1 are unfolded by a transmission mechanism for driving each group of photovoltaic panels to be synchronously unfolded or retracted. In this embodiment, among the four groups of photovoltaic panel unit combinations, only the movement modes of the four groups of photovoltaic panel units 1 are different, and the unfolding modes of the multi-layer photovoltaic panels 12 are the same. Fig.26 Its unfolded state is shown.

[0112] When the two groups of photovoltaic panel units 1 are folded and unfolded, the photovoltaic panels of each group of photovoltaic panel units 1 are first retracted through the transmission mechanism used to drive each group of photovoltaic panels to unfold or retract synchronously, and then the four groups of photovoltaic panel units are rotated back 180° around their respective rotation pairs 71a with the support plate.

[0113] In the above description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top", "middle", "bottom", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0114] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0115] Although the present invention has been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can make many improvements and changes without departing from the purpose of the present invention, which are all within the protection of the present invention.

Claims

1. A foldable solar power generation device, comprising a base support (2), N groups of photovoltaic panel units (1) and a control system (3), characterized in that: Each group of photovoltaic panel units (1) comprises a top plate (11a), an intermediate frame plate (11b) and a bottom plate (11c) arranged from top to bottom, and a plurality of stacked photovoltaic flat plates (12) are respectively arranged between the top plate (11a) and the intermediate frame plate (11b) and between the intermediate frame plate (11b) and the bottom plate (11c), and the plurality of photovoltaic flat plates (12) are divided into a first group of photovoltaic flat plates and a second group of photovoltaic flat plates, and each group comprises two photovoltaic flat plates; The middle frame plate (11b) and the top plate (11a) are respectively provided with first rotating shafts (15a) at two vertices of a vertices line of the same rectangle, and the first group of photovoltaic flat panels and the second group of photovoltaic flat panels located between the middle frame plate (11b) and the top plate (11a) are respectively fixed to the two first rotating shafts (15a); The middle frame plate (11b) and the bottom plate (11c) are respectively provided with second rotating shafts (15b) at two vertices of another vertices line of the rectangle, and the first group of photovoltaic flat panels and the second group of photovoltaic flat panels located between the middle frame plate (11b) and the bottom plate (11c) are respectively fixed to the two second rotating shafts (15b); A transmission mechanism for driving each group of photovoltaic panels to be synchronously unfolded or retracted is connected between the two first rotating shafts (15a) and the two second rotating shafts (15b), and the transmission mechanism is one of the following three structural forms: a rope wheel transmission mechanism driven by a motor, a gear and synchronous belt combination transmission mechanism driven by a motor, and a groove wheel and synchronous belt combination transmission mechanism driven by a motor; The transmission mechanism is provided with a locking structure; The number N of photovoltaic panel units (1) is greater than or equal to 1; The base support (2) comprises a support plate and an inclination adjustment device, and the bottom plate (11c) of each group of photovoltaic panel units is connected to the support plate of the base support (2).

2. The foldable solar power generation device according to claim 1, characterized in that: The locking structure is a mechanical locking structure or an electromagnetic locking structure. The mechanical locking structure is a ratchet mechanism or a mechanical brake. The electromagnetic locking structure is an electromagnetic adsorption structure or an electromagnetic clutch.

3. The foldable solar power generation device according to claim 1, characterized in that: The control system (3) comprises a solar controller, a voltage converter, an inverter and a battery pack; the solar controller implements maximum power point tracking control of the photovoltaic panel, the voltage converter completes the step-down or step-up conversion between the DC input voltage and the output voltage, the inverter completes the conversion from DC to AC, and the battery pack is used for low-power power generation and temporary energy storage in a non-charging state; the control system (3) monitors the voltage, current, power, and battery power data during solar power generation and charging in real time, and counts and records the charging and power generation time and the cumulative charging data by year, month, day, and hour, and the control system (3) is connected to a host computer display panel or provides the above data to the user in a remote communication manner.

4. The foldable solar power generation device according to claim 3, characterized in that: The base bracket (2) is a lifting bracket, and the inclination adjustment device is a sliding rod mechanism and a driving structure, or a connecting rod mechanism and a driving structure. Most driving structures are any one of an electric cylinder, a pneumatic cylinder and a hydraulic cylinder; the driving structure is connected to the solar controller.

5. The foldable solar power generation device according to claim 1, characterized in that: N=2, two groups of photovoltaic panel units (1) are placed side by side on the support plate of the base support (2) with the light-receiving surface facing downward, the edges of the bottom plates (11c) of the two groups of photovoltaic panel units are rotatably connected to a group of opposite sides of the support plate via a rotating pair, a group of folding torque compensation mechanisms are provided at the connection of the rotating pair, and folding limit plates (8) are fixed on both sides of the base support (2), and the folding limit plates (8) are flush with the upper plane of the support plate of the base support (2); When the two groups of photovoltaic panel units (1) are unfolded, the two groups of photovoltaic panel units are respectively rotated around their respective rotation pairs to the outside of the support plate, and the rotation angle is 180°, and the folding limit plate (8) supports the folded photovoltaic panel units; then, the photovoltaic panels of each group of photovoltaic panel units (1) are unfolded by a transmission mechanism used to drive each group of photovoltaic panels to be synchronously unfolded or retracted; When the two groups of photovoltaic panel units (1) are folded and unfolded, the photovoltaic panels of each group of photovoltaic panel units (1) are first retracted by a transmission mechanism used to drive each group of photovoltaic panels to be synchronously unfolded or retracted, and then the two groups of photovoltaic panel units are respectively rotated around their respective rotation pairs to the inner side of the support plate, and the rotation angle is 180°.

6. The foldable solar power generation device according to claim 1, characterized in that: N=2, two groups of photovoltaic panel units (1) are placed side by side on the support plate of the base support (2) with the light-receiving surface facing upward, and the bottom plate (11c) of each group of photovoltaic panel units is connected to the support plate via two groups of parallel linear slide rail mechanisms; When the two groups of photovoltaic panel units (1) are unfolded, the two groups of photovoltaic panel units are simultaneously moved toward the outside of the support plate along the linear guide rails of their two groups of linear slide rail mechanisms, and the moving distance is determined according to the area of ​​the photovoltaic flat panel; then, the photovoltaic flat panel of each group of photovoltaic panel units (1) is unfolded by a transmission mechanism used to drive each group of photovoltaic flat panels to be synchronously unfolded or retracted; When the two groups of photovoltaic panel units (1) are folded and unfolded, the photovoltaic panels of each group of photovoltaic panel units (1) are first retracted by a transmission mechanism used to drive each group of photovoltaic panels to be synchronously unfolded or retracted, and then the two groups of photovoltaic panel units are simultaneously moved along the linear guide rails of the linear slide rail mechanism toward the inner side of the support plate to the initial position.

7. The foldable solar power generation device according to claim 1, characterized in that: N=4, the area of ​​the support plate of the base support (2) covers the area of ​​four groups of photovoltaic panel units, the four groups of photovoltaic panel units are arranged on the support plate with the light-receiving surface facing upward in a 2×2 matrix position, the bottom plates (11c) of the four groups of photovoltaic panel units are rotatably connected to the four top corners of the support plate via a rotating shaft assembly, and the axis of the rotating shaft assembly is perpendicular to the bottom plate (11c); When the four groups of photovoltaic panel units (1) are unfolded, the four groups of photovoltaic panel units are respectively rotated 180° around the axis of the rotating shaft assembly rotatably connected to the support plate; then, the photovoltaic panels of each group of photovoltaic panel units (1) are unfolded by a transmission mechanism used to drive each group of photovoltaic panels to be synchronously unfolded or retracted; When the two groups of photovoltaic panel units (1) are folded and unfolded, the photovoltaic panels of each group of photovoltaic panel units (1) are first retracted through a transmission mechanism used to drive each group of photovoltaic panels to be synchronously unfolded or retracted, and then the four groups of photovoltaic panel units are respectively rotated 180 degrees around the axis of the rotating shaft assembly rotatably connected to the support plate.

8. The foldable solar power generation device according to claim 1, characterized in that: N=4, the area of ​​the support plate of the base support (2) covers the area of ​​four groups of photovoltaic panel units, the four groups of photovoltaic panel units are arranged on the support plate with the light-receiving surface facing downward in a 2×2 matrix position, the top plates (11a) of the four groups of photovoltaic panel units are rotatably connected to the four vertex corners of the support plate respectively, and the axis of the rotating pair (71a) at each rotating connection is perpendicular to the diagonal of the vertex where it is located; A set of folding torque compensation mechanisms is provided at the connection of the rotating pair (71a); folding limit plates (8) are fixedly connected to both sides of the base bracket (2), and the folding limit plates (8) are flush with the upper plane of the support plate of the base bracket (2); When the four groups of photovoltaic panel units (1) are unfolded, the four groups of photovoltaic panel units are respectively rotated 180° around their respective rotation pairs (71a) with the support plate; then, the photovoltaic panels of each group of photovoltaic panel units (1) are unfolded by a transmission mechanism for driving each group of photovoltaic panels to be unfolded or retracted synchronously; When the two groups of photovoltaic panel units (1) are folded and unfolded, the photovoltaic panels of each group of photovoltaic panel units (1) are first retracted through a transmission mechanism used to drive each group of photovoltaic panels to be synchronously unfolded or retracted, and then the four groups of photovoltaic panel units are respectively rotated back 180 degrees around their respective rotation pairs (71a) with the support plate.

9. The foldable solar power generation device according to claim 5, characterized in that: The folding torque compensation mechanism comprises a folding support rod (51), a tension wire (52), a fixed pulley (53), a hook (54), a tension spring (55) and a tension spring fixing support (56); the tension spring fixing support (56) and the fixed pulley (53) are fixedly connected to the support plate of the bracket base (2); the fixed end of the tension spring (55) is connected to the tension spring fixing support (56); the free end of the tension spring (55) is connected to the hook (54); one end of the folding support rod (51) is fixedly connected to the bottom plate (11c) of the photovoltaic panel unit; the other end of the folding support rod (51) is a cantilever end; one end of the tension wire (52) is fixed to the cantilever end of the folding support rod (51); the other end of the tension wire (52) bypasses the fixed pulley (53) and is connected to the hook (54).

10. The foldable solar power generation device according to claim 8, characterized in that: The folding torque compensation mechanism comprises a folding plate (71), a folding support rod (72), a pull wire (73), a fixed pulley (74), a hook (75), a tension spring (76), a tension spring fixing support (77) and a mounting plate (78); the folding plate (71) is fixedly connected to the bottom plate (11c) of the photovoltaic panel unit, and is rotationally connected to the support plate of the base bracket (2) through the rotation pair (71); the mounting plate (78) is fixedly connected to the support plate, and the tension spring fixing support (77) and the fixed pulley (74) are both fixedly connected. The tension spring (76) is connected to the mounting plate (78), the fixed end of the tension spring (76) is connected to the tension spring fixing support (77), the free end of the tension spring (76) is connected to the hook (75), one end of the folding support rod (72) is fixedly connected to the bottom plate (11c) of the photovoltaic panel unit, the other end of the folding support rod (72) is a cantilever end, one end of the pull wire (73) is connected to the cantilever end of the folding support rod (72), and the other end of the pull wire (73) passes around the fixed pulley (74) and is connected to the hook (75).

Images